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Note: This page contains sample records for the topic "3d gravity inversion" from the National Library of EnergyBeta (NLEBeta).
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1

Investigations in massive 3D gravity  

SciTech Connect (OSTI)

Some interesting gravitational properties of the Bergshoeff-Hohm-Townsend model (massive 3D gravity), such as the presence of a short-range gravitational force in the nonrelativistic limit and the existence of an impact-parameter-dependent gravitational deflection angle, are studied. Interestingly enough, these phenomena have no counterpart in the usual Einstein 3D gravity. In order to better understand the two aforementioned gravitational properties, they are also analyzed in the framework of 3D higher-derivative gravity with the Einstein-Hilbert term with the 'wrong sign'.

Accioly, Antonio [Laboratorio de Fisica Experimental (LAFEX), Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Urca, 22290-180, Rio de Janeiro, RJ (Brazil); Instituto de Fisica Teorica (IFT), Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bloco II-Barra Funda, 01140-070, Sao Paulo, SP (Brazil); Helayeel-Neto, Jose; Morais, Jefferson; Turcati, Rodrigo [Laboratorio de Fisica Experimental (LAFEX), Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Urca, 22290-180, Rio de Janeiro, RJ (Brazil); Scatena, Eslley [Instituto de Fisica Teorica (IFT), Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bloco II-Barra Funda, 01140-070, Sao Paulo, SP (Brazil)

2011-05-15T23:59:59.000Z

2

Application of the 2 principle and unbiased predictive risk estimator for determining the regularization parameter in 3-D focusing gravity inversion  

Science Journals Connector (OSTI)

......rhomax] are imposed. During the inversion process if a given density value falls outside...which further complicates the solution process. First, an approach for determining...Abstracts. 251-254. 69th Ann. Internat. Mtg. Mead J.L. , Renaut R.A. A Newton......

Saeed Vatankhah; Vahid E. Ardestani; Rosemary A. Renaut

2015-01-01T23:59:59.000Z

3

Conserved charges in 3D gravity  

Science Journals Connector (OSTI)

The covariant canonical expression for the conserved charges, proposed by Nester, is tested on several solutions in three-dimensional gravity with or without torsion and topologically massive gravity. In each of these cases, the calculated values of energy momentum and angular momentum are found to satisfy the first law of black hole thermodynamics.

M. Blagojevi? and B. Cvetkovi?

2010-06-09T23:59:59.000Z

4

Conserved charges in 3D gravity  

SciTech Connect (OSTI)

The covariant canonical expression for the conserved charges, proposed by Nester, is tested on several solutions in three-dimensional gravity with or without torsion and topologically massive gravity. In each of these cases, the calculated values of energy momentum and angular momentum are found to satisfy the first law of black hole thermodynamics.

Blagojevic, M.; Cvetkovic, B. [University of Belgrade, Institute of Physics, P. O. Box 57, 11001 Belgrade (Serbia)

2010-06-15T23:59:59.000Z

5

An alternative derivation of the Minimal massive 3D gravity  

E-Print Network [OSTI]

By using the algebra of exterior forms and the first order formalism with constraints, an alternative derivation of the field equations for the Minimal massive 3D gravity model is presented.

Ahmet Baykal

2014-08-22T23:59:59.000Z

6

New solutions in 3D gravity  

Science Journals Connector (OSTI)

We study gravitational theory in 1+2 spacetime dimensions which is determined by the Lagrangian constructed as a sum of the Einstein-Hilbert term plus the two (translational and rotational) gravitational Chern-Simons terms. When the corresponding coupling constants vanish, we are left with purely Einstein theory of gravity. We obtain new exact solutions for the gravitational field equations with nontrivial material sources. Special attention is paid to plane-fronted gravitational waves (in case of the Maxwell field source) and to the circularly symmetric as well as the anisotropic cosmological solutions which arise for the ideal fluid matter source.

Yuri N. Obukhov

2003-12-19T23:59:59.000Z

7

Dualities of 3D dilaton gravity  

Science Journals Connector (OSTI)

We investigate Brans-Dicke dilaton gravity theories in 2+1 dimensions. We show that the reduced field equations for solutions with a diagonal metric and depending only on one spacetime coordinate have a continuous O(2) symmetry. Using this symmetry we derive general static and cosmological solutions of the theory. The action of the discrete group O(2,Z) on the space of the solutions is discussed. Three-dimensional string effective theory and three-dimensional general relativity are discussed in detail. In particular, we find that the previously discovered black string solution is dual to a spacetime with a conical singularity.

Mariano Cadoni

1996-12-15T23:59:59.000Z

8

More on massive 3D gravity  

Science Journals Connector (OSTI)

We explore the space of static solutions of the recently discovered three-dimensional “new massive gravity” (NMG), allowing for either sign of the Einstein-Hilbert term and a cosmological term parametrized by a dimensionless constant ?. For ?=-1 we find black hole solutions asymptotic (but not isometric) to the unique (anti) de Sitter [(A)dS] vacuum, including extremal black holes that interpolate between this vacuum and (A)dS2×S1. We also investigate unitarity of linearized NMG in (A)dS vacua. We find unitary theories for some dS vacua, but (bulk) unitarity in AdS implies negative central charge of the dual conformal field theories (CFT), except for ?=3 where the central charge vanishes and the bulk gravitons are replaced by “massive photons.” A similar phenomenon is found in the massless limit of NMG, for which the linearized equations become equivalent to Maxwell’s equations.

Eric A. Bergshoeff; Olaf Hohm; Paul K. Townsend

2009-06-26T23:59:59.000Z

9

Electric field in 3D gravity with torsion  

E-Print Network [OSTI]

It is shown that in static and spherically symmetric configurations of the system of Maxwell field coupled to 3D gravity with torsion, at least one of the Maxwell field components has to vanish. Restricting our attention to the electric sector of the theory, we find an interesting exact solution, corresponding to the azimuthal electric field. Its geometric structure is to a large extent influenced by the values of two different central charges, associated to the asymptotic AdS structure of spacetime.

M. Blagojevi?; B. Cvetkovi?

2008-09-01T23:59:59.000Z

10

Solution accelerators for large scale 3D electromagnetic inverse problems  

SciTech Connect (OSTI)

We provide a framework for preconditioning nonlinear 3D electromagnetic inverse scattering problems using nonlinear conjugate gradient (NLCG) and limited memory (LM) quasi-Newton methods. Key to our approach is the use of an approximate adjoint method that allows for an economical approximation of the Hessian that is updated at each inversion iteration. Using this approximate Hessian as a preconditoner, we show that the preconditioned NLCG iteration converges significantly faster than the non-preconditioned iteration, as well as converging to a data misfit level below that observed for the non-preconditioned method. Similar conclusions are also observed for the LM iteration; preconditioned with the approximate Hessian, the LM iteration converges faster than the non-preconditioned version. At this time, however, we see little difference between the convergence performance of the preconditioned LM scheme and the preconditioned NLCG scheme. A possible reason for this outcome is the behavior of the line search within the LM iteration. It was anticipated that, near convergence, a step size of one would be approached, but what was observed, instead, were step lengths that were nowhere near one. We provide some insights into the reasons for this behavior and suggest further research that may improve the performance of the LM methods.

Newman, Gregory A.; Boggs, Paul T.

2004-04-05T23:59:59.000Z

11

Application Of 3D Inversion To Magnetotelluric Data In The Ogiri...  

Open Energy Info (EERE)

Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Area, Japan Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Application Of 3D...

12

figures for inverse problem paper in 3d - Department of Mathematics ...  

E-Print Network [OSTI]

FIGURES FOR INVERSE PROBLEM PAPER IN 3D. JUAN E. SANTOS. Departamento de Geof sica Aplicada, Facultad de Ciencias Astron omicas y Geof sicas,.

santos

1910-20-20T23:59:59.000Z

13

Next steps in understanding the asymptotics of $3d$ quantum gravity  

E-Print Network [OSTI]

Based on a combinatorial approach and random matrix theory, we show a central limit theorem that gives important insight into causally triangulated $3d$ quantum gravity.

Maria Simonetta Bernabei; Horst Thaler

2014-12-10T23:59:59.000Z

14

Application Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal  

Open Energy Info (EERE)

Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Area, Japan Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Application Of 3D Inversion To Magnetotelluric Data In The Ogiri Geothermal Area, Japan Details Activities (0) Areas (0) Regions (0) Abstract: A stable inversion technique has been developed for threedimensional (3D) interpretation of magnetotelluric (MT) data. The inversion method is based on the Gauss-Newton (linearized least-squares) method with smoothness regularization. Static shifts are also treated as unknown parameters in the inversion. The forward modeling is done by using the staggered-grid finite difference method. A Bayesian criterion ABIC is applied to searching for the optimum trade-off among the minimization of

15

3D gravity and non-linear cosmology  

E-Print Network [OSTI]

By the inclusion of an additional term, non-linear in the scalar curvature $R$, it is tested if dark energy could rise as a geometrical effect in 3D gravitational formulations. We investigate a cosmological fluid obeying a non-polytropic equation of state (the van der Waals equation) that is used to construct the energy-momentum tensor of the sources, representing the hypothetical inflaton in gravitational interaction with a matter contribution. Following the evolution in time of the scale factor, its acceleration, and the energy densities of constituents it is possible to construct the description of an inflationary 3D universe, followed by a matter dominated era. For later times it is verified that, under certain conditions, the non-linear term in $R$ can generate the old 3D universe in accelerated expansion, where the ordinary matter is represented by the barotropic limit of the van der Waals constituent.

F. P. Devecchi; M. L. Froehlich

2005-10-11T23:59:59.000Z

16

Deformed phase space for 3d loop gravity and hyperbolic discrete geometries  

E-Print Network [OSTI]

We revisit the loop gravity space phase for 3D Riemannian gravity by algebraically constructing the phase space $T^*\\mathrm{SU}(2)\\sim\\mathrm{ISO}(3)$ as the Heisenberg double of the Lie group $\\mathrm{SO}(3)$ provided with the trivial cocyle. Tackling the issue of accounting for a non-vanishing cosmological constraint $\\Lambda \

Valentin Bonzom; Maité Dupuis; Florian Girelli; Etera R. Livine

2014-02-10T23:59:59.000Z

17

On Solutions of Minimal Massive 3D Gravity  

E-Print Network [OSTI]

We look at solutions of Minimal Massive Gravity (MMG), a generalisation of Topologically Massive Gravity (TMG) that improves upon its holographic properties. It is shown that generically (in MMG parameter space) all conformally flat solutions of vacuum MMG are locally isometric to one of the two (A)dS vacua of the theory. We then couple a scalar field, and find that domain wall solutions can only interpolate between these two vacua precisely when the bulk graviton is tachyonic. Finally, we find a non-BTZ AdS black hole solution satisfying Brown-Henneaux boundary conditions, which lies within the "bulk/ boundary unitarity region".

Arvanitakis, Alex S

2015-01-01T23:59:59.000Z

18

Linearized inversion of 3-D multi-offset data: background reconstruction and AVO inversion  

Science Journals Connector (OSTI)

......computation time, in this process, can be substantially...62ndAnn. Internat. Mtg, Soc. Expl. Geophys...Presented at the 46th Mtg Europ.Assn Expl. Geophys...computation time, in this process, can be substantially...outside the plane where the process is applied. The 3-D......

L. T. Ikelle

1995-11-01T23:59:59.000Z

19

3-D Inversion Of Borehole-To-Surface Electrical Data Using A  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » 3-D Inversion Of Borehole-To-Surface Electrical Data Using A Back-Propagation Neural Network Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3-D Inversion Of Borehole-To-Surface Electrical Data Using A Back-Propagation Neural Network Details Activities (0) Areas (0) Regions (0) Abstract: The "fluid-flow tomography", an advanced technique for geoelectrical survey based on the conventional mise-a-la-masse measurement, has been developed by Exploration Geophysics Laboratory at the Kyushu University. This technique is proposed to monitor fluid-flow behavior

20

On higher derivatives in 3D gravity and higher-spin gauge theories  

SciTech Connect (OSTI)

The general second-order massive field equations for arbitrary positive integer spin in three spacetime dimensions, and their 'self-dual' limit to first-order equations, are shown to be equivalent to gauge-invariant higher-derivative field equations. We recover most known equivalences for spins 1 and 2, and find some new ones. In particular, we find a non-unitary massive 3D gravity theory with a 5th order term obtained by contraction of the Ricci and Cotton tensors; this term is part of an N=2 super-invariant that includes the 'extended Chern-Simons' term of 3D electrodynamics. We also find a new unitary 6th order gauge theory for 'self-dual' spin 3.

Bergshoeff, Eric A. [Centre for Theoretical Physics, University of Groningen, Nijenborgh 4, 9747 AG Groningen (Netherlands)], E-mail: E.A.Bergshoeff@rug.nl; Hohm, Olaf [Centre for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)], E-mail: ohohm@mit.edu; Townsend, Paul K. [Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)], E-mail: P.K.Townsend@damtp.cam.ac.uk

2010-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Velocity model-building by 3D frequency-domain, full-waveform inversion of wide-aperture seismic data  

E-Print Network [OSTI]

Velocity model-building by 3D frequency-domain, full-waveform inversion of wide-aperture seismic, any approach that helps to auto- mate and optimize velocity model-building will speed up the output . The most common approaches for building a PSDM velocity model rely on reflection traveltime tomography e

Vallée, Martin

22

Non-linear traveltime inversion for 3-D seismic tomography in strongly anisotropic media  

Science Journals Connector (OSTI)

......low velocity body (Shale 2) and produces many...of the non-linear anisotropic inversion, we obtained...high velocity body (Shale 1) and fails to indicate...low velocity block (Shale 2). By contrast...of the non-linear anisotropic inversion yields clear......

Bing Zhou; Stewart Greenhalgh

2008-01-01T23:59:59.000Z

23

Ground Gravity Survey At Walker Lake Valley Area (Shoffner, Et...  

Open Energy Info (EERE)

N. Hinz, A. Sabin, M. Lazaro, S. Alm (2010) Understanding Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada...

24

Three-dimensional geologic structures from inversion of gravity anomalies  

E-Print Network [OSTI]

from an analysis of the sampling interval. 39 100 80 z0= 7km p = 1gm/cra R, /R6= 2 ~ 10 60 mgal . ~ ~ Numerical Integration Parker Method 40 20 64 56 48 40 32 km 10 a) 24 16 8 mgal ! km 10b) 16 8 Figure 10. Gravity profile across.... The input was the gravity profile shown in Figure 5. The model parameters are the same used by Oldenburg (1974, Figure 2, p. 533) for the case Z =6km. . . . . . . . . . . . . . . . 33 Comparison of gravity profiles from the cosine model and from...

Hinson, Charles Alvin

2012-06-07T23:59:59.000Z

25

Time-lapse gravity inversion with an active time constraint  

Science Journals Connector (OSTI)

......volcanic activity and geothermal fields (e.g...potential (potential energy per unit mass...the computational cost of the inversion...funding from DOE (Geothermal Technology Advancement...the CO2 plume. Energy Proc. (2011...ground water flow in geothermal fields. J. geophys......

M. Karaoulis; A. Revil; B. Minsley; M. Todesco; J. Zhang; D.D. Werkema

2014-01-01T23:59:59.000Z

26

Time-lapse gravity inversion with an active time constraint  

Science Journals Connector (OSTI)

......J. Zhang 1 D.D. Werkema 5 1 Department of Geophysics, Colorado School of Mines, Golden, CO 80401, USA. E-mail: arevil...We applied the time-lapse inversion algorithm to a water-flood and secondary oil recovery experiment in which water was injected......

M. Karaoulis; A. Revil; B. Minsley; M. Todesco; J. Zhang; D.D. Werkema

2014-01-01T23:59:59.000Z

27

Inversion of regional gravity gradient data over the Vredefort Impact Structure, South Africa Cericia Martinez and Yaoguo Li  

E-Print Network [OSTI]

Inversion of regional gravity gradient data over the Vredefort Impact Structure, South Africa- try data over the Vredefort Impact Structure in South Africa. With the rapidly growing field impact structure in South Africa. INTRODUCTION Gravity has long been used to study and characterize

28

Zero gravity two-phase flow regime transition modeling compared with data and relap5-3d predictions  

E-Print Network [OSTI]

in the computer code do not scale to zero gravity. A new flow regime map is needed for zero gravity conditions. Three bubbly-to-slug transition models and four slug-to-annular transition models are analyzed and compared with the data. A mathematical method...

Ghrist, Melissa Renee

2009-05-15T23:59:59.000Z

29

Application of 3D electrical resistivity imaging in an underground potash mine Robert A. Eso and Douglas W. Oldenburg, University of British ColumbiaGeophysical Inversion Facility  

E-Print Network [OSTI]

Application of 3D electrical resistivity imaging in an underground potash mine Robert A. Eso it possible to explore for water infiltrated areas in underground salt mines using electrical resistivity the application of 3D electrical resistivity imaging (ERI) in an underground potash mine located in Saskatchewan

Oldenburg, Douglas W.

30

3D Magnetotelluic characterization of the Coso Geothermal Field  

E-Print Network [OSTI]

and Neubauer, F. M. , 2003, 3D inversion of a scalar radio3D MAGNETOTELLURIC CHARACTERIZATION OF THE COSO GEOTHERMALMT imaging. An initial 3D conductivity model was constructed

Newman, Gregory A.; Hoversten, G. Michael; Wannamaker, Philip E.; Gasperikova, Erika

2008-01-01T23:59:59.000Z

31

3D NUCLEAR SEGMENTAT  

Energy Science and Technology Software Center (OSTI)

003029WKSTN00 Delineation of nuclear structures in 3D multicellular systems  https://vision.lbl.gov/Software/3DMorphometry/ 

32

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

33

F3D  

Energy Science and Technology Software Center (OSTI)

003188MLTPL00 F3D Image Processing and Analysis for Many - and Multi-core Platforms  http://camera.lbl.gov/software 

34

Graphene's 3D Counterpart  

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

Print ALS researchers have discovered a material that is essentially a 3D version of graphene-the 2D sheets of carbon through which electrons race at many times the speed at which...

35

Graphene's 3D Counterpart  

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

08:59 ALS researchers have discovered a material that is essentially a 3D version of graphene-the 2D sheets of carbon through which electrons race at many times the speed at which...

36

3D Plasmon Ruler  

SciTech Connect (OSTI)

In this animation of a 3D plasmon ruler, the plasmonic assembly acts as a transducer to deliver optical information about the structural dynamics of an attached protein. (courtesy of Paul Alivisatos group)

None

2011-01-01T23:59:59.000Z

37

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

3D Computer Vision and Video Computing 3D Vision3D Vision CSC I6716 Fall 2010 Topic 1 of Part II Camera Models Zhigang Zhu, City College of New York zhu@cs.ccny.cuny.edu #12;3D Computer Vision and Video Computing 3D Vision3D Vision Closely Related Disciplines Image Processing ­ images to mages Computer

Zhu, Zhigang

38

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

1 3D Computer Vision and Video Computing 3D Vision3D Vision Topic 1 of Part II Camera Models CSC I6716 Spring2011 Zhigang Zhu, City College of New York zhu@cs.ccny.cuny.edu 3D Computer Vision and Video Computing 3D Vision3D Vision Closely Related Disciplines Image Processing ­ images to mages Computer

Zhu, Zhigang

39

Effective elastic properties of randomly fractured soils: 3D numerical ...  

E-Print Network [OSTI]

The standard Gassmann equation cannot be applied to our 3D fractured media ... Finite-difference methods discretize the wave equation on a grid. They replace ...... 55/2-2) and the Wave Inversion Technology (WIT) Consor- tium project for ...

Pinnacle

2004-04-23T23:59:59.000Z

40

Quantum 3D superstrings  

Science Journals Connector (OSTI)

The classical Green-Schwarz superstring action, with N=1 or N=2 spacetime supersymmetry, exists for spacetime dimensions D=3, 4, 6, 10, but quantization in the light-cone gauge breaks Lorentz invariance unless either D=10, which leads to critical superstring theory, or D=3. We give details of results presented previously for the bosonic and N=1 closed 3D (super)strings and extend them to the N=2 3D superstring. In all cases, the spectrum is parity-invariant and contains anyons of irrational spin.

Luca Mezincescu and Paul K. Townsend

2011-11-08T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Introduction to 3D Printing  

Science Journals Connector (OSTI)

Three-dimensional (3D) printing has evolved dramatically in the last few years. 3D printers have become plentiful and affordable enough ... can own one. Indeed, the cost of 3D printers (as little as $200 USD) ......

Charles Bell

2014-01-01T23:59:59.000Z

42

Comparison of 3D, Assist-as-Needed Robotic Arm/Hand Movement Training Provided with Pneu-WREX to Conventional Table Top Therapy Following Chronic Stroke  

E-Print Network [OSTI]

0b013e31826bce79. Comparison of 3D, Assist-as-Needed Roboticuser can move her hand in 3D space, and use the grip sensorrequire three dimensional (3D) movement against gravity and

Reinkensmeyer, David J.; Wolbrecht, Eric T.; Chan, Vicky; Chou, Cathy; Cramer, Steven C.; Bobrow, James E.

2012-01-01T23:59:59.000Z

43

3d X 3d X SrTiO3Ti 2p 3d  

E-Print Network [OSTI]

XX 3d X 3d X X XX X XX SrTiO3Ti 2p 3d SrTiO3Ti 2p 3d 2p 2p SrTiO3 ts) 2p3/2 (t2g) 2p3/2 (e ) 2p1/2 (eg)2p SrTiO3 3d unit (t2g) (eg) (eg)2p1/2 (t2g)3d (Ti Fe Cu) arb. ( 2g) (Ti, Fe, Cu) y(ansitynten 3d In 3d 468464460456 · Photon Energy (e

Katsumoto, Shingo

44

3D scanning for personal 3D printing: build your own desktop 3D scanner  

Science Journals Connector (OSTI)

3D Printing has entered the mainstream. Multiple low cost desktop 3D printers are currently available from various vendors, and open source projects let hobbyists build their own. This course addresses the problem of creating 3D models for 3D printing. ...

Gabriel Taubin; Daniel Moreno; Douglas Lanman

2014-07-01T23:59:59.000Z

45

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

1 3D Computer Vision and Video Computing 3D Vision3D Vision CSc I6716 Fall 2010 Topic 3 of Part II Stereo Vision Zhigang Zhu, City College of New York zhu@cs.ccny.cuny.edu 3D Computer Vision and Video Computing Stereo VisionStereo Vision Problem Infer 3D structure of a scene from two or more images taken

Zhu, Zhigang

46

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

1 3D Computer Vision and Video Computing 3D Vision3D Vision CSc I6716 Spring 2011 Topic 3 of Part II Stereo Vision p g Zhigang Zhu, City College of New York zhu@cs.ccny.cuny.edu 3D Computer Vision and Video Computing Stereo VisionStereo Vision Problem Infer 3D structure of a scene from two or more images

Zhu, Zhigang

47

3D modeling with silhouettes  

E-Print Network [OSTI]

With the increasing power of computers and the spread of dedicated graphics hardware, 3D content has become ubiquitous in every field, from medicine to video games. However, designing 3D models remains a time-consuming and ...

Rivers, Alec (Alec Rothmyer)

2010-01-01T23:59:59.000Z

48

Slicing a 3D Model  

Science Journals Connector (OSTI)

This chapter and the next are the core of this book’s explanation of the 3D printing process. 3D printers cannot use a computer...slicing.

Joan Horvath

2014-01-01T23:59:59.000Z

49

The Desktop 3D Printer  

Science Journals Connector (OSTI)

In Chapter 1 we saw that 3D printing has a 30-year history spanning a ... technical, legal, and societal shifts in the 3D-printing market since the major patents in the...

Joan Horvath

2014-01-01T23:59:59.000Z

50

3 D interactive pictorial maps  

E-Print Network [OSTI]

of simplififcation and exaggeration.. . . . . . . . . . . . . . 21 8 3 D polygonal text in Maya. . . . . . . . . . . . . . . . . . . . . . . . 22 9 Final 3 D model of Italy with text. . . . . . . . . . . . . . . . . . . . 23 10 Top view of 3 D model of France... the files in a format that is suitable for web viewing. 15 CHAPTER IV METHODOLOGY There are three major steps to making an interactive pictorial map. The fifrst step is to build the 3 D model using a modeling software, Maya. The second step is to apply...

Naz, Asma

2005-02-17T23:59:59.000Z

51

3D Printed Bionic Ears  

Science Journals Connector (OSTI)

(bottom) a 3D printer used for the printing process. ... Figure 2A shows the 3D printed bionic ear immediately after printing. ... A student version of the Autodesk 3ds Max software package was used to modify and render the 3D images. ...

Manu S. Mannoor; Ziwen Jiang; Teena James; Yong Lin Kong; Karen A. Malatesta; Winston O. Soboyejo; Naveen Verma; David H. Gracias; Michael C. McAlpine

2013-05-01T23:59:59.000Z

52

3D Tissue Scaffolds BIOMATERIALS  

E-Print Network [OSTI]

3D Tissue Scaffolds BIOMATERIALS Our goal is to develop measurement tools and reference materials for assessing the impact of the physical and chemical properties of 3D tissue scaffolds on cellular response. These tools will be used to explore the relationship between cellular response on 2D surfaces to that in 3D

53

Physical Consequences of a Momenta-Transfering Particle Theory of Induced Gravity and New Measurements Indicating Variation from Inverse Square Law at Length Scale of .1 mm: Statistical Time Properties of Gravitational Interaction and Analysis Thereof  

E-Print Network [OSTI]

This work presents physical consequences of our theory of induced gravity (Ref.1) regarding: 1) the requirement to consider shape and materials properties when calculating graviton cross section collision area; 2) use of Special Relativity; 3) implications regarding the shape of cosmos; 4) comparison to explanations using General Relativity; 5) properties of black holes; 6) relationship to the strong force and the theorized Higgs boson; 7) the possible origin of magnetic attraction; 8) new measurements showing variation from gravitational inverse square behavior at length scales of 0.1 mm and relationship to the Cosmological constant, and proof of the statistical time properties of the gravitational interaction.

Gary Christopher Vezzoli

2001-04-04T23:59:59.000Z

54

3D World Building System  

SciTech Connect (OSTI)

This video provides an overview of the Sandia National Laboratories developed 3-D World Model Building capability that provides users with an immersive, texture rich 3-D model of their environment in minutes using a laptop and color and depth camera.

None

2013-10-30T23:59:59.000Z

55

3D World Building System  

ScienceCinema (OSTI)

This video provides an overview of the Sandia National Laboratories developed 3-D World Model Building capability that provides users with an immersive, texture rich 3-D model of their environment in minutes using a laptop and color and depth camera.

None

2014-02-26T23:59:59.000Z

56

3D Magnetotelluric characterization of the COSO GeothermalField  

SciTech Connect (OSTI)

Knowledge of the subsurface electrical resistivity/conductivity can contribute to a better understanding of complex hydrothermal systems, typified by Coso geothermal field, through mapping the geometry (bounds and controlling structures) over existing production. Three-dimensional magnetotelluric (MT) inversion is now an emerging technology for characterizing the resistivity structures of complex geothermal systems. The method appears to hold great promise, but histories exploiting truly 3D inversion that demonstrate the advantages that can be gained by acquiring and analyzing MT data in three dimensions are still few in number. This project will address said issue, by applying 3D MT forward modeling and inversion to a MT data set acquired over the Coso geothermal field. The goal of the project is to provide the capability to image large geothermal reservoirs in a single self-consistent model. Initial analysis of the Coso MT data has been carried out using 2D MT imaging technology to construct an initial 3D resistivity model from a series of 2D resistivity images obtained using the inline electric field measurements (Zxy impedance elements) along different measurement transects. This model will be subsequently refined through a 3D inversion process. The initial 3D resistivity model clearly shows the controlling geological structures possibly influencing well production at Coso. The field data however, also show clear three dimensionality below 1 Hz, demonstrating the limitations of 2D resistivity imaging. The 3D MT predicted data arising from this starting model show good correspondence in dominant components of the impedance tensor (Zxy and Zyx) above 1Hz. Below 1 Hz there is significant differences between the field data and the 2D model data.

Newman, Gregory A.; Hoversten, Michael; Gasperikova, Erika; Wannamaker, Philip E.

2005-01-01T23:59:59.000Z

57

Imaging atoms in 3-D  

ScienceCinema (OSTI)

Berkeley Lab's Peter Ercius discusses "Imaging atoms in 3-D" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas

Ercius, Peter

2014-06-27T23:59:59.000Z

58

3D nonparametric neural identification  

Science Journals Connector (OSTI)

This paper presents the state identification study of 3D partial differential equations (PDEs) using the differential neural networks (DNNs) approximation. There are so many physical situations in applied mathematics and engineering that can be described ...

Rita Q. Fuentes; Isaac Chairez; Alexander Poznyak; Tatyana Poznyak

2012-01-01T23:59:59.000Z

59

3D reconstruction of tensors and vectors  

SciTech Connect (OSTI)

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

60

3D Polygon Rendering Pipeline Michael Kazhdan  

E-Print Network [OSTI]

3D Polygon Rendering Pipeline Michael Kazhdan (600.357 / 600.457) HB Ch. 12 FvDFH Ch. 6, 18.3 #12;3D Polygon Rendering · Many applications use rendering of 3D polygons with direct illumination #12;3D Polygon Rendering · Many applications use rendering of 3D polygons with direct illumination Half-Life 2

Kazhdan, Michael

Note: This page contains sample records for the topic "3d gravity inversion" 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

3D Polygon Rendering Pipeline Michael Kazhdan  

E-Print Network [OSTI]

3D Polygon Rendering Pipeline Michael Kazhdan (600.357 / 600.457) HB Ch. 12 FvDFH Ch. 6, 18.3 #12;3D Polygon Rendering · Many applications use rendering of 3D polygons with direct illumination #12;3D Polygon Rendering · Many applications use rendering of 3D polygons with direct illumination Crysis 3

Kazhdan, Michael

62

Voxel octree intersection based 3D scanning.  

E-Print Network [OSTI]

??Recent developments in the field of three dimensional (3D) printing have resulted in widely available low-cost 3D printers. These printers require 3D models, which are… (more)

Bennett, Joel

2014-01-01T23:59:59.000Z

63

Characterization of 3D Photovoltaics  

E-Print Network [OSTI]

Characterization of 3D Photovoltaics SEMICONDUCTORS Our goal is to provide industry with test structures and models of next-generation photovoltaics, with an initial focus on cadmium telluride (Cd (nanostructured) photovoltaic devices. Objective Impact and Customers · The U.S. Photovoltaic Industry Roadmap

64

3D MAGNETOTELLURIC CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD | Open  

Open Energy Info (EERE)

CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: 3D Magnetotelluric characterization of the COSO Geothermal Field Details Activities (0) Areas (0) Regions (0) Abstract: Knowledge of the subsurface electrical resistivity/conductivity can contribute to a better understanding of complex hydrothermal systems, typified by Coso geothermal field, through mapping the geometry (bounds and controlling structures) over existing production. Three-dimensional magnetotelluric (MT) inversion is now an emerging technology for characterizing the resistivity structures of complex geothermal systems. The method appears to hold great promise, but histories exploiting truly 3D inversion that demonstrate the advantages that can be gained by acquiring

65

Application of magnetic amplitude inversion in exploration for natural gas in volcanics Yaoguo Li, Center for Gravity, Electrical, and Magnetic Studies, Colorado School of Mines  

E-Print Network [OSTI]

Application of magnetic amplitude inversion in exploration for natural gas in volcanics Yaoguo Li basins and have strong remanent magnetization. The appli- cation arises in exploration of natural gas identify the volcanic units at large depths. INTRODUCTION Exploration for natural gas hosted in volcanics

66

3D Printed Shelby Cobra  

Broader source: Energy.gov [DOE]

ORNL's newly printed 3D car will be showcased at the 2015 NAIAS in Detroit. This "laboratory on wheels" uses the Shelby Cobra design, celebrating the 50th anniversary of this model and honoring the first vehicle to be voted a national monument. The Shelby will allow research and development of integrated components to be tested and enhanced in real time, improving the use of sustainable, digital manufacturing solutions in the automotive industry.

67

3D Imaging Technology Conference & Applications Workshop  

E-Print Network [OSTI]

2nd London 3D Imaging Technology Conference & Applications Workshop 3D scanning and vertical, Greece, bilalis@dpem.tuc.gr Abstract. The new 3D scanning technology had changed the way and opened new from some 3D scanning approaches, which were applied for the first time in the southern part of Europe

Aristomenis, Antoniadis

68

3D N = 4 Gauge Theory Compactication  

E-Print Network [OSTI]

Outline 3D N = 4 Gauge Theory Compactication Twistors 3D N = 4 Supersymmetric Gauge Theories and Hyperk¨ahler Metrics Richard Eager UCSB Friday, October 17th, 2008, 4:00 p.m. Richard Eager UCSB 3D N = 4 Supersymmetric Gauge Theories and Hyperk¨ahler M #12;Outline 3D N = 4 Gauge Theory Compactication Twistors

Bigelow, Stephen

69

INVERSE-SQUARE LAW TESTS 1 TESTS OF THE GRAVITATIONAL  

E-Print Network [OSTI]

INVERSE-SQUARE LAW TESTS 1 TESTS OF THE GRAVITATIONAL INVERSE-SQUARE LAW E.G.Adelberger, B-1560 KEYWORDS: gravitation, experimental tests of inverse-square law, quantum gravity, extra dimensions ABSTRACT: We review recent experimental tests of the gravitational inverse-square law, and the wide variety

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

70

Fast 3D keypoints detector and descriptor for view-based 3D objects recognition  

E-Print Network [OSTI]

Fast 3D keypoints detector and descriptor for view-based 3D objects recognition Ayet Shaiek1 Abstract. In this paper, we propose a new 3D object recognition method that employs a set of 3D keypoints extracted from point cloud representation of 3D views. The method makes use of the 2D organization of range

Paris-Sud XI, Université de

71

A Brief History of 3D Printing  

Science Journals Connector (OSTI)

Enormous hype surrounds 3D printing, with predictions that it will spur a ... manufacturing facility. There are many areas where 3D printing really is creating significant change, particularly in...

Joan Horvath

2014-01-01T23:59:59.000Z

72

Part removal of 3D printed parts  

E-Print Network [OSTI]

An experimental study was performed to understand the correlation between printing parameters in the FDM 3D printing process, and the force required to remove a part from the build platform of a 3D printing using a patent ...

Peña Doll, Mateo

2014-01-01T23:59:59.000Z

73

ArrangePak-3D User's Manual  

E-Print Network [OSTI]

ArrangePak-3D User's Manual File Planes Options Help Quit Planes: 5 ­120.2732,+28.2707 poweredbyLEDA ArrangePak­3D #12; #12; ArrangePak-3D User's Manual Manipulating Arrangements of Planes in Three- chantability or #12;tness for a particular purpose. version 1.0x License: The ArrangePak-3D source code

Wismath, Stephen

74

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

75

3D Printing Prof. Hank Dietz  

E-Print Network [OSTI]

3D Printing Prof. Hank Dietz TCMS, March 14, 2014 University of Kentucky Electrical & Computer #12;3D With Glue Layers of paper: printed with glue & cut Layers of powder: printed with glue Can also be printed in full color #12;3D Extrusion (RepRaps) FDM: Fused Deposition Modeling FFF: Fused

Dietz, Henry G. "Hank"

76

3D Sparse Representations Lanusse F. a  

E-Print Network [OSTI]

3D Sparse Representations Lanusse F. a Starck J.-L. a Woiselle A. c Fadili M.J. b a Laboratoire AIM Securite, 95101 Argenteuil CEDEX, France. Abstract In this chapter we review a variety of 3D sparse representations developed in recent years and adapted to different kinds of 3D signals. In particular, we describe

Starck, Jean-Luc

77

3D Imaging Of Wet Granular Matter  

E-Print Network [OSTI]

3D Imaging Of Wet Granular Matter Leonard Goff Advisor: Dr. Wolfgang Losert With Application to Penetrometer Insertion #12;3D Imaging Of Wet Granular Matter Leonard Goff, Advisor: Dr. Wolfgang Losert CoffeeSand Gravel Oops! #12;3D Imaging Of Wet Granular Matter Leonard Goff, Advisor: Dr. Wolfgang Losert

Anlage, Steven

78

3D Postprozessor Diplomarbeit von Samuel Gerber  

E-Print Network [OSTI]

3D Postprozessor Diplomarbeit von Samuel Gerber Fachhochschule Aargau FHA University of Applied¨angsschnitt . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3.4 Querschnit . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.5 3D-Bilder . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 3D Ansicht . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 Bericht

Gerber, Samuel

79

Supersymmetric Gauge Theories in 3d  

E-Print Network [OSTI]

Supersymmetric Gauge Theories in 3d Nathan Seiberg IAS #12;The Search for Fundamental Physics Dine. 8 #12;Supersymmetric Gauge Theories in 3d Nathan Seiberg IAS Based on work with Aharony, Intriligator, Razamat, and Willett, to appear #12;3d SUSY Gauge Theories · New lessons about dynamics

California at Santa Cruz, University of

80

3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field,  

Open Energy Info (EERE)

3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, 3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, Indonesia Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: 3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, Indonesia Details Activities (0) Areas (0) Regions (0) Abstract: Three-dimensional (3-D) interpretation was carried out for the magnetotelluric (MT) data obtained in a geothermal area in Indonesia. The inversion scheme was based on the linearized leastsquares method with smoothness regularization. In addition to the subsurface resistivity structure, static shifts were also included as unknown parameters in the inversion. Forward modeling was by the finite difference scheme. The sensitivity matrix was computed once for a homogeneous half space and used

Note: This page contains sample records for the topic "3d gravity inversion" 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

Gravity data as a tool for landfill study  

Science Journals Connector (OSTI)

This paper shows the potential of gravity data to map a buried landfill bottom topography. To this end, a ... gravity inversion method is presented for estimating the landfill’s bottom depths at discrete points a...

João B. C. Silva; Wlamir A. Teixeira; Valéria C. F. Barbosa

2009-04-01T23:59:59.000Z

82

2D 3D * iklee)@yonsei.ac.kr  

E-Print Network [OSTI]

1 2012 2D 3D * 0 , 1 , 2 0,2 1 ( 0 skrcjstk, 2 iklee)@yonsei.ac.kr 1 rinthel Science, Yonsei University. 1 Dept. of Information Media, The University of Suwon. 2D 3D . 2D - , 3D (Disparity) 3D . . 1. 3D 3D . 3D 3D [1

Lee, In-Kwon

83

Hollywood 3D: Recognizing Actions in 3D Natural Scenes Simon Hadfield Richard Bowden  

E-Print Network [OSTI]

Hollywood 3D: Recognizing Actions in 3D Natural Scenes Simon Hadfield Richard Bowden Centre-class variations. It is made even more challenging when complex 3D actions are projected down to the image plane, losing a great deal of information. The recent emergence of 3D data, both in broadcast content

Bowden, Richard

84

3D Imaging Symposium, Friday 11:00 3D APPROACHES IN PALEOANTHROPOLOGY USING GEOMETRIC MOR-  

E-Print Network [OSTI]

3D Imaging Symposium, Friday 11:00 3D APPROACHES IN PALEOANTHROPOLOGY USING GEOMETRIC MOR, Eugene, OR; ROSENBERGER, Alfred, Brooklyn College/CUNY, Brooklyn, NY The emergence of 3D GM (geometric- ble to easily collect data in a true 3D sense, such as sets of homologous landmarks or com- plete

Delson, Eric

85

Gravity, Dimension, Equilibrium, & Thermodynamics  

E-Print Network [OSTI]

Is it actually possible to interpret gravitation as space's property in a pure classical way. Then, we note that extended self-gravitating system equilibrium depends directly on the number of dimension of the space in which it evolves. Given those precisions, we review the principal thermodynamical knowledge in the context of classical gravity with arbitrary dimension of space. Stability analyses for bounded 3D systems, namely the Antonov instability paradigm, are then rapproched to some amazing properties of globular clusters and galaxies.

Jerome Perez

2006-03-30T23:59:59.000Z

86

3D and 4D magnetic susceptibility tomography based on complex MR images  

DOE Patents [OSTI]

Magnetic susceptibility is the physical property for T2*-weighted magnetic resonance imaging (T2*MRI). The invention relates to methods for reconstructing an internal distribution (3D map) of magnetic susceptibility values, .chi. (x,y,z), of an object, from 3D T2*MRI phase images, by using Computed Inverse Magnetic Resonance Imaging (CIMRI) tomography. The CIMRI technique solves the inverse problem of the 3D convolution by executing a 3D Total Variation (TV) regularized iterative convolution scheme, using a split Bregman iteration algorithm. The reconstruction of .chi. (x,y,z) can be designed for low-pass, band-pass, and high-pass features by using a convolution kernel that is modified from the standard dipole kernel. Multiple reconstructions can be implemented in parallel, and averaging the reconstructions can suppress noise. 4D dynamic magnetic susceptibility tomography can be implemented by reconstructing a 3D susceptibility volume from a 3D phase volume by performing 3D CIMRI magnetic susceptibility tomography at each snapshot time.

Chen, Zikuan; Calhoun, Vince D

2014-11-11T23:59:59.000Z

87

3D Multiprocessor with 3D NoC Architecture Based on Tezzaron Technology  

E-Print Network [OSTI]

1 3D Multiprocessor with 3D NoC Architecture Based on Tezzaron Technology M.H Jabbar1,2 , D. Houzet the architecture and implementation of 3D multiprocessor with 3D NoC. The 2 tiers design is based on 16 processors simulation, the purpose of this work is to accurately measure NoC performances in real 3D chip when running

Paris-Sud XI, Université de

88

Gravity modeling of Cenozoic extensional basins, offshore Vietnam  

E-Print Network [OSTI]

. . . 78 . . . 81 LIST OF FIGURES Figure 1 Southeast Asian study area location map 2 Major tectonic features of Southeast Asia 3 Mekong basin sediment isopach map . 4 Mekong basin generalized stratigraphy . Page . . . . 1 0 5 Mekong basin... gravity model 2 17 Mekong 2D forward gravity model 3 18 Mekong 2D forward gravity model 4 19 Mekong 2D forward gravity model 5 32 34 . . . 35 . . . 36 Page 20 Schematic 3D forward gravity model of Yinggehai basin sediment . . . 21 3D forward...

Mauri, Steven Joseph

2012-06-07T23:59:59.000Z

89

3D Site Response using NLSSI  

Broader source: Energy.gov [DOE]

3D Site Response using NLSSI Justin Coleman, P.E. Bob Spears Nuclear Science and Technology Idaho National Laboratory October 22, 2014

90

Development and anlysis of fast, approximate 3D Algorithms for interpretation of multi-component induction logging data  

SciTech Connect (OSTI)

This report addresses the effects of electrical anisotropy on the 3D inversion of single-well induction logging data when anisotropy is not considered. Of concern are possible artifacts that may lead to an incorrect interpretation of the formation about the borehole. Comparison is made of 3D isotropic inversion on a suite of model data, with and without anisotropy, consisting of an infinite layer and layer terminated at the borehole. In both cases, the layer dip (or well deviation) is varied. Inversion of the anisotropic data result in an overestimate of the layer conductivity, and the lateral extent of the layer about the borehole.

David L. Alumbaugh

2006-07-03T23:59:59.000Z

91

API Gravity  

Science Journals Connector (OSTI)

n Measure of specific gravity of petroleum and petroleum products, defined by the following equation: $$\\eqalign{{\\rm{API\\,\\,Gravity,\\,\\,degrees }}...

Jan W. Gooch

2011-01-01T23:59:59.000Z

92

LBDP: localized boundary detection and parametrization for 3-D sensor networks  

Science Journals Connector (OSTI)

Many applications of wireless sensor networks involve monitoring a time-variant event (e.g., radiation pollution in the air). In such applications, fast boundary detection is a crucial function, as it allows us to track the event variation in a timely ... Keywords: 3-D wireless sensor networks, boundary detection, convexity test, inversion, localized algorithm, surface parametrization

Feng Li, Chi Zhang, Jun Luo, Shi-Qing Xin, Ying He

2014-04-01T23:59:59.000Z

93

ELECTRICAL IMPEDANCE MAMMOGRAPHY Forward problem for homogeneous and 3-D sphere  

E-Print Network [OSTI]

ELECTRICAL IMPEDANCE MAMMOGRAPHY Forward problem for homogeneous and 3-D sphere Jakub Vel Prague, October 15, 2014 J. Vel´imsk´y (CUP) Electrical Impedance Mammography Prague, 15.10.2014 1 / 26 and SH-FE discretization Remarks on the inverse problem Current status J. Vel´imsk´y (CUP) Electrical

Cerveny, Vlastislav

94

3-D seismology in the Arabian Gulf  

SciTech Connect (OSTI)

Since 1977 when Aramco and GSI (Geophysical Services International) pioneered the first 3-D seismic survey in the Arabian Gulf, under the guidance of Aramco`s Chief Geophysicist John Hoke, 3-D seismology has been effectively used to map many complex subsurface geological phenomena. By the mid-1990s extensive 3-D surveys were acquired in Abu Dhabi, Oman, Qatar and Saudi Arabia. Also in the mid-1990`s Bahrain, Kuwait and Dubai were preparing to record surveys over their fields. On the structural side 3-D has refined seismic maps, focused faults and fractures systems, as well as outlined the distribution of facies, porosity and fluid saturation. In field development, 3D has not only reduced drilling costs significantly, but has also improved the understanding of fluid behavior in the reservoir. In Oman, Petroleum Development Oman (PDO) has now acquired the first Gulf 4-D seismic survey (time-lapse 3D survey) over the Yibal Field. The 4-D survey will allow PDO to directly monitor water encroachment in the highly-faulted Cretaceous Shu`aiba reservoir. In exploration, 3-D seismology has resolved complex prospects with structural and stratigraphic complications and reduced the risk in the selection of drilling locations. The many case studies from Saudi Arabia, Oman, Qatar and the United Arab Emirates, which are reviewed in this paper, attest to the effectiveness of 3D seismology in exploration and producing, in clastics and carbonates reservoirs, and in the Mesozoic and Paleozoic.

Al-Husseini, M. [Gulf PetroLink, Manama (Bahrain); Chimblo, R. [Saudi Aramco, Dhahran (Saudi Arabia)

1995-08-01T23:59:59.000Z

95

3, 35433588, 2003 3-D air pollution  

E-Print Network [OSTI]

ACPD 3, 3543­3588, 2003 3-D air pollution modelling L. M. Frohn et al. Title Page Abstract hemispheric nested air pollution model L. M. Frohn, J. H. Christensen, J. Brandt, C. Geels, and K. M. Hansen 2003 Correspondence to: L. M. Frohn (lmf@dmu.dk) 3543 #12;ACPD 3, 3543­3588, 2003 3-D air pollution

Boyer, Edmond

96

BEAMS3D Neutral Beam Injection Model  

SciTech Connect (OSTI)

With the advent of applied 3D fi elds in Tokamaks and modern high performance stellarators, a need has arisen to address non-axisymmetric effects on neutral beam heating and fueling. We report on the development of a fully 3D neutral beam injection (NBI) model, BEAMS3D, which addresses this need by coupling 3D equilibria to a guiding center code capable of modeling neutral and charged particle trajectories across the separatrix and into the plasma core. Ionization, neutralization, charge-exchange, viscous velocity reduction, and pitch angle scattering are modeled with the ADAS atomic physics database [1]. Benchmark calculations are presented to validate the collisionless particle orbits, neutral beam injection model, frictional drag, and pitch angle scattering effects. A calculation of neutral beam heating in the NCSX device is performed, highlighting the capability of the code to handle 3D magnetic fields.

Lazerson, Samuel

2014-04-14T23:59:59.000Z

97

3D modellering og pathfinding i Java; 3D Modeling and Pathfinding in Java.  

E-Print Network [OSTI]

??English: This project explores the performance of Java3D through a large 3D?model and the possibility of running this model with a pathfinding algorithm from an… (more)

Thorlund, Steffen

2009-01-01T23:59:59.000Z

98

3D view with pst-vue3d Manuel Luque (mluque5130@aol.com)  

E-Print Network [OSTI]

3D view with pst-vue3d Manuel Luque (mluque5130@aol.com) in cooperation with Herbert Vo� (voss@perce.de) 13th August 2004 1 Presentation The 3D representation of an object or a landscape is one of the most (cube, sphere etc. . . ) and many other things. I want to signal that · Regarding 3D representation, one

Mintmire, John W.

99

Inverted gravity, not inverted shape impairs biological motion perception  

E-Print Network [OSTI]

Inverted gravity, not inverted shape impairs biological motion perception Nikolaus Trojetroje. Scrambling should therefore impair perception even more than inversion. Upright and inverted scrambled motion). Is the cause of the inversion effect inverted gravity? If this is the case upright scrambled motion should

Troje, Nikolaus

100

3D2D3D photonic crystal heterostructures fabricated by direct laser writing  

E-Print Network [OSTI]

3D­2D­3D photonic crystal heterostructures fabricated by direct laser writing M. Deubel and M fabricate photoresist templates for 3D­2D­3D photonic crystal heterostruc- tures for what we believe for the microfabrication and testing of broadband, 3D air­waveguide microcir- cuitry in photonic bandgap materials. © 2006

John, Sajeev

Note: This page contains sample records for the topic "3d gravity inversion" 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

3D packaging for integrated circuit systems  

SciTech Connect (OSTI)

A goal was set for high density, high performance microelectronics pursued through a dense 3D packing of integrated circuits. A {open_quotes}tool set{close_quotes} of assembly processes have been developed that enable 3D system designs: 3D thermal analysis, silicon electrical through vias, IC thinning, mounting wells in silicon, adhesives for silicon stacking, pretesting of IC chips before commitment to stacks, and bond pad bumping. Validation of these process developments occurred through both Sandia prototypes and subsequent commercial examples.

Chu, D.; Palmer, D.W. [eds.

1996-11-01T23:59:59.000Z

102

3-D Density Model Of Mt Etna Volcano (Southern Italy) | Open Energy  

Open Energy Info (EERE)

3-D Density Model Of Mt Etna Volcano (Southern Italy) 3-D Density Model Of Mt Etna Volcano (Southern Italy) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3-D Density Model Of Mt Etna Volcano (Southern Italy) Details Activities (0) Areas (0) Regions (0) Abstract: A detailed density model of Mt. Etna and its surrounding areas has been evaluated using a 3-D inversion of the gravimetric data acquired in the 1980's. Several high-density and low-density bodies are found, penetrating from shallow depths as far down as 12 km bsl. A positive correlation (in terms of location, extent, density, and velocity) is established between several anomalies of the density model and features identified in previously published seismic tomographies. A prominent high-density body extending down to 7 km bsl is recognized in the southern

103

A 3D Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The  

Open Energy Info (EERE)

Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The Eruption In 1986 As Estimated From Repeated Airborne Magnetic Surveys Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A 3D Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The Eruption In 1986 As Estimated From Repeated Airborne Magnetic Surveys Details Activities (0) Areas (0) Regions (0) Abstract: A 3D magnetic inversion method using a conjugate gradient method (CG method) was developed for constructing 3D magnetization models of a volcanic edifice and applied to aeromagnetic anomalies of Izu-Oshima Volcano surveyed in 1986 and in 1997. The calculated results of the 1986 data show that the volcanic edifice of Izu-Oshima Volcano has a mean magnetization intensity ranging from 10.4 to 12.1 A/m. The derived 3D

104

3D MHD Modeling of the Galaxy  

Science Journals Connector (OSTI)

We show the results of our 3D MHD simulations of the flow of the Galactic ... synthetic l - v and v - b diagrams for an imaginary observer inside our modeled...

G. C. Gómez; D. P. Cox

2005-01-01T23:59:59.000Z

105

Printed 3D Multi-View Images  

Science Journals Connector (OSTI)

The technique to produce full-parallax 3D multi-view still pictures is described. The matrix of source views (from 6x6 to 15x15 views) is built from computer-generated images or...

Kim, Sung-Sik; Son, Kwang-Hun; Saveljev, V V; Son, Jung-Young

2001-01-01T23:59:59.000Z

106

Internet video streaming using 3-D SPIHT  

E-Print Network [OSTI]

several years. Video streaming involves video compression, protocols selection for streaming media, client/receiver buffer management and packet loss recovery. This thesis documents a new Internet video streaming system based on the state-of-the-art 3-D...

Jiang, Jianhong

2012-06-07T23:59:59.000Z

107

3D face recognition with wireless transportation  

E-Print Network [OSTI]

In this dissertation, we focus on two related parts of a 3D face recognition system with wireless transportation. In the ?rst part, the core components of the system, namely, the feature extraction and classi?cation component, are introduced...

Zou, Le

2009-05-15T23:59:59.000Z

108

Three dimensional (3D) optical information processing  

E-Print Network [OSTI]

Light exhibits dramatically different properties when it propagates in or interacts with 3D structured media. Comparing to 2D optical elements where the light interacts with a sequence of surfaces separated by free space, ...

Tian, Kehan

2006-01-01T23:59:59.000Z

109

3D Spectroscopy and the Virtual Observatory  

E-Print Network [OSTI]

Integral field, or 3D, spectroscopy is the technique of obtaining spectral information over a two-dimensional, hopefully contiguous, field of view. While there is some form of astronomical 3D spectroscopy at all wavelengths, there has been a rapid increase in interest in optical and near-infrared 3D spectroscopy. This has resulted in the deployment of a large variety of integral-field spectrographs on most of the large optical/infrared telescopes. The amount of IFU data available in observatory archives is large and growing rapidly. The complications of treating IFU data as both imaging and spectroscopy make it a special challenge for the virtual observatory. This article describes the various techniques of optical and near-infrared spectroscopy and some of the general needs and issues related to the handling of 3D data by the virtual observatory.

Bryan W. Miller

2007-08-15T23:59:59.000Z

110

3D TORUS V1.0  

Energy Science and Technology Software Center (OSTI)

002440MLTPL00 3D Torus Routing Engine Module for OFA OpenSM v. 1.0  http://www.openfabrics.org/git?p=sashak/management.git;a=sum 

111

3D Self-Portraits Etienne Vouga2  

E-Print Network [OSTI]

scanning pose change output reconstruction textured reconstruction large variety of examples3D print Figure for applications such as online avatars or 3D printing (the miniature shown here was printed using a ZPrinter 650 and accurate cap- ture system for 3D self-portraits using a single 3D sensor. Figure 2: 3D printed miniatures

O'Brien, James F.

112

3D Engineered Models for Construction Support & Available Tools  

E-Print Network [OSTI]

3D Engineered Models for Construction Support & Available Tools #12;3D Engineered Models for Construction · New web page www.fhwa.dot.gov/3d (search "fhwa 3D") ­ Specs, Standards, Details, Tech Briefs ­ Provides initial response within 24 hours of inquiry National Website and TSSC 2 #12;3D Engineered Models

113

3D Keypoints Detection for Objects Recognition Ayet Shaiek1  

E-Print Network [OSTI]

3D Keypoints Detection for Objects Recognition Ayet Shaiek1 , and Fabien Moutarde1 1 Robotics a new 3D object recognition method that employs a set of 3D local features extracted from point cloud representation of 3D views. The method makes use of the 2D organization of range data produced by 3D sensor

Paris-Sud XI, Université de

114

Spiso-3D operation manual (US Patent 8,077,945 B2) Section 1. Introduction : Spiso-3D is an automated software calculating optical 3D  

E-Print Network [OSTI]

1 Spiso-3D operation manual (US Patent 8,077,945 B2) Section 1. Introduction : Spiso-3D is an automated software calculating optical 3D images of neurons mathematically to analyze dendrites and spines (= post synapses). Spiso-3D software was developed by Kawato's laboratory (University of Tokyo

Kawato, Suguru

115

Superplastic forming using NIKE3D  

SciTech Connect (OSTI)

The superplastic forming process requires careful control of strain rates in order to avoid strain localizations. A load scheduler was developed and implemented into the nonlinear finite element code NIKE3D to provide strain rate control during forming simulation and process schedule output. Often the sheets being formed in SPF are very thin such that less expensive membrane elements can be used as opposed to shell elements. A large strain membrane element was implemented into NIKE3D to assist in SPF process modeling.

Puso, M.

1996-12-04T23:59:59.000Z

116

3D printing of multifunctional nanocomposites  

Science Journals Connector (OSTI)

Summary Additive manufacturing (aka, 3D printing) holds strong potential for the formation of a new class of multifunctional nanocomposites. With the ability to print complex 3D objects layer by layer, additive manufacturing with nanomaterials could be leveraged in new ways toward greater control over material properties across part dimensions. Multifunctionality through embedding of nanomaterials can further extend capabilities of nanocomposites to properties such as gradients in thermal and electrical conductivity, photonic emissions tunable for wavelength, and increased strength and reduced weight. Here we discuss the promises offered by nanomaterials-based additive manufacturing as a new paradigm for nanocomposite functionality.

Thomas A. Campbell; Olga S. Ivanova

2013-01-01T23:59:59.000Z

117

3D Modeling Engine Representation Summary Report  

SciTech Connect (OSTI)

Computers have been used for 3D modeling and simulation, but only recently have computational resources been able to give realistic results in a reasonable time frame for large complex models. This summary report addressed the methods, techniques, and resources used to develop a 3D modeling engine to represent risk analysis simulation for advanced small modular reactor structures and components. The simulations done for this evaluation were focused on external events, specifically tsunami floods, for a hypothetical nuclear power facility on a coastline.

Steven Prescott; Ramprasad Sampath; Curtis Smith; Timothy Yang

2014-09-01T23:59:59.000Z

118

3D-3D registration of free formed objects using shape and texture Fernando C. M. Martins  

E-Print Network [OSTI]

3D-3D registration of free formed objects using shape and texture Fernando C. M. Martins , Hirohisa and orientation of the object in 3D space with respect to an arbitrary fixed reference, given the current measurement and the 3D object model under construction. Measurement integration is the updating of the 3D

Moura, José

119

A 3D Printed Fluidic Device that Enables Integrated Features  

Science Journals Connector (OSTI)

Fluorescence Detector for Capillary Separations Fabricated by 3D Printing ... Fluorescence Detector for Capillary Separations Fabricated by 3D Printing ... Evaluation of 3D Printing and Its Potential Impact on Biotechnology and the Chemical Sciences ...

Kari B. Anderson; Sarah Y. Lockwood; R. Scott Martin; Dana M. Spence

2013-05-21T23:59:59.000Z

120

A 3D Computer Simulation Test of the Leibowitz Hypothesis  

E-Print Network [OSTI]

Barton & Cohn A 3D Computer Simulation Test of the Leibowitzan experiment using a 3D visual simulator in which differentthan smaller ones. The use of 3D visual simulators to assess

Barton, Joseph E.; Cohn, Theodore E

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Physical sectioning in 3D biological microscopy  

E-Print Network [OSTI]

developed in the Brain Networks Laboratory at Texas A&M University, has been used for the purpose of this study. However, the modes of characterizing chatter and its measurement are equally applicable to all current variants of 3D biological microscopy using...

Guntupalli, Jyothi Swaroop

2008-10-10T23:59:59.000Z

122

Physical sectioning in 3D biological microscopy  

E-Print Network [OSTI]

developed in the Brain Networks Laboratory at Texas A&M University, has been used for the purpose of this study. However, the modes of characterizing chatter and its measurement are equally applicable to all current variants of 3D biological microscopy using...

Guntupalli, Jyothi Swaroop

2009-05-15T23:59:59.000Z

123

Printing 3D Catalytic Devices | The Ames Laboratory  

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

Printing 3D Catalytic Devices Ames Laboratory scientist Igor Slowing discusses using 3D printers to create new materials, including catalysts...

124

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

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

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced...

125

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

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

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization DOE...

126

3-D seismic velocity and attenuation structures in the geothermal field  

SciTech Connect (OSTI)

We conducted delay time tomography to determine 3-D seismic velocity structures (Vp, Vs, and Vp/Vs ratio) using micro-seismic events in the geothermal field. The P-and S-wave arrival times of these micro-seismic events have been used as input for the tomographic inversion. Our preliminary seismic velocity results show that the subsurface condition of geothermal field can be fairly delineated the characteristic of reservoir. We then extended our understanding of the subsurface physical properties through determining of attenuation structures (Qp, Qs, and Qs/Qp ratio) using micro-seismic waveform. We combined seismic velocities and attenuation structures to get much better interpretation of the reservoir characteristic. Our preliminary attanuation structures results show reservoir characterization can be more clearly by using the 3-D attenuation model of Qp, Qs, and Qs/Qp ratio combined with 3-D seismic velocity model of Vp, Vs, and Vp/Vs ratio.

Nugraha, Andri Dian [Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)] [Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia); Syahputra, Ahmad [Geophyisical Engineering, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)] [Geophyisical Engineering, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia); Fatkhan,; Sule, Rachmat [Applied Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)] [Applied Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10 Bandung, 40132 (Indonesia)

2013-09-09T23:59:59.000Z

127

3-D Model for Deactivation & Decommissioning  

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

Project & Identifier Project & Identifier Tech Stage: Deployment In-Situ Decommissioning: SR09171 SRS Area Closure Projects: PBS SR-0040 3-D models of the R reactor building and P reactor vessel were delivered to SRS Area Closure Projects Page 1 of 2 Tech Fact Sheet Savannah River Site South Carolina 3-D Model for Deactivation & Decommissioning Challenge Planning for the safe and controlled deactivation and decommissioning (D&D) of highly contaminated nuclear facilities requires that engineers and managers fully understand the work space in which personnel and equipment will operate. It also requires that they effectively communicate safety concerns and work sequences to the personnel who will perform the work. This crucial knowledge is conveyed in

128

Fiber reinforcement during 3D printing  

Science Journals Connector (OSTI)

Abstract Three-dimensional (3D) printing is an attractive rapid prototyping technology for the fabrication of 3D structures by the localized deposition of a reactive binder liquid onto thin powder layers in predominantly technical applications. A practical limitation is often the low green strength of printed samples, which can lead to a collapse of large and fragile structures during removal from the powder bed and the following depowdering procedure. Fibre reinforcement may improve green mechanical properties of printed samples, which was investigated in this study using a range of different short fibres added to a matrix of cellulose-modified gypsum powder. Mechanical testing of printed samples revealed a bending strength increase of 180% and up to 10 times higher work of fracture values compared to non-reinforced printed samples.

Susanne Christ; Martin Schnabel; Elke Vorndran; Jürgen Groll; Uwe Gbureck

2015-01-01T23:59:59.000Z

129

3-D Metals | Open Energy Information  

Open Energy Info (EERE)

Metals Metals Jump to: navigation, search Name 3-D Metals Facility 3-D Metals Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Location Valley City OH Coordinates 41.2481362°, -81.88305616° 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":41.2481362,"lon":-81.88305616,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

130

3D-Printing Spatially Varying BRDFs  

Science Journals Connector (OSTI)

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

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

2013-11-01T23:59:59.000Z

131

3D Imaging with Holographic Tomography  

Science Journals Connector (OSTI)

There are two main types of tomography that enable the 3D internal structures of objects to be reconstructed from scattered data. The commonly known computerized tomography (CT) give good results in the x?ray wavelength range where the filtered back?projection theorem and Radon transform can be used. These techniques rely on the Fourier projection?slice theorem where rays are considered to propagate straight through the object. Another type of tomography called ‘diffraction tomography’ applies in applications in optics and acoustics where diffraction and scattering effects must be taken into account. The latter proves to be a more difficult problem as light no longer travels straight through the sample. Holographic tomography is a popular way of performing diffraction tomography and there has been active experimental research on reconstructing complex refractive index data using this approach recently. However there are two distinct ways of doing tomography: either by rotation of the object or by rotation of the illumination while fixing the detector. The difference between these two setups is intuitive but needs to be quantified. From Fourier optics and information transformation point of view we use 3D transfer function analysis to quantitatively describe how spatial frequencies of the object are mapped to the Fourier domain. We first employ a paraxial treatment by calculating the Fourier transform of the defocused OTF. The shape of the calculated 3D CTF for tomography by scanning the illumination in one direction only takes on a form that we might call a ’peanut ’ compared to the case of object rotation where a diablo is formed the peanut exhibiting significant differences and non?isotropy. In particular there is a line singularity along one transverse direction. Under high numerical aperture conditions the paraxial treatment is not accurate and so we make use of 3D analytical geometry to calculate the behaviour in the non?paraxial case. This time we obtain a similar peanut but without the line singularity.

Colin J. R. Sheppard; Shan Shan Kou

2010-01-01T23:59:59.000Z

132

CAN 3D PRINTING REVOLUTIONIZE GLOBAL MANUFACTURING? A DELPHI STUDY  

E-Print Network [OSTI]

CAN 3D PRINTING REVOLUTIONIZE GLOBAL MANUFACTURING? A DELPHI STUDY ­ Master Thesis Proposal ­ BACKGROUND 3D printing (or additive manufacturing) is not an entirely new phenomenon. First introduced and president of Foxconn, calls it a nice "gimmick" and even Nick Allen, founder of 3D printing company 3D Print

133

3D Printing of Functional and Biological Materials  

E-Print Network [OSTI]

! 3D Printing of Functional and Biological Materials Jennifer A. Lewis Wyss Professor)! Multimaterial 3D printing ! #12;3D antennas! Li ion microbatteries! Lightweight microlattices!Flexible sensors! 3D Printing of Integrated Electronic Devices ! #12;20 nm average , 5 ­ 50 nm

134

3D Model Retrieval based on Adaptive Views Clustering  

E-Print Network [OSTI]

3D Model Retrieval based on Adaptive Views Clustering Tarik Filali Ansary1 , Mohamed Daoudi2 , Jean.daoudi@univ-tours.fr http://www-rech.enic.fr/miire Abstract. In this paper, we propose a method for 3D model indexing based selection of 2D views from a 3D model, and a probabilistic Bayesian method for 3D model retrieval from

Paris-Sud XI, Université de

135

Stress relief: improving structural strength of 3D printable objects  

Science Journals Connector (OSTI)

The use of 3D printing has rapidly expanded in the past couple of years. It is now possible to produce 3D-printed objects with exceptionally high fidelity and precision. However, although the quality of 3D printing has improved, both the time to print ... Keywords: 3D printing, physics-based modeling, structural analysis

Ondrej Stava; Juraj Vanek; Bedrich Benes; Nathan Carr; Radomír M?ch

2012-08-01T23:59:59.000Z

136

3D REGULARIZED VELOCITY FROM 3D DOPPLER RADIAL VELOCITY X. Chen, J.L. Barron, R.E. Mercer  

E-Print Network [OSTI]

3D REGULARIZED VELOCITY FROM 3D DOPPLER RADIAL VELOCITY X. Chen, J.L. Barron, R.E. Mercer Dept, Ontario, M3H 5T4 Paul.Joe@ec.gc.ca ABSTRACT The recent availability of sequences of 3D Doppler radial velocity datasets provides sufficient information to estimate the 3D velocity of Doppler storms. We present

Barron, John

137

Spiso-3D (USA Patent 8,077,945 B2) Section 1. "Spiso-3D" 3  

E-Print Network [OSTI]

1 Spiso-3D (USA Patent 8,077,945 B2) Section 1. "Spiso-3D" 3 BioInfomatics I(x) Taylor, Java 3D . graphic card graphic card . Trial version of Spiso Google down-load Neurolucida 2%Spiso-3D Kawato's laboratory Homepage http://glia.c.u-tokyo.ac.jp #12;2 Section 1, Introduction

Kawato, Suguru

138

3D as a content, 3D as a metaphor. Experiments on distributing and interfacing information about historic artefacts using  

E-Print Network [OSTI]

3D as a content, 3D as a metaphor. Experiments on distributing and interfacing information about MAP, France jyb@gamsau.map.archi.fr idu@gamsau.map.archi.fr Key Words Architectural heritage, 3D The importance we attach to 3D is probably related to the manner we perceive the world. Humans in general seem

Paris-Sud XI, Université de

139

A 3D INTENSITY MODEL BASED ON SPHERICAL HARMONICS FOR AUTOMATIC 3D SEGMENTATION OF HETEROCHROMATIN FOCI  

E-Print Network [OSTI]

A 3D INTENSITY MODEL BASED ON SPHERICAL HARMONICS FOR AUTOMATIC 3D SEGMENTATION OF HETEROCHROMATIN DKFZ Heidelberg and BIOQUANT, Research Group Genome Organization & Function ABSTRACT We introduce a 3D model-based approach for automatic segmentation of 3D fluorescent heterochromatin foci from microscopy

Rippe, Karsten

140

3D GAUSSIAN DESCRIPTOR: A NEW DESCRIPTOR FOR 3D MODELS Mohamed Chaouch and Anne Verroust-Blondet  

E-Print Network [OSTI]

3D GAUSSIAN DESCRIPTOR: A NEW DESCRIPTOR FOR 3D MODELS Mohamed Chaouch and Anne Verroust.chaouch, anne.verroust}@inria.fr ABSTRACT This paper presents a new approach to 3D shape compari- son Shape Benchmark database. Index Terms-- 3D shape retrieval, Gaussian transform 1. INTRODUCTION

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "3d gravity inversion" 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

1998 3D GIS vs Advanced visualisation -Hack & Ozmutlu -LWI Seminar 1 3D-GIS vs Advanced Visualization  

E-Print Network [OSTI]

1998 3D GIS vs Advanced visualisation - Hack & Ozmutlu - LWI Seminar 1 3D-GIS vs Advanced Visualization Hack H.R.G.K. and Ozmutlu S. LWI seminar 1998 Delft, The Netherlands #12;1998 3D GIS vs Advanced visualisation - Hack & Ozmutlu - LWI Seminar 2 3D-GIS vs Advanced Visualization Visualization Strategy At source

Hack, Robert

142

Does 3D increase the enjoyment experience? A comparative experiment on the psychological effects of 3D  

Science Journals Connector (OSTI)

[Figure not available: see fulltext.] Keywords: 3D, Emotional Fatigue, Enjoyment, Experiment, Limited Capacity

Qihao Ji; Jessica Tanca; Sophie Janicke

2013-12-01T23:59:59.000Z

143

Speed-line for 3D animation  

E-Print Network [OSTI]

Committee Members, Carol LaFayette John Keyser Head of Department, Mardelle Shepley December 2005 Major Subject: Visualization Sciences iii ABSTRACT Speed-Line for 3D Animation. (December 2005) Won Chan Song, B.F.A., Ringling School of Art and Design Chair... to thank my committee members, Prof. Carol LaFayette and Dr. John Keyser for their advice and feedback. My gratitude also goes to Hobart Chan for letting me borrow his car model, which saved me a huge amount of time when I was making an animation as a...

Song, Won Chan

2007-04-25T23:59:59.000Z

144

APPLICATION OF 2D AND 3D MODELS FOR TEACHING OF NATURAL SCIENCES  

E-Print Network [OSTI]

by three systems: the use of a 3D scanner, 3D photography and digital video camera, plus 3D SketchUp and 3D

Outerelo. Raimundo

145

Rheology of nearly ideal 3d foams  

E-Print Network [OSTI]

We probe the complex rheology of nearly ideal 3d foam by flowing through a narrow column. The foams we investigate have large bubble size, to minimize the effects of coarsening, and are very dry. Foams of this type cannot be studied via conventional rheometry. The foam flows upward through a vertical rectangular column with a 4:1 cross-sectional aspect ratio, by bubbling gas through a soapy solution at the base of our apparatus. At the column's narrow surfaces are sticky boundaries, which create shear due to the zero velocity boundary condition. As expected, the flow profile between the adjacent slippery broad faces is flat, however the profile between the narrow, sticky faces exhibits a curved velocity profile that is dependent on gas flow rate. We are able to analyze a 2d velocity profile from a 3d bulk system. We employ particle image velocimetry to measure the strain rate, and compute the stress from the pressure drop along the channel, to investigate the local stress-strain relationships in a flowing foam. We find these dry foams to have a Hershel-Bulkley exponent of 0.21, which is significantly lower (more shear thinning) than other results shown in the literature for much wetter foams.

C. D. Jones; K. N. Nordstrom; D. J. Durian

2014-04-10T23:59:59.000Z

146

Magnetotelluric 3-D inversion—a review of two successful workshops on forward and inversion code testing and comparison  

Science Journals Connector (OSTI)

......more modelling reviews followed: one...algorithms are not yet standard tools for MT data...in section and plan view. Table-1...time. In the review paper by Siripunvaraporn...but also non-standard norms and measures...possibly even on a standard laptop. Figure-13...top) and a plan view (bottom......

Marion P. Miensopust; Pilar Queralt; Alan G. Jones; the 3D MT modellers

2013-01-01T23:59:59.000Z

147

Needle segmentation using 3D Hough transform in 3D TRUS guided prostate transperineal therapy  

SciTech Connect (OSTI)

Purpose: Prostate adenocarcinoma is the most common noncutaneous malignancy in American men with over 200 000 new cases diagnosed each year. Prostate interventional therapy, such as cryotherapy and brachytherapy, is an effective treatment for prostate cancer. Its success relies on the correct needle implant position. This paper proposes a robust and efficient needle segmentation method, which acts as an aid to localize the needle in three-dimensional (3D) transrectal ultrasound (TRUS) guided prostate therapy. Methods: The procedure of locating the needle in a 3D TRUS image is a three-step process. First, the original 3D ultrasound image containing a needle is cropped; the cropped image is then converted to a binary format based on its histogram. Second, a 3D Hough transform based needle segmentation method is applied to the 3D binary image in order to locate the needle axis. The position of the needle endpoint is finally determined by an optimal threshold based analysis of the intensity probability distribution. The overall efficiency is improved through implementing a coarse-fine searching strategy. The proposed method was validated in tissue-mimicking agar phantoms, chicken breast phantoms, and 3D TRUS patient images from prostate brachytherapy and cryotherapy procedures by comparison to the manual segmentation. The robustness of the proposed approach was tested by means of varying parameters such as needle insertion angle, needle insertion length, binarization threshold level, and cropping size. Results: The validation results indicate that the proposed Hough transform based method is accurate and robust, with an achieved endpoint localization accuracy of 0.5 mm for agar phantom images, 0.7 mm for chicken breast phantom images, and 1 mm for in vivo patient cryotherapy and brachytherapy images. The mean execution time of needle segmentation algorithm was 2 s for a 3D TRUS image with size of 264 Multiplication-Sign 376 Multiplication-Sign 630 voxels. Conclusions: The proposed needle segmentation algorithm is accurate, robust, and suitable for 3D TRUS guided prostate transperineal therapy.

Qiu Wu [Department of Biomedical Engineering, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Imaging Research Laboratories, Robarts Research Institute, Western University, London, Ontario N6A 5K8 (Canada); Yuchi Ming; Ding Mingyue [Department of Biomedical Engineering, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Tessier, David; Fenster, Aaron [Imaging Research Laboratories, Robarts Research Institute, University of Western Ontario, London, Ontario N6A 5K8 (Canada)

2013-04-15T23:59:59.000Z

148

API gravity  

Science Journals Connector (OSTI)

API gravity [The standard American Petroleum Institute method for specifying the density of crude petroleum. The density in degrees API is 141.5/P – 131.5...] ? (Roh)Öldichte f in API-Graden

2014-08-01T23:59:59.000Z

149

Toward a compact underwater structured light 3-D imaging system  

E-Print Network [OSTI]

A compact underwater 3-D imaging system based on the principles of structured light was created for classroom demonstration and laboratory research purposes. The 3-D scanner design was based on research by the Hackengineer ...

Dawson, Geoffrey E

2013-01-01T23:59:59.000Z

150

Contributions to the 3D city modeling : 3D polyhedral building model reconstruction from aerial images and 3D facade modeling from terrestrial 3D point cloud and images.  

E-Print Network [OSTI]

??The aim of this work is to develop research on 3D building modeling. In particular, the research in aerial-based 3D building reconstruction is a topic… (more)

Hammoudi, Karim

2011-01-01T23:59:59.000Z

151

Stereoscopic Presentations Taking the Difficulty out of 3D  

E-Print Network [OSTI]

1 Stereoscopic Presentations ­ Taking the Difficulty out of 3D Andrew Woods, Centre for Marine of the two projectors. The audience then wear appropriately polarised 3D video projector (CRT/LCD/DMD) video

152

Computational 3D and reflectivity imaging with high photon efficiency  

E-Print Network [OSTI]

Imaging the 3D structure and reflectivity of a scene can be done using photon-counting detectors. Traditional imagers of this type typically require hundreds of detected photons per pixel for accurate 3D and reflectivity ...

Shin, Dongeek

2014-01-01T23:59:59.000Z

153

3-D Earth model more accurately pinpoints explosions  

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

3-D Earth model more accurately pinpoints explosions 3-D Earth model more accurately pinpoints explosions The purpose of this model is to assist the U.S. Air Force and the...

154

Ames Laboratory 3D printing technology research taking shape...  

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

3D printing technology research taking shape Insider Scientists at the U.S. Department of Energy's Ames Laboratory see amazing potential in 3D printing and additive manufacturing,...

155

3D printing and simulation of naturally randomized cellular automata  

Science Journals Connector (OSTI)

3D printing technology usually aims at reproducing objects deterministically ... tools; however, the author has discovered that 3D printing can also generate self-organizing patterns similar ... proposed method w...

Yasusi Kanada

2014-11-01T23:59:59.000Z

156

3D Printing Comes of Age | Department of Energy  

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

3D Printing Comes of Age 3D Printing Comes of Age September 19, 2014 - 5:25pm Addthis The highlight of this year's International Manufacturing Technology Show (IMTS), held earlier...

157

Catalyst Cartography: 3D Super-Resolution Mapping of Catalytic...  

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

Catalyst Cartography: 3D Super-Resolution Mapping of Catalytic Activity Thanks to a groundbreaking new method, scientists have created the first 3D super-resolution maps of...

158

FMI Borehole Geology, Geomechanics and 3D Reservoir Modeling...  

Open Energy Info (EERE)

Geomechanics and 3D Reservoir Modeling Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: FMI Borehole Geology, Geomechanics and 3D Reservoir Modeling...

159

Characterizing tensile loading responses of 3D printed samples  

E-Print Network [OSTI]

An experimental study was performed to characterize the loading response of samples manufactured through 3D printing. Tensile testing was performed on a number of 3D printed samples created through Fused Filament Fabrication ...

Haid, Christopher M

2014-01-01T23:59:59.000Z

160

Ames Lab 101: Real-Time 3D Imaging  

ScienceCinema (OSTI)

Ames Laboratory scientist Song Zhang explains his real-time 3-D imaging technology. The technique can be used to create high-resolution, real-time, precise, 3-D images for use in healthcare, security, and entertainment applications.

Zhang, Song

2012-08-29T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

3-D GRMHD Simulations of Generating Jets  

E-Print Network [OSTI]

We have performed a first fully 3-D GRMHD simulation with Schwarzschild black hole with a free falling corona. The initial simulation results show that a jet is created as in the previous simulations using the axisymmetric geometry with the mirror symmetry at the equator. However, the time to generate the jet is longer than in the 2-D axisymmetric simulations. We expect that due to the additional freedom in the azimuthal dimension without axisymmetry with respect to the z axis and reflection symmetry with respect to the equatorial plane, the dynamics of jet formation can be modified. Further simulations are required for the study of instabilities along the azimuthal direction such as accretion-eject instability

Nishikawa, K I; Shibata, K; Kudoh, T; Sol, H

2002-01-01T23:59:59.000Z

162

3-D GRMHD Simulations of Generating Jets  

E-Print Network [OSTI]

We have performed a first fully 3-D GRMHD simulation with Schwarzschild black hole with a free falling corona. The initial simulation results show that a jet is created as in the previous simulations using the axisymmetric geometry with the mirror symmetry at the equator. However, the time to generate the jet is longer than in the 2-D axisymmetric simulations. We expect that due to the additional freedom in the azimuthal dimension without axisymmetry with respect to the z axis and reflection symmetry with respect to the equatorial plane, the dynamics of jet formation can be modified. Further simulations are required for the study of instabilities along the azimuthal direction such as accretion-eject instability

K. -I. Nishikawa; S. Koide; K. Shibata; T. Kudoh; H. Sol

2002-08-05T23:59:59.000Z

163

Ground Gravity Survey At Coso Geothermal Area (1990) | Open Energy  

Open Energy Info (EERE)

Coso Geothermal Area (1990) Coso Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Coso Geothermal Area (1990) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis To identify features related to the heat source and to seek possible evidence for an underlying magma chamber Notes 2D and 3D gravity modeling was done using gridded Bouguer gravity data covering a 45 by 45 km region over the Coso geothermal area. Isostatic and terrain corrected Bouguer gravity data for about 1300 gravity stations were obtained from the US Geological Survey. After the data were checked, the gravity values were gridded at 1 km centers for the area of interest

164

A 3D scanning system for biomedical purposes  

Science Journals Connector (OSTI)

The use of three-dimensional (3D) scanning systems for acquiring the external shape features of biological objects has recently been gaining popularity in the biomedical field. A simple, low cost, 3D scanning system is presented, which employs ... Keywords: 3D geometric modelling, 3D scanning, EFDs, biological objects, biomedical scanners, camera calibration, data acquisition, direct linear transformation, elliptical Fourier descriptors, laser light-sectioning, medical imaging, shape features

B. D. Bradley; A. D. C. Chan; M. J. D. Hayes

2009-06-01T23:59:59.000Z

165

Localization and 3D Reconstruction of Urban Scenes Using GPS  

E-Print Network [OSTI]

D models in Google earth · Manual modeling and texturing (sketch-up) · 3D model covers limited area

Haro, Antonio

166

3D Rendering and Ray Casting Michael Kazhdan  

E-Print Network [OSTI]

3D Rendering and Ray Casting Michael Kazhdan (600.357 / 600.457) HB Ch. 13.7, 14.6 FvDFH 15.5, 15.10 #12;Rendering · Generate an image from geometric primitives Rendering Geometric Primitives (3D) Raster Image (2D) #12;3D Rendering Example What issues must be addressed by a 3D rendering system? #12;Overview

Kazhdan, Michael

167

Using interactive 3-D visualization for public consultation  

Science Journals Connector (OSTI)

......www.presagis.com/products/content_creation/creator ) was used to create the model and Autodesk 3D Studio Max ( http://usa.autodesk.com/ ) was used to add further details to the model. The 3D games graphics engine Ogre 3D......

Paul van Schaik

2010-11-01T23:59:59.000Z

168

3D Printing Prof. Hank Dietz & Paul Eberhart  

E-Print Network [OSTI]

3D Printing Prof. Hank Dietz & Paul Eberhart September 28, 2013 University of Kentucky Electrical/Craft: paper moves in Y, knife in X EDM/Laser: X/Y bed, vaporizes material #12;Subtractive 3D CNC: Computer "The whole is greater than the sum of its parts." ­ Aristotle #12;Additive 3D Building Material

Dietz, Henry G. "Hank"

169

3-D Earth model more accurately pinpoints explosions  

E-Print Network [OSTI]

- 1 - 3-D Earth model more accurately pinpoints explosions October 25, 2013 During the Cold War, U) have partnered to develop a 3-D model of the Earth's mantle and crust called SALSA3D (Sandia-Los Alamos of explosions. Significance of the research After an explosion, the energy travels through the Earth as waves

170

Issues in the Development of 3D Icons Rob Erbacher  

E-Print Network [OSTI]

Issues in the Development of 3D Icons Rob Erbacher Georges Grinstein Institute for Visualization dimensions through the use of 3D icons. We briefly discuss geometric and color icons and the 2D textures they generate. We then exhibit a 3D icon, explain its parameters and features, and demonstrate how this icon

Erbacher, Robert F.

171

3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1  

E-Print Network [OSTI]

3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1 , D. De Baere2 , M. Rombouts3 , SSHM system is produced by 3D printing or additive manufacturing. Additive Manufacturing (AM) is a "process to enable its implementation. This work demonstrates the feasibility study of eSHM systems produced by 3D

Boyer, Edmond

172

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

173

Fast 3D Scanning for Biometric Identification and Verification  

E-Print Network [OSTI]

Fast 3D Scanning for Biometric Identification and Verification June 2011 Authors Anselmo., & Chen, A. (2011). Fast 3D Scanning for Biometric Identification and Verification. (Prepared by RTI..................................................10 Summary and Findings for Integration of Imperceptible Structured Lighting and SIS's 3D Snapshot

McShea, Daniel W.

174

3D imaging and ranging by time-correlated single  

E-Print Network [OSTI]

3D imaging and ranging by time-correlated single photon counting by A. M. Wallace, 6. S. Buller and A. C. Walker 3D imaging is an important tool for metrology and reverse engineering of components and architecturalsurveying. In this article, we review briefly the principal methods in current use for 3D imaging

Buller, Gerald S.

175

3D Scanning for Biometric Identification and Verification  

E-Print Network [OSTI]

June 2010 3D Scanning for Biometric Identification and Verification Project Leads Anselmo Lastra visibility, cannot be controlled. A relatively new biometric, 3D facial recognition, holds great promise performance using 3D shape and texture matched that of the much more mature technologies of high

McShea, Daniel W.

176

3D discrete rotations using hinge angles Yohan Thibaulta,  

E-Print Network [OSTI]

3D discrete rotations using hinge angles Yohan Thibaulta, , Akihiro Sugimotob , Yukiko Kenmochia a of Informatics, Japan Abstract In this paper, we study 3D rotations on grid points computed by using only integers. For that purpose, we investigate the intersection between the 3D half- grid and the rotation

Paris-Sud XI, Université de

177

3D Engineered Models for Stringless Paving Workshop  

E-Print Network [OSTI]

3D Engineered Models for Stringless Paving Workshop As the highway industry looks for greater productivity through electronic tools and methods, 3D modeling is fast becoming a standard for project delivery quality, cost, and time benefits from using 3D modeling. For construction, this includes more accurate

178

3D Laser Imaging at Highway Speed Kelvin CP Wang  

E-Print Network [OSTI]

3D Laser Imaging at Highway Speed Kelvin CP Wang And the Team Formerly at the University Concrete Consortium Meeting Oklahoma City Sheraton Hotel #12;3D Laser Imaging for Pavements Mature Potential to Cover Most if Not All Data Collection on Pavement Surface How to Obtain True 1mm 3D Visual

179

The 3D jigsaw puzzle: mapping large indoor spaces  

E-Print Network [OSTI]

The 3D jigsaw puzzle: mapping large indoor spaces Ricardo Martin-Brualla1 , Yanling He1 , Bryan C of famous tourist sites. While current 3D reconstruction algorithms often produce a set of disconnected components (3D pieces) for indoor scenes due to scene coverage or matching failures, we make use

Anderson, Richard

180

Analyzing 3D Images of the Brain NICHOLAS AYACHE  

E-Print Network [OSTI]

Analyzing 3D Images of the Brain NICHOLAS AYACHE OVERVIEW During the past 5 years, there has been research. Along these lines, and focusing on 3D images of the brain obtained with CT, MRI, SPECT, and PET for an objective analysis of 3D images of the brain. Such methods include segmentation, shape analysis, rigid

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "3d gravity inversion" 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

3-D Inversion Of Borehole-To-Surface Electrical Data Using A...  

Open Energy Info (EERE)

Electrical Data Using A Back-Propagation Neural Network Abstract The "fluid-flow tomography", an advanced technique for geoelectrical survey based on the conventional...

182

3D Tomographic Imaging Of The Southern Apennines (Italy)- A Statistical  

Open Energy Info (EERE)

Tomographic Imaging Of The Southern Apennines (Italy)- A Statistical Tomographic Imaging Of The Southern Apennines (Italy)- A Statistical Approach To Estimate The Model Uncertainty And Resolution Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3D Tomographic Imaging Of The Southern Apennines (Italy)- A Statistical Approach To Estimate The Model Uncertainty And Resolution Details Activities (0) Areas (0) Regions (0) Abstract: A new dataset of first P-wave arrival times is used to derive the 3D tomographic model of the Campania-Lucania region in the southern Apennines (Italy). We address the issue related to the non-uniqueness of the tomographic inversion solution through massive numerical experimentation based on the global exploration of the model parameter space starting from a large variety of physically plausible initial models.

183

Stack and cell modelling with SOFC3D: a computer program for the 3D simulations of  

E-Print Network [OSTI]

Stack and cell modelling with SOFC3D: a computer program for the 3D simulations of solid oxide fuel, France 1 Introduction SOFC3D is a computer program, which simulates the behaviour of a solid oxide fuel model A detailed cell model was obtained [9] by writing the conservation laws in the solid parts

Herbin, Raphaèle

184

Motion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory  

E-Print Network [OSTI]

Computing 3D reconstructions from X-ray projections is al- ready possible in some medical applications by Bayesian formalism as we want to handle either sparsely collected or limited-angle data, which are beyondMotion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory S. S

Brandt, Sami

185

3D turtle geometry: artwork, theory, program equivalence and symmetry  

Science Journals Connector (OSTI)

We define a 3D variant of turtle graphics and present the theoretical foundations of 3D turtle geometry. This theory enables one to reason about open and closed 3D polygonal paths by means of algebraic calculations. In particular, we introduce several equivalence relations on turtle programs and theorems that define corresponding standard forms. Also we express the relationship between the symmetries of a 3D polygonal path and the symmetries of a generating turtle program in a suitable standard form. Finally, we discuss software tool support for 3D turtle geometry. Along the way, we present some artworks designed through 3D turtle graphics. These artworks have never been described in the literature before.

Tom Verhoeff

2010-01-01T23:59:59.000Z

186

3-D Model for Deactivation & Decommissioning | Department of Energy  

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

3-D Model for Deactivation & Decommissioning 3-D Model for Deactivation & Decommissioning 3-D Model for Deactivation & Decommissioning The design and production of 3-D scale models that replicate the highly contaminated structures within the nuclear facility would provide a significant improvement in visualization of the work space, which would give managers and supervisors a more powerful tool for planning and communicating safety issues and work sequences to personnel executing the physical D&D tasks. 3-D Model for Deactivation & Decommissioning More Documents & Publications D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization D&D and Risk Assessment Tools 3-D Model for Deactivation & Decommissioning Deactivation & Decommissioning Knowledge Management Information Tool (D&D

187

Azimuthal reflectivity inversion  

E-Print Network [OSTI]

derivation assumes an isotropic half-space over an anisotropic half-space. This assumption is ..... D., 2010, Principle stress estimation in shale plays using 3D.

mshepher

2012-10-30T23:59:59.000Z

188

NASA to send 3D printer into space  

Science Journals Connector (OSTI)

... time that a 3D printer flies in space. The agency has already embraced ground-based 3D printing as a fast, cheap way to make spacecraft parts, including rocket engine components that ... to make spacecraft parts literally on the fly. Space experts say that the promise of 3D printing is real, but a long way from the hype that surrounds it. “There’ ...

Alexandra Witze

2014-09-10T23:59:59.000Z

189

Climate Change Capacity Development (C3D+) | Open Energy Information  

Open Energy Info (EERE)

C3D+) C3D+) Jump to: navigation, search Logo: Climate Change Capacity Development (C3D+) Name Climate Change Capacity Development (C3D+) Agency/Company /Organization United Nations Institute for Training and Research (UNITAR) Partner Caribbean Climate Change Community Centre (CCCCC), Climate System Analysis Group at UCT Cape Town (CSAG), Environment and Development Action in the Third World (ENDA-TM), University of Cape Town-Energy Research Centre, South Pacific Regional Environment Programme (SPREP), Munasinghe Institute (MIND), Center for International Forestry Research, International Institute for Sustainable Development (IISD), Stockholm Environment Institute Sector Climate Topics Low emission development planning Resource Type Training materials

190

Coordination Polymers A Unique 3D Alternating Ferro-and  

E-Print Network [OSTI]

(3-ptz)] (3-ptz = 5-(3-pyridyl)tetrazolate),[7e] in which the metal centers are diamagnetic 3d10 cadmium

Gao, Song

191

Identificering af teknologi gennem narrativer; 3D print.  

E-Print Network [OSTI]

??Denne rapport arbejder med en gennemgang af den såkaldte 3D printer teknologi. Denne vil sættes i sammenhæng med et teknologifilosofisk ’form of life ? forståelse… (more)

Petersen, Mikael

2011-01-01T23:59:59.000Z

192

3D Printing of nanostructured catalytic materials | The Ames...  

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

3D Printing of nanostructured catalytic materials Over the last couple of decades, scientists have been able to develop a tremendous control over the synthesis and properties of...

193

From Digital to Physical: Computational Aspects of 3D Manufacturing.  

E-Print Network [OSTI]

??The desktop publishing revolution of the 1980s is currently repeating itself in 3D, referred to as desktop manufacturing. Online services such as Shapeways have become… (more)

Baecher, Moritz Niklaus

2013-01-01T23:59:59.000Z

194

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization  

Broader source: Energy.gov [DOE]

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization presentation at the April 2013 peer review meeting held in Denver, Colorado.

195

Just Plain Cool, the 3D Printed Shelby Cobra  

Broader source: Energy.gov [DOE]

Indistinguishable from conventional production vehicles on display, the 3D printed Shelby Cobra celebrated its 50th anniversary at the Detroit Auto Show in early January.

196

Ames Laboratory 3D printing technology research taking shape...  

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

3D printing technology research taking shape Contacts: For Release: Sept. 23, 2014 Igor Slowing, Chemical and Biological Sciences, 515-294-1959 Laura Millsaps, Public Affairs,...

197

Making 3D Printed Christmas Ornaments | GE Global Research  

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

enjoys baking cookies and snowball fights. Recent Posts by This Contributor Using 3D Printing to Redesign Santa's Sleigh A Sneak Peek Into Santa's Smarter Sleigh Subscribe to...

198

Homogeneous and Interfacial Catalysis in 3D Controlled Environment...  

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

Homogeneous and Interfacial Catalysis in 3D Controlled Environment FWPProject Description: Project Leader(s): Marek Pruski Principal Investigators: Andreja Bakac, Marek Pruski,...

199

RELAP5-3D V. 4.X.X  

Energy Science and Technology Software Center (OSTI)

000191MLTPL01 NON-NRC FUNDED RELAP5-3D VERSION 4.x.x SOFTWARE REACTOR EXCURSION AND LEAK ANALYSIS PACKAGE - THREE DIMENSIONAL   

200

Nano, photonic research gets boost from new 3-D visualization...  

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

imaging (CSSI) data. An image as 2-D coherent surface scattering imaging (CSSI) data. Nano, photonic research gets boost from new 3-D visualization technology By Tona Kunz *...

Note: This page contains sample records for the topic "3d gravity inversion" 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

Chapter 7 - Prestack Seismic Inversion and Seismic Attribute Analysis  

Science Journals Connector (OSTI)

Abstract Based on seismic, logging, and geological data, the seismic inversion technique can reveal the spatial characteristics (including reservoir thickness, structural characteristics, extending direction, extending range, pinch-out location, and others) of the target layers, such as reservoirs or coal seams. By combining a large area of the continuous distribution of seismic data with high-resolution well logging data, this technique transforms conventional seismic data into a high-resolution well data volume, enabling us to use the acoustic characteristics of rock formations to ascertain lithological interfaces. So we can extrapolate the borehole lithological and physical properties and hydrocarbon features from points to lines and lines to faces, and predict lateral reservoir variations and reservoir properties from known reservoir characteristics. Seismic inversion technology has been one of the core technologies for reservoir characteristics and reservoir prediction. Seismic attribute analysis is the premise of fine reservoir characteristics and fine 3D seismic interpretation, which help us uncover information about lithology and reservoir heterogeneity from seismic data. The work of seismic attribute analysis includes (1) extracting various seismic attributes from poststack seismic data; (2) conducting crossplot analysis of seismic attributes and reservoir properties (including geology, well logging, and petrophysical parameters) to establish relationships between seismic attributes and reservoir parameters; and (3) dynamically interpreting 3D seismic, geological, and logging data, which helps us to study the relationships between seismic reflection characteristics and sedimentary and tectonic information, predict the reservoir spatial distribution, and reveal how fracture systems influence the reservoir distribution. Development of the seismic inversion technique in reservoir characterization can be summarized in four stages: the first stage was in the 1960s. In this stage, the exploration targets were structural reservoirs, and seismic inversion techniques were not used. The second stage was in the 1970s. The exploration targets were structural and lithological reservoirs, and no well-constraint seismic inversion techniques were used. The third stage was in the 1980s, when many new techniques were developed. Seismic inversion techniques, including the prestack amplitude versus offset (AVO) technique and wave impedance inversion technique, developed rapidly and greatly improved our understanding of seismic reservoir characterization. The fourth stage is the stage of reservoir characterization and dynamic monitoring in the 1990s. Seismic inversion techniques are used for reservoir dynamic characterization, such as 3D AVO inversion, well-seismic joint inversion, reservoir characteristics curve reconstruction, multiparameter reservoir inversion, and the elastic wave impedance inversion techniques. Prestack seismic data contain richer information than do poststack data, so prestack seismic inversion and attribute analysis are increasingly important in oil and gas exploration.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

202

Ambient noise surface wave tomography to determine the shallow shear velocity structure at Valhall: depth inversion with a Neighbourhood Algorithm  

Science Journals Connector (OSTI)

......dispersion. 4.3 Construction of a hybrid model Adding a single additional...inversion results. Therefore, a final hybrid 3-D model is constructed only...resources provided by the European Grid Infrastructure. For more information, please......

A. Mordret; M. Landès; N. M. Shapiro; S. C. Singh; P. Roux

2014-01-01T23:59:59.000Z

203

Fluid Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical  

Open Energy Info (EERE)

Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Inverse Modeling Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Fluid Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Inverse Modeling Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Fluid Imaging Project Description EGS has been defined as enhanced reservoirs that have been created to extract economical amounts of heat from low permeability and/or porosity geothermal resources. Critical to the success of EGS is the successful manipulation of fluids in the subsurface to enhance permeability. Knowledge in the change in volume and location of fluids in the rocks and fractures (both natural and induced) will be needed to manage injection strategies such as the number and location of step out wells, in-fill wells and the ratio of injection to production wells. The key difficulty in manipulating fluids has been our inability to reliably predict their locations, movements and concentrations. We believe combining data from MEQ and electrical surveys has the potential to overcome these problems and can meet many of the above needs, economically. Induced seismicity is currently viewed as one of the essential methods for inferring the success of creating fracture permeability and fluid paths during large scale EGS injections. Fluids are obviously playing a critical role in inducing the seismicity, however, other effects such as thermal, geochemical and stress redistribution, etc. may also play a role.

204

Shape-based retrieval and analysis of 3D models  

Science Journals Connector (OSTI)

Large repositories of 3D data are rapidly becoming available in several fields, including mechanical CAD, molecular biology, and computer graphics. As the number of 3D models grows, there is an increasing need for computer algorithms to help people find ...

Thomas Funkhouser; Michael Kazhdan

2004-08-01T23:59:59.000Z

205

WirePrint: 3D printed previews for fast prototyping  

Science Journals Connector (OSTI)

Even though considered a rapid prototyping tool, 3D printing is so slow that a reasonably sized object requires printing overnight. This slows designers down to a single iteration per day. In this paper, we propose to instead print low-fidelity wireframe ... Keywords: 3D printing, rapid prototyping

Stefanie Mueller, Sangha Im, Serafima Gurevich, Alexander Teibrich, Lisa Pfisterer, François Guimbretière, Patrick Baudisch

2014-10-01T23:59:59.000Z

206

Surface light fields for 3D photography Daniel N. Wood  

E-Print Network [OSTI]

Surface light fields for 3D photography Daniel N. Wood A dissertation submitted in partial This is to certify that I have examined this copy of a doctoral dissertation by Daniel N. Wood and have found for 3D photography by Daniel N. Wood Chair of Supervisory Committee: Associate Professor Brian L

Washington at Seattle, University of

207

Mastering AutoCAD Civil 3D 2011  

Science Journals Connector (OSTI)

The only comprehensive reference and tutorial for Civil 3D 2011 Civil 3D is Autodesks popular, robust civil engineering software, and this fully updated guide is the only one endorsed by Autodesk to help students prepare for certification exams. Packed ...

P. James E. Wedding; Scott McEachron

2010-08-01T23:59:59.000Z

208

Automatic 3D modeling of palatal plaster casts Marco Andreetto  

E-Print Network [OSTI]

Automatic 3D modeling of palatal plaster casts Marco Andreetto Dept. of Information Engineer-form surfaces of anatomi- cal interest. 1. Introduction Plaster models derived from palate's impressions. A data-base with the 3D models of the plaster casts, which could be called a "virtual gypsotheque", can

Abu-Mostafa, Yaser S.

209

Surround structured lighting: 3-D scanning with orthographic illumination  

Science Journals Connector (OSTI)

This paper presents a new system for rapidly acquiring complete 3-D surface models using a single orthographic structured light projector, a pair of planar mirrors, and one or more synchronized cameras. Using the mirrors, we project structured light ... Keywords: 3-D reconstruction, Full object scanning, Gray codes, Orthographic projection, Structured lighting

Douglas Lanman; Daniel Crispell; Gabriel Taubin

2009-11-01T23:59:59.000Z

210

Chopper: Partitioning models into 3D-printable parts  

E-Print Network [OSTI]

3D printing technology is rapidly maturing and becoming ubiquitous. One of the remaining obstacles to wide-scale adoption is that the object to be printed must fit into the working volume of the 3D printer. We propose a ...

Luo, Linjie

211

3D Wavelet-Based Filter and Method  

DOE Patents [OSTI]

A 3D wavelet-based filter for visualizing and locating structural features of a user-specified linear size in 2D or 3D image data. The only input parameter is a characteristic linear size of the feature of interest, and the filter output contains only those regions that are correlated with the characteristic size, thus denoising the image.

Moss, William C. (San Mateo, CA); Haase, Sebastian (San Francisco, CA); Sedat, John W. (San Francisco, CA)

2008-08-12T23:59:59.000Z

212

3D THERMOGRAPHY FOR QUANTIFICATION OF HEAT GENERATION RESULTING FROM  

E-Print Network [OSTI]

been used for decades by biologists and clinicians to isolate main sites of body heat loss by biologists and clinicians to isolate main sites of body heat loss and to assist with diagnosis3D THERMOGRAPHY FOR QUANTIFICATION OF HEAT GENERATION RESULTING FROM INFLAMMATION THERMOGRAPHIE 3D

Nebel, Jean-Christophe

213

A 3-D gravity model for a volcanic crater in Terceira Island (Azores)  

Science Journals Connector (OSTI)

......Guedes J.H.C., Lucas A., 1997. Registos obtidos na rede acelerometrica dos Acores durante a crise sismica de Junho-Outubro...Sao Jorge iniciada com o sismo de 9 de Julho de 1998 vista na rede acelerografica dos Acores, Proc. 1st Simposio de Meteorologia......

F. G. Montesinos; A. G. Camacho; J. C. Nunes; C. S. Oliveira; R. Vieira

2003-08-01T23:59:59.000Z

214

3D printing rises to the occasion | ornl.gov  

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

Features Features 2014 2013 2012 2011 2010 News Home | ORNL | News | Features | 2013 SHARE 3D printing rises to the occasion ORNL group shows how it's done, one layer at a time A perforated metal box produced by an Arcam 3D printer. This detailed A perforated metal box produced by an Arcam 3D printer. This detailed "calibration" part illustrates some of the versatility of 3D printing. Photo: Jason Richards (hi-res image) Things have come a long way since the mid-1980s when 3D Systems cofounder Chuck Hull worked out the technology to print objects in three dimensions, one very thin layer at a time. Hull called his new technology "stereolithography." In it, a guided beam of ultraviolet light is focused on a vat of liquid polymer, solidifying areas where it hits. When one layer is complete, the

215

Energy Savings in 3-D | ornl.gov  

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

Energy savings in 3-D Energy savings in 3-D ORNL researchers show production, energy advantages of additive manufacturing ORNL 3-D printer in use. ORNL 3-D printer in use. Researchers at the Department of Energy's Oak Ridge National Laboratory are working with aircraft makers to determine energy savings through the use of additive manufacturing, also known as 3-D printing. Sachin Nimbalkar and his ORNL colleagues are printing airplane parts to show additive manufacturing's potential as a technology that should be considered foundational to processes seeking more energy efficiency. Additive manufacturing builds products precisely, layer by layer, and is distinctly different from traditional subtractive manufacturing processes, which take raw material and cut it down into a desired shape and size.

216

A High-Throughput 3-D X-ray Microtomography System with Real-Time 3-D  

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

Throughput 3-D X-ray Microtomography System with Real-Time 3-D Throughput 3-D X-ray Microtomography System with Real-Time 3-D Reconstruction A high-throughput x-ray microtomography system (XMS) that can acquire, reconstruct, and interactively display rendered 3-D images of a sample at micrometer-scale resolution within minutes has been developed at Advanced Photon Source (APS) beamline 2-BM, which is managed by the Synchrotron Radiation Instrumentation Collaborative Access Team (SRI-CAT). This system could bring better understanding of an array of scientific and technological problems, ranging from failure in microelectronic devices to structures in biological samples. A rendered image from a three-dimensional tomographic reconstruction of a cricket, obtained with the x-ray microtomography system. The image has been digitally cut at different planes to show the internal structures of the cricket's head.

217

Quantum Field Theory & Gravity  

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

Field Theory & Gravity Quantum Field Theory & Gravity Understanding discoveries at the Energy, Intensity, and Cosmic Frontiers Get Expertise Rajan Gupta (505) 667-7664 Email...

218

Real time 3D and heterogeneous data fusion  

SciTech Connect (OSTI)

This project visualizes characterization data in a 3D setting, in real time. Real time in this sense means collecting the data and presenting it before it delays the user, and processing faster than the acquisition systems so no bottlenecks occur. The goals have been to build a volumetric viewer to display 3D data, demonstrate projecting other data, such as images, onto the 3D data, and display both the 3D and projected images as fast as the data became available. The authors have examined several ways to display 3D surface data. The most effective was generating polygonal surface meshes. They have created surface maps form a continuous stream of 3D range data, fused image data onto the geometry, and displayed the data with a standard 3D rendering package. In parallel with this, they have developed a method to project real-time images onto the surface created. A key component is mapping the data on the correct surfaces, which requires a-priori positional information along with accurate calibration of the camera and lens system.

Little, C.Q.; Small, D.E.

1998-03-01T23:59:59.000Z

219

3D Spectroscopy in the Virtual Observatory: Current Status  

E-Print Network [OSTI]

Three cornerstones for the 3D data support in the Virtual Observatory are: (1) data model to describe them, (2) data access services providing access to fully-reduced datasets, and (3) client applications which can deal with 3D data. Presently all these components became available in the VO. We demonstrate an application of the IVOA Characterisation data model to description of IFU and Fabry-Perot datasets. Two services providing SSA-like access to 3D-spectral data and Characterisation metadata have been implemented by us: ASPID-SR at SAO RAS for accessing IFU and Fabry-Perot data from the Russian 6-m telescope, and the Giraffe Archive at the VO Paris portal for the VLT FLAMES-Giraffe datasets. We have implemented VO Paris Euro3D Client, handling Euro3D FITS format, that interacts with CDS Aladin and ESA VOSpec using PLASTIC to display spatial and spectral cutouts of 3D datasets. Though the prototype we are presenting is yet rather simple, it demonstrates how 3D spectroscopic data can be fully integrated into the VO infrastructure.

Igor Chilingarian; Francois Bonnarel; Mireille Louys; Ivan Zolotukhin; Frederic Royer; Isabelle Jegouzo; Pierre Le Sidaner; Pierre Fernique; Thomas Boch

2007-11-02T23:59:59.000Z

220

Grafta: A 3D environment for biomolecular networks  

Science Journals Connector (OSTI)

The importance of a comprehensive environment for the depiction of biomolecular networks in the domain of system biology has been emphasised after the completion of genomic, proteomic and metabolomic initatives. Grafta is a software application developed for the three dimensional illustration of biomolecular interactions such as protein interaction networks. Grafta allows its user to move in a 3D environment through a complex assembly of biomolecules represented by 3D objects such as spheres. Their interactions are displayed by an array of 3D tubes. One novelty in Grafta is its anthropomorphic navigation of the viewpoint with respect to the displayed biomolecular network.

Peyman Najmabadi; Hans He Lee; Tony Aung; Aung Thuya; Julio Ng; James J. La Clair; Michael D. Burkart

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Controlling Tokamak Geometry with 3D Magnetic Perturbations  

E-Print Network [OSTI]

It is shown that small externally applied magnetic perturbations can significantly alter important geometric properties of magnetic flux surfaces in tokamaks. Through 3D shaping, experimentally relevant perturbation levels are large enough to influence turbulent transport and MHD stability in the pedestal region. It is shown that the dominant pitch-resonant flux surface deformations are primarily induced by non-resonant 3D fields, particularly in the presence of significant axisymmetric shaping. The spectral content of the applied 3D field can be used to control these effects.

Bird, Thomas M

2014-01-01T23:59:59.000Z

222

Shallow quantum well excitons: 2D or 3D?  

Science Journals Connector (OSTI)

A new regime is obtained in semiconductor heterostructures with constituents of nearly identical band gaps. Previously, it has been shown that even extremely shallow quantum wells (SHQWs) exhibit excitonic and electroabsorption properties typical of a 2D system, but 3D transport features. We show that, surprisingly, even when carriers are two-dimensionally confined in SHQWs, the hole spin relaxation is extremely fast (?400 fsec) as in the bulk (3D) limit and that a 2D-3D transition in the hole spin dynamics in GaAs/AlxGa1-xAs SHQWs takes place at x?5%.

I. Brener; W. H. Knox; K. W. Goossen; J. E. Cunningham

1993-01-18T23:59:59.000Z

223

Approaches for Additive Manufacturing of 3D Electronic Applications  

Science Journals Connector (OSTI)

Abstract Additive manufacturing processes typically used for mechanical parts can be combined with enhanced technologies for electronics production to enable a highly flexible manufacturing of personalized 3D electronic devices. To illustrate different approaches for implementing electrical and electronic functionality, conductive paths and electronic components were embedded in a powder bed printed substrate using an enhanced 3D printer. In addition, a modified Aerosol Jet printing process and assembly technologies adapted from the technology of Molded Interconnect Devices were applied to print circuit patterns and to electrically interconnect components on the surface of the 3D substrates.

J. Hoerber; J. Glasschroeder; M. Pfeffer; J. Schilp; M. Zaeh; J. Franke

2014-01-01T23:59:59.000Z

224

Fluorescence Detector for Capillary Separations Fabricated by 3D Printing  

Science Journals Connector (OSTI)

Fluorescence Detector for Capillary Separations Fabricated by 3D Printing ... Additive manufacturing, also known as 3D printing, rapid prototyping, or solid-freeform technology, has become an efficient method for rapid prototyping and fabrication applications ranging from small home projects to architecture and industrial machining. ... Compared to the more expensive alternatives using the standard optic component, the 3D printing provides significant cost reduction and, especially, sharing of information between laboratories for easy replication or further modifications, customization of the spatial arrangement, and miniaturization. ...

Jan Prikryl; Frantisek Foret

2014-11-26T23:59:59.000Z

225

Comparison of 2D and 3D gamma analyses  

SciTech Connect (OSTI)

Purpose: As clinics begin to use 3D metrics for intensity-modulated radiation therapy (IMRT) quality assurance, it must be noted that these metrics will often produce results different from those produced by their 2D counterparts. 3D and 2D gamma analyses would be expected to produce different values, in part because of the different search space available. In the present investigation, the authors compared the results of 2D and 3D gamma analysis (where both datasets were generated in the same manner) for clinical treatment plans. Methods: Fifty IMRT plans were selected from the authors’ clinical database, and recalculated using Monte Carlo. Treatment planning system-calculated (“evaluated dose distributions”) and Monte Carlo-recalculated (“reference dose distributions”) dose distributions were compared using 2D and 3D gamma analysis. This analysis was performed using a variety of dose-difference (5%, 3%, 2%, and 1%) and distance-to-agreement (5, 3, 2, and 1 mm) acceptance criteria, low-dose thresholds (5%, 10%, and 15% of the prescription dose), and data grid sizes (1.0, 1.5, and 3.0 mm). Each comparison was evaluated to determine the average 2D and 3D gamma, lower 95th percentile gamma value, and percentage of pixels passing gamma. Results: The average gamma, lower 95th percentile gamma value, and percentage of passing pixels for each acceptance criterion demonstrated better agreement for 3D than for 2D analysis for every plan comparison. The average difference in the percentage of passing pixels between the 2D and 3D analyses with no low-dose threshold ranged from 0.9% to 2.1%. Similarly, using a low-dose threshold resulted in a difference between the mean 2D and 3D results, ranging from 0.8% to 1.5%. The authors observed no appreciable differences in gamma with changes in the data density (constant difference: 0.8% for 2D vs 3D). Conclusions: The authors found that 3D gamma analysis resulted in up to 2.9% more pixels passing than 2D analysis. It must be noted that clinical 2D versus 3D datasets may have additional differences—for example, if 2D measurements are made with a different dosimeter than 3D measurements. Factors such as inherent dosimeter differences may be an important additional consideration to the extra dimension of available data that was evaluated in this study.

Pulliam, Kiley B.; Huang, Jessie Y.; Howell, Rebecca M.; Followill, David; Kry, Stephen F., E-mail: sfkry@mdanderson.org [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States); Bosca, Ryan [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States)] [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States); O’Daniel, Jennifer [Department of Radiation Oncology, Duke University, Durham, North Carolina 27705 (United States)] [Department of Radiation Oncology, Duke University, Durham, North Carolina 27705 (United States)

2014-02-15T23:59:59.000Z

226

Software: DIF3D - Nuclear Engineering Division (Argonne)  

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

D D Software: ETOE-2 MC2-2 SDX DIF3D DIF3DK VIM REBUS-3 RCT ORIGEN-RA VARI3D SE2-ANL (SUPERENERGY2) SAS4A/SASSYS-1 SAS-DIF3DK MSET PRODIAG Join us on Facebook Follow us on Twitter NE on Flickr Celebrating the 70th Anniversary of Chicago Pile 1 (CP-1) Argonne OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Software DIF3D (Diffusion and Transport Theory Codes) Bookmark and Share Standard Code Description NAME AND TITLE DIF3D 10.0: Code System Using Variational Nodal Methods and Finite Difference Methods to Solve Neutron Diffusion and Transport Theory Problems. CONTRIBUTOR K. L. Derstine Nuclear Engineering Division Argonne National Laboratory, Argonne, Illinois 60439. CODING LANGUAGE AND COMPUTER Fortran 90 and C source code for Linux PCs, MacOSX and SUN, (C00784MNYCP00).

227

3-D Earth model more accurately pinpoints explosions  

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

3-D Earth model more accurately pinpoints explosions 3-D Earth model more accurately pinpoints explosions 3-D Earth model more accurately pinpoints explosions The purpose of this model is to assist the U.S. Air Force and the international Comprehensive Nuclear Test Ban Treaty Organization with more accurately locating all types of explosions. October 25, 2013 A one-dimensional velocity profile with depth plotted within a three-dimensional Earth. The colors are compressional wave velocity in km/s. The rays are examples coming from a pseudo station at the North Pole. This model is used as the starting point to calculate the full SALSA3D velocity model. A one-dimensional velocity profile with depth plotted within a three-dimensional Earth. The colors are compressional wave velocity in km/s. The rays are examples coming from a pseudo station at the North Pole.

228

3D Photonic Crystals for Photon Management in Solar Cells  

Science Journals Connector (OSTI)

Photon management is a key element to optimize the optical and electro-optical performance of solar cells. The potential of 3D photonic crystals for photon management in solar cells...

Wehrspohn, Ralf; Sprafke, Alexander

229

3-D Thermoconvection in an Anisotropic Inclined Sedimentary Layer  

Science Journals Connector (OSTI)

......3-D thermoconvection in an anisotropic inclined sedimentary layer...basin generally present an anisotropic structure with maximum permeability...We extend these results to anisotropic media, with anisotropies...are usually embedded in a shale matrix (Busch 1974; Pettijohn......

Anne Ormond; Pierre Genthon

1993-02-01T23:59:59.000Z

230

3D Printing a Classic | Department of Energy  

Energy Savers [EERE]

a Classic 3D Printing a Classic January 15, 2015 - 4:02pm Addthis The team from the Oak Ridge Manufacturing Demonstration Facility is at the Detroit Auto Show this week to...

231

3D Modelling of Enhanced Surface Emission by Surface Roughening  

Science Journals Connector (OSTI)

3D FDTD is used to study the effect of surface roughening on the emission of a point source embedded in GaAs with a mirror behind the dipole. Enhancement factors of 10:1 are observed.

Buss, Ian J; Cryan, Martin J; Ho, Daniel; Craddock, Ian; Nash, Geoff; Haigh, Mary K; Railton, Chris; Rarity, John G

232

Investigation of 3-D Heat Transfer Effects in Fenestration Products.  

E-Print Network [OSTI]

??ABSTRACT INVESTIGATION OF 3-D HEAT TRANSFER EFFECTS IN FENESTRATION PRODUCTS SEPTEMBER 2010 SNEH KUMAR B. TECH., INDIAN INSTITUTE OF TECHNOLOGY, CHENNAI INDIA M.S.M.E., UNIVERSITY OF… (more)

Kumar, Sneh

2010-01-01T23:59:59.000Z

233

3D Printed Car at the International Manufacturing Technology...  

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

Courtesy of Local Motors Carbon Fiber Pellets 4 of 6 Carbon Fiber Pellets Pellets of plastic mixed with carbon fiber were used in the production process of the 3D-printed car....

234

Introducing 3D Venn and Euler Diagrams Peter Rodgers1  

E-Print Network [OSTI]

University of Kent, UK p.j.rodgers@kent.ac.uk 2 Autodesk, UK 3 Visual Modelling Group, University of Brighton Venn-3s. www.eulerdiagrams.com/3D/workshop/. Using the freely available Autodesk Design Review software

Kent, University of

235

BUILD YOUR OWN 3D GLASSES! Oaktag (sturdy poster board)  

E-Print Network [OSTI]

BUILD YOUR OWN 3D GLASSES! Materials · Oaktag (sturdy poster board) · Scissors · Clear tape · Basic or sturdy poster board. Cut the glasses out making sure to also cut out the eyeholes. Step 3 Tape the red

Christian, Eric

236

3D Maneuvers For Asymmetric Under-Actuated Rigid Body  

E-Print Network [OSTI]

single-axis maneuvers and (ii) three-dimensional (3D) coupled maneuvers. The sequential single-axis maneuver strategies are established for torque, time, and fuel minimization applications. The resulting control laws are more complicated than...

Kim, Dong Hoon

2013-08-01T23:59:59.000Z

237

3D Printed Quantum Dot Light-Emitting Diodes  

Science Journals Connector (OSTI)

Developing the ability to 3D print various classes of materials possessing distinct properties could enable the freeform generation of active electronics in unique functional, interwoven architectures. ... Finally, we show that novel architectures that are not easily accessed using standard microfabrication techniques can be constructed, by 3D printing a 2 × 2 × 2 cube of encapsulated LEDs, in which every component of the cube and electronics are 3D printed. ... These include (1) increasing the resolution of the 3D printer such that smaller devices can be printed, (2) improving the performance and yield of the printed devices, and (3) incorporating other classes of nanoscale functional building blocks and devices, including semiconductor, plasmonic, and ferroelectric materials. ...

Yong Lin Kong; Ian A. Tamargo; Hyoungsoo Kim; Blake N. Johnson; Maneesh K. Gupta; Tae-Wook Koh; Huai-An Chin; Daniel A. Steingart; Barry P. Rand; Michael C. McAlpine

2014-10-31T23:59:59.000Z

238

Quantitative Data Analysis Methods for 3D Microstructure  

E-Print Network [OSTI]

of electrochemical ceramic devices such as solid oxide fuel and electrolyser cells depends on the distributionQuantitative Data Analysis Methods for 3D Microstructure Characterization of Solid Oxide Cells

239

3-D Earth model more accurately pinpoints explosions  

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

3-D Earth model more accurately pinpoints explosions The purpose of this model is to assist the U.S. Air Force and the international Comprehensive Nuclear Test Ban Treaty...

240

3D EMHD reconnection in a laboratory plasma  

Science Journals Connector (OSTI)

In a large laboratory plasma, reconnection of three-dimensional (3D) magnetic fields is studied in the parameter regime of electron magnetohydrodynamics (EMHD). The field topologies are spheromak-like with two-di...

R. L. Stenzel; J. M. Urrutia; M. C. Griskey; K. D. Strohmaier

2001-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

A fast 3D full-wave solver for nanophotonics  

E-Print Network [OSTI]

Conventional fast integral equation solvers seem to be ideal approaches for simulating 3-D nanophotonic devices, as these devices are considered to be open structures, generating fields in both an interior channel and in ...

Zhang, Lei, Ph. D. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.

2007-01-01T23:59:59.000Z

242

Segmentation of 3D Meshes through Spectral Clustering  

E-Print Network [OSTI]

2 , 2/ , ji eji D W - = 2/12/1 -- = WLLO L : diagonal matrix of W 's row sums Normalization PG '04Segmentation of 3D Meshes through Spectral Clustering Rong Liu, Hao Zhang GrUVi Lab, Simon Fraser

Zhang, Richard "Hao"

243

3D pose estimation and segmentation using specular cues  

E-Print Network [OSTI]

We present a system for fast model-based segmentation and 3D pose estimation of specular objects using appearance based specular features. We use observed (a) specular reflection and (b) specular flow as cues, which are ...

Raskar, Ramesh

244

3D printing: a valuable resource in human anatomy education  

Science Journals Connector (OSTI)

In addition to known methods such as plastination and Thiel method embalming, a new three-dimensional printing system (3D printing) has been developed recently—an innovative approach...

Mauro Vaccarezza; Veronica Papa

2014-10-01T23:59:59.000Z

245

3-D Seismic Methods for Shallow Imaging Beneath Pavement  

E-Print Network [OSTI]

The research presented in this dissertation focuses on survey design and acquisition of near-surface 3D seismic reflection and surface wave data on pavement. Increased efficiency for mapping simple subsurface interfaces ...

Miller, Brian

2013-05-31T23:59:59.000Z

246

3D Tracking at the Nanoscale | The Ames Laboratory  

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

3D Tracking at the Nanoscale A new theory shows that reactivity at catalytic sites inside narrow pores is controlled by how molecules move at the pore openings. Like cars...

247

Computational imaging for 3D phase and coherence retrieval |...  

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

Computational imaging for 3D phase and coherence retrieval Wednesday, December 10, 2014 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Speaker: Laura Waller (UC Berkeley) Program...

248

Observing Warm Clouds in 3D Using ARM Scanning Cloud  

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

Observing Warm Clouds in 3D Using ARM Scanning Cloud Radars and a Novel Ensemble Method For original submission and image(s), see ARM Research Highlights http:www.arm.gov...

249

3D Representations for Software Visualization Andrian Marcus  

E-Print Network [OSTI]

research from software analysis, information visualization, human-computer interaction, and cognitive, texture, abstraction mechanism, and by supporting new manipulation techniques and user interfaces.2 [Information Interfaces and Presentation] User Interfaces Keywords: Software visualization, 3D visualization

250

Further Analysis of 3D Magnetotelluric Measurements Over the Coso  

Open Energy Info (EERE)

Further Analysis of 3D Magnetotelluric Measurements Over the Coso Further Analysis of 3D Magnetotelluric Measurements Over the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Further Analysis of 3D Magnetotelluric Measurements Over the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: At last year's GRC annual meeting we presented initial results of a 3D investigation of the Coso Geothermal field utilizing a dense grid of magnetotelluric (MT) stations plus a single line of contiguous bipole array profiling over the east flank of the field (Newman et al., 2005). Motivation for this study is that electrical resistivity/ conductivity mapping can contribute to better improved understanding of enhanced geothermal systems (EGS) by imaging the geometry, bounds and controlling

251

3-D Earth model more accurately pinpoints explosions  

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

3-D Earth model more accurately pinpoints explosions 3-D Earth model more accurately pinpoints explosions 3-D Earth model more accurately pinpoints explosions The purpose of this model is to assist the U.S. Air Force and the international Comprehensive Nuclear Test Ban Treaty Organization with more accurately locating all types of explosions. October 25, 2013 A one-dimensional velocity profile with depth plotted within a three-dimensional Earth. The colors are compressional wave velocity in km/s. The rays are examples coming from a pseudo station at the North Pole. This model is used as the starting point to calculate the full SALSA3D velocity model. A one-dimensional velocity profile with depth plotted within a three-dimensional Earth. The colors are compressional wave velocity in km/s. The rays are examples coming from a pseudo station at the North Pole.

252

D3-D7 holographic dual of a perturbed 3D CFT  

Science Journals Connector (OSTI)

An appropriately oriented D3-D7-brane system is the holographic dual of relativistic fermions occupying a 2+1-dimensional defect embedded in a 3+1-dimensional spacetime. The fermions interact via fields of N=4 Yang-Mills theory in the 3+1-dimensional bulk. Recently, using internal flux to stabilize the system in the probe N7?N3 limit, a number of solutions which are dual to conformal field theories with fermion content have been found. We use holographic techniques to study perturbations of a particular one of the conformal field theories by relevant operators. Generally, the response of a conformal field theory to such a perturbation grows and becomes nonperturbative at low energy scales. We shall find that a perturbation which switches on a background magnetic field B and fermion mass m induces a renormalization group flow that can be studied perturbatively in the limit of small m2/B. We solve the leading order explicitly. We find that, for one particular value of internal flux, the system exhibits magnetic catalysis, the spontaneous breaking of chiral symmetry enhanced by the presence of the magnetic field. In the process, we derive formulas predicting the Debye screening length of the fermion-antifermion plasma at finite density and the diamagnetic moment of the ground state of the fermion system in the presence of a magnetic field.

Hamid Omid and Gordon W. Semenoff

2013-07-10T23:59:59.000Z

253

Development of an embedded 3D graphics processor  

E-Print Network [OSTI]

DEVELOPMENT OF AN EMBEDDED 3D GRAPHICS PROCESSOR A Thesis by BRIAN MURRAY Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 2002 Major... Subject: Computer Engineering DEVELOPMENT OF AN EMBEDDED 3D GRAPHICS PROCESSOR A Thesis by BRIAN MURRAY Submitted to Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved as to style...

Murray, Brian

2012-06-07T23:59:59.000Z

254

Object segmentation and classification using 3-D range camera  

Science Journals Connector (OSTI)

This paper proposes a vision system using a 3-D range camera for scene segmentation and pedestrian classification. The system detects and segments objects in the foreground, measures their distances to the camera, and classifies them into pedestrians ... Keywords: 3-D range image segmentation, Assistive navigation, Feature extraction, Image segmentation evaluation, Object classification, Pedestrian classification, RGB-D image processing, Range/intensity image processing

Xue Wei; Son Lam Phung; Abdesselam Bouzerdoum

2014-01-01T23:59:59.000Z

255

Reconhecimento de modelos 3D em realidade aumentada móvel  

Science Journals Connector (OSTI)

In order to use Mobile Augmented Reality (AR) in a Participatory Design of a leisure area, the application equipAR! for iPad was developed. The purpose of this application is to enable the visualization and interaction in AR of 3D models of urban equipment ... Keywords: iPad application, mobile augmented reality, perception, recognition of 3D models, tangible augmented reality

Ana Regina M. Cuperschmid; Regina Coeli Ruschel; Ana Maria R. de G. Monteiro

2013-10-01T23:59:59.000Z

256

Patient specific 3D printed phantom for IMRT quality assurance  

Science Journals Connector (OSTI)

The purpose of this study was to test the feasibility of a patient specific phantom for patient specific dosimetric verification.Using the head and neck region of an anthropomorphic phantom as a substitute for an actual patient, a soft-tissue equivalent model was constructed with the use of a 3D printer. Calculated and measured dose in the anthropomorphic phantom and the 3D printed phantom was compared for a parallel-opposed head and neck field geometry to establish tissue equivalence. A nine-field IMRT plan was constructed and dose verification measurements were performed for the 3D printed phantom as well as traditional standard phantoms.The maximum difference in calculated dose was 1.8% for the parallel-opposed configuration. Passing rates of various dosimetric parameters were compared for the IMRT plan measurements; the 3D printed phantom results showed greater disagreement at superficial depths than other methods.A custom phantom was created using a 3D printer. It was determined that the use of patient specific phantoms to perform dosimetric verification and estimate the dose in the patient is feasible. In addition, end-to-end testing on a per-patient basis was possible with the 3D printed phantom. Further refinement of the phantom construction process is needed for routine use.

Eric D Ehler; Brett M Barney; Patrick D Higgins; Kathryn E Dusenbery

2014-01-01T23:59:59.000Z

257

A 3D radiative transfer framework: II. line transfer problems  

E-Print Network [OSTI]

Higher resolution telescopes as well as 3D numerical simulations will require the development of detailed 3D radiative transfer calculations. Building upon our previous work we extend our method to include both continuum and line transfer. We present a general method to calculate radiative transfer including scattering in the continuum as well as in lines in 3D static atmospheres. The scattering problem for line transfer is solved via means of an operator splitting (OS) technique. The formal solution is based on a long-characteristics method. The approximate $\\Lambda$ operator is constructed considering nearest neighbors {\\em exactly}. The code is parallelized over both wavelength and solid angle using the MPI library. We present the results of several test cases with different values of the thermalization parameter and two choices for the temperature structure. The results are directly compared to 1D spherical tests. With our current grid setup the interior resolution is much lower in 3D than in 1D, nevertheless the 3D results agree very well with the well-tested 1D calculations. We show that with relatively simple parallelization that the code scales to very large number of processors which is mandatory for practical applications. Advances in modern computers will make realistic 3D radiative transfer calculations possible in the near future. Our current code scales to very large numbers of processors, but requires larger memory per processor at high spatial resolution.

E. Baron; Peter H. Hauschildt

2007-03-16T23:59:59.000Z

258

Toward single cell traction microscopy within 3D collagen matrices  

SciTech Connect (OSTI)

Mechanical interaction between the cell and its extracellular matrix (ECM) regulates cellular behaviors, including proliferation, differentiation, adhesion, and migration. Cells require the three-dimensional (3D) architectural support of the ECM to perform physiologically realistic functions. However, current understanding of cell–ECM and cell–cell mechanical interactions is largely derived from 2D cell traction force microscopy, in which cells are cultured on a flat substrate. 3D cell traction microscopy is emerging for mapping traction fields of single animal cells embedded in either synthetic or natively derived fibrous gels. We discuss here the development of 3D cell traction microscopy, its current limitations, and perspectives on the future of this technology. Emphasis is placed on strategies for applying 3D cell traction microscopy to individual tumor cell migration within collagen gels. - Highlights: • Review of the current state of the art in 3D cell traction force microscopy. • Bulk and micro-characterization of remodelable fibrous collagen gels. • Strategies for performing 3D cell traction microscopy within collagen gels.

Hall, Matthew S. [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Long, Rong [Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G8 (Canada); Feng, Xinzeng [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Huang, YuLing [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Hui, Chung-Yuen [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Wu, Mingming, E-mail: mw272@cornell.edu [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States)

2013-10-01T23:59:59.000Z

259

3D printing facilitated scaffold-free tissue unit fabrication  

Science Journals Connector (OSTI)

Tissue spheroids hold great potential in tissue engineering as building blocks to assemble into functional tissues. To date, agarose molds have been extensively used to facilitate fusion process of tissue spheroids. As a molding material, agarose typically requires low temperature plates for gelation and/or heated dispenser units. Here, we proposed and developed an alginate-based, direct 3D mold-printing technology: 3D printing microdroplets of alginate solution into biocompatible, bio-inert alginate hydrogel molds for the fabrication of scaffold-free tissue engineering constructs. Specifically, we developed a 3D printing technology to deposit microdroplets of alginate solution on calcium containing substrates in a layer-by-layer fashion to prepare ring-shaped 3D hydrogel molds. Tissue spheroids composed of 50% endothelial cells and 50% smooth muscle cells were robotically placed into the 3D printed alginate molds using a 3D printer, and were found to rapidly fuse into toroid-shaped tissue units. Histological and immunofluorescence analysis indicated that the cells secreted collagen type I playing a critical role in promoting cell–cell adhesion, tissue formation and maturation.

Yu Tan; Dylan J Richards; Thomas C Trusk; Richard P Visconti; Michael J Yost; Mark S Kindy; Christopher J Drake; William Scott Argraves; Roger R Markwald; Ying Mei

2014-01-01T23:59:59.000Z

260

Optical Properties of 3D Printable Plastics in the THz Regime and their Application for 3D Printed THz Optics  

Science Journals Connector (OSTI)

We characterize the terahertz (THz) properties of several materials which can be used for fused material deposition 3D printing. We identify Polystyrene as a material which ... compromise between printability and...

S. F. Busch; M. Weidenbach; M. Fey…

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

3D Image Viz-Analysis Tools and V3D Development Hackathon, July 26 -August 8, 2010  

E-Print Network [OSTI]

- Hacking / Dinner at Bob's Pub #12;3D Image Viz-Analysis Tools and V3D Development Hackathon, July 26, Zongcai Ruan, and Luis Ibanez 12:00-1:00 pm Lunch 1:00 pm- Hacking / Dinner at Bob's Pub July 28, 29, 30 to talk about their problems. See schedule below) 12:00-1:00 pm Lunch 1:00 pm- Hacking / Dinner at Bob

Peng, Hanchuan

262

Ground Gravity Survey At Under Steamboat Springs Area (Warpinski, Et Al.,  

Open Energy Info (EERE)

Ground Gravity Survey At Under Steamboat Springs Area (Warpinski, Et Al., Ground Gravity Survey At Under Steamboat Springs Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Under Steamboat Springs Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Under Steamboat Springs Area Exploration Technique Ground Gravity Survey Activity Date Usefulness useful DOE-funding Unknown Notes This project consisted of (1) a 3-D surface seismic survey conducted in the fall of 2000, (2) a micro-seismic survey run from November 2000 to April 200 1, and (3) a gravity survey conducted in April and May 2001. The 3-D surface seismic data are still being processed at this time, but initial results indicate that there are two major lineations of high velocity

263

NEBU_3D: A fast pseudo-3D photoionization code for aspherical planetary nebulae and HII regions  

E-Print Network [OSTI]

We describe a pseudo-3D photoionization code, NEBU_3D and its associated visualization tool, VIS_NEB3D, which are able to easily and rapidly treat a wide variety of nebular geometries, by combining models obtained with a 1D photoionization code. We also present a tool, VELNEB_3D, which can be applied to the results of 1D or 3D photoionization codes to generate emission line profiles, position-velocity maps and 3D maps in any emission line by assuming an arbitrary velocity field. As examples of the capabilities of these new tools, we consider three very different theoretical cases. The first one is a blister HII region, for which we have also constructed a spherical model (the spherical impostor) which has exactly the same Hbeta surface brightness distribution as the blister model and the same ionizing star. The second example shows how complex line profiles can be obtained even with a simple expansion law if the nebula is bipolar and the slit slightly off-center. The third example shows different ways to produce line profiles that could be attributed to a turbulent velocity field while there is no turbulence in the model.

C. Morisset; G. Stasinska; M. Pena

2005-09-22T23:59:59.000Z

264

2D?3D polycatenated and 3D?3D interpenetrated metal–organic frameworks constructed from thiophene-2,5-dicarboxylate and rigid bis(imidazole) ligands  

SciTech Connect (OSTI)

Hydrothermal reactions of rigid 1,4-bis(imidazol-1-yl)benzene (dib) and 1,4-bis(imidazol-1-yl)-2,5-dimethylbenzene (dimb) with deprotonated thiophene-2,5-dicarboxylic acid (H{sub 2}tdc) in the presence of Zn(II) and Cd(II) salts in H{sub 2}O produced three new metal–organic frameworks, namely, [Zn(µ-tdc)(H{sub 2}O)(µ-dib)]{sub n} (1), [Cd(µ-tdc)(H{sub 2}O)(µ-dib)]{sub n} (2), and ([Cd{sub 2}(µ{sub 3}-tdc){sub 2}(µ-dimb){sub 2}]·(H{sub 2}O)){sub n}(3). These MOFs were characterized by FT-IR spectroscopy, elemental, thermal (TG, DTA, DTG and DSC), and single-crystal X-ray diffraction analyses. Isomorphous complexes 1 and 2 reveal polycatenated 2D+2D?3D framework based on an undulated (4,4)-sql layer. Complex 3 exhibits a new 4-fold interpenetrating 3D framework with the point symbol of 6{sup 6}. Molecular simulations were used to assess the potentials of the complexes for H{sub 2} storage application. Moreover, these coordination polymers exhibit blue fluorescent emission bands in the solid state at room temperature. - Graphical abstract: In this study, hydrothermal reactions of rigid 1,4-bis(imidazol-1-yl)benzene (dib) and 1,4-bis(imidazol-1-yl)-2,5-dimethylbenzene (dimb) with deprotonated thiophene-2,5-dicarboxylic acid (H{sub 2}tdc) in the presence of Zn(II) and Cd(II) salts in H{sub 2}O produced three new metal–organic frameworks. Isomorphous complexes 1 and 2 reveal polycatenated 2D+2D?3D framework based on an undulated (4,4)-sql layer. Complex 3 exhibits a new 4-fold interpenetrating 3D framework with the point symbol of 6{sup 6}. Molecular simulations were used to assess the potentials of the complexes for H{sub 2} storage application. These coordination polymers exhibit blue fluorescent emission bands in the solid state at room temperature. Display Omitted - Highlights: • Complexes 1 and 2 display polycatenated 2D+2D?3D framework. • Complex 3 exhibits a new 4-fold interpenetrating 3D framework. • Complex 1 adsorbs the highest amount of H{sub 2} at 100 bar and 298 K. • Complexes display blue fluorescent emission bands.

Erer, Hakan [Department of Chemistry, Faculty of Arts and Sciences, Eski?ehir Osmangazi University, 26480 Eski?ehir (Turkey); Ye?ilel, Okan Zafer, E-mail: yesilel@ogu.edu.tr [Department of Chemistry, Faculty of Arts and Sciences, Eski?ehir Osmangazi University, 26480 Eski?ehir (Turkey); Ar?c?, Mürsel [Department of Chemistry, Faculty of Arts and Sciences, Eski?ehir Osmangazi University, 26480 Eski?ehir (Turkey); Keskin, Seda [Department of Chemical and Biological Engineering, Koç University, ?stanbul (Turkey); Büyükgüngör, Orhan [Department of Physics, Faculty of Arts and Sciences, Ondokuz May?s University, 55139 Samsun (Turkey)

2014-02-15T23:59:59.000Z

265

Enhanced 2D/3D Approaches Based on Relevance Index for 3D-Shape Retrieval Mohamed Chaouch, Anne Verroust-Blondet  

E-Print Network [OSTI]

Enhanced 2D/3D Approaches Based on Relevance Index for 3D-Shape Retrieval Mohamed Chaouch, Anne.Chaouch,Anne.Verroust}@inria.fr Shape Modeling International'06, Matsushima, June 14-16, 2006 Abstract We present a new approach for 3D model indexing and retrieval using 2D/3D shape descriptors based on silhou- ettes or depth-buffer images

Paris-Sud XI, Université de

266

SunFloor 3D: A Tool for Networks on Chip Topology Synthesis for 3D Systems on Ciprian Seiculescu , Srinivasan Murali  

E-Print Network [OSTI]

SunFloor 3D: A Tool for Networks on Chip Topology Synthesis for 3D Systems on Chips Ciprian an efficient Network on Chip (NoC) intercon- nect for a 3D SoC that not only meets the application performance constraints, but also the constraints imposed by the 3D technology, is a significant challenge. In this work

De Micheli, Giovanni

267

Large Scale Computing Requirements for Basic Energy Sciences (An BES / ASCR / NERSC Workshop) Hilton Washington DC/Rockville Meeting Center, Rockville MD 3D Geophysical Imaging  

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

Requirements Requirements for Basic Energy Sciences (An BES / ASCR / NERSC Workshop) Hilton Washington DC/Rockville Meeting Center, Rockville MD 3D Geophysical Modeling and Imaging G. A. Newman Lawrence Berkeley National Laboratory February 9 - 10 , 2010 Talk Outline * SEAM Geophysical Modeling Project - Its Really Big! * Geophysical Imaging (Seismic & EM) - Its 10 to 100x Bigger! - Reverse Time Migration - Full Waveform Inversion - 3D Imaging & Large Scale Considerations - Offshore Brazil Imaging Example (EM Data Set) * Computational Bottlenecks * Computing Alternatives - GPU's & FPGA's - Issues Why ? So that the resource industry can tackle grand geophysical challenges (Subsalt imaging, land acquisition, 4-D, CO2, carbonates ......) SEAM Mission Advance the science and technology of applied

268

Propagation in 3D of microwaves through density perturbations  

E-Print Network [OSTI]

Simulations using 3D and 2D full-wave codes have shown that edge filaments in tokamak plasmas can significantly affect the propagation of microwaves across a broad frequency spectrum, resulting in scattering angles of up to 46 degrees. Parameter scans were carried out for density perturbations comparable in width and amplitude to MAST filaments and the effect on the measured emission was calculated. 3D effects were discovered in the case of an obliquely incident beam. In general, the problem of EM propagation past wavelength-sized 3D inhomogeneities is not well understood, yet is of importance for both heating and diagnostic applications in the electron cyclotron frequency range for tokamaks, as well as atmospheric physics. To improve this understanding, a new cold-plasma code, EMIT-3D, was written to extend full-wave microwave simulations in magnetized plasmas to 3D, and make comparisons to the existing 2D code IPF-FDMC. This work supports MAST experiments using the SAMI diagnostic to image microwave emissio...

Williams, T R N; O'Brien, M R; Vann, R G L

2013-01-01T23:59:59.000Z

269

Advanced 3D Sensing and Visualization System for Unattended Monitoring  

SciTech Connect (OSTI)

The purpose of this project was to create a reliable, 3D sensing and visualization system for unattended monitoring. The system provides benefits for several of Sandia's initiatives including nonproliferation, treaty verification, national security and critical infrastructure surety. The robust qualities of the system make it suitable for both interior and exterior monitoring applications. The 3D sensing system combines two existing sensor technologies in a new way to continuously maintain accurate 3D models of both static and dynamic components of monitored areas (e.g., portions of buildings, roads, and secured perimeters in addition to real-time estimates of the shape, location, and motion of humans and moving objects). A key strength of this system is the ability to monitor simultaneous activities on a continuous basis, such as several humans working independently within a controlled workspace, while also detecting unauthorized entry into the workspace. Data from the sensing system is used to identi~ activities or conditions that can signi~ potential surety (safety, security, and reliability) threats. The system could alert a security operator of potential threats or could be used to cue other detection, inspection or warning systems. An interactive, Web-based, 3D visualization capability was also developed using the Virtual Reality Modeling Language (VRML). The intex%ace allows remote, interactive inspection of a monitored area (via the Internet or Satellite Links) using a 3D computer model of the area that is rendered from actual sensor data.

Carlson, J.J.; Little, C.Q.; Nelson, C.L.

1999-01-01T23:59:59.000Z

270

AUTOMATED MODELING OF 3D BUILDING ROOFS USING IMAGE AND LIDAR DATA  

E-Print Network [OSTI]

AUTOMATED MODELING OF 3D BUILDING ROOFS USING IMAGE AND LIDAR DATA N. Demir* , E. Baltsavias, Detection, 3D Modelling ABSTRACT: In this work, an automated approach for 3D building roof modelling on the 3D building roof modelling. Buildings have a critical role for 3D city models, decision support

Schindler, Konrad

271

3 July 2003 HIRES3D -ITC Research Seminar -Robert Hack 1 HIGH RESOLUTION REMOTE SENSING  

E-Print Network [OSTI]

3 July 2003 HIRES3D - ITC Research Seminar - Robert Hack 1 HIRES3D HIGH RESOLUTION REMOTE SENSING FOR 3D GROUND MODELING AND CLASSIFICATION ITC Research Seminar, 3 July 2003 Robert Hack International Seminar - Robert Hack 2 HIRES3D HIGH RESOLUTION REMOTE SENSING FOR 3D GROUND MODELING AND CLASSIFICATION

Hack, Robert

272

A novel framework for exploring 3-D FPGAs with heterogeneous interconnect fabric  

Science Journals Connector (OSTI)

A heterogeneous interconnect architecture can be a useful approach for the design of 3-D FPGAs. A methodology to investigate heterogeneous interconnection schemes for 3-D FPGAs under different 3-D fabrication technologies is proposed. Application of ... Keywords: 3-D integration, 3-D reconfigurable architectures, FPGAs, design framework, interconnection fabric

Kostas Siozios; Vasilis F. Pavlidis; Dimitrios Soudris

2012-03-01T23:59:59.000Z

273

Inverse Energy Transfer  

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

which is unstable. It saturates by transfer to a separate, damped eigenmode (i.e., a subcritical spectrum of damped waves). Inverse energy transfer is carried by three-wave...

274

A heightened radiosensitivity of stromal fibroblasts in 3D matrix  

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

heightened radiosensitivity of stromal fibroblasts in 3D matrix heightened radiosensitivity of stromal fibroblasts in 3D matrix X. Liu, K. McHenry & Z. Yuan. Department of Genetics and Complex Diseases, Harvard School of Public Health, Boston, MA 02115 Our recent study suggested that stromal fibroblasts can sensitize cocultured epithelial cells to radiation exposure. Since stromal fibroblasts exhibit highly elongated cytoplasmic extensions (pseudopodia), which as shown in our previous study are essential to guide neighboring epithelial cells to form branching ducts, we asked whether radiation could interfere with the formation of fibroblasts' pseudopodium, which would then impair their ability to structurally and functionally support the associated epithelial cells. For this, HMFs were seeded in 3D and were either mock-treated or irradiated 24 h

275

Virtual Frog Dissection: Interactive 3D Graphics Via the Web  

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

Dissection: Interactive 3D Graphics Via the Web Dissection: Interactive 3D Graphics Via the Web David Robertson, William Johnston, and Wing Nip Imaging and Distributed Computing Group Lawrence Berkeley National Laboratory Published in Proceedings, The Second International WWW Conference '94: Mosaic and the Web, Chicago, IL (1994). Hyperlinks have been updated periodically to replace stale links. ABSTRACT We have developed a set of techniques for providing interactive 3D graphics via the World Wide Web (WWW) as part of the ``Whole Frog'' project [ 1 ]. We had three goals: (1) to provide K-12 biology students with the ability to explore the anatomy of a frog with a virtual dissection tool; (2) to show the feasibility of interactive visualization over the Web; and (3) to show the possibility for the Web and its associated browsers to be an

276

3D Visualization of Water Transport in Ferns  

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

3D Visualization of Water Transport 3D Visualization of Water Transport in Ferns 3D Visualization of Water Transport in Ferns Print Monday, 08 April 2013 00:00 Plants transport water through elongated cells called xylem. However, in trees such as eucalyptus or redwood, the xylem tissue-better known as wood-bears the weight of the branches and leaves, giving rise to the often massive canopies characteristic of these species. We know much about water transport in woody plants, but considerably less about primitive plants such as ferns. Not only have ferns played an important role in the evolution of trees and shrubs but collectively, these plant forms are a fascinating study in contrasts because ferns use xylem strictly for water transport, leaving structural support to other tissues. Given the global distribution and impressive diversity of ferns, how has their xylem evolved to deal with variable habitat water availability?

277

A 3-D Link between Antibiotic Resistance and Brain Disease  

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

A 3-D Link between Antibiotic Resistance and Brain Disease A 3-D Link between Antibiotic Resistance and Brain Disease The story of what makes certain types of bacteria resistant to a specific antibiotic has a sub-plot that gives insight into the cause of a rare form of brain degeneration among children, according to investigators at St. Jude Children's Research Hospital. The story takes a twist as key differences among the structures of its main molecular characters disappear and reappear as they are assembled in the cell. The story is based on a study of the three-dimensional (3-D) structure of an enzyme called pantothenate kinase, which triggers the first step in the production coenzyme A (CoA), a molecule that is indispensable to all forms of life. Enzymes are proteins that speed up biochemical reactions. CoA plays a pivotal role in the cells' ability to extract energy from fatty

278

Building Energy Software Tools Directory: Look3D  

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

Look3D Look3D Look3D logo. A Windows program that creates three-dimensional, full-color surface plots from columnar data. These surface plots can be rotated and customized. Keywords three-dimensional, full-color surface plots from columnar data, energy-use data Validation/Testing N/A Expertise Required No special expertise required. Users International. Audience Anyone analyzing time series data. Input ASCII space delimited numeric files. Input should have time stamp for maximum usability. Output Visualization on screen. Computer Platform Windows 3.1 or higher. Programming Language Visual C++ (source not available). Strengths Particularly useful for visualizing load profile changes over time. Weaknesses N/A Contact Company: Energy Systems Laboratory Address: Building Energy Analysis Division

279

ARM - Publications: Science Team Meeting Documents: Application of 3D  

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

Application of 3D Radiative Transfer to Mountains Application of 3D Radiative Transfer to Mountains Chen, Yong UCLA Hall, Alex University of California, Los Angeles Liou, Kuo-Nan UCLA A large part of the land surface is not flat, but vertically structured. In mountain terrain, accurate calculations of the net radiation for slopes of varying gradient and orientation are of considerable importance in determining the energy budget of the surface. In order to evaluate the surface variations of total solar irradiance, it is necessary to calculate the direct, diffuse and terrain-reflected components. A 3D Monte Carlo radiative transfer model has been developed and applied to mountain surfaces to study the diurnal and seasonal changes in surface fluxes by choosing 9 different solar zenith angles, including noon, sunrise+1/2 hour,

280

3D Tomography of MHD Fluctuations in the H-1NF Heliac  

E-Print Network [OSTI]

A 3D tomographic reconstruction technique which does not rely on a set of radial basis functions is described for inversion of a set of limited-angle high-resolution 2D visible light emission projections (extended in the vertical and toroidal directions) of global MHD eigenmodes in the H-1NF heliac. This paper deals with some of the features and challenges that will arise in the application of tomographic imaging systems to fusion reactors, especially the strong shaping of optimised stellarator/heliotron configurations, and limited access in all types. The fluctuations are represented as a finite sum of Fourier modes characterised by toroidal and poloidal mode numbers having fixed amplitude and phase in a set of nested cylindrical flux volumes in Boozer space. The amplitudes and phases are calculated using iterative tomographic inversion techniques such as ART, SIRT and standard linear least-squares methods. The tomography is applied to synchronous camera images of singly charged carbon impurity ion emission ...

Haskey, S R; Seiwald, B; Howard, J

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Inversion of gravity data using a binary formulation  

Science Journals Connector (OSTI)

......that is a snapshot of the evolutionary process. Mapping the evolution of the models at...Gulf of Mexico, 70th Ann. Internat. Mtg.Soc. Expl. Geophys.Expanded Abstracts...gradiometer datain71st Ann. Internat. Mtg., Soc. Expl. Geophys.Expanded Abstracts......

Richard A. Krahenbuhl; Yaoguo Li

2006-11-01T23:59:59.000Z

282

RELAP5-3D Code Validation for RBMK Phenomena  

SciTech Connect (OSTI)

The RELAP5-3D thermal-hydraulic code was assessed against Japanese Safety Experiment Loop (SEL) and Heat Transfer Loop (HTL) tests. These tests were chosen because the phenomena present are applicable to analyses of Russian RBMK reactor designs. The assessment cases included parallel channel flow fluctuation tests at reduced and normal water levels, a channel inlet pipe rupture test, and a high power, density wave oscillation test. The results showed that RELAP5-3D has the capability to adequately represent these RBMK-related phenomena.

Fisher, James Ebberly

1999-09-01T23:59:59.000Z

283

RELAP5-3D code validation for RBMK phenomena  

SciTech Connect (OSTI)

The RELAP5-3D thermal-hydraulic code was assessed against Japanese Safety Experiment Loop (SEL) and Heat Transfer Loop (HTL) tests. These tests were chosen because the phenomena present are applicable to analyses of Russian RBMK reactor designs. The assessment cases included parallel channel flow fluctuation tests at reduced and normal water levels, a channel inlet pipe rupture test, and a high power, density wave oscillation test. The results showed that RELAP5-3D has the capability to adequately represent these RBMK-related phenomena.

Fisher, J.E.

1999-09-01T23:59:59.000Z

284

3D Flat Holography: Entropy and Logarithmic Corrections  

E-Print Network [OSTI]

We compute the leading corrections to the Bekenstein-Hawking entropy of the Flat Space Cosmological (FSC) solutions in 3D flat spacetimes, which are the flat analogues of the BTZ black holes in AdS3. The analysis is done by a computation of density of states in the dual 2D Galilean Conformal Field Theory and the answer obtained by this matches with the limiting value of the expected result for the BTZ inner horizon entropy as well as what is expected for a generic thermodynamic system. Along the way, we also develop other aspects of holography of 3D flat spacetimes.

Arjun Bagchi; Rudranil Basu

2013-12-19T23:59:59.000Z

285

Polarization Singularities in 2D and 3D Speckle Fields  

Science Journals Connector (OSTI)

The 3D structure of randomly polarized light fields is exemplified by its polarization singularities: lines along which the polarization is purely circular (C lines) and surfaces on which the polarization is linear (L surfaces). We visualize these polarization singularities experimentally in vector laser speckle fields, and in numerical simulations of random wave superpositions. Our results confirm previous analytical predictions [M.?R. Dennis, Opt. Commun. 213, 201 (2002)] regarding the statistical distribution of types of C points and relate their 2D properties to their 3D structure.

Florian Flossmann; Kevin O‘Holleran; Mark R. Dennis; Miles J. Padgett

2008-05-22T23:59:59.000Z

286

Modelling Gaia CCD pixels with Silvaco 3D engineering software  

E-Print Network [OSTI]

Gaia will only achieve its unprecedented measurement accuracy requirements with detailed calibration and correction for radiation damage. We present our Silvaco 3D engineering software model of the Gaia CCD pixel and two of its applications for Gaia: (1) physically interpreting supplementary buried channel (SBC) capacity measurements (pocket-pumping and first pixel response) in terms of e2v manufacturing doping alignment tolerances; and (2) deriving electron densities within a charge packet as a function of the number of constituent electrons and 3D position within the charge packet as input to microscopic models being developed to simulate radiation damage.

Seabroke, G M; Hopkinson, G; Burt, D; Robbins, M; Holland, A

2010-01-01T23:59:59.000Z

287

Evolving spherical boson stars on a 3D cartesian grid  

E-Print Network [OSTI]

A code to evolve boson stars in 3D is presented as the starting point for the evolution of scalar field systems with arbitrary symmetries. It was possible to reproduce the known results related to perturbations discovered with 1D numerical codes in the past, which include evolution of stable and unstable equilibrium configurations. In addition, the apparent and event horizons masses of a collapsing boson star are shown for the first time. The present code is expected to be useful at evolving possible sources of gravitational waves related to scalar field objects and to handle toy models of systems perturbed with scalar fields in 3D.

F. Siddhartha Guzman

2004-07-14T23:59:59.000Z

288

STELLOPT Modeling of the 3D Diagnostic Response in ITER  

SciTech Connect (OSTI)

The ITER three dimensional diagnostic response to an n=3 resonant magnetic perturbation is modeled using the STELLOPT code. The in-vessel coils apply a resonant magnetic perturbation (RMP) fi eld which generates a 4 cm edge displacement from axisymmetry as modeled by the VMEC 3D equilibrium code. Forward modeling of flux loop and magnetic probe response with the DIAGNO code indicates up to 20 % changes in measured plasma signals. Simulated LIDAR measurements of electron temperature indicate 2 cm shifts on the low field side of the plasma. This suggests that the ITER diagnostic will be able to diagnose the 3D structure of the equilibria.

Lazerson, Samuel A

2013-05-07T23:59:59.000Z

289

School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles  

E-Print Network [OSTI]

School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles Lead: Lharne Shaw 3D printing tile production. It will also assess the feasibility of introducing a 3D slip printing system into both

Evans, Paul

290

3D Single Particle Tracking Spectroscopy and Nanoparticles for Interrogating Complex Systems  

E-Print Network [OSTI]

2.4 Real-time 3D single-particle trackingnanoparticles using real-time 3D single-particle tracking. (ˆ axis (Ref. [124]). (b) A 3D representation of detected

Montiel, Daniel

2012-01-01T23:59:59.000Z

291

3D Human Motion Tracking with a Coordinated Mixture of Factor Analyzers  

E-Print Network [OSTI]

evaluation of video-based 3d person tracking. In IEEELee, C. -S. (2004). Inferring 3D body pose from silhouettesMonocular tracking of 3D human motion with a coordinated

Li, Rui; Tian, Tai-Peng; Sclaroff, Stan; Yang, Ming-Hsuan

2010-01-01T23:59:59.000Z

292

A 3D Model for Ion Beam Formation and Transport Simulation  

E-Print Network [OSTI]

g magnet section. A. Solution of the 3D Poisson Equation inexcellent. B. Solution of the 3D Poisson Equation in Frenet-of distance from the 3D simulation and 2D simulation for a

Qiang, J.; Todd, D.; Leitner, D.

2006-01-01T23:59:59.000Z

293

3D global and regional patterns of human fetal subplate growth determined in utero  

E-Print Network [OSTI]

010-0286-5 ORIGINAL ARTICLE 3D global and regional patternsof multislice MRI for 3D in utero fetal brain imagethe developing brain anatomy in 3D from in utero imaging. We

2011-01-01T23:59:59.000Z

294

3D culture models of normal and malignant breast epithelial cells  

E-Print Network [OSTI]

3D culture models of normal and malignant breast epithelialcells; Lee et al. 3D culture models of normal and malignantFor correspondence: mjbissell@lbl.gov 3D culture models of

Lee, Genee Y.; Kenny, Paraic A.; Lee, Eva H.; Bissell, Mina J.

2006-01-01T23:59:59.000Z

295

A 3D Ultrasound Study of Sinus Tract Formation in Hidradenitis Suppurativa  

E-Print Network [OSTI]

classified as Hurley 1. B. 3D ultrasound image demonstratesclassified as Hurley 1. B. and C. 3D ultrasounds demonstrateas Hurley 2. B. and C. 3D ultrasound images show involvement

Wortsman, Ximena; Jemec, Gregor

2013-01-01T23:59:59.000Z

296

2D and 3D Acoustic Source Localization Using the AML Algorithm and ENSBox Nodes  

E-Print Network [OSTI]

Networked Sensing 2D and 3D Acoustic Source Localizationhairs, median red square) 3D bearing estimates: (azimuth,1.37,1.52) (2.38,1.82) Node 153 3D AML performance UCLA –

2007-01-01T23:59:59.000Z

297

The quaternion Bingham Distribution, 3D object detection, and dynamic manipulation  

E-Print Network [OSTI]

Over the past few years, the field of robotic computer vision has undergone a 3-D revolution. One of the biggest challenges in dealing with 3-D geometry lies in appropriately handling 3-D rotational data. To specify "where" ...

Glover, Jared Marshall

2014-01-01T23:59:59.000Z

298

Wire Congestion And Thermal Aware 3D Global Placement  

E-Print Network [OSTI]

Wire Congestion And Thermal Aware 3D Global Placement Karthik Balakrishnan, Vidit Nanda, Siddharth compro- mising total wirelength and via count. Our approach consists of two phases. First, we use a multi and global routing for global wire congestion and maximum temperature reduction. Our experimental results

Lim, Sung Kyu

299

A 3D numerical model for Kepler's supernova remnant  

Science Journals Connector (OSTI)

......28, 1428 Buenos Aires, Argentina 3 Facultad de Ciencias Exactas...Universidad de Buenos Aires, Argentina We present new 3D numerical...density of 103 and an explosion energy of 7-1050-erg. The obtained...the gas pressure. The total energy density E is given by where......

J. C. Toledo-Roy; A. Esquivel; P. F. Velázquez; E. M. Reynoso

2014-01-01T23:59:59.000Z

300

3D model-based tracking for UAV indoor localisation  

E-Print Network [OSTI]

3D model-based tracking for UAV indoor localisation C´eline Teuli`ere, Eric Marchand, Laurent Eck set toward the peaks of the distribution. Motivated by the UAV indoor localisation problem where GPS signal is not available, we validate the algorithm on real image sequences from UAV flights. Index Terms

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "3d gravity inversion" 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

TCAUP FabLab 3D PRINTING ORDER FORM  

E-Print Network [OSTI]

TCAUP FabLab 3D PRINTING ORDER FORM: UNIQ NAME: Zcorp 400/310 10"x 8"x 8" ABS 8"x 8"x 12" or 10"x://www.taubmancollege.umich.edu/digital_tech/digital_fablab/ * ZCorp members below .125" are printed at student's own risk and expense. (reasonable .125"breakage

Kamat, Vineet R.

302

Extra Dimensions: 3D and Time in PDF Documentation  

SciTech Connect (OSTI)

High energy physics is replete with multi-dimensional information which is often poorly represented by the two dimensions of presentation slides and print media. Past efforts to disseminate such information to a wider audience have failed for a number of reasons, including a lack of standards which are easy to implement and have broad support. Adobe's Portable Document Format (PDF) has in recent years become the de facto standard for secure, dependable electronic information exchange. It has done so by creating an open format, providing support for multiple platforms and being reliable and extensible. By providing support for the ECMA standard Universal 3D (U3D) file format in its free Adobe Reader software, Adobe has made it easy to distribute and interact with 3D content. By providing support for scripting and animation, temporal data can also be easily distributed to a wide audience. In this talk, we present examples of HEP applications which take advantage of this functionality. We demonstrate how 3D detector elements can be documented, using either CAD drawings or other sources such as GEANT visualizations as input. Using this technique, higher dimensional data, such as LEGO plots or time-dependent information can be included in PDF files. In principle, a complete event display, with full interactivity, can be incorporated into a PDF file. This would allow the end user not only to customize the view and representation of the data, but to access the underlying data itself.

Graf, Norman A.; /SLAC

2011-11-10T23:59:59.000Z

303

Large area 3D helical photonic crystals A. K. Rauba)  

E-Print Network [OSTI]

.1116/1.3640756] I. INTRODUCTION Chiral, coil-spring-like helical photonic crystal structures are useful for optical the helical lattice periodicity and coil pitch of the 3D PhC. This technique con- sists of a simple two

New Mexico, University of

304

Oct 8, 2004 Segmentation of 3D Meshes  

E-Print Network [OSTI]

matrix W using exponential kernel 2 , 2/ , ji eji D W - = 2/12/1 -- = WLLO L : diagonal matrix of W 'sOct 8, 2004 sfsdfsfd 1 Segmentation of 3D Meshes through Spectral Clustering Rong Liu, Hao Zhang Gr

Toronto, University of

305

Photo tourism: exploring photo collections in 3D  

Science Journals Connector (OSTI)

We present a system for interactively browsing and exploring large unstructured collections of photographs of a scene using a novel 3D interface. Our system consists of an image-based modeling front end that automatically computes the viewpoint of each ... Keywords: image-based modeling, image-based rendering, photo browsing, structure from motion

Noah Snavely; Steven M. Seitz; Richard Szeliski

2006-07-01T23:59:59.000Z

306

Coming to grips: 3D printing for accessibility  

Science Journals Connector (OSTI)

In this demonstration, we discuss a case study involving a student with limited hand motor ability and the process of exploring consumer grade, Do-It-Yourself (DIY) technology in order to create a viable assistive solution. This paper extends our previous ... Keywords: 3d printing, assistive technology, children, developmental disability, digital fabrication, motor impairment, rapid prototyping, special education

Erin Buehler, Amy Hurst, Megan Hofmann

2014-10-01T23:59:59.000Z

307

3D object recognition, localization and treatment of rumex  

E-Print Network [OSTI]

Aim of the project · Build reliable and robust real time plant detection system.y · For a plant:· Short problem description: ­ Weed recognition these days. ­ Vehicle, measurement principle, etc detection only 3D point cloud data will be used. ­ Color images are to be analyzed too, after segmentation

308

8, 42674308, 2008 3-D retrieval of cloud  

E-Print Network [OSTI]

ACPD 8, 4267­4308, 2008 3-D retrieval of cloud particle profiles T. Zinner et al. Title Page.0 License. Atmospheric Chemistry and Physics Discussions Remote sensing of cloud sides of deep convection: towards a three-dimensional retrieval of cloud particle size profiles T. Zinner 1,2 , A. Marshak 1 , S

Paris-Sud XI, Université de

309

Computation of optimized arrays for 3-D electrical imaging surveys  

Science Journals Connector (OSTI)

......the resistivity of the water (rho 0 = 13.8 omegam...from measurements of the water resistivity) within...to 10-000 times the water resistivity for the material...imaging at a heterogeneous remediation site. Geophysics (2004...A.J. , et al. 3D ground model development for......

M. H. Loke; P. B. Wilkinson; S. S. Uhlemann; J. E. Chambers; L. S. Oxby

2014-01-01T23:59:59.000Z

310

A data-mapping approach to 3-D wavefield redatuming  

Science Journals Connector (OSTI)

......application of the redatuming process to 3-D data acquired by conventional...to formulate the redatuming process in terms of a data mapping problem...integral expression describing the process. Only a 2-D integral needs...Geophys., 74th Ann. Internat. Mtg., pp. 2024-2027. Alkhalifah......

S. Tegtmeier-Last; A. Gisolf; D. J. Verschuur

2008-02-01T23:59:59.000Z

311

Considerations for Targets in 3D Pointing Experiments  

E-Print Network [OSTI]

Pointing at three-dimensional objects to select them is a fundamental task in 3D user interfaces' law [2] and the ISO 9241-9 standard [6]. The ISO standard contributes the measure of throughput, which 9241-9 ACM Classification Keywords H.5.2. User Interfaces: Evaluation/methodology. Introduction

Stürzlinger, Wolfgang

312

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

313

Studies of the 3D surface roughness height  

SciTech Connect (OSTI)

Nowadays nano-coatings occupy more and more significant place in technology. Innovative, functional coatings acquire new aspects from the point of view of modern technologies, considering the aggregate of physical properties that can be achieved manipulating in the production process with the properties of coatings’ surfaces on micro- and nano-level. Nano-coatings are applied on machine parts, friction surfaces, contacting parts, corrosion surfaces, transparent conducting films (TCF), etc. The equipment available at present for the production of transparent conducting oxide (TCO) coatings with highest quality is based on expensive indium tin oxide (ITO) material; therefore cheaper alternatives are being searched for. One such offered alternative is zink oxide (ZnO) nano-coatings. Evaluating the TCF physical and mechanical properties and in view of the new ISO standard (EN ISO 25178) on the introduction of surface texture (3D surface roughness) in the engineering calculations, it is necessary to examine the height of 3D surface roughness, which is one of the most significant roughness parameters. The given paper studies the average values of 3D surface roughness height and the most often applied distribution laws are as follows: the normal distribution and Rayleigh distribution. The 3D surface is simulated by a normal random field.

Avisane, Anita; Rudzitis, Janis; Kumermanis, Maris [Institute of Mechanical Engineering, Riga Technical University, Ezermalas str. 6k, Riga (Latvia)

2013-12-16T23:59:59.000Z

314

Liver vasculature refinement with multiple 3D structuring element shapes  

Science Journals Connector (OSTI)

Delineating anatomical structures and other regions of interest is an important component of assisting and automating specific diagnostic, radiological, and surgical tasks. In this paper, a segmentation approach for liver region delineation is proposed, ... Keywords: 3D structuring element, Hysteresis thresholding, Mathematical morphology, Region growing, Texture analysis, Vessel tree refinement

Do-Yeon Kim

2014-08-01T23:59:59.000Z

315

Electromagnetic Waves Propagation in 3D Plasma Configurations  

E-Print Network [OSTI]

Electromagnetic Waves Propagation in 3D Plasma Configurations Pavel Popovich, W. Anthony Cooper such method is based on heating the plasma by electromagnetic waves with various frequencies. Wave behaviour that allows to simulate mode-conversion effects. The wave equation is formulated in terms of electromagnetic

316

3D Tomography from Few Projections in Experimental Fluid Dynamics  

E-Print Network [OSTI]

3D Tomography from Few Projections in Experimental Fluid Dynamics Stefania Petra, Andreas Schr projections due to both limited optical access to wind and water tunnels and cost S. Petra, C. Schn projection data. The latter are the pixel entries in the recorded 2D images that represent the integration

Schnörr, Christoph

317

Propagation Beam Consideration for 3D THz Computed Tomography  

E-Print Network [OSTI]

Propagation Beam Consideration for 3D THz Computed Tomography B. Recur, 1, J.P. Guillet, 2 I. Manek, "Refraction losses in terahertz computed tomography," Opt. Commun. 283, 2050­2055 (2010). 8. S. Nadar, H, "Accelerated image reconstruction using ordered subsets of projection data," IEEE Trans. Med. Imaging 13, 601

Boyer, Edmond

318

RELAP5-3D Developer Guidelines and Programming Practices  

SciTech Connect (OSTI)

Our ultimate goal is to create and maintain RELAP5-3D as the best software tool available to analyze nuclear power plants. This begins with writing excellent programming and requires thorough testing. This document covers development of RELAP5-3D software, the behavior of the RELAP5-3D program that must be maintained, and code testing. RELAP5-3D must perform in a manner consistent with previous code versions with backward compatibility for the sake of the users. Thus file operations, code termination, input and output must remain consistent in form and content while adding appropriate new files, input and output as new features are developed. As computer hardware, operating systems, and other software change, RELAP5-3D must adapt and maintain performance. The code must be thoroughly tested to ensure that it continues to perform robustly on the supported platforms. The coding must be written in a consistent manner that makes the program easy to read to reduce the time and cost of development, maintenance and error resolution. The programming guidelines presented her are intended to institutionalize a consistent way of writing FORTRAN code for the RELAP5-3D computer program that will minimize errors and rework. A common format and organization of program units creates a unifying look and feel to the code. This in turn increases readability and reduces time required for maintenance, development and debugging. It also aids new programmers in reading and understanding the program. Therefore, when undertaking development of the RELAP5-3D computer program, the programmer must write computer code that follows these guidelines. This set of programming guidelines creates a framework of good programming practices, such as initialization, structured programming, and vector-friendly coding. It sets out formatting rules for lines of code, such as indentation, capitalization, spacing, etc. It creates limits on program units, such as subprograms, functions, and modules. It establishes documentation guidance on internal comments. The guidelines apply to both existing and new subprograms. They are written for both FORTRAN 77 and FORTRAN 95. The guidelines are not so rigorous as to inhibit a programmer’s unique style, but do restrict the variations in acceptable coding to create sufficient commonality that new readers will find the coding in each new subroutine familiar. It is recognized that this is a “living” document and must be updated as languages, compilers, and computer hardware and software evolve.

Dr. George L Mesina

2014-03-01T23:59:59.000Z

319

Manual 3D Lattice-Boltzmann Parallel code Author: Mike Sukop, Danny Thorne and Haibo Huang  

E-Print Network [OSTI]

Manual ­ 3D Lattice-Boltzmann Parallel code Author: Mike Sukop, Danny Thorne and Haibo Huang Manual ­ 3D Lattice-Boltzmann Parallel code

Sukop, Mike

320

3D Printing for Rapid Manufacturing: Study of Dimensional and Geometrical Accuracy  

Science Journals Connector (OSTI)

3D printing (3DP) is one of the innovative ... an important role in educating product design and 3D modeling because it helps students/designer to...

Hirpa G. Lemu; Safet Kurtovic

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Supplemental Document: Interface Techniques for 3D Control of Spatial Keyframing  

E-Print Network [OSTI]

Supplemental Document: Interface Techniques for 3D Control of Spatial Keyframing Igor Mordatch. Figure 4: Two photographs of character poses created interactively using our 3D tracking interface

Toronto, University of

322

An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels for Enhancing  

E-Print Network [OSTI]

An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels results in 3D printing and steerable needle motion planning to create customized implants containing

North Carolina at Chapel Hill, University of

323

Impact of 3D printing on global supply chains by 2020 .  

E-Print Network [OSTI]

??This thesis aims to quantitatively estimate the potential impact of 3D Printing on global supply chains. Industrial adoption of 3D Printing has been increasing gradually… (more)

Bodla, Muhammad Raheel

2014-01-01T23:59:59.000Z

324

E-Print Network 3.0 - absorbed dose 3d Sample Search Results  

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

unit absorbed dose. Conclusions Polymer gel dosimetry offers a method of acquiring 3D... -dimensional (3D) dose measurements can be produced by position- ing lm in multiple...

325

Photo 3D-Printer, Image Credit, Ames Lab | OSTI, US Dept of Energy...  

Office of Scientific and Technical Information (OSTI)

Photo 3D-Printer, Image Credit, Ames Lab Critical Materials Institute speed metals research with 3D printer. Default Caption and Credits Read More: Critical Materials Institute...

326

Explanatory Lifelike Avatars: Performing User-Centered Tasks in 3D Learning Environments  

E-Print Network [OSTI]

environment, a 3D learning environment for the domain of computer architecture and systems for novices, WHIZLOW, who inhabits the CPU CITY 3D learning envir

Zettlemoyer, Luke

327

XEDS STEM Tomography For 3D Chemical CharacterizationOf Nanoscale...  

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

XEDS STEM Tomography For 3D Chemical CharacterizationOf Nanoscale Particles. XEDS STEM Tomography For 3D Chemical CharacterizationOf Nanoscale Particles. Abstract: We present a...

328

The M3D-C1 Approach to Simulating 3D 2-fluid Magnetohydrodynamics in Magnetic Fusion Experiments  

SciTech Connect (OSTI)

A new approach for solving the 3D MHD equations in a strongly magnetized toroidal plasma is presented which uses high-order 2D finite elements with C1 continuity. The vector fields use a physics-based decomposition. An efficient implicit time advance separates the velocity and field advance. ITAPS (SCOREC) adaptivity software and TOPS solvers are used.

S. C. Jardin, N. Ferraro, X. Luo, J. Chen, J. Breslau, K.E. Jansen, and M. S. Shephard

2008-06-24T23:59:59.000Z

329

A Parallel Tree code for large Nbody simulation: dynamic load balance and data distribution on CRAY T3D system  

E-Print Network [OSTI]

N-body algorithms for long-range unscreened interactions like gravity belong to a class of highly irregular problems whose optimal solution is a challenging task for present-day massively parallel computers. In this paper we describe a strategy for optimal memory and work distribution which we have applied to our parallel implementation of the Barnes & Hut (1986) recursive tree scheme on a Cray T3D using the CRAFT programming environment. We have performed a series of tests to find an " optimal data distribution " in the T3D memory, and to identify a strategy for the " Dynamic Load Balance " in order to obtain good performances when running large simulations (more than 10 million particles). The results of tests show that the step duration depends on two main factors: the data locality and the T3D network contention. Increasing data locality we are able to minimize the step duration if the closest bodies (direct interaction) tend to be located in the same PE local memory (contiguous block subdivison, high granularity), whereas the tree properties have a fine grain distribution. In a very large simulation, due to network contention, an unbalanced load arises. To remedy this we have devised an automatic work redistribution mechanism which provided a good Dynamic Load Balance at the price of an insignificant overhead.

U. Becciani; R. Ansaloni; V. Antonuccio-Delogu; G. Erbacci; M. Gambera; A. Pagliaro; -

1997-09-02T23:59:59.000Z

330

The Inverse Ising Problem  

Science Journals Connector (OSTI)

Abstract The inverse Ising problem consists of taking a set of Ising configurations generated with unknown interaction parameters, and deter- mining reliable estimates for the values of those interaction parameters. The problem first arose in connection with the Monte Carlo renormalization group, and was solved thirty years ago. Recently, there has been renewed interest in the inverse Ising problem due to biological applications. The original solution seems to have been forgotten, as it was rediscovered in a different representation by Aurell and Ekeberg in 2012. In this paper we modify the earlier equations to solve problems that are not translationally invariant.

Joseph Albert; Robert H. Swendsen

2014-01-01T23:59:59.000Z

331

3-D MAPPING TECHNOLOGIES FOR HIGH LEVEL WASTE TANKS  

SciTech Connect (OSTI)

This research investigated four techniques that could be applicable for mapping of solids remaining in radioactive waste tanks at the Savannah River Site: stereo vision, LIDAR, flash LIDAR, and Structure from Motion (SfM). Stereo vision is the least appropriate technique for the solids mapping application. Although the equipment cost is low and repackaging would be fairly simple, the algorithms to create a 3D image from stereo vision would require significant further development and may not even be applicable since stereo vision works by finding disparity in feature point locations from the images taken by the cameras. When minimal variation in visual texture exists for an area of interest, it becomes difficult for the software to detect correspondences for that object. SfM appears to be appropriate for solids mapping in waste tanks. However, equipment development would be required for positioning and movement of the camera in the tank space to enable capturing a sequence of images of the scene. Since SfM requires the identification of distinctive features and associates those features to their corresponding instantiations in the other image frames, mockup testing would be required to determine the applicability of SfM technology for mapping of waste in tanks. There may be too few features to track between image frame sequences to employ the SfM technology since uniform appearance may exist when viewing the remaining solids in the interior of the waste tanks. Although scanning LIDAR appears to be an adequate solution, the expense of the equipment ($80,000-$120,000) and the need for further development to allow tank deployment may prohibit utilizing this technology. The development would include repackaging of equipment to permit deployment through the 4-inch access ports and to keep the equipment relatively uncontaminated to allow use in additional tanks. 3D flash LIDAR has a number of advantages over stereo vision, scanning LIDAR, and SfM, including full frame time-of-flight data (3D image) collected with a single laser pulse, high frame rates, direct calculation of range, blur-free images without motion distortion, no need for precision scanning mechanisms, ability to combine 3D flash LIDAR with 2D cameras for 2D texture over 3D depth, and no moving parts. The major disadvantage of the 3D flash LIDAR camera is the cost of approximately $150,000, not including the software development time and repackaging of the camera for deployment in the waste tanks.

Marzolf, A.; Folsom, M.

2010-08-31T23:59:59.000Z

332

NORTH HILL CREEK 3-D SEISMIC EXPLORATION PROJECT  

SciTech Connect (OSTI)

Wind River Resources Corporation (WRRC) received a DOE grant in support of its proposal to acquire, process and interpret fifteen square miles of high-quality 3-D seismic data on non-allotted trust lands of the Uintah and Ouray (Ute) Indian Reservation, northeastern Utah, in 2000. Subsequent to receiving notice that its proposal would be funded, WRRC was able to add ten square miles of adjacent state and federal mineral acreage underlying tribal surface lands by arrangement with the operator of the Flat Rock Field. The twenty-five square mile 3-D seismic survey was conducted during the fall of 2000. The data were processed through the winter of 2000-2001, and initial interpretation took place during the spring of 2001. The initial interpretation identified multiple attractive drilling prospects, two of which were staked and permitted during the summer of 2001. The two initial wells were drilled in September and October of 2001. A deeper test was drilled in June of 2002. Subsequently a ten-well deep drilling evaluation program was conducted from October of 2002 through March 2004. The present report discusses the background of the project; design and execution of the 3-D seismic survey; processing and interpretation of the data; and drilling, completion and production results of a sample of the wells drilled on the basis of the interpreted survey. Fifteen wells have been drilled to test targets identified on the North Hill Creek 3-D Seismic Survey. None of these wildcat exploratory wells has been a dry hole, and several are among the best gas producers in Utah. The quality of the data produced by this first significant exploratory 3-D survey in the Uinta Basin has encouraged other operators to employ this technology. At least two additional 3-D seismic surveys have been completed in the vicinity of the North Hill Creek Survey, and five additional surveys are being planned for the 2004 field season. This project was successful in finding commercial oil, natural gas and natural gas liquids production on a remote part of the Uintah & Ouray Reservation. Much of the natural gas and natural gas liquids are being produced from the Wingate Formation, which to our knowledge has never produced commercially anywhere. Another large percentage of the natural gas is being produced from the Entrada Formation which has not previously produced in this part of the Uinta Basin. In all, at least nine geologic formations are contributing hydrocarbons to these wells. This survey has clearly established the fact that high-quality data can be obtained in this area, despite the known obstacles.

Marc T. Eckels; David H. Suek; Denise H. Harrison; Paul J. Harrison

2004-05-06T23:59:59.000Z

333

The Universe Adventure - Gravity  

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

Gravity: The Main Attraction Gravity: The Main Attraction Gravity Acts on All Matter Gravity's effect is apparent even at the largest scales: just as gravity keeps the Earth orbiting the sun, it holds these two irregular galaxies M32 and M110 in orbit around the larger Andromeda galaxy. In the late 1600s, the English mathematician Sir Isaac Newton gave the first scientific description of gravitation. Gravity is an attractive force existing between any two objects that have mass, causing them to accelerate towards each other. It is the weakest of the four fundamental forces but can act over great distances and is responsible for the formation of planets, stars, galaxies, and even larger scale structures such as groups and superclusters. Gravity is also the force that governs the motion of

334

Automated 3D trabecular bone structure analysis of the proximal femur—prediction of biomechanical strength by CT and DXA  

E-Print Network [OSTI]

z ORIGINAL ARTICLE Automated 3D trabecular bone structureIntroduction An automated 3D segmentation algorithm wasstudy was to use an automated 3D segmentation algorithm to

2010-01-01T23:59:59.000Z

335

3D Mt Resistivity Imaging For Geothermal Resource Assessment And  

Open Energy Info (EERE)

Resistivity Imaging For Geothermal Resource Assessment And Resistivity Imaging For Geothermal Resource Assessment And Environmental Mitigation At The Glass Mountain Kgra, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: 3D Mt Resistivity Imaging For Geothermal Resource Assessment And Environmental Mitigation At The Glass Mountain Kgra, California Details Activities (3) Areas (2) Regions (0) Abstract: MT and TDEM surveys acquired in 2005 were integrated with existing MT and TDEM data recovered from obsolete formats to characterize the geometry of the geothermal reservoir. An interpretation based on the correlation of the 3D MT resistivity with well properties indicated that most of the previous exploration wells had been tarted close to but not in the center of areas tha appeared most likely to be permeable. Such

336

Bootstrapping Mixed Correlators in the 3D Ising Model  

E-Print Network [OSTI]

We study the conformal bootstrap for systems of correlators involving non-identical operators. The constraints of crossing symmetry and unitarity for such mixed correlators can be phrased in the language of semidefinite programming. We apply this formalism to the simplest system of mixed correlators in 3D CFTs with a $\\mathbb{Z}_2$ global symmetry. For the leading $\\mathbb{Z}_2$-odd operator $\\sigma$ and $\\mathbb{Z}_2$-even operator $\\epsilon$, we obtain numerical constraints on the allowed dimensions $(\\Delta_\\sigma, \\Delta_\\epsilon)$ assuming that $\\sigma$ and $\\epsilon$ are the only relevant scalars in the theory. These constraints yield a small closed region in $(\\Delta_\\sigma, \\Delta_\\epsilon)$ space compatible with the known values in the 3D Ising CFT.

Kos, Filip; Simmons-Duffin, David

2014-01-01T23:59:59.000Z

337

2D-3D transition of gold cluster anions resolved  

Science Journals Connector (OSTI)

Small gold cluster anions Aun? are known for their unusual two-dimensional (2D) structures, giving rise to properties very different from those of bulk gold. Previous experiments and calculations disagree about the number of gold atoms nc where the transition to 3D structures occurs. We combine trapped ion electron diffraction and state of the art electronic structure calculations to resolve this puzzle and establish nc=12. It is shown that theoretical studies using traditional generalized gradient functionals are heavily biased towards 2D structures. For a correct prediction of the 2D-3D crossover point it is crucial to use density functionals yielding accurate jellium surface energies, such as the Tao-Perdew-Staroverov-Scuseria (TPSS) functional or the Perdew-Burke-Ernzerhof functional modified for solids (PBEsol). Further, spin-orbit effects have to be included, and large, flexible basis sets employed. This combined theoretical-experimental approach is promising for larger gold and other metal clusters.

Mikael P. Johansson; Anne Lechtken; Detlef Schooss; Manfred M. Kappes; Filipp Furche

2008-05-19T23:59:59.000Z

338

D3-D7 inflationary model and M theory  

Science Journals Connector (OSTI)

A proposal is made for a cosmological D3-D7 model with a constant magnetic flux along the D7 world volume. It describes an N=2 gauge model with Fayet-Iliopoulos terms and the potential of the hybrid P-term inflation. The motion of the D3-brane towards D7 in a phase with spontaneously broken supersymmetry provides a period of slow-roll inflation in the de Sitter valley, the role of the inflaton being played by the distance between D3- and D7-branes. After tachyon condensation a supersymmetric ground state is formed: a D3-D7 bound state corresponding to an Abelian non-linear (non-commutative) instanton. In this model the existence of a non-vanishing cosmological constant is associated with the resolution of the instanton singularity. We discuss a possible embedding of this model into a compactified M-theory setup.

Keshav Dasgupta; Carlos Herdeiro; Shinji Hirano; Renata Kallosh

2002-05-23T23:59:59.000Z

339

Widespread 3D seismic survey covers mature field in Gabon  

SciTech Connect (OSTI)

The exploration potential of the Port Gentil region, characterized by some of the earliest petroleum discoveries in Gabon, continues to be of important interest today. Available seismic data are of an older vintage (1974--82), recorded with low common mid-point (CMP) fold. They are critically void of coverage through the transition zone. The geology is highly complex, characterized by salt structures and strong tectonic activity. An intensive joint exploration and reservoir definition campaign is crucial to full evaluation of this area. This article describes the 3D survey conducted during 1992 and early 1993 over a mature oil field in an around Port Gentil and incorporating elements of land, transition zone, and shallow marine data acquisition -- the 3D Mandji program.

Riley, D.; Fleming, M. (Western Geophysical, Houston, TX (United States)); Delvaux, J. (Elf Gabon, Port Gentil (Gabon))

1993-12-06T23:59:59.000Z

340

AES Encryption and Decryption Using Direct3D 10 API  

E-Print Network [OSTI]

Current video cards (GPUs - Graphics Processing Units) are very programmable, have become much more powerful than the CPUs and they are very affordable. In this paper, we present an implementation for the AES algorithm using Direct3D 10 certified GPUs. The graphics API Direct3D 10 is the first version that allows the use of integer operations, making from the traditional GPUs (that works only with floating point numbers), General Purpose GPUs that can be used for a large number of algorithms, including encryption. We present the performance of the symmetric key encryption algorithm - AES, on a middle range GPU and on a middle range quad core CPU. On the testing system, the developed solution is almost 3 times faster on the GPU than on one single core CPU, showing that the GPU can perform as an efficient cryptographic accelerator.

Chiuta, Adrian Marius

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

Multicomponent 3-D characterization of a coalbed methane reservoir  

SciTech Connect (OSTI)

Methane is produced from fractured coalbed reservoirs at Cedar Hill Field in the San Juan Basin. Fracturing and local stress are critical to production because of the absence of matrix permeability in the coals. Knowledge of the direction of open fractures, the degree of fracturing, reservoir pressure, and compartmentalization is required to understand the flow of fluids through the reservoir. A multicomponent 3-D seismic survey was acquired to aid in coalbed methane reservoir characterization. Coalbed reservoir heterogeneities, including isolated pressure cells, zones of increased fracture density, and variable fracture directions, have been interpreted through the analysis of the multicomponent data and integration with petrophysical and reservoir engineering studies. Strike-slip faults, which compartmentalize the reservoir, have been identified by structural interpretation of the 3-D P-wave seismic data. These faults form boundaries for pressure cells that have been identified by P-wave reflection amplitude anomalies.

Shuck, E.L. [Advance Geophysical Corp., Englewood, CO (United States)] [Advance Geophysical Corp., Englewood, CO (United States); Davis, T.L.; Benson, R.D. [Colorado School of Mines, Golden, CO (United States). Geophysics Dept.] [Colorado School of Mines, Golden, CO (United States). Geophysics Dept.

1996-03-01T23:59:59.000Z

342

Sculplexity: Sculptures of Complexity using 3D printing  

E-Print Network [OSTI]

We show how to convert models of complex systems such as 2D cellular automata into a 3D printed object. Our method takes into account the limitations inherent to 3D printing processes and materials. Our approach automates the greater part of this task, bypassing the use of CAD software and the need for manual design. As a proof of concept, a physical object representing a modified forest fire model was successfully printed. Automated conversion methods similar to the ones developed here can be used to create objects for research, for demonstration and teaching, for outreach, or simply for aesthetic pleasure. As our outputs can be touched, they may be particularly useful for those with visual disabilities.

Reiss, D S; Evans, T S

2014-01-01T23:59:59.000Z

343

Sculplexity: Sculptures of Complexity using 3D printing  

Science Journals Connector (OSTI)

We show how to convert models of complex systems such as 2D cellular automata into a 3D printed object. Our method takes into account the limitations inherent to 3D printing processes and materials. Our approach automates the greater part of this task, bypassing the use of CAD software and the need for manual design. As a proof of concept, a physical object representing a modified forest fire model was successfully printed. Automated conversion methods similar to the ones developed here can be used to create objects for research, for demonstration and teaching, for outreach, or simply for aesthetic pleasure. As our outputs can be touched, they may be particularly useful for those with visual disabilities.

D. S. Reiss; J. J. Price; T. S. Evans

2013-01-01T23:59:59.000Z

344

Beam Optics Analysis - An Advanced 3D Trajectory Code  

SciTech Connect (OSTI)

Calabazas Creek Research, Inc. has completed initial development of an advanced, 3D program for modeling electron trajectories in electromagnetic fields. The code is being used to design complex guns and collectors. Beam Optics Analysis (BOA) is a fully relativistic, charged particle code using adaptive, finite element meshing. Geometrical input is imported from CAD programs generating ACIS-formatted files. Parametric data is inputted using an intuitive, graphical user interface (GUI), which also provides control of convergence, accuracy, and post processing. The program includes a magnetic field solver, and magnetic information can be imported from Maxwell 2D/3D and other programs. The program supports thermionic emission and injected beams. Secondary electron emission is also supported, including multiple generations. Work on field emission is in progress as well as implementation of computer optimization of both the geometry and operating parameters. The principle features of the program and its capabilities are presented.

Ives, R. Lawrence; Bui, Thuc; Vogler, William; Neilson, Jeff; Read, Mike [Calabazas Creek Research, Inc., 20937 Comer Drive, Saratoga, CA 95070-3753 (United States); Shephard, Mark; Bauer, Andrew; Datta, Dibyendu [Scientific Center for Computational Research, Rensselaer Polytechnic Institute, Troy NY 12180 (United States); Beal, Mark [Simmetrix, Inc., Clifton Park, NY 12065 (United States)

2006-01-03T23:59:59.000Z

345

Development of a physical 3D anthropomorphic breast phantom  

SciTech Connect (OSTI)

Purpose: Develop a technique to fabricate a 3D anthropomorphic breast phantom with known ground truth for image quality assessment of 2D and 3D breast x-ray imaging systems. Methods: The phantom design is based on an existing computer model that can generate breast voxel phantoms of varying composition, size, and shape. The physical phantom is produced in two steps. First, the portion of the voxel phantom consisting of the glandular tissue, skin, and Cooper's ligaments is separated into sections. These sections are then fabricated by high-resolution rapid prototyping using a single material with 50% glandular equivalence. The remaining adipose compartments are then filled using an epoxy-based resin (EBR) with 100% adipose equivalence. The phantom sections are stacked to form the physical anthropomorphic phantom. Results: The authors fabricated a prototype phantom corresponding to a 450 ml breast with 45% dense tissue, deformed to a 5 cm compressed thickness. Both the rapid prototype (RP) and EBR phantom materials are radiographically uniform. The coefficient of variation (CoV) of the relative attenuation between RP and EBR phantom samples was <1% and the CoV of the signal intensity within RP and EBR phantom samples was <1.5% on average. Digital mammography and reconstructed digital breast tomosynthesis images of the authors' phantom were reviewed by two radiologists; they reported that the images are similar in appearance to clinical images, noting there are still artifacts from air bubbles in the EBR. Conclusions: The authors have developed a technique to produce 3D anthropomorphic breast phantoms with known ground truth, yielding highly realistic x-ray images. Such phantoms may serve both qualitative and quantitative performance assessments for 2D and 3D breast x-ray imaging systems.

Carton, Ann-Katherine; Bakic, Predrag; Ullberg, Christer; Derand, Helen; Maidment, Andrew D. A. [Department of Radiology, University of Pennsylvania, 1 Silverstein Building, 3400 Spruce Street, Philadelphia, Pennsylvania 19104-4206 (United States); XCounter AB, Svaerdvaegen 11, SE-182 33 Danderyd (Sweden); Department of Radiology, University of Pennsylvania, 1 Silverstein Building, 3400 Spruce Street, Philadelphia, Pennsylvania 19104-4206 (United States)

2011-02-15T23:59:59.000Z

346

Durability Assessment of an Arch Dam using Inverse Analysis with Neural Networks and High Performance Computing.  

E-Print Network [OSTI]

the viscoelastic parameters; 3D FEM analysis using High Performance Computing (parallel and vector features) to run Performance Computing. E. M. R. Fairbairn, E. Goulart, A. L. G. A. Coutinho, N. F. F. Ebecken COPPEDurability Assessment of an Arch Dam using Inverse Analysis with Neural Networks and High

Coutinho, Alvaro L. G. A.

347

3D acoustic imaging applied to the Baikal Neutrino Telescope  

E-Print Network [OSTI]

A hydro-acoustic imaging system was tested in a pilot study on distant localization of elements of the Baikal underwater neutrino telescope. For this innovative approach, based on broad band acoustic echo signals and strictly avoiding any active acoustic elements on the telescope, the imaging system was temporarily installed just below the ice surface, while the telescope stayed in its standard position at 1100 m depth. The system comprised an antenna with four acoustic projectors positioned at the corners of a 50 meter square; acoustic pulses were "linear sweep-spread signals" - multiple-modulated wide-band signals (10-22 kHz) of 51.2 s duration. Three large objects (two string buoys and the central electronics module) were localized by the 3D acoustic imaging, with a accuracy of ~0.2 m (along the beam) and ~1.0 m (transverse). We discuss signal forms and parameters necessary for improved 3D acoustic imaging of the telescope, and suggest a layout of a possible stationary bottom based 3D imaging setup. The presented technique may be of interest for neutrino telescopes of km3-scale and beyond, as a flexible temporary or as a stationary tool to localize basic telescope elements, while these are completely passive.

K. G. Kebkal; R. Bannasch; O. G. Kebkal; A. I. Panfilov; R. Wischnewski

2008-11-07T23:59:59.000Z

348

Single molecule microscopy in 3D cell cultures and tissues  

Science Journals Connector (OSTI)

Abstract From the onset of the first microscopic visualization of single fluorescent molecules in living cells at the beginning of this century, to the present, almost routine application of single molecule microscopy, the method has well-proven its ability to contribute unmatched detailed insight into the heterogeneous and dynamic molecular world life is composed of. Except for investigations on bacteria and yeast, almost the entire story of success is based on studies on adherent mammalian 2D cell cultures. However, despite this continuous progress, the technique was not able to keep pace with the move of the cell biology community to adapt 3D cell culture models for basic research, regenerative medicine, or drug development and screening. In this review, we will summarize the progress, which only recently allowed for the application of single molecule microscopy to 3D cell systems and give an overview of the technical advances that led to it. While initially posing a challenge, we finally conclude that relevant 3D cell models will become an integral part of the on-going success of single molecule microscopy.

Florian M. Lauer; Elke Kaemmerer; Tobias Meckel

2014-01-01T23:59:59.000Z

349

On Enhancing Power Benefits in 3D ICs: Block Folding and Bonding Styles Perspective  

Science Journals Connector (OSTI)

Low power is widely considered as a key benefit of 3D ICs, yet there have been few thorough design studies on how to maximize power benefits in 3D ICs. In this paper, we present design methodologies to reduce power consumption in 3D ICs using a large-scale ... Keywords: 3D IC, block folding, bonding style, power benefit

Moongon Jung, Taigon Song, Yang Wan, Yarui Peng, Sung Kyu Lim

2014-06-01T23:59:59.000Z

350

Metrological analysis of a procedure for the automatic 3D modeling of dental plaster casts  

E-Print Network [OSTI]

Metrological analysis of a procedure for the automatic 3D modeling of dental plaster casts Nicola to an automatic procedure recently proposed for the 3D modeling of dental plaster casts. This contribution derives of an automatic 3D modeling procedure recently proposed and it shows the accuracy of 3D modeling dental plaster

Abu-Mostafa, Yaser S.

351

From Low-Cost Depth Sensors to CAD: Cross-Domain 3D Shape Retrieval via  

E-Print Network [OSTI]

applications for 3D shape retrieval, such as high-quality 3D scanning, manipulation and printing. NoteFrom Low-Cost Depth Sensors to CAD: Cross-Domain 3D Shape Retrieval via Regression Tree Fields Yan@us.ibm.com Abstract. The recent advances of low-cost and mobile depth sensors dramatically extend the potential of 3D

Chang, Shih-Fu

352

3D MODEL RETRIEVAL BASED ON DEPTH LINE DESCRIPTOR Mohamed Chaouch and Anne Verroust-Blondet  

E-Print Network [OSTI]

3D MODEL RETRIEVAL BASED ON DEPTH LINE DESCRIPTOR Mohamed Chaouch and Anne Verroust-Blondet INRIA.verroust}@inria.fr. ABSTRACT In this paper, we propose a novel 2D/3D approach for 3D model matching and retrieving. Each model information provides a more accurate description of 3D shape boundaries than using other 2D shape descriptors

Paris-Sud XI, Université de

353

3D Graph Visualization with the Oculus Rift Virtual Graph Reality  

E-Print Network [OSTI]

3D Graph Visualization with the Oculus Rift Virtual Graph Reality Farshad Barahimi, Stephen Wismath regarding three- dimensional (3D) representations of graphs. However, the actual usefulness of such 3D reality environment such as a CAVE, or · printed as a physical model with a 3D printer. Early studies

Wismath, Stephen

354

Learning 3D Object Templates by Hierarchical Quantization of Geometry and Appearance Spaces  

E-Print Network [OSTI]

Learning 3D Object Templates by Hierarchical Quantization of Geometry and Appearance Spaces Wenze for learning 3D object tem- plates from view labeled object images. The 3D template is defined in a joint-sampled discrete space. Using information gain as a criterion, the best 3D template can be searched through the AND

Zhu, Song Chun

355

3D Haptic Modeling System using Ungrounded Pen-shaped Kinesthetic Display  

E-Print Network [OSTI]

3D Haptic Modeling System using Ungrounded Pen-shaped Kinesthetic Display Sho Kamuro 1) Kouta-dimensional (3D) haptic modeling system that enables a user to create 3D models as though he/she is drawing and intuitively create various 3D shapes by drawing closed curves in air using the device. The created shapes

Tachi, Susumu

356

3D Engineered Models for Highway Construction Gabe Nelson, P.E.  

E-Print Network [OSTI]

3D Engineered Models for Highway Construction Gabe Nelson, P.E. Snyder & Associates, Inc. Overview of 3D Engineered Models for Highway Construction Module 1 Introduction #12;3D Engineered Models & Quality ­ Protect the Environment · Every Day Counts 2 included 3D Engineered Models for Construction

357

3D tomodosimetry using long scintillating fibers: A feasibility study  

SciTech Connect (OSTI)

Purpose: 3D dosimetry is recognized as an ideal for patient-specific quality assurance (QA) of highly conformal radiotherapy treatments. However, existing 3D dosimeters are not straightforward to implement in the clinic, as their read-out procedure is often tedious and their accuracy, precision, and/or sample size exhibit limitations. The purpose of this work is to develop a 3D dosimeter based on the concept of tomodosimetry inside concentric cylindrical planes using long scintillating fibers for the QA of modern radiotherapy techniques such as intensity-modulated radiation therapy (IMRT) or intensity-modulated arc therapy (IMAT).Methods: Using a model-based simulation, scintillating fibers were modeled on three concentric cylindrical planes of radii 2.5, 5.0, and 7.5 cm, inside a 10 cm radius water-equivalent cylinder phantom. The phantom was set to rotate around its central axis, made parallel to the linac gantry axis of rotation. Light acquisitions were simulated using the calculated dose from the treatment planning software and reconstructed in each cylindrical plane at a resolution of 1 mm{sup 2} using a total-variation minimization iterative reconstruction algorithm. The 3D dose was then interpolated from the reconstructed cylindrical plane doses at a resolution of 1 mm{sup 3}. Different scintillating fiber patterns were compared by varying the angle of each fiber in its cylindrical plane and introducing a light-tight cut in each fiber. The precision of the reconstructed cylindrical dose distribution was evaluated using a Poisson modeling of the acquired light signals and the accuracy of the interpolated 3D dose was evaluated using an IMRT clinical plan for a prostate case.Results: Straight scintillating fiber patterns with light-tight cuts were the most accurate in cylindrical dose reconstruction, showing less than 0.5 mm distance-to-agreement in dose gradients and a mean local dose difference of less than 0.2% in the high dose region for a 10 × 10 cm{sup 2} field. The precision attained with this fiber configuration was less than 0.9% in the high dose, low gradient region of an IMRT segment for light acquisitions of 0.1 MU over a 360 degree rotation of the cylinder phantom. 3D dose interpolation for the IMRT clinical plan yielded an overall dose difference with the reference input of less than 1%, except in high dose gradients.Conclusions: Using long scintillating fibers inside rotating, concentric cylindrical planes, the authors demonstrate that their tomodosimetry method has the potential for high resolution, precise, and accurate 3D dosimetry. Moreover, because of its water-equivalence and rotational symmetry, this design should find interesting application for both treatment QA and machine commissioning.

Goulet, Mathieu; Archambault, Louis; Beaulieu, Luc; Gingras, Luc [Département de Physique, de Génie Physique et d’Optique et Centre de Recherche sur le cancer, Université Laval, Québec, Québec G1V 0A6, Canada, and Département de Radio-Oncologie and CRCHU de Quebec, CHU de Québec, 11 Côte du Palais, Québec, Québec G1R 2J6 (Canada)] [Département de Physique, de Génie Physique et d’Optique et Centre de Recherche sur le cancer, Université Laval, Québec, Québec G1V 0A6, Canada, and Département de Radio-Oncologie and CRCHU de Quebec, CHU de Québec, 11 Côte du Palais, Québec, Québec G1R 2J6 (Canada)

2013-10-15T23:59:59.000Z

358

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION  

E-Print Network [OSTI]

INVERSE PROTEIN FOLDING, HIERARCHICAL OPTIMISATION AND TIE KNOTS Thomas M. A. Fink st. john Introduction 3 1.1 Inverse Protein Folding 3 1.2 Hierarchical Optimisation 5 1.3 Tie Knots 6 1.4 Schematic Organisation 6 1.5 Publications 9 2 Protein Folding, Inverse Protein Folding and Energy Landscapes 10 2

Halligan, Daniel

359

TOWARDSAUTOMATICMODELING OF 3D CULTURAL HERITAGE M. Andreetto, R. Bemardini, G.M. Cortelazzo,L. Lucchese  

E-Print Network [OSTI]

by means of the "3D printing" devices used in mechanical rapid prototyping. Another one is that 3D objects

Abu-Mostafa, Yaser S.

360

Gravity Train Project  

E-Print Network [OSTI]

Dec 7, 2013 ... Gravity Train Project. Same page in Romanian, Polish, and in French. Let us drill a straight tunnel from West Lafayette, IN to Paris, France:.

Note: This page contains sample records for the topic "3d gravity inversion" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

3-D HYDRODYNAMIC MODELING IN A GEOSPATIAL FRAMEWORK  

SciTech Connect (OSTI)

3-D hydrodynamic models are used by the Savannah River National Laboratory (SRNL) to simulate the transport of thermal and radionuclide discharges in coastal estuary systems. Development of such models requires accurate bathymetry, coastline, and boundary condition data in conjunction with the ability to rapidly discretize model domains and interpolate the required geospatial data onto the domain. To facilitate rapid and accurate hydrodynamic model development, SRNL has developed a pre- and post-processor application in a geospatial framework to automate the creation of models using existing data. This automated capability allows development of very detailed models to maximize exploitation of available surface water radionuclide sample data and thermal imagery.

Bollinger, J; Alfred Garrett, A; Larry Koffman, L; David Hayes, D

2006-08-24T23:59:59.000Z

362

Nuclear Dynamics with the Sky3D code  

E-Print Network [OSTI]

A description is presented of how to use the Sky3D time-dependent Hartree-Fock code to calculate giant monopole resonances. This requires modification to the code, and a step-by-step guide of how to make the necessary modification is given. An example of how to analyse the output of the code to obtain quantities of physics interest is included. Together, the modifications and the post-processing are intended to serve as a typical example of how the code, which was designed to be extendable to particular users' needs, can be extended.

Stevenson, P D

2014-01-01T23:59:59.000Z

363

Virtual reality 3D headset based on DMD light modulators  

SciTech Connect (OSTI)

We present the design of an immersion-type 3D headset suitable for virtual reality applications based upon digital micro-mirror devices (DMD). Our approach leverages silicon micro mirrors offering 720p resolution displays in a small form-factor. Supporting chip sets allow rapid integration of these devices into wearable displays with high resolution and low power consumption. Applications include night driving, piloting of UAVs, fusion of multiple sensors for pilots, training, vision diagnostics and consumer gaming. Our design is described in which light from the DMD is imaged to infinity and the user’s own eye lens forms a real image on the user’s retina.

Bernacki, Bruce E.; Evans, Allan; Tang, Edward

2014-06-13T23:59:59.000Z

364

3d mirror symmetry as a canonical transformation  

E-Print Network [OSTI]

We generalize the free Fermi-gas formulation of certain 3d ${\\cal N}=3$ supersymmetric Chern-Simons-matter theories by allowing Fayet-Iliopoulos couplings as well as mass terms for bifundamental matter fields. The resulting partition functions are given by simple modifications of the argument of the Airy function found previously. With these extra parameters it is easy to see that mirror-symmetry corresponds to linear canonical transformations on the phase space (or operator algebra) of the 1-dimensional fermions.

Drukker, Nadav

2015-01-01T23:59:59.000Z

365

Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel  

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

3-D Animation Shows 3-D Animation Shows Complex Geometry of Diesel Particulates to someone by E-mail Share Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel Particulates on Facebook Tweet about Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel Particulates on Twitter Bookmark Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel Particulates on Google Bookmark Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel Particulates on Delicious Rank Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel Particulates on Digg Find More places to share Vehicle Technologies Office: 3-D Animation Shows Complex Geometry of Diesel Particulates on AddThis.com... 3-D Animation Shows Complex Geometry of Diesel Particulates

366

MO-A-9A-01: Innovation in Medical Physics Practice: 3D Printing Applications  

Science Journals Connector (OSTI)

3D printing also called additive manufacturing has great potential to advance the field of medicine. Many medical uses have been exhibited from facial reconstruction to the repair of pulmonary obstructions. The strength of 3D printing is to quickly convert a 3D computer model into a physical object. Medical use of 3D models is already ubiquitous with technologies such as computed tomography and magnetic resonance imaging. Thus tailoring 3D printing technology to medical functions has the potential to impact patient care. This session will discuss applications to the field of Medical Physics. Topics discussed will include introduction to 3D printing methods as well as examples of real-world uses of 3D printing spanning clinical and research practice in diagnostic imaging and radiation therapy. The session will also compare 3D printing to other manufacturing processes and discuss a variety of uses of 3D printing technology outside the field of Medical Physics.

2014-01-01T23:59:59.000Z

367

3-D physical modeling of a complex salt canopy  

SciTech Connect (OSTI)

Recent drilling has confirmed both significant reservoir potential and the presence of commercial hydrocarbons below salt structures in the Gulf of Mexico. Obtaining definitive seismic images with standard processing schemes beneath these salt structures is very difficult if not impossible. Because of the complicated seismic behavior of these structures, full volume 3-D prestack depth migration is required. Unfortunately, carrying out the multitude of calculations needed to create a proper image requires the largest and fastest supercomputers and rather complex numerical algorithms. Furthermore, developing and testing the imaging algorithms is quite involved and requires appropriate test data sets. To better understand the problems and issues of subsalt imaging, Marathon Oil Company and Louisiana Land and Exploration Company contracted with the University of Houston`s Allied Geophysical Laboratories (AGL) to construct a salt canopy physical model. The model is patterned after the SEG/EAEG Salt Model and is made from synthetic materials. It is a full three-dimensional model with an irregularly shaped, lateral salt structure embedded in five distinct sedimentary layers. The model was used to acquire a multi-offset 3-D marine-style survey. These data are being used to address problems of subsalt imaging. In addition to standard processing techniques, the authors investigate algorithms for multiple removal and prestack depth migration.

Wiley, R.W. [Marathon Oil Co., Littleton, CO (United States); Sekharan, K.K. [Univ. of Houston, TX (United States). Allied Geophysical Labs.

1996-12-31T23:59:59.000Z

368

Desktop 3D printing of controlled release pharmaceutical bilayer tablets  

Science Journals Connector (OSTI)

Abstract Three dimensional (3D) printing was used as a novel medicine formulation technique for production of viable tablets capable of satisfying regulatory tests and matching the release of standard commercial tablets. Hydroxypropyl methylcellulose (HPMC 2208) (Methocel™ K100M Premium) and poly(acrylic acid) (PAA) (Carbopol® 974P NF) were used as a hydrophilic matrix for a sustained release (SR) layer. Hypromellose® (HPMC 2910) was used as a binder while microcrystalline cellulose (MCC) (Pharmacel® 102) and sodium starch glycolate (SSG) (Primojel®) were used as disintegrants for an immediate release (IR) layer. Commercial guaifenesin bi-layer tablets (GBT) were used as a model drug (Mucinex®) for this study. There was a favourable comparison of release of the active guaifenesin from the printed hydrophilic matrix compared with the commercially available GBT. The printed formulations were also evaluated for physical and mechanical properties such as weight variation, friability, hardness and thickness as a comparison to the commercial tablet and were within acceptable range as defined by the international standards stated in the United States Pharmacopoeia (USP). All formulations (standard tablets and 3D printed tablets) showed Korsmeyer-Peppas n values between 0.27 and 0.44 which indicates Fickian diffusion drug release through a hydrated HPMC gel layer.

Shaban A. Khaled; Jonathan C. Burley; Morgan R. Alexander; Clive J. Roberts

2014-01-01T23:59:59.000Z

369

AUTOMATED, HIGHLY ACCURATE VERIFICATION OF RELAP5-3D  

SciTech Connect (OSTI)

Computer programs that analyze light water reactor safety solve complex systems of governing, closure and special process equations to model the underlying physics. In addition, these programs incorporate many other features and are quite large. RELAP5-3D[1] has over 300,000 lines of coding for physics, input, output, data management, user-interaction, and post-processing. For software quality assurance, the code must be verified and validated before being released to users. Verification ensures that a program is built right by checking that it meets its design specifications. Recently, there has been an increased importance on the development of automated verification processes that compare coding against its documented algorithms and equations and compares its calculations against analytical solutions and the method of manufactured solutions[2]. For the first time, the ability exists to ensure that the data transfer operations associated with timestep advancement/repeating and writing/reading a solution to a file have no unintended consequences. To ensure that the code performs as intended over its extensive list of applications, an automated and highly accurate verification method has been modified and applied to RELAP5-3D. Furthermore, mathematical analysis of the adequacy of the checks used in the comparisons is provided.

George L Mesina; David Aumiller; Francis Buschman

2014-07-01T23:59:59.000Z

370

Realizacao domestica e escolar de foto e video 3D  

E-Print Network [OSTI]

English: Industry does not give attention to the small domestic or professional market of digital technologies for 3D images. What was done on the XX century by using photographic film is not know available to the common people, though the facilities are even better. Some technique developed in Brasil twenty years ago and the use of conventional domestic photo or video cameras allows fot making pictures and films at home by using digital conversions for editing, and two-color goggles. The anaglyphic technique, the same NASA employs to show Mars images to the public, is not employed in Brazil yet. We must analize the reasons for that. Portugues: A industria nao tem dado atencao ao mercado domestico ou profissional de pequena escala nas novas tecnologias digitais para imagem 3D. O que foi feito ao longo do seculo XX usando filme fotografico nao esta hoje ao alcance das pessoas, sendo que a facilidade de uso e muito maior. Tecnicas desenvolvidas no Brasil ha mais de vinte anos, e o uso de simples cameras convencionais de fotografia e video permitem realizar fotos e filmes caseiros por meio de conversoes digitais na edicao e o uso de oculos bicolor. A tecnica anagifica, a mesma que a NASA usa para mostrar ao publico as imagens de Marte, por exemplo, nao teve espaco no Brasil ainda. Devemos analisar os motivos que podem estar influenciando e os caminhos para mudar isso.

Jose J. Lunazzi

2012-12-19T23:59:59.000Z

371

ASIC for High Rate 3D Position Sensitive Detectors  

SciTech Connect (OSTI)

We report on the development of an application specific integrated circuit (ASIC) for 3D position sensitive detectors (3D PSD). The ASIC is designed to operate with pixelated wide bandgap sensors like Cadmium-Zinc-Telluride (CZT), Mercuric Iodide (Hgl2) and Thallium Bromide (TIBr). It measures the amplitudes and timings associated with an ionizing event on 128 anodes, the anode grid, and the cathode. Each channel provides low-noise charge amplification, high-order shaping with peaking time adjustable from 250 ns to 12 {micro}s, gain adjustable to 20 mV/fC or 120 mV/fC (for a dynamic range of 3.2 MeV and 530 keV in CZT), amplitude discrimination with 5-bit trimming, and positive and negative peak and timing detections. The readout can be full or sparse, based on a flag and single- or multi-cycle token passing. All channels, triggered channels only, or triggered with neighbors can be read out thus increasing the rate capability of the system to more than 10 kcps. The ASIC dissipates 330 mW which corresponds to about 2.5 mW per channel.

Vernon, E.; De Geronimo, G.; Ackley, K.; Fried, J.; He, Z.; Herman, C.; Zhang, F.

2010-06-16T23:59:59.000Z

372

KAM theory and the 3D Euler equation  

E-Print Network [OSTI]

We prove that the dynamical system defined by the hydrodynamical Euler equation on any closed Riemannian 3-manifold $M$ is not mixing in the $C^k$ topology ($k > 4$ and non-integer) for any prescribed value of helicity and sufficiently large values of energy. This can be regarded as a 3D version of Nadirashvili's and Shnirelman's theorems showing the existence of wandering solutions for the 2D Euler equation. Moreover, we obtain an obstruction for the mixing under the Euler flow of $C^k$-neighborhoods of divergence-free vectorfields on $M$. On the way we construct a family of functionals on the space of divergence-free $C^1$ vectorfields on the manifold, which are integrals of motion of the 3D Euler equation. Given a vectorfield these functionals measure the part of the manifold foliated by ergodic invariant tori of fixed isotopy types. We use the KAM theory to establish some continuity properties of these functionals in the $C^k$-topology. This allows one to get a lower bound for the $C^k$-distance between a divergence-free vectorfield (in particular, a steady solution) and a trajectory of the Euler flow.

Boris Khesin; Sergei Kuksin; Daniel Peralta-Salas

2014-01-21T23:59:59.000Z

373

Counterterms in Lovelock Gravity  

E-Print Network [OSTI]

In this paper, we introduce the counterterms that remove the non-logarithmic divergences of the action in third order Lovelock gravity. We do this by defining the cosmological constant in such a way that the asymptotic form of the metric have the same form in Lovelock and Einstein gravities. Thus, we employ the counterterms of Einstein gravity and show that the power law divergences in the action of Lovelock gravity can be removed by suitable choice of coefficients. We find that the dependence of these coefficients on the dimension in Lovelock gravity is the same as in Einstein gravity. We also introduce the finite energy-momentum tensor and employ these counterterms to calculate the finite action and mass of the black hole solutions of third order Lovelock gravity. We calculate the thermodynamic quantities and show that the entropy calculated through the use of Gibbs-Duhem relation is consistent with the obtained entropy by Wald's formula. We, also, find that in contrast to Einstein gravity in which there ex...

Mehdizadeh, M R; Zangeneh, M Kord

2015-01-01T23:59:59.000Z

374

Gravity perturbed Crapper waves  

Science Journals Connector (OSTI)

...waves are known to have multi-valued height. Using...gravity-capillary waves with multi-valued height. The...of single-valued and multi-valued travelling waves...absence of gravity, a family of exact solutions is...elliptic functions. Building upon the work by Tanveer...

2014-01-01T23:59:59.000Z

375

Selection Rules for the Nonlinear Interactions of Internal Gravity Waves and Inertia-Gravity Waves  

E-Print Network [OSTI]

Internal Gravity Waves . . . . . . . . . . . . . . 3.2.1 Twodimensional inertia-gravity wave physics . . . . . . . . .Three dimensional inertia-gravity wave physics . . . . . .

Jiang, Chung-Hsiang

2010-01-01T23:59:59.000Z

376

Seismic Attenuation Inversion with t* Using tstarTomog.  

SciTech Connect (OSTI)

Seismic attenuation is defined as the loss of the seismic wave amplitude as the wave propagates excluding losses strictly due to geometric spreading. Information gleaned from seismic waves can be utilized to solve for the attenuation properties of the earth. One method of solving for earth attenuation properties is called t*. This report will start by introducing the basic theory behind t* and delve into inverse theory as it pertains to how the algorithm called tstarTomog inverts for attenuation properties using t* observations. This report also describes how to use the tstarTomog package to go from observed data to a 3-D model of attenuation structure in the earth.

Preston, Leiph

2014-09-01T23:59:59.000Z

377

The accretion regime of LS 5039: 3-D SPH simulations  

E-Print Network [OSTI]

LS 5039 is a TeV gamma-ray binary with extended radio emission. It consists of a compact object in the mildly eccentric (e=0.35), 3.9-day orbit around a massive O star. The nature of the compact object is not yet established. In this paper, assuming that the compact object is a black hole, we study the accretion of O-star wind by the black hole, by performing three-dimensional Smoothed Particle Hydrodynamics (SPH) simulations. In order to roughly emulate the effect of the stellar radiation effectively canceling the stellar gravity, we assume that the O star's gravity does not exert on the wind. The wind particles are ejected with half the observed terminal velocity in a narrow range of azimuthal and vertical angles toward the black hole, in order to emulate the wind significantly slower than the terminal speed, and optimize the resolution and computational efficiency of simulations. We find that the mass-accretion rate closely follows the classical Bondi-Hoyle-Littleton accretion rate, which is of the order of 10^{16}g/s around periastron. The accretion rate at this level would provide jets enough power to produce the gamma-rays detected by HESS. Since the accretion peak occurs near the periastron passage, we need a strong gamma-ray absorption around periastron in order for the microquasar scenario to be consistent with the observed orbital modulation of the TeV gamma-ray flux.

A. T. Okazaki; G. E. Romero; S. P. Owocki

2008-11-12T23:59:59.000Z

378

Evolving Design Rules for the Inverse Granular Packing Problem  

E-Print Network [OSTI]

If a collection of identical particles is poured into a container, different shapes will fill to different densities. But what is the shape that fills a container as close as possible to a pre-specified, desired density? We demonstrate a solution to this inverse-packing problem by framing it in the context of artificial evolution. By representing shapes as bonded spheres, we show how shapes may be mutated, simulated, and selected to produce particularly dense or loose packing aggregates, both with and without friction. Moreover, we show how motifs emerge linking these shapes together. The result is a set of design rules that function as an effective solution to the inverse packing problem for given packing procedures and boundary conditions. Finally, we show that these results are verified by experiments on 3D-printed prototypes used to make packings in the real world.

Marc Z. Miskin; Heinrich M. Jaeger

2014-03-17T23:59:59.000Z

379

Minimizing Test Time through Test FlowOptimization in 3D-SICs.  

E-Print Network [OSTI]

?? 3D stacked ICs (3D-SICs) with multiple dies interconnected by through-silicon-vias(TSVs) are considered as a technology driver and proven to have overwhelming advantagesover traditional ICs… (more)

DASH, ASSMITRA

2013-01-01T23:59:59.000Z

380

Tubular Enhanced Geodesic Active Contours for Continuum Robot Detection using 3D Ultrasound  

E-Print Network [OSTI]

Tubular Enhanced Geodesic Active Contours for Continuum Robot Detection using 3D Ultrasound continuum robots in 3D ultrasound images. The proposed approach combines geodesic active contours Enhanced Geodesic Active Contours (TEGAC), is demonstrated through ex vivo intracardiac experiments

Dupont, Pierre

Note: This page contains sample records for the topic "3d gravity inversion" 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

Geometric modeling and optimization in 3D solar cells : implementation and algorithms  

E-Print Network [OSTI]

Conversion of solar energy in three-dimensional (3D) devices has been essentially untapped. In this thesis, I design and implement a C++ program that models and optimizes a 3D solar cell ensemble embedded in a given ...

Wan, Jin Hao, M. Eng. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

382

Harnessing AutoCAD Civil 3D 2011, 1st edition  

Science Journals Connector (OSTI)

HARNESSING AUTOCAD CIVIL 3D 2011, introduces readers to Autodesk? Civil 3D 2011, the very latest release of this software. Strategically developed exercises printed within the book are supported by over 600 pages of online text emphasizing industry best ...

Phillip J. Zimmerman

2010-10-01T23:59:59.000Z

383

High-resolution 3-D refractive index imaging and Its biological applications  

E-Print Network [OSTI]

This thesis presents a theory of 3-D imaging in partially coherent light under a non-paraxial condition. The transmission cross-coefficient (TCC) has been used to characterize partially coherent imaging in a 2- D and 3-D ...

Sung, Yongjin

2011-01-01T23:59:59.000Z

384

Developing a 3D colour image reproduction system for additive manufacturing of facial prostheses  

Science Journals Connector (OSTI)

In this study, a new 3D colour image reproduction system is proposed for the automated and accurate additive manufacturing of soft tissue facial prostheses. A framework ... show that the protocol used in the 3D manufacturing

Kaida Xiao; Faraedon Zardawi…

2014-02-01T23:59:59.000Z

385

Generation of Energy Efficient Trajectories for NIMS3D, a Three-Dimensional Cabled Robot  

E-Print Network [OSTI]

are ideal for many tasks, such as handling of hazardous materials and disaster search and rescue efforts [2 - NIMS3D. Fig. 1 shows a schematic diagram of NIMS3D. The system is comprised of three components: 1

Sukhatme, Gaurav S.

386

Efficient Generation of Video Hologram Using Spatio-Temporal Redundant Data of 3-D Video  

Science Journals Connector (OSTI)

In this paper, a new method for efficient generation of video hologram for 3-D video is proposed by combined use of redundant data of 3-D video and look-up table techniques.

Kim, Seung-Cheol; Kim, Eun-Soo

387

Reliable and Fault-Tolerant Software-Defined Network Operations Scheme for Remote 3D Printing  

Science Journals Connector (OSTI)

The recent wide expansion of applicable three-dimensional (3D) printing and software-defined networking (SDN) technologies ... of responsiveness and reliability of SDN for remote 3D printing and control processes...

Dongkyun Kim; Joon-Min Gil

2014-12-01T23:59:59.000Z

388

Design and analysis of a concrete modular housing system constructed with 3D panels  

E-Print Network [OSTI]

An innovative modular house system design utilizing an alternative concrete residential building system called 3D panels is presented along with an overview of 3D panels as well as relevant methods and markets. The proposed ...

Sarcia, Sam Rhea, 1982-

2004-01-01T23:59:59.000Z

389

A qualitative security analysis of a new class of 3-d integrated crypto co-processors  

Science Journals Connector (OSTI)

3-D integration presents many new opportunities for architects and embedded systems designers. However, 3-D integration has not yet been explored by the cryptographic hardware community. Traditionally, crypto co-processors have been implemented as a ...

Jonathan Valamehr; Ted Huffmire; Cynthia Irvine; Ryan Kastner; $#199;etin Kaya Ko$#231;; Timothy Levin; Timothy Sherwood

2012-01-01T23:59:59.000Z

390

Programmers Manual for the PVM Coupling Interface in RELAP5-3D  

SciTech Connect (OSTI)

This report describes the implementation of the PVM API in the RELAP5-3D© computer code. The information in the report is intended for programmers wanting to correct or extend RELAP5-3D©.

Walter L Weaver III

2005-03-01T23:59:59.000Z

391

Impact of 3D printing on global supply chains by 2020  

E-Print Network [OSTI]

This thesis aims to quantitatively estimate the potential impact of 3D Printing on global supply chains. Industrial adoption of 3D Printing has been increasing gradually from prototyping to manufacturing of low volume ...

Bhasin, Varun

2014-01-01T23:59:59.000Z

392

3-D Printed Electrically and Optically Paced Skeletal Muscle Based Biological Machines Caroline Cvetkovic, Bioengineering  

E-Print Network [OSTI]

3-D Printed Electrically and Optically Paced Skeletal Muscle Based Biological Machines Caroline Research Aims and Goals · To use 3D printing technologies to fabricate the structure of the biological

Kilian, Kristopher A.

393

ARM's efforts to address the need for 3D cloud and precipitation...  

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

Pavlos Kollias ARM's efforts to address the need for 3D cloud and precipitation measurements ARM will get into 3D measurements, stop explaining why The ARRA arrived at the doorstep...

394

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

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

395

Efficient 3D building model generation from 2D floor plans  

E-Print Network [OSTI]

3D building models are beneficial to architects, interior designers, and ordinary people in visualizing indoor space in three dimensions. 3D building models appear to be more aesthetic to ordinary people than architectural ...

Kashlev, Dmitry

2008-01-01T23:59:59.000Z

396

Towards a unified treatment of 3D display using partially coherent light  

E-Print Network [OSTI]

This thesis develops a novel method of decomposing a 3D phase space description of light into multiple partially coherent modes, and applies this decomposition to the creation of a more flexible 3D display format. Any type ...

Horstmeyer, Roarke (Roarke William)

2011-01-01T23:59:59.000Z

397

"Flying Through the Known Universe" Screens at 3D Film Festival...  

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

3D movie flight through hundreds of thousands of galaxies at considerably faster than the speed of light has its world-premiere screening at the 3D Film Festival in Los Angeles....

398

Method to Remedy Image Degradations Due to Facet Braiding in 3D Integral-Imaging Monitors  

Science Journals Connector (OSTI)

One of the main challenges in 3D integral imaging (InI) is to overcome the limited depth of field of displayed 3D images. Although this limitation can ...

Navarro, Héctor; Martínez-Cuenca, Raúl; Molina-Martín, Ainhoa; Martínez-Corral, Manuel; Saavedra, Genaro; Javidi, Bahram

2010-01-01T23:59:59.000Z

399

3D Magnetotelluric Characterization Of The Geothermal Anomaly In The  

Open Energy Info (EERE)

Magnetotelluric Characterization Of The Geothermal Anomaly In The Magnetotelluric Characterization Of The Geothermal Anomaly In The Llucmajor Aquifer System (Majorca, Spain) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3D Magnetotelluric Characterization Of The Geothermal Anomaly In The Llucmajor Aquifer System (Majorca, Spain) Details Activities (0) Areas (0) Regions (0) Abstract: In the Llucmajor aquifer system (Majorca Island, Spain) some geothermal evidences have appeared. This phenomenon is not isolated to Majorca and it is present in other areas, where it can be associated with structural conditions, especially to the extensional event suffered by the island after the Alpine Orogeny. However, the origin of this anomaly in Llucmajor is not well known, and there is no surface geological evidence of

400

Automating the determination of 3D protein structure  

SciTech Connect (OSTI)

The creation of an automated method for determining 3D protein structure would be invaluable to the field of biology and presents an interesting challenge to computer science. Unfortunately, given the current level of protein knowledge, a completely automated solution method is not yet feasible, therefore, our group has decided to integrate existing databases and theories to create a software system that assists X-ray crystallographers in specifying a particular protein structure. By breaking the problem of determining overall protein structure into small subproblems, we hope to come closer to solving a novel structure by solving each component. By generating necessary information for structure determination, this method provides the first step toward designing a program to determine protein conformation automatically.

Rayl, K.D.

1993-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "3d gravity inversion" 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

A Simple Proposal for Radial 3D Needlets  

E-Print Network [OSTI]

We present here a simple construction of a wavelet system for the three-dimensional ball, which we label \\emph{Radial 3D Needlets}. The construction envisages a data collection environment where an observer located at the centre of the ball is surrounded by concentric spheres with the same pixelization at different radial distances, for any given resolution. The system is then obtained by weighting the projector operator built on the corresponding set of eigenfunctions, and performing a discretization step which turns out to be computationally very convenient. The resulting wavelets can be shown to have very good localization properties in the real and harmonic domain; their implementation is computationally very convenient, and they allow for exact reconstruction as they form a tight frame systems. Our theoretical results are supported by an extensive numerical analysis.

Durastanti, Claudio; Hansen, Frode K; Marinucci, Domenico; Pesenson, Isaac Z

2014-01-01T23:59:59.000Z

402

Exploration 3-D Seismic Field Test/Native Tribes Initiative  

SciTech Connect (OSTI)

To determine current acquisition procedures and costs and to further the goals of the President's Initiative for Native Tribes, a seismic-survey project is to be conducted on Osage tribal lands. The goals of the program are to demonstrate the capabilities, costs, and effectiveness of 3-D seismic work in a small-operator setting and to determine the economics of such a survey. For these purposes, typical small-scale independent-operator practices are being followed and a shallow target chose in an area with a high concentration of independent operators. The results will be analyzed in detail to determine if there are improvements and/or innovations which can be easily introduced in field-acquisition procedures, in processing, or in data manipulation and interpretation to further reduce operating costs and to make the system still more active to the small-scale operator.

Carroll, Herbert B.; Chen, K.C.; Guo, Genliang; Johnson, W.I.; Reeves,T.K.; Sharma,Bijon

1999-04-27T23:59:59.000Z

403

3D deformation field throughout the interior of materials.  

SciTech Connect (OSTI)

This report contains the one-year feasibility study for our three-year LDRD proposal that is aimed to develop an experimental technique to measure the 3D deformation fields inside a material body. In this feasibility study, we first apply Digital Volume Correlation (DVC) algorithm to pre-existing in-situ Xray Computed Tomography (XCT) image sets with pure rigid body translation. The calculated displacement field has very large random errors and low precision that are unacceptable. Then we enhance these tomography images by setting threshold of the intensity of each slice. DVC algorithm is able to obtain accurate deformation fields from these enhanced image sets and the deformation fields are consistent with the global mechanical loading that is applied to the specimen. Through this study, we prove that the internal markers inside the pre-existing tomography images of aluminum alloy can be enhanced and are suitable for DVC to calculate the deformation field throughout the material body.

Jin, Huiqing; Lu, Wei-Yang

2013-09-01T23:59:59.000Z

404

3D Model of the San Emidio Geothermal Area  

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

The San Emidio geothermal system is characterized by a left-step in a west-dipping normal fault system that bounds the western side of the Lake Range. The 3D geologic model consists of 5 geologic units and 55 faults. Overlying Jurrassic-Triassic metasedimentary basement is a ~500 m-1000 m thick section of the Miocene lower Pyramid sequence, pre- syn-extensional Quaternary sedimentary rocks and post-extensional Quaternary rocks. 15-30º eastward dip of the stratigraphy is controlled by the predominant west-dipping fault set. Both geothermal production and injection are concentrated north of the step over in an area of closely spaced west dipping normal faults.

James E. Faulds

405

3D Model of the San Emidio Geothermal Area  

SciTech Connect (OSTI)

The San Emidio geothermal system is characterized by a left-step in a west-dipping normal fault system that bounds the western side of the Lake Range. The 3D geologic model consists of 5 geologic units and 55 faults. Overlying Jurrassic-Triassic metasedimentary basement is a ~500 m-1000 m thick section of the Miocene lower Pyramid sequence, pre- syn-extensional Quaternary sedimentary rocks and post-extensional Quaternary rocks. 15-30º eastward dip of the stratigraphy is controlled by the predominant west-dipping fault set. Both geothermal production and injection are concentrated north of the step over in an area of closely spaced west dipping normal faults.

James E. Faulds

2013-12-31T23:59:59.000Z

406

3D Model of the Neal Hot Springs Geothermal Area  

SciTech Connect (OSTI)

The Neal Hot Springs geothermal system lies in a left-step in a north-striking, west-dipping normal fault system, consisting of the Neal Fault to the south and the Sugarloaf Butte Fault to the north (Edwards, 2013). The Neal Hot Springs 3D geologic model consists of 104 faults and 13 stratigraphic units. The stratigraphy is sub-horizontal to dipping <10 degrees and there is no predominant dip-direction. Geothermal production is exclusively from the Neal Fault south of, and within the step-over, while geothermal injection is into both the Neal Fault to the south of the step-over and faults within the step-over.

Faulds, James E.

2013-12-31T23:59:59.000Z

407

3D Model of the Neal Hot Springs Geothermal Area  

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

The Neal Hot Springs geothermal system lies in a left-step in a north-striking, west-dipping normal fault system, consisting of the Neal Fault to the south and the Sugarloaf Butte Fault to the north (Edwards, 2013). The Neal Hot Springs 3D geologic model consists of 104 faults and 13 stratigraphic units. The stratigraphy is sub-horizontal to dipping <10 degrees and there is no predominant dip-direction. Geothermal production is exclusively from the Neal Fault south of, and within the step-over, while geothermal injection is into both the Neal Fault to the south of the step-over and faults within the step-over.

Faulds, James E.

408

3-D Seismic Methods For Geothermal Reservoir Exploration And  

Open Energy Info (EERE)

Methods For Geothermal Reservoir Exploration And Methods For Geothermal Reservoir Exploration And Assessment-Summary Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: 3-D Seismic Methods For Geothermal Reservoir Exploration And Assessment-Summary Details Activities (5) Areas (1) Regions (0) Abstract: A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally

409

3D Magnetotelluic characterization of the Coso Geothermal Field | Open  

Open Energy Info (EERE)

Magnetotelluic characterization of the Coso Geothermal Field Magnetotelluic characterization of the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3D Magnetotelluic characterization of the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: Electrical resistivity may contribute to progress in understanding geothermal systems by imaging the geometry, bounds and controlling structures in existing production, and thereby perhaps suggesting new areas for field expansion. To these ends, a dense grid of magnetotelluric (MT) stations plus a single line of contiguous bipole array profiling has been acquired over the east flank of the Coso geothermal system. Acquiring good quality MT data in producing geothermal systems is a challenge due to production related electromagnetic (EM) noise and, in the

410

NREL: Computational Science - Inverse Design  

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

Inverse Design Inverse Design The NREL Computational Science Center collaborates with the High Throughput and Inverse Band Structure (HT/IBS) Group within the Center for Inverse Design (CID) to research, design, and create materials with given target properties. The Center for Inverse Design is an Energy Frontier Research Center of the U.S. Department of Energy Office of Science. To address a crucial scientific grand challenge, the Center is pursuing a new approach to material science. Rather than using the conventional direct approach ("Given the structure, find the electronic properties"), we are using a "materials by inverse design" approach ("Given the desired property, find the structure"). Illustration of a blue arrow pointing to a graphic with three curved lines that represent an electronic structure and blue arrow pointing to a red and blue balls that represent an atomic configuration.

411

Painting-to-3D Model Alignment Via Discriminative Visual Elements  

E-Print Network [OSTI]

] as well as simplified models obtained from 3D mod- eling tools such as Google Sketchup. Example results

Paris-Sud XI, Université de

412

Final report: high resolution lensless 3D imaging of nanostructures with coherent x-rays  

SciTech Connect (OSTI)

Final report on the project "High resolution lensless 3D imaging of nanostructures with coherent x-rays"

Jacobsen, Chris

2014-12-07T23:59:59.000Z

413

3D Printed Molecules and Extended Solid Models for Teaching Symmetry and Point Groups  

Science Journals Connector (OSTI)

There are several full-color 3D printers available that can print multiple colors within one object. ... In contrast to the fragile color printing molecular model attempts, models printed on the Stratasys Dimension Elite 3D printer reported in this article using the ABS P430 model material and P400SR dissolvable support material consistently produced structures with excellent mechanical integrity. ... Both file preparation methods produced successful 3D prints of equal quality using a Stratasys Dimension Elite 3D printer. ...

Vincent F. Scalfani; Thomas P. Vaid

2014-04-18T23:59:59.000Z

414

CAD for 3D Circuits: Solutions and Challenges Sachin S. Sapatnekar  

E-Print Network [OSTI]

, it is essential to develop compuer-aided design techniques that are 3D- specific. This paper discusses problems

Sapatnekar, Sachin

415

3D Printing Phosphonium Ionic Liquid Networks with Mask Projection Microstereolithography  

Science Journals Connector (OSTI)

3D Printing Phosphonium Ionic Liquid Networks with Mask Projection Microstereolithography ... Additive manufacturing, often referred to as 3D printing, where objects are constructed in a layer-by-layer fashion, enables the design and creation of geometrically complex objects with tailored topology, and thus, functionality. ... Herein, we report photopolymerization strategies coupled with additive manufacturing to achieve 3D printed phosphonium PILs in order to demonstrate the first example of 3D printing of an ion-conducting polymer. ...

Alison R. Schultz; Philip M. Lambert; Nicholas A. Chartrain; David M. Ruohoniemi; Zhiyang Zhang; Chainika Jangu; Musan Zhang; Christopher B. Williams; Timothy E. Long

2014-11-06T23:59:59.000Z

416

Monolithic Integrations of Slanted Silicon Nanostructures on 3D Microstructures and Their Application to Surface Enhanced Raman Spectroscopy  

E-Print Network [OSTI]

We demonstrated fabrication of black silicon with slanted nanocone array on both planar and 3D micro and meso scale structures produced by a high-throughput lithography-free oblique-angle plasma etching process. Nanocones with gradual change in height were created on the same piece of silicon. The relation between the slanted angle of nanocones and incident angle of directional plasma is experimentally investigated. In order to demonstrate the monolithic integration of nanostructures on micro and meso scale non-planar surfaces, nanocone forest is fabricated on non-planar silicon surfaces in various morphologies such as silicon atomic force microscopy (AFM) tips and pyramidal pits. By integrating nanocones on inverse silicon micro-pyramid array devices, we further improved the surface enhanced Raman scattering (SERS) enhancement property of this optimized commercial SERS substrate by several folds even when using 66% less noble metal coating. We investigated the length gradient dependence and asymmetric proper...

Xu, Zhida

2014-01-01T23:59:59.000Z

417

A study of generalized inverses  

E-Print Network [OSTI]

A STUDY OF GENERALIZED INVERSES A Thesis by NANCY LEE MCKINNEY Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1973 Major Subject: Mathematics A... STUDY OF GENERALIZED INVERSES A Thesis by NANCY LEE MCKINNEY Approved as to style and content by: airman o ittee Hea o epartment e er Me er August 1973 ABSTRACT A Study of Generalized Inverses. (August 1973) Nancy Lee NcKinney, B. A...

McKinney, Nancy Lee

1973-01-01T23:59:59.000Z

418

A User Study Comparing 3D Modeling with Silhouettes and Google SketchUp  

E-Print Network [OSTI]

We describe a user study comparing 3D Modeling with Silhouettes and Google SketchUp. In the user study, ten users were asked to create 3D models of three different objects, using either 3D Modeling with Silhouettes or ...

Igarashi, Takeo

2010-05-05T23:59:59.000Z

419

Recovery of 3D Solar Magnetic Field Model Parameter Using Image Structure Matching  

Science Journals Connector (OSTI)

An approach to recover a 3D solar magnetic field model parameter using intensity images of the Sun's corona is introduced. The approach is a quantitative approach in which the 3D model parameter is determined via an image structure matching scheme. The ... Keywords: 3D Parameter Recovery, Image-based Modeling, Structure Matching

Jong Kwan Lee; G. Allen Gary

2009-05-01T23:59:59.000Z

420

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 1 A Rigorous and Efficient Analysis of 3D Printed  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 1 A Rigorous and Efficient Analysis of 3D Printed of structures with multiple vertical strips running in multilayer environment. Index Terms-- Multilayered 3D is developed to accurately simulate 3D structures in multilayer environment [1], and to simultaneously simulate

Aksun, M. Irsadi

Note: This page contains sample records for the topic "3d gravity inversion" 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

Department of Mechanical Engineering Spring 2013 3D Printed Medical Device  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Spring 2013 3D Printed Medical Device Overview This project aimed to develop a 3D-printed everting structure for use in conjunction with current endosurgical/concept and that our main form of manufacturing revolved around 3D-printing, which allowed us to quickly make

Demirel, Melik C.

422

Production of 3D Structures in Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III*  

E-Print Network [OSTI]

Production of 3D Structures in Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D from our laboratory show a modified formula of hot melt ink that can be used in 3D thermal wax printing. Fleming III* Keywords: 3D Structure, Hot Melt, Blowing Agents, Calorimetry Abstract The ability to form

Fleming, Paul D. "Dan"

423

COREGISTRATION OF DSM AND 3D POINT CLOUDS ACQUIRED BY A MOBILE MAPPING SYSTEM  

E-Print Network [OSTI]

COREGISTRATION OF DSM AND 3D POINT CLOUDS ACQUIRED BY A MOBILE MAPPING SYSTEM Corregistro do DSM e Clouds; DSM. 1. INTRODUCTION The production of realistic 3D map databases is a matter of increasing (DSM) obtained by correlation between aerial images with 20x20 cm horizontal resolution. (Right) Lara3D

Paris-Sud XI, Université de

424

Customization and 3D printing: a challenging playground for software product lines  

Science Journals Connector (OSTI)

3D printing is gaining more and more momentum to build customized product in a wide variety of fields. We conduct an exploratory study of Thingiverse, the most popular Website for sharing user-created 3D design files, in order to establish a possible ... Keywords: 3D printing, customization, software product lines

Mathieu Acher, Benoit Baudry, Olivier Barais, Jean-Marc Jézéquel

2014-09-01T23:59:59.000Z

425

Charge Collection Measurements in single-type column 3D Sensors  

E-Print Network [OSTI]

Charge Collection Measurements in single-type column 3D Sensors M. Scaringella*, A. Polyakov, and H sensors. In particular, 3D detectors with columns of both n-and p-doping are considered to be especially-substrate [5]. The principle of the single-type column 3D sensors is shown in Fig. 1. Their advantages over

California at Santa Cruz, University of

426

A 2D/3D Hybrid Geographical Information System Stephen Brooks*  

E-Print Network [OSTI]

the exploration, presentation and manipulation of geographical data. 3D maps can be used by GIS specialists is a 3D marine GIS that supports real-time input and texture mapped imagery using a simple viewpoint Abstract We present a unique Geographical Information System (GIS) that seamlessly integrates 2D and 3D

Brooks, Stephen

427

ROBOPuppet: Low-Cost, 3D Printed Miniatures for Teleoperating Full-Size Robots  

E-Print Network [OSTI]

ROBOPuppet: Low-Cost, 3D Printed Miniatures for Teleoperating Full-Size Robots Anna Eilering of the robot links, which are then 3D printed and assembled. This procedure is generalizable to variety to target robot. smaller scale suitable for desktop use. The puppet is a 3D- printed miniature of the target

Hauser, Kris

428

Planning Locally Optimal, Curvature-Constrained Trajectories in 3D using Sequential Convex Optimization  

E-Print Network [OSTI]

, bevel-tip medical needles, planning curvature-constrained channels in 3D printed implants for targeted for perturbations. Our ap- proach can also be used for designing optimized channel layouts within 3D printed is the design of multiple bounded curvature channels in intracavitary 3D printed im- plants through which

Abbeel, Pieter

429

A Series of Tubes: Adding Interactivity to 3D Prints Using Internal Pipes  

E-Print Network [OSTI]

A Series of Tubes: Adding Interactivity to 3D Prints Using Internal Pipes Valkyrie Savage valkyrie flexibility and potential. Author Keywords Fabrication; 3D Printing; Interactive Objects; Design Tools ACM. Recently, human-computer interaction researchers have be- gun to explore adding interaction to 3D printed

Zakhor, Avideh

430

Custom 3D-Printed Rollers for Frieze Pattern Cookies Robert Hanson  

E-Print Network [OSTI]

Custom 3D-Printed Rollers for Frieze Pattern Cookies Robert Hanson Towson University, Emeritus a method for converting images of repeating patterns, e.g., Roman friezes or Escher tessellations, into 3D-printed the world of mathematics and the art of cooking. Fractal cookies based on stretching and folding [1] and 3D-printed

431

Planning Curvature and Torsion Constrained Ribbons in 3D with Application to Intracavitary Brachytherapy  

E-Print Network [OSTI]

multiple smooth channels through a 3D printed structure for a healthcare applica- tion and is relevant 3D printed implants to temporarily insert high-dose radioactive sources to reach and cover tumors] demonstrated that 3D printing can be used to design customized implants that conform to the patient anatomy

Abbeel, Pieter

432

Manipulating complex network structures in virtual reality and 3D printing of the results  

E-Print Network [OSTI]

Manipulating complex network structures in virtual reality and 3D printing of the results Alberto the results at any time for direct 3D printing. 1. INTRODUCTION Although its first appearance on the market can be tracked up to three decades ago, stereolithography (also known as 3D printing) has become

Verschure, Paul

433

Bridging the Gap: Automated Steady Scaffoldings for 3D Printing Jrmie Dumas  

E-Print Network [OSTI]

Bridging the Gap: Automated Steady Scaffoldings for 3D Printing J�r�mie Dumas Universit� de Figure 1: The upper leg of the Poppy robot (www.poppy-project.org) cannot be 3D printed on low cost FDM usage. Abstract Fused Filament Fabrication (FFF) is the process of 3D printing ob- jects from melted

Lévy, Bruno

434

Customization and 3D Printing: A Challenging Playground for Software Product Lines  

E-Print Network [OSTI]

Customization and 3D Printing: A Challenging Playground for Software Product Lines Mathieu Acher firstname.lastname@irisa.fr ABSTRACT 3D printing is gaining more and more momentum to build customized. We provide hints that SPL-alike techniques are practically used in 3D printing and thus relevant

Boyer, Edmond

435

3D User Interfaces: New Directions and New Perspectives Doug A. Bowman*  

E-Print Network [OSTI]

1 3D User Interfaces: New Directions and New Perspectives Doug A. Bowman* , Sabine Coquillart ABSTRACT Three-dimensional user interfaces (3D UIs) allow users to interact with virtual objects, environments, or information using direct 3D input in the physical and/or virtual space. With the advent

Stürzlinger, Wolfgang

436

Efficient 3D shape matching and retrieval using a concrete radialized spherical projection representation  

E-Print Network [OSTI]

Efficient 3D shape matching and retrieval using a concrete radialized spherical projection We present a 3D shape retrieval methodology based on the theory of spherical harmonics. Using PCA on the face normals of the model. The 3D model is decomposed into a set of spherical functions

Paris-Sud XI, Université de

437

3D-mesh models: view-based indexing and structural analysis  

E-Print Network [OSTI]

3D-mesh models: view-based indexing and structural analysis Mohamed Daoudi, Tarik Filali Ansary.daoudi@lifl.fr, tarik.filali@lifl.fr, julien.tierny@lifl.fr, jean-philippe.vandeborre@lifl.fr Abstract. 3D-mesh models applications, medical or military simulations, video games and so on. Indexing and analyzing these 3D data

Paris-Sud XI, Université de

438

3D Interactive Room Organizer Eranda De Alwis and Baihua Li  

E-Print Network [OSTI]

3D Interactive Room Organizer Eranda De Alwis and Baihua Li Department of Computing and Mathematics in position. To resolve the problem, we present the prototype implementation of a web-based 3D interactive to interact with furniture and other elements in the room, and arrange them properly in 3D world. The user can

Li, Baihua

439

3D Downtown Phoenix Modeling This project is to develop the efficient and effective method for  

E-Print Network [OSTI]

3D Downtown Phoenix Modeling ABSTRACT This project is to develop the efficient and effective method for creating 3D city models that will be used with GIS (Geographical Information Systems) data in VR (Virtual Reality) environment. Here introduces the modeling process to create 3D city model from aerial photos

Hall, Sharon J.

440

3D VIDEO QUALITY EVALUATION WITH DEPTH QUALITY VARIATIONS Gustavo Leon, Hari Kalva, and Borko Furht  

E-Print Network [OSTI]

3D VIDEO QUALITY EVALUATION WITH DEPTH QUALITY VARIATIONS Gustavo Leon, Hari Kalva, and Borko Furht on 3D video perception on autostereoscopic displays. This study was done using objective as well image quality and compression on the perceived 3D experience. Another objective is to evaluate the use

Kalva, Hari

Note: This page contains sample records for the topic "3d gravity inversion" 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 Human Video Retrieval: from Pose to Motion Matching R. Slama1,2  

E-Print Network [OSTI]

3D Human Video Retrieval: from Pose to Motion Matching R. Slama1,2 , H. Wannous1,2 and M. Daoudi2, France Abstract 3D video retrieval is a challenging problem lying at the heart of many primary research areas in computer graph- ics and computer vision applications. In this paper, we present a new 3D human

Paris-Sud XI, Université de

442

3D CONTENT-BASED RETRIEVAL IN ARTWORK DATABASES David Gorisse(1)  

E-Print Network [OSTI]

3D CONTENT-BASED RETRIEVAL IN ARTWORK DATABASES David Gorisse(1) , Matthieu Cord(2) , Michel Jordan, France ABSTRACT In this paper, we present first results obtained in the frame of the EROS-3D project, which aims at dealing with a collection of artwork 3D models, i.e. visualize them, classify them

Paris-Sud XI, Université de

443

3D/4D MODELLING, VISUALIZATION AND INFORMATION FRAMEWORKS: CURRENT U.S. GEOLOGICAL SURVEY PRACTICE  

E-Print Network [OSTI]

33 3D/4D MODELLING, VISUALIZATION AND INFORMATION FRAMEWORKS: CURRENT U.S. GEOLOGICAL SURVEY to visualize and model geologic data and information in 3 spatial dimensions (3D) and sometimes adding time in visualizing and coupling geologic, hydrologic, atmospheric, and biologic processes together into 3D/4D

444

3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data  

E-Print Network [OSTI]

3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data Yalin Wang1 , Xianfeng Gu2 , Paul Department, Harvard University, Cambridge, MA, USA Abstract. We developed two techniques to address 3D volume algorithm finds a harmonic map from a 3-manifold to a 3D solid sphere and the second is a novel sphere

Thompson, Paul

445

SEEING 3D OBJECTS IN A SINGLE 2D IMAGE Diego Rother  

E-Print Network [OSTI]

SEEING 3D OBJECTS IN A SINGLE 2D IMAGE By Diego Rother and Guillermo Sapiro IMA Preprint SeriesD segmentation, object recognition, and 3D reconstruction from a single image is introduced in this paper. The proposed approach partitions 3D space into voxels and estimates the voxel states

446

3D MHD Free Surface Fluid Flow Simulation Based on Magnetic-Field Induction Equations  

E-Print Network [OSTI]

1 3D MHD Free Surface Fluid Flow Simulation Based on Magnetic-Field Induction Equations H.L. HUANG Huang@fusion.ucla.edu Abstract: The purpose of this paper is to present our recent efforts on 3D MHD-plane magnetic field configurations have shown that 3D MHD effects from a surface normal field gradient cause

California at Los Angeles, University of

447

3D-Model Search Engine from Photos Tarik Filali Ansary  

E-Print Network [OSTI]

3D-Model Search Engine from Photos Tarik Filali Ansary LIFL UMR CNRS/USTL 8022 Univ. Lille 1 Univ. Lille 1 ­ France daoudi@lifl.fr ABSTRACT In this paper, we present the FOX-MIIRE 3D-Model Search uses statisti- cal model distribution scores to select the optimal number of views to characterise a 3D

Vandeborre, Jean-Philippe

448

3D Human Motion Analysis Framework for Shape Similarity and Retrieval  

E-Print Network [OSTI]

3D Human Motion Analysis Framework for Shape Similarity and Retrieval Rim Slamaa,b , Hazem Wannousa, Villeneuve d'Ascq, France c Institut Mines-T´el´ecom / T´el´ecom Lille, Villeneuve d'Ascq, France Abstract 3D the problem of 3D shape representation and shape similarity in human video sequences. Our shape representation

Paris-Sud XI, Université de

449

On 3D retrieval from photos Tarik Filali Ansary, Jean-Phillipe Vandeborre, Mohamed Daoudi  

E-Print Network [OSTI]

On 3D retrieval from photos Tarik Filali Ansary, Jean-Phillipe Vandeborre, Mohamed Daoudi FOX}@enic.fr http://www-rech.enic.fr/fox-miire Abstract In this paper, we propose a method for 3D-model retrieval from one or more photos. This method provides an "opti- mal" selection of 2D views to represent a 3D

Vandeborre, Jean-Philippe

450

3D-Model view characterization using equilibrium planes Adrien Theetten1  

E-Print Network [OSTI]

3D-Model view characterization using equilibrium planes Adrien Theetten1 , Tarik Filali Ansary1 to characteristic views. Abstract We propose a new method for 3D-mesh model charac- teristic view selection. It consists in using the views that come from the equilibrium states of a 3D-model: they cor- respond

Paris-Sud XI, Université de

451

3D finite amplitude folding: Implications for stress evolution during crustal and lithospheric deformation  

E-Print Network [OSTI]

3D finite amplitude folding: Implications for stress evolution during crustal and lithospheric-layer folding to study this instability in 3D. It is demonstrated that linear theories correctly describe insensitive to the applied background shortening directions. Furthermore, the 3D folding instability reduces

Kaus, Boris

452

3D Cache Hierarchy Optimization Leonid Yavits, Amir Morad, Ran Ginosar  

E-Print Network [OSTI]

3D Cache Hierarchy Optimization Leonid Yavits, Amir Morad, Ran Ginosar Department of Electrical@tx.technion.ac.il, ran@ee.technion.ac.il Abstract--3D integration has the potential to improve the scalability and performance of Chip Multiprocessors (CMP). A closed form analytical solution for optimizing 3D CMP cache

Ginosar, Ran

453

Computed 3D visualisation of an extinct cephalopod using computer tomographs  

Science Journals Connector (OSTI)

The first 3D visualisation of a heteromorph cephalopod species from the Southern Alps (Dolomites, northern Italy) is presented. Computed tomography, palaeontological data and 3D reconstructions were included in the production of a movie, which shows ... Keywords: 3D visualisation, Cephalopods, Computer tomography, Cretaceous, Palaeontology

Alexander Lukeneder

2012-08-01T23:59:59.000Z

454

Assessing the protective effect of mountain forests against rockfall using a 3D simulation model  

E-Print Network [OSTI]

Assessing the protective effect of mountain forests against rockfall using a 3D simulation model and compared the results obtained with the 3D simulation model RockyFor with empirical data on tree impacts; Rockfall; 3D simulation model; Swiss Alps 1. Introduction Many mountain forests effectively protect people

Stoffel, Markus

455

3-D Magnetotelluric Investigations for geothermal exploration in Martinique (Lesser Antilles). Characteristic Deep Resistivity Structures, and Shallow Resistivity Distribution Matching Heliborne TEM Results  

E-Print Network [OSTI]

Within the framework of a global French program oriented towards the development of renewable energies, Martinique Island (Lesser Antilles, France) has been extensively investigated (from 2012 to 2013) through an integrated multi-methods approach, with the aim to define precisely the potential geothermal ressources, previously highlighted (Sanjuan et al., 2003). Amongst the common investigation methods deployed, we carried out three magnetotelluric (MT) surveys located above three of the most promising geothermal fields of Martinique, namely the Anses d'Arlet, the Montagne Pel{\\'e}e and the Pitons du Carbet prospects. A total of about 100 MT stations were acquired showing single or multi-dimensional behaviors and static shift effects. After processing data with remote reference, 3-D MT inversions of the four complex elements of MT impedance tensor without pre-static-shift correction, have been performed for each sector, providing three 3-D resistivity models down to about 12 to 30 km depth. The sea coast effe...

Coppo, Nicolas; Girard, Jean-François; Wawrzyniak, Pierre; Hautot, Sophie; Tarits, Pascal; Jacob, Thomas; Martelet, Guillaume; Mathieu, Francis; Gadalia, Alain; Bouchot, Vincent; Traineau, Hervé

2015-01-01T23:59:59.000Z

456

Modifications of gravity  

Science Journals Connector (OSTI)

...requirement of cold dark matter (CDM...gravity|cosmology|dark energy| 1. Introduction...cosmology). The discovery that the expansion...the form of cold dark matter (CDM...and perhaps dark energy (DE) [22-26...

2011-01-01T23:59:59.000Z

457

Two approaches to 3D reconstruction in NMR zeugmatography  

SciTech Connect (OSTI)

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

458

Field Mapping At Walker Lake Valley Area (Shoffner, Et Al., 2010...  

Open Energy Info (EERE)

N. Hinz, A. Sabin, M. Lazaro, S. Alm (2010) Understanding Fault Characteristics And Sediment Depth For Geothermal Exploration Using 3D Gravity Inversion In Walker Valley, Nevada...

459

3D Model of the Tuscarora Geothermal Area  

SciTech Connect (OSTI)

The Tuscarora geothermal system sits within a ~15 km wide left-step in a major west-dipping range-bounding normal fault system. The step over is defined by the Independence Mountains fault zone and the Bull Runs Mountains fault zone which overlap along strike. Strain is transferred between these major fault segments via and array of northerly striking normal faults with offsets of 10s to 100s of meters and strike lengths of less than 5 km. These faults within the step over are one to two orders of magnitude smaller than the range-bounding fault zones between which they reside. Faults within the broad step define an anticlinal accommodation zone wherein east-dipping faults mainly occupy western half of the accommodation zone and west-dipping faults lie in the eastern half of the accommodation zone. The 3D model of Tuscarora encompasses 70 small-offset normal faults that define the accommodation zone and a portion of the Independence Mountains fault zone, which dips beneath the geothermal field. The geothermal system resides in the axial part of the accommodation, straddling the two fault dip domains. The Tuscarora 3D geologic model consists of 10 stratigraphic units. Unconsolidated Quaternary alluvium has eroded down into bedrock units, the youngest and stratigraphically highest bedrock units are middle Miocene rhyolite and dacite flows regionally correlated with the Jarbidge Rhyolite and modeled with uniform cumulative thickness of ~350 m. Underlying these lava flows are Eocene volcanic rocks of the Big Cottonwood Canyon caldera. These units are modeled as intracaldera deposits, including domes, flows, and thick ash deposits that change in thickness and locally pinch out. The Paleozoic basement of consists metasedimenary and metavolcanic rocks, dominated by argillite, siltstone, limestone, quartzite, and metabasalt of the Schoonover and Snow Canyon Formations. Paleozoic formations are lumped in a single basement unit in the model. Fault blocks in the eastern portion of the model are tilted 5-30 degrees toward the Independence Mountains fault zone. Fault blocks in the western portion of the model are tilted toward steeply east-dipping normal faults. These opposing fault block dips define a shallow extensional anticline. Geothermal production is from 4 closely-spaced wells, that exploit a west-dipping, NNE-striking fault zone near the axial part of the accommodation zone.

Faulds, James E.

2013-12-31T23:59:59.000Z

460

Abstract--3D IC technologies have recently attracted great attention due to the potential performance improvement, power  

E-Print Network [OSTI]

Abstract--3D IC technologies have recently attracted great attention due to the potential a 3D physical design flow based on OpenAccess (named 3D-Craft) to facilitate the rapid adoption of 3D IC technologies. The OpenAccess extension for 3D-Craft is discussed, and the key components including

Cong, Jason "Jingsheng"

Note: This page contains sample records for the topic "3d gravity inversion" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Purely affine Gravity  

E-Print Network [OSTI]

We develop a topological theory of gravity with torsion where metric has a dynamical rather than a kinematical origin. This approach towards gravity resembles pre-geometrical approaches in which a fundamental metric does not exist, but the affine connection gives place to a local inertial structure. Such feature reminds us of Mach's principle, that assumes the inertial forces should have dynamical origin. Additionally, a Newtonian gravitational force is obtained in the non-relativistic limit of the theory.

Skirzewski, Aureliano

2014-01-01T23:59:59.000Z

462

Purely affine Gravity  

E-Print Network [OSTI]

We develop a topological theory of gravity with torsion where metric has a dynamical rather than a kinematical origin. This approach towards gravity resembles pre-geometrical approaches in which a fundamental metric does not exist, but the affine connection gives place to a local inertial structure. Such feature reminds us of Mach's principle, that assumes the inertial forces should have dynamical origin. Additionally, a Newtonian gravitational force is obtained in the non-relativistic limit of the theory.

Aureliano Skirzewski; Oscar Castillo-Felisola

2014-10-22T23:59:59.000Z

463

Inverse Problems and Industrial Mathematics  

E-Print Network [OSTI]

line coke ore charging of ore and coke layers indirect reduction of ore by CO and H2 Inverse Problems in process parameters - charging strategy (distribution of coke-ore layers) - different raw materials Inverse and uniform quality of produced liquid iron - the decrease of coke consumption - a uniform gas mass flow

Fulmek, Markus

464

Upper mantle structure of South America from joint inversion of waveforms and fundamental mode group velocities of Rayleigh waves  

E-Print Network [OSTI]

Upper mantle structure of South America from joint inversion of waveforms and fundamental mode tomographic S wave velocity model for the upper mantle beneath South America is presented. We developed three-dimensional (3-D) upper mantle S velocity model and a Moho depth model for South America, which

van der Lee, Suzan

465

Three-dimensional self-potential inversion for subsurface DNAPL contaminant detection at the Savannah River Site, South Carolina  

E-Print Network [OSTI]

as an electrochemical source for the SP signals measured in this investigation. A 3-D self-potential inversion algorithm a long-term groundwater hazard. Remediation of sites contaminated with these chemicals therefore remains an important issue today. The goal of this investigation is to characterize underground contaminant

Sailhac, Pascal

466

3-D Finite Element Analyses of the Egan Cavern Field  

SciTech Connect (OSTI)

Three-dimensional finite element analyses were performed for the two gas-filled storage caverns at the Egan field, Jennings dome, Louisiana. The effects of cavern enlargement on surface subsidence, storage loss, and cavern stability were investigated. The finite element model simulated the leaching of caverns to 6 and 8 billion cubic feet (BCF) and examined their performance at various operating conditions. Operating pressures varied from 0.15 psi/ft to 0.9 psi/ft at the bottom of the lowest cemented casing. The analysis also examined the stability of the web or pillar of salt between the caverns under differential pressure loadings. The 50-year simulations were performed using JAC3D, a three dimensional finite element analysis code for nonlinear quasistatic solids. A damage criterion based on onset of dilatancy was used to evaluate cavern instability. Dilation results from the development of microfractures in salt and, hence, potential increases in permeability onset occurs well before large scale failure. The analyses predicted stable caverns throughout the 50-year period for the range of pressures investigated. Some localized salt damage was predicted near the bottom walls of the caverns if the caverns are operated at minimum pressure for long periods of time. Volumetric cavern closures over time due to creep were moderate to excessive depending on the salt creep properties and operating pressures. However, subsidence above the cavern field was small and should pose no problem, to surface facilities.

Klamerus, E.W.; Ehgartner, B.L.

1999-02-01T23:59:59.000Z

467

Evolutions in 3D numerical relativity using fixed mesh refinement  

E-Print Network [OSTI]

We present results of 3D numerical simulations using a finite difference code featuring fixed mesh refinement (FMR), in which a subset of the computational domain is refined in space and time. We apply this code to a series of test cases including a robust stability test, a nonlinear gauge wave and an excised Schwarzschild black hole in an evolving gauge. We find that the mesh refinement results are comparable in accuracy, stability and convergence to unigrid simulations with the same effective resolution. At the same time, the use of FMR reduces the computational resources needed to obtain a given accuracy. Particular care must be taken at the interfaces between coarse and fine grids to avoid a loss of convergence at higher resolutions, and we introduce the use of "buffer zones" as one resolution of this issue. We also introduce a new method for initial data generation, which enables higher-order interpolation in time even from the initial time slice. This FMR system, "Carpet", is a driver module in the freely available Cactus computational infrastructure, and is able to endow generic existing Cactus simulation modules ("thorns") with FMR with little or no extra effort.

Erik Schnetter; Scott H. Hawley; Ian Hawke

2004-03-02T23:59:59.000Z

468

Reynolds-stress model prediction of 3-D duct flows  

E-Print Network [OSTI]

The paper examines the impact of different modelling choices in second-moment closures by assessing model performance in predicting 3-D duct flows. The test-cases (developing flow in a square duct [Gessner F.B., Emery A.F.: {\\em ASME J. Fluids Eng.} {\\bf 103} (1981) 445--455], circular-to-rectangular transition-duct [Davis D.O., Gessner F.B.: {\\em AIAA J.} {\\bf 30} (1992) 367--375], and \\tsn{S}-duct with large separation [Wellborn S.R., Reichert B.A., Okiishi T.H.: {\\em J. Prop. Power} {\\bf 10} (1994) 668--675]) include progressively more complex strains. Comparison of experimental data with selected 7-equation models (6 Reynolds-stress-transport and 1 scale-determining equations), which differ in the closure of the velocity/pressure-gradient tensor $\\Pi_{ij}$, suggests that rapid redistribution controls separation and secondary-flow prediction, whereas, inclusion of pressure-diffusion modelling improves reattachment and relaxation behaviour.

Gerolymos, G A

2014-01-01T23:59:59.000Z

469

GPU-accelerated denoising of 3D magnetic resonance images  

SciTech Connect (OSTI)

The raw computational power of GPU accelerators enables fast denoising of 3D MR images using bilateral filtering, anisotropic diffusion, and non-local means. In practice, applying these filtering operations requires setting multiple parameters. This study was designed to provide better guidance to practitioners for choosing the most appropriate parameters by answering two questions: what parameters yield the best denoising results in practice? And what tuning is necessary to achieve optimal performance on a modern GPU? To answer the first question, we use two different metrics, mean squared error (MSE) and mean structural similarity (MSSIM), to compare denoising quality against a reference image. Surprisingly, the best improvement in structural similarity with the bilateral filter is achieved with a small stencil size that lies within the range of real-time execution on an NVIDIA Tesla M2050 GPU. Moreover, inappropriate choices for parameters, especially scaling parameters, can yield very poor denoising performance. To answer the second question, we perform an autotuning study to empirically determine optimal memory tiling on the GPU. The variation in these results suggests that such tuning is an essential step in achieving real-time performance. These results have important implications for the real-time application of denoising to MR images in clinical settings that require fast turn-around times.

Howison, Mark; Wes Bethel, E.

2014-05-29T23:59:59.000Z

470

2D/3D registration algorithm for lung brachytherapy  

SciTech Connect (OSTI)

Purpose: A 2D/3D registration algorithm is proposed for registering orthogonal x-ray images with a diagnostic CT volume for high dose rate (HDR) lung brachytherapy. Methods: The algorithm utilizes a rigid registration model based on a pixel/voxel intensity matching approach. To achieve accurate registration, a robust similarity measure combining normalized mutual information, image gradient, and intensity difference was developed. The algorithm was validated using a simple body and anthropomorphic phantoms. Transfer catheters were placed inside the phantoms to simulate the unique image features observed during treatment. The algorithm sensitivity to various degrees of initial misregistration and to the presence of foreign objects, such as ECG leads, was evaluated. Results: The mean registration error was 2.2 and 1.9 mm for the simple body and anthropomorphic phantoms, respectively. The error was comparable to the interoperator catheter digitization error of 1.6 mm. Preliminary analysis of data acquired from four patients indicated a mean registration error of 4.2 mm. Conclusions: Results obtained using the proposed algorithm are clinically acceptable especially considering the complications normally encountered when imaging during lung HDR brachytherapy.

Zvonarev, P. S. [McMaster University, Medical Physics and Applied Radiation Sciences, Hamilton, Ontario L8S 4L8 (Canada); Farrell, T. J.; Hunter, R.; Wierzbicki, M.; Hayward, J. E. [McMaster University, Medical Physics and Applied Radiation Sciences, Hamilton, Ontario L8S 4L8 (Canada); Juravinski Cancer Centre, Medical Physics, Hamilton, Ontario L8V 5C2 (Canada); Sur, R. K. [McMaster University, Medical Physics and Applied Radiation Sciences, Hamilton, Ontario L8S 4L8 (Canada); Juravinski Cancer Centre, Radiation Oncology, Hamilton, Ontario L8V 5C2 (Canada)

2013-02-15T23:59:59.000Z

471

Non-Paraxial Wave Analysis of 3D Airy Beams  

E-Print Network [OSTI]

The 3D Airy beam (AiB) is thoroughly explored from a wave-theory point of view. We utilize the exact spectral integral for the AiB to derive local ray-based solutions that do not suffer from the limitations of the conventional parabolic equation (PE) solution, and are valid far beyond the paraxial zone and for longer ranges. The ray topology near the main lobe of the AiB delineates a hyperbolic umilic diffraction catastrophe, consisting of a cusped double-layered caustic, but this caustic is deformed in the far range where the field loses its beam shape. The field in the vicinity of this caustic is described uniformly by a hyperbolic umilic canonical integral which is structured explicitly on the local geometry of the caustic as obtained from the initial field distribution. In order to accommodate the finite-energy AiB we also modify the canonical integral by adding a complex loss parameter. The canonical integral is calculated using a series expansion and the results are used to identify the validity zone of the conventional PE solution. The analysis is performed within the framework of the non-dispersive AiB where the aperture field is scaled with frequency such that the ray skeleton is frequency-independent. This scaling enables an extension of the theory to the ultra wide band (UWB) regime and ensures that the pulsed field propagates along the curved beam trajectory without dispersion, as will be demonstrated in a subsequent publication.

Y. Kaganovsky; E. Heyman

2011-12-14T23:59:59.000Z

472

Evolution of 3D Boson Stars with Waveform Extraction  

E-Print Network [OSTI]

Numerical results from a study of boson stars under nonspherical perturbations using a fully general relativistic 3D code are presented together with the analysis of emitted gravitational radiation. We have constructed a simulation code suitable for the study of scalar fields in space-times of general symmetry by bringing together components for addressing the initial value problem, the full evolution system and the detection and analysis of gravitational waves. Within a series of numerical simulations, we explicitly extract the Zerilli and Newman-Penrose scalar $\\Psi_4$ gravitational waveforms when the stars are subjected to different types of perturbations. Boson star systems have rapidly decaying nonradial quasinormal modes and thus the complete gravitational waveform could be extracted for all configurations studied. The gravitational waves emitted from stable, critical, and unstable boson star configurations are analyzed and the numerically observed quasinormal mode frequencies are compared with known linear perturbation results. The superposition of the high frequency nonspherical modes on the lower frequency spherical modes was observed in the metric oscillations when perturbations with radial and nonradial components were applied. The collapse of unstable boson stars to black holes was simulated. The apparent horizons were observed to be slightly nonspherical when initially detected and became spherical as the system evolved. The application of nonradial perturbations proportional to spherical harmonics is observed not to affect the collapse time. An unstable star subjected to a large perturbation was observed to migrate to a stable configuration.

Jayashree Balakrishna; Ruxandra Bondarescu; Gregory Daues; F. Siddhartha Guzman; Edward Seidel

2006-02-20T23:59:59.000Z

473

A parallel algorithm for 3D dislocation dynamics  

SciTech Connect (OSTI)

Dislocation dynamics (DD), a discrete dynamic simulation method in which dislocations are the fundamental entities, is a powerful tool for investigation of plasticity, deformation and fracture of materials at the micron length scale. However, severe computational difficulties arising from complex, long-range interactions between these curvilinear line defects limit the application of DD in the study of large-scale plastic deformation. We present here the development of a parallel algorithm for accelerated computer simulations of DD. By representing dislocations as a 3D set of dislocation particles, we show here that the problem of an interacting ensemble of dislocations can be converted to a problem of a particle ensemble, interacting with a long-range force field. A grid using binary space partitioning is constructed to keep track of node connectivity across domains. We demonstrate the computational efficiency of the parallel micro-plasticity code and discuss how O(N) methods map naturally onto the parallel data structure. Finally, we present results from applications of the parallel code to deformation in single crystal fcc metals.

Wang Zhiqiang [University of California - Los Angeles, Los Angeles, CA 90095-1597 (United States)]. E-mail: zhiqiang@lanl.gov; Ghoniem, Nasr [University of California - Los Angeles, Los Angeles, CA 90095-1597 (United States); Swaminarayan, Sriram [University of California, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); LeSar, Richard [University of California, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

2006-12-10T23:59:59.000Z

474

Real-time monitoring of quorum sensing in 3D-printed bacterial aggregates using scanning electrochemical microscopy  

Science Journals Connector (OSTI)

...manipulating small populations. Micro-3D printing is a lithographic technique capable...cells or small populations. This 3D-printing strategy can organize bacteria...behaviors. Here, we combined micro-3D printing and scanning electrochemical...

Jodi L. Connell; Jiyeon Kim; Jason B. Shear; Allen J. Bard; Marvin Whiteley

2014-01-01T23:59:59.000Z

475

A fully 3D atomistic quantum mechanical study on random dopant induced effects in 25nm MOSFETs  

E-Print Network [OSTI]

A Fully 3D Atomistic Quantum Mechanical Study on RandomWang* Abstract— We present a fully 3D atomistic quantum me-Dopant ?uctuation, MOSFETs, 3D, threshold, LCBB, quantum

Jiang, Xiang-Wei

2008-01-01T23:59:59.000Z

476

Roles of 3D traction forces in migration and focal adhesion dynamics of bovine aortic endothelial cells  

E-Print Network [OSTI]

BY BAEC. 51 FIG. 3-21. 3D DISPLACEMENT FIELD BY BAECPAXILLIN 52 xii FIG. 3-22. 3D TRACTION FORCE FIELD BY BAEC61 FIG. 3-31. 3D DISPLACEMENT FIELD OF GFP-FAK TRANSFECTED

Hur, Sung-Sik

2007-01-01T23:59:59.000Z

477

3D Printing of Li-Ion Microbattery Architectures K. Sun, T.-S. Wei, B.Y. Ahn, J.Y. Seo, S.J. Dillon, and J.A. Lewis, "3D  

E-Print Network [OSTI]

3D Printing of Li-Ion Microbattery Architectures K. Sun, T.-S. Wei, B.Y. Ahn, J, and actuators. These 3D printed ba

Faraon, Andrei

478

GalPak3D: A Bayesian parametric tool for extracting morpho-kinematics of galaxies from 3D data  

E-Print Network [OSTI]

We present a method to constrain galaxy parameters directly from 3-dimensional data-cubes. The algorithm compares directly the data-cube with a parametric model mapped in $x,y,\\lambda$ coordinates. It uses the spectral Line Spread Function (LSF) and the spatial Point Spread Function (PSF) to generate a 3-dimensional kernel whose characteristics are instrument-specific or user-generated. The algorithm returns the intrinsic modeled properties along with both an `intrinsic' model data-cube and the modeled galaxy convolved with the 3D-kernel. The algorithm uses a Markov Chain Monte Carlo (MCMC) approach with a non-traditional proposal distribution in order to efficiently probe the parameter space. We demonstrate the robustness of the algorithm using 1728 mock galaxies and galaxies generated from hydrodynamical simulations in various seeing conditions from 0.6" to 1.2". We find that the algorithm can recover the morphological parameters (inclination, position angle) to within 10% and the kinematic parameters (maxi...

Bouché, N; Schroetter, I; Michel-Dansac, L; Contini, T

2015-01-01T23:59:59.000Z

479

Chapter 6 - Seismic Inversion Techniques  

Science Journals Connector (OSTI)

Abstract Seismic inversion techniques were developed as a discipline at the same time that seismic technologies were widely applied in oil exploration and development starting in the 1980s. Except for basic theories and principles, seismic inversion techniques are different from traditional seismic exploration methods in geological tasks, involving basic information as well as study approaches. In the early stages of exploration, the geological task of seismic exploration was to find structures and identify traps, and seismic exploration techniques always focused on the ups and downs of reflection interfaces. They mainly relied on the travel time for structural interpretation. The main work of reservoir geophysics is to study the heterogeneity of a reservoir, and the main geological task is to make predictions on the reservoir parameters. Scientists focus on the lateral variation of reservoir characteristics and conduct seismic interpretation based on the information extracted from the results of reservoir seismic inversion. Seismic inversion has developed rapidly in recent years, including recursive inversion, log-constrained inversion, and multiparameter lithological seismic inversion. We choose different methods according to the geological characteristics and specific problems of the study area.

Ming Li; Yimin Zhao

2014-01-01T23:59:59.000Z

480

A systematic approach for 2D-image to 3D-range registration in urban environments  

E-Print Network [OSTI]

applicable to models of any type (i.e. 3D point clouds, 3D meshes, CAD, SketchUp, etc.). Our system first

Stamos, Ioannis

Note: This page contains sample records for the topic "3d gravity inversion" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


481

A pilot study: 3D stereo photogrammetric image superimposition on to 3D CT scan images the future of orthognathic surgery  

E-Print Network [OSTI]

the Radiology Department of the Glasgow Dental School, Figure 1. A mask was then constructed on top Walker c and Donald Hadley d a Glasgow Dental Hospital and School, Glasgow, Scotland,UK b 3D

Nebel, Jean-Christophe

482

Glossary API Gravity: An  

Gasoline and Diesel Fuel Update (EIA)

5 60 60 131 5 . . The higher the API gravity, the lighter the compound. Light crudes generally exceed 38 degrees API and heavy crudes are commonly labeled as all crudes with an API gravity of 22 degrees or below. Intermediate crudes fall in the range of 22 degrees to 38 degrees API gravity. ASTM: American Society for Testing and Materials. Aviation Gasoline (Finished): A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel specifi- cations are provided in ASTM Specification D 910 and Military Specification MIL-G-5572. Note: Data on blending components are not counted in data on fin- ished aviation gasoline. Barrel: A volumetric unit of measure for crude oil and petroleum products equivalent to 42 U.S. gallons. Bulk Sales: Wholesale sales of gasoline in individual

483

Glossary API Gravity: An  

Gasoline and Diesel Fuel Update (EIA)

60 60 1315 . . The higher the API gravity, the lighter the compound. Light crudes generally exceed 38 degrees API and heavy crudes are commonly labeled as all crudes with an API gravity of 22 degrees or below. Intermediate crudes fall in the range of 22 degrees to 38 degrees API gravity. ASTM: American Society for Testing and Materials. Aviation Gasoline (Finished): A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel specifi- cations are provided in ASTM Specification D 910 and Military Specification MIL-G-5572. Note: Data on blending components are not counted in data on fin- ished aviation gasoline. Barrel: A volumetric unit of measure for crude oil and petroleum products equivalent to 42 U.S. gallons. Bulk Sales: Wholesale sales of gasoline in individual

484

ON THE CONTROL OF THE EFFECTS OF GRAVITY ON SOLIDIFICATION MICROSTRUCURES USING  

E-Print Network [OSTI]

with continuous boundary heating/cooling conditions for various strengths of gravity enhances the success/furnace conditions as well as the strength and orientation of an externally applied electromagnetic field. We select problems are inverse problems with overspecified thermal conditions (temper- ature and flux) on one part

Zabaras, Nicholas J.

485

Small divisor problem in the theory of three-dimensional water gravity waves  

E-Print Network [OSTI]

Small divisor problem in the theory of three-dimensional water gravity waves G´erard Iooss , Pavel of Sciences, Lavryentyev pr. 15, Novosibirsk 630090, Russia gerard.iooss@inln.cnrs.fr, plotnikov@hydro of small divisors, the main difficulty is the inversion of the linearized operator at a non trivial point

Iooss, Gérard

486

3D Channel Model Emulation in a MIMO OTA , Pekka Kysti 2  

E-Print Network [OSTI]

1 3D Channel Model Emulation in a MIMO OTA Setup Wei Fan1 , Pekka Kyösti 2 , Fan Sun1 , Jesper � reconstruction technique for 3D geometry-based channels in a multi-probe based MIMO OTA setup. The proposed in realistic environ- ments in the lab, it would be desirable that the 3D radio channels can be accurately

Berning, Torsten

487

Efficient Inversion of Mult-frequency and Multi-Source Electromagnetic Data  

SciTech Connect (OSTI)

The project covered by this report focused on development of efficient but robust non-linear inversion algorithms for electromagnetic induction data, in particular for data collected with multiple receivers, and multiple transmitters, a situation extremely common in eophysical EM subsurface imaging methods. A key observation is that for such multi-transmitter problems each step in commonly used linearized iterative limited memory search schemes such as conjugate gradients (CG) requires solution of forward and adjoint EM problems for each of the N frequencies or sources, essentially generating data sensitivities for an N dimensional data-subspace. These multiple sensitivities allow a good approximation to the full Jacobian of the data mapping to be built up in many fewer search steps than would be required by application of textbook optimization methods, which take no account of the multiplicity of forward problems that must be solved for each search step. We have applied this idea to a develop a hybrid inversion scheme that combines features of the iterative limited memory type methods with a Newton-type approach using a partial calculation of the Jacobian. Initial tests on 2D problems show that the new approach produces results essentially identical to a Newton type Occam minimum structure inversion, while running more rapidly than an iterative (fixed regularization parameter) CG style inversion. Memory requirements, while greater than for something like CG, are modest enough that even in 3D the scheme should allow 3D inverse problems to be solved on a common desktop PC, at least for modest (~ 100 sites, 15-20 frequencies) data sets. A secondary focus of the research has been development of a modular system for EM inversion, using an object oriented approach. This system has proven useful for more rapid prototyping of inversion algorithms, in particular allowing initial development and testing to be conducted with two-dimensional example problems, before approaching more computationally cumbersome three-dimensional problems.

Gary D. Egbert

2007-03-22T23:59:59.000Z

488

Center for Inverse Design: Publications  

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

a bell curve on a graph with many points defined. New selection metric for design of thin-film solar cell absorber materials The Center for Inverse Design has developed...

489

Resummation of Massive Gravity  

SciTech Connect (OSTI)

We construct four-dimensional covariant nonlinear theories of massive gravity which are ghost-free in the decoupling limit to all orders. These theories resume explicitly all the nonlinear terms of an effective field theory of massive gravity. We show that away from the decoupling limit the Hamiltonian constraint is maintained at least up to and including quartic order in nonlinearities, hence excluding the possibility of the Boulware-Deser ghost up to this order. We also show that the same remains true to all orders in a similar toy model.

Rham, Claudia de [Department de Physique Theorique, Universite de Geneve, 24 Quai E. Ansermet, CH-1211 Geneve (Switzerland); Gabadadze, Gregory [Center for Cosmology and Particle Physics, Department of Physics, New York University, New York 10003 (United States); Tolley, Andrew J. [Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106 (United States)

2011-06-10T23:59:59.000Z

490

Low-cost, Efficient, Flexible Solar Cells with 3D Nanopillar...  

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

Photovoltaic Solar Photovoltaic Find More Like This Return to Search Low-cost, Efficient, Flexible Solar Cells with 3D Nanopillar Arrays Lawrence Berkeley National Laboratory...

491

A 3D HUMAN TEETH DATABASE CONSTRUCTION BASED ON A POINT-BASED SHAPE REGISTRATION  

E-Print Network [OSTI]

. Chen2 , A. A. Farag2 , R. Pusateri2 , C. Carter2 , M. Miller2 , A. Farman3 , D. Tasman3 1 Computer

Farag, Aly A.

492

3D analysis of magnetization distribution magnetized by capacitor-discharge impulse magnetizer  

Science Journals Connector (OSTI)

Method for calculating the magnetization distribution magnetized by capacitor-discharge impulse magnetizer is expanded to 3D, and the calculated flux distribution is compared with measured one.

Norio Takahashi

2001-01-01T23:59:59.000Z

493

Observation of Self-Similar Behavior of the 3D, Nonlinear Rayleigh-Taylor Instability  

SciTech Connect (OSTI)

The Rayleigh-Taylor unstable growth of laser-seededm 3D broadband perturbations was experimentally measured in the laser-seeded, planar plastic foils.

Sadot, O.; Smalyuk, V.A.; Delettrez, J. A.; Meyerhofer, D.D.; Sangster, T.C.; Betti, R.; Goncharov, V.N.; Shvarts, D.

2005-12-29T23:59:59.000Z

494

Painting by numbersPrinting paintings in 3D Timo de Rijk  

E-Print Network [OSTI]

Delft #12;2 Nuna7 wins again 16 Less heat loss thanks to Organic Rankine Cycle 3D reproduction of paintings

Lindken, Ralph

495

MT3D: a 3 dimensional magnetotelluric modeling program (user's guide and documentation for Rev. 1)  

SciTech Connect (OSTI)

MT3D.REV1 is a non-interactive computer program written in FORTRAN to do 3-dimensional magnetotelluric modeling. A 3-D volume integral equation has been adapted to simulate the MT response of a 3D body in the earth. An integro-difference scheme has been incorporated to increase the accuracy. This is a user's guide for MT3D.REV1 on the University of Utah Research Institute's (UURI) PRIME 400 computer operating under PRIMOS IV, Rev. 17.

Nutter, C.; Wannamaker, P.E.

1980-11-01T23:59:59.000Z

496

Analysis of microelectronic power distribution networks and exploration of 3D ICs  

E-Print Network [OSTI]

Regulator Based Power Distribution Design Under WorstTanmoy Roy. Power Distribution System Design Methodology andChen, “3D Power Distribution Network Co-design for Nanoscale

Hu, Xiang

2012-01-01T23:59:59.000Z

497

Sorender: an interactive graphical interface from Softimage 3D TM to Renderman TM  

E-Print Network [OSTI]

Visualizer does not [11,12, 14, 31]. 12 PROBLEM STATEMENT The problem this thesis addresses is creating an interface from Softimage 3D to RenderMan. Softimage 3D is easily the most popular animation system in the Texas A & M Visualization Laboratory... Visualizer does not [11,12, 14, 31]. 12 PROBLEM STATEMENT The problem this thesis addresses is creating an interface from Softimage 3D to RenderMan. Softimage 3D is easily the most popular animation system in the Texas A & M Visualization Laboratory...

Walvoord, John David

2012-06-07T23:59:59.000Z

498

Coherence Holography and Spatial Frequency Comb for 3-D Coherence Imaging  

Science Journals Connector (OSTI)

The principle and the applications of a recently proposed unconventional holography technique, called coherence holography, and a related technique for dispersion-free 3-D coherence...

Takeda, Mitsuo; Wang, Wei; Duan, Zhihui; Miyamoto, Yoko; Rosen, Joseph

499

Bob Ellis designs a PPPL first: A 3D printed mirror for microwave...  

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

for shorter experiments, decided to try out a novel manufacturing process called 3D printing that produces components as unified wholes with minimal need for further...

500

Next Generation Lunch: Revealing the World’s First 3D Printed Car (text version)  

Broader source: Energy.gov [DOE]

Below is the text version for the Next Generation Lunch: Revealing the World’s First 3D Printed Car Video.