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While these samples are representative of the content of NLEBeta,
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1

3D Structures of Biomolecules  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICS H.CarbonMarch Value4 3.P D AT E3D

2

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

3

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

4

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

5

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"

6

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

7

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

8

Cost-effective Printing of 3D Objects with Skin-Frame Structures Weiming Wang,  

E-Print Network [OSTI]

; Keywords: 3D printing, fabrication, frame structure, sparsity op- timization Corresponding author: yangzw@ustc.edu.cn (Zhouwang Yang) 1 Introduction Additive manufacturing (3D printing) enables fabrication of physi- cal techniques of 3D printing has received considerable attention for assisting users to generate desired

Deng, Jiansong

9

Colloidal Inks for Directed Assembly of 3-D Periodic Structures  

E-Print Network [OSTI]

during assembly, which simultaneously facilitated bonding and shape retention of the deposited elements the desired 3-D periodicity, places the most stringent demands on ink design. Direct-write techniques- controlled viscoelastic response; that is, they must be able to flow through a deposition nozzle

Lewis, Jennifer

10

Methods Mol Biol . Author manuscript 3D structural models of transmembrane proteins  

E-Print Network [OSTI]

proteins is a major research area. Due to the lack of available 3D structures, automatic homology modelingMethods Mol Biol . Author manuscript Page /1 9 3D structural models of transmembrane proteins: Alexandre De Brevern Abstract Summary Transmembrane proteins

Paris-Sud XI, Université de

11

Accepted in Methods Mol Biol. 2010 3D-structural models of transmembrane proteins.  

E-Print Network [OSTI]

of transmembrane proteins is a major research area. Due to the lack of available 3D structures, automatic homology1 Accepted in Methods Mol Biol. 2010 3D-structural models of transmembrane proteins. Alexandre G proteins are macromolecules implicated in major biological process and diseases. Due to their specific

Paris-Sud XI, Université de

12

Gravity observations and 3D structure of the Earth , F. Chambat  

E-Print Network [OSTI]

1 Gravity observations and 3D structure of the Earth Y. Ricard1 , F. Chambat Laboratoire des, Michigan-Ann Harbor University, USA. Short title: GRAVITY OBSERVATIONS AND 3D STRUCTURE OF THE EARTH 1. The determination of Earth's gravity field has benefited from various gravity missions that have been launched

13

Colorado Basin 3D Structure and Evolution, Argentine passive J. Autin (1)  

E-Print Network [OSTI]

1 Colorado Basin 3D Structure and Evolution, Argentine passive margin J. Autin (1) , M. Scheck, department of Geophysics, Christian-Albrechts-University, Kiel, Germany. Highlights The Colorado Basin. ABSTRACT This 3D structural model of the Colorado Basin provides new insights into the crustal geometry

Boyer, Edmond

14

I-TASSER server for protein 3D structure prediction  

E-Print Network [OSTI]

Background: Prediction of 3-dimensional protein structures from amino acid sequences represents one of the most important problems in computational structural biology. The community-wide Critical Assessment of Structure ...

Zhang, Yang

2008-01-23T23:59:59.000Z

15

MULTI-PHOTON POLYMERIZATION OF WAVEGUIDE STRUCTURES WITHIN 3D PHOTONIC CRYSTALS  

E-Print Network [OSTI]

MULTI-PHOTON POLYMERIZATION OF WAVEGUIDE STRUCTURES WITHIN 3D PHOTONIC CRYSTALS Wonmok Lee in the interior of 3D colloidal crystals via multi-photon polymerization.3 Multi-photon polymerization multi-photon polymerization systems, and selected two of which appear to have great promise for defined

Braun, Paul

16

3D Rigid Structure from Video: What Are "Easy" Shapes and "Good" Motions ? Pedro M. Q. Aguiar  

E-Print Network [OSTI]

3D Rigid Structure from Video: What Are "Easy" Shapes and "Good" Motions ? Pedro M. Q. Aguiar--Factorization algorithms are increasingly popular to recover 3D rigid structure from video. In this paper, we analyze the rank 1 factorization algorithm to determine what are the most suitable 3D shapes or the best 3D motions

Aguiar, Pedro M. Q.

17

Toward autonomous underwater mapping in partially structured 3D environments  

E-Print Network [OSTI]

Motivated by inspection of complex underwater environments, we have developed a system for multi-sensor SLAM utilizing both structured and unstructured environmental features. We present a system for deriving planar ...

VanMiddlesworth, Mark (Mark Allen)

2014-01-01T23:59:59.000Z

18

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

Open Energy Info (EERE)

data show that the volcanic edifice of Izu-Oshima Volcano has a mean magnetization intensity ranging from 10.4 to 12.1 Am. The derived 3D magnetic structure shows low...

19

3-D Wave Propagation Simulation in Complex Indoor Structures Farshid Aryanfar' and Kamal Sarabandi  

E-Print Network [OSTI]

3-D Wave Propagation Simulation in Complex Indoor Structures Farshid Aryanfar' and Kamal Sarabandi in different environments is important for specifying system parameters. Recently, wave propagation prediction electromagnetic wave propagation models have been developed. Examination of reported wave propagation algorithms

Sarabandi, Kamal

20

Effect of 3d doping on the electronic structure of BaFe2As2  

SciTech Connect (OSTI)

The electronic structure of BaFe2As2 doped with Co, Ni and Cu has been studied by a variety of experimental and theoretical methods, but a clear picture of the dopant 3d states has not yet emerged. Herein we provide experimental evidence of the distribution of Co, Ni and Cu 3d states in the valence band. We conclude that the Co and Ni 3d states provide additional free carriers to the Fermi level, while the Cu 3d states are found at the bottom of the valence band in a localized 3d10 shell. These findings help shed light on why superconductivity can occur in BaFe2As2 doped with Co and Ni but not Cu.

McLeod, John A.; Buling, A.; Green, R.J.; Boyko, T.D.; Skorikov, N.A.; Kurmaev, E.Z.; Neumann, M.; Finkelstein, L.D.; Ni, Ni; Thaler, Alexander; Budko, Serguei L.; Canfield, Paul; Moewes, A.

2012-04-25T23:59:59.000Z

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

Subtractive 3D Printing of Optically Active Diamond Structures  

E-Print Network [OSTI]

Diamond has recently attracted considerable attention as a promising platform for quantum technologies, photonics and high resolution sensing applications. Here we demonstrate a chemical approach that enables the fabrication of functional diamond structures using gas-mediated electron induced etching. The method achieves chemical etching at room temperature through the dissociation of surface-adsorbed H2O molecules by electron irradiation in a water vapor environment. High throughput, parallel processing is possible by electron flood exposure and the use of an etch mask, while single step, mask-free three dimensional fabrication and iterative editing are achieved using a variable pressure scanning electron microscope. The electron induced chemical etching paves the way to a transformative technology for nanofabrication of diamond and other wide band-gap semiconductors.

Martin, Aiden A; Aharonovich, Igor

2014-01-01T23:59:59.000Z

22

3D structure of Alzheimer's amyloid-{beta}(1-42) fibrils Dbeli, David Schubert, and Roland Riek  

E-Print Network [OSTI]

3D structure of Alzheimer's amyloid-{beta}(1-42) fibrils Döbeli, David Schubert, and Roland Riek.pnas.org/misc/reprints.shtml To order reprints, see: Notes: #12;3D structure of Alzheimer's amyloid- (1­42) fibrils Thorsten Lu¨ hrs fibrils (2, 3). Only one 3D structure of an engineered amyloid fibril has yet been determined (4), owing

Riek, Roland

23

3D Printing Meets Computational Astrophysics: Deciphering the Structure of Eta Carinae's Inner Colliding Winds  

E-Print Network [OSTI]

We present the first 3D prints of output from a supercomputer simulation of a complex astrophysical system, the colliding stellar winds in the massive (>120 M_Sun), highly eccentric (e ~ 0.9) binary star system Eta Carinae. We demonstrate the methodology used to incorporate 3D interactive figures into a PDF journal publication and the benefits of using 3D visualization and 3D printing as tools to analyze data from multidimensional numerical simulations. Using a consumer-grade 3D printer (MakerBot Replicator 2X), we successfully printed 3D smoothed particle hydrodynamics (SPH) simulations of Eta Carinae's inner (r ~ 110 au) wind-wind collision interface at multiple orbital phases. The 3D prints and visualizations reveal important, previously unknown 'finger-like' structures at orbital phases shortly after periastron (phi ~ 1.045) that protrude radially outward from the spiral wind-wind collision region. We speculate that these fingers are related to instabilities (e.g. thin-shell, Rayleigh-Taylor) that arise a...

Madura, Thomas I; Gull, Theodore R; Kruip, Chael J H; Paardekooper, Jan-Pieter

2015-01-01T23:59:59.000Z

24

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

25

3D modelling of forest canopy structure for remote sensing simulations in the optical and microwave domains  

E-Print Network [OSTI]

3D modelling of forest canopy structure for remote sensing simulations in the optical and microwave July 2005; received in revised form 4 October 2005; accepted 8 October 2005 Abstract A detailed 3D using detailed 3D models of tree structure including the location and orientation of individual needles

Jones, Peter JS

26

Local-global alignment for finding 3D similarities in protein structures  

DOE Patents [OSTI]

A method of finding 3D similarities in protein structures of a first molecule and a second molecule. The method comprises providing preselected information regarding the first molecule and the second molecule. Comparing the first molecule and the second molecule using Longest Continuous Segments (LCS) analysis. Comparing the first molecule and the second molecule using Global Distance Test (GDT) analysis. Comparing the first molecule and the second molecule using Local Global Alignment Scoring function (LGA_S) analysis. Verifying constructed alignment and repeating the steps to find the regions of 3D similarities in protein structures.

Zemla, Adam T. (Brentwood, CA)

2011-09-20T23:59:59.000Z

27

Boolean Operations on 3D Selective Nef Complexes: Data Structure, Algorithms, Optimized  

E-Print Network [OSTI]

polyhedra and complexes are quite general. They can model non­manifold solids, unbounded solids, openBoolean Operations on 3D Selective Nef Complexes: Data Structure, Algorithms, Optimized, open and closed sets, mixed­dimensional complexes, and they are closed under all boolean

Mehlhorn, Kurt

28

A Patterned 3D Silicon Anode Fabricated by Electrodeposition on a Virus-Structured Current Collector  

SciTech Connect (OSTI)

Electrochemical methods were developed for the deposition of nanosilicon onto a 3D virus-structured nickel current collector. This nickel current collector is composed of self-assembled nanowire-like rods of genetically modified tobacco mosaic virus (TMV1cys), chemically coated in nickel to create a complex high surface area conductive substrate. The electrochemically depo­sited 3D silicon anodes demonstrate outstanding rate performance, cycling stability, and rate capability. Electrodeposition thus provides a unique means of fabricating silicon anode materials on complex substrates at low cost.

Chen, X L; Gerasopoulos, K; Guo, J C; Brown, A; Wang, Chunsheng; Ghodssi, Reza; Culver, J N

2011-01-01T23:59:59.000Z

29

Modeling of AAR affected structures using the GROW3D FEA program  

SciTech Connect (OSTI)

The objective of this paper is to present a rational and practical methodology for finite element stress analysis of AAR affected structures. The methodology is presented using case history studies which illustrate the practical application of the GROW3D program. GROW3D uses an anisotropic expansion strain function and concrete properties which simulates the following key characteristics of AAR affected concrete (1) concrete growth expansion rates dependent on the stress vectors at each point; (2) concrete growth rate variation due to changes in moisture content and temperature; and (3) time-dependent, enhanced creep behavior. GROW3D has been applied to several hydropower structures and case histories from the Mactaquac Generating Station are presented herein. Mactaquac is selected because extensive instrumentation data before and after remedial measures have been used to calibrate and test the model. The results of analyses of three different structures are given, i.e., the intake, diversion sluiceway and powerhouse. The analysis results are used to identify potential structural problems and the need and timing of remedial measures. The output from GROW3D includes displacement rates, total displacements, global stresses and local factors of safety. The local factors of safety (or strength to stress ratios) are computed for several modes of failure including crushing, cracking, shear and sliding on horizontal construction joints. The analysis results are compared with field measurements which are taken before and after slot cutting. The effects of including the above-mentioned characteristics and other modeling assumptions on the computed results is discussed herein. Finally, a brief discussion on the recent enhancements to the model is given. These enhancements include the implementation of a more rigorous treatment of concrete creep effects.

Curtis, D.D. [Acres International Limited, Niagara Falls, Ontario (Canada)

1995-12-31T23:59:59.000Z

30

Micro-CT for the quantification of 3D voids within damaged structures  

SciTech Connect (OSTI)

Micro X-ray Computed Tomography (MXCT) is widely used in the materials community to examine the internal structure of materials for voids and cracks due to damage or casting, or other defects. Most research in this area focuses on the qualitative aspect of the image, simply answering; Are there voids present? Here we present an ongoing study of the quantified incipient spall voids in Cu with different grain sizes, using a gas gun with various velocities. Data analysis packages for MXCT are just now becoming able to dimensionally measure and produce statistics on the voids-present. In order to make the size of the features in the 3D image quantifiable, the question, how many radiographs are required to render the object dimensionally accurate in 3D, must be answered. A series of data sets has been coUected, varying the number of radiographs collected in order to determine the appropriate number required.

Patterson, Brian M [Los Alamos National Laboratory; Hamilton, Christopher E [Los Alamos National Laboratory; Cerreta, Ellen K [Los Alamos National Laboratory; Dennis - Koller, Darcie [Los Alamos National Laboratory; Bronkhorst, C. A. [Los Alamos National Laboratory; Hansen, B. L. [Los Alamos National Laboratory

2011-01-26T23:59:59.000Z

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

Ab initio study of structural stability of small 3d late transition metal clusters: Interplay of magnetization and hybridization  

E-Print Network [OSTI]

Using first-principles density-functional-theory–based calculations, we analyze the structural stability of small clusters of 3d late transition metals. We consider the relative stability of the two structures: layer-like ...

Datta, Soumendu

33

Monte Carlo Generators for Studies of the 3D Structure of the Nucleon  

SciTech Connect (OSTI)

Extraction of transverse momentum and space distributions of partons from measurements of spin and azimuthal asymmetries requires development of a self consistent analysis framework, accounting for evolution effects, and allowing control of systematic uncertainties due to variations of input parameters and models. Development of realistic Monte-Carlo generators, accounting for TMD evolution effects, spin-orbit and quark-gluon correlations will be crucial for future studies of quark-gluon dynamics in general and 3D structure of the nucleon in particular.

Avagyan, Harut A. [JLAB

2015-01-01T23:59:59.000Z

34

Millimeter radiation from a 3D model of the solar atmosphere I. Diagnosing chromospheric thermal structure  

E-Print Network [OSTI]

Aims. We use advanced 3D NLTE radiative magnetohydrodynamic simulations of the solar atmosphere to carry out detailed tests of chromospheric diagnostics at millimeter and submillimeter wavelengths. Methods. We focused on the diagnostics of the thermal structure of the chromosphere in the wavelength bands from 0.4 mm up to 9.6 mm that can be accessed with the Atacama Large Millimeter/Submillimeter Array (ALMA) and investigated how these diagnostics are affected by the instrumental resolution. Results. We find that the formation height range of the millimeter radiation depends on the location in the simulation domain and is related to the underlying magnetic structure. Nonetheless, the brightness temperature is a reasonable measure of the gas temperature at the effective formation height at a given location on the solar surface. There is considerable scatter in this relationship, but this is significantly reduced when very weak magnetic fields are avoided. Our results indicate that although instrumental smearin...

Loukitcheva, Maria; Carlsson, Mats; White, Stephen

2015-01-01T23:59:59.000Z

35

Dirac cones in artificial structures of 3d transitional-metals doped Mg-Al spinels  

SciTech Connect (OSTI)

Motivated by recent theoretical predications for Dirac cone in two-dimensional (2D) triangular lattice [H. Ishizuka, Phys. Rev. Lett. 109, 237207 (2012)], first-principles studies are performed to predict Dirac cones in artificial structures of 3d transitional-metals (TM?=?Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) doped Mg-Al spinels. In investigated artificial structures, TM dopants substitute specific positions of the B sub-lattice in Mg-Al spinel, and form a quasi-2D triangular lattice in the a-b plane. Calculated results illustrate the existence of the spin-polarized Dirac cones formed in d-wave bands at (around) the K-point in the momentum space. The study provides a promising route for engineering Dirac physics in condensed matters.

Lu, Yuan; Zuo, Xu, E-mail: xzuo@nankai.edu.cn [College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300071 (China); Feng, Min [School of Physics, Nankai University, Tianjin 300071 (China); Shao, Bin [Department of Physics, Tsinghua University, Beijing 100084 (China)

2014-05-07T23:59:59.000Z

36

A Mean Field Analysis of the Exchange Coupling (J) For 2- and 3-D Structured Tetracyanoethylenide (TCNE -)-based Magnets  

SciTech Connect (OSTI)

Mean field expressions based on the simple Heisenberg model were derived to correlate the inter- and intralayer exchange coupling to the critical temperatures, Tc, for several TCNE (tetracyanoethylene) based magnets with extended 2- and 3-D structure types. These expressions were used to estimate the exchange coupling, J, for 2-D ferrimagnetic [MII(TCNE)(NCMe)2]+ (M = Mn, Fe), 3-D antiferromagnetic MnII(TCNE)[C4(CN)8]1/2, and 3-D ferrimagnetic MnII(TCNE)3/2(I3)1/2. The sign and magnitude of the exchange coupling are in accord with previously reported magnetic data.

McConnell, Amber C. [University of Utah; Fishman, Randy Scott [ORNL; Miller, Joel S. [University of Utah

2012-01-01T23:59:59.000Z

37

The Journal of the Textile Institute Physical and compressional characteristics of a novel 3D fibrous structure -Application  

E-Print Network [OSTI]

fibrous structure, PU foam, recycling, compression behavior Corresponding Author: Mouna Messaoud LPMT: Abstract: The question of the recycling of the polyurethane (PU) foam, especially in the automotive, a new 3D fibrous structure made of polyester (PET) material has been developed in order to replace PU

Paris-Sud XI, Université de

38

Quantitative electron holographic tomography for the 3D characterisation of semiconductor device structures  

E-Print Network [OSTI]

Quantitative electron holographic tomography for the 3D characterisation of semiconductor device tomography Silicon devices Device characterisation a b s t r a c t Electron tomography and electron rights reserved. 1. Introduction Dopant profiling of semiconductor devices using off-axis electron

Dunin-Borkowski, Rafal E.

39

Sand transverse dune aerodynamics: 3D Coherent Flow Structures from a computational study  

E-Print Network [OSTI]

The engineering interest about dune fields is dictated by the their interaction with a number of human infrastructures in arid environments. The aerodynamic behaviour of sand dunes in atmospheric boundary layer belongs to the class of bluff bodies. Because of their simple geometry and their frequent occurrence in desert area, transverse sand dunes are usually adopted in literature as a benchmark to investigate dune aerodynamics by means of both computational or experimental approach, usually in nominally 2D setups. The writers suspect the flow in the wake is characterised by 3D features and affected by wind tunnel setup - e.g. blockage effect, duct side wall boundary layer, incoming velocity profile - when experimental studies are carried out. The present study aims at evaluating the 3D flow features of an idealised transverse dune under different setup conditions by means of computational simulations and to compare the obtained results with experimental measurements.

Bruno, Luca

2015-01-01T23:59:59.000Z

40

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

42

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

43

3-D Nano-Structured Carbon/Tin Composite Anodes | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3 Beryllium-Associated Worker2014Department of Energy 3 Innovations That3-D

44

The Need For High Resolution In Studies Of The 3-D Magnetic Field Structure Of AGN Jets  

E-Print Network [OSTI]

We are using "broadband" (4.6 to 43 GHz) multi-frequency VLBA polarization observations of compact AGN to investigate the 3-D structure of their jet magnetic (B) fields. Observing at several frequencies, separated by short and long intervals, enables reliable determination of the distribution of Faraday Rotation, and thereby the intrinsic B field structure. Transverse Rotation Measure (RM) gradients were detected in the jets of 0954+658 and 1418+546, providing evidence for the presence of a helical B field surrounding the jet. The RM in the core regions of 2200+420 (BL Lac), 0954+658 and 1418+546 display different signs in different frequency-intervals (on different spatial scales); we suggest an explanation for this in terms of modest bends in a helical B field surrounding their jets. In future, polarization observations with a combination of VSOP-2 at 8, 22 and 43 GHz and ground arrays at frequencies with corresponding resolution will help map out the distributions of Faraday rotation, spectral index and the 3-D B field structure both across the jet and closer to the central engine, providing strong constraints for any jet B field models.

Shane P. O'Sullivan; Denise C. Gabuzda

2008-01-31T23:59:59.000Z

45

Facilitation of protein 3-D structure determination using enhanced peptide amide deuterium exchange mass spectrometry (DXMS)  

E-Print Network [OSTI]

hydrophobic interaction in protein folding. Proc Natl Acad1999;28:1-27. 15. Protein Folding, Dynamics, and StructuralHydrogen exchange and protein folding. Curr. Opin. Struct.

Pantazatos, Dennis Peter

2006-01-01T23:59:59.000Z

46

Structural control Architecture Optimization for 3-D Systems Using Advanced Multi-Objective Genetic Algorithms  

E-Print Network [OSTI]

The architectures of the control devices in active control algorithm are an important fact in civil structural buildings. Traditional research has limitations in finding the optimal architecture of control devices such as using predefined numbers...

Cha, Young Jin

2010-01-14T23:59:59.000Z

47

Glycan fragment database: a database of PDB-based glycan 3D structures  

E-Print Network [OSTI]

The glycan fragment database (GFDB), freely available at http://www.glycanstructure.org, is a database of the glycosidic torsion angles derived from the glycan structures in the Protein Data Bank (PDB). Analogous to protein ...

Jo, Sunhwan; Im, Wonpil

2012-10-25T23:59:59.000Z

48

3-D photo-patterning of refractive index structures in photosensitive thin film materials  

DOE Patents [OSTI]

A method of making a three-dimensional refractive index structure in a photosensitive material using photo-patterning. The wavelengths at which a photosensitive material exhibits a change in refractive index upon exposure to optical radiation is first determined and then a portion of the surface of the photosensitive material is optically irradiated at a wavelength at which the photosensitive material exhibits a change in refractive index using a designed illumination system to produce a three-dimensional refractive index structure. The illumination system can be a micro-lenslet array, a macroscopic refractive lens array, or a binary optic phase mask. The method is a single-step, direct-write procedure to produce a designed refractive index structure.

Potter, Jr., Barrett George (Albuquerque, NM); Potter, Kelly Simmons (Albuquerque, NM)

2002-01-01T23:59:59.000Z

49

Computational methods for constructing protein structure models from 3D electron microscopy maps  

E-Print Network [OSTI]

into a low-res- olution EM map. A list of available computational tools is also provided. Ã? 2013 Elsevier Inc, Purdue University, West Lafayette, IN 47907, USA b Department of Biological Sciences, College of Science, Purdue University, West Lafayette, IN 47907, USA c Markey Center for Structural Biology, College

Kihara, Daisuke

50

Linearly Scaling 3D Fragment Method for Large-Scale Electronic Structure Calculations  

SciTech Connect (OSTI)

We present a new linearly scaling three-dimensional fragment (LS3DF) method for large scale ab initio electronic structure calculations. LS3DF is based on a divide-and-conquer approach, which incorporates a novel patching scheme that effectively cancels out the artificial boundary effects due to the subdivision of the system. As a consequence, the LS3DF program yields essentially the same results as direct density functional theory (DFT) calculations. The fragments of the LS3DF algorithm can be calculated separately with different groups of processors. This leads to almost perfect parallelization on tens of thousands of processors. After code optimization, we were able to achieve 35.1 Tflop/s, which is 39percent of the theoretical speed on 17,280 Cray XT4 processor cores. Our 13,824-atom ZnTeO alloy calculation runs 400 times faster than a direct DFTcalculation, even presuming that the direct DFT calculation can scale well up to 17,280 processor cores. These results demonstrate the applicability of the LS3DF method to material simulations, the advantage of using linearly scaling algorithms over conventional O(N3) methods, and the potential for petascale computation using the LS3DF method.

Wang, Lin-Wang; Lee, Byounghak; Shan, Hongzhang; Zhao, Zhengji; Meza, Juan; Strohmaier, Erich; Bailey, David H.

2008-07-01T23:59:59.000Z

51

Representing a 3-D Environment with a 2-D Map Structure Edward H.L. Fong William Adams Frederick Crabbe Alan C. Schultz  

E-Print Network [OSTI]

planning, and localization. II. THE EVIDENCE GRID A wide variety of map representation structures (such Grid The 2-D evidence grid is one of the most popular map structures for autonomous mobile robotsRepresenting a 3-D Environment with a 2½-D Map Structure Edward H.L. Fong William Adams Frederick

Crabbe, Frederick

52

3D Field-Scale Reactive Transport Modeling of In Situ Immobilization of Uranium in Structured Porous Media via Biostimulation  

SciTech Connect (OSTI)

A several-month-long ethanol injection experiment is being conducted to study the impacts of porous media structure (i.e., heterogeneity existing at multiple scales) on the effectiveness of metal/radionuclide bioremediation in a highly heterogeneous unconfined aquifer near Oak Ridge, TN, USA. We have constructed a 3D field-scale groundwater flow and multicomponent reactive transport model to simulate the experimental observations. The model incorporates a suite of abiotic reactions and microbially-mediated redox reactions for multiple terminal electron accepting processes (TEAPs) including soluble oxygen, nitrate, U(VI) and sulfate and solid-phase electron acceptors. Different biomass populations are considered in the model. Growth of these populations is derived from the bioenergetics-based approach in which the partitioning of electron flow between energy generation and cell biomass production is dependent on the free energy of the corresponding TEAP. TEAP reaction rates were free energy constrained. The TEAP model and reaction system have been formulated and used to simulate laboratory batch experimental observations. We conducted the field-scale simulation starting with the reaction system and parameters obtained from the batch experiment and hydrologic parameters estimated from the results of pumping tests, water level monitoring and model interpretation of a tracer test conducted in August 2004. Reaction parameters were investigated to compare simulation results and field experiment observations.

Fang, Yilin; Scheibe, Timothy D.; Roden, Eirc E.; Kamolpornwijit, Wiwat; Brooks, Scott C.

2006-09-12T23:59:59.000Z

53

3D nano-structures for laser nano-manipulation Gediminas Seniutinas1,2, Lorenzo Rosa*1,2, Gediminas Gervinskas1,2,  

E-Print Network [OSTI]

534 3D nano-structures for laser nano-manipulation Gediminas Seniutinas1,2, Lorenzo Rosa*1-Institut. License and terms: see end of document. Abstract The resputtering of gold films from nano-holes defined of the nano-holes. The extraordinary transmission through the patterns of such nano-wells was investigated

Boyer, Edmond

54

TITANIA SILICATE / FUSED QUARTZ GLASSBLOWING FOR 3-D FABRICATION OF LOW INTERNAL LOSS WINEGLASS MICRO-STRUCTURES  

E-Print Network [OSTI]

TITANIA SILICATE / FUSED QUARTZ GLASSBLOWING FOR 3-D FABRICATION OF LOW INTERNAL LOSS WINEGLASS and ultra low expansion titania silicate glass (ULE TSG). The approach consists of a high temperature (at with low CTE, such as fused quartz (0.5 ppm/°C) or ultra low expansion titania silicate glass (0.03 ppm

Tang, William C

55

New results on the resistivity structure of Merapi Volcano(Indonesia), derived from 3D restricted inversion of long-offsettransient electromagnetic data  

SciTech Connect (OSTI)

Three long-offset transient electromagnetic (LOTEM) surveyswerecarried out at the active volcano Merapi in Central Java (Indonesia)during the years 1998, 2000, and 2001. The measurements focused on thegeneral resistivity structure of the volcanic edifice at depths of 0.5-2km and the further investigation of a southside anomaly. The measurementswere insufficient for a full 3D inversion scheme, which could enable theimaging of finely discretized resistivity distributions. Therefore, astable, damped least-squares joint-inversion approach is used to optimize3D models with a limited number of parameters. The mode ls feature therealistic simulation of topography, a layered background structure, andadditional coarse 3D blocks representing conductivity anomalies.Twenty-eight LOTEM transients, comprising both horizontal and verticalcomponents of the magnetic induction time derivative, were analyzed. Inview of the few unknowns, we were able to achieve reasonable data fits.The inversion results indicate an upwelling conductor below the summit,suggesting hydrothermal activity in the central volcanic complex. Ashallow conductor due to a magma-filled chamber, at depths down to 1 kmbelow the summit, suggested by earlier seismic studies, is not indicatedby the inversion results. In conjunction with an anomalous-density model,derived from arecent gravity study, our inversion results provideinformation about the southern geological structure resulting from amajor sector collapse during the Middle Merapi period. The density modelallows to assess a porosity range andthus an estimated vertical salinityprofile to explain the high conductivities on a larger scale, extendingbeyond the foothills of Merapi.

Commer, Michael; Helwig, Stefan, L.; Hordt, Andreas; Scholl,Carsten; Tezkan, Bulent

2006-06-14T23:59:59.000Z

56

3D Printing Electronics  

E-Print Network [OSTI]

Login Register Home Videos Jobs Games 3D Printing Electronics Design Software Designer Edge for 3D Printing · -- B6 Sigma Labs (ticker SGLB) is not the same company as Sigma Technologies

Stryk, Oskar von

57

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

58

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 

59

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

60

The effect of spatial micro-CT image resolution and surface complexity on the morphological 3D analysis of open porous structures  

SciTech Connect (OSTI)

In material science microfocus X-ray computed tomography (micro-CT) is one of the most popular non-destructive techniques to visualise and quantify the internal structure of materials in 3D. Despite constant system improvements, state-of-the-art micro-CT images can still hold several artefacts typical for X-ray CT imaging that hinder further image-based processing, structural and quantitative analysis. For example spatial resolution is crucial for an appropriate characterisation as the voxel size essentially influences the partial volume effect. However, defining the adequate image resolution is not a trivial aspect and understanding the correlation between scan parameters like voxel size and the structural properties is crucial for comprehensive material characterisation using micro-CT. Therefore, the objective of this study was to evaluate the influence of the spatial image resolution on the micro-CT based morphological analysis of three-dimensional (3D) open porous structures with a high surface complexity. In particular the correlation between the local surface properties and the accuracy of the micro-CT-based macro-morphology of 3D open porous Ti6Al4V structures produced by selective laser melting (SLM) was targeted and revealed for rough surfaces a strong dependence of the resulting structure characteristics on the scan resolution. Reducing the surface complexity by chemical etching decreased the sensitivity of the overall morphological analysis to the spatial image resolution and increased the detection limit. This study showed that scan settings and image processing parameters need to be customized to the material properties, morphological parameters under investigation and the desired final characteristics (in relation to the intended functional use). Customization of the scan resolution can increase the reliability of the micro-CT based analysis and at the same time reduce its operating costs. - Highlights: • We examine influence of the image resolution on ?CT-based morphological analysis. • Surface properties influence accuracy of ?CT-based morphology of porous structures. • Total porosity was the least sensitive to surface complexity and scan voxel size. • The beam thickness analysis was overestimated by the surface roughness. • Voxel size customization can significantly reduce a cost of the ?CT-based analysis.

Pyka, Grzegorz, E-mail: gregory.pyka@mtm.kuleuven.be [Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44 – PB2450, B-3001 Leuven (Belgium); Kerckhofs, Greet [Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44 – PB2450, B-3001 Leuven (Belgium); Biomechanics Research Unit, Université de Liege, Chemin des Chevreuils 1 - BAT 52/3, B-4000 Liège (Belgium); Schrooten, Jan; Wevers, Martine [Department of Metallurgy and Materials Engineering, KU Leuven, Kasteelpark Arenberg 44 – PB2450, B-3001 Leuven (Belgium)

2014-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

Adding 3D-structural context to protein-protein interaction data from high-throughput experiments   

E-Print Network [OSTI]

derived from functional genomics experiments, by building upon existing structural information about direct physical PPIs. Secondary aims were (i) to demonstrate the utility of the new resource, and (ii) its application in biological research. We created a...

Jüttemann, Thomas

2011-11-24T23:59:59.000Z

62

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...

63

Analysis of the rotational structure in the high-resolution infrared spectra of trans-hexatriene-2-d1 and -3-d1  

SciTech Connect (OSTI)

The 2-d1 and 3-d1 isotopologues of trans-hexatriene have been synthesized, and their high-resolution (0.0015 cm-1) IR spectra have been recorded. For each of the isotopologues the rotational structure in four C-type bands for out-of-plane vibrational modes has been analyzed, and the ground state combination differences (GSCDs) have been pooled. Ground state rotational constants have been fitted to the GSCDs. For the 2-d species, A0, B0, and C0 values of 0.7837254(5), 0.0442806(3), and 0.0419299(2) cm-1 were fitted to 2450 GSCDs. For the 3-d species, A0, B0, and C0 values of 0.7952226(8), 0.0446149(7), and 0.0422661(4) cm-1 were fitted to 2234 GSCDs. For the eleven out-of-plane modes of the two isotopologues, predictions of anharmonic wavenumbers and harmonic intensities have been computed and compared with experiment where possible.

Craig, Norman C.; Chen, Yihui; van Besien, Herman; Blake, Thomas A.

2014-09-01T23:59:59.000Z

64

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

65

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

66

A novel 3D structure composed of strings of hierarchical TiO{sub 2} spheres formed on TiO{sub 2} nanobelts with high photocatalytic properties  

SciTech Connect (OSTI)

A novel hierarchical titanium dioxide (TiO{sub 2}) composite nanostructure with strings of anatase TiO{sub 2} hierarchical micro-spheres and rutile nanobelts framework (TiO{sub 2} HSN) is successfully synthesized via a one-step hydrothermal method. Particularly, the strings of hierarchical spheres are assembled by very thin TiO{sub 2} nanosheets, which are composed of highly crystallized anatase nanocrystals. Meanwhile, the HSN has a large surface area of 191 m{sup 2}/g, which is about 3 times larger than Degussa P25. More importantly, the photocatalytic activity of HSN and P25 were evaluated by the photocatalytic oxidation decomposition of methyl orange (MO) under UV light illumination, and the TiO{sub 2} HSN shows enhanced photocatalytic activity compared with Degussa P25, as result of its continuous hierarchical structures, special conductive channel and large specific surface area. With these features, the hierarchical TiO{sub 2} may have more potential applications in the fields of dye-sensitized solar cells and lithium ion batteries. -- Graphical abstract: Novel TiO{sub 2} with anatase micro-spheres and rutile nanobelts is synthesized. Enhanced photocatalysis is attributed to hierarchical structures (3D spheres), conductive channel (1D nanobelts) and large specific surface area (2D nanosheet). Highlights: • The novel TiO{sub 2} nanostructure (HSN) is fabricated for the first time. • HSN is composed of strings of anatase hierarchical spheres and rutile nanobelt. • HSN presents a larger S{sub BET} of 191 m{sup 2}/g, 3 times larger than the Degussa P25 (59 m{sup 2}/g). • HSN owns three kinds of dimensional TiO{sub 2} (1D, 2D and 3D) simultaneously. • HSN exhibits better photocatalytic performance compared with Degussa P25.

Jiang, Yongjian [State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing 102206 (China); Li, Meicheng, E-mail: mcli@ncepu.edu.cn [State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing 102206 (China); Suzhou Institute, North China Electric Power University, Suzhou 215123 (China); Song, Dandan; Li, Xiaodan; Yu, Yue [State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing 102206 (China)

2014-03-15T23:59:59.000Z

67

Exploration of 3D Printing.  

E-Print Network [OSTI]

??3D printing technology is introduced and defined in this Thesis. Some methods of 3D printing are illustrated and their principles are explained with pictures. Most… (more)

Lin, Zeyu

2014-01-01T23:59:59.000Z

68

3-D Model for Deactivation & Decommissioning  

Broader source: Energy.gov [DOE]

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...

69

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

70

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

71

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

72

The long-period Galactic Cepheid RS Puppis - II. 3D structure and mass of the nebula from VLT/FORS polarimetry  

E-Print Network [OSTI]

The long-period Cepheid RS Pup is surrounded by a large dusty nebula reflecting the light from the central star. Due to the changing luminosity of the central source, light echoes propagate into the nebula. This remarkable phenomenon was the subject of Paper I.The origin and physical properties of the nebula are however uncertain: it may have been created through mass loss from the star itself, or it could be the remnant of a pre-existing interstellar cloud. Our goal is to determine the 3D structure of the nebula, and estimate its mass. Knowing the geometrical shape of the nebula will also allow us to retrieve the distance of RS Pup in an unambiguous manner using a model of its light echoes (in a forthcoming work). The scattering angle of the Cepheid light in the circumstellar nebula can be recovered from its degree of linear polarization. We thus observed the nebula surrounding RS Pup using the polarimetric imaging mode of the VLT/FORS instrument, and obtained a map of the degree and position angle of linear...

Kervella, P; Szabados, L; Sparks, W B; Havlen, R J; Bond, H E; Pompei, E; Fouqué, P; Bersier, D; Cracraft, M

2012-01-01T23:59:59.000Z

73

Improvement of 3D Printing Resolution by the Development of Shrinkable Materials  

E-Print Network [OSTI]

derived microstructures by 3D printing: bio-and structuralScaffold development using 3D printing with a starch-basedderived microstructures by 3D printing: bio-and structural

Chia, Helena

2014-01-01T23:59:59.000Z

74

Graphene's 3D Counterpart  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGet AssistanceCatalyticNationalMansfieldGraphene's 3D

75

Graphene's 3D Counterpart  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGetGraphene's 3D Counterpart Print ALS researchers have

76

Graphene's 3D Counterpart  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGetGraphene's 3D Counterpart Print ALS researchers

77

Graphene's 3D Counterpart  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGetGraphene's 3D Counterpart Print ALS

78

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.

79

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

80

Idea Generation 3D printing  

E-Print Network [OSTI]

2012 Idea Generation 3D printing at nanoscale Cruising on electrical roads Pushing back against Centre micro and nanoscale 15 Taking 3D printing to the nanoscale 18 Fighting cancer with a "lab

Papadopouli, Maria

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

82

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

83

EMSL Research and Capability Development Proposals The Affinity and Structure of Biomolecules Immobilized on a 3-D Substrate: Time-resolved EPR  

E-Print Network [OSTI]

Immobilized on a 3-D Substrate: Time-resolved EPR Detection During Mobile Phase Gradients Project start date paramagnetic resonance (EPR) as the detection spectroscopy. Mechanically, this concept can be realized by replacing the normal EPR aqueous sample cell with a fritted column of the same dimensions. The sample column

84

* Corresponding author. : Primary student contributor. Folding-aware and Structure-conscious 3D Substructures in Folding Data: Identification and Applications  

E-Print Network [OSTI]

employed by biologists to study the protein folding problem. Such simulations have resulted in a large number of protein folding trajectories, each of which consists of a sequence of three, and cross-trajectory comparison. Key Words: protein folding trajectories, 3D substructure identification

Yang, Hui

85

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

86

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

87

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

88

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

89

T-HEMP3D user manual  

SciTech Connect (OSTI)

The T-HEMP3D (Transportable HEMP3D) computer program is a derivative of the STEALTH three-dimensional thermodynamics code developed by Science Applications, Inc., under the direction of Ron Hofmann. STEALTH, in turn, is based entirely on the original HEMP3D code written at Lawrence Livermore National Laboratory. The primary advantage STEALTH has over its predecessors is that it was designed using modern structured design techniques, with rigorous programming standards enforced. This yields two benefits. First, the code is easily changeable; this is a necessity for a physics code used for research. The second benefit is that the code is easily transportable between different types of computers. The STEALTH program was transferred to LLNL under a cooperative development agreement. Changes were made primarily in three areas: material specification, coordinate generation, and the addition of sliding surface boundary conditions. The code was renamed T-HEMP3D to avoid confusion with other versions of STEALTH. This document summarizes the input to T-HEMP3D, as used at LLNL. It does not describe the physics simulated by the program, nor the numerical techniques employed. Furthermore, it does not describe the separate job steps of coordinate generation and post-processing, including graphical display of results. (WHK)

Turner, D.

1983-08-01T23:59:59.000Z

90

New Methane Hydrate Research: Investing in Our Energy Future...  

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

Investing in Our Energy Future August 31, 2012 - 1:37pm Addthis Methane hydrates are 3D ice-lattice structures with natural gas locked inside. If methane hydrate is either warmed...

91

Imaging atoms in 3-D  

SciTech Connect (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

2013-10-31T23:59:59.000Z

92

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

93

Accepting the T3D  

SciTech Connect (OSTI)

In April, a 128 PE Cray T3D was installed at Los Alamos National Laboratory`s Advanced Computing Laboratory as part of the DOE`s High-Performance Parallel Processor Program (H4P). In conjunction with CRI, the authors implemented a 30 day acceptance test. The test was constructed in part to help them understand the strengths and weaknesses of the T3D. In this paper, they briefly describe the H4P and its goals. They discuss the design and implementation of the T3D acceptance test and detail issues that arose during the test. They conclude with a set of system requirements that must be addressed as the T3D system evolves.

Rich, D.O.; Pope, S.C.; DeLapp, J.G.

1994-10-01T23:59:59.000Z

94

MnII (TCNE)3/2(I3)1/2 - A 3-D Network-structured Organic-based Magnet and Comparison to a 2-D Analog  

SciTech Connect (OSTI)

Mn{sup II}(TCNE){sub 3/2}(I{sub 3}){sub 1/2} and Mn{sup II}(TCNE)[C{sub 4}(CN){sub 8}]{sub 1/2} [tetracyanoethylene (TCNE)] are organic-based magnets with 3D and 2D extended network structures with vastly different magnetic behavior. They have similar ferrimagnetic coupled layers of Mn{sup II}(TCNE){sup {lg_bullet}-} with different interlayer couplings, which lead, respectively, to net ferrimagnetic (T{sub c} = 171 K) and antiferromagnetic (T{sub c} = 68 K) order.

Stone, K.; Stephens, P; McConnell, A; Shurdha, E; Pokhodnya, K; Miller, J

2010-01-01T23:59:59.000Z

95

Fuzzy Control for Enforcing Energy Efficiency in High-Performance 3D Systems  

E-Print Network [OSTI]

to remove the heat from 3D ICs. 3D systems are also prone to large thermal variations; e.g., cores located and DVFS-based thermal management in 3D multicore systems [28], [8], [27]. However, as power densities micro- channels (or pin-fin structures) between the tiers of a 3D stack using a pump to remove the heat

Coskun, Ayse

96

TOPAZ3D. 3-D Finite Element Heat Transfer  

SciTech Connect (OSTI)

TOPAZ3D is a three-dimensional implicit finite element computer code for heat transfer analysis. TOPAZ3D can be used to solve for the steady-state or transient temperature field on three-dimensional geometries. Material properties may be temperature-dependent and either isotropic or orthotropic. A variety of time-dependent and temperature-dependent boundary conditions can be specified including temperature, flux, convection, and radiation. By implementing the user subroutine feature, users can model chemical reaction kinetics and allow for any type of functional representation of boundary conditions and internal heat generation. TOPAZ3D can solve problems of diffuse and specular band radiation in an enclosure coupled with conduction in the material surrounding the enclosure. Additional features include thermal contact resistance across an interface, bulk fluids, phase change, and energy balances.

Shapiro, A.B. [Lawrence Livermore National Lab., CA (United States)

1992-02-24T23:59:59.000Z

97

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

98

3-D Cavern Enlargement Analyses  

SciTech Connect (OSTI)

Three-dimensional finite element analyses simulate the mechanical response of enlarging existing caverns at the Strategic Petroleum Reserve (SPR). The caverns are located in Gulf Coast salt domes and are enlarged by leaching during oil drawdowns as fresh water is injected to displace the crude oil from the caverns. The current criteria adopted by the SPR limits cavern usage to 5 drawdowns (leaches). As a base case, 5 leaches were modeled over a 25 year period to roughly double the volume of a 19 cavern field. Thirteen additional leaches where then simulated until caverns approached coalescence. The cavern field approximated the geometries and geologic properties found at the West Hackberry site. This enabled comparisons are data collected over nearly 20 years to analysis predictions. The analyses closely predicted the measured surface subsidence and cavern closure rates as inferred from historic well head pressures. This provided the necessary assurance that the model displacements, strains, and stresses are accurate. However, the cavern field has not yet experienced the large scale drawdowns being simulated. Should they occur in the future, code predictions should be validated with actual field behavior at that time. The simulations were performed using JAS3D, a three dimensional finite element analysis code for nonlinear quasi-static solids. The results examine the impacts of leaching and cavern workovers, where internal cavern pressures are reduced, on surface subsidence, well integrity, and cavern stability. The results suggest that the current limit of 5 oil drawdowns may be extended with some mitigative action required on the wells and later on to surface structure due to subsidence strains. The predicted stress state in the salt shows damage to start occurring after 15 drawdowns with significant failure occurring at the 16th drawdown, well beyond the current limit of 5 drawdowns.

EHGARTNER, BRIAN L.; SOBOLIK, STEVEN R.

2002-03-01T23:59:59.000Z

99

Design for reliability of BEoL and 3-D TSV structures – A joint effort of FEA and innovative experimental techniques  

SciTech Connect (OSTI)

Copper-TSVs for 3D-IC-integration generate novel challenges for reliability analysis and prediction, e.g. the need to master multiple failure criteria for combined loading including residual stress, interface delamination, cracking and fatigue issues. So, the thermal expansion mismatch between copper and silicon leads to a stress situation in silicon surrounding the TSVs which is influencing the electron mobility and as a result the transient behavior of transistors. Furthermore, pumping and protrusion of copper is a challenge for Back-end of Line (BEoL) layers of advanced CMOS technologies already during manufacturing. These effects depend highly on the temperature dependent elastic-plastic behavior of the TSV-copper and the residual stresses determined by the electro deposition chemistry and annealing conditions. That’s why the authors pushed combined simulative/experimental approaches to extract the Young’s-modulus, initial yield stress and hardening coefficients in copper-TSVs from nanoindentation experiments, as well as the temperature dependent initial yield stress and hardening coefficients from bow measurements due to electroplated thin copper films on silicon under thermal cycling conditions. A FIB trench technique combined with digital image correlation is furthermore used to capture the residual stress state near the surface of TSVs. The extracted properties are discussed and used accordingly to investigate the pumping and protrusion of copper-TSVs during thermal cycling. Moreover, the cracking and delamination risks caused by the elevated temperature variation during BEoL ILD deposition are investigated with the help of fracture mechanics approaches.

Auersperg, Jürgen; Vogel, Dietmar; Auerswald, Ellen; Rzepka, Sven; Michel, Bernd [Fraunhofer ENAS, Micro Materials Center, Technologie-Campus 3, D-09126 Chemnitz (Germany)

2014-06-19T23:59:59.000Z

100

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 ice-lattice structures" 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 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

102

A 3D POM–MOF composite based on Ni(??) ion and 2,2?-bipyridyl-3,3?-dicarboxylic acid: Crystal structure and proton conductivity  

SciTech Connect (OSTI)

We have succeeded in constructing a 3D POM–MOF, (H[Ni(Hbpdc)(H{sub 2}O){sub 2}]{sub 2}[PW{sub 12}O{sub 40}]·8H{sub 2}O){sub n} (H{sub 2}bpdc=2,2?-bipyridyl-3,3?-dicarboxylic acid), by the controllable self-assembly of H{sub 2}bpdc, Keggin-anions and Ni{sup 2+} ions based on the electrostatic and coordination interactions. Interestingly, Hbpdc{sup ?} as polydentate organic ligands and Keggin-anion as polydentate inorganic ligands are covalently linked transition-metal nickel at the same time. The title complex represents a new example of introducing the metal N-heterocyclic multi-carboxylic acid frameworks into POMs chemistry. Based on Keggin-anions being immobilized as part of the metal N-heterocyclic multi-carboxylic acid framework, the title complex realizes four approaches in the 1D hydrophilic channel used to engender proton conductivity in MOFs. Its water adsorption isotherm at room temperature and pressure shows that the water content in it was 31 cm{sup 3} g{sup ?1} at the maximum allowable humidity, corresponding to 3.7 water molecules per unit formula. It exhibits good proton conductivities (10{sup ?4}–10{sup ?3} S cm{sup ?1}) at 100 °C in the relative humidity range 35–98%. The corresponding activation energy (E{sub a}) of conductivity was estimated to be 1.01 eV. - Graphical abstract: A POM–MOF composite constructed by Keggin-type polyanion, Ni{sup 2+} and H{sub 2}bpdc shows good proton conductivities of 10{sup ?4}–10{sup ?3} S cm{sup ?1} at 100 °C under 35–98% RH. - Highlights: • A POM–MOF was constructed by combining metal N-heterocyclic multi-carboxylic acid framework and Keggin anion. • It opens a pathway for design and synthesis of multifunctional hybrid materials based on two building units. • Three types of potential proton-carriers have been assembled in the 1D hydrophilic channels of the POM–MOF. • It achieved such proton conductivities as 10{sup ?4}–10{sup ?3} S cm{sup ?1} at 100 °C in the RH range 35–98%.

Wei, Meilin, E-mail: weimeilinhd@163.com [School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007 (China); Wang, Xiaoxiang; Sun, Jingjing [School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007 (China); Duan, Xianying, E-mail: dxynumber@163.com [Institute of Chemistry, Henan Academy of Sciences, Zhengzhou 450002 (China)

2013-06-15T23:59:59.000Z

103

Using a 3D finite element forward modeling code to analyze resistive structures with controlled-source electromagnetics in a marine environment  

E-Print Network [OSTI]

to simulate CSEM experiments. The objective of the present study is to model the changes in electromagnetic response for a resistive disk and a more geometrically complex structure, which are rough approximations of hydrocarbon reservoirs. The parameters...

King, Joshua David

2005-02-17T23:59:59.000Z

104

Restructuring of RELAP5-3D  

SciTech Connect (OSTI)

The RELAP5-3D source code is unstructured with many interwoven logic flow paths. By restructuring the code, it becomes easier to read and understand, which reduces the time and money required for code development, debugging, and maintenance. A structured program is comprised of blocks of code with one entry and exit point and downward logic flow. IF tests and DO loops inherently create structured code, while GOTO statements are the main cause of unstructured code. FOR_STRUCT is a commercial software package that converts unstructured FORTRAN into structured programming; it was used to restructure individual subroutines. Primarily it transforms GOTO statements, ARITHMETIC IF statements, and COMPUTED GOTO statements into IF-ELSEIF-ELSE tests and DO loops. The complexity of RELAP5-3D complicated the task. First, FOR_STRUCT cannot completely restructure all the complex coding contained in RELAP5-3D. An iterative approach of multiple FOR_STRUCT applications gave some additional improvements. Second, FOR_STRUCT cannot restructure FORTRAN 90 coding, and RELAP5-3D is partially written in FORTRAN 90. Unix scripts for pre-processing subroutines into coding that FOR_STRUCT could handle and post-processing it back into FORTRAN 90 were written. Finally, FOR_STRUCT does not have the ability to restructure the RELAP5-3D code which contains pre-compiler directives. Variations of a file were processed with different pre-compiler options switched on or off, ensuring that every block of code was restructured. Then the variations were recombined to create a completely restructured source file. Unix scripts were written to perform these tasks, as well as to make some minor formatting improvements. In total, 447 files comprising some 180,000 lines of FORTRAN code were restructured. These showed significant reduction in the number of logic jumps contained as measured by reduction in the number of GOTO statements and line labels. The average number of GOTO statements per subroutine dropped from 8.8 before restructuring to 5.3 afterwards, a reduction of 40%. The maximum number of GOTO statements in any subroutine dropped from 213 to 99, a factor of 2.1. Finally, the maximum number of statement labels dropped from 210 to 43, a factor of nearly 5. While many blocks of code remain unstructured, a much greater fraction of the code is now structured. These measurements indicate a serious reduction in degree of interweaving of logic paths.

George Mesina; Joshua Hykes

2005-09-01T23:59:59.000Z

105

Content-oriented 3D reconstruction from image streams  

E-Print Network [OSTI]

the automatisation of SaM from image sequences and videosby the input images to improve 3D reconstructions in SaMMo- tion (SaM). Structure and Motion from image sequences or

Knoblauch, Daniel

2011-01-01T23:59:59.000Z

106

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

107

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

108

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

109

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

110

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

111

E-Print Network 3.0 - automated 3-d voxel Sample Search Results  

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

Summary: of design automation algorithms and (b) Exposure to state-of-the-art 3D printing hardware. Time commitment... Evolving Novel Multi-Material 3D Structures and...

112

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.

113

Hydrogen in polar intermetallics: Syntheses and structures of the ternary Ca5Bi3D0.93, Yb5Bi3Hx, and Sm5Bi3H~1 by powder neutron or single crystal X-ray diffraction  

SciTech Connect (OSTI)

The syntheses of the title compounds are described in detail. Structural characterizations from refinements of single crystal X-ray diffraction data for Yb{sub 5}Bi{sub 3}H{sub x} and Sm{sub 5}Bi{sub 3}H{sub 1} and of powder neutron diffraction data for Ca{sub 5}Bi{sub 3}D{sub 0.93(3)} are reported. These confirm that all three crystallize with the heavy atom structure type of {beta}-Yb{sub 5}Sb{sub 3}, and the third gives the first proof that the deuterium lies in the center of nominal calcium tetrahedra, isostructural with the Ca{sub 5}Sb{sub 3}F-type structure. These Ca and Yb phases are particularly stable with respect to dissociation to Mn{sub 5}Si{sub 3}-type product plus H{sub 2}. Some contradictions in the literature regarding Yb{sub 5}Sb{sub 3} and Yb{sub 5}Sb{sub 3}H{sub x} phases are considered in terms of adventitious hydrogen impurities that are generated during reactions in fused silica containers at elevated temperatures.

Leon-Escamilla, E. Alejandro; Dervenagas, Panagiotis; Stasis, Constantine; Corbett, John D.

2010-01-01T23:59:59.000Z

114

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

115

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.

116

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

117

Build-to-Last: Strength to Weight 3D Printed Objects Andrei Sharf2  

E-Print Network [OSTI]

Build-to-Last: Strength to Weight 3D Printed Objects Lin Lu1 Andrei Sharf2 Haisen Zhao1 Yuan Wei1-right). The 3D printed hollowed solid is built-to-last using our interior structure (right). Abstract stress. Thus, our system allows to build-to-last 3D printed objects with large control over

Sharf, Andrei

118

Make It Stand: Balancing Shapes for 3D Fabrication Romain Prvost1  

E-Print Network [OSTI]

modeling Keywords: Static equilibrium, structural stability, 3D printing, optimization, interactive shape intended, stable pose. With the advent of 3D printing technologies, it becomes very simple to produce in a computer this is of no consequence: the laws of physics do not apply. However, fabrication through 3D

Lévy, Bruno

119

Program stat3d.c /* Program: stat3d.c */  

E-Print Network [OSTI]

85 Program stat3d.c /************************************************************************/ /* */ /* Program: stat3d.c */ /* Purpose: To read in a 3-D image and output phase volumes */ /* and report("Phase Volume Surface Volume Surface \

Bentz, Dale P.

120

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

The Makerbot: Desktop 3D printing  

E-Print Network [OSTI]

The Makerbot: Desktop 3D printing Matthew Roughan School of Mathematical Sciences matthew is Lots of maths hidden in something like 3D printing Geometry and Linear algebra ++ Same math used

Roughan, Matthew

122

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

123

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"

124

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

125

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

126

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

127

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

128

DSI3D - RCS user manual  

SciTech Connect (OSTI)

The DSI3D-RCS code is designed to numerically evaluate radar cross sections on complex objects by solving Maxwell`s curl equations in the time-domain and in three space dimensions. The code has been designed to run on the new parallel processing computers as well as on conventional serial computers. The DSI3D-RCS code is unique for the following reasons: Allows the use of unstructured non-orthogonal grids, allows a variety of cell or element types, reduces to be the Finite Difference Time Domain (FDTD) method when orthogonal grids are used, preserves charge or divergence locally (and globally), is conditionally stable, is selectively non-dissipative, and is accurate for non-orthogonal grids. This method is derived using a Discrete Surface Integration (DSI) technique. As formulated, the DSI technique can be used with essentially arbitrary unstructured grids composed of convex polyhedral cells. This implementation of the DSI algorithm allows the use of unstructured grids that are composed of combinations of non-orthogonal the use of unstructured grids that are composed of combinations of non-orthogonal hexahedrons, tetrahedrons, triangular prisms and pyramids. This algorithm reduces to the conventional FDTD method when applied on a structured orthogonal hexahedral grid.

Madsen, N.; Steich, D.; Cook, G. [and others

1995-08-23T23:59:59.000Z

129

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

130

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

131

3D Mapping Solutions GmbH Kinematic 3D Laser Scanning  

E-Print Network [OSTI]

1 3D Mapping Solutions GmbH Kinematic 3D Laser Scanning for Road or Railway Construction Surveys 1. International Conference on Machine Control & Guidance ­ June 24­26, 2008, ETH Zürich 3D Mapping Solutions GmbH info@3d-mapping.de · Kinematic Survey of Road and Railway Networks for What we are doing

132

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

133

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

134

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

135

3D PRINTING FOR END PRODUCTS.  

E-Print Network [OSTI]

?? Our aim is to answer whether or not 3D printing is capable of achieving mass customization and mass production, since answering this might help… (more)

Morales Cantú, Karina Marisol

2012-01-01T23:59:59.000Z

136

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

137

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

138

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

139

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

140

Fabrication of 3D Silicon Sensors  

SciTech Connect (OSTI)

Silicon sensors with a three-dimensional (3-D) architecture, in which the n and p electrodes penetrate through the entire substrate, have many advantages over planar silicon sensors including radiation hardness, fast time response, active edge and dual readout capabilities. The fabrication of 3D sensors is however rather complex. In recent years, there have been worldwide activities on 3D fabrication. SINTEF in collaboration with Stanford Nanofabrication Facility have successfully fabricated the original (single sided double column type) 3D detectors in two prototype runs and the third run is now on-going. This paper reports the status of this fabrication work and the resulted yield. The work of other groups such as the development of double sided 3D detectors is also briefly reported.

Kok, A.; Hansen, T.E.; Hansen, T.A.; Lietaer, N.; Summanwar, A.; /SINTEF, Oslo; Kenney, C.; Hasi, J.; /SLAC; Da Via, C.; /Manchester U.; Parker, S.I.; /Hawaii U.

2012-06-06T23:59:59.000Z

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

142

Testbeam and Laboratory Characterization of CMS 3D Pixel Sensors  

E-Print Network [OSTI]

The pixel detector is the innermost tracking device in CMS, reconstructing interaction vertices and charged particle trajectories. The sensors located in the innermost layers of the pixel detector must be upgraded for the ten-fold increase in luminosity expected with the High- Luminosity LHC (HL-LHC) phase. As a possible replacement for planar sensors, 3D silicon technology is under consideration due to its good performance after high radiation fluence. In this paper, we report on pre- and post- irradiation measurements for CMS 3D pixel sensors with different electrode configurations. The effects of irradiation on electrical properties, charge collection efficiency, and position resolution of 3D sensors are discussed. Measurements of various test structures for monitoring the fabrication process and studying the bulk and surface properties, such as MOS capacitors, planar and gate-controlled diodes are also presented.

M. Bubna; E. Alagoz; A. Krzywda; O. Koybasi; K. Arndt; D. Bortoletto; I. Shipsey; G. Bolla; A. Kok; T. -E. Hansen; T. A. Hansen; G. U. Jensen; J. M. Brom; M. Boscardin; J. Chramowicz; J. Cumalat; G. F. Dalla Betta; M. Dinardo; A. Godshalk; M. Jones; M. D. Krohn; A. Kumar; C. M. Lei; L. Moroni; L. Perera; M. Povoli; A. Prosser; R. Rivera; A. Solano; M. M. Obertino; S. Kwan; L. Uplegger; C. D. Via; L. Vigani; S. Wagner

2014-04-30T23:59:59.000Z

143

Generating 3D volumetric meshes of internal and external fruit Mikolaj Cieslak1,2  

E-Print Network [OSTI]

Generating 3D volumetric meshes of internal and external fruit structure Mikolaj Cieslak1, Université Montpellier 2, 34090 Montpellier, France Keywords: Solanum lycopersicum, 3D fruit modelling, fruit quality, functional-structural plant models Abstract Two essential functions in determining fruit quality

Paris-Sud XI, Université de

144

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

145

Chemical Rearrangement under Hydrothermal Conditions: Formation of Polymeric Chains (CuX)2(dpiz) and (CuX)3(dpiz) (X ) Cl, Br; dpiz ) Dipyrido[1,2-a:2,3-d]imidazole) and Crystal Structures of  

E-Print Network [OSTI]

rearrangement during the hydrothermal self- assembly process in forming copper dipyrido[1,2-a:2,3-d]imi- dazoleChemical Rearrangement under Hydrothermal Conditions: Formation of Polymeric Chains (CuX)2(dpiz the hydrothermal method7 has been widely applied in the synthesis and crystal growth of many inorganic compounds

Li, Jing

146

How 3D Printers Work | Department of Energy  

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

How 3D Printers Work How 3D Printers Work June 19, 2014 - 9:28am Addthis How does 3D printing work? Watch a 3D printing timelapse video and read on below to learn everything you...

147

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.

148

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

149

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

150

3D Hardware Canaries Sebastien Briais4  

E-Print Network [OSTI]

surround the whole target and protect its content from physical attacks. 3D ICs are rel- atively hard reporting pre- liminary implementation results on silicon), we introduce a "hardware canary". The ca- nary

151

3D Printing: Convergences, Frictions, Fluidity.  

E-Print Network [OSTI]

??The emergence of desktop ‘3D printing’ is not only a technological development, but equally a social and economic phenomenon that actively (and often contentiously) co-produces… (more)

Ree, Robert

2011-01-01T23:59:59.000Z

152

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 

153

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

154

Large area 3D reconstructions from underwater Oscar Pizarro, Ryan Eustice and Hanumant Singh  

E-Print Network [OSTI]

and validated system for processing optical images acquired from an underwater robotic vehicle to form a 3D of processing is a bundle adjustment that provides the 3D structure, camera poses and uncertainty estimates a robotic vehicle or towed sled. Such surveys are required to study hydrothermal vents and spreading ridges

Eustice, Ryan

155

Automation for Cryo-TEM: From Specimen Grid to 3D  

E-Print Network [OSTI]

Automation for Cryo-TEM: From Specimen Grid to 3D Map B. Carragher, D. Fellmann, N. Kisseberth, R://www.itg.uiuc.edu #12;AUTOMATION FOR CRYO-TEM: FROM SPECIMEN GRID TO 3D MAP B. Carragher, D. Fellmann, N. Kisseberth, R map of a macromolecular structure automatically and within hours of inserting a specimen

156

Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries  

E-Print Network [OSTI]

Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries Ralf of composite materials used in Li-ion batteries. In this paper, we develop a stochastic simulation model in 3D, Stochastic Simulation Model, Structural Analysis, Marked Point Process, Germ-Grain Model, Model Fitting

Schmidt, Volker

157

Customizing mesoscale self-assembly with 3D printing  

E-Print Network [OSTI]

Self-assembly due to capillary forces is a common method for generating 2D mesoscale structures from identical floating particles at the liquid-air interface. Designing building blocks to obtain a desired mesoscopic structure is a scientific challenge. We show herein that it is possible to shape the particles with a low cost 3D printer, for composing specific mesoscopic structures. Our method is based on the creation of capillary multipoles inducing either attractive or repulsive forces. Since capillary interactions can be downscaled, our method opens new ways to low cost microfabrication.

M. Poty; G. Lumay; N. Vandewalle

2013-10-17T23:59:59.000Z

158

Fast Freehand Acquisition of 3D Objects and their Visualization  

E-Print Network [OSTI]

-world objects in a large number of fields of applications, such as the entertainment industry, design], and the application of structured light [3]. Image-based methods are, e.g., stereo vi- sion or multi-camera techniques://www.inf.fh-dortmund.de/personen/professoren/peters/ Abstract. In many applications 3d models of real-world objects are re- quired. We introduce a tool which

Peters, Gabriele

159

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.

160

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

162

3D periodic dielectric composite homogenization based on the Generalized Source Method  

E-Print Network [OSTI]

The article encloses a new Fourier space method for rigorous optical simulation of 3D periodic dielectric structures. The method relies upon rigorous solution of Maxwell's equations in complex composite structures by the Generalized Source Method. Extremely fast GPU enabled calculations provide a possibility for an efficient search of eigenmodes in 3D periodic complex structures on the basis of rigorously obtained resonant electromagnetic response. The method is applied to the homogenization problem demonstrating a complete anisotropic dielectric tensor retrieval.

Shcherbakov, Alexey A

2015-01-01T23:59:59.000Z

163

Simnple, portable, 3-D projection routine  

SciTech Connect (OSTI)

A 3-D projection routine is presented for use in computer graphics applications. The routine is simple enough to be considered portable, and easily modified for special problems. There is often the need to draw three-dimensional objects on a two-dimensional plotting surface. For the object to appear realistic, perspective effects must be included that allow near objects to appear larger than distant objects. Several 3-D projection routines are commercially available, but they are proprietary, not portable, and not easily changed by the user. Most are restricted to surfaces that are functions of two variables. This makes them unsuitable for viewing physical objects such as accelerator prototypes or propagating beams. This report develops a very simple algorithm for 3-D projections; the core routine is only 39 FORTRAN lines long. It can be easily modified for special problems. Software dependent calls are confined to simple drivers that can be exchanged when different plotting software packages are used.

Wagner, J.S.

1987-04-01T23:59:59.000Z

164

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

165

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

166

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

167

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

168

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

169

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

170

METRIC FOR AUTOMATED DETECTION AND IDENTIFICATION OF 3D CAD ELEMENTS IN 3D SCANNED  

E-Print Network [OSTI]

of 3D Computer-Aided Design (CAD) engines and more generally of Building Information Models on one side states is critical for performing efficient building and infrastructure construction, maintenance, and management. Three- dimensional (3D) laser scanners have the potential to be successfully applied

Bosché, Frédéric

171

3-D hydro + cascade model at RHIC  

E-Print Network [OSTI]

We present a 3-D hydro + cascade model in which viscosity and a realistic freezeout process for the hadronic phase are taken into account. We compare our results to experimental data and discuss the finite state interaction effects on physical observables.

Chiho Nonaka; Steffen A. Bass

2005-11-07T23:59:59.000Z

172

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

173

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...

174

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...

175

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...

176

A 2D + 3D rich data approach to scene understanding  

E-Print Network [OSTI]

On your one-minute walk from the coffee machine to your desk each morning, you pass by dozens of scenes - a kitchen, an elevator, your office - and you effortlessly recognize them and perceive their 3D structure. But this ...

Xiao, Jianxiong

2013-01-01T23:59:59.000Z

177

Preliminary Characterisation of Low-Temperature Bonded Copper Interconnects for 3-D Integrated Circuits  

E-Print Network [OSTI]

Three dimensional (3-D) integrated circuits can be fabricated by bonding previously processed device layers using metal-metal bonds that also serve as layer-to-layer interconnects. Bonded copper interconnects test structures ...

Leong, Hoi Liong

178

A divide-and-conquer method for 3D capacitance extraction  

E-Print Network [OSTI]

This thesis describes a divide-and-conquer algorithm to improve the 3D boundary element method (BEM) for capacitance extraction. We divide large interconnect structures into small sections, set new boundary conditions using the borderfor each...

Yu, Fangqing

2004-09-30T23:59:59.000Z

179

Quantitative prediction of 3D solution shape and flexibility of nucleic acid nanostructures  

E-Print Network [OSTI]

DNA nanotechnology enables the programmed synthesis of intricate nanometer-scale structures for diverse applications in materials and biological science. Precise control over the 3D solution shape and mechanical flexibility ...

Kilchherr, F.

180

Fab trees for designing complex 3D printable materials ; Material design by fab trees for 3D printing .  

E-Print Network [OSTI]

??With more 3D printable materials being invented, 3D printers nowadays could replicate not only geometries, but also appearance and physical properties. On the software side,… (more)

Wang, Ye, M. Eng. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d ice-lattice structures" 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 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

182

Techniques for interactive 3-D scientific visualization  

SciTech Connect (OSTI)

Interest in interactive 3-D graphics has exploded of late, fueled by (a) the allure of using scientific visualization to go where no-one has gone before'' and (b) by the development of new input devices which overcome some of the limitations imposed in the past by technology, yet which may be ill-suited to the kinds of interaction required by researchers active in scientific visualization. To resolve this tension, we propose a flat 5-D'' environment in which 2-D graphics are augmented by exploiting multiple human sensory modalities using cheap, conventional hardware readily available with personal computers and workstations. We discuss how interactions basic to 3-D scientific visualization, like searching a solution space and comparing two such spaces, are effectively carried out in our environment. Finally, we describe 3DMOVE, an experimental microworld we have implemented to test out some of our ideas. 40 refs., 4 figs.

Glinert, E.P. (Rensselaer Polytechnic Inst., Troy, NY (USA). Dept. of Computer Science); Blattner, M.M. (Anderson (M.D.) Hospital and Tumor Inst., Houston, TX (USA). Dept. of Biomathematics California Univ., Davis, CA (USA). Dept. of Applied Science Lawrence Livermore National Lab., CA (USA)); Becker, B.G. (California Univ., Davis, CA (USA). Dept. of Applied Science Lawrence Livermore National La

1990-09-24T23:59:59.000Z

183

3D Printing of Scintillating Materials  

E-Print Network [OSTI]

We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\\% of that of commercial polystyrene based scintillators. We discuss the applicability of these techniques and propose future enhancements that will allow tailoring the printed scintillation detectors to various application.

Mishnayot, Y; Cooperstein, I; Magdassi, S; Ron, G

2014-01-01T23:59:59.000Z

184

3D Printing of Scintillating Materials  

E-Print Network [OSTI]

We demonstrate, for the first time, the applicability of 3D printing technique to the manufacture of scintillation detectors. We report of a formulation, usable in stereolithographic printing, that exhibits scintillation efficiency on the order of 30\\% of that of commercial polystyrene based scintillators. We discuss the applicability of these techniques and propose future enhancements that will allow tailoring the printed scintillation detectors to various application.

Y. Mishnayot; M. Layani; I. Cooperstein; S. Magdassi; G. Ron

2014-06-15T23:59:59.000Z

185

Parameterization and Analysis of 3-D Solar Radiative Transfer in Clouds: Final Report  

SciTech Connect (OSTI)

This document reports on the research that we have done over the course of our two-year project. The report also covers the research done on this project during a 1 year no-cost extension of the grant. Our work has had two main, inter-related thrusts: The first thrust was to characterize the response of stratocumulus cloud structure and dynamics to systematic changes in cloud infrared radiative cooling and solar heating using one-dimensional radiative transfer models. The second was to couple a three-dimensional (3-D) solar radiative transfer model to the Large Eddy Simulation (LES) model that we use to simulate stratocumulus. The purpose of the studies with 3-D radiative transfer was to examine the possible influences of 3-D photon transport on the structure, evolution, and radiative properties of stratocumulus. While 3-D radiative transport has been examined in static cloud environments, few studies have attempted to examine whether the 3-D nature of radiative absorption and emission influence the structure and evolution of stratocumulus. We undertook this dual approach because only a small number of LES simulations with the 3-D radiative transfer model are possible due to the high computational costs. Consequently, LES simulations with a 1-D radiative transfer solver were used in order to examine the portions of stratocumulus parameter space that may be most sensitive to perturbations in the radiative fields. The goal was then to explore these sensitive regions with LES using full 3-D radiative transfer. Our overall goal was to discover whether 3-D radiative processes alter cloud structure and evolution, and whether this may have any indirect implications for cloud radiative properties. In addition, we collaborated with Dr. Tamas Varni, providing model output fields for his attempt at parameterizing 3-D radiative effects for cloud models.

Jerry Y. Harrington

2012-09-21T23:59:59.000Z

186

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

187

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

188

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

189

Helmholtz Theorem for Differential Forms in 3-D Euclidean Space  

E-Print Network [OSTI]

There are significant differences between Helmholtz and Hodge's decomposition theorems, but both share a common flavor. This paper is a first step to bring them together. We here produce Helmholtz theorems for differential 1-forms and 2-forms in 3-D Euclidean space. We emphasize their common structure in order to facilitate the understanding of another paper, soon to be made public, where a Helmholtz theorem for arbitrary differential forms in arbitrary Euclidean space is presented and which allows one to connect (actually to derive from it) an improvement of Hodge's decomposition theorem.

Jose G. Vargas

2014-04-20T23:59:59.000Z

190

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

191

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

192

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

193

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

194

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

195

3D Numerical Experimentation on the Core Helium Flash of low-mass Red Giants  

E-Print Network [OSTI]

We model the core helium flash in a low-mass red giant using Djehuty, a fully three-dimensional (3D) code. The 3D structures were generated from converged models obtained during the 1D evolutionary calculation of a 1$\\Msun$ star. Independently of which starting point we adopted, we found that after some transient relaxation the 3D model settled down with a briskly convecting He-burning shell that was not very different from what the 1D model predicted.

David S. P. Dearborn; John C. Lattanzio; Peter P. Eggleton

2005-12-02T23:59:59.000Z

196

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

197

Interchanging Interactive 3-d Graphics for Astronomy  

E-Print Network [OSTI]

We demonstrate how interactive, three-dimensional (3-d) scientific visualizations can be efficiently interchanged between a variety of mediums. Through the use of an appropriate interchange format, and a unified interaction interface, we minimize the effort to produce visualizations appropriate for undertaking knowledge discovery at the astronomer's desktop, as part of conference presentations, in digital publications or as Web content. We use examples from cosmological visualization to address some of the issues of interchange, and to describe our approach to adapting S2PLOT desktop visualizations to the Web. Supporting demonstrations are available at http://astronomy.swin.edu.au/s2plot/interchange/

C. J. Fluke; D. G. Barnes; N. T. Jones

2008-12-09T23:59:59.000Z

198

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

199

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

200

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

3D J-Integral Capability in Grizzly  

SciTech Connect (OSTI)

This report summarizes work done to develop a capability to evaluate fracture contour J-Integrals in 3D in the Grizzly code. In the current fiscal year, a previously-developed 2D implementation of a J-Integral evaluation capability has been extended to work in 3D, and to include terms due both to mechanically-induced strains and due to gradients in thermal strains. This capability has been verified against a benchmark solution on a model of a curved crack front in 3D. The thermal term in this integral has been verified against a benchmark problem with a thermal gradient. These developments are part of a larger effort to develop Grizzly as a tool that can be used to predict the evolution of aging processes in nuclear power plant systems, structures, and components, and assess their capacity after being subjected to those aging processes. The capabilities described here have been developed to enable evaluations of Mode- stress intensity factors on axis-aligned flaws in reactor pressure vessels. These can be compared with the fracture toughness of the material to determine whether a pre-existing flaw would begin to propagate during a pos- tulated pressurized thermal shock accident. This report includes a demonstration calculation to show how Grizzly is used to perform a deterministic assessment of such a flaw propagation in a degraded reactor pressure vessel under pressurized thermal shock conditions. The stress intensity is calculated from J, and the toughness is computed using the fracture master curve and the degraded ductile to brittle transition temperature.

Benjamin Spencer; Marie Backman; Pritam Chakraborty; William Hoffman

2014-09-01T23:59:59.000Z

202

adaptive 3-d segmentation: Topics by E-print Network  

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

Farag, Aly A. 343 946 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 18, NO. 10, OCTOBER 1999 Model-Based Quantitation of 3-D Magnetic Biology and Medicine Websites Summary: of 3-D...

203

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

204

Fab trees for designing complex 3D printable materials  

E-Print Network [OSTI]

With more 3D printable materials being invented, 3D printers nowadays could replicate not only geometries, but also appearance and physical properties. On the software side, the tight coupling between geometry and material ...

Wang, Ye, M. Eng. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

205

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 in Ferns 3D Visualization of Water Transport in Ferns Print Monday, 08 April 2013 00:00 Plants transport water through elongated cells called...

206

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...

207

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

208

abnormal 3-d mri: Topics by E-print Network  

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

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...

209

auslese von 3d: Topics by E-print Network  

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

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...

210

autostereoscopic 3d display: Topics by E-print Network  

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

or restrict themselves to light dif- fusion in volumes. We use multi-material 3D printing to fabricate objects Additional Key Words and Phrases: 3D printing, optical fibers...

211

Process for 3D chip stacking  

DOE Patents [OSTI]

A manufacturable process for fabricating electrical interconnects which extend from a top surface of an integrated circuit chip to a sidewall of the chip using laser pantography to pattern three dimensional interconnects. The electrical interconnects may be of an L-connect or L-shaped type. The process implements three dimensional (3D) stacking by moving the conventional bond or interface pads on a chip to the sidewall of the chip. Implementation of the process includes: 1) holding individual chips for batch processing, 2) depositing a dielectric passivation layer on the top and sidewalls of the chips, 3) opening vias in the dielectric, 4) forming the interconnects by laser pantography, and 5) removing the chips from the holding means. The process enables low cost manufacturing of chips with bond pads on the sidewalls, which enables stacking for increased performance, reduced space, and higher functional per unit volume.

Malba, Vincent (Livermore, CA)

1998-01-01T23:59:59.000Z

212

Process for 3D chip stacking  

DOE Patents [OSTI]

A manufacturable process for fabricating electrical interconnects which extend from a top surface of an integrated circuit chip to a sidewall of the chip using laser pantography to pattern three dimensional interconnects. The electrical interconnects may be of an L-connect or L-shaped type. The process implements three dimensional (3D) stacking by moving the conventional bond or interface pads on a chip to the sidewall of the chip. Implementation of the process includes: (1) holding individual chips for batch processing, (2) depositing a dielectric passivation layer on the top and sidewalls of the chips, (3) opening vias in the dielectric, (4) forming the interconnects by laser pantography, and (5) removing the chips from the holding means. The process enables low cost manufacturing of chips with bond pads on the sidewalls, which enables stacking for increased performance, reduced space, and higher functional per unit volume. 3 figs.

Malba, V.

1998-11-10T23:59:59.000Z

213

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

214

C § ? Was ist X3D/VRML?  

E-Print Network [OSTI]

C § ? Die Spezifikation von VRML ist an einigen Stellen nicht eindeutig § ? In X3D präzisiert § ? X3D hat 100+ Knoten (aufgeteilt in Components / Profiles) § ? VRML hat nur 54 Knoten § ? X3D hat 3 verschiedene sog. "File Encodings": § ? Classic: sieht aus wie VRML; Suffix =.wrl oder.x3dv- Jede Software, die X3D lesen kann, kann (im Prinzip) auch VRML lesen

Virtuelle Realität; Xd Vrml; G. Zachmann; Verhalten Und Animationen; Achtung Vrml Vr; G. Zachmann; Virtuelle Realität; Simulation Ws; Xd Vrml; Vorteile Von Xd

215

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

216

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"

217

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

218

Tips and Tricks for Using the 3D Interpolation Tool  

E-Print Network [OSTI]

Tips and Tricks for Using the 3D Interpolation Tool This document describes how to download the 3D interpolation tool and use it for the purpose of performing multidimensional analysis on Marine, Atmospheric, Petroleum, Geological, and Groundwater point data. The 3D interpolation tool leverages new methods to solve

Wright, Dawn Jeannine

219

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

220

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.

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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.

222

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

223

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

224

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

225

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

226

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

227

Dynamic 3D Graphics Workload Characterization and the Architectural Implications  

E-Print Network [OSTI]

for this de#12;ciency is the absence of a detailed workload characterization of 3D applications. This paper previous similar studies because it focuses on dynamic behaviors of 3D applications, speci#12;cally, corre- lations of workload statistics among neighboring frames in interactive 3D applications. Such inter

Mitra, Tulika

228

3-D Graphics in R Ohio State University  

E-Print Network [OSTI]

3-D Graphics in R Luke Keele Ohio State University December 6, 2005 Three dimensional graphics may. And it is a good choice, but to get publication quality 3-D graphics requires more work than typically re- quired to produce quality graphics with the wireframe command. The standard 3-D plot command in R is persp. While

Gotelli, Nicholas J.

229

Liquid Phase 3D Printing for Quickly Manufacturing Metal Objects with Low Melting Point Alloy Ink  

E-Print Network [OSTI]

Conventional 3D printings are generally time-consuming and printable metal inks are rather limited. From an alternative way, we proposed a liquid phase 3D printing for quickly making metal objects. Through introducing metal alloys whose melting point is slightly above room temperature as printing inks, several representative structures spanning from one, two and three dimension to more complex patterns were demonstrated to be quickly fabricated. Compared with the air cooling in a conventional 3D printing, the liquid-phase-manufacturing offers a much higher cooling rate and thus significantly improves the speed in fabricating metal objects. This unique strategy also efficiently prevents the liquid metal inks from air oxidation which is hard to avoid otherwise in an ordinary 3D printing. Several key physical factors (like properties of the cooling fluid, injection speed and needle diameter, types and properties of the printing ink, etc.) were disclosed which would evidently affect the printing quality. In addit...

Wang, Lei

2014-01-01T23:59:59.000Z

230

MODELLING OF P450 ACTIVE SITE BASED ON CONSENSUS 3D Jean-Christophe Nebel  

E-Print Network [OSTI]

.nebel@kingston.ac.uk ABSTRACT P450 enzymes constitute a large superfamily of haem- thiolate proteins involved in the metabolism known structures of P450 proteins. The generation of biologically meaningful 3D patterns or motifs from the simultaneous alignment of several P450 structures is a way of overcoming that lack of data. In order to address

Nebel, Jean-Christophe

231

Automatic Bilateral Symmetry Midsagittal Plane Extraction from Pathological 3D Neuroradiological Images  

E-Print Network [OSTI]

, bleed, stroke of the human brain can be determined by a symmetry-based analysis of neural scans showing the brain's 3D internal structure. Detecting departures of this internal structure from its normal bilateral the ideal symmetry plane midsagittalwith respect to which the brain is invariant under re ection

232

Liquid Phase 3D Printing for Quickly Manufacturing Metal Objects with Low Melting Point Alloy Ink  

E-Print Network [OSTI]

Conventional 3D printings are generally time-consuming and printable metal inks are rather limited. From an alternative way, we proposed a liquid phase 3D printing for quickly making metal objects. Through introducing metal alloys whose melting point is slightly above room temperature as printing inks, several representative structures spanning from one, two and three dimension to more complex patterns were demonstrated to be quickly fabricated. Compared with the air cooling in a conventional 3D printing, the liquid-phase-manufacturing offers a much higher cooling rate and thus significantly improves the speed in fabricating metal objects. This unique strategy also efficiently prevents the liquid metal inks from air oxidation which is hard to avoid otherwise in an ordinary 3D printing. Several key physical factors (like properties of the cooling fluid, injection speed and needle diameter, types and properties of the printing ink, etc.) were disclosed which would evidently affect the printing quality. In addition, a basic route to make future liquid phase 3D printer incorporated with both syringe pump and needle arrays was also suggested. The liquid phase 3D printing method, which owns potential values not available in a conventional modality, opens an efficient way for quickly making metal objects in the coming time.

Lei Wang; Jing Liu

2014-02-25T23:59:59.000Z

233

Splitting of 3d quaternion dimensions into 2d-sells and a "world screen technology"  

E-Print Network [OSTI]

A set of basic vectors locally describing metric properties of an arbitrary 2-dimensional (2D) surface is used for construction of fundamental algebraic objects having nilpotent and idempotent properties. It is shown that all possible linear combinations of the objects when multiplied behave as a set of hypercomples (in particular, quaternion) units; thus interior structure of the 3D space dimensions pointed by the vector units is exposed. Geometric representations of elementary surfaces (2D-sells) structuring the dimensions are studied in detail. Established mathematical link between a vector quaternion triad treated as a frame in 3D space and elementary 2D-sells prompts to raise an idea of "world screen" having 1/2 of a space dimension but adequately reflecting kinematical properties of an ensemble of 3D frames.

Alexander P. Yefremov

2012-02-14T23:59:59.000Z

234

Automated 3D reconstruction of neuronal structures from serial sections  

E-Print Network [OSTI]

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

Burton, Brent P

1999-01-01T23:59:59.000Z

235

A Novel Approach for Introducing 3D Cloud Spatial Structure  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-ResearchNew Method andA NewAA NewANovel

236

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

237

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

238

3-D Interpretation Of Magnetotelluric Data At The Bajawa Geothermal...  

Open Energy Info (EERE)

Interpretation Of Magnetotelluric Data At The Bajawa Geothermal Field, Indonesia Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: 3-D...

239

The role of 3D printing in biological anthropology.  

E-Print Network [OSTI]

??The following work explores the role of 3D printing in biological anthropology. A case study approach is used to provide an understanding of two different… (more)

Allard, Travis T.

2006-01-01T23:59:59.000Z

240

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   

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

Making 3D Printed Christmas Ornaments | GE Global Research  

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

This Contributor Santa's sleigh becomes "Intelligent Machine" this Christmas Using 3D Printing to Redesign Santa's Sleigh A Sneak Peek Into Santa's Smarter Sleigh Subscribe to...

242

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

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

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Principal Investigator: Greg Newman, Michael Fehler Organizations: LBL & MIT Track Name April...

243

3D Shape from Silhouette Points in Registered 2D Images Using Conjugate Gradient Method  

E-Print Network [OSTI]

3D Shape from Silhouette Points in Registered 2D Images Using Conjugate Gradient Method Andrzej version of the conjugate gradient method. We take advantage of the structure of the problem to make polynomial function. The approximate problem is solved using a nonlinear conjugate gradient solver that takes

Hoff, William A.

244

Numerical computation of 3D heat transfer in complex parallel convective exchangers using generalized Graetz modes  

E-Print Network [OSTI]

Numerical computation of 3D heat transfer in complex parallel convective exchangers using insights into the most con- tributing structure to exchanges and transfers. Several examples of heat, whilst many other can be found in a recent review [12]. As quoted in [12] conjugate heat transfer

Paris-Sud XI, Université de

245

3D phase-differentiated GDL microstructure generation with binder and PTFE distributions  

E-Print Network [OSTI]

December 2011 Keywords: PEM fuel cell Gas diffusion layer Stochastic generation a b s t r a c exchange membrane fuel cells (PEMFCs) are an attractive alternative for electrical power generation, partic) digital 3D micro- structures in a cost- and time-effective manner for the first time. The results

Kandlikar, Satish

246

Hydrothermal synthesis, crystal structure and properties of a 3D-framework polyoxometalate assembly: [Ag(4,4'-bipy)](OH){l_brace}[Ag(4,4'-bipy)]{sub 2}[PAgW{sub 12}O{sub 40}]{r_brace}.3.5H{sub 2}O  

SciTech Connect (OSTI)

A 3D framework assembly based on the Keggin tungstophosphate POM with silver (I) transition metal and N-ligand organic moiety and of formula [Ag(4,4'-bipy)](OH){l_brace}[Ag(4,4'-bipy)]{sub 2}[PAgW{sub 12}O{sub 40}]{r_brace}.3.5H{sub 2}O (1) (bipy=bipyridine) has been synthesized by hydrothermal method and structurally characterized. The crystal of 1 belongs to triclinic, space group P-1, Mr=3857.27, a=10.2741(3)A, b=11.3723(4)A, c=14.0161(5)A, {alpha}=85.7249(5){sup o}, {beta}=72.8795(5){sup o}, {gamma}=79.9543(5){sup o}, V=1540.61(9)A{sup 3}, Z=1, D{sub calc}=4.158Mgm{sup -3}. The final statistics based on F{sup 2} are GOF=1.045, R{sub 1}=0.0326 and wR{sub 2}=0.0843 for I>2{sigma}(I). X-ray diffraction analysis revealed that the molecular structure of 1 consists of a neutral fragment {l_brace}[Ag{sup I}(4,4'-bipy)]{sub 2}[PAg{sup I}W{sup VI}{sub 12}O{sub 40}]{r_brace}, [Ag{sup I}(4,4'-bipy)]{sup +} cation, hydroxide anion and lattice water molecules. The {l_brace}[Ag{sup I}(4,4'-bipy)]{sub 2}[PAg{sup I}W{sup VI}{sub 12}O{sub 40}]{r_brace} subunits are interconnected through Ag(I) with bipyridine ligands, both surface bridging and terminal oxygen atoms of polyoxoanions (POMs) to represent a novel three-dimensional (3D) polymer with 1D elliptic channels. Meanwhile, the [Ag{sup I}(4,4'-bipy)]{sup +} cations are also linked each other to form 1D chains, and embedded in 1D elliptic channels.

Chen Jianxin [College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007 (China)]. E-mail: jxchen_1964@163.com; Lan Tingyan [College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007 (China); Huang Yuanbiao [College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007 (China); Wei Chunxia [College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007 (China); Li Zhongshui [College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007 (China); Zhang Zhichun [College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007 (China)

2006-06-15T23:59:59.000Z

247

3D The Next Crucial Step in  

E-Print Network [OSTI]

challenge of the first order, this puzzle has confounded theorists in no small measure due to its complexity radiation-hydrodynamic supernova code 2nd-order, Eulerian, unsplit, compressible hydro PPM and piecewise an isoentropy contour of an exploding shell of the core of the star. The fracturing into small structures

248

Prototype Development Capabilities of 3D Spatial Interactions and Failures During Scenario Simulation  

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 report addressed the methods, techniques, and resources used to develop a prototype for using 3D modeling and simulation engine to improve risk analysis and evaluate reactor structures and components for a given scenario. 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; Tony Koonce

2014-09-01T23:59:59.000Z

249

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

250

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.

251

BIOLOGICALLY MOTIVATED 3D FACE RECOGNITION Albert Ali Salah  

E-Print Network [OSTI]

BIOLOGICALLY MOTIVATED 3D FACE RECOGNITION by Albert Ali Salah B.S, in Computer Engineering, Bogazi of Doctor of Philosophy Graduate Program in Bogazi¸ci University 2007 #12;ii BIOLOGICALLY MOTIVATED 3D FACE. Hayim Molinas. #12;iv ACKNOWLEDGEMENTS With gratitude to my PhD advisor Lale Akarun for her boundless

252

Dynamics of Anderson localization in open 3D media  

E-Print Network [OSTI]

We develop a self-consistent theoretical approach to the dynamics of Anderson localization in open three-dimensional (3D) disordered media. The approach allows us to study time-dependent transmission and reflection, and the distribution of decay rates of quasi-modes of 3D disordered slabs near the Anderson mobility edge.

S. E. Skipetrov; B. A. van Tiggelen

2005-11-22T23:59:59.000Z

253

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

254

Anatomic measurement accuracy: CT parameters and 3D rendering effects  

E-Print Network [OSTI]

Anatomic measurement accuracy: CT parameters and 3D rendering effects Brian J Whyms a, E Michael of Neuroscience #12;INTRODUCTION · Measurements from 3D-CT rendering are used in research and clinical management-CT rendering techniques on measurements #12;METHODS Scanned: · 3 human mandibles · a phantom object Phantom

Vorperian, Houri K.

255

An Improved Vertex Caching Scheme for 3D Mesh Rendering  

E-Print Network [OSTI]

An Improved Vertex Caching Scheme for 3D Mesh Rendering Gang Lin and Thomas P.-Y. Yu Abstract to the graphics pipeline during rendering. To make effective use of the cache and facilitate rendering, it is key effective algorithm for generating a sequence for efficient rendering of 3D polygonal meshes based on greedy

Lin, Gang

256

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

257

FRONTIER ADVANCING DELAUNAY TRIANGULATION OF UNORGANIZED 3D POINTS  

E-Print Network [OSTI]

FRONTIER ADVANCING DELAUNAY TRIANGULATION OF UNORGANIZED 3D POINTS INDRIYATI ATMOSUKARTO NATIONAL Science Thesis Title: Frontier Advancing Delaunay Triangulation of Unorga- nized 3D Points. Abstract Mesh the surface shapes of the objects. This thesis describes a novel frontier advancing polygonization algorithm

Leow, Wee Kheng

258

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

259

3D Magnetotelluic characterization of the Coso GeothermalField  

SciTech Connect (OSTI)

Electrical resistivity may contribute to progress inunderstanding geothermal systems by imaging the geometry, bounds andcontrolling structures in existing production, and thereby perhapssuggesting new areas for field expansion. To these ends, a dense grid ofmagnetotelluric (MT) stations plus a single line of contiguous bipolearray profiling has been acquired over the east flank of the Cosogeothermal system. Acquiring good quality MT data in producing geothermalsystems is a challenge due to production related electromagnetic (EM)noise and, in the case of Coso, due to proximity of a regional DCintertie power transmission line. To achieve good results, a remotereference completely outside the influence of the dominant source of EMnoise must be established. Experimental results so far indicate thatemplacing a reference site in Amargosa Valley, NV, 65 miles from the DCintertie, isstill insufficient for noise cancellation much of the time.Even though the DC line EM fields are planar at this distance, theyremain coherent with the nonplanar fields in the Coso area hence remotereferencing produces incorrect responses. We have successfully unwrappedand applied MT times series from the permanent observatory at Parkfield,CA, and these appear adequate to suppress the interference of thecultural EM noise. The efficacy of this observatory is confirmed bycomparison to stations taken using an ultra-distant reference site eastof Socorro, NM. Operation of the latter reference was successful by usingfast ftp internet communication between Coso Junction and the New MexicoInstitute of Mining and Technology, using the University of Utah site asintermediary, and allowed referencing within a few hours of datadownloading at Coso. A grid of 102 MT stations was acquired over the Cosogeothermal area in 2003 and an additional 23 stations were acquired toaugment coverage in the southern flank of the first survey area in 2005.These data have been inverted to a fully three-dimensional conductivitymodel. Initial analysis of the Coso MT data was carried out using 2D MTimaging. An initial 3D conductivity model was constructed from a seriesof 2D resistivity images obtained using the inline electric fieldmeasurements (Zyx impedance elements) along several measurementtransects. This model was then refined through a 3D inversion process.This model shows the controlling geological structures possiblyinfluencing well production at Coso and correlations with mapped surfacefeatures such as faults and regional geoelectric strike. The 3D modelalso illustrates the refinement in positioning of conductivity contactswhen compared to isolated 2D inversion transects. The conductivity modelhas also been correlated with microearthquake locations, well fluidproduction intervals and most importantly with an acoustic and shearvelocity model derived by Wu and Lees (1999). This later correlationshows the near-vertical high conductivity structure on the eastern flankof the producing field is also a zone of increased acoustic velocity andincreased Vp/Vs ratio bounded by mapped fault traces. South of theDevil's Kitchen is an area of high geothermal well density, where highlyconductive near surface material is interpreted as a clay cap alterationzone manifested from the subsurface geothermal fluids and relatedgeochemistry. Beneath the clay cap, however, the conductivity isnondescript, whereas the Vp/Vs ratio is enhanced over the productionintervals. It is recommended that more MT data sites be acquired to thesouthwest of the Devil's Kitchen area to better refine the conductivitymodel in that area.

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

2007-04-23T23:59:59.000Z

260

Applying one-dimensional fluid thermal elements into a 3D CLIC accelerating strucutre  

E-Print Network [OSTI]

A finite element modeling method to simplify the analysis of coupled thermal-structural model for the CLIC accelerating structure is presented. In addition, the results of thermal and structural analyses for the accelerating structure are presented. Instead of using a standard 3D computational fluid dynamics (CFD) method for solving problems involving fluid dynamics and heat transfer in 3D environment, one-dimensional fluid thermal elements are used. In one-dimensional flow, the governing equations of fluid dynamics are considerably simplified. Thus, it is expected that the computational time for more complex simulations becomes shorter. The method was first applied to several test models, which demonstrated the suitability of the one-dimensional flow modeling. The results show that one-dimensional fluid flow reduces the computation time considerably allowing the modeling for the future larger assemblies with sufficient accuracy.

Raatikainen, Riku; Österberg, Kenneth; Riddone, Germana; Samoshkin, Alexander; Gudkov, Dmitry

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

FSU Office of Research Program in Interdisciplinary Computing (PIC) What is 3D printing?  

E-Print Network [OSTI]

(PIC) What is 3D printing? 3D printing is a process of making. 3D printing is distinct from traditional machining techniques, which mostly organs, meat, circuit boards and batteries. 3D printing impacts nearly every

Ronquist, Fredrik

262

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

263

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

264

Differences in growth properties of endometrial cancer in three dimensional (3D) culture and 2D cell monolayer  

SciTech Connect (OSTI)

Three-dimensional (3D) in vitro models have an invaluable role in understanding the behaviour of tumour cells in a well defined microenvironment. This is because some aspects of tumour characteristics cannot be fully recapitulated in a cell monolayer (2D). In the present study, we compared growth patterns, expression of signalling molecules, and metabolism-associated proteins of endometrial cancer cell lines in 3D and 2D cell cultures. Cancer cells formed spherical structures in 3D reconstituted basement membrane (3D rBM), and the morphological appearance was cell line dependent. Cell differentiation was observed after 8 days in the 3D rBM. There was reduced proliferation, detected by less expression of PCNA in 3D rBM than in 2D cell monolayers. The addition of exogenous epidermal growth factor (EGF) to cancer cells induced phosphorylation of EGFR and Akt in both cell culture conditions. The uptake of glucose was selectively altered in the 3D rBM, but there was a lack of association with Glut-1 expression. The secretion of vascular endothelial growth factor (VEGF) and prostaglandin E{sub 2} (PGE{sub 2}) was selectively altered in 3D rBM, and it was cell line dependent. Our data demonstrated that 3D rBM as an in vitro model can influence proliferation and metabolism of endometrial cancer cell behaviour compared to 2D cell monolayer. Changes are specific to individual cell types. The use of 3D rBM is, therefore, important in the in vitro study of targeted anticancer therapies.

Chitcholtan, Kenny, E-mail: kenny.chitcholtan@otago.ac.nz [Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch 8011 (New Zealand)] [Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch 8011 (New Zealand); Asselin, Eric, E-mail: Eric.Asselin@uqtr.ca [Department of Chemistry and Biology, University of Quebec, at Trois-Rivières, C.P. 500, Trois-Rivières, Quebec, Canada G9A 5H7 (Canada)] [Department of Chemistry and Biology, University of Quebec, at Trois-Rivières, C.P. 500, Trois-Rivières, Quebec, Canada G9A 5H7 (Canada); Parent, Sophie, E-mail: Sophie.Parent@uqtr.ca [Department of Chemistry and Biology, University of Quebec, at Trois-Rivières, C.P. 500, Trois-Rivières, Quebec, Canada G9A 5H7 (Canada)] [Department of Chemistry and Biology, University of Quebec, at Trois-Rivières, C.P. 500, Trois-Rivières, Quebec, Canada G9A 5H7 (Canada); Sykes, Peter H., E-mail: peter.sykes@otago.ac.nz [Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch 8011 (New Zealand); Evans, John J., E-mail: john.evans@otago.ac.nz [Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch 8011 (New Zealand); Centre of Neuroendocrinology and The MacDiarmid Institute of Advanced Materials and Nanotechnology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch 8011 (New Zealand)

2013-01-01T23:59:59.000Z

265

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

266

3D printing rises to the occasion | ornl.gov  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICS H.CarbonMarch Value4 3.P D AT E3D3D3D

267

Oxygen line formation in 3D hydrodynamical model atmospheres  

E-Print Network [OSTI]

The formation of [O I], O I and OH lines in metal-poor stars has been studied by means of 3D hydrodynamical model atmospheres. For O I detailed 3D non-LTE calculations have been performed. While the influence of 3D model atmospheres is minor for [O I] and O I lines, the very low temperatures encountered at low metallicities have a drastic impact on the OH lines. As a result, the derived O abundances are found to be systematically overestimated in 1D analyses, casting doubts on the recent claims for a monotonic increase in [O/Fe] towards lower metallicities.

M. Asplund

2000-11-02T23:59:59.000Z

268

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

269

3D assembly and actuation of nanopatterned membranes using nanomagnets  

E-Print Network [OSTI]

A new method for aligning and actuating membranes for 3D nano-assembly based on the interactions of nanomagnets has been developed. Arrays of nanopatterned magnetic material are integrated onto thin-film membranes. It is ...

Nichol, Anthony John

2011-01-01T23:59:59.000Z

270

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"

271

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 through a combined use...

Miller, Brian

2013-05-31T23:59:59.000Z

272

EVENT CLASSIFICATION FOR 3-D POSITION SENSITIVE SEMICONDUCTOR DETECTORS  

E-Print Network [OSTI]

Generation Physics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.2.1 Charge Cloud Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 iv #12;3.1.2 Experimental 3-D Detectors . . . . . . . . . . . . . . . . . . . . . . 50 3.2 Readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3.4 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 IV

He, Zhong

273

3D/4D geospatial visualization using Makai Voyager  

E-Print Network [OSTI]

3D/4D geospatial visualization using Makai Voyager John C. Anderson Makai Ocean Engineering, Inc-based, geospatially-enabled software that can fuse and visualize large, multi-variable data sets that change in space

Frandsen, Jannette B.

274

Topobo : a 3-D constructive assembly system with kinetic memory  

E-Print Network [OSTI]

We introduce Topobo, a 3-D constructive assembly system em- bedded with kinetic memory, the ability to record and playback physical motion. Unique among modeling systems is Topobo's coincident physical input and output ...

Raffle, Hayes Solos, 1974-

2004-01-01T23:59:59.000Z

275

Multinozzle printheads for 3D printing of viscoelastic inks.  

E-Print Network [OSTI]

??A high-pressure microfluidic device for 3D extrusion printing of viscoelastic ink was developed. The device was machined out of poly(methylmethacrylate) (PMMA) using a 3-axis CNC… (more)

Kranz, Stephen

2013-01-01T23:59:59.000Z

276

3D-Printed Car by Local Motors- The Strati  

Broader source: Energy.gov [DOE]

A timelapse video of the production process behind The Strati - the 3D-printed car by Local Motors, which manufactured with Oak Ridge National Laboratory (ORNL) and delivered at the International Manufacturing Technology Show (IMTS) in September of 2014.

277

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

278

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...

279

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

280

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...

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

Automatic 3D facial expression analysis in videos  

E-Print Network [OSTI]

with the background in videos [26] are important topics forSystem for Real-Time 3D Video. IEEE Int. Workshop onExpression Analysis in Videos Ya Chang 1 , Marcelo Vieira

Chang, Y; Vieira, M; Turk, M; Velho, L

2005-01-01T23:59:59.000Z

282

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

283

Beyond 3D Printing: The New Dimensions of Additive Fabrication  

E-Print Network [OSTI]

Additive fabrication, often referred to as 3D printing, is the construction of objects by adding material. This stands in contrast to subtractive methods, which involve removing material by means of milling or cutting. ...

Keating, Steven John

284

2013 Santa Sleigh 3D Printing Winner | GE Global Research  

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

Engineers Pick Winner of 2013 Santa Sleigh 3D Printing Design Contest Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share...

285

3D Module Placement for Congestion and Power Noise Reduction  

E-Print Network [OSTI]

3D Module Placement for Congestion and Power Noise Reduction Jacob R. Minz School of ECE Georgia that copies are not made or distributed for profit or commercial advantage and that copies bear this notice

Lim, Sung Kyu

286

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

287

Review: 3D Printing: Social and Cultural Trajectories Symposium -3D Printing Industry http://3dprintingindustry.com/2013/12/11/review-3d-printing-social-cultural-trajectories-symposium/[12/12/2013 11:25:00 AM  

E-Print Network [OSTI]

Review: 3D Printing: Social and Cultural Trajectories Symposium - 3D Printing Industry http://3dprintingindustry.com/2013/12/11/review-3d-printing-social-cultural-trajectories-symposium/[12/12/2013 11:25:00 AM] Review: 3D Printing: Social and Cultural Trajectories Symposium BY ANGELA DALY & DARCY ALLEN ON WED

288

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

289

3D Hydrodynamical Simulations of Surface Convection in Red Giant Stars. Impact on spectral line formation and abundance analysis  

E-Print Network [OSTI]

We investigate the impact of 3D hydrodynamical model atmospheres of red giant stars at different metallicities on the formation of spectral lines of a number of ions and molecules. We carry out realistic 3D simulations of surface convection in red giant stars with varying stellar parameters. We use the simulations as time-dependent hydrodynamical model stellar atmospheres to compute atomic (Li, O, Na, Mg, Ca, Fe) and molecular (CH, NH, OH) spectral lines under the assumption of local thermodynamic equilibrium (LTE). We compare the line strengths computed in 3D with the results of analogous line formation calculations for 1D, hydrostatic, plane-parallel MARCS model atmospheres in order to estimate the impact of 3D models on the derivation of elemental abundances. The temperature and density inhomogeneities and correlated velocities in 3D models, as well as the differences between the 1D and mean 3D structures significantly affect the predicted line strengths. Under the assumption of LTE, the low atmospheric temperatures of very metal-poor 3D model atmospheres cause the lines from neutral species and molecules to appear stronger than in 1D. Therefore, elemental abundances derived from these lines using 3D models are significantly lower than according to 1D analyses. Differences between 3D and 1D abundances of C, N, and O derived from CH, NH, and OH weak low-excitation lines are found to be in the range -0.5 dex to -1.0 dex for the the red giant stars at [Fe/H]=-3 considered here. At this metallicity, large negative corrections (about -0.8 dex) are also found for weak low-excitation Fe I lines. We caution, however, that departures from LTE might be significant for these and other elements and comparable to the effects due to stellar granulation.

Remo Collet; Martin Asplund; Regner Trampedach

2007-03-26T23:59:59.000Z

290

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

291

Printing out Particle Detectors with 3D-Printers, a Potentially Transformational Advance for HEP Instrumentation  

E-Print Network [OSTI]

This white paper suggests posing a "grand challenge" to the HEP instrumentation community, i.e. the aggressive development of additive manufacturing, also known as 3D-printing, for the production of particle detectors in collaboration with industry. This notion is an outcome of discussions within the instrumentation frontier group during the 2013 APS-DPF Snowmass summer study conducted by the U.S. HEP community. Improvements of current industrial 3D-printing capabilities by one to two orders of magnitude in terms of printing resolution, speed, and object size together with developing the ability to print composite materials could enable the production of any desired 3D detector structure directly from a digital model. Current industrial 3D-printing capabilities are briefly reviewed and contrasted with capabilities desired for printing detectors for particle physics, with micro-pattern gaseous detectors used as a first example. A significant impact on industrial technology could be expected if HEP were to partner with industry in taking on such a challenge.

M. Hohlmann

2013-09-05T23:59:59.000Z

292

Printing out Particle Detectors with 3D-Printers, a Potentially Transformational Advance for HEP Instrumentation  

E-Print Network [OSTI]

This white paper suggests posing a "grand challenge" to the HEP instrumentation community, i.e. the aggressive development of additive manufacturing, also known as 3D-printing, for the production of particle detectors in collaboration with industry. This notion is an outcome of discussions within the instrumentation frontier group during the 2013 APS-DPF Snowmass summer study conducted by the U.S. HEP community. Improvements of current industrial 3D-printing capabilities by one to two orders of magnitude in terms of printing resolution, speed, and object size together with developing the ability to print composite materials could enable the production of any desired 3D detector structure directly from a digital model. Current industrial 3D-printing capabilities are briefly reviewed and contrasted with capabilities desired for printing detectors for particle physics, with micro-pattern gaseous detectors used as a first example. A significant impact on industrial technology could be expected if HEP were to part...

Hohlmann, M

2013-01-01T23:59:59.000Z

293

Radial electric field 3D modeling for wire arrays driving dynamic hohlraums on Z.  

SciTech Connect (OSTI)

The anode-cathode structure of the Z-machine wire array results in a higher negative radial electric field (Er) on the wires near the cathode relative to the anode. The magnitude of this field has been shown to anti-correlate with the axial radiation top/bottom symmetry in the DH (Dynamic Hohlraum). Using 3D modeling, the structure of this field is revealed for different wire-array configurations and for progressive mechanical alterations, providing insight for minimizing the negative Er on the wire array in the anode-to-cathode region of the DH. Also, the 3D model is compared to Sasorov's approximation, which describes Er at the surface of the wire in terms of wire-array parameters.

Mock, Raymond Cecil

2007-06-01T23:59:59.000Z

294

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

295

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

296

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

297

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

298

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

299

Experimental observation of 3-D, impulsive reconnection events in a laboratory plasma  

SciTech Connect (OSTI)

Fast, impulsive reconnection is commonly observed in laboratory, space, and astrophysical plasmas. In this work, impulsive, local, 3-D reconnection is identified for the first time in a laboratory current sheet. The two-fluid, impulsive reconnection events observed on the Magnetic Reconnection Experiment (MRX) [Yamada et al., Phys Plasmas 4, 1936 (1997)] cannot be explained by 2-D models and are therefore fundamentally three-dimensional. Several signatures of flux ropes are identified with these events; 3-D high current density regions with O-point structure form during a slow buildup period that precedes a fast disruption of the reconnecting current layer. The observed drop in the reconnection current and spike in the reconnection rate during the disruption are due to ejection of these flux ropes from the layer. Underscoring the 3-D nature of the events, strong out-of-plane gradients in both the density and reconnecting magnetic field are found to play a key role in this process. Electromagnetic fluctuations in the lower hybrid frequency range are observed to peak at the disruption time; however, they are not the key physics responsible for the impulsive phenomena observed. Important features of the disruption dynamics cannot be explained by an anomalous resistivity model. An important discrepancy in the layer width and force balance between the collisionless regime of MRX and kinetic simulations is also revisited. The wider layers observed in MRX may be due to the formation of flux ropes with a wide range of sizes; consistent with this hypothesis, flux rope signatures are observed down to the smallest scales resolved by the diagnostics. Finally, a 3-D two-fluid model is proposed to explain how the observed out-of-plane variation may lead to a localized region of enhanced reconnection that spreads in the direction of the out-of-plane electron flow, ejecting flux ropes from the layer in a 3-D manner.

Dorfman, S.; Ji, H.; Yamada, M.; Yoo, J.; Lawrence, E.; Myers, C.; Tharp, T. D. [Center for Magnetic Self-Organization, Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)] [Center for Magnetic Self-Organization, Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2014-01-15T23:59:59.000Z

300

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

302

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

303

3D rotational diffusion microrheology using 2D video microscopy  

E-Print Network [OSTI]

We propose a simple way to perform three-dimensional (3D) rotational microrheology using two-dimensional (2D) video microscopy. The 3D rotational brownian motion of micrometric wires in a viscous fluid is deduced from their projection on the focal plane of an optical microscope objective. The rotational diffusion coefficient of the wires of length between 1-100 \\mu m is extracted, as well as their diameter distribution in good agreement with electron microscopy measurements. This is a promising way to characterize soft visco-elastic materials, and probe the dimensions of anisotropic objects.

Rémy Colin; Minhao Yan; Loudjy Chevry; Jean-François Berret; Bérengère Abou

2012-01-05T23:59:59.000Z

304

3D Tracking at the Nanoscale | The Ames Laboratory  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICS H.CarbonMarch Value4 3.P D AT E3D3D Tracking

305

3D Printing in 30 Seconds | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |November 2011 Mon, Next2025 PowerNetwork8th300 MHzMRIYou are3D3D

306

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

307

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

308

Evaluation of PC-ISO for customized, 3D printed, gynecologic 192Ir HDR brachytherapy applicators  

E-Print Network [OSTI]

A, Iuliano L, Violante MG. 3D printing technique applied toTengg-Kobligk H, et al. 3D printing based on imaging data:biocompatible, sterilizable 3D printing material, and its

2015-01-01T23:59:59.000Z

309

Full waveform inversion of a 3-D source inside an artificial rock  

E-Print Network [OSTI]

of a 3-D Source Inside an Artificial Rock Albert C. To andof a 3-D source inside an artificial rock plate inof a 3-D source inside an artificial rock plate is

To, A C; Glaser, Steven D

2005-01-01T23:59:59.000Z

310

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

311

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

312

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

313

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

314

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

315

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

316

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

317

INTERACTION WITH 3D IMAGE DATA THROUGH VOLUME RENDERED VIEWS.  

E-Print Network [OSTI]

, since the 3D image dataset is operated on directly and not transformed into a simple 3 #12; binary weighted compositing with gradient and depth shading. The algorithm is highly optimized for rapid rendering large aggregate computimg power present in many hospitals and laboratories. Mapping from the rendered

Pelizzari, Charles A.

318

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

319

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

320

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.

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

322

Vacuum Compatibility of 3D-Printed Materials  

E-Print Network [OSTI]

The fabrication fidelity and vacuum properties are tested for currently available 3D-printed materials including polyamide, glass, acrylic, and sterling silver. The silver was the only material found to be suitable to ultrahigh vacuum environments due to outgassing and sublimation observed in other materials.

Povilus, A P; Vendeiro, Z; Baquero-Ruiz, M; Fajans, J

2013-01-01T23:59:59.000Z

323

ECG Gated Tomographic reconstruction for 3-D Rotational Coronary Angiography  

E-Print Network [OSTI]

imaging techniques to improve both the safety and the efficacy of coronary angiography interventions the ground for a platform dedicated to the planning and execution of percutaneous coronary inter- ventionsECG Gated Tomographic reconstruction for 3-D Rotational Coronary Angiography Yining HU, Lizhe XIE

Paris-Sud XI, Université de

324

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

325

S-duality in 3D gravity with torsion  

SciTech Connect (OSTI)

The deformation of the connection in three spacetime dimensions by the kinematically equivalent coframe is shown to induce a duality between the (Lorentz-) rotational and translational field momenta, for which the coupling to the deformation parameter is inverted. This new kind of strong/weak duality, pertinent to 3D, is instrumental for studying exact solutions of the 3D Poincare gauge field equations and the particle content of propagating modes on a background of constant curvature. For a topological Chern-Simons model of gravity, the propagating modes 'living' on an Anti-de Sitter (AdS) background correspond to real massive particles. Yang-Mills type generalizations and new cubic Lagrangians are found and completely classified in 3D. AdS or black hole type solutions with constant axial torsion emerge, also for these higher-order Lagrangians with new 'exotic' torsion-curvature couplings. Their pattern complies with our S-duality, with new repercussions for the field redefinition of the metric in 3D quantum gravity and the cosmological constant problem.

Mielke, Eckehard W. [Departamento de Fisica, Universidad Autonoma Metropolitana-Iztapalapa, P.O. Box 55-534, 09340 Mexico D.F. (Mexico)]. E-mail: ekke@xanum.uam.mx; Maggiolo, Ali A. Rincon [Departamento de Fisica, Universidad Autonoma Metropolitana-Iztapalapa, P.O. Box 55-534, 09340 Mexico D.F. (Mexico)

2007-02-15T23:59:59.000Z

326

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

327

3D Duo Binary Turbo Decoder Hardware Implementation  

E-Print Network [OSTI]

Abstract: Each digital communication system needs channel coding to provide a certain quality of service. With the introducation of advanced channel codes like turbo codes and LDPC codes, error correcting near theoretical shannon limit became possible. Many applications require a low error floor in addition. The classical turbo code cannot meet this demand. Increasing the number of components codes, non-binary component codes or code concatenation are solutions for this problem, but come with a large complexity increase. In 2007 a new class of turbo codes, the 3D turbo code, was introduced by Berrou. The 3D turbo code provides a very good convergence and a large minimum distance at a low complexity. To the best of our knowledge this paper presents the first hardware implementation of a 3D turbo decoder. In addition we compare the implementation complexity of the 3D turbo decoder with the 8 and 16-state duo binary turbo decoder on FPGA and in 65nm ASIC technology.

Timo Lehngik-emden; Matthias Alles; Norbert Wehn

328

Overall Dynamic Properties of 3-D periodic elastic composites  

E-Print Network [OSTI]

A method for the homogenization of 3-D periodic elastic composites is presented. It allows for the evaluation of the averaged overall frequency dependent dynamic material constitutive tensors relating the averaged dynamic ?eld variable tensors of velocity, strain, stress, and linear momentum. The formulation is based on micromechanical modeling of a representative unit cell of a composite proposed by Nemat-Nasser & Hori (1993), Nemat-Nasser et. al. (1982) and Mura (1987) and is the 3-D generalization of the 1-D elastodynamic homogenization scheme presented by Nemat-Nasser & Srivastava (2011). We show that for 3-D periodic composites the overall compliance (stiffness) tensor is hermitian, irrespective of whether the corresponding unit cell is geometrically or materially symmetric.Overall mass density is shown to be a tensor and, like the overall compliance tensor, always hermitian. The average strain and linear momentum tensors are, however, coupled and the coupling tensors are shown to be each others' hermitian transpose. Finally we present a numerical example of a 3-D periodic composite composed of elastic cubes periodically distributed in an elastic matrix. The presented results corroborate the predictions of the theoretical treatment.

Ankit Srivastava; Sia Nemat-Nasser

2011-05-27T23:59:59.000Z

329

Quantitative Data Analysis Methods for 3D Microstructure  

E-Print Network [OSTI]

Quantitative Data Analysis Methods for 3D Microstructure Characterization of Solid Oxide Cells of electrochemical ceramic devices such as solid oxide fuel and electrolyser cells depends on the distribution key properties such as ion, electron and gas transport through percolating net- works and reaction

330

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

331

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

332

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

333

Electromagnetic Waves Propagation in 3D Plasma Configurations  

E-Print Network [OSTI]

Electromagnetic Waves Propagation in 3D Plasma Configurations Pavel Popovich, W. Anthony Cooper in a plasma strongly depends on the frequency, therefore the tools used for wave propagation studies are very that will allow for the calculation of the fields and energy deposition of a low-frequency wave propagating

334

STUDY AND DEVELOPMENT OF MECHANICAL 3D STANDARD PARTS LIBRARY  

E-Print Network [OSTI]

technology included variant design, tabular layouts of article characteristics and parametric cad system, the method and key technology to construct parametric mechanical 3D standard parts library was introduced. Engineer could build mechanical standard part through this system automatically and improve the

Wu Yang-dong; Xie Qing-sheng; Qi Guo-ning; Lu Yu-jun

335

Ris-R-1376(EN) 3D Background  

E-Print Network [OSTI]

, Roskilde, Denmark November 2002 #12;Abstract 3D rotor computations for the Greek Geovilogiki (GEO) 44 meter rotor equipped with 19 meters blades are performed. The lift and drag polars are extracted at five on the drag values are observed. ISBN 87-550-3141-2 ISBN 87-550-3142-0(internet) ISSN 0106-2840 Pitney Bowes

336

3D climate modeling of Earth-like extrasolar planets orbiting different types of host stars  

E-Print Network [OSTI]

The potential habitability of a terrestrial planet is usually defined by the possible existence of liquid water on its surface. The potential presence of liquid water depends on many factors such as, most importantly, surface temperatures. The properties of the planetary atmosphere and its interaction with the radiative energy provided by the planet's host star are thereby of decisive importance. In this study we investigate the influence of different main-sequence stars upon the climate of Earth-like extrasolar planets and their potential habitability by applying a 3D Earth climate model accounting for local and dynamical processes. The calculations have been performed for planets with Earth-like atmospheres at orbital distances where the total amount of energy received from the various host stars equals the solar constant. In contrast to previous 3D modeling studies, we include the effect of ozone radiative heating upon the vertical temperature structure of the atmospheres. The global orbital mean results o...

Godolt, M; Hamann-Reinus, A; Kitzmann, D; Kunze, M; Langematz, U; von Paris, P; Patzer, A B C; Rauer, H; Stracke, B

2015-01-01T23:59:59.000Z

337

3D Simulation of Convection and Spectral Line Formation in A-type Stars  

E-Print Network [OSTI]

We present first realistic numerical simulations of 3D radiative convection in the surface layers of main sequence A-type stars with Teff = 8000 K and 8500 K, log g = 4.4 and 4.0, recently performed with the CO5BOLD radiation hydrodynamics code. The resulting models are used to investigate the structure of the H+HeI and the HeII convection zones in comparison with the predictions of local and non-local convection theories, and to determine the amount of "overshoot" into the stable layers below the HeII convection zone. The simulations also predict how the topology of the photospheric granulation pattern changes from solar to A-type star convection. The influence of the photospheric temperature fluctuations and velocity fields on the shape of spectral lines is demonstrated by computing synthetic line profiles and line bisectors for some representative examples, allowing us to confront the 3D model results with observations.

M. Steffen; B. Freytag; H. -G. Ludwig

2005-09-15T23:59:59.000Z

338

Development of 3D Simulation Training and Testing for Home Energy...  

Energy Savers [EERE]

Development of 3D Simulation Training and Testing for Home Energy Score Assessor Candidates Development of 3D Simulation Training and Testing for Home Energy Score Assessor...

339

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

340

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

342

The Future of Manufacturing Takes Shape: 3D Printed Car on Display...  

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

Lead, Advanced Manufacturing Office Additive manufacturing - often referred to as 3D printing - is a revolutionary way to design and build products. Until now, 3D printing has...

343

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...

344

Design of 3D eye-safe middle range vibrometer  

SciTech Connect (OSTI)

Laser Doppler Vibrometer and Range Meter (3D-MRV) is designed for middle range distances [1–100 meters]. 3D-MRV combines more than one laser in one device for a simultaneous real time measuring the distance and movement of the targets. The first laser has a short pulse (t?30psec) and low energy (E?200nJ) for distance measurement and the second one is a CW (continuous wave) single frequency laser for the velocity measurement with output power (P?30mW). Both lasers perform on the eye-safe wavelength 1.5 ?m. 3D-MRV uses the same mono-static optical transmitting and receiving channel for both lasers including an output telescope and a scanning angular system. 3D-MRV has an optical polarization switch to combine linear polarized laser beams from two lasers into one optical channel. The laser beams from both lasers by turns illuminate the target and the scattered laser radiation is collected by the telescope on a photo detector. The electrical signal from photo detector is used for measuring the distance to the target and its movement. For distance measurement the time of flight method is employed. For targets movement the optical heterodyne method is employed. The received CW laser radiation is mixed on a photo detector with the frequency-shifted laser radiation that is taken from CW laser and passed through an acousto-optic cell. The electrical signal from a photo detector on the difference frequency and phase has information about movement of the scattered targets. 3D-MVR may be used for the real time picturing of vibration of the extensive targets like bridges or aircrafts.

Polulyakh, Valeriy [Advanced Data Security, 1933 O'Toole Way, San Jose, CA 95131 (United States); Poutivski, Iouri [Terimber Corporation, 2456 Homewood Drive, San Jose, CA 95128, USA and Facebook Inc, 1601 Willow Road, Menlo Park, CA 94025 (United States)

2014-05-27T23:59:59.000Z

345

A Platform Technology for Optimized Production of Islet-like Spheroids and Other 3D Cell Spheroids for Applications in Drug Discovery and Regenerative Medicine  

E-Print Network [OSTI]

There is an ever-growing need for a transition from the flat world of 2D monolayer cell culture to one of 3D organotypic tissue structures, bringing increased physiological relevance to early bench-top scientific discoveries. ...

Ramachandran, Karthik

2012-05-31T23:59:59.000Z

346

Parallel 3-D S{sub N} performance for DANTSYS/MPI on the Cray T3D  

SciTech Connect (OSTI)

A data parallel version of the 3-D transport solver in DANTSYS has been in use on the SIMD CM-200`s at LANL since 1994. This version typically obtains grind times of 150--200 nanoseconds on a 2,048 PE CM-200. The authors have now implemented a new message passing parallel version of DANTSYS, referred to as DANTSYS/MPI, on the 512 PE Cray T3D at Los Alamos. By taking advantage of the SPMD architecture of the Cray T3D, as well as its low latency communications network, they have managed to achieve grind times of less than 10 nanoseconds on real problems. DANTSYS/MPI is fully accelerated using DSA on both the inner and outer iterations. This paper describes the implementation of DANTSYS/MPI on the Cray T3D, and presents two simple performance models for the transport sweep which accurately predict the grind time as a function of the number of PE`s and problem size, or scalability.

Baker, R.S.; Alcouffe, R.E. [Los Alamos National Lab., NM (United States). Transport Methods Group

1997-05-01T23:59:59.000Z

347

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

348

3D optical sectioning with a new hyperspectral confocal fluorescence imaging system.  

SciTech Connect (OSTI)

A novel hyperspectral fluorescence microscope for high-resolution 3D optical sectioning of cells and other structures has been designed, constructed, and used to investigate a number of different problems. We have significantly extended new multivariate curve resolution (MCR) data analysis methods to deconvolve the hyperspectral image data and to rapidly extract quantitative 3D concentration distribution maps of all emitting species. The imaging system has many advantages over current confocal imaging systems including simultaneous monitoring of numerous highly overlapped fluorophores, immunity to autofluorescence or impurity fluorescence, enhanced sensitivity, and dramatically improved accuracy, reliability, and dynamic range. Efficient data compression in the spectral dimension has allowed personal computers to perform quantitative analysis of hyperspectral images of large size without loss of image quality. We have also developed and tested software to perform analysis of time resolved hyperspectral images using trilinear multivariate analysis methods. The new imaging system is an enabling technology for numerous applications including (1) 3D composition mapping analysis of multicomponent processes occurring during host-pathogen interactions, (2) monitoring microfluidic processes, (3) imaging of molecular motors and (4) understanding photosynthetic processes in wild type and mutant Synechocystis cyanobacteria.

Nieman, Linda T.; Sinclair, Michael B.; Davidson, George S.; Van Benthem, Mark Hilary; Haaland, David Michael; Timlin, Jerilyn Ann; Sasaki, Darryl Yoshio; Bachand, George David; Jones, Howland D. T.

2007-02-01T23:59:59.000Z

349

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

350

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

351

From 9-IM Topological Operators to Qualitative Spatial Relations using 3D Selective Nef Complexes and Logic Rules for bodies  

E-Print Network [OSTI]

From 9-IM Topological Operators to Qualitative Spatial Relations using 3D Selective Nef Complexes.benhmida, boochs}@geoinform.fh-mainz.de Keywords: Topological relations ; 9-IM ; Selective Nef Complex ; Ontology Complexes Nef Polyhedra structure generated from standard Polyhedron. The Selective Nef Complexes is a data

Boyer, Edmond

352

Statistical Physics of 3D Hairy Black Holes  

E-Print Network [OSTI]

We investigate the statistical behaviors of 3D hairy black holes in the presence of a scalar field. The present study is made in terms of two relevant parameters: rotation parameter a and B parameter related to the scalar field. More precisely, we compute various statistical quantities including the partition function for non-charged and charged black hole solutions. Using a partition function calculation, we show that the probability is independent of a and B parameters.

A. Belhaj; M. Chabab; H. EL Moumni; K. Masmar; M. B. Sedra

2014-12-29T23:59:59.000Z

353

3D, Flash, Induced Current Readout for Silicon Sensors  

SciTech Connect (OSTI)

A new method for silicon microstrip and pixel detector readout using (1) 65 nm-technology current amplifers which can, for the first time with silicon microstrop and pixel detectors, have response times far shorter than the charge collection time (2) 3D trench electrodes large enough to subtend a reasonable solid angle at most track locations and so have adequate sensitivity over a substantial volume of pixel, (3) induced signals in addition to, or in place of, collected charge

Parker, Sherwood I.

2014-06-07T23:59:59.000Z

354

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

355

Labeling 3D scenes for Personal Assistant Robots  

E-Print Network [OSTI]

Inexpensive RGB-D cameras that give an RGB image together with depth data have become widely available. We use this data to build 3D point clouds of a full scene. In this paper, we address the task of labeling objects in this 3D point cloud of a complete indoor scene such as an office. We propose a graphical model that captures various features and contextual relations, including the local visual appearance and shape cues, object co-occurrence relationships and geometric relationships. With a large number of object classes and relations, the model's parsimony becomes important and we address that by using multiple types of edge potentials. The model admits efficient approximate inference, and we train it using a maximum-margin learning approach. In our experiments over a total of 52 3D scenes of homes and offices (composed from about 550 views, having 2495 segments labeled with 27 object classes), we get a performance of 84.06% in labeling 17 object classes for offices, and 73.38% in labeling 17 object classe...

Koppula, Hema Swetha; Joachims, Thorsten; Saxena, Ashutosh

2011-01-01T23:59:59.000Z

356

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.

357

Rubrique : Tectonique Modlisation gomtrique 3D des granites Stphaniens du massif du Pelvoux (Alpes, France).  

E-Print Network [OSTI]

1 Rubrique : Tectonique Modélisation géométrique 3D des granites Stéphaniens du massif du Pelvoux (Alpes, France). 3D geometrical modelling of Stephanian granite from the Pelvoux massif (French Alps, granite, modélisation 3D, Carbonifère. Key words : Alps, Granite, 3D modelling, Carbonifere

Paris-Sud XI, Université de

358

Construction of suitable weak solutions for the 3D incompressible NSEs  

E-Print Network [OSTI]

Construction of suitable weak solutions for the 3D incompressible NSEs Jean-Luc Guermond Department-Luc Guermond Construction of suitable weak solutions for the 3D NSEs #12;Outline 1 BASIC FACTS ABOUT THE 3D NSE Jean-Luc Guermond Construction of suitable weak solutions for the 3D NSEs #12;Outline 1 BASIC FACTS

Guermond, Jean-Luc

359

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

360

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

362

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

363

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

364

ILLUSTRATING MATHEMATICS USING 3D PRINTERS OLIVER KNILL AND ELIZABETH SLAVKOVSKY  

E-Print Network [OSTI]

printing technology can help to visualize proofs in mathematics. This talk aims to illustrate how 3D Greece, models allows to make mathematics more accessible. The new 3D printing technology makes unmatched. 3D printers allow us to do that with relative little effort. 2. 3D printing The industry of rapid

Knill, Oliver

365

ILLUSTRATING MATHEMATICS USING 3D PRINTERS OLIVER KNILL AND ELIZABETH SLAVKOVSKY  

E-Print Network [OSTI]

3D printing can help to visualize concepts and mathematical proofs. As already known to educators in ancient Greece, models allow to bring mathematics closer to the public. The new 3D printing technology that with relatively little effort. 2. 3D printing The industry of rapid prototyping and 3D printing in particular em

Knill, Oliver

366

InvenTcl: A Fast Prototyping Environment for 3D Graphics and Multimedia Applications  

E-Print Network [OSTI]

InvenTcl: A Fast Prototyping Environment for 3D Graphics and Multimedia Applications Sidney Fels1- sion of Open Inventor, a 3D graphics toolkit. To create InvenTcl, the Open Inventor toolkit is \\wrapped, easy prototyping of 3D graphics and animation, low bandwidth communication of 3D scenes and animations

British Columbia, University of

367

A new graphical user interface for a 3D topological mesh modeler  

E-Print Network [OSTI]

of Silo, SLIDE, Google SketchUp, Cheetah 3D, k3dSurf, and Sculpture Generator. . . . . . . . . . . . . 13 7 Screenshots from Quicksilver pop-up CLI for OS/X and Launchy, a similar interface for Windows. . . . . . . . . . . . . . . . . . . . . . 14 8... of Silo, SLIDE, Google SketchUp, Cheetah 3D, k3dSurf, and Sculpture Generator. 5. Other Applications There are a wide variety of other 3D modeling applications that provide unique in- terfaces, such as Silo, SLIDE, Google Sketchup, Cheetah 3D, k3d...

Morris, David Victor

2008-10-10T23:59:59.000Z

368

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

369

Electronic properties of hexagonal tungsten monocarbide WC with 3d impurities from first-principles calculations  

E-Print Network [OSTI]

First principles FLAPW- GGA calculations have been performed to predict the structural, electronic, cohesive and magnetic properties for hexagonal WC doped with all 3d metals. The optimized lattice parameters, density of states, cohesive and formation energies have been obtained and analyzed for ternary solid solutions with nominal compositions W0.875M0.125C (where M = Sc, Ti, ..., Ni, Cu). In addition, the magnetic properties of these solid solutions have been examined, and magnetization has been established for W0.875Co0.125C.

D. V. Suetin; I. R. Shein; A. L. Ivanovskii

2009-03-31T23:59:59.000Z

370

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.

371

Uncertainty Analysis of RELAP5-3D  

SciTech Connect (OSTI)

As world-wide energy consumption continues to increase, so does the demand for the use of alternative energy sources, such as Nuclear Energy. Nuclear Power Plants currently supply over 370 gigawatts of electricity, and more than 60 new nuclear reactors have been commissioned by 15 different countries. The primary concern for Nuclear Power Plant operation and lisencing has been safety. The safety of the operation of Nuclear Power Plants is no simple matter- it involves the training of operators, design of the reactor, as well as equipment and design upgrades throughout the lifetime of the reactor, etc. To safely design, operate, and understand nuclear power plants, industry and government alike have relied upon the use of best-estimate simulation codes, which allow for an accurate model of any given plant to be created with well-defined margins of safety. The most widely used of these best-estimate simulation codes in the Nuclear Power industry is RELAP5-3D. Our project focused on improving the modeling capabilities of RELAP5-3D by developing uncertainty estimates for its calculations. This work involved analyzing high, medium, and low ranked phenomena from an INL PIRT on a small break Loss-Of-Coolant Accident as wall as an analysis of a large break Loss-Of- Coolant Accident. Statistical analyses were performed using correlation coefficients. To perform the studies, computer programs were written that modify a template RELAP5 input deck to produce one deck for each combination of key input parameters. Python scripting enabled the running of the generated input files with RELAP5-3D on INL’s massively parallel cluster system. Data from the studies was collected and analyzed with SAS. A summary of the results of our studies are presented.

Alexandra E Gertman; Dr. George L Mesina

2012-07-01T23:59:59.000Z

372

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

373

Mesh component design and software integration within SUMAA3d.  

SciTech Connect (OSTI)

The requirements of distributed-memory applications that use mesh management software tools are diverse, and building software that meets these requirements represents a considerable challenge. In this paper we discuss design requirements for a general, component approach for mesh management for use within the context of solving PDE applications on parallel computers. We describe recent efforts with the SUMAA3d package motivated by a component-based approach and show how these efforts have considerably improved both the flexibility and the usability of this software.

Freitag, L.

1999-01-13T23:59:59.000Z

374

Convergence of Ginzburg-Landau functionals in 3-d superconductivity  

E-Print Network [OSTI]

In this paper we consider the asymptotic behavior of the Ginzburg- Landau model for superconductivity in 3-d, in various energy regimes. We rigorously derive, through an analysis via {\\Gamma}-convergence, a reduced model for the vortex density, and we deduce a curvature equation for the vortex lines. In a companion paper, we describe further applications to superconductivity and superfluidity, such as general expressions for the first critical magnetic field H_{c1}, and the critical angular velocity of rotating Bose-Einstein condensates.

Sisto Baldo; Robert L. Jerrard; Giandomenico Orlandi; Mete Soner

2011-02-23T23:59:59.000Z

375

3D Printed Car at the International Manufacturing Technology Show |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataCombinedDepartment2015 Information Management25thDepartment of Energy 3D

376

SciTech Connect: "3d printing"  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systems controller systemsisSchedules SchedulesSciPy IPython3d

377

3D Printing of nanostructured catalytic materials | The Ames Laboratory  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICS H.CarbonMarch Value4 3.P D AT E3D Printing

378

A non-conforming 3D spherical harmonic transport solver  

SciTech Connect (OSTI)

A new 3D transport solver for the time-independent Boltzmann transport equation has been developed. This solver is based on the second-order even-parity form of the transport equation. The angular discretization is performed through the expansion of the angular neutron flux in spherical harmonics (PN method). The novelty of this solver is the use of non-conforming finite elements for the spatial discretization. Such elements lead to a discontinuous flux approximation. This interface continuity requirement relaxation property is shared with mixed-dual formulations such as the ones based on Raviart-Thomas finite elements. Encouraging numerical results are presented. (authors)

Van Criekingen, S. [Commissariat a l'Energie Atomique CEA-Saclay, DEN/DM2S/SERMA/LENR Bat 470, 91191 Gif-sur-Yvette, Cedex (France)

2006-07-01T23:59:59.000Z

379

Sandia National Laboratories: measure 3-D wind flow  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbine bladelifetime is the cumulative timemaximize energy3-D wind flow

380

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

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

Accuracy of volume measurement using 3D ultrasound and development of CT-3D US image fusion algorithm for prostate cancer radiotherapy  

SciTech Connect (OSTI)

Purpose: To evaluate the accuracy of measuring volumes using three-dimensional ultrasound (3D US), and to verify the feasibility of the replacement of CT-MR fusion images with CT-3D US in radiotherapy treatment planning. Methods: Phantoms, consisting of water, contrast agent, and agarose, were manufactured. The volume was measured using 3D US, CT, and MR devices. A CT-3D US and MR-3D US image fusion software was developed using the Insight Toolkit library in order to acquire three-dimensional fusion images. The quality of the image fusion was evaluated using metric value and fusion images. Results: Volume measurement, using 3D US, shows a 2.8 {+-} 1.5% error, 4.4 {+-} 3.0% error for CT, and 3.1 {+-} 2.0% error for MR. The results imply that volume measurement using the 3D US devices has a similar accuracy level to that of CT and MR. Three-dimensional image fusion of CT-3D US and MR-3D US was successfully performed using phantom images. Moreover, MR-3D US image fusion was performed using human bladder images. Conclusions: 3D US could be used in the volume measurement of human bladders and prostates. CT-3D US image fusion could be used in monitoring the target position in each fraction of external beam radiation therapy. Moreover, the feasibility of replacing the CT-MR image fusion to the CT-3D US in radiotherapy treatment planning was verified.

Baek, Jihye; Huh, Jangyoung; Hyun An, So; Oh, Yoonjin [Department of Medical Sciences, Ewha Womans University, Seoul 158-710 (Korea, Republic of); Kim, Myungsoo; Kim, DongYoung; Chung, Kwangzoo; Cho, Sungho; Lee, Rena [Department of Radiation Oncology, School of Medicine, Ewha Womans University, Seoul 158-710 (Korea, Republic of)

2013-02-15T23:59:59.000Z

382

Image Appraisal for 2D and 3D Electromagnetic Inversion  

SciTech Connect (OSTI)

Linearized methods are presented for appraising image resolution and parameter accuracy in images generated with two and three dimensional non-linear electromagnetic inversion schemes. When direct matrix inversion is employed, the model resolution and posterior model covariance matrices can be directly calculated. A method to examine how the horizontal and vertical resolution varies spatially within the electromagnetic property image is developed by examining the columns of the model resolution matrix. Plotting the square root of the diagonal of the model covariance matrix yields an estimate of how errors in the inversion process such as data noise and incorrect a priori assumptions about the imaged model map into parameter error. This type of image is shown to be useful in analyzing spatial variations in the image sensitivity to the data. A method is analyzed for statistically estimating the model covariance matrix when the conjugate gradient method is employed rather than a direct inversion technique (for example in 3D inversion). A method for calculating individual columns of the model resolution matrix using the conjugate gradient method is also developed. Examples of the image analysis techniques are provided on 2D and 3D synthetic cross well EM data sets, as well as a field data set collected at the Lost Hills Oil Field in Central California.

Alumbaugh, D.L.; Newman, G.A.

1999-01-28T23:59:59.000Z

383

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

2014-07-22T23:59:59.000Z

384

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

385

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

386

Chasing the Rose Run play with 3D seismic in New York  

SciTech Connect (OSTI)

Chasing the Cambro-Ordovician Rose Run play into New York from neighboring Ohio and Pennsylvania, Buffalo-based Ardent Resources Inc. has acquired the first 3D seismic data from the Empire State and will soon be drilling an exploratory well based on its interpretations. The Rose Run play is fraught with the types of challenges that increasingly typify US domestic production. Comprised of heterolithic dolostones and sandstones in a subcrop belt beneath a regional unconformity (Knox unconformity), reservoir heterogeneity is associated with truncation and topography beneath the unconformity, faults, fractures and depositional features. Together, the seismic and well data have demonstrated that the structural and stratigraphic complexity that characterizes the Rose Run play in Ohio are present in New York. Furthermore, the 1 Matusik well demonstrated that significant porosity is present below the Knox unconformity. Some wells that tested gas, but were not completed, in the Cambrian are potential recompletion targets. Given the structural complexity associated with the Rose Run play, strategically chosen 3D seismic surveys can be a cost-effective technology for confidently identifying drilling targets.

Hart, B. [New Mexico Bureau of Mines and Mineral Resources, Socorro, NM (United States); Copley, D.; Loewenstein, S. [Ardent Resources Inc., Buffalo, NY (United States)

1996-10-14T23:59:59.000Z

387

Extending ALE3D, an Arbitrarily Connected hexahedral 3D Code, to Very Large Problem Size (U)  

SciTech Connect (OSTI)

As the number of compute units increases on the ASC computers, the prospect of running previously unimaginably large problems is becoming a reality. In an arbitrarily connected 3D finite element code, like ALE3D, one must provide a unique identification number for every node, element, face, and edge. This is required for a number of reasons, including defining the global connectivity array required for domain decomposition, identifying appropriate communication patterns after domain decomposition, and determining the appropriate load locations for implicit solvers, for example. In most codes, the unique identification number is defined as a 32-bit integer. Thus the maximum value available is 231, or roughly 2.1 billion. For a 3D geometry consisting of arbitrarily connected hexahedral elements, there are approximately 3 faces for every element, and 3 edges for every node. Since the nodes and faces need id numbers, using 32-bit integers puts a hard limit on the number of elements in a problem at roughly 700 million. The first solution to this problem would be to replace 32-bit signed integers with 32-bit unsigned integers. This would increase the maximum size of a problem by a factor of 2. This provides some head room, but almost certainly not one that will last long. Another solution would be to replace all 32-bit int declarations with 64-bit long long declarations. (long is either a 32-bit or a 64-bit integer, depending on the OS). The problem with this approach is that there are only a few arrays that actually need to extended size, and thus this would increase the size of the problem unnecessarily. In a future computing environment where CPUs are abundant but memory relatively scarce, this is probably the wrong approach. Based on these considerations, we have chosen to replace only the global identifiers with the appropriate 64-bit integer. The problem with this approach is finding all the places where data that is specified as a 32-bit integer needs to be replaced with the 64-bit integer. that need to be replaced. In the rest of this paper we describe the techniques used to facilitate this transformation, issues raised, and issues still to be addressed. This poster will describe the reasons, methods, issues associated with extending the ALE3D code to run problems larger than 700 million elements.

Nichols, A L

2010-12-15T23:59:59.000Z

388

RELAP5-3D Restart and Backup Verification Testing  

SciTech Connect (OSTI)

Existing testing methodology for RELAP5-3D employs a set of test cases collected over two decades to test a variety of code features and run on a Linux or Windows platform. However, this set has numerous deficiencies in terms of code coverage, detail of comparison, running time, and testing fidelity of RELAP5-3D restart and backup capabilities. The test suite covers less than three quarters of the lines of code in the relap directory and just over half those in the environmental library. Even in terms of code features, many are not covered. Moreover, the test set runs many problems long past the point necessary to test the relevant features. It requires standard problems to run to completion. This is unnecessary for features can be tested in a short-running problem. For example, many trips and controls can be tested in the first few time steps, as can a number of fluid flow options. The testing system is also inaccurate. For the past decade, the diffem script has been the primary tool for checking that printouts from two different RELAP5-3D executables agree. This tool compares two output files to verify that all characters are the same except for those relating to date, time and a few other excluded items. The variable values printed on the output file are accurate to no more than eight decimal places. Therefore, calculations with errors in decimal places beyond those printed remain undetected. Finally, fidelity of restart is not tested except in the PVM sub-suite and backup is not specifically tested at all. When a restart is made from any midway point of the base-case transient, the restart must produce the same values. When a backup condition occurs, the code repeats advancements with the same time step. A perfect backup can be tested by forcing RELAP5 to perform a backup by falsely setting a backup condition flag at a user-specified-time. Comparison of the calculations of that run and those produced by the same input w/o the spurious condition should be identical. Backup testing is more difficult the other kinds of testing described above because it requires additional coding to implement. The testing system constructed and described in this document resolves all of these issues. A matrix of test features and short-running cases that exercise them is presented. A small information file that contains sufficient data to verify calculations to the last decimal place and bit is produced. This testing system is used to test base cases (called null testing) as well as restart and backup cases. The programming that implements these new capabilities is presented.

Dr. George L Mesina

2013-09-01T23:59:59.000Z

389

3D spectroscopy as a tool for investigation of the BLR of lensed QSOs  

E-Print Network [OSTI]

Selective amplification of the line and continuum source by microlensing in a lensed quasar can lead to changes of continuum spectral slopes and line shapes in the spectra of the quasar components. Comparing the spectra of different components of the lensed quasar and the spectra of an image observed in different epochs one can infer the presence of millilensing, microlensing and intrinsic variability. Especially, microlensing can be used for investigation of the unresolved broad line (BLR) and continuum emitting region structure in active galactic nuclei (AGN). Therefore the spectroscopic monitoring of selected lensed quasars with 3D spectroscopy open new possibility for investigation of the BLR structure in AGN. Here we discuss observational effects that may be present during the BLR microlensing in the spectra of lensed QSOs.

L. C. Popovic

2005-12-23T23:59:59.000Z

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

NISTIR 7232 CEMHYD3D: A Three-Dimensional Cement Hydration  

E-Print Network [OSTI]

NISTIR 7232 CEMHYD3D: A Three-Dimensional Cement Hydration and Microstructure Development Modeling Package. Version 3.0 Dale P. Bentz #12;NISTIR 7232 CEMHYD3D: A Three-Dimensional Cement Hydration

Bentz, Dale P.

392

3D microstructure modeling of compressed fiber-based Gerd Gaiselmanna,  

E-Print Network [OSTI]

consideration of compression conditions as found in fuel cells. Given the input of a 3D microstructure of some compression states, an optimal vector field is estimated by simulated annealing. The model is applied to 3D im

Schmidt, Volker

393

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

394

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

395

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

396

220 Index MTL ANNUAL RESEARCH REPORT 2014 3D printing 53  

E-Print Network [OSTI]

220 Index MTL ANNUAL RESEARCH REPORT 2014 Index Symbols 3D 33 3D printing 53 Integrated circuits 13 Ballistic velocity 28 Bandpass filter 112 Batteries 87 Berggren, Karl K. v, 110, 111, 149, 150, 151, 152

Reif, Rafael

397

Design and fabrication of a modular multi-material 3D printer  

E-Print Network [OSTI]

This thesis presents 3DP-0, a modular, multi-material 3D printer. Currently, 3D printers available on the market are typically expensive and difficult to develop. In addition, the simultaneous use of multiple materials in ...

Lan, Justin (Justin T.)

2013-01-01T23:59:59.000Z

398

E-Print Network 3.0 - aperture radar 3d Sample Search Results  

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

3d Search Powered by Explorit Topic List Advanced Search Sample search results for: aperture radar 3d Page: << < 1 2 3 4 5 > >> 1 CHAPTER 9CHAPTER 9CHAPTER 9:CHAPTER 9: Active and...

399

E-Print Network 3.0 - accuracy 3d quantum Sample Search Results  

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

3d quantum Search Powered by Explorit Topic List Advanced Search Sample search results for: accuracy 3d quantum Page: << < 1 2 3 4 5 > >> 1 Simulation of Ultra-Small Electronic...

400

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

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

"Flying Through the Known Universe" Screens at 3D Film Festival in L.A. "Flying Through the Known Universe" Screens at 3D Film Festival in L.A. September 19, 2012 perseus This...

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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...

402

Evaluation of PC-ISO for customized, 3D printed, gynecologic 192Ir HDR brachytherapy applicators  

E-Print Network [OSTI]

2015 253 Cunha et al. : PC-ISO for 3D printed brachytherapy1, 2015 Evaluation of PC-ISO for customized, 3D printed,attenuation properties of PC-ISO, a commercially available,

2015-01-01T23:59:59.000Z

403

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

404

asymmetric 3d in-vitro: Topics by E-print Network  

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

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...

405

anion-templated 3d heterobimetallic: Topics by E-print Network  

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

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...

406

A View of Manufacturing Through 3D Glasses | GE Global Research  

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

from machining and casting technologies to materials science, welding, and yes, 3D printing. In the past few years, 3D printing, or additive as we call it in our labs, has...

407

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

408

ModelCraft: Capturing Freehand Annotations and Edits on Physical 3D Models  

E-Print Network [OSTI]

of affordable new desktop fabrication techniques such as 3D printing and laser cutting, physical models are used cur- rent 3D printing technology. ACM CLASSIFICATION: H5.2 [Information interfaces and presentation

Keinan, Alon

409

THINKING LIKE ARCHIMEDES WITH A 3D PRINTER OLIVER KNILL AND ELIZABETH SLAVKOVSKY  

E-Print Network [OSTI]

, where 3D printing is becoming popular and affordable. 1. Introduction Archimedes, whose 2300th birthday education, 3D printing, Rapid prototyping, Greek mathematics. 1 #12;2 OLIVER KNILL AND ELIZABETH SLAVKOVSKY

Knill, Oliver

410

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

411

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

412

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

413

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

414

Tuneable quantum interference in a 3D integrated circuit  

E-Print Network [OSTI]

Integrated photonics promises solutions to questions of stability, complexity, and size in quantum optics. Advances in tunable and non-planar integrated platforms, such laser-inscribed photonics, continue to bring the realisation of quantum advantages in computation and metrology ever closer, perhaps most easily seen in multi-path interferometry. Here we demonstrate control of two-photon interference in a chip-scale 3D multi-path interferometer, showing a reduced periodicity and enhanced visibility compared to single photon measurements. Observed non-classical visibilities are widely tunable, and explained well by theoretical predictions based on classical measurements. With these predictions we extract a Fisher information approaching a theoretical maximum, demonstrating the capability of the device for quantum enhanced phase measurements.

Zachary Chaboyer; Thomas Meany; L. G. Helt; Michael J. Withford; M. J. Steel

2014-09-26T23:59:59.000Z

415

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

416

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

417

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

418

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.

419

Superconductivity from D3/D7: Holographic Pion Superfluid  

E-Print Network [OSTI]

We show that a D3/D7 system (at zero quark mass limit) at finite isospin chemical potential goes through a superconductor (superfluid) like phase transition. This is similar to a flavored superfluid phase studied in QCD literature, where mesonic operators condensate. We have studied the frequency dependent conductivity of the condensate and found a delta function pole in the zero frequency limit. This is an example of superconductivity in a string theory context. Consequently we have found a superfluid/supercurrent type solution and studied the associated phase diagram. The superconducting transition changes from second order to first order at a critical superfluid velocity. We have studied various properties of the superconducting system like superfluid density, energy gap, second sound etc. We investigate the possibility of the isospin chemical potential modifying the embedding of the flavor branes by checking whether the transverse scalars also condense at low temperature. This however does not seem to be the case.

Pallab Basu; Jianyang He; Anindya Mukherjee; Hsien-Hang Shieh

2008-10-22T23:59:59.000Z

420

3-D Simulations of Ergospheric Disk Driven Poynting Jets  

E-Print Network [OSTI]

This Letter reports on 3-dimensional simulations of Kerr black hole magnetospheres that obey the general relativistic equations of perfect magnetohydrodynamics (MHD). In particular, we study powerful Poynting flux dominated jets that are driven from dense gas in the equatorial plane in the ergosphere. The physics of which has been previously studied in the simplified limit of an ergopsheric disk. For high spin black holes, $a/M > 0.95$, the ergospheric disk is prominent in the 3-D simulations and is responsible for greatly enhanced Poynting flux emission. Any large scale poloidal magnetic flux that is trapped in the equatorial region leads to an enormous release of electromagnetic energy that dwarfs the jet energy produced by magnetic flux threading the event horizon. The implication is that magnetic flux threading the equatorial plane of the ergosphere is a likely prerequisite for the central engine of powerful FRII quasars.

Brian Punsly

2007-04-05T23:59:59.000Z

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

Modeling the GFR with RELAP5-3D  

SciTech Connect (OSTI)

Significant improvements have been made to the RELAP5-3D computer code for analysis of the Gas Fast Reactor (GFR). These improvements consisted of adding carbon dioxide as a working fluid, improving the turbine component, developing a compressor model, and adding the Gnielinski heat transfer correlation. The code improvements were validated, generally through comparisons with independent design calculations. A model of the power conversion unit of the GFR was developed. The model of the power conversion unit was coupled to a reactor model to develop a complete model of the GFR system. The RELAP5 model of the GFR was used to simulate two transients, one initiated by a reactor trip and the other initiated by a loss of load.

Cliff B. Davis; Theron D. Marshall; K. D. Weaver

2005-09-01T23:59:59.000Z

422

Topological order in an exactly solvable 3D spin model  

SciTech Connect (OSTI)

Research highlights: RHtriangle We study exactly solvable spin model with six-qubit nearest neighbor interactions on a 3D face centered cubic lattice. RHtriangle The ground space of the model exhibits topological quantum order. RHtriangle Elementary excitations can be geometrically described as the corners of rectangular-shaped membranes. RHtriangle The ground space can encode 4g qubits where g is the greatest common divisor of the lattice dimensions. RHtriangle Logical operators acting on the encoded qubits are described in terms of closed strings and closed membranes. - Abstract: We study a 3D generalization of the toric code model introduced recently by Chamon. This is an exactly solvable spin model with six-qubit nearest-neighbor interactions on an FCC lattice whose ground space exhibits topological quantum order. The elementary excitations of this model which we call monopoles can be geometrically described as the corners of rectangular-shaped membranes. We prove that the creation of an isolated monopole separated from other monopoles by a distance R requires an operator acting on {Omega}(R{sup 2}) qubits. Composite particles that consist of two monopoles (dipoles) and four monopoles (quadrupoles) can be described as end-points of strings. The peculiar feature of the model is that dipole-type strings are rigid, that is, such strings must be aligned with face-diagonals of the lattice. For periodic boundary conditions the ground space can encode 4g qubits where g is the greatest common divisor of the lattice dimensions. We describe a complete set of logical operators acting on the encoded qubits in terms of closed strings and closed membranes.

Bravyi, Sergey, E-mail: sbravyi@us.ibm.com [IBM Watson Research Center, Yorktown Heights, NY 10598 (United States); Leemhuis, Bernhard [Institute for Theoretical Physics, University of Amsterdam, Postbus 94485, 1090 GL Amsterdam (Netherlands); Terhal, Barbara M. [IBM Watson Research Center, Yorktown Heights, NY 10598 (United States)

2011-04-15T23:59:59.000Z

423

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

424

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

425

Direct-Write Assembly of 3D Hydrogel Scaffolds for Guided Cell Growth  

E-Print Network [OSTI]

reservoir-induced coagulation to enable 3D printing,[14] we report the creation of hydrogel inks that can

Lewis, Jennifer

426

EFFECTIVE STRUCTURAL HEALTH MONITORING WITH ADDITIVE MANUFACTURING  

E-Print Network [OSTI]

will be presented for components that can be processed by additive manufacturing (AM) or 3D printing. The origin structures. KEYWORDS : structural health monitoring methodology, 3D printing, additive manufacturing, fatigue, intelligent structure INTRODUCTION Additive manufacturing (AM), also known as 3D Printing or Rapid

Boyer, Edmond

427

Forensic Retrieval of Striations on Fired Bullets by using 3D Geometric Data  

E-Print Network [OSTI]

Forensic Retrieval of Striations on Fired Bullets by using 3D Geometric Data Atsuhiko Banno-based approaches, we can utilize 3D geometric data of tool marks that are free from lighting condition propose a two-stage comparison method focused on 3D geometric. At first, we have aligned global shapes

Tokyo, University of

428

Testprint gemaakt met een zelfgemaakte 3D printer (Reprap) in het "advanced prototyping for design" project  

E-Print Network [OSTI]

" project Lamp ontworpen en gemaakt tijdens het "lightstyle" project 3D print van een sieraad, gebaseerd op! #12;3D prints gemaakt in gips bij Bouwkunde CT scan van middeleeuws glas om een digitale reproductie, modeling, data massaging, 3D printing. · Objet trouvé Prototyping in verschillende domeinen en hoe domein

429

Hydraulic conductivity imaging from 3-D transient hydraulic tomography at several pumping/observation densities  

E-Print Network [OSTI]

Hydraulic conductivity imaging from 3-D transient hydraulic tomography at several pumping August 2013; accepted 7 September 2013; published 13 November 2013. [1] 3-D Hydraulic tomography (3-D HT (primarily hydraulic conductivity, K) is estimated by joint inversion of head change data from multiple

Barrash, Warren

430

Validation of 3D Radiative Transfer in Coastal-Ocean Water Systems as Modeled by DIRSIG  

E-Print Network [OSTI]

Validation of 3D Radiative Transfer in Coastal-Ocean Water Systems as Modeled by DIRSIG FOR IMAGING SCIENCE Title of Dissertation: Validation of 3D Radiative Transfer in Coastal-Ocean Water Systems. Signature Date 3 #12;Validation of 3D Radiative Transfer in Coastal-Ocean Water Systems as Modeled by DIRSIG

Salvaggio, Carl

431

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

432

Interweaving 3D Network with Double Helical Tubes Filled by 1D Coordination Polymer Chains  

E-Print Network [OSTI]

Interweaving 3D Network with Double Helical Tubes Filled by 1D Coordination Polymer Chains E Yang- tecture interpenetrated by three types of coordination polymer motifs. Two independent {[Cu2(mellitate)(4,4-bpy)(H2O)2]2- } 3D polymers incorporating helical substructures were interwoven into a 3D network

Gao, Song

433

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

434

SCALING-UP OF NEW GENERATION OF 3D FLEXIBLE ORGANIC SOLAR CELLS  

E-Print Network [OSTI]

SCALING-UP OF NEW GENERATION OF 3D FLEXIBLE ORGANIC SOLAR CELLS _______________ A Thesis Presented Generation of 3D Flexible Organic Solar Cell _____________________________________________ Samuel Kinde Engineering San Diego State University, 2012 Scaling-up of New Generation of 3D Flexible Organic Solar Cells

Kassegne, Samuel Kinde

435

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

436

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

437

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

438

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

439

Fast 3D Brain Segmentation Using Dual-Front Active Contours with Optional User-Interaction  

E-Print Network [OSTI]

Fast 3D Brain Segmentation Using Dual-Front Active Contours with Optional User-Interaction Hua Li1 attributes of 3D brain segmentation algorithms in- clude robustness, accuracy, computational efficiency result. We propose a novel 3D brain cortex segmentation procedure utilizing dual- front active contours

Cohen, Laurent

440

Construction of suitable weak solutions for the 3D incompressible NSEs  

E-Print Network [OSTI]

Construction of suitable weak solutions for the 3D incompressible NSEs Jean-Luc Guermond Department Univ. October 24, 2008 Jean-Luc Guermond Construction of suitable weak solutions for the 3D NSEs #12;Outline 1 BASIC FACTS ABOUT THE 3D NSE Jean-Luc Guermond Construction of suitable weak solutions for the 3

Guermond, Jean-Luc

Note: This page contains sample records for the topic "3d ice-lattice structures" 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 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

442

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

443

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

444

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.

445

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

446

3D Patterning of Micro and Nanostructures by Ion Controlled Etching (ICE) process  

E-Print Network [OSTI]

3D Patterning of Micro and Nanostructures by Ion Controlled Etching (ICE) process Technology offer Superior height-control by automated adaption of etch gas composition Y Unlimited 3D design possibilities as process features fully adaptable slopes Y Applications: lenses, micro-fluidics, biomimetic surfaces and 3D

Szmolyan, Peter

447

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

448

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

449

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

450

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

451

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

452

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

453

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

454

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

455

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

456

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

457

3D Tracking via Body Radio Reflections Fadel Adib Zachary Kabelac Dina Katabi Robert C. Miller  

E-Print Network [OSTI]

3D Tracking via Body Radio Reflections Fadel Adib Zachary Kabelac Dina Katabi Robert C. Miller Massachusetts Institute of Technology Abstract ­ This paper introduces WiTrack, a system that tracks the 3D the field of human-computer interaction by enabling 3D motion tracking without instrumenting the body

Polz, Martin

458

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

459

Topological Reconstruction of Complex 3D Buildings and Automatic Extraction of Levels of Detail  

E-Print Network [OSTI]

and outdoor topology of a detailed 3D building model from its geometry and to extract different levelsTopological Reconstruction of Complex 3D Buildings and Automatic Extraction of Levels of Detail A is needed for most of the applications using 3D building models after the architects design it. While

Boyer, Edmond

460

USING OF NON-EXPENSIVE 3D SCANNING INSTRUMENTS FOR CULTURAL HERITAGE DOCUMENTATION  

E-Print Network [OSTI]

of Monuments Research (Faculty of Nuclear Physics and Physical Engineering), new methods of 3D objects documentation are tested on school level. There are two types of 3D scanners under development: the first type of Monuments Research (Faculty of Nuclear Physics and Physical Engineering), new methods of 3D objects

Stockman, George

Note: This page contains sample records for the topic "3d ice-lattice structures" 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

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

462

Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III  

E-Print Network [OSTI]

Hot Melt Inks for 3D Printing Veronika Chovancova*, Alexandra Pekarovicova* and Paul D. Fleming III for 3D printing comprises different waxes, tackifier and plasticizer resins, rheology modifiers, and UV rheological (or flow) behavior. 1 3D printing, direct ink-jet printing, and related approaches such as hot

Fleming, Paul D. "Dan"

463

Tracking @stemxcomet: Teaching Programming to Blind Students via 3D Printing, Crisis Management, and Twitter  

E-Print Network [OSTI]

r Tracking @stemxcomet: Teaching Programming to Blind Students via 3D Printing, Crisis Management such as 3D printing offer an opportunity for students to write programs that produce tactile objects and suggests future directions for integrating data analysis and 3D printing into programming instruction

Kane, Shaun K.

464

MAE SEMINAR Recent advances in Additive Manufacturing/3D Printing Technologies, Material Science and  

E-Print Network [OSTI]

MAE SEMINAR Recent advances in Additive Manufacturing/3D Printing Technologies, Material Science Samueli School of Engineering University of California Irvine 3D printing or Additive Manufacturing in different shapes. 3D printing is also considered distinct from traditional machining techniques, which

Mease, Kenneth D.

465

Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices  

E-Print Network [OSTI]

Printed Optics: 3D Printing of Embedded Optical Elements for Interactive Devices Karl D.D. Willis1 d Figure 1: Custom optical elements are fabricated with 3D printing and embedded in interactive), and embedded optoelectronics (d). ABSTRACT We present an approach to 3D printing custom optical ele- ments

Poupyrev, Ivan

466

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

E-Print Network [OSTI]

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

467

Voxel-Based Assessment of Printability of 3D Alexandru Telea1  

E-Print Network [OSTI]

from a real-life application. 1 Introduction Recent advances in 3D printing technology have made of materials, higher printing speeds, and lower costs. High-quality, low-cost 3D printing is now available on a given printer. As 3D printing technology works in a raster fashion, we implement our proposed metrics

Telea, Alexandru C.

468

Computational Light Routing: 3D Printed Optical Fibers For Sensing and Display  

E-Print Network [OSTI]

Computational Light Routing: 3D Printed Optical Fibers For Sensing and Display THIAGO PEREIRA or restrict themselves to light dif- fusion in volumes. We use multi-material 3D printing to fabricate objects Additional Key Words and Phrases: 3D printing, optical fibers ACM Reference Format: Pereira, T, Rusinkiewicz

469

3D WEB GRAPHICS WITHOUT PLUGINS USING VML A Master Project  

E-Print Network [OSTI]

, allows viewing 3D graphics on the web without plugins. This style sheet saves the users time and energy3D WEB GRAPHICS WITHOUT PLUGINS USING VML A Master Project Presented to The faculty, a plugin is required to view 3D graphics in the most common web browsers, Internet Explorer and Netscape

Pollett, Chris

470

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

471

Analysis of the KROTOS KFC test by coupling X-Ray image analysis and MC3D calculations  

SciTech Connect (OSTI)

During a hypothetical severe accident sequence in a Pressurized Water Reactor (PWR), the hot molten materials (corium) issuing from the degraded reactor core may generate a steam explosion if they come in contact with water and may damage the structures and threaten the reactor integrity. The SERENA program is an international OECD project that aims at helping the understanding of this phenomenon also called Fuel Coolant Interaction (FCI) by providing data. CEA takes part in this program by performing tests in its KROTOS facility where steam explosions using prototypic corium can be triggered. Data about the different phases in the premixing are extracted from the KROTOS X-Ray radioscopy images by using KIWI software (KROTOS Image analysis of Water-corium Interaction) currently developed by CEA. The MC3D code, developed by IRSN, is a thermal-hydraulic multiphase code mainly dedicated to FCI studies. It is composed of two applications: premixing and explosion. An overall FCI calculation with MC3D requires a premixing calculation followed by an explosion calculation. The present paper proposes an alternative approach in which all the features of the premixing are extracted from the X-Ray pictures using the KIWI software and transferred to an MC3D dataset for a direct simulation of the explosion. The main hypothesis are discussed as well as the first explosion results obtained with MC3D for the KROTOS KFC test. These results are rather encouraging and are analyzed on the basis of comparisons with the experimental data. (authors)

Brayer, C.; Charton, A.; Grishchenko, D.; Fouquart, P.; Bullado, Y.; Compagnon, F.; Correggio, P.; Cassiaut-Louis, N.; Piluso, P. [Commissariat a l'Energie Atomique et Aux Energies Alternatives, CEA Cadarache, DEN, F-13108 Saint-Paul-Les-Durance (France)

2012-07-01T23:59:59.000Z

472

Integrating 3D seismic curvature and curvature gradient attributes for fracture characterization: Methodologies and interpretational implications  

SciTech Connect (OSTI)

In 3D seismic interpretation, curvature is a popular attribute that depicts the geometry of seismic reflectors and has been widely used to detect faults in the subsurface; however, it provides only part of the solutions to subsurface structure analysis. This study extends the curvature algorithm to a new curvature gradient algorithm, and integrates both algorithms for fracture detection using a 3D seismic test data set over Teapot Dome (Wyoming). In fractured reservoirs at Teapot Dome known to be formed by tectonic folding and faulting, curvature helps define the crestal portion of the reservoirs that is associated with strong seismic amplitude and high oil productivity. In contrast, curvature gradient helps better define the regional northwest-trending and the cross-regional northeast-trending lineaments that are associated with weak seismic amplitude and low oil productivity. In concert with previous reports from image logs, cores, and outcrops, the current study based on an integrated seismic curvature and curvature gradient analysis suggests that curvature might help define areas of enhanced potential to form tensile fractures, whereas curvature gradient might help define zones of enhanced potential to develop shear fractures. In certain fractured reservoirs such as at Teapot Dome where faulting and fault-related folding contribute dominantly to the formation and evolution of fractures, curvature and curvature gradient attributes can be potentially applied to differentiate fracture mode, to predict fracture intensity and orientation, to detect fracture volume and connectivity, and to model fracture networks.

Gao, Dengliang

2013-03-01T23:59:59.000Z

473

Min-wuk Lee 1 A fixedA fixed--point 3D graphics library withpoint 3D graphics library with  

E-Print Network [OSTI]

Outline Introduction Motivation MobileGL: Mobile 3D graphics library Energy-efficient CPU cache Energy-optimization for mobile 3D graphics Software system : High speed graphics library (MobileGL) Hardware system : Energy-cost target High speed graphics library Energy-efficient CPU cache system High quality target High speed

Yoo, Hoi-Jun

474

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

475

3D Model of the Tuscarora Geothermal Area  

DOE Data Explorer [Office of Scientific and Technical Information (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.

476

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"

477

ESS and Dissipation Range Dynamics of 3-D Turbulence  

E-Print Network [OSTI]

We carry out a self consistent calculation of the structure functions in the dissipation range using Navier Stokes equation. Combining these results with the known structures in the inertial range, we actually propose crossover functions for the structure functions that takes one smoothly from the inertial to the dissipation regime. In the process the success of the extended self similarity is explicitly demonstrated.

Anirban Sain; J. K. Bhattacharjee

1997-11-12T23:59:59.000Z

478

MPSalsa 3D Simulations of Chemically Reacting Flows  

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

Many important scientific and engineering applications require a detailed analysis of complex systems with coupled fluid flow, thermal energy transfer, mass transfer and nonequilibrium chemical reactions. Currently, computer simulations of these complex reacting flow problems are limited to idealized systems in one or two spatial dimensions when coupled with a detailed, fundamental chemistry model. The goal of our research is to develop, analyze and implement advanced MP numerical algorithms that will allow high resolution 3D simulations with an equal emphasis on fluid flow and chemical kinetics modeling. In our research, we focus on the development of new, fully coupled, implicit solution strategies that are based on robust MP iterative solution methods (copied from http://www.cs.sandia.gov/CRF/MPSalsa/). These simulations are needed for scientific and technical areas such as: combustion research for transportation, atmospheric chemistry modeling for pollution studies, chemically reacting flow models for analysis and control of manufacturing processes, surface catalytic reactors for methane to methanol conversion and chemical vapor deposition (CVD) process modeling for production of advanced semiconductor materials (http://www.cs.sandia.gov/CRF/MPSalsa/).

This project website provides six QuickTime videos of these simulations, along with a small image gallery and slideshow animations. A list of related publications and conference presentations is also made available.

479

The 3D Geometry of Dark Matter Halos  

E-Print Network [OSTI]

The thickness of the neutral hydrogen layer, coupled with the rotation curve, traces the outer dark matter potential. We estimate the amplitude of the flaring in spiral galaxies from a 3D model of the HI gas. Warps in particular are explicitly parametrized in the form of an harmonical density wave. Applying our method to the galaxy NGC 891, the only model that could fit the observations, and in particular the HI at large height above the plane, includes a strong warp with a line of node almost coinciding with the line of sight. This high-Z HI is not observed at the most extreme velocity channels, those corresponding to high rotational velocities. This is accounted for by the model, since orbits in the tilted planes are not circular, but elongated, with their minor axis in the galaxy plane. Their velocity on the major axis (i.e. at their maximal height above the plane) is then 30% less than in the plane. We finally connect the modelled vertical outer gaseous distribution to the dark matter through hydrodynamical and gravitational equations. Under the assumption of isotropy of the gaseous velocity dispersion, we conclude on a very flattened halo geometry for the galaxy NGC 891 ($q \\approx 0.2$), while a vertical velocity dispersion smaller that the radial one would lead to a less flattened Dark Matter Halo ($q \\approx 0.4-0.5$). Both results however suggests that dark matter is dissipative or has been strongly influenced by the gas dynamics.

J. -F. Becquaert; F. Combes

1997-04-10T23:59:59.000Z

480

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

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


481

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

482

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

483

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

484

Stochastic Acceleration in Turbulent Electric Fields Generated by 3-D Reconnection  

E-Print Network [OSTI]

Electron and proton acceleration in three-dimensional electric and magnetic fields is studied through test particle simulations. The fields are obtained by a three-dimensional magnetohydrodynamic simulation of magnetic reconnection in slab geometry. The nonlinear evolution of the system is characterized by the growth of many unstable modes and the initial current sheet is fragmented with formation of small scale structures. We inject at random points inside the evolving current sheet a Maxwellian distribution of particles. In relatively short time (less than a millisecond) the particles develop a power law tail. The acceleration is extremely efficient and the electrons absorb a large percentage of the available energy in a small fraction of the characteristic time of the MHD simulation, suggesting that resistive MHD codes, used extensively in the current literature, are unable to represent the full extent of particle acceleration in 3D reconnection.

Marco Onofri; Heinz Isliker; Loukas Vlahos

2006-04-10T23:59:59.000Z

485

3-D readout-electronics packaging for high-bandwidth massively paralleled imager  

DOE Patents [OSTI]

Dense, massively parallel signal processing electronics are co-packaged behind associated sensor pixels. Microchips containing a linear or bilinear arrangement of photo-sensors, together with associated complex electronics, are integrated into a simple 3-D structure (a "mirror cube"). An array of photo-sensitive cells are disposed on a stacked CMOS chip's surface at a 45.degree. angle from light reflecting mirror surfaces formed on a neighboring CMOS chip surface. Image processing electronics are held within the stacked CMOS chip layers. Electrical connections couple each of said stacked CMOS chip layers and a distribution grid, the connections for distributing power and signals to components associated with each stacked CSMO chip layer.

Kwiatkowski, Kris (Los Alamos, NM); Lyke, James (Albuquerque, NM)

2007-12-18T23:59:59.000Z

486

The JLAB 3D program at 12 GeV (TMDs + GPDs)  

SciTech Connect (OSTI)

The Jefferson Lab CEBAF accelerator is undergoing an upgrade that will increase the beam energy up to 12 GeV. The three experimental Halls operating in the 6-GeV era are upgrading their detectors to adapt their performances to the new available kinematics, and a new Hall (D) is being built. The investigation of the three-dimensional nucleon structure both in the coordinate and in the momentum space represents an essential part of the 12-GeV physics program, and several proposals aiming at the extraction of related observables have been already approved in Hall A, B and C. In this proceedings, the focus of the JLab 3D program will be described, and a selection of proposals will be discussed.

Pisano, Silvia [Lab. Naz. Frascati, Frascati, Italy

2015-01-01T23:59:59.000Z

487

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

488

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

489

3D Magnetotelluric Characterization Of The Geothermal Anomaly...  

Open Energy Info (EERE)

(AMT) survey was carried out. The AMT data was processed using a Wavelet Transform-based scheme. Dimensionality analysis indicates that the geoelectrical structure is...

490

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This project aims to develop improved geophysical imaging method for characterizing subsurface structure, identify fluid locations, and characterize fractures.

491

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

492

Simultaneous submicrometric 3D imaging of the micro-vascular network and the neuronal system in a mouse spinal cord  

E-Print Network [OSTI]

Defaults in vascular (VN) and neuronal networks of spinal cord are responsible for serious neurodegenerative pathologies. Because of inadequate investigation tools, the lacking knowledge of the complete fine structure of VN and neuronal systems is a crucial problem. Conventional 2D imaging yields incomplete spatial coverage leading to possible data misinterpretation, whereas standard 3D computed tomography imaging achieves insufficient resolution and contrast. We show that X-ray high-resolution phase-contrast tomography allows the simultaneous visualization of three-dimensional VN and neuronal systems of mouse spinal cord at scales spanning from millimeters to hundreds of nanometers, with neither contrast agent nor a destructive sample-preparation. We image both the 3D distribution of micro-capillary network and the micrometric nerve fibers, axon-bundles and neuron soma. Our approach is a crucial tool for pre-clinical investigation of neurodegenerative pathologies and spinal-cord-injuries. In particular, it s...

Fratini, Michela; Campi, Gaetano; Brun, Francesco; Tromba, Giuliana; Modregger, Peter; Bucci, Domenico; Battaglia, Giuseppe; Spadon, Raffaele; Mastrogiacomo, Maddalena; Requardt, Herwig; Giove, Federico; Bravin, Alberto; Cedola, Alessia

2014-01-01T23:59:59.000Z

493

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

494

Training toward Advanced 3D Seismic Methods for CO2 Monitoring, Verification, and Accounting  

SciTech Connect (OSTI)

The objective of our work is graduate and undergraduate student training related to improved 3D seismic technology that addresses key challenges related to monitoring movement and containment of CO{sub 2}, specifically better quantification and sensitivity for mapping of caprock integrity, fractures, and other potential leakage pathways. We utilize data and results developed through previous DOE-funded CO{sub 2} characterization project (DE-FG26-06NT42734) at the Dickman Field of Ness County, KS. Dickman is a type locality for the geology that will be encountered for CO{sub 2} sequestration projects from northern Oklahoma across the U.S. midcontinent to Indiana and Illinois. Since its discovery in 1962, the Dickman Field has produced about 1.7 million barrels of oil from porous Mississippian carbonates with a small structural closure at about 4400 ft drilling depth. Project data includes 3.3 square miles of 3D seismic data, 142 wells, with log, some core, and oil/water production data available. Only two wells penetrate the deep saline aquifer. In a previous DOE-funded project, geological and seismic data were integrated to create a geological property model and a flow simulation grid. We believe that sequestration of CO{sub 2} will largely occur in areas of relatively flat geology and simple near surface, similar to Dickman. The challenge is not complex geology, but development of improved, lower-cost methods for detecting natural fractures and subtle faults. Our project used numerical simulation to test methods of gathering multicomponent, full azimuth data ideal for this purpose. Our specific objectives were to apply advanced seismic methods to aide in quantifying reservoir properties and lateral continuity of CO{sub 2} sequestration targets. The purpose of the current project is graduate and undergraduate student training related to improved 3D seismic technology that addresses key challenges related to monitoring movement and containment of CO{sub 2}, specifically better quantification and sensitivity for mapping of caprock integrity, fractures, and other potential leakage pathways. Specifically, our focus is fundamental research on (1) innovative narrow-band seismic data decomposition and interpretation, and (2) numerical simulation of advanced seismic data (multi-component, high density, full azimuth data) ideal for mapping of cap rock integrity and potential leakage pathways.

Christopher Liner

2012-05-31T23:59:59.000Z

495

Krylov Techniques for 3D Problems in Transport Theory  

SciTech Connect (OSTI)

When solving integral-differential equations by means of numerical methods one has to deal with large systems of linear equations, such as happens in transport theory [10]. Many iterative techniques are now used in Transport Theory in order to solve problems of 2D and 3D dimensions. In this paper, we choose two problems to solve the following transport equation, [Equation] where x: represents the spatial variable, {mu}: the cosine of the angle, {psi}: the angular flux, h(x, {mu}): is the collision frequency, k(x, {mu}, {mu}'): the scattering kernel, q(x, {mu}): the source. The aim of this work is the straightforward application of the Krylov spaces technique [2] to the governing equation or to its discretizations derived of the discrete ordinates method (choosing a finite number of directions and then approximating the integral term by means of a proper sum). The equation (1) can be written in functional form as [Equation] with {psi} in the Hilbert space L{sup 2} ([0,a] x [-1,1])., and q is the source function. The operator derived from a discrete ordinates scheme that approximates the operator [Equation] generates the following subspace [Equation] i.e. the subspace generated by the iterations of order 0, 1, 2,..., m-1 of the source function q. Two methods are specially outstanding, the Lanczos method to solve the problem given by equation (2) with certain boundary conditions, and the conjugate gradient method to solve the same problem with identical boundary conditions. We discuss and accelerate the basic iterative method [8]. An important conclusion is the generation of these methods to solve linear systems in Hilbert spaces, if verify the convergence conditions, which are outlined in this work. The first problem is a cubic domain with two regions, one with a source near the vertex at the origin and the shield region. In this case, the Cartesian planes (specifically 0

Ruben Panta Pazos [Department of Mathematics, UNISC - Universidade de Santa Cruz do Sul Av. Independencia, 2293 Bairro Universitario (Brazil)

2006-07-01T23:59:59.000Z

496

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

497

3D head anthropometric analysis Reyes Enciso*ab  

E-Print Network [OSTI]

a current three-dimensional image-based face modeling technique using a plaster head model. We will also. In this paper we acquired and validated 3-dimensional images of a plaster head using structured-light image

Shahabi, Cyrus

498

Modular robots for making and climbing 3-D trusses  

E-Print Network [OSTI]

A truss climbing robot has been extensively investigated because of its wide range of promising applications such as construction and inspection of truss structures. It is designed to have degrees of freedom to move in ...

Yoon, Yeoreum

2006-01-01T23:59:59.000Z

499

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

500

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