National Library of Energy BETA

Sample records for 3d nanocomposites experimental

  1. 3-D Structural Modeling of Humic Acids through Experimental

    E-Print Network [OSTI]

    Goddard III, William A.

    for a "typical" soilHA.SchlutenandSchnitzer(11)havecombinedelemental analysis, 13C NMR, pyrolysis mass Structure Elucidation and Atomistic Simulations. 1. Chelsea Soil Humic Acid M A M A D O U S . D I A L L O to the CASE program SIGNATURE to generate all 3-D structural models for Chelsea soil humic acid (HA

  2. EXPERIMENTAL EVALUATION OF SIMULTANEOUS 3D LOCALIZATION OF SENSOR NODES AND TRACKING MOVING TARGETS

    E-Print Network [OSTI]

    Instituto de Sistemas e Robotica

    EXPERIMENTAL EVALUATION OF SIMULTANEOUS 3D LOCALIZATION OF SENSOR NODES AND TRACKING MOVING TARGETS sensor/target localization) which rely on infrared (IR), radio frequency/received signal strength (RF of a simultaneous localization and track- ing (SLAT) algorithm for sensor networks, whose aim is to determine

  3. The matching of 3D Rolie-Poly viscoelastic numerical simulations with experimental polymer melt flow

    E-Print Network [OSTI]

    Jimack, Peter

    Kingdom J. Embery and D. Auhl IRC in Polymer Science and Technology, Department of Physics and AstronomyThe matching of 3D Rolie-Poly viscoelastic numerical simulations with experimental polymer melt of commercial viscoelastic polymer melts. Numerical simulation techniques have steadily advanced over the last

  4. Experimental investigation of 2D and 3D internal wave fields

    E-Print Network [OSTI]

    Saidi, Sasan John

    2011-01-01

    The generation of 2D and 3D internal wave fields is extensively studied via planarand stereo- Particle Image Velocimetry (PIV) flow field measurement techniques. A benchmark was provided by an experiment involving tidal ...

  5. 3D Seismic Experimentation and Advanced Processing/Inversion Development for Investigations of the Shallow Subsurface

    SciTech Connect (OSTI)

    Levander, Alan Richard; Zelt, Colin A.

    2015-03-17

    The work plan for this project was to develop and apply advanced seismic reflection and wide-angle processing and inversion techniques to high resolution seismic data for the shallow subsurface to seismically characterize the shallow subsurface at hazardous waste sites as an aid to containment and cleanup activities. We proposed to continue work on seismic data that we had already acquired under a previous DoE grant, as well as to acquire additional new datasets for analysis. The project successfully developed and/or implemented the use of 3D reflection seismology algorithms, waveform tomography and finite-frequency tomography using compressional and shear waves for high resolution characterization of the shallow subsurface at two waste sites. These two sites have markedly different near-surface structures, groundwater flow patterns, and hazardous waste problems. This is documented in the list of refereed documents, conference proceedings, and Rice graduate theses, listed below.

  6. The 3D structure of the hadrons: recents results and experimental program at Jefferson Lab

    SciTech Connect (OSTI)

    Munoz Camacho, Carlos

    2014-04-01

    The understanding of Quantum Chromodynamics (QCD) at large distances still remains one of the main outstanding problems of nuclear physics. Studying the internal structure of hadrons provides a way to probe QCD in the non-perturbative domain and can help us unravel the internal structure of the most elementary blocks of matter. Jefferson Lab (JLab) has already delivered results on how elementary quarks and gluons create nucleon structure and properties. The upgrade of JLab to 12 GeV will allow the full exploration of the valence-quark structure of nucleons and the extraction of real threedimensional pictures. I will present recent results and review the future experimental program at JLab.

  7. Part removal of 3D printed parts

    E-Print Network [OSTI]

    Peña Doll, Mateo

    2014-01-01

    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 ...

  8. 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/ 

  9. 3D Systems Packaging Research Center DELIVERING BREAKTHROUGH IDEAS TO INDUSTRY

    E-Print Network [OSTI]

    Li, Mo

    3D Systems Packaging Research Center DELIVERING BREAKTHROUGH IDEAS TO INDUSTRY 3D Systems Packaging-costdecouplingcapacitorsonsilicon,glassandorganic packages ·Novel nanocomposite dielectrics for low TCC, low loss and highpermittivity ·Demonstration of size #12;3D Systems Packaging Research Center 813 Ferst Drive, NW, Atlanta, GA 30332 · 404.894.9097 fax

  10. 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 

  11. Heat Transfer Simulation of Reactor Cavity Cooling System Experimental Facility using RELAP5-3D and Generation of View Factors using MCNP 

    E-Print Network [OSTI]

    Wu, Huali

    2013-08-08

    As one of the most attractive reactor types, The High Temperature Gas-cooled Reactor (HTGR) is designed to be passively safe with the incorporation of Reactor Cavity Cooling System (RCCS). In this paper, a RELAP5-3D simulation model is set up based...

  12. 3D Printing Electronics

    E-Print Network [OSTI]

    Stryk, Oskar von

    the top six were granted further funding by DARPA and were also given an ATLAS robot to continue is the connectivity. Here in the US everyone assumes high ... Boeing Utilizing Sigma Labs (SGLB) "PrintRite3D" System for 3D Printing · -- B6 Sigma Labs (ticker SGLB) is not the same company as Sigma Technologies

  13. 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...

  14. Dynamic pulse buckling of cylindrical shells under axial impact: A comparison of 2D and 3D finite element calculations with experimental data

    SciTech Connect (OSTI)

    Hoffman, E.L.; Ammerman, D.J.

    1995-04-01

    A series of tests investigating dynamic pulse buckling of a cylindrical shell under axial impact is compared to several 2D and 3D finite element simulations of the event. The purpose of the work is to investigate the performance of various analysis codes and element types on a problem which is applicable to radioactive material transport packages, and ultimately to develop a benchmark problem to qualify finite element analysis codes for the transport package design industry. Four axial impact tests were performed on 4 in-diameter, 8 in-long, 304 L stainless steel cylinders with a 3/16 in wall thickness. The cylinders were struck by a 597 lb mass with an impact velocity ranging from 42.2 to 45.1 ft/sec. During the impact event, a buckle formed at each end of the cylinder, and one of the two buckles became unstable and collapsed. The instability occurred at the top of the cylinder in three tests and at the bottom in one test. Numerical simulations of the test were performed using the following codes and element types: PRONTO2D with axisymmetric four-node quadrilaterals; PRONTO3D with both four-node shells and eight-node hexahedrons; and ABAQUS/Explicit with axisymmetric two-node shells and four-node quadrilaterals, and 3D four-node shells and eight-node hexahedrons. All of the calculations are compared to the tests with respect to deformed shape and impact load history. As in the tests, the location of the instability is not consistent in all of the calculations. However, the calculations show good agreement with impact load measurements with the exception of an initial load spike which is proven to be the dynamic response of the load cell to the impact. Finally, the PRONIT02D calculation is compared to the tests with respect to strain and acceleration histories. Accelerometer data exhibited good qualitative agreement with the calculations. The strain comparisons show that measurements are very sensitive to gage placement.

  15. Characterizing tensile loading responses of 3D printed samples

    E-Print Network [OSTI]

    Haid, Christopher M

    2014-01-01

    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 ...

  16. Polyolefin nanocomposites

    DOE Patents [OSTI]

    Chaiko, David J.

    2007-01-02

    The present invention relates to methods for the preparation of clay/polymer nanocomposites. The methods include combining an organophilic clay and a polymer to form a nanocomposite, wherein the organophilic clay and the polymer each have a peak recrystallization temperature, and wherein the organophilic clay peak recrystallization temperature sufficiently matches the polymer peak recrystallization temperature such that the nanocomposite formed has less permeability to a gas than the polymer. Such nanocomposites exhibit 2, 5, 10, or even 100 fold or greater reductions in permeability to, e.g., oxygen, carbon dioxide, or both compared to the polymer. The invention also provides a method of preparing a nanocomposite that includes combining an amorphous organophilic clay and an amorphous polymer, each having a glass transition temperature, wherein the organophilic clay glass transition temperature sufficiently matches the polymer glass transition temperature such that the nanocomposite formed has less permeability to a gas than the polymer.

  17. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFESOpportunitiesNERSC GettingGraphene's 3D Counterpart Print ALS

  18. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low LETUsefulJorgeAtlDayGraphene's 3D Counterpart Print

  19. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low LETUsefulJorgeAtlDayGraphene's 3D Counterpart

  20. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low LETUsefulJorgeAtlDayGraphene's 3D

  1. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low LETUsefulJorgeAtlDayGraphene's 3DGraphene's 3D

  2. Idea Generation 3D printing

    E-Print Network [OSTI]

    Stylianou, Yannis

    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

  3. Taming Supersymmetric Defects in 3d-3d Correspondence

    E-Print Network [OSTI]

    Gang, Dongmin; Romo, Mauricio; Yamazaki, Masahito

    2015-01-01

    We study knots in 3d Chern-Simons theory with complex gauge group $SL(N,\\mathbb{C})$, in the context of its relation with 3d $\\mathcal{N}=2$ theory (the so-called 3d-3d correspondence). The defect has either co-dimension 2 or co-dimension 4 inside the 6d $(2,0)$ theory, which is compactified on a 3-manifold $\\hat{M}$. We identify such defects in various corners of the 3d-3d correspondence, namely in 3d $SL(N,\\mathbb{C})$ Chern-Simons theory, in 3d $\\mathcal{N}=2$ theory, in 5d $\\mathcal{N}=2$ super Yang-Mills theory, and in the M-theory holographic dual. We can make quantitative checks of the 3d-3d correspondence by computing partition functions at each of these theories. This Letter is a companion to a longer paper, which contains more details and more results.

  4. 3-D hydro + cascade model at RHIC

    E-Print Network [OSTI]

    Chiho Nonaka; Steffen A. Bass

    2005-11-07

    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.

  5. 3D Computer Vision and Video Computing 3D Vision3D Vision

    E-Print Network [OSTI]

    Zhu, Zhigang

    and right projections of P, respectively. #12;6 3D Computer Vision and Video Computing A Simple Stereo length Optical Center Or pr(xr,yr) RIGHT CAMERA #12;7 3D Computer Vision and Video Computing Disparity vs = Baseline f = focal length Optical Center Or pr(xr,yr) RIGHT CAMERA 3D Computer Vision and Video Computing

  6. 3D World Building System

    ScienceCinema (OSTI)

    None

    2014-02-26

    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.

  7. 3D Tissue Scaffolds BIOMATERIALS

    E-Print Network [OSTI]

    3D Tissue Scaffolds BIOMATERIALS Our goal is to develop measurement tools and reference materials006497-01) in collaboration with the New Jersey Center for Biomaterials (RESBIO P41 EB 001046). · We have-material interactions have focused on planar (2D) surfaces or films. However, biomaterials are commonly used in 3D

  8. 3D Fingerprint Phantoms Sunpreet S. Arora, Kai Cao and Anil K. Jain

    E-Print Network [OSTI]

    ) printing the 3D fingerprint phantoms using a commodity 3D printer. Preliminary experimental results show3D Fingerprint Phantoms Sunpreet S. Arora, Kai Cao and Anil K. Jain Department of Computer Science, we propose creating 3D fin- gerprint phantoms (phantoms or imaging phantoms are specially designed

  9. GRAPHICS PROGRAMMING SECTION D -JAVA 3D

    E-Print Network [OSTI]

    Hill, Gary

    GRAPHICS PROGRAMMING SECTION D - JAVA 3D 1SECTION D - GRAPHICS 3-D........................................................................................... 2 30 Graphics 3D: Introduction to Java 3D........................................................................................ 78 ©Gary Hill September 2004 Java 3-D 1 of 13 #12;GRAPHICS PROGRAMMING SECTION D - GRAPHICS 3-D 30

  10. Imaging atoms in 3-D

    ScienceCinema (OSTI)

    Ercius, Peter

    2014-06-27

    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

  11. Imaging atoms in 3-D

    SciTech Connect (OSTI)

    Ercius, Peter

    2013-10-31

    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

  12. 3D Structure and Nuclear Targets

    E-Print Network [OSTI]

    Dupré, R

    2015-01-01

    Recent experimental and theoretical ideas are laying the ground for a new era in the knowledge of the parton structure of nuclei. We report on two promising directions beyond inclusive deep inelastic scattering experiments, aimed at, among other goals, unveiling the three dimensional structure of the bound nucleon. The 3D structure in coordinate space can be accessed through deep exclusive processes, whose non-perturbative content is parametrized in terms of generalized parton distributions. In this way the distribution of partons in the transverse plane will be obtained, providing a pictorial view of the realization of the European Muon Collaboration effect. In particular, we show how, through the generalized parton distribution framework, non nucleonic degrees of freedom in nuclei can be unveiled. Analogously, the momentum space 3D structure can be accessed by studying transverse momentum dependent parton distributions in semi-inclusive deep inelastic scattering processes. The status of measurements is also...

  13. Idea Generation 3D printing

    E-Print Network [OSTI]

    Papadopouli, Maria

    is a national research centre focused on smart electrical grid and energy storage technology, which Centre micro and nanoscale 15 Taking 3D printing to the nanoscale 18 Fighting cancer with a "lab of wireless speeds 24 Winners of erc grants electrical transportation 25 The power of electrical roads 27

  14. 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

  15. SciTech Connect: "3d printing"

    Office of Scientific and Technical Information (OSTI)

    3d printing" Find + Advanced Search Term Search Semantic Search Advanced Search All Fields: "3d printing" Semantic Semantic Term Title: Full Text: Bibliographic Data: Creator ...

  16. Controlling Tokamak Geometry with 3D Magnetic Perturbations

    E-Print Network [OSTI]

    Bird, Thomas M

    2014-01-01

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

  17. Thermal Coupling in TSV-Based 3-D Integrated Circuits Ioannis Savidis1

    E-Print Network [OSTI]

    Friedman, Eby G.

    Thermal Coupling in TSV-Based 3-D Integrated Circuits Ioannis Savidis1 and Eby G. Friedman2 1 examining thermal propagation within a 3-D integrated stack has been designed, fabricated, and tested. Design insight into thermal coupling in 3-D ICs through experimental means is provided, and suggestions

  18. 3D interactive pictorial maps 

    E-Print Network [OSTI]

    Naz, Asma

    2005-02-17

    will be used for data representation. I created the map of the United States of America and Europe. I displayed and compared the population density, and political stature of the states or countries by changing the color or heights of the 3D models of different... of height of models. The shades or patterns that represent each data must be clearly identifiable, not only on the legend, where the category boxes are ordered, but also on the map, where there is no predetermined order. If the shades are too similar...

  19. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril351 Substation Demolition --3D Printed3DJohn

  20. 3D Structure and Nuclear Targets

    E-Print Network [OSTI]

    R. Dupré; S. Scopetta

    2015-10-03

    Recent experimental and theoretical ideas are laying the ground for a new era in the knowledge of the parton structure of nuclei. We report on two promising directions beyond inclusive deep inelastic scattering experiments, aimed at, among other goals, unveiling the three dimensional structure of the bound nucleon. The 3D structure in coordinate space can be accessed through deep exclusive processes, whose non-perturbative content is parametrized in terms of generalized parton distributions. In this way the distribution of partons in the transverse plane will be obtained, providing a pictorial view of the realization of the European Muon Collaboration effect. In particular, we show how, through the generalized parton distribution framework, non nucleonic degrees of freedom in nuclei can be unveiled. Analogously, the momentum space 3D structure can be accessed by studying transverse momentum dependent parton distributions in semi-inclusive deep inelastic scattering processes. The status of measurements is also summarized, in particular novel coincidence measurements at high luminosity facilities, such as Jefferson Laboratory. Finally the prospects for the next years at future facilities, such as the 12~GeV Jefferson Laboratory and the Electron Ion Collider, are presented.

  1. The Makerbot: Desktop 3D printing

    E-Print Network [OSTI]

    Roughan, Matthew

    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

  2. A view-sequential 3D display

    E-Print Network [OSTI]

    Cossairt, Oliver S. (Oliver Strider), 1978-

    2003-01-01

    This thesis outlines the various techniques for creating electronic 3D displays and analyzes their commercial potential. The thesis argues for the use of view-sequential techniques in the design of 3D displays based on ...

  3. 3D Printing Prof. Hank Dietz

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    #12;Our 3D Printer It's a MakerGear M2, cost about $1700 We extrude 1.75mm diameter PLA filament3D Printing Prof. Hank Dietz TCMS, March 14, 2014 University of Kentucky Electrical & Computer/Craft: paper moves in Y, knife in X EDM/Laser: X/Y bed, vaporizes material #12;Subtractive 3D CNC: Computer

  4. RELAP5-3D User Problems

    SciTech Connect (OSTI)

    Riemke, Richard Allan

    2002-09-01

    The Reactor Excursion and Leak Analysis Program with 3D capability1 (RELAP5-3D) is a reactor system analysis code that has been developed at the Idaho National Engineering and Environmental Laboratory (INEEL) for the U. S. Department of Energy (DOE). The 3D capability in RELAP5-3D includes 3D hydrodynamics2 and 3D neutron kinetics3,4. Assessment, verification, and validation of the 3D capability in RELAP5-3D is discussed in the literature5,6,7,8,9,10. Additional assessment, verification, and validation of the 3D capability of RELAP5-3D will be presented in other papers in this users seminar. As with any software, user problems occur. User problems usually fall into the categories of input processing failure, code execution failure, restart/renodalization failure, unphysical result, and installation. This presentation will discuss some of the more generic user problems that have been reported on RELAP5-3D as well as their resolution.

  5. Printing 3D Models to the Genisys Xs 3D Printer By Sotiri Koyonos

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    Printing 3D Models to the Genisys Xs 3D Printer By Sotiri Koyonos VMIL Consultant 28 February 2003's Genisys Xs 3D printer. This document assumes that you have created a stereo lithography file (*.stl Abstract This document outlines the process for manufacturing three dimensional (3D) models on the ITG

  6. Nanocomposite scintillator and detector

    DOE Patents [OSTI]

    Cooke, D. Wayne (Santa Fe, NM); McKigney, Edward A. (Los Alamos, NM); Muenchausen, Ross E. (Los Alamos, NM); Bennett, Bryan L. (Los Alamos, NM); Ott, Kevin C. (Los Alamos, NM); Del Sesto, Rico E. (Los Alamos, NM); McCleskey, T. Mark (Los Alamos, NM); Burrell, Anthony K. (Los Alamos, NM)

    2009-06-16

    A nanocomposite scintillator is prepared using fast, bright, rare-earth doped nanopowder phosphor and a binder that is transparent to the emission of the phosphor.

  7. 3D Site Response using NLSSI

    Broader source: Energy.gov [DOE]

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

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

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

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

  9. 3-D seismology in the Arabian Gulf

    SciTech Connect (OSTI)

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

    1995-08-01

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

  10. 3, 35433588, 2003 3-D air pollution

    E-Print Network [OSTI]

    Boyer, Edmond

    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

  11. Fabrication of 3D Silicon Sensors

    SciTech Connect (OSTI)

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

    2012-06-06

    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.

  12. Supplementary Material The pumping lid: Investigating multi-material 3D printing for equipment-free, programmable

    E-Print Network [OSTI]

    Ismagilov, Rustem F.

    Supplementary Material The pumping lid: Investigating multi-material 3D printing for equipment. #12;Experimental section 3D printing Lids and cups described in this paper were produced by multi-material 3D printing. The geometry of each part was designed using CAD software and exported to STL

  13. 1610 IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 11, 2012 MRI-Derived 3-D-Printed Breast Phantom

    E-Print Network [OSTI]

    Hagness, Susan C.

    1610 IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 11, 2012 MRI-Derived 3-D-Printed Breast--We propose a 3-D-printed breast phantom for use in preclinical experimental microwave imaging studies the proce- dure for generating the 3-D-printed breast phantom and present the measured dielectric properties

  14. Merge2-3D: Combining Multiple Normal Maps with 3D Surfaces Sema Berkiten

    E-Print Network [OSTI]

    in computer graphics and vision, with demand for high-quality models driven by advances in 3D printing

  15. Generating 3D perspectives of textured volumetric scenes August 2005 Generating 3D perspectives

    E-Print Network [OSTI]

    Whelan, Paul F.

    Generating 3D perspectives of textured volumetric scenes August 2005 Generating 3D perspectives of textured volumetric scenes. Student Name: Michael Carmody Student ID: 98647636 Programme: Meng in Electronic Systems MEng in Electronic Systems 1 #12;Generating 3D perspectives of textured volumetric scenes

  16. 3D MEMS Simulation Modeling Using Modified Nodal Analysis J. V. Clark, N. Zhou, D. Bindel,

    E-Print Network [OSTI]

    California at Berkeley, University of

    3D MEMS Simulation Modeling Using Modified Nodal Analysis J. V. Clark, N. Zhou, D. Bindel, L, and experimental verification of several MEMS devices are presented. Simulated results include 3D mode analysis. To simulate the performance of these MEMS devices a modified nodal analysis approach is used to formulate

  17. Power Grid Optimization in 3D Circuits Using MIM and CMOS Decoupling Capacitors

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    Power Grid Optimization in 3D Circuits Using MIM and CMOS Decoupling Capacitors Pingqiang Zhou severe in 3D. CMOS decoupling capacitors (decaps) have been used effectively for controlling power grid between MIM and CMOS decaps. Experimental results show that power grid noise can be more effectively

  18. Computer Modelling of 3D Geological Surface

    E-Print Network [OSTI]

    Kodge, B G

    2011-01-01

    The geological surveying presently uses methods and tools for the computer modeling of 3D-structures of the geographical subsurface and geotechnical characterization as well as the application of geoinformation systems for management and analysis of spatial data, and their cartographic presentation. The objectives of this paper are to present a 3D geological surface model of Latur district in Maharashtra state of India. This study is undertaken through the several processes which are discussed in this paper to generate and visualize the automated 3D geological surface model of a projected area.

  19. Physical sectioning in 3D biological microscopy 

    E-Print Network [OSTI]

    Guntupalli, Jyothi Swaroop

    2009-05-15

    Our ability to analyze the microstructure of biological tissue in three dimensions (3D) has proven invaluable in modeling its functionality, and therefore providing a better understanding of the basic mechanisms of life. ...

  20. 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...

  1. 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 

  2. Nanocomposite thermite ink

    DOE Patents [OSTI]

    Tappan, Alexander S. (Albuquerque, NM); Cesarano, III, Joseph (Albuquerque, NM); Stuecker, John N. (Albuquerque, NM)

    2011-11-01

    A nanocomposite thermite ink for use in inkjet, screen, and gravure printing. Embodiments of this invention do not require separation of the fuel and oxidizer constituents prior to application of the ink to the printed substrate.

  3. Nano-composite materials

    DOE Patents [OSTI]

    Lee, Se-Hee; Tracy, C. Edwin; Pitts, J. Roland

    2010-05-25

    Nano-composite materials are disclosed. An exemplary method of producing a nano-composite material may comprise co-sputtering a transition metal and a refractory metal in a reactive atmosphere. The method may also comprise co-depositing a transition metal and a refractory metal composite structure on a substrate. The method may further comprise thermally annealing the deposited transition metal and refractory metal composite structure in a reactive atmosphere.

  4. Experimental studies of magnetic reconnection in 3D geometries

    E-Print Network [OSTI]

    Vrublevskis, Arturs

    2014-01-01

    Magnetic reconnection is an important and prevalent plasma physics phenomenon occurring in astrophysical (solar flares), space (magnetospheric substorms), and laboratory settings (tokamak sawtooth oscillations). It allows ...

  5. Ames Lab 101: 3D Metals Printer

    SciTech Connect (OSTI)

    Ott, Ryan

    2014-02-13

    To meet one of the biggest energy challenges of the 21st century - finding alternatives to rare-earth elements and other critical materials - scientists will need new and advanced tools. The Critical Materials Institute at the U.S. Department of Energy's Ames Laboratory has a new one: a 3D printer for metals research. 3D printing technology, which has captured the imagination of both industry and consumers, enables ideas to move quickly from the initial design phase to final form using materials including polymers, ceramics, paper and even food. But the Critical Materials Institute (CMI) will apply the advantages of the 3D printing process in a unique way: for materials discovery.

  6. Ames Lab 101: 3D Metals Printer

    ScienceCinema (OSTI)

    Ott, Ryan

    2014-06-04

    To meet one of the biggest energy challenges of the 21st century - finding alternatives to rare-earth elements and other critical materials - scientists will need new and advanced tools. The Critical Materials Institute at the U.S. Department of Energy's Ames Laboratory has a new one: a 3D printer for metals research. 3D printing technology, which has captured the imagination of both industry and consumers, enables ideas to move quickly from the initial design phase to final form using materials including polymers, ceramics, paper and even food. But the Critical Materials Institute (CMI) will apply the advantages of the 3D printing process in a unique way: for materials discovery.

  7. 3D Self-Portraits Etienne Vouga2

    E-Print Network [OSTI]

    O'Brien, James F.

    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

  8. 3D Modeling Engine Representation Summary Report

    SciTech Connect (OSTI)

    Steven Prescott; Ramprasad Sampath; Curtis Smith; Timothy Yang

    2014-09-01

    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.

  9. Fourier transform of the 3d NS equations The 3d NS equations are

    E-Print Network [OSTI]

    Salmon, Rick

    1 Fourier transform of the 3d NS equations The 3d NS equations are (1) vi t + vj vi xj = - p xi easily add it in at the end. Our interest is in the advection and pressure terms. Introducing the Fourier transforms (2) vi x( ) = ui k( )eikx k p x( ) = p k( )eikx k we obtain the Fourier transform of (1

  10. View Dependence of 3D Recovery from Folded Pictures and Warped 3D Faces

    E-Print Network [OSTI]

    Cavanagh, Patrick

    View Dependence of 3D Recovery from Folded Pictures and Warped 3D Faces Patrick Cavanagh Department vertical lines through the nose and the eyes. When this folded picture is tilted back and forth, the same is true, over a more restricted range of angles, as we move in front of a picture of an object

  11. 3D engine for immersive virtual environments 

    E-Print Network [OSTI]

    Anderson, Christopher Dean

    2005-02-17

    The purpose of this project is to develop a software framework, a 3D engine, which will generate images to be projected onto facets of a spatially immersive display (SID). The goal is to develop a software library to support the creation of images...

  12. 3D tracking via body radio reflections

    E-Print Network [OSTI]

    Kabelac, Zachary (Zachary E.)

    2014-01-01

    This thesis presents WiTrack, a system that tracks the 3D motion of a user from the radio signals reflected off her body. It works even if the person is occluded from the WiTrack device or in a different room. WiTrack does ...

  13. Speed-line for 3D animation 

    E-Print Network [OSTI]

    Song, Won Chan

    2007-04-25

    My thesis describes a tool which creates speed-lines automatically in 3D computer animations. Speed-lines are usually used in comic books to express fast motions in a still image. They are also used in 2D animations. Although animations don't need...

  14. Energy Savings in 3-D | ornl.gov

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

    Energy savings in 3-D ORNL researchers show production, energy advantages of additive manufacturing ORNL 3-D printer in use. ORNL 3-D printer in use. Researchers at the Department...

  15. 3D Printed and Semiconductor Technology 'Mash-up' | Department...

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

    to 60 in under five seconds. Concept to reality in just six weeks. Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life 3-D Printed Inverter Novel 3-D Printed...

  16. Fast 3D Scanning for Biometric Identification and Verification

    E-Print Network [OSTI]

    McShea, Daniel W.

    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

  17. Visualization and Analysis of 3D Gene Expression Data (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Visualization and Analysis of 3D Gene Expression Data Citation Details In-Document Search Title: Visualization and Analysis of 3D Gene Expression Data Recent...

  18. 3D Printing in 30 Seconds | Department of Energy

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

    3D Printing in 30 Seconds 3D Printing in 30 Seconds Addthis An error occurred. Unable to execute Javascript. Duration :38 Topic Science & Technology...

  19. From pictures to 3D : global optimization for scene reconstruction

    E-Print Network [OSTI]

    Chandraker, Manmohan Krishna

    2009-01-01

    SAN DIEGO From Pictures to 3D: Global Optimization for SceneOF THE DISSERTATION From Pictures to 3D: Global Optimization

  20. INCORPORATING DYNAMIC 3D SIMULATION INTO PRA

    SciTech Connect (OSTI)

    Steven R Prescott; Curtis Smith

    2011-07-01

    Through continued advancement in computational resources, development that was previously done by trial and error production is now performed through computer simulation. These virtual physical representations have the potential to provide accurate and valid modeling results and are being used in many different technical fields. Risk assessment now has the opportunity to use 3D simulation to improve analysis results and insights, especially for external event analysis. By using simulations, the modeler only has to determine the likelihood of an event without having to also predict the results of that event. The 3D simulation automatically determines not only the outcome of the event, but when those failures occur. How can we effectively incorporate 3D simulation into traditional PRA? Most PRA plant modeling is made up of components with different failure modes, probabilities, and rates. Typically, these components are grouped into various systems and then are modeled together (in different combinations) as a “system” with logic structures to form fault trees. Applicable fault trees are combined through scenarios, typically represented by event tree models. Though this method gives us failure results for a given model, it has limitations when it comes to time-based dependencies or dependencies that are coupled to physical processes which may themselves be space- or time-dependent. Since, failures from a 3D simulation are naturally time related, they should be used in that manner. In our simulation approach, traditional static models are converted into an equivalent state diagram representation with start states, probabilistic driven movements between states and terminal states. As the state model is run repeatedly, it converges to the same results as the PRA model in cases where time-related factors are not important. In cases where timing considerations are important (e.g., when events are dependent upon each other), then the simulation approach will typically provide superior results and insights. We also couple the state model with the dynamic 3D simulation analysis representing events (such as flooding) to determine which (if any) components fail. Not only does the simulation take into account any failed items from the state model, but any failures caused by the simulation are incorporated back into the state model and factored into the overall results. Using this method we incorporate accurate 3D simulation results, eliminate static-based PRA issues, and have time ordered failure information.

  1. 3D Technology for intelligent trackers

    SciTech Connect (OSTI)

    Lipton, Ronald; /Fermilab

    2010-09-01

    At Super-LHC luminosity it is expected that the standard suite of level 1 triggers for CMS will saturate. Information from the tracker will be needed to reduce trigger rates to satisfy the level 1 bandwidth. Tracking trigger modules which correlate information from closely-spaced sensor layers to form an on-detector momentum filter are being developed by several groups. We report on a trigger module design which utilizes three dimensional integrated circuit technology incorporating chips which are connected both to the top and bottom sensor, providing the ability to filter information locally. A demonstration chip, the VICTR, has been submitted to the Chartered/Tezzaron two-tier 3D run coordinated by Fermilab. We report on the 3D design concept, the status of the VICTR chip and associated sensor integration utilizing oxide bonding.

  2. Azimuthally Anisotropic 3D Velocity Continuation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Burnett, William; Fomel, Sergey

    2011-01-01

    We extend time-domain velocity continuation to the zero-offset 3D azimuthally anisotropic case. Velocity continuation describes how a seismic image changes given a change in migration velocity. This description turns out to be of a wave propagation process, in which images change along a velocity axis. In the anisotropic case, the velocity model is multiparameter. Therefore, anisotropic image propagation is multidimensional. We use a three-parameter slowness model, which is related to azimuthal variations in velocity, as well as their principal directions. This information is useful for fracture and reservoir characterization from seismic data. We provide synthetic diffraction imaging examples to illustratemore »the concept and potential applications of azimuthal velocity continuation and to analyze the impulse response of the 3D velocity continuation operator.« less

  3. 3D Printing of Scintillating Materials

    E-Print Network [OSTI]

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

    2014-06-15

    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.

  4. 3D Printing of Scintillating Materials

    E-Print Network [OSTI]

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

    2014-01-01

    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.

  5. Completing unknown portions of 3D scenes by 3D visual propagation 

    E-Print Network [OSTI]

    Breckon, Toby P

    As the requirement for more realistic 3D environments is pushed forward by the computer {graphics | movie | simulation | games} industry, attention turns away from the creation of purely synthetic, artist derived environments towards the use of real...

  6. Enhancement of Thermoelectric Properties by Modulation-Doping in Silicon Germanium Alloy Nanocomposites

    E-Print Network [OSTI]

    Yu, Bo

    Modulation-doping was theoretically proposed and experimentally proved to be effective in increasing the power factor of nanocomposites (Si[subscript 80]Ge[subscript 20])[subscript 70](Si[subscript 100]B[subscript 5])[subscript ...

  7. Scanning and Printing Persons in 3D Jurgen Sturm1

    E-Print Network [OSTI]

    Lunds Universitet

    miniatures of persons using a Kinect sensor and a 3D color printer. To achieve this, we acquire color- through in rapid prototyping in recent years. Modern 3D printers are able to print colored 3D models at resolutions comparable to 2D paper printers. On the one hand, the creation of a detailed, printable 3D model

  8. Non-Realistic 3D Object Stylization Julian Kratt1

    E-Print Network [OSTI]

    Sharf, Andrei

    or might be printed using a 3D printer. We conducted a user study to verify the proposed stylizationsNon-Realistic 3D Object Stylization Julian Kratt1 Ferdinand Eisenkeil1 S¨oren Pirk1 Andrei Sharf2 paradigm of non-realistic 3D stylization, where the expressiveness of a given 3D model is man- ifested

  9. AUTOCOSTRUIRSI UNA STAMPANTE 3D Da Dove Iniziare?

    E-Print Network [OSTI]

    AUTOCOSTRUIRSI UNA STAMPANTE 3D #12;Da Dove Iniziare? Quale sarà la 3D Printer più adatta al mio stampante 3D partendo da zero? · E' meglio che acquisto un kit di montaggio anche se più caro? E' STATA UNA progetto sarà la costruzione di una stampante 3D. ATTENZIONE: Il fab lab non ti fa il lavoro ma ti supporta

  10. Web 3D Rendering Without Plug-Ins Andrs Buritic

    E-Print Network [OSTI]

    Dahlquist, Kam D.

    OpenJSGL Web 3D Rendering Without Plug-Ins Andrés Buriticá Loyola Marymount University Faculty, 2007 Introduction 3D graphics Applications The Worldwide Web #12;Concept OpenGL JavaScript OpenJSGL Previous Work: 3D In A Browser Java applets Flash JavaScript VRML, later called X3D Java Web Start Other

  11. 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

  12. 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

  13. Status and Outlook of Integrated Transport Analysis Suite, TASK3D-a

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    Suite TASK3D-a01 (2012.9) Automated Experimental Energy Balance Analysis Significant progress (NBI) Experimental energy/momentum balance wout (VMEC) newboz.dat Te(reff) ne(reff) Ti(reff) output eg-UD) close collaboration with LHD Experiment Group and Kyoto University 1 #12;/14 LHD, the world largest

  14. ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. X, NO. X, JANUARY 2013 1 MRI-derived 3D-printed breast phantom for

    E-Print Network [OSTI]

    Van Veen, Barry D.

    ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. X, NO. X, JANUARY 2013 1 MRI-derived 3D-printed--We propose a 3D-printed breast phantom for use in pre-clinical experimental microwave imaging studies the procedure for generating the 3D-printed breast phantom and present the measured dielectric properties

  15. 1998 3D GIS vs Advanced visualisation -Hack & Ozmutlu -LWI Seminar 1 3D-GIS vs Advanced Visualization

    E-Print Network [OSTI]

    Hack, Robert

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

  16. 3D reconstruction of tensors and vectors

    SciTech Connect (OSTI)

    Defrise, Michel; Gullberg, Grant T.

    2005-02-17

    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.

  17. Plasmonic waves of a semi-infinite random nanocomposite

    SciTech Connect (OSTI)

    Moradi, Afshin

    2013-10-15

    The dispersion curves of the plasmonic waves of a semi-infinite random metal-dielectric nanocomposite, consisting of bulk metal embedded with dielectric inclusions, are presented. Two branches of p-polarized surface plasmon-polariton modes are found to exist. The possibility of experimentally observing the surface waves by attenuated total reflection is demonstrated.

  18. 3D Monitoring of LHCb Inner Tracker

    E-Print Network [OSTI]

    Sainvitu, Pascal

    2015-01-01

    The positions of the Inner Tracker (IT) detectors of the LHCb experiment installed in the LHC at CERN are impacted by the LHCb dipole magnet powering. In the past the movements of the stations have been measured using standard survey methods during magnet tests in shutdown periods. But the survey targets are visible only in very narrow spaces and the access to the IT is very difficult, even impossible in the central region when the detector is closed. Finally the precision of the standard survey measurement is affected by the poor configuration. In 2013 and 2014, during the first long shutdown of the LHC (LS1), the CERN Survey team (EN/MEF-SU) in collaboration with the LHCb Technical Coordination and the EPFL (Ecole Polytechnique Fédérale de LAUSANNE, CH), developed a permanent monitoring system which has been tested and installed in order to allow the 3D position measurement of the IT stations, even during the run periods, with a precision of 100 microns at 1 sigma level. The 3D Monitoring system of the LH...

  19. Polymer nanocomposites for high-temperature composite repair

    SciTech Connect (OSTI)

    Sheng, Xia

    2008-12-01

    A novel repair agent for resin-injection repair of advanced high temperature composites was developed and characterized. The repair agent was based on bisphenol E cyanate ester (BECy) and reinforced with alumina nanoparticles. To ensure good dispersion and compatibility with the BECy matrix in nanocomposites, the alumina nanoparticles were functionalized with silanes. The BECy nanocomposites, containing bare and functionalized alumina nanoparticles, were prepared and evaluated for their thermal, mechanical, rheological, and viscoelastic properties. The monomer of BECy has an extremely low viscosity at ambient temperature, which is good for processability. The cured BECy polymer is a highly cross-linked network with excellent thermal mechanical properties, with a high glass transition temperature (T{sub g}) of 270 C and decomposition temperature above 350 C. The incorporation of alumina nanoparticles enhances the mechanical and rheological properties of the BECy nanocomposites. Additionally, the alumina nanoparticles are shown to catalyze the cure of BECy. Characterization of the nanocomposites included dynamic mechanical analysis, differential scanning calorimetry, thermogravimetric analysis, rheological and rheokinetic evaluation, and transmission electron microscopy. The experimental results show that the BECy nanocomposite is a good candidate as repair agent for resin-injection repair applications.

  20. Z-99 3D focussing operator estimation from sparse 3D data

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    -line sampling criteria. Given the correct velocity model, and from the model the correct migration operators, these data-sets can be imaged very well by applying the 3D migration operators in a domain where full areal), whereby the imaging process was split up into two steps, focussing shots and receivers separately in depth

  1. 3DTV -PANORAMIC 3D MODEL ACQUISITION AND ITS 3D VISUALIZATION ON THE INTERACTIVE FOGSCREEN

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    - ings in a neighborhood for a car chase or cultural heritage sites for a documentary. The goal of 3D. INTRODUCTION - MODEL ACQUISITION FLOW AND VISUALIZATION For 3DTV systems we present a platform with two on the interactive FogScreen Our new platform comprises an 8 Mpixel omnidirectional camera CI in conjunction

  2. Fab trees for designing complex 3D printable materials

    E-Print Network [OSTI]

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

    2013-01-01

    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 ...

  3. A Desktop 3D Printer in Safety-Critical Java

    E-Print Network [OSTI]

    A Desktop 3D Printer in Safety-Critical Java Tórur Biskopstø Strøm Kongens Lyngby 2012 IMM-MSc-2012-critical use cases implemented according to the specification. This thesis presents a RepRap 3D desktop printer

  4. 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...

  5. 3D printing rises to the occasion | ornl.gov

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

    3D printing rises to the occasion ORNL group shows how it's done, one layer at a time A perforated metal box produced by an Arcam 3D printer. This detailed A perforated metal box...

  6. 3D Measurements in Images using CAD Models George Vosselman

    E-Print Network [OSTI]

    Vosselman, George

    the alignment. 1 Introduction Future geographical information systems will contain 3D and highly structured information. The development of procedures for the extraction of 3D object models from digital aerial imagery

  7. Tracking Objects Using 3D Edge Detectors February 2013

    E-Print Network [OSTI]

    O'Leary, Dianne P.

    Tracking Objects Using 3D Edge Detectors February 2013 SIAM CSE 2013 Dianne P. O'Leary c 2013 1 #12;Tracking Objects Using 3D Edge Detectors Dianne P. O'Leary Computer Science Dept. and Institute

  8. Energy Department Unveils 3D-Printed Building; New Initiatives...

    Office of Environmental Management (EM)

    Unveils 3D-Printed Building; New Initiatives During Industry Day Energy Department Unveils 3D-Printed Building; New Initiatives During Industry Day October 1, 2015 - 12:25pm...

  9. Visualization and Analysis of 3D Gene Expression Data (Technical...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Visualization and Analysis of 3D Gene Expression Data Citation Details In-Document Search Title: Visualization and Analysis of 3D Gene Expression Data You are...

  10. Ames Lab 101: Real-Time 3D Imaging

    ScienceCinema (OSTI)

    Zhang, Song

    2012-08-29

    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.

  11. 3D Simulations of Thermonuclear Supernovae From Very Massive Stars

    E-Print Network [OSTI]

    Crowther, Paul

    3D Simulations of Thermonuclear Supernovae From Very Massive Stars Ke-Jung (Ken) Chen Johnston #12;3D Simulations of Thermonuclear Supernovae From Very Massive Stars Ke-Jung (Ken) Chen Johnston

  12. Computational 3D and reflectivity imaging with high photon efficiency

    E-Print Network [OSTI]

    Shin, Dongeek

    2014-01-01

    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 ...

  13. 3-D Seismic Methods For Geothermal Reservoir Exploration And...

    Open Energy Info (EERE)

    3-D Seismic Methods For Geothermal Reservoir Exploration And Assessment-Summary Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: 3-D Seismic Methods For...

  14. 3D deformation field throughout the interior of materials.

    SciTech Connect (OSTI)

    Jin, Huiqing; Lu, Wei-Yang

    2013-09-01

    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.

  15. Facial image comparison using 3D techniques Arnout Ruifroka

    E-Print Network [OSTI]

    Veltkamp, Remco

    and European Surface Anthropometry Resource) survey [3]. The main goal of the CAESAR-survey was to acquire 3D

  16. Development of monolithic 3D ion traps microfabricated

    E-Print Network [OSTI]

    Hensinger, Winfried

    surface traps [1,2], 2) 3D Au coated alumina [3-5],3) 3D degenerate Silicon [6], 4) monolithic 3D Ga. 6) Electroplating to 5 µm thickness of Au. Concept Fabrication method Potential -25 V 25 V 0 V

  17. 3D FOOT DIGITIZING AND ITS APPLICATION TO FOOTWEAR FITTING

    E-Print Network [OSTI]

    Juan, Alfons

    1 3D FOOT DIGITIZING AND ITS APPLICATION TO FOOTWEAR FITTING DIGITALISATION 3D DU PIED ET LEUR and methodological difficulties. The combination of 3D scanning systems with mathematical classification techniques for a given customer. In this paper, a new approach for customized classification (assignment) of comfortable

  18. 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

  19. Structural Optimization and 3D Printing Robert V. Kohn

    E-Print Network [OSTI]

    Structural Optimization and 3D Printing Robert V. Kohn Courant Institute, NYU SIAM CS&E Meeting, March 2015 Robert V. Kohn Structural Optimization and 3D Printing #12;Outline Mandate: identify areas with interesting open questions. Hence 3D printing and structural optimization. My involvement began

  20. 3D Computer Vision and Video Computing IntroductionIntroduction

    E-Print Network [OSTI]

    Zhu, Zhigang

    /Analysis/Interpretation Interpretation is an Artificial Intelligence Problem Sources of Knowledge in Vision Levels of Abstraction1 3D Computer Vision and Video Computing IntroductionIntroduction CSc I6716 Spring 2012 3D Computer Vision Introduction Instructor: Zhigang Zhu City College of New York zzhu@ccny.cuny.edu 3D Computer

  1. 3D Computer Vision and Video Computing IntroductionIntroduction

    E-Print Network [OSTI]

    Zhu, Zhigang

    /Analysis/Interpretation Interpretation is an Artificial Intelligence Problem Sources of Knowledge in Vision Levels of Abstraction1 3D Computer Vision and Video Computing IntroductionIntroduction CSc I6716 Spring 2011 3D Computer Vision Introduction Instructor: Zhigang Zhu City College of New York zzhu@ccny.cuny.edu 3D Computer

  2. 3D Computer Vision and Video Computing Introduction

    E-Print Network [OSTI]

    Zhu, Zhigang

    /Analysis/Interpretation Interpretation is an Artificial Intelligence Problem Sources of Knowledge in Vision Levels of Abstraction3D Computer Vision and Video Computing Introduction Instructor: Zhigang Zhu City College of New York zzhu@ccny.cuny.edu CSc I6716 Fall 2010 3D Computer Vision Introduction #12;3D Computer Vision

  3. 3D Computer Vision and Video Computing IntroductionIntroduction

    E-Print Network [OSTI]

    Zhu, Zhigang

    /Analysis/Interpretation Interpretation is an Artificial Intelligence Problem Sources of Knowledge in Vision Levels of Abstraction1 3D Computer Vision and Video Computing IntroductionIntroduction CSc I6716 Spring 2013 3D Computer Vision Introduction Instructor: Zhigang Zhu City College of New York zzhu@ccny.cuny.edu 3D Computer

  4. 3D Printing Prof. Hank Dietz & Paul Eberhart

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    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

  5. RESEARCH ARTICLE Strengthening of 3D Printed Fused

    E-Print Network [OSTI]

    Haller, Gary L.

    RESEARCH ARTICLE Strengthening of 3D Printed Fused Deposition Manufactured Parts Using the Fill as examples of 3D printed parts used in real-world applications. Introduction While the quality of additive to the wider-spread implementation of 3D- printed components continues to be the limited strength of printed

  6. 3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1

    E-Print Network [OSTI]

    Boyer, Edmond

    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

  7. Performance of a 3D Spectral code on the Cray T3D and IBM SP2 parallel supercomputers

    E-Print Network [OSTI]

    Brummell, Nic

    Performance of a 3D Spectral code on the Cray T3D and IBM SP2 parallel supercomputers Clive F of the new generation of distributed memory supercomputers, in particular the Cray T3D and IBM SP2, we of 256 3 and 512 3 . The first two tables are for the Cray T3D and the other two for the IBM SP2

  8. ZABULIS et al.: 3D HEAD POSE ESTIMATION FROM MULTIPLE DISTANT VIEWS 1 3D head pose estimation from multiple

    E-Print Network [OSTI]

    Zabulis, Xenophon

    imaging, despite the low-resolution appearance of subjects. 1 Introduction 3D head pose estimation. In such situations, a human head is imaged in relatively low resolution, illumination artifacts are frequentZABULIS et al.: 3D HEAD POSE ESTIMATION FROM MULTIPLE DISTANT VIEWS 1 3D head pose estimation from

  9. AUTOMATED RECOGNITION OF 3D CAD OBJECTS IN SITE LASER SCANS FOR PROJECT 3D STATUS VISUALIZATION AND

    E-Print Network [OSTI]

    Bosché, Frédéric

    15296) are being developed for project and facility life-cycle management. They are typically built upon control (QA/QC), and (4) life-cycle 3D health monitoring. On one side, multi-dimensional CAD softwareAUTOMATED RECOGNITION OF 3D CAD OBJECTS IN SITE LASER SCANS FOR PROJECT 3D STATUS VISUALIZATION

  10. Programao Grfica 3D com OpenGL, Open Inventor e Java 3D ALESSANDRO L. BICHO

    E-Print Network [OSTI]

    Barbosa, Alberto

    Programação Gráfica 3D com OpenGL, Open Inventor e Java 3D ALESSANDRO L. BICHO ½ LUIZ GONZAGA DA estudado a Open Inventor, uma ØÓÓÐ Ø orientada a objetos construída sobre a OpenGL, contemplando funções a Java 3D, que é fortemente inspirada na Open Inventor. Ela é a biblioteca padrão da linguagem Java para

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

    E-Print Network [OSTI]

    Herbin, Raphaèle

    Stack and cell modelling with SOFC3D: a computer program for the 3D simulations of solid oxide fuel, France 1 Introduction SOFC3D is a computer program, which simulates the behaviour of a solid oxide fuel or the channels, the electrical potential \\Phi at any point of the solid part of the SOFC, and the molar fractions

  12. RELAP5-3D Compressor Model

    SciTech Connect (OSTI)

    James E. Fisher; Cliff B. Davis; Walter L. Weaver

    2005-06-01

    A compressor model has been implemented in the RELAP5-3D© code. The model is similar to that of the existing pump model, and performs the same function on a gas as the pump performs on a single-phase or two-phase fluid. The compressor component consists of an inlet junction and a control volume, and optionally, an outlet junction. This feature permits cascading compressor components in series. The equations describing the physics of the compressor are derived from first principles. These equations are used to obtain the head, the torque, and the energy dissipation. Compressor performance is specified using a map, specific to the design of the machine, in terms of the ratio of outlet-to-inlet total (or stagnation) pressure and adiabatic efficiency as functions of rotational velocity and flow rate. The input quantities are specified in terms of dimensionless variables, which are corrected to stagnation density and stagnation sound speed. A small correction was formulated for the input of efficiency to account for the error introduced by assumption of constant density when integrating the momentum equation. Comparison of the results of steady-state operation of the compressor model to those of the MIT design calculation showed excellent agreement for both pressure ratio and power.

  13. 3-D simulations of multiple beam klystrons

    SciTech Connect (OSTI)

    Smithe, David N.; Bettenhausen, Mike; Ludeking, Larry; Caryotakis, G.; Sprehn, Daryl; Scheitrum, Glenn [Mission Research Corporation, 8560 Cinderbed Rd., Suite 700, Newington, Virginia 22122 (United States); Stanford Linear Accelerator Center, 2575 Sand Hill Rd., Menlo Park, California 94025 (United States)

    1999-05-07

    The MAGIC3D simulation code is being used to assess the multi-dimensional physics issues relating to the design and operation of multiple beam klystrons. Investigations, to date, include a detailed study of the mode structure of the cavities in the 19-beam hexagonally packed geometry and a study of the velocity spread caused by the cavity mode's field profile. Some attempts to minimize this effect are investigated. Additional simulations have provided quantification of the beam loading Q in a dual input cavity, and optimization of a dual output cavity. An important goal of the simulations is an accurate picture of beam transport along the length of the MBK. We have quantified the magnitude and spatial variation of the beam-line space charge interactions within a cavity gap. Present simulations have demonstrated the transport of the beam through three cavities (the present limits of our simulation size) without difficulty; additional length simulations are expected. We have also examined unbalanced beam-line scenarios, e.g., one beam-line suppressed, and find little disturbance to the transport in individual cavity tests, with results for multiple cavity transport expected.

  14. Excitation energies and transition rates in the 3d2 states of Ca-like ions

    E-Print Network [OSTI]

    Johnson, Walter R.

    Excitation energies and transition rates in the 3d2 states of Ca-like ions U. I. Safronova,1 W. R October 2000; published 14 February 2001 Energies, transition probabilities, and lifetimes are calculated matrix elements. The resulting transition energies and lifetimes are compared with experimental values

  15. Tuning dehydrogenation temperature of carbonammonia borane nanocomposites

    E-Print Network [OSTI]

    Cao, Guozhong

    the hydrogen storage properties. For example, the dehydrogenation temperature of ammonia borane (ABTuning dehydrogenation temperature of carbon­ammonia borane nanocomposites Saghar Sepehri, Betzaida temperature and kinetics of coherent carbon­ammonia borane nanocomposites prepared by sol­gel synthesis

  16. Magnetoelectric polymer nanocomposite for flexible electronics

    SciTech Connect (OSTI)

    Alnassar, M. Alfadhel, A.; Ivanov, Yu. P.; Kosel, J.

    2015-05-07

    This paper reports the fabrication and characterization of a new type of magnetoelectric polymer nanocomposite that exhibits excellent ferromagnetism and ferroelectricity simultaneously at room temperature. The multiferroic nanocomposite consists of high aspect ratio ferromagnetic iron nanowires embedded inside a ferroelectric co-polymer poly(vinylindene fluoride-trifluoroethylene), P(VDF-TrFE). The nanocomposite has been fabricated via a simple low temperature spin coating technique. Structural, ferromagnetic, ferroelectric, and magnetoelectric properties of the developed nanocomposite have been characterized. The nanocomposite films showed isotropic magnetic properties due to the random orientation of the iron nanowires inside the film. In addition, the embedded nanowires did not hinder the ferroelectric phase development of the nanocomposite. The developed nanocomposite showed a high magnetoelectric coupling response of 156?mV/cmOe measured at 3.1 kOe DC bias field. This value is among the highest reported magnetoelectric coupling in two phase particulate polymer nanocomposites.

  17. A Jones matrix formalism for simulating 3D Polarised Light Imaging of brain tissue

    E-Print Network [OSTI]

    Menzel, Miriam; De Raedt, Hans; Reckfort, Julia; Amunts, Katrin; Axer, Markus

    2015-01-01

    The neuroimaging technique 3D Polarised Light Imaging (3D-PLI) provides a high-resolution reconstruction of nerve fibres in human post-mortem brains. The orientations of the fibres are derived from birefringence measurements of histological brain sections assuming that the nerve fibres - consisting of an axon and a surrounding myelin sheath - are uniaxial birefringent and that the measured optic axis is oriented in direction of the nerve fibres (macroscopic model). Although experimental studies support this assumption, the molecular structure of the myelin sheath suggests that the birefringence of a nerve fibre can be described more precisely by multiple optic axes oriented radially around the fibre axis (microscopic model). In this paper, we compare the use of the macroscopic and the microscopic model for simulating 3D-PLI by means of the Jones matrix formalism. The simulations show that the macroscopic model ensures a reliable estimation of the fibre orientations as long as the polarimeter does not resolve ...

  18. 3D Magnetotelluric Characterization Of The Geothermal Anomaly...

    Open Energy Info (EERE)

    3D Magnetotelluric Characterization Of The Geothermal Anomaly In The Llucmajor Aquifer System (Majorca, Spain) Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  19. 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   

  20. 3D Mt Resistivity Imaging For Geothermal Resource Assessment...

    Open Energy Info (EERE)

    3D Mt Resistivity Imaging For Geothermal Resource Assessment And Environmental Mitigation At The Glass Mountain Kgra, California Jump to: navigation, search OpenEI Reference...

  1. Novel 3-D Printed Inverters for Electric Vehicles Can Improve...

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

    and Efficiency 3D Printed and Semiconductor Technology 'Mash-up' The General Motors Baltimore Operations facility at White Marsh is producing electric motors for the Chevrolet...

  2. 3-D Combustion Simulation Strategy Status, Future Potential,...

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

    Combustion Simulation Strategy Status, Future Potential, and Application Issues 3-D Combustion Simulation Strategy Status, Future Potential, and Application Issues 2004 Diesel...

  3. Fluid Imaging of Enhanced Geothermal Systems through Joint 3D...

    Open Energy Info (EERE)

    Fluid Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Inverse Modeling Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011....

  4. Nanocomposite Materials for Lithium Ion Batteries

    SciTech Connect (OSTI)

    2011-05-31

    Fact sheet describing development and application of processing and process control for nanocomposite materials for lithium ion batteries

  5. Effect of CNTs dispersion on the thermal and mechanical properties of Cu/CNTs nanocomposites

    SciTech Connect (OSTI)

    Muhsan, Ali Samer, E-mail: alisameer2007@gmail.com, E-mail: faizahmad@petronas.com.my; Ahmad, Faiz, E-mail: alisameer2007@gmail.com, E-mail: faizahmad@petronas.com.my; Yusoff, Puteri Sri Melor Megat Bt, E-mail: puteris@petronas.com.my [Department of Mechanical Engineering, Universiti Teknologi PETRONAS (UTP) (Malaysia); Mohamed, Norani M., E-mail: noranimuti-mohamed@petronas.com.my [Centre of Innovative Nanostructures and Nanodevices (COINN), UTP (Malaysia); Raza, M. Rafi, E-mail: rafirazamalik@gmail.com [Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor (Malaysia)

    2014-10-24

    Modified technique of metal injection molding (MIM) was used to fabricate multiwalled carbon nanotube (CNT) reinforced Cu nanocomposites. The effect of adding different amount of CNTs (0-10 vol.%) on the thermal and mechanical behaviour of the fabricated nanocomposites is presented. Scanning electron microscope analysis revealed homogenous dispersion of CNTs in Cu matrices at different CNTs contents. The experimentally measured thermal conductivities of Cu/CNTs nanocomposites showed extraordinary increase (76% higher than pure sintered Cu) with addition of 10 vol.% CNTs. As compared to the pure sintered Cu, increase in modulus of elasticity (Young's modulus) of Cu/CNTs nanocomposites sintered at 1050°C for 2.5 h was measured to be 48%. However, in case of 7.5 vol.% CNTs, Young's modulus was increased significantly about 51% compared to that of pure sintered Cu.

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

    E-Print Network [OSTI]

    Bruno, Luca

    2015-01-01

    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.

  7. Modeling Three-Dimensional Shock Initiation of PBX 9501 in ALE3D

    SciTech Connect (OSTI)

    Leininger, L; Springer, H K; Mace, J; Mas, E

    2008-07-08

    A recent SMIS (Specific Munitions Impact Scenario) experimental series performed at Los Alamos National Laboratory has provided 3-dimensional shock initiation behavior of the HMX-based heterogeneous high explosive, PBX 9501. A series of finite element impact calculations have been performed in the ALE3D [1] hydrodynamic code and compared to the SMIS results to validate and study code predictions. These SMIS tests used a powder gun to shoot scaled NATO standard fragments into a cylinder of PBX 9501, which has a PMMA case and a steel impact cover. This SMIS real-world shot scenario creates a unique test-bed because (1) SMIS tests facilitate the investigation of 3D Shock to Detonation Transition (SDT) within the context of a considerable suite of diagnostics, and (2) many of the fragments arrive at the impact plate off-center and at an angle of impact. A particular goal of these model validation experiments is to demonstrate the predictive capability of the ALE3D implementation of the Tarver-Lee Ignition and Growth reactive flow model [2] within a fully 3-dimensional regime of SDT. The 3-dimensional Arbitrary Lagrange Eulerian (ALE) hydrodynamic model in ALE3D applies the Ignition and Growth (I&G) reactive flow model with PBX 9501 parameters derived from historical 1-dimensional experimental data. The model includes the off-center and angle of impact variations seen in the experiments. Qualitatively, the ALE3D I&G calculations reproduce observed 'Go/No-Go' 3D Shock to Detonation Transition (SDT) reaction in the explosive, as well as the case expansion recorded by a high-speed optical camera. Quantitatively, the calculations show good agreement with the shock time of arrival at internal and external diagnostic pins. This exercise demonstrates the utility of the Ignition and Growth model applied for the response of heterogeneous high explosives in the SDT regime.

  8. EXPERIMENTAL CHARACTERIZATION AND NUMERICAL MODELING OF THERMAL AND ELECTROCHEMISTRY EFFECTS IN

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    EXPERIMENTAL CHARACTERIZATION AND NUMERICAL MODELING OF THERMAL AND ELECTROCHEMISTRY EFFECTS IN 3D and Numerical Modeling of Thermal and Electrochemistry Effects in 3D Bionanoelectronics Platform by Neha

  9. Chopper: Partitioning models into 3D-printable parts

    E-Print Network [OSTI]

    Luo, Linjie

    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 ...

  10. Deep Learning Representation using Autoencoder for 3D Shape Retrieval

    E-Print Network [OSTI]

    Deep Learning Representation using Autoencoder for 3D Shape Retrieval Zhuotun Zhu, Xinggang Wang@hust.edu.cn Abstract--We study the problem of how to build a deep learning representation for 3D shape. Deep learning the features learned on 2D images. In addition, we show the proposed deep learning feature is complementary

  11. Noise Analysis and Synthesis for 3D Laser Depth Scanners

    E-Print Network [OSTI]

    Martin, Ralph R.

    Noise Analysis and Synthesis for 3D Laser Depth Scanners Xianfang Sun a,b,, Paul L. Rosin a , Ralph the noise present in range data measured by a Konica Minolta Vivid 910 scanner, in order to better characterise real scanner noise. Methods for denoising 3D mesh data have often assumed the noise to be Gaussian

  12. Density-Based Shape Descriptors for 3D Object Retrieval

    E-Print Network [OSTI]

    Yemez, Yücel

    position among competing methods. 1 Introduction There is a growing interest in 3D shape classification, matching and retrieval as 3D object models become more commonplace in various domains such as computer-aided design, medical imaging, molecular analysis and digital preser- vation of cultural heritage. The research

  13. 3D Wavelet-Based Filter and Method

    DOE Patents [OSTI]

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

    2008-08-12

    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.

  14. Kirchhoff prestack depth migration in 3-D simple models

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Kirchhoff prestack depth migration in 3-D simple models: comparison of triclinic anisotropy depth migration to calculate migrated sections in 3-D simple anisotropic homogeneous velocity models interface. The anisotropy in the upper layer is triclinic. We apply Kirch- hoff prestack depth migration

  15. AUTOMATIC AND ROBUST SEMANTIC REGISTRATION OF 3D HEAD SCANS

    E-Print Network [OSTI]

    Eisert, Peter

    useful for error- prone vision techniques like stereo analysis but also for model based repairing for applications such as 3D graphics production and also for computer vision research. Laser scanners are the primeAUTOMATIC AND ROBUST SEMANTIC REGISTRATION OF 3D HEAD SCANS David C. Schneider, Peter Eisert

  16. A 3D Magnetic Force Manipulator DC Prototype

    E-Print Network [OSTI]

    North Carolina at Chapel Hill, University of

    A 3D Magnetic Force Manipulator DC Prototype Leandra Vicci Microelectronic Systems Laboratory optical field intensities which interact strongly with many materials and may produce undesired side;Leandra Vicci A 3D Magnetic Force Manipulator DC Prototype 17 October 2001 1 Conceptual design

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

    E-Print Network [OSTI]

    New Mexico, University of

    of helical structures (3D photonic crystals) using a simple, parallel, large-area lithography processLarge area 3D helical photonic crystals A. K. Rauba) and S. R. J. Brueckb) Center for High, enabling a high index contrast chiral meta- material. Optical transmission measurements of these helical

  18. Unraveling the 3D genome: genomics tools for multiscale exploration

    E-Print Network [OSTI]

    Straight, Aaron

    Unraveling the 3D genome: genomics tools for multiscale exploration Viviana I. Risca and William J genome and the roles it may play in regulating transcription. Here we review core methods and new tools-scale chromosomal domains, and discuss the emerging pic- ture of the 3D genome that these tools have revealed. Blind

  19. Scatterplot3d an R package for Visualizing Multivariate Data

    E-Print Network [OSTI]

    Gotelli, Nicholas J.

    Scatterplot3d ­ an R package for Visualizing Multivariate Data Uwe Ligges and Martin M Software: Ligges, U. and M¨achler, M. (2003): Scatterplot3d ­ an R Package for Visualizing Multivariate for the visualization of multivariate data in a three dimensional space. R is a "language for data analysis and graphics

  20. Energy Effective 3D Stacked Hybrid NEMFET-CMOS Caches

    E-Print Network [OSTI]

    Cotofana, Sorin

    Energy Effective 3D Stacked Hybrid NEMFET-CMOS Caches Mihai Lefter, Marius Enachescu, George Razvan-stacked hybrid memories as alternative to traditional CMOS SRAMs in L1 and L2 cache implementations and analyse-per-Cycle (IPC) and energy consumption. The 3D hybrid memory cell relies on: (i) a Short Circuit Current Free

  1. 3-D Facial Imaging for Identification Anselmo Lastra

    E-Print Network [OSTI]

    McShea, Daniel W.

    Elkins ­ Ali Farsaie ­ Ping Zhuang #12;The Vision · For program like Global Entry, NEXUS, or SENTRI Right Camera Making the 3D Model · If we can identify same point in 2 views, we can compute depth at that point, and thus 3D model #12;Big Problem: Correspondence · What if we can't find corresponding point

  2. CREATING 3D ANIMATED HUMAN BEHAVIORS FOR VIRTUAL WORLDS

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    i CREATING 3D ANIMATED HUMAN BEHAVIORS FOR VIRTUAL WORLDS Jan M. Allbeck A DISSERTATION in Computer, and a scholar. #12;iv ABSTRACT CREATING 3D ANIMATED HUMAN BEHAVIORS FOR VIRTUAL WORLDS Jan M. Allbeck Norman I. Badler Creating virtual scenarios that simulate a substantial human population with typical and varied

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

    E-Print Network [OSTI]

    Ronquist, Fredrik

    (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

  4. Modeling 3D animals from a side-view sketch Even Entem a,b,n

    E-Print Network [OSTI]

    Cordier, Frederic

    environments and of 3D printing technologies, many practitioners would like to author their own 3D shapes

  5. Comparison of 2D and 3D gamma analyses

    SciTech Connect (OSTI)

    Pulliam, Kiley B.; Huang, Jessie Y.; Howell, Rebecca M.; Followill, David; Kry, Stephen F.; Bosca, Ryan; O’Daniel, Jennifer

    2014-02-15

    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.

  6. Suitability for 3D Printed Parts for Laboratory Use

    SciTech Connect (OSTI)

    Zwicker, Andrew P.; Bloom, Josh; Albertson, Robert; Gershman, Sophia

    2014-08-01

    3D printing has become popular for a variety of users, from industrial to the home hobbyist, to scientists and engineers interested in producing their own laboratory equipment. In order to determine the suitability of 3D printed parts for our plasma physics laboratory, we measured the accuracy, strength, vacuum compatibility, and electrical properties of pieces printed in plastic. The flexibility of rapidly creating custom parts has led to the 3D printer becoming an invaluable resource in our laboratory and is equally suitable for producing equipment for advanced undergraduate laboratories.

  7. Beyond 3D Printing: The New Dimensions of Additive Fabrication

    E-Print Network [OSTI]

    Keating, Steven John

    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. ...

  8. Polymer Solar Cells: New Materials, 3D Morphology, and Tandem...

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

    Polymer Solar Cells: New Materials, 3D Morphology, and Tandem Devices March 2, 2010 at 3pm36-428 Ren Janssen Molecular Materials and Nanosystems, Eindhoven University of...

  9. 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.

  10. 3D assembly and actuation of nanopatterned membranes using nanomagnets

    E-Print Network [OSTI]

    Nichol, Anthony John

    2011-01-01

    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 ...

  11. 3D Printed Microscope for Mobile Devices that Cost Pennies

    ScienceCinema (OSTI)

    Erikson, Rebecca; Baird, Cheryl; Hutchinson, Janine

    2015-06-23

    Scientists at PNNL have designed a 3D-printable microscope for mobile devices using pennies worth of plastic and glass materials. The microscope has a wide range of uses, from education to in-the-field science.

  12. The Active Wave-front Sampling based 3D endoscope

    E-Print Network [OSTI]

    Prakash, Hemanth

    2007-01-01

    This thesis investigates the potential of Active Wave-front Sampling (AWS) for real time quantified 3D endoscopy. AWS is a technique by which phase information from an aperture area of a lens is obtained by sampling ...

  13. CSers develop new 3-D design tool Haydar Taygun

    E-Print Network [OSTI]

    Laidlaw, David

    Painting," the old model for 3-D drawing at the Cave Automatic Virtual Environment in 2001, Keefe worked reality. Media Credit: Courtesy of Daniel Keefe A team of Brown computer scientists has developed "Drawing

  14. 3D Representations for Software Visualization Andrian Marcus

    E-Print Network [OSTI]

    Maletic, Jonathan I.

    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

  15. 3D Printed Microscope for Mobile Devices that Cost Pennies

    SciTech Connect (OSTI)

    Erikson, Rebecca; Baird, Cheryl; Hutchinson, Janine

    2014-09-15

    Scientists at PNNL have designed a 3D-printable microscope for mobile devices using pennies worth of plastic and glass materials. The microscope has a wide range of uses, from education to in-the-field science.

  16. Fitting of Constrained Models to Poor 3D Data 

    E-Print Network [OSTI]

    Robertson, Craig; Fisher, Robert B.; Werghi, Naoufel; Ashbrook, Anthony

    2000-01-01

    In this work we have addressed the question of whether it is possible to extract parametric models of features from poor quality 3D data. In doing this we have examined the applicability of an evolutionary strategy to the ...

  17. 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...

  18. Infrastructure for 3D model reconstruction of marine structures

    E-Print Network [OSTI]

    Kurniawati, Hanna

    2011-01-01

    3D model reconstruction of marine structures, such as dams, oil-rigs, and sea caves, is both important and challenging. An important application includes structural inspection. Manual inspection of marine structures is ...

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

    E-Print Network [OSTI]

    Raffle, Hayes Solos, 1974-

    2004-01-01

    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 ...

  20. Development of an embedded 3D graphics processor 

    E-Print Network [OSTI]

    Murray, Brian

    2002-01-01

    Limitations in processing ability cause major graphical enhancements, such as support for real-time 3D graphics, to be next to impossible within embedded devices. Due to the size, power, and heat dissipation requirements, modern graphics hardware...

  1. An alternative derivation of the Minimal massive 3D gravity

    E-Print Network [OSTI]

    Ahmet Baykal

    2014-12-23

    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.

  2. 3-D Extensions for Trustworthy Systems (Invited Paper)

    E-Print Network [OSTI]

    Kastner, Ryan

    , and passive monitoring for mass- produced processors. In our basic paradigm, a 3-D chip consists of one die combined with a control plane housing application-specific security functions; (2) physical isolation

  3. Texture splats for 3D vector and scalar field visualization

    SciTech Connect (OSTI)

    Crawfis, R.A.; Max, N.

    1993-04-06

    Volume Visualization is becoming an important tool for understanding large 3D datasets. A popular technique for volume rendering is known as splatting. With new hardware architectures offering substantial improvements in the performance of rendering texture mapped objects, we present textured splats. An ideal reconstruction function for 3D signals is developed which can be used as a texture map for a splat. Extensions to the basic splatting technique are then developed to additionally represent vector fields.

  4. Structure and Dynamics of Polymer Nanocomposites by Grazing-Incidence...

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

    Structure and Dynamics of Polymer Nanocomposites by Grazing-Incidence X-Ray Techniques (Presentation) Structure and Dynamics of Polymer Nanocomposites by Grazing-Incidence X-Ray...

  5. Nanocomposite Materials for Lithium-Ion Batteries | Department...

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

    Nanocomposite Materials for Lithium-Ion Batteries Nanocomposite Materials for Lithium-Ion Batteries nanocompositematerialsliion.pdf More Documents & Publications Progress of DOE...

  6. Bio-inspired nanocomposite assemblies as smart skin components...

    Office of Scientific and Technical Information (OSTI)

    Bio-inspired nanocomposite assemblies as smart skin components. Citation Details In-Document Search Title: Bio-inspired nanocomposite assemblies as smart skin components. There is...

  7. Nanocomposite of graphene and metal oxide materials | OSTI, US...

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

    Nanocomposite of graphene and metal oxide materials Re-direct Destination: Nanocomposite materials comprising a metal oxide bonded to at least one graphene material. The...

  8. Los Alamos researchers uncover new properties in nanocomposite...

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

    New properties in nanocomposite oxide ceramics Los Alamos researchers uncover new properties in nanocomposite oxide ceramics for reactor fuel, fast-ion conductors In a...

  9. 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

  10. High performance thermoelectric nanocomposite device

    DOE Patents [OSTI]

    Yang, Jihui (Lakeshore, CA); Snyder, Dexter D. (Birmingham, MI)

    2011-10-25

    A thermoelectric device includes a nanocomposite material with nanowires of at least one thermoelectric material having a predetermined figure of merit, the nanowires being formed in a porous substrate having a low thermal conductivity and having an average pore diameter ranging from about 4 nm to about 300 nm.

  11. 2D?3D polycatenated and 3D?3D interpenetrated metal–organic frameworks constructed from thiophene-2,5-dicarboxylate and rigid bis(imidazole) ligands

    SciTech Connect (OSTI)

    Erer, Hakan; Ye?ilel, Okan Zafer; Ar?c?, Mürsel; Keskin, Seda; Büyükgüngör, Orhan

    2014-02-15

    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.

  12. Nanocomposite Materials for Lithium-Ion Batteries

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

    abuse tolerant lithium-ion (Li-ion) batteries is an important step in electrifying the drive train and facilitating widespread adoption of HEVs and PHEVs. Nanocomposite...

  13. Analysis results from the Los Alamos 2D/3D program

    SciTech Connect (OSTI)

    Boyack, B.E.; Cappiello, M.W.; Harmony, S.C.; Shire, P.R.; Siebe, D.A.

    1987-01-01

    Los Alamos National Laboratory is a participant in the 2D/3D program. Activities conducted at Los Alamos National Laboratory in support of 2D/3D program goals include analysis support of facility design, construction, and operation; provision of boundary and initial conditions for test-facility operations based on analysis of pressurized water reactors; performance of pretest and posttest predictions and analyses; and use of experimental results to validate and assess the single- and multi-dimensional, nonequilibrium features in the Transient Reactor Analysis Code (TRAC). During fiscal year 1987, Los Alamos conducted analytical assessment activities using data from the Slab Core Test Facility, The Cylindrical Core Test Facility, and the Upper Plenum Test Facility. Finally, Los Alamos continued work to provide TRAC improvements. In this paper, Los Alamos activities during fiscal year 1987 will be summarized; several significant accomplishments will be described in more detail to illustrate the work activities at Los Alamos.

  14. Automatically Creating Design Models from 3D Anthropometry Data

    E-Print Network [OSTI]

    Wuhrer, Stefanie; Bose, Prosenjit

    2011-01-01

    When designing a product that needs to fit the human shape, designers often use a small set of 3D models, called design models, either in physical or digital form, as representative shapes to cover the shape variabilities of the population for which the products are designed. Until recently, the process of creating these models has been an art involving manual interaction and empirical guesswork. The availability of the 3D anthropometric databases provides an opportunity to create design models optimally. In this paper, we propose a novel way to use 3D anthropometric databases to generate design models that represent a given population for design applications such as the sizing of garments and gear. We generate the representative shapes by solving a covering problem in a parameter space. Well-known techniques in computational geometry are used to solve this problem. We demonstrate the method using examples in designing glasses and helmets.

  15. Convex-Based Thermal Management for 3D MPSoCs Using DVFS and Variable-Flow Liquid Cooling

    E-Print Network [OSTI]

    De Micheli, Giovanni

    Convex-Based Thermal Management for 3D MPSoCs Using DVFS and Variable-Flow Liquid Cooling Francesco multi-processors system on chip (MPSoCs) using microfluidic cooling. The controller uses dynamic volt consumption+cooling power consumption). Our experimental results illustrate that our policy satis- fies

  16. Real-Time, Non-Contact Plant Growth Monitoring at Microscopic Levels using 3D Laser Scanner.

    E-Print Network [OSTI]

    Barron, John

    Real-Time, Non-Contact Plant Growth Monitoring at Microscopic Levels using 3D Laser Scanner. M differential inspection techniques applied to plant growth monitoring. Experimental results shows growth rate of detailed plants and leaves motion. Such studies have been made on single or few leaves at a time

  17. 3 July 2003 HIRES3D -ITC Research Seminar -Robert Hack 1 HIGH RESOLUTION REMOTE SENSING

    E-Print Network [OSTI]

    Hack, Robert

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

  18. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril351 Substation Demolition --3D Printed3D

  19. Nanocrystal-polymer nanocomposite electrochromic device

    DOE Patents [OSTI]

    Milliron, Delia; Runnerstrom, Evan; Helms, Brett; Llordes, Anna; Buonsanti, Raffaella; Garcia, Guillermo

    2015-12-08

    Described is an electrochromic nanocomposite film comprising a solid matrix of an oxide based material, the solid matrix comprising a plurality of transparent conducting oxide (TCO) nanostructures dispersed in the solid matrix and a lithium salt dispersed in the solid matrix. Also described is a near infrared nanostructured electrochromic device having a functional layer comprising the electrochromic nanocomposite film.

  20. Nanocomposite of graphene and metal oxide materials

    DOE Patents [OSTI]

    Liu, Jun; Aksay, Ilhan A.; Choi, Daiwon; Wang, Donghai; Yang, Zhenguo

    2012-09-04

    Nanocomposite materials comprising a metal oxide bonded to at least one graphene material. The nanocomposite materials exhibit a specific capacity of at least twice that of the metal oxide material without the graphene at a charge/discharge rate greater than about 10C.

  1. Nanocomposite of graphene and metal oxide materials

    DOE Patents [OSTI]

    Liu, Jun; Aksay, Ilhan A.; Choi, Daiwon; Wang, Donghai; Yang, Zhenguo

    2013-10-15

    Nanocomposite materials comprising a metal oxide bonded to at least one graphene material. The nanocomposite materials exhibit a specific capacity of at least twice that of the metal oxide material without the graphene at a charge/discharge rate greater than about 10 C.

  2. 3-D Interpretation of Sewer Circular Structures Marina Kolesnik,

    E-Print Network [OSTI]

    Kolesnik, Marina

    3-D Interpretation of Sewer Circular Structures Marina Kolesnik, Institute for Autonomous interpretation of images taken in a sewer by a robot-inspector is presented. Modern sewers made of concrete sections. These pipe ends and joints provide regular marks on the sewer images and can be used for their 3

  3. Generic Programming in 3D Ralf Hinze a

    E-Print Network [OSTI]

    Löh, Andres

    Generic Programming in 3D Ralf Hinze a , Andres L¨oh b aInstitut f¨ur Informatik III, Universit mechanism is not restricted to equality: parsers, pretty-printers and several other functions are derivable: Haskell's pretty-printer, for instance, displays pairs and lists using a special mix-fix notation. If we

  4. Noise in 3D Laser Range Scanner Data Xianfang Sun

    E-Print Network [OSTI]

    Martin, Ralph R.

    Noise in 3D Laser Range Scanner Data Xianfang Sun Cardiff University, UK Beihang University, China University, UK Abstract This paper discusses noise in range data measured by a Konica Mi- nolta Vivid 910 Gaussian noise, which is independently distributed at each mesh point. Measure- ments of an accurately

  5. POSTER: Duct tracking in 3D medical data Martin Petrcek

    E-Print Network [OSTI]

    Pelikan, Josef

    POSTER: Duct tracking in 3D medical data Martin Petrícek Faculty of Mathematics and Physics Charles 2, 180 81 Praha 8 - Liben Czech Republic martin.horak@volny.cz ABSTRACT Implementing duct tracking interaction when selecting duct branches of interest or correcting possible mistakes in duct path segmentation

  6. EARS: Toward Fast Analysis of 3D Human

    E-Print Network [OSTI]

    State University 7171 E. Sonaran Arroyo Mall, Mesa, AZ 85212, USA 2. Brian.Corner@us.army.mil Ergonomics, visualize, and evaluate the geometric information of a 3D human body scan. To the best of our knowledge, EARS is the first complete system dedicated to fast evaluation and analysis of the quality of a human

  7. ORIGINAL PAPER Current and Future Applications of 3-D Global

    E-Print Network [OSTI]

    Simpson, Jamesina J.

    ORIGINAL PAPER Current and Future Applications of 3-D Global Earth-Ionosphere Models Based the world. Earth-iono- sphere models employing FDTD pose significant advantages over any other current-ionosphere system modeling is not so much in the computational technique itself, or in the availability of massively

  8. Exposing Digital Forgeries From 3-D Lighting Environments

    E-Print Network [OSTI]

    Bucci, David J.

    Exposing Digital Forgeries From 3-D Lighting Environments Eric Kee 1 , Hany Farid 2 Department@cs.dartmouth.edu Abstract--When creating a photographic composite, it can be difficult to match lighting conditions. We describe a technique for measuring lighting conditions in an image, and describe its use in detecting

  9. Microbiol Monogr (3) D. Schler: Magnetoreception and Magnetosomes in Bacteria

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    Microbiol Monogr (3) D. Schüler: Magnetoreception and Magnetosomes in Bacteria DOI 10 Abstract Magnetotactic bacteria can be regarded as model systems for studying the struc- tural, chemical Introduction Magnetotactic bacteria contain intracellular ferrimagnetic crystals that are typically 30­120 nm

  10. Reversible vectorisation of 3D digital planar curves and applications

    E-Print Network [OSTI]

    Sivignon, Isabelle

    Reversible vectorisation of 3D digital planar curves and applications Isabelle Sivignon a,, Florent the problem of the computation of a planar polygonal curve from a digital planar curve, such that the digital data can be exactly retrieved from the polygonal curve. The proposed transformation also provides

  11. REAL TIME ACQUISITION AND RENDERING OF LARGE 3D MODELS

    E-Print Network [OSTI]

    Rusinkiewicz, Szymon

    OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Szymon Marek Rusinkiewicz August 2001 #12;ii c Copyright grid, and point (splat) rendering is used to provide a real-time display of the partial 3D model. Given, backface culling, level-of-detail control, and splat rendering. The system may also be extended

  12. WATERMARKING 3D MODELS Thomas Harte and Adrian G. Bors

    E-Print Network [OSTI]

    Bors, Adrian

    - ing audio data, still images, or video [1, 2, 3]. While audio data consists of one-dimensional time varying signals, images are 2-D mappings of digital data distributed on a rectangular lattice. When. A copyright protection watermarking algorithm employing modifications in the histograms of 3D object surface

  13. Cyclic Cellular Automata in 3D Clifford A. Reiter

    E-Print Network [OSTI]

    Reiter, Clifford A.

    Cyclic Cellular Automata in 3D Clifford A. Reiter Department of Mathematics, Lafayette College, Easton, PA 18042 U.S.A reiterc@lafayette.edu Abstract Cyclic cellular automata in two dimensions have this work to three dimensional cyclic cellular automata and observe self organization dependent upon

  14. Vacuum Compatibility of 3D-Printed Materials

    E-Print Network [OSTI]

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

    2013-01-01

    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.

  15. 3D Painting on Scanned Surfaces Maneesh Agrawala

    E-Print Network [OSTI]

    Agrawala, Maneesh

    3D Painting on Scanned Surfaces Maneesh Agrawala Andrew C. Beers Marc Levoy Computer Science Department Stanford University Abstract We present an intuitive interface for painting on unparameterized for painting on the mesh, making it intuitive and easy to accurately place color on the mesh. CR categories: 1

  16. ELECTROMOTION 2009 3D Analytical Calculation of Forces between

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Co or NdFeB, the designers can use magnets owning a really rigid magnetization. They are the magnets whichELECTROMOTION 2009 1 3D Analytical Calculation of Forces between Linear Halbach-Type Permanent Magnet Arrays H. Allag1,2 , J-P. Yonnet1 and M. E. H. Latreche2 1- Laboratoire de Génie Electrique de

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

    E-Print Network [OSTI]

    2015-01-01

    15) The precision of 3D printers has been closely evaluatedmaterial substrates for 3D printers. It is not approved pertheir treatment. While 3D printers with the capability to

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

    E-Print Network [OSTI]

    2015-01-01

    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

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

    E-Print Network [OSTI]

    Chia, Helena

    2014-01-01

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

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

    E-Print Network [OSTI]

    Chia, Helena

    2014-01-01

    learned a lot about 3D printing and myself in this processderived microstructures by 3D printing: bio-and structuralScaffold development using 3D printing with a starch-based

  1. RELAP5-3D Developer Guidelines and Programming Practices

    SciTech Connect (OSTI)

    Dr. George L Mesina

    2014-03-01

    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.

  2. Kinetic modelling of a surrogate diesel fuel applied to 3D auto-ignition in HCCI engines

    E-Print Network [OSTI]

    Bounaceur, Roda; Fournet, René; Battin-Leclerc, Frédérique; Jay, S; Da Cruz, A Pires

    2007-01-01

    The prediction of auto-ignition delay times in HCCI engines has risen interest on detailed chemical models. This paper described a validated kinetic mechanism for the oxidation of a model Diesel fuel (n-decane and ?-methylnaphthalene). The 3D model for the description of low and high temperature auto-ignition in engines is presented. The behavior of the model fuel is compared with that of n-heptane. Simulations show that the 3D model coupled with the kinetic mechanism can reproduce experimental HCCI and Diesel engine results and that the correct modeling of auto-ignition in the cool flame region is essential in HCCI conditions.

  3. A fast algorithm for gamma evaluation in 3D

    SciTech Connect (OSTI)

    Wendling, Markus; Zijp, Lambert J.; McDermott, Leah N.; Smit, Ewoud J.; Sonke, Jan-Jakob; Mijnheer, Ben J.; Herk, Marcel van [Department of Radiation Oncology, Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam (Netherlands)

    2007-05-15

    The {gamma}-evaluation method is a tool by which dose distributions can be compared in a quantitative manner combining dose-difference and distance-to-agreement criteria. Since its introduction, the {gamma} evaluation has been used in many studies and is on the verge of becoming the preferred dose distribution comparison method, particularly for intensity-modulated radiation therapy (IMRT) verification. One major disadvantage, however, is its long computation time, which especially applies to the comparison of three-dimensional (3D) dose distributions. We present a fast algorithm for a full 3D {gamma} evaluation at high resolution. Both the reference and evaluated dose distributions are first resampled on the same grid. For each point of the reference dose distribution, the algorithm searches for the best point of agreement according to the {gamma} method in the evaluated dose distribution, which can be done at a subvoxel resolution. Speed, computer memory efficiency, and high spatial resolution are achieved by searching around each reference point with increasing distance in a sphere, which has a radius of a chosen maximum search distance and is interpolated 'on-the-fly' at a chosen sample step size. The smaller the sample step size and the larger the differences between the dose distributions, the longer the {gamma} evaluation takes. With decreasing sample step size, statistical measures of the 3D {gamma} distribution converge. Two clinical examples were investigated using 3% of the prescribed dose as dose-difference and 0.3 cm as distance-to-agreement criteria. For 0.2 cm grid spacing, the change in {gamma} indices was negligible below a sample step size of 0.02 cm. Comparing the full 3D {gamma} evaluation and slice-by-slice 2D {gamma} evaluations ('2.5D') for these clinical examples, the {gamma} indices improved by searching in full 3D space, with the average {gamma} index decreasing by at least 8%.

  4. Design of 3D eye-safe middle range vibrometer

    SciTech Connect (OSTI)

    Polulyakh, Valeriy; Poutivski, Iouri

    2014-05-27

    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.

  5. 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...

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

    Office of Environmental Management (EM)

    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...

  7. Scanning cross-correlator for monitoring uniform 3D ellipsoidal laser beams

    SciTech Connect (OSTI)

    Zelenogorskii, V V; Andrianov, A V; Gacheva, E I; Gelikonov, G V; Mironov, S Yu; Potemkin, A K; Khazanov, E A; Krasilnikov, M; Stephan, F; Mart'yanov, M A; Syresin, E M

    2014-01-31

    The specific features of experimental implementation of a cross-correlator with a scan rate above 1600 cm s{sup -1} and a spatial delay amplitude of more than 15 mm are considered. The possibility of measuring the width of femtosecond pulses propagating in a train 300 ?s in duration with a repetition rate of 1 MHz is demonstrated. A time resolution of 300 fs for the maximum time window of 50 ps is attained. The cross-correlator is aimed at testing 3D pulses of a laser driver of an electron photo-injector. (laser applications and other topics in quantum electronics)

  8. Electrical, electromagnetic and structural characteristics of carbon nanotube-polymer nanocomposites

    E-Print Network [OSTI]

    Park, Sung-Hoon

    2009-01-01

    S. Melt processing of SWCNT- polyimide nanocomposite fibers74] and SWNT/polyimide[75] type nanocomposites. In Situ

  9. DEVELOPMENT OF A 3D GRID, FRACTURE AND PROPERTY MODELS FOR THE UPPER FREEPORT COAL AND OVERBURDEN USING 3D

    E-Print Network [OSTI]

    Wilson, Thomas H.

    DEVELOPMENT OF A 3D GRID, FRACTURE AND PROPERTY MODELS FOR THE UPPER FREEPORT COAL AND OVERBURDEN Richard A. Bajura, Director, National Research Center for Coal and Energy, West Virginia University Park, PA. Abstract Discrete fracture networks within a CO2 injection zone (the Upper Freeport coal

  10. Pipe3D, a pipeline to analyze Integral Field Spectroscopy data: I. New fitting phylosophy of FIT3D

    E-Print Network [OSTI]

    Sánchez, S F; Sánchez-Blázquez, P; González, J J; Rosález-Ortega, F F; Cano-Díaz, M; López-Cobá, C; Marino, R A; de Paz, A Gil; Mollá, M; López-Sánchez, A R; Ascasibar, Y; Barrera-Ballesteros, J

    2015-01-01

    We present an improved version of FIT3D, a fitting tool for the analysis of the spectroscopic properties of the stellar populations and the ionized gas derived from moderate resolution spectra of galaxies. FIT3D is a tool developed to analyze Integral Field Spectroscopy data and it is the basis of Pipe3D, a pipeline already used in the analysis of datasets like CALIFA, MaNGA, and SAMI. We describe the philosophy behind the fitting procedure, and in detail each of the different steps in the analysis. We present an extensive set of simulations in order to estimate the precision and accuracy of the derived parameters for the stellar populations. In summary, we find that using different stellar population templates we reproduce the mean properties of the stellar population (age, metallicity, and dust attenuation) within ~0.1 dex. A similar approach is adopted for the ionized gas, where a set of simulated emission- line systems was created. Finally, we compare the results of the analysis using FIT3D with those pro...

  11. 3-D MAPPING TECHNOLOGIES FOR HIGH LEVEL WASTE TANKS

    SciTech Connect (OSTI)

    Marzolf, A.; Folsom, M.

    2010-08-31

    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.

  12. Computerized fluid movement mapping and 3-D visualization

    SciTech Connect (OSTI)

    Al-Awami, A.A.; Poore, J.W. [Saudi Aramco, Dhahran (Saudi Arabia); Sizer, J.P.

    1995-11-01

    Most of the fieldwide fluid movement monitoring techniques under utilize available computer resources. This paper discusses an approach reservoir management engineers use to monitor fluid movement in reservoirs with a multitude of wells. This approach allows the engineer to maintain up-to-date fluid movement studies and incorporate the latest information from data acquisition programs into the day to day decision-making process. The approach uses several in-house database applications and makes extensive use of commercially available software products to generate and visualize cross-sections, maps, and 3-d models. This paper reviews the computerized procedures to create cross-sections that display the current fluid contacts overlaying the lithology. It also reviews the mapping procedures nd presents examples of water encroachment maps by layer at specific time periods. 3-D geologic modeling software greatly enhances the visualization of the reservoir. This software can also be used to interpret and model fluid movement, given the appropriate engineering constraints.

  13. 3D supergravity from wrapped M5-branes

    E-Print Network [OSTI]

    Karndumri, Parinya

    2015-01-01

    Through consistent Kaluza-Klein reduction, we construct 3D N=2 gauged supergravities corresponding to twisted compactifications of M5-branes on a product of Riemann surfaces, including Kahler-Einstein four-manifolds. We extend the reduction to fermionic supersymmetry variations in order to determine the 3D Killing spinor equations and classify all (timelike) supersymmetric solutions. We show that the superpotential T dictates all supersymmetric solutions, not just AdS3 vacua. As a by-product, we identify an infinite class of new supersymmetric warped AdS3 (Godel) and warped dS3 critical points. Moreover, we show that T encodes the central charge and R symmetry of the dual N = (0,2) SCFTs in the large N limit. Upon uplift to 11D, we use this result to write the higher-dimensional geometries in canonical form and discuss the relation to existing classifications of supersymmetric AdS3 geometries.

  14. Sculplexity: Sculptures of Complexity using 3D printing

    E-Print Network [OSTI]

    Reiss, D S; Evans, T S

    2014-01-01

    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.

  15. Towards manipulating relativistic laser pulses with 3D printed materials

    E-Print Network [OSTI]

    Ji, L L; Pukhov, A; Freeman, R R; Akli, K U

    2015-01-01

    Efficient coupling of intense laser pulses to solid-density matter is critical to many applications including ion acceleration for cancer therapy. At relativistic intensities, the focus has been mainly on investigating various laser beams irradiating initially flat interfaces with little or no control over the interaction. Here, we propose a novel approach that leverages recent advancements in 3D direct laser writing (DLW) of materials and high contrast lasers to manipulate the laser-matter interactions on the micro-scales. We demonstrate, via simulations, that usable intensities >10^23Wcm^(-2) could be achieved with current tabletop lasers coupled to 3D printed plasma lenses. We show that these plasma optical elements act not only as a lens to focus laser light, but also as an electromagnetic guide for secondary particle beams. These results open new paths to engineering light-matter interactions at ultra-relativistic intensities.

  16. Multimessengers from 3D Core-Collapse Supernovae

    E-Print Network [OSTI]

    Yakunin, Konstantin N; Mezzacappa, Anthony; Messer, O E Bronson; Lentz, Eric J; Bruenn, Stephen W; Hix, W Rafael; Harris, J Austin

    2015-01-01

    We present gravitational wave and neutrino signatures obtained in our first principle 3D core-collapse supernova simulation of 15M non-rotating progenitor with Chimera code. Observations of neutrinos emitted by the forming neutron star, and gravitational waves, which are produced by hydrodynamic instabilities is the only way to get direct information about the supernova engine. Both GW and neutrino signals show different phases of supernova evolution.

  17. 3D, Flash, Induced Current Readout for Silicon Sensors

    SciTech Connect (OSTI)

    Parker, Sherwood I.

    2014-06-07

    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

  18. On the Hamiltonian form of 3D massive gravity

    E-Print Network [OSTI]

    Olaf Hohm; Alasdair Routh; Paul K. Townsend; Baocheng Zhang

    2012-09-14

    We present a "Chern-Simons-like" action for the "general massive gravity" model propagating two spin-2 modes with independent masses in three spacetime dimensions (3D), and we use it to find a simple Hamiltonian form of this model. The number of local degrees of freedom, determined by the dimension of the physical phase space, agrees with a linearized analysis except in some limits, in particular that yielding "new topologically massive gravity", which therefore suffers from a linearization instability.

  19. 3D acoustic imaging applied to the Baikal Neutrino Telescope

    E-Print Network [OSTI]

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

    2008-11-07

    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.

  20. A simulation technique for 3D MR-guided acoustic radiation force imaging

    SciTech Connect (OSTI)

    Payne, Allison; Bever, Josh de; Farrer, Alexis; Coats, Brittany; Parker, Dennis L.; Christensen, Douglas A.

    2015-02-15

    Purpose: In magnetic resonance-guided focused ultrasound (MRgFUS) therapies, the in situ characterization of the focal spot location and quality is critical. MR acoustic radiation force imaging (MR-ARFI) is a technique that measures the tissue displacement caused by the radiation force exerted by the ultrasound beam. This work presents a new technique to model the displacements caused by the radiation force of an ultrasound beam in a homogeneous tissue model. Methods: When a steady-state point-source force acts internally in an infinite homogeneous medium, the displacement of the material in all directions is given by the Somigliana elastostatic tensor. The radiation force field, which is caused by absorption and reflection of the incident ultrasound intensity pattern, will be spatially distributed, and the tensor formulation takes the form of a convolution of a 3D Green’s function with the force field. The dynamic accumulation of MR phase during the ultrasound pulse can be theoretically accounted for through a time-of-arrival weighting of the Green’s function. This theoretical model was evaluated experimentally in gelatin phantoms of varied stiffness (125-, 175-, and 250-bloom). The acoustic and mechanical properties of the phantoms used as parameters of the model were measured using independent techniques. Displacements at focal depths of 30- and 45-mm in the phantoms were measured by a 3D spin echo MR-ARFI segmented-EPI sequence. Results: The simulated displacements agreed with the MR-ARFI measured displacements for all bloom values and focal depths with a normalized RMS difference of 0.055 (range 0.028–0.12). The displacement magnitude decreased and the displacement pattern broadened with increased bloom value for both focal depths, as predicted by the theory. Conclusions: A new technique that models the displacements caused by the radiation force of an ultrasound beam in a homogeneous tissue model theory has been rigorously validated through comparison with experimentally obtained 3D displacement data in homogeneous gelatin phantoms using a 3D MR-ARFI sequence. The agreement of the experimentally measured and simulated results demonstrates the potential to use MR-ARFI displacement data in MRgFUS therapies.

  1. Modeling The Shock Initiation of PBX-9501 in ALE3D

    SciTech Connect (OSTI)

    Leininger, L; Springer, H K; Mace, J; Mas, E

    2008-07-01

    The SMIS (Specific Munitions Impact Scenario) experimental series performed at Los Alamos National Laboratory has determined the 3-dimensional shock initiation behavior of the HMX-based heterogeneous high explosive, PBX 9501. A series of finite element impact calculations have been performed in the ALE3D [1] hydrodynamic code and compared to the SMIS results to validate the code predictions. The SMIS tests use a powder gun to shoot scaled NATO standard fragments at a cylinder of PBX 9501, which has a PMMA case and a steel impact cover. The SMIS real-world shot scenario creates a unique test-bed because many of the fragments arrive at the impact plate off-center and at an angle of impact. The goal of this model validation experiments is to demonstrate the predictive capability of the Tarver-Lee Ignition and Growth (I&G) reactive flow model [2] in this fully 3-dimensional regime of Shock to Detonation Transition (SDT). The 3-dimensional Arbitrary Lagrange Eulerian hydrodynamic model in ALE3D applies the Ignition and Growth (I&G) reactive flow model with PBX 9501 parameters derived from historical 1-dimensional experimental data. The model includes the off-center and angle of impact variations seen in the experiments. Qualitatively, the ALE3D I&G calculations accurately reproduce the 'Go/No-Go' threshold of the Shock to Detonation Transition (SDT) reaction in the explosive, as well as the case expansion recorded by a high-speed optical camera. Quantitatively, the calculations show good agreement with the shock time of arrival at internal and external diagnostic pins. This exercise demonstrates the utility of the Ignition and Growth model applied in a predictive fashion for the response of heterogeneous high explosives in the SDT regime.

  2. Spheree: A 3D Perspective-Corrected Interactive Spherical Scalable Display Ferreira, F.q

    E-Print Network [OSTI]

    British Columbia, University of

    models can be exported or printed on a 3D printer. Other related 3D displays include: 1. pCubee [StavnessSpheree: A 3D Perspective-Corrected Interactive Spherical Scalable Display Ferreira, F.q , Cabral & U of British Columbia (a) (b) (c) (d) Figure 1: (a) A snowglobe; (b) a fish-tank animation; (c) a 3D

  3. Voxel-Based Assessment of Printability of 3D Alexandru Telea1

    E-Print Network [OSTI]

    Telea, Alexandru C.

    . Printability, the capability of a 3D printer to closely repro- duce a 3D model, is a complex decision involving on a given printer. As 3D printing technology works in a raster fashion, we implement our proposed metricsVoxel-Based Assessment of Printability of 3D Shapes Alexandru Telea1 and Andrei Jalba2 1 Institute

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

    E-Print Network [OSTI]

    Schindler, Konrad

    AUTOMATED MODELING OF 3D BUILDING ROOFS USING IMAGE AND LIDAR DATA N. Demir* , E. Baltsavias, Detection, 3D Modelling ABSTRACT: In this work, an automated approach for 3D building roof modelling of accurate and complete 3D building models with high degree of automation. Aerial images and LiDAR data

  5. Experience with 3D Optical Flow on Gated MRI Cardiac Datasets

    E-Print Network [OSTI]

    Barron, John

    ventricular chamber which pumps oxygenated blood to the body, as these are good indicators of heart function of points on a surface while generic 3D optical ow is 3D volumetric motion. We present two sim- ple contain 20 volumes of 3D volumetric data for one synchronized heart beat, with each 3D vol- ume dataset

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

    E-Print Network [OSTI]

    2015-01-01

    biocompatible, thermoplastic, 3D printing material, for useterpolymers family of thermoplastics that are made of three

  7. Towards 3D Internet: Why, What, and How? Tansu Alpcan, Christian Bauckhage, Evangelos Kotsovinos

    E-Print Network [OSTI]

    Alpcan, Tansu

    Towards 3D Internet: Why, What, and How? Tansu Alpcan, Christian Bauckhage, Evangelos Kotsovinos paradigm, the 3D Internet. We provide an overview of the concept 3D Internet and discuss why it is a goal communities. We explore first the motivation for the 3D Internet and the possibilities it brings. Subsequently

  8. ILLUSTRATING MATHEMATICS USING 3D PRINTERS OLIVER KNILL AND ELIZABETH SLAVKOVSKY

    E-Print Network [OSTI]

    Knill, Oliver

    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

  9. A coarse-grained model with implicit salt for RNAs: Predicting 3D structure, stability and salt effect

    SciTech Connect (OSTI)

    Shi, Ya-Zhou; Wang, Feng-Hua; Wu, Yuan-Yan; Tan, Zhi-Jie

    2014-09-14

    To bridge the gap between the sequences and 3-dimensional (3D) structures of RNAs, some computational models have been proposed for predicting RNA 3D structures. However, the existed models seldom consider the conditions departing from the room/body temperature and high salt (1M NaCl), and thus generally hardly predict the thermodynamics and salt effect. In this study, we propose a coarse-grained model with implicit salt for RNAs to predict 3D structures, stability, and salt effect. Combined with Monte Carlo simulated annealing algorithm and a coarse-grained force field, the model folds 46 tested RNAs (?45 nt) including pseudoknots into their native-like structures from their sequences, with an overall mean RMSD of 3.5 Å and an overall minimum RMSD of 1.9 Å from the experimental structures. For 30 RNA hairpins, the present model also gives the reliable predictions for the stability and salt effect with the mean deviation ? 1.0 °C of melting temperatures, as compared with the extensive experimental data. In addition, the model could provide the ensemble of possible 3D structures for a short RNA at a given temperature/salt condition.

  10. Facile synthesis of mesophase pitch/exfoliated graphite nanoplatelets nanocomposite and its application as anode materials for lithium-ion batteries

    SciTech Connect (OSTI)

    Yang Yishuang [Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 (China); Wang Chengyang, E-mail: cywang@tju.edu.c [Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 (China); Chen Mingming; Shi Zhiqiang; Zheng Jiaming [Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 (China)

    2010-09-15

    Mesophase pitch (MP)/exfoliated graphite nanoplatelets (GNPs) nanocomposite has been prepared by an efficient method with an initiation of graphite intercalation compounds (GIC). X-ray diffraction, optical microscopy, high-resolution transmission electron microscopy and scanning electron microscopy analysis techniques are used to characterize the samples. It is observed that GIC has exfoliated completely into GNPs during the formation of MP/GNPs nanocomposite and the GNPs are distributed uniformly in MP matrix, which represent a conductive path for a movement of electrons throughout the composites. Electrochemical tests demonstrate that the carbonized MP/GNPs nanocomposite displays higher capacity and better cycle performance in comparison with the pure carbonized MP. It is concluded that such a large improvement of electrochemical performance within the nanocomposite may in general be related to the enhanced electronic conductivity, which is achieved by good dispersion of GNPs within MP matrix and formation of a 3D network of GNPs. - Graphical abstract: Uniform mesophase pitch/exfoliated graphite nanoplatelets nanocomposite has been efficiently fabricated with an initiation of graphite intercalation compounds. The as-prepared composite electrode exhibited high electrochemical performance for Li-ion batteries.

  11. CONDUCTIVE POLYCARBONATE NANOCOMPOSITES with HYBRID NANOFILLERS

    E-Print Network [OSTI]

    Collins, Gary S.

    CONDUCTIVE POLYCARBONATE NANOCOMPOSITES with HYBRID NANOFILLERS Catherine Smith, Brooks Lively, Wei of polymers. Emerging technologies have demonstrated the crucial need for highly conductive polymer combination between polycarbonate (PC) and hybrid concentrations of CNT and GNP nanofillers was investigated

  12. Streamlining of the RELAP5-3D Code

    SciTech Connect (OSTI)

    Mesina, George L; Hykes, Joshua; Guillen, Donna Post

    2007-11-01

    RELAP5-3D is widely used by the nuclear community to simulate general thermal hydraulic systems and has proven to be so versatile that the spectrum of transient two-phase problems that can be analyzed has increased substantially over time. To accommodate the many new types of problems that are analyzed by RELAP5-3D, both the physics and numerical methods of the code have been continuously improved. In the area of computational methods and mathematical techniques, many upgrades and improvements have been made decrease code run time and increase solution accuracy. These include vectorization, parallelization, use of improved equation solvers for thermal hydraulics and neutron kinetics, and incorporation of improved library utilities. In the area of applied nuclear engineering, expanded capabilities include boron and level tracking models, radiation/conduction enclosure model, feedwater heater and compressor components, fluids and corresponding correlations for modeling Generation IV reactor designs, and coupling to computational fluid dynamics solvers. Ongoing and proposed future developments include improvements to the two-phase pump model, conversion to FORTRAN 90, and coupling to more computer programs. This paper summarizes the general improvements made to RELAP5-3D, with an emphasis on streamlining the code infrastructure for improved maintenance and development. With all these past, present and planned developments, it is necessary to modify the code infrastructure to incorporate modifications in a consistent and maintainable manner. Modifying a complex code such as RELAP5-3D to incorporate new models, upgrade numerics, and optimize existing code becomes more difficult as the code grows larger. The difficulty of this as well as the chance of introducing errors is significantly reduced when the code is structured. To streamline the code into a structured program, a commercial restructuring tool, FOR_STRUCT, was applied to the RELAP5-3D source files. The methodology employed follows Dijkstra's structured programming paradigm, which is based on splitting programs into sub-sections, each with single points of entry and exit and in which control is passed downward through the structure with no unconditional branches to higher levels. GO TO commands are typically avoided, since they alter the flow and control of a program’s execution by allowing a jump from one place in the routine to another. The restructuring of RELAP5-3D subroutines is complicated by several issues. The first is use of code other than standard FORTRAN77. The second is restructuring limitations of FOR_STRUCT. The third is existence of pre-compiler directives and the complication of nested directives. Techniques were developed to overcome all these difficulties and more and these are reported. By implementing these developments, all subroutines of RELAP were restructured. Measures of code improvement relative to maintenance and development are presented.

  13. 3D J-Integral Capability in Grizzly

    SciTech Connect (OSTI)

    Benjamin Spencer; Marie Backman; Pritam Chakraborty; William Hoffman

    2014-09-01

    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.

  14. Uncertainty Analysis of RELAP5-3D

    SciTech Connect (OSTI)

    Alexandra E Gertman; Dr. George L Mesina

    2012-07-01

    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.

  15. Customizing mesoscale self-assembly with 3D printing

    E-Print Network [OSTI]

    M. Poty; G. Lumay; N. Vandewalle

    2013-10-17

    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.

  16. Convergence of Ginzburg-Landau functionals in 3-d superconductivity

    E-Print Network [OSTI]

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

    2011-02-23

    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.

  17. A non-conforming 3D spherical harmonic transport solver

    SciTech Connect (OSTI)

    Van Criekingen, S.

    2006-07-01

    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)

  18. 3-D HYDRODYNAMIC MODELING IN A GEOSPATIAL FRAMEWORK

    SciTech Connect (OSTI)

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

    2006-08-24

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

  19. 3-D Earth model more accurately pinpoints explosions

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril 30,University RegistrationNeed2 2D7P D3,3-D

  20. 3D Printing Aircraft Parts | GE Global Research

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril351 Substation Demolition --3D Printed andD

  1. 3D Printing Medical Devices | GE Global Research

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril351 Substation Demolition --3D Printed

  2. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-InspiredAtmosphericdevicesPPONeApril351 Substation Demolition --3D

  3. 3-D Nanofilm Asymmetric Ultracapacitor | Department of Energy

    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:Financing ToolInternationalReportOffice | DepartmentVery1, in: A.R. Gavaskar and3-D Nanofilm

  4. How 3D Printers Work | 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.Food Drive HolidayHours UsedFire 1 in 3Households3D

  5. 3D Printing a Classic Shelby Cobra | Department of Energy

    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 DataEnergy Webinar: Demonstration ofDepartment1of5Department of Energy3D

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

    E-Print Network [OSTI]

    Abu-Mostafa, Yaser S.

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

  7. ASIC for High Rate 3D Position Sensitive Detectors

    SciTech Connect (OSTI)

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

    2010-06-16

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

  8. Image Appraisal for 2D and 3D Electromagnetic Inversion

    SciTech Connect (OSTI)

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

    1999-01-28

    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.

  9. AUTOMATED, HIGHLY ACCURATE VERIFICATION OF RELAP5-3D

    SciTech Connect (OSTI)

    George L Mesina; David Aumiller; Francis Buschman

    2014-07-01

    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.

  10. THE THOMSON SURFACE. III. TRACKING FEATURES IN 3D

    SciTech Connect (OSTI)

    Howard, T. A.; DeForest, C. E.; Tappin, S. J.; Odstrcil, D.

    2013-03-01

    In this, the final installment in a three-part series on the Thomson surface, we present simulated observations of coronal mass ejections (CMEs) observed by a hypothetical polarizing white light heliospheric imager. Thomson scattering yields a polarization signal that can be exploited to locate observed features in three dimensions relative to the Thomson surface. We consider how the appearance of the CME changes with the direction of trajectory, using simulations of a simple geometrical shape and also of a more realistic CME generated using the ENLIL model. We compare the appearance in both unpolarized B and polarized pB light, and show that there is a quantifiable difference in the measured brightness of a CME between unpolarized and polarized observations. We demonstrate a technique for using this difference to extract the three-dimensional (3D) trajectory of large objects such as CMEs. We conclude with a discussion on how a polarizing heliospheric imager could be used to extract 3D trajectory information about CMEs or other observed features.

  11. A generic semi-implicit coupling methodology for use in RELAP5-3D{copyright}

    SciTech Connect (OSTI)

    Aumiller, D.L.; Tomlinson, E.T.; Weaver, W.L.

    2000-09-01

    A generic semi-implicit coupling methodology has been developed and implemented in the RELAP5-3D{copyright} computer program. This methodology allows RELAP5-3D{copyright} to be used with other computer programs to perform integrated analyses of nuclear power reactor systems and related experimental facilities. The coupling methodology potentially allows different programs to be used to model different portions of the system. The programs are chosen based on their capability to model the phenomena that are important in the simulation in the various portions of the system being considered. The methodology was demonstrated using a test case in which the test geometry was divided into two parts each of which was solved as a RELAP5-3D{copyright} simulation. This test problem exercised all of the semi-implicit coupling features which were installed in RELAP5-3D0. The results of this verification test case show that the semi-implicit coupling methodology produces the same answer as the simulation of the test system as a single process.

  12. Validation of the BISON 3D Fuel Performance Code: Temperature Comparisons for Concentrically and Eccentrically Located Fuel Pellets

    SciTech Connect (OSTI)

    J. D. Hales; D. M. Perez; R. L. Williamson; S. R. Novascone; B. W. Spencer

    2013-03-01

    BISON is a modern finite-element based nuclear fuel performance code that has been under development at the Idaho National Laboratory (USA) since 2009. The code is applicable to both steady and transient fuel behaviour and is used to analyse either 2D axisymmetric or 3D geometries. BISON has been applied to a variety of fuel forms including LWR fuel rods, TRISO-coated fuel particles, and metallic fuel in both rod and plate geometries. Code validation is currently in progress, principally by comparison to instrumented LWR fuel rods. Halden IFA experiments constitute a large percentage of the current BISON validation base. The validation emphasis here is centreline temperatures at the beginning of fuel life, with comparisons made to seven rods from the IFA-431 and 432 assemblies. The principal focus is IFA-431 Rod 4, which included concentric and eccentrically located fuel pellets. This experiment provides an opportunity to explore 3D thermomechanical behaviour and assess the 3D simulation capabilities of BISON. Analysis results agree with experimental results showing lower fuel centreline temperatures for eccentric fuel with the peak temperature shifted from the centreline. The comparison confirms with modern 3D analysis tools that the measured temperature difference between concentric and eccentric pellets is not an artefact and provides a quantitative explanation for the difference.

  13. Measurements of stress fields near a grain boundary: Exploring blocked arrays of dislocations in 3D

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Guo, Y.; Collins, D. M.; Tarleton, E.; Hofmann, F.; Tischler, J.; Liu, W.; Xu, R.; Wilkinson, A. J.; Britton, T. B.

    2015-06-24

    The interaction between dislocation pile-ups and grain boundaries gives rise to heterogeneous stress distributions when a structural metal is subjected to mechanical loading. Such stress heterogeneity leads to preferential sites for damage nucleation and therefore is intrinsically linked to the strength and ductility of polycrystalline metals. To date the majority of conclusions have been drawn from 2D experimental investigations at the sample surface, allowing only incomplete observations. Our purpose here is to significantly advance the understanding of such problems by providing quantitative measurements of the effects of dislocation pile up and grain boundary interactions in 3D. This is accomplished throughmore »the application of differential aperture X-ray Laue micro-diffraction (DAXM) and high angular resolution electron backscatter diffraction (HR-EBSD) techniques. Our analysis demonstrates a similar strain characterization capability between DAXM and HR-EBSD and the variation of stress intensity in 3D reveals that different parts of the same grain boundary may have different strengths in resisting slip transfer, likely due to the local grain boundary curvature.« less

  14. Analysis results from the Los Alamos 2D/3D program

    SciTech Connect (OSTI)

    Boyack, B.E.; Cappiello, M.W.; Stumpf, H.; Shire, P.; Gilbert, J.; Hedstrom, J.

    1986-01-01

    Los Alamos National Laboratory is a participant in the 2D/3D program. Activities conducted at Los Alamos National Laboratory in support of 2D/3D program goals include analysis support of facility design, construction, and operation; provision of boundary and initial conditions for test facility operations based on analysis of pressurized water reactors; performance of pretest and posttest predictions and analyses; and use of experimental results to validate and assess the single- and multidimensional nonequilibrium features in the Transient Reactor Analysis Code (TRAC). During Fiscal Year 1986, Los Alamos conducted analytical assessment activities using data from the Cylindrical Core Test Facility and the Slab Core Test Facility. Los Alamos also continued to provide support analysis for the planning of Upper Plenum Test Facility experiments. Finally, Los Alamos either completed or is currently working on three areas of TRAC modeling improvement. In this paper, Los Alamos activities during Fiscal Year 1986 are summarized; several significant accomplishments are described in more detail to illustrate the work activities at Los Alamos.

  15. A harmonic polynomial cell (HPC) method for 3D Laplace equation with application in marine hydrodynamics

    SciTech Connect (OSTI)

    Shao, Yan-Lin Faltinsen, Odd M.

    2014-10-01

    We propose a new efficient and accurate numerical method based on harmonic polynomials to solve boundary value problems governed by 3D Laplace equation. The computational domain is discretized by overlapping cells. Within each cell, the velocity potential is represented by the linear superposition of a complete set of harmonic polynomials, which are the elementary solutions of Laplace equation. By its definition, the method is named as Harmonic Polynomial Cell (HPC) method. The characteristics of the accuracy and efficiency of the HPC method are demonstrated by studying analytical cases. Comparisons will be made with some other existing boundary element based methods, e.g. Quadratic Boundary Element Method (QBEM) and the Fast Multipole Accelerated QBEM (FMA-QBEM) and a fourth order Finite Difference Method (FDM). To demonstrate the applications of the method, it is applied to some studies relevant for marine hydrodynamics. Sloshing in 3D rectangular tanks, a fully-nonlinear numerical wave tank, fully-nonlinear wave focusing on a semi-circular shoal, and the nonlinear wave diffraction of a bottom-mounted cylinder in regular waves are studied. The comparisons with the experimental results and other numerical results are all in satisfactory agreement, indicating that the present HPC method is a promising method in solving potential-flow problems. The underlying procedure of the HPC method could also be useful in other fields than marine hydrodynamics involved with solving Laplace equation.

  16. RELAP5-3D Restart and Backup Verification Testing

    SciTech Connect (OSTI)

    Dr. George L Mesina

    2013-09-01

    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.

  17. Exploration 3-D Seismic Field Test/Native Tribes Initiative

    SciTech Connect (OSTI)

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

    1999-04-27

    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.

  18. Shell Element Verification & Regression Problems for DYNA3D

    SciTech Connect (OSTI)

    Zywicz, E

    2008-02-01

    A series of quasi-static regression/verification problems were developed for the triangular and quadrilateral shell element formulations contained in Lawrence Livermore National Laboratory's explicit finite element program DYNA3D. Each regression problem imposes both displacement- and force-type boundary conditions to probe the five independent nodal degrees of freedom employed in the targeted formulation. When applicable, the finite element results are compared with small-strain linear-elastic closed-form reference solutions to verify select aspects of the formulations implementation. Although all problems in the suite depict the same geometry, material behavior, and loading conditions, each problem represents a unique combination of shell formulation, stabilization method, and integration rule. Collectively, the thirty-six new regression problems in the test suite cover nine different shell formulations, three hourglass stabilization methods, and three families of through-thickness integration rules.

  19. 3D Model of the Neal Hot Springs Geothermal Area

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

    Faulds, James E.

    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.

  20. 3D imaging of semiconductor components by discrete laminography

    SciTech Connect (OSTI)

    Batenburg, K. J.; Palenstijn, W. J.; Sijbers, J.

    2014-06-19

    X-ray laminography is a powerful technique for quality control of semiconductor components. Despite the advantages of nondestructive 3D imaging over 2D techniques based on sectioning, the acquisition time is still a major obstacle for practical use of the technique. In this paper, we consider the application of Discrete Tomography to laminography data, which can potentially reduce the scanning time while still maintaining a high reconstruction quality. By incorporating prior knowledge in the reconstruction algorithm about the materials present in the scanned object, far more accurate reconstructions can be obtained from the same measured data compared to classical reconstruction methods. We present a series of simulation experiments that illustrate the potential of the approach.

  1. Modeling the GFR with RELAP5-3D

    SciTech Connect (OSTI)

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

    2005-09-01

    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.

  2. TRACE3D. Interactive Beam-Dynamics Program

    SciTech Connect (OSTI)

    Singleton, L.; Yao, C.Y.

    1993-12-01

    TRACE3D is an interactive program that calculates the envelopes of a bunched beam, including linear space-charge forces, through a user-defined system. The transport system may consist of the following elements: drift, thin lens, quadrupole, permanent magnet quadrupole, solenoid, doublet, triplet, bending magnet, edge angle (for bend), RF gap, radio-frequency-quadrupole cell, RF cavity, coupled-cavity tank, user-desired element, coordinate rotation, and identical element. The beam is represented by a 6X6 matrix defining a hyper-ellipsoid in six-dimensional phase space. The projection of this hyperellipsoid on any two-dimensional plane is an ellipse that defines the boundary of the beam in that plane.

  3. Visualizing 3D velocity fields near contour surfaces. Revision 1

    SciTech Connect (OSTI)

    Max, N.; Crawfis, R.; Grant, C.

    1994-08-08

    Vector field rendering is difficult in 3D because the vector icons overlap and hide each other. We propose four different techniques for visualizing vector fields only near surfaces. The first uses motion blurred particles in a thickened region around the surface. The second uses a voxel grid to contain integral curves of the vector field. The third uses many antialiased lines through the surface, and the fourth uses hairs sprouting from the surface and then bending in the direction of the vector field. All the methods use the graphics pipeline, allowing real time rotation and interaction, and the first two methods can animate the texture to move in the flow determined by the velocity field.

  4. 3D Model of the San Emidio Geothermal Area

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

    James E. Faulds

    2013-12-31

    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.

  5. Eigenvalue Contributon Estimator for Sensitivity Calculations with TSUNAMI-3D

    SciTech Connect (OSTI)

    Rearden, Bradley T [ORNL; Williams, Mark L [ORNL

    2007-01-01

    Since the release of the Tools for Sensitivity and Uncertainty Analysis Methodology Implementation (TSUNAMI) codes in SCALE [1], the use of sensitivity and uncertainty analysis techniques for criticality safety applications has greatly increased within the user community. In general, sensitivity and uncertainty analysis is transitioning from a technique used only by specialists to a practical tool in routine use. With the desire to use the tool more routinely comes the need to improve the solution methodology to reduce the input and computational burden on the user. This paper reviews the current solution methodology of the Monte Carlo eigenvalue sensitivity analysis sequence TSUNAMI-3D, describes an alternative approach, and presents results from both methodologies.

  6. Automating the determination of 3D protein structure

    SciTech Connect (OSTI)

    Rayl, K.D.

    1993-12-31

    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.

  7. 3D Model of the Neal Hot Springs Geothermal Area

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

    Faulds, James E.

    2013-12-31

    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.

  8. 3D Model of the San Emidio Geothermal Area

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

    James E. Faulds

    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.

  9. NOVEL NANOCOMPOSITE MEMBRANE STRUCTURES FOR H2 SEPARATIONS

    SciTech Connect (OSTI)

    Benny D. Freeman

    2005-03-31

    This report explores possible methods of improving CO{sub 2} selectivity in polymer based membranes. The first method investigated using basic nanoparticles to enhance the solubility of acid gases in nanocomposite membranes, thus enhancing the overall acid gas/light gas selectivity (e.g., CO{sub 2}/H{sub 2}, CO{sub 2}/CH{sub 4}, etc.). The influence of nanoparticle surface chemistry on nanocomposite morphology and transport properties will be determined experimentally in a series of poly(1-trimethylsilyl-1-propyne). Additional factors (e.g., chemical reaction of the particles with the polymers) have been considered, as necessary, during the course of the investigation. The second method investigated using polar polymers such as crosslinked poly(ethylene oxide) and poly(ether-b-amide) to improve CO{sub 2} sorption and thereby increase CO{sub 2} permeability and CO{sub 2}/light gas selectivity. For both types of materials, CO{sub 2} and light gas permeabilities have been characterized. The overall objective was to improve the understanding of materials design strategies to improve acid gas transport properties of membranes.

  10. 3D Relationships Between Sills And Their Feeders- Evidence From...

    Open Energy Info (EERE)

    the elliptical development of the GVS. To test this hypothesis, we present preliminary results of experimental modelling of sill emplacement, in which we vary the shape of the...

  11. DYNA3D: A nonlinear, explicit, three-dimensional finite element...

    Office of Scientific and Technical Information (OSTI)

    Service, Springfield, VA at www.ntis.gov. This report is the User Manual for the 1993 version of DYNA3D, and also serves as a User Guide. DYNA3D is a nonlinear, explicit,...

  12. Simultaneous Detection and Registration for Ileo-Cecal Valve Detection in 3D CT Colonography

    E-Print Network [OSTI]

    Barbu, Adrian

    Simultaneous Detection and Registration for Ileo-Cecal Valve Detection in 3D CT Colonography Le Lu1-Cecal Valve (ICV) detection in both clean and tagged 3D CT colonography scans. Our final ICV detection system

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

    E-Print Network [OSTI]

    Lan, Justin (Justin T.)

    2013-01-01

    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 ...

  14. Fabrication and applications of sub-micron 2D and 3D periodic...

    Office of Scientific and Technical Information (OSTI)

    Fabrication and applications of sub-micron 2D and 3D periodic carbon structures. Citation Details In-Document Search Title: Fabrication and applications of sub-micron 2D and 3D...

  15. Domain Fishing and 3D-JIGSAW: tools for protein comparative modelling

    E-Print Network [OSTI]

    Moreira, Bruno Contreras

    Domain Fishing and 3D-JIGSAW: tools for protein comparative modelling Bruno Contreras Fishing up to 7 alternative alignments #12;3D-JIGSAW Example #12;EVA: continuous evaluation of servers

  16. Statistical methods for 2D-3D registration of optical and LIDAR images

    E-Print Network [OSTI]

    Mastin, Dana Andrew

    2009-01-01

    Fusion of 3D laser radar (LIDAR) imagery and aerial optical imagery is an efficient method for constructing 3D virtual reality models. One difficult aspect of creating such models is registering the optical image with the ...

  17. 3D Geological Modelling In Bavaria - State-Of-The-Art At A State...

    Open Energy Info (EERE)

    3D Geological Modelling In Bavaria - State-Of-The-Art At A State Geological Survey Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: 3D Geological...

  18. 3D Cobra, Renewable Energy, and Green Button at the National...

    Energy Savers [EERE]

    whose design is based off of the 1965 Shelby Cobra, showcases the capabilities of 3D printing and advanced electric vehicles technology. (Click here to read more about the 3D...

  19. Interactive 3D Modeling of Indoor Environments with a Consumer Depth Camera

    E-Print Network [OSTI]

    Washington at SeattleUniversity of

    are far from accessible to average consumers. Recently, image-based 3D modeling has become feasible, with Photo Tourism [28] being a prominent example how 3D structures can be recovered by analyzing

  20. WiPrint: 3D Printing Your Wireless Coverage Author: Justin Chan

    E-Print Network [OSTI]

    WiPrint: 3D Printing Your Wireless Coverage Author: Justin Chan Advisor: Xia Zhou Dartmouth WiPrint, a novel approach to customiz- ing wireless signal maps using 3D printed glossy reflectors

  1. Application of Modern Filtering Techniques for 3D Localisation in Biological and Robotic Systems

    E-Print Network [OSTI]

    Application of Modern Filtering Techniques for 3D Localisation in Biological and Robotic Systems Application of Modern Filtering Techniques for 3D Localisation in Biological and Robotic Systems Kudah C system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Robotic system

  2. "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...

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

    Open Energy Info (EERE)

    3-D Inversion Of Borehole-To-Surface Electrical Data Using A Back-Propagation Neural Network Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: 3-D...

  4. 3-D Printed Electrically and Optically Paced Skeletal Muscle Based Biological Machines Caroline Cvetkovic, Bioengineering

    E-Print Network [OSTI]

    Kilian, Kristopher A.

    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

  5. CRYPTANALYSIS ASPECTS IN 3-D WATERMARKING V. Itier1,3

    E-Print Network [OSTI]

    Bors, Adrian

    by the expansion of new multimedia technolo- gies such as the 3-D printing. In the development of crypto- security. INTRODUCTION Because of the expansion of new technologies including mo- bile multimedia and 3-D printing

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

    E-Print Network [OSTI]

    Sung, Yongjin

    2011-01-01

    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 ...

  7. 3D microstructure modeling of compressed fiber-based Gerd Gaiselmanna,

    E-Print Network [OSTI]

    Schmidt, Volker

    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

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

    E-Print Network [OSTI]

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

    2014-01-01

    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 ...

  9. Novel 3d-4f Magnetic Intermetallic Materials by Design | The...

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

    both itinerant 3d electrons of transition metals and localized 4f electrons of rare earth metals could yield large 3d-4f exchange interactions that are prospective for many...

  10. Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life...

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

    Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life Photo Gallery: 3D Printing Brings Classic Shelby Cobra to Life April 15, 2015 - 4:02pm Addthis Zero to 60 in under...

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

    E-Print Network [OSTI]

    Keinan, Alon

    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

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

    E-Print Network [OSTI]

    Sarcia, Sam Rhea, 1982-

    2004-01-01

    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 ...

  13. A HIERARCHICAL STATISTICAL MODELING APPROACH FOR THE UNSUPERVISED 3D RECONSTRUCTION OF THE SCOLIOTIC SPINE

    E-Print Network [OSTI]

    Mignotte, Max

    . INTRODUCTION Scoliosis is a 3D deformation of the natural curve of the spinal column, including rotations and vertebral deformations. To ana­ lyze the 3D characteristics of these deformations, which can be useful

  14. In Operando Soft X-ray Spectroscopy of 3D Graphene Supercapacitor...

    Office of Scientific and Technical Information (OSTI)

    In Operando Soft X-ray Spectroscopy of 3D Graphene Supercapacitor Electrodes Citation Details In-Document Search Title: In Operando Soft X-ray Spectroscopy of 3D Graphene...

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

    E-Print Network [OSTI]

    Bhasin, Varun

    2014-01-01

    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 ...

  16. Quantum suppression law in a 3-D photonic chip implementing the Fast Fourier Transform

    E-Print Network [OSTI]

    Andrea Crespi; Roberto Osellame; Roberta Ramponi; Marco Bentivegna; Fulvio Flamini; Nicolò Spagnolo; Niko Viggianiello; Luca Innocenti; Paolo Mataloni; Fabio Sciarrino

    2015-08-04

    The identification of phenomena able to pinpoint quantum interference is attracting large interest. Indeed, a generalization of the Hong-Ou-Mandel effect valid for any number of photons and optical modes would represent an important leap ahead both from a fundamental perspective and for practical applications, such as certification of photonic quantum devices, whose computational speedup is expected to depend critically on multiparticle interference. Quantum distinctive features have been predicted for many particles injected into multimode interferometers implementing the Fourier transformation in the Fock space. In this work we develop a scalable approach for the implementation of quantum fast Fourier transform using 3-D photonic integrated interferometers, fabricated via femtosecond laser writing technique. We observe the quantum suppression of a large number of output states with 4- and 8-mode optical circuits: the experimental results demonstrate genuine quantum interference between the injected photons, thus offering a powerful tool for diagnostic of photonic platforms.

  17. Measurements of the Solid-body Rotation of Anisotropic Particles in 3D Turbulence

    E-Print Network [OSTI]

    Marcus, Guy G; Kramel, Stefan; Ni, Rui; Voth, Greg A

    2014-01-01

    We introduce a new method to measure Lagrangian vorticity and the rotational dynamics of anisotropic particles in a turbulent fluid flow. We use 3D printing technology to fabricate crosses (two perpendicular rods) and jacks (three mutually perpendicular rods). Time-resolved measurements of their orientation and solid-body rotation rate are obtained from stereoscopic video images of their motion in a turbulent flow between oscillating grids with $R_\\lambda$=$91$. The advected particles have a largest dimension of 6 times the Kolmogorov length, making them a good approximation to anisotropic tracer particles. Crosses rotate like disks and jacks rotate like spheres, so these measurements, combined with previous measurements of tracer rods, allow experimental study of ellipsoids across the full range of aspect ratios. The measured mean square tumbling rate, $\\langle \\dot{p}_i \\dot{p}_i \\rangle$, confirms previous direct numerical simulations that indicate that disks tumble much more rapidly than rods. Measurement...

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

    SciTech Connect (OSTI)

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

    2015-01-01

    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.

  19. The roughness of stylolites: Implications of 3D high resolution topography measurements

    E-Print Network [OSTI]

    Boyer, Edmond

    diagenesis and metamorphism that develop after their initiation. In this Letter we show the first 3D high

  20. C H A P T E R 1 What is Java 3D and

    E-Print Network [OSTI]

    Hill, Gary

    1 C H A P T E R 1 What is Java 3D and is it for me? 1.1 Strengths 2 1.2 Weaknesses 3 1.3 System Java 3D is an application programming interface (API) developed at Sun Microsystems for rendering interactive 3D graphics using the Java programming language. Java 3D is a client-side Java API. Other examples

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

    SciTech Connect (OSTI)

    Jacobsen, Chris

    2014-12-07

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

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

    E-Print Network [OSTI]

    Hauser, Kris

    -the-shelf electronics and new rapid proto- typing technologies, specifically the wide availability of 3D printers to nonROBOPuppet: 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

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

    E-Print Network [OSTI]

    Knill, Oliver

    THINKING LIKE ARCHIMEDES WITH A 3D PRINTER OLIVER KNILL AND ELIZABETH SLAVKOVSKY Abstract. We illustrate Archimedes' method using models produced with 3D printers. This approach allowed us to create- iment, we follow his steps by building models produced with modern 3D printers. Archimedes was an early

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

    E-Print Network [OSTI]

    Sharf, Andrei

    The emergence of low-cost 3D printers steers the investigation of new geometric problems that controlBuild-to-Last: Strength to Weight 3D Printed Objects Lin Lu1 Andrei Sharf2 Haisen Zhao1 Yuan Wei1 Ben-Gurion University 3 Tel Aviv University Figure 1: We reduce the material of a 3D kitten (left

  5. A Desktop 3D Printer in Safety-Critical Java Trur Biskopst Strm

    E-Print Network [OSTI]

    Schoeberl, Martin

    A Desktop 3D Printer in Safety-Critical Java Tórur Biskopstø Strøm Department of Informatics according to the specification. In this paper we present a 3D printer and its safety-critical Java level 1 evaluate the specification by implementing a RepRap 3D desktop printer as a use case. A RepRap is a desktop

  6. 3D Fingerprint Phantoms Sunpreet S. Arora1, Kai Cao1,

    E-Print Network [OSTI]

    Printing · Phantoms fabricated using a 3D printer (X & Y resolution: 16 microns, Z resolution: 30 microns3D Fingerprint Phantoms Sunpreet S. Arora1, Kai Cao1, Nicholas G. Paulter Jr.2 and Anil K. Jain1 1 by a grant from the NIST Measurement Science Program #12;3D Fingerprint Phantom 2 2D synthetic fingerprint

  7. Supplementary Material for Interdroplet bilayer arrays in millifluidic droplet traps from 3D printed moulds

    E-Print Network [OSTI]

    Southampton, University of

    on an Objet Connex350TM 3D printer. One block was baked for 24 hours at 80 °C, causing a colour change fromSupplementary Material for Interdroplet bilayer arrays in millifluidic droplet traps from 3D. Untreated 3D-printed moulds were found to inhibit the curing of PDMS; baking the moulds eliminates

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

    E-Print Network [OSTI]

    applications. Printing optical fibers is made possible by modern multi-material 3D printers. We print twoComputational 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

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

    E-Print Network [OSTI]

    O'Brien, James F.

    , and presence-aware pen holder. Center: touch-sensitive toys. Right: custom neon signs. ABSTRACT 3D printers leverage 3D printers as tools for design work. A wide array of objects, from toy fig- urines to video game fabricated on 3D printers today are passive: they express the form, but not the interactivity, of an object

  10. Spheree: A 3D Perspective-Corrected Interactive Spherical Scalable Display Ferreira, F.q

    E-Print Network [OSTI]

    British Columbia, University of

    in their applications or even print them with a 3D printer. Thus, Spheree plays a key role in realizing a completeSpheree: A 3D Perspective-Corrected Interactive Spherical Scalable Display Ferreira, F.q , Cabral to support head-coupled rendering to provide parallax-based 3D depth cues. Spheree is relatively compact

  11. Mime: Compact, Low-Power 3D Gesture Sensing for Interaction with Head-Mounted Displays

    E-Print Network [OSTI]

    Goyal, Vivek K

    Mime: Compact, Low-Power 3D Gesture Sensing for Interaction with Head-Mounted Displays Andrea Colac of Technology Figure 1: Mime is a compact, low power sensor for 3D gestural control of head mounted displays, a compact, low-power 3D sensor for unen- cumbered free-form, single-handed gestural interaction with head

  12. Generalized 3-D Tolerance Analysis of Mechanical Assemblies with Small Kinematic Adjustments

    E-Print Network [OSTI]

    Generalized 3-D Tolerance Analysis of Mechanical Assemblies with Small Kinematic Adjustments of Mechanical Engineering Brigham Young University Provo, Utah Abstract The Direct Linearization Method (DLM) for tolerance analysis of 3-D mechanical assemblies is presented. Vector assembly models are used, based on 3-D

  13. 3D seismic imaging of buried Younger Dryas mass movement flows: Lake Windermere, UK

    E-Print Network [OSTI]

    National Oceanography Centre Southampton

    ). In the offshore environment, 3D seismic data sets have bridged the gap between localised core stratigraphy3D seismic imaging of buried Younger Dryas mass movement flows: Lake Windermere, UK Mark E. Vardy a Keywords: High-resolution 3D seismic Submarine landslides Younger Dryas Lake District Windermere Debris

  14. Module Placement for Power Supply Noise and Wire Congestion Avoidance in 3D Packaging

    E-Print Network [OSTI]

    Swaminathan, Madhavan

    Module Placement for Power Supply Noise and Wire Congestion Avoidance in 3D Packaging Jacob Minz congestion minimization for 3D packaging. We employ decoupling capacitance insertion for noise suppression and 3D global routing for congestion avoidance. I. INTRODUCTION The m e potential of System-On-Package

  15. Class-specific grasping of 3D objects from a single 2D image

    E-Print Network [OSTI]

    Chiu, Han-Pang

    Our goal is to grasp 3D objects given a single image, by using prior 3D shape models of object classes. The shape models, defined as a collection of oriented primitive shapes centered at fixed 3D positions, can be learned ...

  16. 3D City Model Generator: The Application of Neuro-Fuzzy Systems in CAD

    E-Print Network [OSTI]

    163 3D City Model Generator: The Application of Neuro-Fuzzy Systems in CAD Yoshihiro Kobayashi that generates 3D city models from satellite images is formulated, implemented, and tested. Techniques from operations. Therefore, it is expected to develop a system that will generate 3D city models more easily

  17. Optical Snow Analysis using the 3D-Xray Transform A. Averbuch2

    E-Print Network [OSTI]

    Averbuch, Amir

    Optical Snow Analysis using the 3D-Xray Transform N. Peled1 A. Averbuch2 Y. Keller3 Y. Shkolnisky4 of the classical methods use optical flow, layered motion or segmentation. Optical snow is a complex motion optical snow motion in video by using the discrete 3D-Xray transform. The algorithm uses the discrete 3D

  18. Thermal-Aware Physical Design Flow for 3-D ICs Jason Cong and Yan Zhang

    E-Print Network [OSTI]

    Cong, Jason "Jingsheng"

    Thermal-Aware Physical Design Flow for 3-D ICs Jason Cong and Yan Zhang UCLA Computer Science of the largest challenges in 3-D IC design is heat dissipation. In this paper we propose a thermal-aware physical IC designs [2]. The thermal problem is exacerbated in the 3-D cases for mainly two reasons: (1

  19. ARTICLE IN PRESS 3D mapping of ventricular and corpus callosum abnormalities in

    E-Print Network [OSTI]

    Thompson, Paul

    differences with measures of immune system deterioration and cognitive decline. Methods: 51 3D brain MRI scans correlated with viral load, T cell counts, and cognitive impairment. Results: Statistical maps revealed the 3D profile of ventricular expansion and callosal thinning in AIDS. Specific 3D ventricular changes

  20. Automated 3D Phenotype Analysis Using Data Mining Ilya Plyusnin1

    E-Print Network [OSTI]

    Evans, Alistair

    Automated 3D Phenotype Analysis Using Data Mining Ilya Plyusnin1 *, Alistair R. Evans1 , Aleksis. Here, we introduce the techniques of data mining to the study of 3D biological shapes to bring, Jernvall J (2008) Automated 3D Phenotype Analysis Using Data Mining. PLoS ONE 3(3): e1742. doi:10

  1. MASKS 2004 Invitation to 3D vision Step-by-Step Model Buidling

    E-Print Network [OSTI]

    Kosecka, Jana

    MASKS © 2004 Invitation to 3D vision Step-by-Step Model Buidling #12;MASKS © 2004 Invitation to 3D Reconstruction Sparse Structure and camera motion Landing Augmented Reality Vision Based Control #12;MASKS © 2004 Reconstruction #12;MASKS © 2004 Invitation to 3D vision Review Feature correspondence Projective Reconstruction

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

    E-Print Network [OSTI]

    Kane, Shaun K.

    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

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

    E-Print Network [OSTI]

    Lévy, Bruno

    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

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

    E-Print Network [OSTI]

    Poupyrev, Ivan

    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

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

    E-Print Network [OSTI]

    Verschure, Paul

    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

  6. Let me catch this! Experiencing Interactive 3D Cinema through Collecting Content with a Mobile Phone

    E-Print Network [OSTI]

    Let me catch this! Experiencing Interactive 3D Cinema through Collecting Content with a Mobile explore how to enable interaction with content in the context of 3D cinemas by means of a mobile phone interested in the user ex- perience of the interactive 3D cinema concept, and how dif- ferent interactive

  7. RICE UNIVERSITY Building a 3D Atlas of the Mouse Brain

    E-Print Network [OSTI]

    Ju, Tao

    RICE UNIVERSITY Building a 3D Atlas of the Mouse Brain by Tao Ju A Thesis Submitted in Partial, Texas April, 2005 #12;Building a 3D Atlas of the Mouse Brain Tao Ju Abstract Building and studying 3D representations of anatomical structures, such as the brain, plays an important role in modern biology and medical

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

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    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

  9. 3D Pitot Tube Measurements and Calibration in the Wind Tunnel

    E-Print Network [OSTI]

    3D Pitot Tube Measurements and Calibration in the Wind Tunnel Center for Measurement Standards by CFD 9 #12;Copyright 2014 ITRI Omni-type 3D pitot tube Characterization of Pitot Tubes - Design of 3D.4) % · With grid No.4: T.I.= (1.7 to 4.4) % Grid-generated turbulent flow Calibration Facilities - Turbulence

  10. Automated registration of 3D-range with 2D-color images: an overview

    E-Print Network [OSTI]

    Stamos, Ioannis

    extraction 3D feature extraction Partial Model 2D feature extraction Complete Model Range-Range Registration adjust parameters on sitep Cannot handle historical photographs #12;Automated methods One 2D imageStamos)) Input: Range ImagesInput: Range Images 3D Line Extraction3D Line Extraction Input: 2D ImagesInput: 2D

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

    E-Print Network [OSTI]

    Barrash, Warren

    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

  12. 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

  13. Theory of traveltime shifts around compacting reservoirs: 3D solutions for heterogeneous anisotropic media

    E-Print Network [OSTI]

    Tsvankin, Ilya

    Theory of traveltime shifts around compacting reservoirs: 3D solutions for heterogeneous and cannot be applied to traveltime shifts measured on prestack seismic data. We give an analytic 3D of traveltimes that accounts not only for the velocity changes but also for 3D deformation of reflectors

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

    E-Print Network [OSTI]

    Aksun, M. Irsadi

    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

  15. Empowering the Industrial Internet of Things with 3D Printed Sensors and Antennas

    E-Print Network [OSTI]

    Das, Suman

    3/23/15 1 Empowering the Industrial Internet of Things with 3D Printed Sensors and Antennas Optomec Enabling Technology for the IIoT 9 Fully Print 3D Parts or Print-on 3Dtm Parts · Print Structural-process (dry, cure, sinter...) Part § Fine line traces § 3D Conformal printing § Interconnects § Embedded

  16. 3D Facial Expression Recognition for the Enhancement of Human-Computer Interaction

    E-Print Network [OSTI]

    Barreto, Armando

    , Armando Barreto Electrical & Computer Engineering Department Florida International University Miami, FL, with the development of 3D imaging technology, fast and cheap 3D scanners became available in the market. 3D scans do. The most distinctive features associated with a smile are the bulge of the cheek muscles and the uplift

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

    E-Print Network [OSTI]

    Fleming, Paul D. "Dan"

    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

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

    E-Print Network [OSTI]

    Mease, Kenneth D.

    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

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

    E-Print Network [OSTI]

    Boyer, Edmond

    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

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

    E-Print Network [OSTI]

    Deng, Jiansong

    ; 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

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

    E-Print Network [OSTI]

    Lévy, Bruno

    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

  2. Multi-Finger Gestural Interaction with 3D Volumetric Displays Tovi Grossman, Daniel Wigdor, Ravin Balakrishnan

    E-Print Network [OSTI]

    Toronto, University of

    Multi-Finger Gestural Interaction with 3D Volumetric Displays Tovi Grossman, Daniel Wigdor, Ravin.dgp.toronto.edu ABSTRACT Volumetric displays provide interesting opportunities and challenges for 3D interaction and implementation of techniques for interactive direct manipulation of objects with a 3D volumetric display. Motion

  3. The Design and Evaluation of Selection Techniques for 3D Volumetric Displays

    E-Print Network [OSTI]

    Toronto, University of

    The Design and Evaluation of Selection Techniques for 3D Volumetric Displays Tovi Grossman & Ravin.dgp.toronto.edu ABSTRACT Volumetric displays, which display imagery in true 3D space, are a promising platform and interaction techniques must be designed. In this paper, we explore 3D selection techniques for volumetric

  4. KNOWLEDGE-BASED PROCESS MANAGEMENT TO POPULATE DATABASES WITH 3D MULTI-REPRESENTATION OF BUILDINGS

    E-Print Network [OSTI]

    extraction automation (through parametric models) while facilitating the extraction of simplified geometries on demand" applications or SOLAP (Spatial On-Line Analytical Processing) applications. Thus, 3D-MRDB (3D. Besides, creating a unique 3D-MRDB to derive different cartographic products is an interesting avenue

  5. Bending response of 3-D woven and braided preform composite materials

    SciTech Connect (OSTI)

    Pochiraju, K.; Parvizi-Majidi, A.; Chou, T.W.; Shah, B.

    1994-12-31

    Three dimensional textile carbon-epoxy composites exhibit general anisotropy. Further, these materials may possess different modulus in uniaxial tension than that in compression. In an earlier material characterization effort, the tension, compression, and shear properties of these composites were determined. In this paper, theoretical modeling of flexure of the textile composites and experimental correlation are presented. Four point bending tests were conducted according to STM D709 standards to determine the load to mid-span deflection relationships for typical textile composites. The results of experimental analysis are compared with classical beam theory, theory of elasticity solutions considering material orthotropy and shear deflection, and finite element analysis considering material orthotropy and finite deformation/rotations. The derivation of a harmonic function, required for the theory of elasticity solution, is described in the paper. Homogeneous orthotropic elastic properties are assumed for the 3-D textile composites, which is a reasonable approximation for specimens considerably larger than the repeated geometric unit of the fiber preform. The so called ``flex modulus`` is determined from the experimental data.

  6. 3D Model of the Tuscarora Geothermal Area

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

    Faulds, James E.

    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.

  7. 3D Model of the Tuscarora Geothermal Area

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

    Faulds, James E.

    2013-12-31

    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.

  8. Supporting Information: GM Giambau et al Ion counting from explicit solvent simulations and 3D-RISM Ion counting from explicit solvent simulations and 3D-RISM

    E-Print Network [OSTI]

    Herschlag, Dan

    Supporting Information: GM Giambau et al Ion counting from explicit solvent simulations and 3D, Stanford University, Stanford, CA 94305 USA; ¶ These authors contributed equally GM Giambau and T Luchko Information: GM Giambau et al Ion counting from explicit solvent simulations and 3D-RISM S02 Numerical

  9. Self-assembly of nanocomposite materials

    DOE Patents [OSTI]

    Brinker, C. Jeffrey (Albuquerque, NM); Sellinger, Alan (Palo Alto, CA); Lu, Yunfeng (New Orleans, LA)

    2001-01-01

    A method of making a nanocomposite self-assembly is provided where at least one hydrophilic compound, at least one hydrophobic compound, and at least one amphiphilic surfactant are mixed in an aqueous solvent with the solvent subsequently evaporated to form a self-assembled liquid crystalline mesophase material. Upon polymerization of the hydrophilic and hydrophobic compounds, a robust nanocomposite self-assembled material is formed. Importantly, in the reaction mixture, the amphiphilic surfactant has an initial concentration below the critical micelle concentration to allow formation of the liquid-phase micellar mesophase material. A variety of nanocomposite structures can be formed, depending upon the solvent evaporazation process, including layered mesophases, tubular mesophases, and a hierarchical composite coating composed of an isotropic worm-like micellar overlayer bonded to an oriented, nanolaminated underlayer.

  10. DYNA3D/ParaDyn Regression Test Suite Inventory

    SciTech Connect (OSTI)

    Lin, J I

    2011-01-25

    The following table constitutes an initial assessment of feature coverage across the regression test suite used for DYNA3D and ParaDyn. It documents the regression test suite at the time of production release 10.1 in September 2010. The columns of the table represent groupings of functionalities, e.g., material models. Each problem in the test suite is represented by a row in the table. All features exercised by the problem are denoted by a check mark in the corresponding column. The definition of ''feature'' has not been subdivided to its smallest unit of user input, e.g., algorithmic parameters specific to a particular type of contact surface. This represents a judgment to provide code developers and users a reasonable impression of feature coverage without expanding the width of the table by several multiples. All regression testing is run in parallel, typically with eight processors. Many are strictly regression tests acting as a check that the codes continue to produce adequately repeatable results as development unfolds, compilers change and platforms are replaced. A subset of the tests represents true verification problems that have been checked against analytical or other benchmark solutions. Users are welcomed to submit documented problems for inclusion in the test suite, especially if they are heavily exercising, and dependent upon, features that are currently underrepresented.

  11. A parallel algorithm for 3D dislocation dynamics

    SciTech Connect (OSTI)

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

    2006-12-10

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

  12. 3D photospheric velocity field of a Supergranular cell

    E-Print Network [OSTI]

    Dario Del Moro; Silvia Giordano; Francesco Berrilli

    2007-05-23

    We investigate the plasma flow properties inside a Supergranular (SG) cell, in particular its interaction with small scale magnetic field structures. The SG cell has been identified using the magnetic network (CaII wing brightness) as proxy, applying the Two-Level Structure Tracking (TST) to high spatial, spectral and temporal resolution observations obtained by IBIS. The full 3D velocity vector field for the SG has been reconstructed at two different photospheric heights. In order to strengthen our findings, we also computed the mean radial flow of the SG by means of cork tracing. We also studied the behaviour of the horizontal and Line of Sight plasma flow cospatial with cluster of bright CaII structures of magnetic origin to better understand the interaction between photospheric convection and small scale magnetic features. The SG cell we investigated seems to be organized with an almost radial flow from its centre to the border. The large scale divergence structure is probably created by a compact region of constant up-flow close to the cell centre. On the edge of the SG, isolated regions of strong convergent flow are nearby or cospatial with extended clusters of bright CaII wing features forming the knots of the magnetic network.

  13. 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.

  14. 2D/3D registration algorithm for lung brachytherapy

    SciTech Connect (OSTI)

    Zvonarev, P. S.; Farrell, T. J.; Hunter, R.; Wierzbicki, M.; Hayward, J. E.; Sur, R. K.

    2013-02-15

    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.

  15. GPU-accelerated denoising of 3D magnetic resonance images

    SciTech Connect (OSTI)

    Howison, Mark; Wes Bethel, E.

    2014-05-29

    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.

  16. Simulated Photoevaporative Mass Loss from Hot Jupiters in 3D

    E-Print Network [OSTI]

    Tripathi, Anjali; Murray-Clay, Ruth A; Krumholz, Mark R

    2015-01-01

    Ionizing stellar photons heat the upper regions of planetary atmospheres, driving atmospheric mass loss. Gas escaping from several hot, hydrogen-rich planets has been detected using UV and X-ray transmission spectroscopy. Because these planets are tidally locked, and thus asymmetrically irradiated, escaping gas is unlikely to be spherically symmetric. In this paper, we focus on the effects of asymmetric heating on local outflow structure. We use the Athena code for hydrodynamics to produce 3D simulations of hot Jupiter mass loss that jointly model wind launching and stellar heating via photoionization. Our fiducial planet is an inflated, hot Jupiter with radius $R_p=2.14 R_{\\rm Jup}$ and mass $M_p = 0.53 M_{\\rm Jup}$. We irradiate the initially neutral, atomic hydrogen atmosphere with 13.6 eV photons and compute the outflow's ionization structure. There are clear asymmetries in the atmospheric outflow, including a neutral shadow on the planet's nightside. Given an incident ionizing UV flux comparable to that ...

  17. 3-D Finite Element Analyses of the Egan Cavern Field

    SciTech Connect (OSTI)

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

    1999-02-01

    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.

  18. Ranking on Cross Domain Manifold forRanking on Cross-Domain Manifold for Sketch-based 3D model Retrieval

    E-Print Network [OSTI]

    Ohbuchi, Ryutarou

    printers,... ­ User generated. T i bl 3D h· Trimble 3D warehouse... 3D model retrieval is essential scanners, 3D printers,... ­ User generated. T i bl 3D h· Trimble 3D warehouse... 3D model retrievalRanking on Cross Domain Manifold forRanking on Cross-Domain Manifold for Sketch-based 3D model

  19. Galaxy Clustering in 3D and Modified Gravity Theories

    E-Print Network [OSTI]

    Dipak Munshi; Geraint Pratten; Patrick Valageas; Peter Coles; Philippe Brax

    2015-08-03

    We study Modified Gravity (MG) theories by modelling the redshifted matter power spectrum in a spherical Fourier-Bessel (sFB) basis. We use a fully non-linear description of the real-space matter power-spectrum and include the lowest-order redshift-space correction (Kaiser effect), taking into account some additional non-linear contributions. Ignoring relativistic corrections, which are not expected to play an important role for a shallow survey, we analyse two different modified gravity scenarios, namely the generalised Dilaton scalar-tensor theories and the $f({R})$ models in the large curvature regime. We compute the 3D power spectrum ${\\cal C}^s_{\\ell}(k_1,k_2)$ for various such MG theories with and without redshift space distortions, assuming precise knowledge of background cosmological parameters. Using an all-sky spectroscopic survey with Gaussian selection function $\\varphi(r)\\propto \\exp(-{r^2 / r^2_0})$, $r_0 = 150 \\, h^{-1} \\, {\\textrm{Mpc}}$, and number density of galaxies $\\bar {\\textrm{N}} =10^{-4}\\;{\\textrm{Mpc}}^{-3}$, we use a $\\chi^2$ analysis, and find that the lower-order $(\\ell \\leq 25)$ multipoles of ${\\cal C}^s_\\ell(k,k')$ (with radial modes restricted to $k 25$ modes can further reduce the error bars and thus in principle make cosmological gravity constraints competitive with solar system tests. However this will require an accurate modelling of non-linear redshift space distortions. Using a tomographic $\\beta(a)$-$m(a)$ parameterization we also derive constraints on specific parameters describing the Dilaton models of modified gravity.

  20. 3D electromagnetic inversion for environmental site characterization

    SciTech Connect (OSTI)

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

    1997-04-01

    A 3-D non-linear electromagnetic inversion scheme has been developed to produce images of subsurface conductivity structure from electromagnetic geophysical data. The solution is obtained by successive linearized model updates where full forward modeling is employed at each iteration to compute model sensitivities and predicted data. Regularization is applied to the problem to provide stability. Because the inverse part of the problem requires the solution of 10`s to 100`s of thousands of unknowns, and because each inverse iteration requires many forward models to be computed, the code has been implemented on massively parallel computer platforms. The use of the inversion code to image environmental sites is demonstrated on a data set collected with the Apex Parametrics {open_quote}MaxMin I-8S{close_quote} over a section of stacked barrels and metal filled boxes at the Idaho National Laboratory`s {open_quote}Cold Test Pit{close_quote}. The MaxMin is a loop-loop frequency domain system which operates from 440 Hz up to 56 kHz using various coil separations; for this survey coil separations of 15, 30 and 60 feet were employed. The out-of phase data are shown to be of very good quality while the in-phase are rather noisy due to slight mispositioning errors, which cause improper cancellation of the primary free space field in the receiver. Weighting the data appropriately by the estimated noise and applying the inversion scheme is demonstrated to better define the structure of the pit. In addition, comparisons are given for single coil separations and multiple separations to show the benefits of using multiple offset data.

  1. Classifying Supersymmetric Solutions in 3D Maximal Supergravity

    E-Print Network [OSTI]

    Jan de Boer; Daniel R. Mayerson; Masaki Shigemori

    2014-11-18

    String theory contains various extended objects. Among those, objects of codimension two (such as the D7-brane) are particularly interesting. Codimension two objects carry non-Abelian charges which are elements of a discrete U-duality group and they may not admit a simple space-time description, in which case they are known as exotic branes. A complete classification of consistent codimension two objects in string theory is missing, even if we demand that they preserve some supersymmetry. As a step toward such a classification, we study the supersymmetric solutions of 3D maximal supergravity, which can be regarded as approximate description of the geometry near codimension two objects. We present a complete classification of the types of supersymmetric solutions that exist in this theory. We found that this problem reduces to that of classifying nilpotent orbits associated with the U-duality group, for which various mathematical results are known. We show that the only allowed supersymmetric configurations are 1/2, 1/4, 1/8, and 1/16 BPS, and determine the nilpotent orbits that they correspond to. One example of 1/16 BPS configurations is a generalization of the MSW system, where momentum runs along the intersection of seven M5-branes. On the other hand, it turns out exceedingly difficult to translate this classification into a simple criterion for supersymmetry in terms of the non-Abelian (monodromy) charges of the objects. For example, it can happen that a supersymmetric solution exists locally but cannot be extended all the way to the location of the object. To illustrate the various issues that arise in constructing supersymmetric solutions, we present a number of explicit examples.

  2. Indoor Localization Algorithms for an Ambulatory Human Operated 3D Mobile Mapping System

    SciTech Connect (OSTI)

    Corso, N; Zakhor, A

    2013-12-03

    Indoor localization and mapping is an important problem with many applications such as emergency response, architectural modeling, and historical preservation. In this paper, we develop an automatic, off-line pipeline for metrically accurate, GPS-denied, indoor 3D mobile mapping using a human-mounted backpack system consisting of a variety of sensors. There are three novel contributions in our proposed mapping approach. First, we present an algorithm which automatically detects loop closure constraints from an occupancy grid map. In doing so, we ensure that constraints are detected only in locations that are well conditioned for scan matching. Secondly, we address the problem of scan matching with poor initial condition by presenting an outlier-resistant, genetic scan matching algorithm that accurately matches scans despite a poor initial condition. Third, we present two metrics based on the amount and complexity of overlapping geometry in order to vet the estimated loop closure constraints. By doing so, we automatically prevent erroneous loop closures from degrading the accuracy of the reconstructed trajectory. The proposed algorithms are experimentally verified using both controlled and real-world data. The end-to-end system performance is evaluated using 100 surveyed control points in an office environment and obtains a mean accuracy of 10 cm. Experimental results are also shown on three additional datasets from real world environments including a 1500 meter trajectory in a warehouse sized retail shopping center.

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

    E-Print Network [OSTI]

    Pinnacle

    2004-04-23

    ?p = 1.8/?2 = 0.18 (Charlaix 1986),. (4) ?p = 1.85/8 .... dominant frequency of 8 × 105 Hz and a time increment of ... In this section we consider the scattering attenuation coeffi- ... with experimental data described in a recent review of Hud-.

  4. Polyaniline Stabilized Magnetite Nanoparticle Reinforced Epoxy Nanocomposites

    E-Print Network [OSTI]

    Guo, John Zhanhu

    ,|| Suying Wei,*,§ and Zhanhu Guo*, Integrated Composites Lab (ICL), Dan F. Smith Department of Chemical ABSTRACT: Magnetic epoxy polymer nanocomposites (PNCs) reinforced with magnetite (Fe3O4) nanoparticles (NPs by conductive polyaniline (PANI) is achieved via a surface initiated polymerization (SIP) approach. The effects

  5. JOM March 200750 OverviewNanocomposite Materials

    E-Print Network [OSTI]

    Sawyer, Wallace

    interesting properties. A defining feature of polymer nano- composites is that the small size of the fillers of high-performance multifunc- tional nanocomposites. For example, transparent conducting polymer-diametercarbonfiber. Thesefeaturesofnanoparticlesprovide an opportunity for creating polymer composites with unique properties. Second, nanoscale fillers

  6. Polymer nanocomposites for lithium battery applications

    DOE Patents [OSTI]

    Sandi-Tapia, Giselle; Gregar, Kathleen Carrado

    2006-07-18

    A single ion-conducting nanocomposite of a substantially amorphous polyethylene ether and a negatively charged synthetic smectite clay useful as an electrolyte. Excess SiO2 improves conductivity and when combined with synthetic hectorite forms superior membranes for batteries. A method of making membranes is also disclosed.

  7. Laser gain media based on nanocomposite materials

    E-Print Network [OSTI]

    Boyd, Robert W.

    19, 2007 A new way of controlling the laser properties of optical materials by designing compositeLaser gain media based on nanocomposite materials Ksenia Dolgaleva* and Robert W. Boyd The Institute of Optics, University of Rochester, Rochester, New York 14627, USA *Corresponding author: ksenia

  8. Enhancement in performance of polycarbazole-graphene nanocomposite Schottky diode

    SciTech Connect (OSTI)

    Pandey, Rajiv K.; Singh, Arun Kumar; Prakash, Rajiv, E-mail: rprakash.mst@itbhu.ac.in [School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005 (India)] [School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi-221005 (India)

    2013-12-15

    We report formation of polycarbazole (PCz)–graphene nanocomposite over indium tin oxide (ITO) coated glass substrate using electrochemical technique for fabrication of high performance Schottky diodes. The synthesized nanocomposite is characterized before fabrication of devices for confirmation of uniform distribution of graphene nanosheets in the polymer matrix. Pure PCz and PCz-graphene nanocomposites based Schottky diodes are fabricated of configuration Al/PCz/ITO and Al/PCz-graphene nanocomposite/ITO, respectively. The current density–voltage (J-V) characteristics and diode performance parameters (such as the ideality factor, barrier height, and reverse saturation current density) are compared under ambient condition. Al/PCz-graphene nanocomposite/ITO device exhibits better ideality factor in comparison to the device formed using pure PCz. It is also observed that the Al/PCz-graphene nanocomposite/ITO device shows large forward current density and low turn on voltage in comparison to Al/PCz/ITO device.

  9. [12.7.20044:01pm] [101114] [Page No. 101] {Eserial}4393-van-Pelt/3d/vanPelt-tx08.3d Van Pelt

    E-Print Network [OSTI]

    Stryker, Michael

    . Prog Brain Res.147:103-114. Corrections indicated in red. #12;[12.7.2004­4:01pm] [101­114] [Page No[12.7.2004­4:01pm] [101­114] [Page No. 101] {Eserial}4393-van-Pelt/3d/vanPelt-tx08.3d Van Pelt U N Research, Vol. 147 ISSN 0079-6123 Copyright ß 2005 Elsevier BV. All rights reserved CHAPTER 8 Molecular

  10. A simple backprojection algorithm for 3D in vivo EPID dosimetry of IMRT treatments

    SciTech Connect (OSTI)

    Wendling, Markus; McDermott, Leah N.; Mans, Anton; Sonke, Jan-Jakob; Herk, Marcel van; Mijnheer, Ben J. [Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam (Netherlands)

    2009-07-15

    Treatment plans are usually designed, optimized, and evaluated based on the total 3D dose distribution, motivating a total 3D dose verification. The purpose of this study was to develop a 2D transmission-dosimetry method using an electronic portal imaging device (EPID) into a simple 3D method that provides 3D dose information. In the new method, the dose is reconstructed within the patient volume in multiple planes parallel to the EPID for each gantry angle. By summing the 3D dose grids of all beams, the 3D dose distribution for the total treatment fraction is obtained. The algorithm uses patient contours from the planning CT scan but does not include tissue inhomogeneity corrections. The 3D EPID dosimetry method was tested for IMRT fractions of a prostate, a rectum, and a head-and-neck cancer patient. Planned and in vivo-measured dose distributions were within 2% at the dose prescription point. Within the 50% isodose surface of the prescribed dose, at least 97% of points were in agreement, evaluated with a 3D {gamma} method with criteria of 3% of the prescribed dose and 0.3 cm. Full 3D dose reconstruction on a 0.1x0.1x0.1 cm{sup 3} grid and 3D {gamma} evaluation took less than 15 min for one fraction on a standard PC. The method allows in vivo determination of 3D dose-volume parameters that are common in clinical practice. The authors conclude that their EPID dosimetry method is an accurate and fast tool for in vivo dose verification of IMRT plans in 3D. Their approach is independent of the treatment planning system and provides a practical safety net for radiotherapy.

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

    E-Print Network [OSTI]

    Maria Simonetta Bernabei; Horst Thaler

    2014-12-10

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

  12. Painting by numbersPrinting paintings in 3D Timo de Rijk

    E-Print Network [OSTI]

    Lindken, Ralph

    Delft #12;2 Nuna7 wins again 16 Less heat loss thanks to Organic Rankine Cycle 3D reproduction of paintings

  13. 3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary

    E-Print Network [OSTI]

    Majer, E.L.

    2003-01-01

    3-D Seismic Methods For Geothermal Reservoir Exploration andseismic imaging which will increase the efficiency of explorationexploration and are early drilling 1. Surface studies (a) Reflection seismic.

  14. Next Generation Lunch: Revealing the World’s First 3D Printed Car (text version)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Below is the text version for the Next Generation Lunch: Revealing the World’s First 3D Printed Car Video.

  15. A 3D-3C Reflection Seismic Survey and Data Integration to Identify...

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

    Summary: Understanding geothermal reservoirs requires multi-discipline, integrated 3D GIS: Access down hole geophysical logs, surface geophysics, isotherms, isoresistivity...

  16. Full Core, Heterogeneous, Time Dependent Neutron Transport Calculations with the 3D Code DeCART

    E-Print Network [OSTI]

    Hursin, Mathieu

    2010-01-01

    3-D Full Core Boiling Water Reactor Applications. NuclearPWR) rod-ejection and Boiling Water Reactor (BWR) rod-drop

  17. Low-cost, Efficient, Flexible Solar Cells with 3D Nanopillar...

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

    Fan at Berkeley Lab have invented a method for growing highly regular, single-crystalline nanopillar arrays of optically active semiconductors to produce efficient, 3D solar...

  18. Fabrication of 3D high aspect ratio PDMS microfluidic networks with a hybrid stamp

    E-Print Network [OSTI]

    Kung, YC; Huang, KW; Fan, YJ; Fan, YJ; Chiou, PY

    2015-01-01

    Three dimensional microfluidics with embedded microballoptofluidics, inertial microfluidics, and other fields whereulation and control. 3D microfluidics is one of the future

  19. An Efficient Algorithm for Mapping Imaging Data to 3D Unstructured...

    Office of Scientific and Technical Information (OSTI)

    Algorithm for Mapping Imaging Data to 3D Unstructured Grids in Computational Biomechanics Citation Details In-Document Search Title: An Efficient Algorithm for Mapping...

  20. qp: A Tool for Generating 3D Models of Ancient Greek Pottery A. Koutsoudis1

    E-Print Network [OSTI]

    Chamzas, Christodoulos

    , as it may lead to the physical replication of the object by means of 3D printing [6]. This has become clear

  1. 3D GRMHD and GRPIC Simulations of Disk-Jet Coupling and Emission

    SciTech Connect (OSTI)

    Nishikawa, Ken-Ichi; Mizuno, Y.; /USRA, Huntsville; Watson, M.; /Fisk U.; Hardee, P.; /Alabama U.; Fuerst, S.; /KIPAC, Menlo Park; Wu, K.; /Mullard Space Sci. Lab.; Fishman,; /NASA, Marshall

    2006-12-19

    We investigate jet formation in black-hole systems using 3-D General Relativistic Particle-In-Cell (GRPIC) and 3-D GRMHD simulations. GRPIC simulations, which allow charge separations in a collisionless plasma, do not need to invoke the frozen condition as in GRMHD simulations. 3-D GRPIC simulations show that jets are launched from Kerr black holes as in 3-D GRMHD simulations, but jet formation in the two cases may not be identical. Comparative study of black hole systems with GRPIC and GRMHD simulations with the inclusion of radiate transfer will further clarify the mechanisms that drive the evolution of disk-jet systems.

  2. Investigating the Accuracy and Reproducibility of 3dMDface System for Soft Tissue Analysis

    E-Print Network [OSTI]

    Kachroo, Yasir M.

    2015-01-01

    of 2D anthropometry …………………………………. …………………..8 Futureis a form of “indirect” anthropometry, 3D images can beof 2D imaging and anthropometry Craniofacial anthropometry

  3. ORNL Unveils 3D-Printed Home and Vehicle with the Unique Ability...

    Office of Environmental Management (EM)

    (ORNL) announced successful efforts of the the lab's Additive Manufacturing Integrated Energy (AMIE) demonstration. The nine-month project reached its goal of 3D-printing an...

  4. MT3D: a 3 dimensional magnetotelluric modeling program (user's guide and documentation for Rev. 1)

    SciTech Connect (OSTI)

    Nutter, C.; Wannamaker, P.E.

    1980-11-01

    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.

  5. Carbon nanocomposite sorbent and methods of using the same for...

    Office of Scientific and Technical Information (OSTI)

    using the same for separation of one or more materials from a gas stream The present invention relates to carbon nanocomposite sorbents. The present invention provides carbon...

  6. Synthesis and Characterization of Structured Si-Carbon Nanocomposite...

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

    Si-Carbon Nanocomposite Anodes and Functional Polymer Binders Vehicle Technologies Office Merit Review 2014: High Energy, Long Cycle Life Lithium-ion Batteries for EV Applications...

  7. Method of preparing graphene-sulfur nanocomposites for rechargeable...

    Office of Scientific and Technical Information (OSTI)

    Method of preparing graphene-sulfur nanocomposites for rechargeable lithium-sulfur battery electrodes Citation Details In-Document Search Title: Method of preparing graphene-sulfur...

  8. Large-dimension, high-ZT Thermoelectric Nanocomposites for High...

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

    Large-dimension, high-ZT Thermoelectric Nanocomposites for High-Power High-efficiency Waste Heat Recovery for Electricity Generation Large-dimension, high-ZT Thermoelectric...

  9. An integrated approach to offshore wind energy assessment: Great Lakes 3D Wind Experiment. Part I. Calibration and testing RJ Barthelmie1, SC Pryor1, CM Smith1, P Crippa1, H Wang1, R. Krishnamurthy2, R. Calhoun2, D Valyou3, P Marzocca3, D Matthiesen4, N.

    E-Print Network [OSTI]

    Polly, David

    An integrated approach to offshore wind energy assessment: Great Lakes 3D Wind Experiment. Part I Government or any agency thereof." Introduction An experiment to test wind and turbulence measurement strategies was conducted at a northern Indiana wind farm in May 2012. The experimental design focused

  10. Biosensors Based on Carbon Nanotubes/Nickel Hexacyanoferrate/Glucose Oxidase Nanocomposites

    SciTech Connect (OSTI)

    Cui, Xiaoli; Liu, Guodong; Lin, Yuehe

    2005-09-01

    Novel hybrid films based on carbon nanotubes (CNTs)/nickel hexacyanoferrate (NiHCF) nanocomposites were synthesized, characterized, and evaluated for chemical and bio-sensing properties. Nickel hexacyanoferrate particles were electrodeposited on the porous CNT thin-film to fabricate electrochemical sensors with improved sensitivity toward hydrogen peroxide. Transmission electron microscopy illustrated the deposition of nickel hexacyanoferrate nanoparticles on the surface of carbon nanotubes. The experimental results show the electrode modified with the hybrid nanocomposite film has higher electrocatalytic activity and stability for detection of hydrogen peroxide than the electrodes modified with carbon nanotube or nickel hexacyanoferrate alone. With glucose oxidase (GOx) as an enzyme model, we constructed a biosensor based on the CNTs/NiHCF/GOx nanocomposite. Excellent linear relationship up to 1.2 mM has been attained with a slope of 5.3 ?A/mM for the glucose biosensor. The response time and detection limit (S/N = 3) of the biosensor was determined to be 10 s and 1 ?M, respectively. The high sensitivity to glucose of the biosensor resulted from the high surface area of carbon nanotubes and excellent electrocatalytic activity of the modifiers. The biosensor also performed with excellent reproducibility and good stability.

  11. Modeling of Intermediate Structures and Chain Conformation in Silica-Latex Nanocomposites Observed by SANS During Annealing

    E-Print Network [OSTI]

    Anne-Caroline Genix; Mouna TATOU; Ainara Imaz; Jacqueline Forcada; Ralph Schweins; Isabelle Grillo; Julian Oberdisse

    2012-02-29

    The evolution of the polymer structure during nanocomposite formation and annealing of silica-latex nanocomposites is studied using contrast-variation small angle neutron scattering. The experimental system is made of silica nanoparticles (Rsi \\approx 8 nm) and a mixture of purpose-synthesized hydrogenated and deuterated nanolatex (Rlatex \\approx 12.5 nm). The progressive disappearance of the latex beads by chain interdiffusion and release in the nanocomposites is analyzed quantitatively with a model for the scattered intensity of hairy latex beads and an RPA description of the free chains. In silica-free matrices and nanocomposites of low silica content (7%v), the annealing procedure over weeks at up to Tg + 85 K results in a molecular dispersion of chains, the radius of gyration of which is reported. At higher silica content (20%v), chain interdiffusion seems to be slowed down on time-scales of weeks, reaching a molecular dispersion only at the strongest annealing. Chain radii of gyration are found to be unaffected by the presence of the silica filler.

  12. Past Achievements and Future Challenges in 3D Photonic Metamaterials

    E-Print Network [OSTI]

    Soukoulis, Costas M

    2011-01-01

    Photonic metamaterials are man-made structures composed of tailored micro- or nanostructured metallo-dielectric sub-wavelength building blocks that are densely packed into an effective material. This deceptively simple, yet powerful, truly revolutionary concept allows for achieving novel, unusual, and sometimes even unheard-of optical properties, such as magnetism at optical frequencies, negative refractive indices, large positive refractive indices, zero reflection via impedance matching, perfect absorption, giant circular dichroism, or enhanced nonlinear optical properties. Possible applications of metamaterials comprise ultrahigh-resolution imaging systems, compact polarization optics, and cloaking devices. This review describes the experimental progress recently made fabricating three-dimensional metamaterial structures and discusses some remaining future challenges.

  13. Readout Circuit System for In2O3/RGO Nanocomposite Gas Sensors

    E-Print Network [OSTI]

    Lin, Cheng-Yi

    2015-01-01

    semiconductor nanomaterials. Although nanocomposites of metal oxide nanostructures and reduced graphene

  14. For additional information, please e-mail ctsc_noveltech@med.cornell.edu REQUEST FOR CTSC 3D PRINTING APPLICATIONS

    E-Print Network [OSTI]

    Chen, Tsuhan

    for commercialization 3D Printing Novel Technology Award $10,000 (direct costs) with use of the New CTSC 3D Printing with 3D printing technology in order to rapidly develop novel biomedical products with application) and importance of funding to feasibility of the project Research Plan (use of the CTSC 3D Printing Core Facility

  15. MultiFab : a multi-material 3D printing platform

    E-Print Network [OSTI]

    Ramos-Maltés, Javier Eduardo

    2014-01-01

    This thesis presents the development of MultiFab, a multi-material 3D printing architecture that is high-resolution, scalable, and low-cost. MultiFab enables the 3D printing of parts with materials that interact optically ...

  16. 3D electroplated microstructures fabricated by a novel height control method

    E-Print Network [OSTI]

    Lin, Liwei

    is coated and patterned to open the designated areas for electroplating. Nickel electroplating is performed3D electroplated microstructures fabricated by a novel height control method L.-W. Pan, P. Yuen, L. Lin Abstract A 3D electroplating process by means of pixel- wise, step height control of selective

  17. 3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data

    E-Print Network [OSTI]

    Thompson, Paul

    3D Harmonic Mapping and Tetrahedral Meshing of Brain Imaging Data Yalin Wang1 , Xianfeng Gu2 , Paul algorithm finds a harmonic map from a 3-manifold to a 3D solid sphere and the second is a novel sphere of magnetic resonance images (MRI). A heat flow method is used to solve the volumetric harmonic mapping

  18. Capacity of a 3-D multi-layer optical data storage system , Edwin P. Walkera

    E-Print Network [OSTI]

    Esener, Sadik C.

    Capacity of a 3-D multi-layer optical data storage system Yi Zhanga* , Edwin P. Walkera , Wenyi) Emcore Fiber Optics Components, 1600 Eubank Blvd. SE, Albuquerque, NM 87123 ABSTRACT Storage capacity of a 3-D multi-layer optical data storage system is analyzed. Theoretical analysis of recorded bit size

  19. Numerical aperture influence on 3-D multi-layer optical data storage systems , Edwin P. Walkera

    E-Print Network [OSTI]

    Esener, Sadik C.

    Numerical aperture influence on 3-D multi-layer optical data storage systems Yi Zhanga* , Edwin P storage system is analyzed. Keywords: NA, multi-layer data storage, two-photon recording, capacity) 550-0596, Fax: (858) 550-0917 #12;Numerical aperture influence on 3-D multi-layer optical data storage

  20. 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

  1. 3DString: A Feature String Kernel for 3D Object Classification on Voxelized Data

    E-Print Network [OSTI]

    Kriegel, Hans-Peter

    3DString: A Feature String Kernel for 3D Object Classification on Voxelized Data Johannes AÃ?falg-Maximilians-University Munich, Germany {assfalg|kb|kriegel}@dbs.ifi.lmu.de ABSTRACT Classification of 3D objects remains which allows to combine it with an M-tree for handling of large volumes of data. Classification

  2. SUPERVISED AND UNSUPERVISED MRF BASED 3D SCENE CLASSIFICATION IN MULTIPLE VIEW

    E-Print Network [OSTI]

    SUPERVISED AND UNSUPERVISED MRF BASED 3D SCENE CLASSIFICATION IN MULTIPLE VIEW AIRBORNE OBLIQUE Classification in 3D object space Basic idea Supervised approach Unsupervised approah Experiments: data and results Discussion CONTENTS #12; State-of-the-Art digital camera hardware and processing stimuate

  3. Surface Drawing: Creating Organic 3D Shapes with the Hand and Tangible Tools

    E-Print Network [OSTI]

    Surface Drawing: Creating Organic 3D Shapes with the Hand and Tangible Tools Steven Schkolne organic 3D shapes in a manner which supports the needs and interests of artists. This medium facilitates such as line drawing and painting, Surface Drawing lets users construct shapes through repeated mark- ing

  4. Visualizing Cells and their Connectivity Graphs for CompuCell3D Randy Heiland

    E-Print Network [OSTI]

    Indiana University

    Visualizing Cells and their Connectivity Graphs for CompuCell3D Randy Heiland CREST, Pervasive models that simulate the behavior of different types of interacting biological cells can be a very time consuming and er- ror prone task. CompuCell3D is an open source application that addresses this challenge

  5. Tolerance Analysis of 2-D and 3-D Mechanical Assemblies with Small Kinematic Adjustments

    E-Print Network [OSTI]

    Tolerance Analysis of 2-D and 3-D Mechanical Assemblies with Small Kinematic Adjustments Kenneth W. Chase Spencer P. Magleby Department of Mechanical Engineering Brigham Young University Provo, Utah the Direct Linearization Method (DLM), is presented for tolerance analysis of 2-D and 3-D mechanical

  6. Parallax Photography: Creating 3D Cinematic Effects from Stills Ke Colin Zheng

    E-Print Network [OSTI]

    O'Brien, James F.

    Parallax Photography: Creating 3D Cinematic Effects from Stills Ke Colin Zheng University field with extracted depth information into a cinematic effect with sim- ulated, smooth camera motion that exhibits a sense of 3D parallax. We develop a taxonomy of the cinematic conventions of these ef- fects

  7. LASER SCANNING AND NOISE REDUCTION APPLIED TO 3D ROAD SURFACE ANALYSIS

    E-Print Network [OSTI]

    LASER SCANNING AND NOISE REDUCTION APPLIED TO 3D ROAD SURFACE ANALYSIS Thorsten Schulz and Hilmar, EAWAG Email: michele.steiner@eawag.ch Abstract: Terrestrial laser scanning was applied to acquire 3D the catchment area of a road with respect to a pilot plant. As laser scanning requires only a few minutes

  8. FishTank Fitts: A Desktop VR Testbed for Evaluating 3D Pointing Techniques

    E-Print Network [OSTI]

    Stürzlinger, Wolfgang

    FishTank Fitts: A Desktop VR Testbed for Evaluating 3D Pointing Techniques Abstract We present a desktop or "fish tank" virtual reality system for evaluating 3D selection techniques. Motivated version of the ISO 9241-9 pointing task. Targets can be displayed stereoscopically, with head

  9. Kirchhoff prestack depth migration in 3-D models: Comparison of triclinic anisotropy

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Kirchhoff prestack depth migration in 3-D models: Comparison of triclinic anisotropy with simpler the Kirchhoff prestack depth migration to the calculation of migrated sections in 3-D simple anisotropic. We test Kirchhoff prestack depth migration in velocity models with different types of anisotropy

  10. Stereopsis and 3D Surface Perception by Spiking Neurons in Laminar Cortical Circuits

    E-Print Network [OSTI]

    Grossberg, Stephen

    Stereopsis and 3D Surface Perception by Spiking Neurons in Laminar Cortical Circuits: A Method, USA Running title: Spiking laminar cortical model of depth perception Neural Networks, in pressNAPSE program of DARPA (HR0011-09-C- 0001). #12;2 Abstract A laminar cortical model of stereopsis and 3D surface

  11. INCORPORATING GEOMETRIC FEATURE VARIATION WITH KINEMATIC TOLERANCE ANALYSIS OF 3D ASSEMBLIES

    E-Print Network [OSTI]

    - wide user base. In an effort to greatly increase the proportion of companies with variation analysisINCORPORATING GEOMETRIC FEATURE VARIATION WITH KINEMATIC TOLERANCE ANALYSIS OF 3D ASSEMBLIES VARIATION WITH KINEMATIC TOLERANCE ANALYSIS OF 3D ASSEMBLIES Jeffrey G. Dabling Department of Mechanical

  12. 3D Systems Packaging Research Center AN INDUSTRY-ACADEMIA CONSORTIUM

    E-Print Network [OSTI]

    Li, Mo

    3D Systems Packaging Research Center AN INDUSTRY-ACADEMIA CONSORTIUM 3D Systems Packaging Research.prc.gatech.edu · prcinfo@ece.gatech.edu 60GHz Design and Test Methods for Packaging of 60 GHz Front-End Modules A worldwide for the implementation of the mm-wave front- end. However, little work has been done on the components and packaging side

  13. 3D Systems Packaging Research Center DELIVERING BREAKTHROUGH IDEAS TO INDUSTRY

    E-Print Network [OSTI]

    Li, Mo

    3D Systems Packaging Research Center DELIVERING BREAKTHROUGH IDEAS TO INDUSTRY 3D Systems Packaging and Packages What ·Low-costandhighperformanceglassandsiliconinterposerswith 10x higher I/Os than organic packages at 2-10x lower cost per mm2 than wafer Si interposers for smart mobile and industrial

  14. 3D Systems Packaging Research Center DELIVERING BREAKTHROUGH IDEAS TO INDUSTRY

    E-Print Network [OSTI]

    Li, Mo

    3D Systems Packaging Research Center DELIVERING BREAKTHROUGH IDEAS TO INDUSTRY 3D Systems Packaging and IPDs, highly- miniaturized fine-pitch chip-to-package and package-to- packageinterconnections ·Ultra-fine pitch die-to-package Cu-Cu interconnections and assembly ·EmbeddedthinIPDs Previous Major

  15. LONGITUDINAL MULTIPLE SCLEROSIS LESION SEGMENTATION USING 3D CONVOLUTIONAL NEURAL NETWORKS

    E-Print Network [OSTI]

    Ramanathan, M.

    LONGITUDINAL MULTIPLE SCLEROSIS LESION SEGMENTATION USING 3D CONVOLUTIONAL NEURAL NETWORKS Suthirth with dice scores comparable to the inter-rater variability. Index Terms-- Multiple Sclerosis, 3D Convolutional Neural Networks, Deep Learning, Neuroimaging 1. INTRODUCTION Multiple Sclerosis (MS) is a chronic

  16. Collapsible 3D GIS Visualization Suwen Wang, Robert R. Beiko, Stephen Brooks

    E-Print Network [OSTI]

    Brooks, Stephen

    Collapsible 3D GIS Visualization Suwen Wang, Robert R. Beiko, Stephen Brooks Dalhousie University. Introduction As an essential component of GIS systems, visualization helps the user comprehend and analyze and workstations, 3D rendering has become widespread which has allowed GIS visualization research to explore

  17. DOI: 10.1002/adma.200600769 Introducing Defects in 3D Photonic Crystals

    E-Print Network [OSTI]

    Braun, Paul

    in all directions, a 3D PhC with an omnidirec- tional, or complete PBG (cPBG) is required. cPBG materials. Additionally, cPBG structures must be fabricated from optically transparent materials with a high dielectric. Because of the materials restrictions and stringent 3D fabrication requirements, there are only a small

  18. Assembly and Functionalization of 3D Photonic Crystals X. Yu, P.V. Braun

    E-Print Network [OSTI]

    Braun, Paul

    Assembly and Functionalization of 3D Photonic Crystals X. Yu, P.V. Braun Department of Materials manipulation, and DNA-directed assembly as pathways to complex 3D structures. INTRODUCTION Metallic photonic to such structures in an efficient fashion, be this introduction of aperiodic features such as optical cavities

  19. FABRICATION AND CHARACTERIZATION OF 3-D ALL POLYMER FLEXIBLE SOLAR CELL

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    FABRICATION AND CHARACTERIZATION OF 3-D ALL POLYMER FLEXIBLE SOLAR CELL _______________ A Thesis and Characterization of 3-D All Polymer Flexible Solar Cell by Krishna Ashwinbhai Desai Master of Science in Mechanical (Polyethylene terephthalate) as a flexible substrate, a potentially wearable organic solar cell is enabled

  20. A 3-D Photo Forensic Analysis of the Lee Harvey Oswald Backyard Photo

    E-Print Network [OSTI]

    Bucci, David J.

    A 3-D Photo Forensic Analysis of the Lee Harvey Oswald Backyard Photo Hany Farid Department of the Oswald photos to determine if such claims of tampering are warranted. Keywords: Photo Forensics, 3-D Photo Analysis 1. Introduction United States President John F. Kennedy was assassinated on Novem- ber 22

  1. A 3-D STABILITY ANALYSIS OF LEE HARVEY OSWALD IN THE BACKYARD PHOTO

    E-Print Network [OSTI]

    Bucci, David J.

    A 3-D STABILITY ANALYSIS OF LEE HARVEY OSWALD IN THE BACKYARD PHOTO Srivamshi Pittala, Emily Kennedy. Despite the long passage of time, it is still argued that the famous backyard photo of Oswald others, that Oswald's pose in the photo is physically implausible. We describe a detailed 3-D stability

  2. Detection and extraction of fault surfaces in 3D seismic data Israel Cohen1

    E-Print Network [OSTI]

    Cohen, Israel

    for seismic interpretation. INTRODUCTION Fault surfaces are common subterranean structures that are asso that are unrelated to faults. Furthermore, creating a consistent geological interpretation from large 3D-seismicDetection and extraction of fault surfaces in 3D seismic data Israel Cohen1 , Nicholas Coult2

  3. You are here: Home / News / 3D view of 1D nanostructures More services

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    create tool to put the lid on solar power fluctuations Variability law for solar panels News 3D view of 1You are here: Home / News / 3D view of 1D nanostructures Share More services Related Links of nanogenerators based on GaN nanowires, for powering of self-powered nanodevices. This story is reprinted from

  4. On the transition between 2D and 3D dunes JEREMY G. VENDITTI*1

    E-Print Network [OSTI]

    Venditti, Jeremy G.

    On the transition between 2D and 3D dunes JEREMY G. VENDITTI*1 , MICHAEL CHURCH* and SEAN J the processes that transform the bed configuration from two-dimensional (2D) dunes to three- dimensional (3D) dunes. A narrowly graded, 500 lm size sand was subjected to a 0Æ15 m deep, non-varying mean flow ranging

  5. Reconstructing Plants in 3D from a Single Image using Analysis-by-Synthesis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    from images. However, due to high complexity of plant topology, dedicated methods for generating 3D plant models must be devised. We propose to generate a 3D model of a plant, using an analysis of the generative model (main branching structure of the plant and foliage), we produce a series of candidate models

  6. Measuring 3D Plant Growth Using Optical Flow J.L. Barron A. Liptay

    E-Print Network [OSTI]

    Barron, John

    1 Measuring 3D Plant Growth Using Optical Flow J.L. Barron A. Liptay Dept. of Computer Science is presented for measuring 3D plant growth using the optical flow computed on an image sequence of a growing made by projecting the plant's orthogonal image onto a mirror oriented at 45 ffi with respect

  7. A High-Resolution Spontaneous 3D Dynamic Facial Expression Database

    E-Print Network [OSTI]

    Cohn, Jeffrey F.

    A High-Resolution Spontaneous 3D Dynamic Facial Expression Database Xing Zhang1 , Lijun Yin1 to address. Most publically available databases are limited to 2D static images or video of posed facial video archives are needed. We present a newly developed 3D video database of spontaneous facial

  8. 3D hydrodynamical and radiative transfer modeling of Eta Carinae's colliding winds

    E-Print Network [OSTI]

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

    2015-01-01

    We present results of full 3D hydrodynamical and radiative transfer simulations of the colliding stellar winds in the massive binary system Eta Carinae. We accomplish this by applying the SimpleX algorithm for 3D radiative transfer on an unstructured Voronoi-Delaunay grid to recent 3D smoothed particle hydrodynamics (SPH) simulations of the binary colliding winds. We use SimpleX to obtain detailed ionization fractions of hydrogen and helium, in 3D, at the resolution of the original SPH simulations. We investigate several computational domain sizes and Luminous Blue Variable primary star mass-loss rates. We furthermore present new methods of visualizing and interacting with output from complex 3D numerical simulations, including 3D interactive graphics and 3D printing. While we initially focus on Eta Car, the methods employed can be applied to numerous other colliding wind (WR 140, WR 137, WR 19) and dusty 'pinwheel' (WR 104, WR 98a) binary systems. Coupled with 3D hydrodynamical simulations, SimpleX simulatio...

  9. An estimation algorithm for 3-D pose measurement using redundant ultrasonic sensors 

    E-Print Network [OSTI]

    Branum, Brian Howell

    1998-01-01

    precise precise but expensive sensing equipment to attain range measuring instruments to triangulate an accurate 3-D more sensors than are necessary for a single 3-D pose measurement. If the pose by including expected errors could be modeled with a...

  10. FPGA-BASED 3D GRAPHICS PROCESSOR WITH PCI-BUS INTERFACE, AN IMPLEMENTATION CASE

    E-Print Network [OSTI]

    FPGA-BASED 3D GRAPHICS PROCESSOR WITH PCI-BUS INTERFACE, AN IMPLEMENTATION CASE STUDY Hans Holten of a 3D graphics processor. Practical design issues dealing with a PCI-bus based reconfigurable FPGA prototyping board are discussed. PCI drivers and bandwidth issues are discussed. An analog VGA video output

  11. Static Ocular Counterroll Is Implemented Through the 3-D Neural Integrator J. Douglas Crawford,13

    E-Print Network [OSTI]

    Vilis, Tutis

    report Static Ocular Counterroll Is Implemented Through the 3-D Neural Integrator J. Douglas. Static ocular counterroll is implemented through the 3-D neural integrator. J Neurophysiol 90: 2777­2784, 2003; 10.1152/jn.00231.2003. Static head roll about the naso-occipital axis is known to produce an oppo

  12. Interacting with Microseismic Visualizations Microseismic visualization systems present complex 3D

    E-Print Network [OSTI]

    Greenberg, Saul

    Interacting with Microseismic Visualizations Abstract Microseismic visualization systems present that information. Author Keywords 3D microseismic visualizations; proxemic interactions ACM Classification Keywords@ucalgary.ca Figure 1. Microseismic data #12;Introduction Microseismic data is multi-dimensional data containing 3D

  13. GEOMETRIC CHARACTERIZATION AND OPTIMIZATION OF 3D ORGANIC FLEXIBLE SOLAR CELLS

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    GEOMETRIC CHARACTERIZATION AND OPTIMIZATION OF 3D ORGANIC FLEXIBLE SOLAR CELLS Characterization and Optimization of 3D Organic Flexible Solar Cells by Ashish K. Gaikwad Master of Science of flexible organic solar cells, micro-fabricated using novel microfabrication procedures. A fully functional

  14. 3D Model Atmospheres for Extremely Low-Mass White Dwarfs

    E-Print Network [OSTI]

    Tremblay, P -E; Kilic, M; Ludwig, H -G; Steffen, M; Freytag, B; Hermes, J J

    2015-01-01

    We present an extended grid of mean three-dimensional (3D) spectra for low-mass, pure-hydrogen atmosphere DA white dwarfs (WDs). We use CO5BOLD radiation-hydrodynamics 3D simulations covering Teff = 6000-11,500 K and logg = 5-6.5 (cgs units) to derive analytical functions to convert spectroscopically determined 1D temperatures and surface gravities to 3D atmospheric parameters. Along with the previously published 3D models, the 1D to 3D corrections are now available for essentially all known convective DA WDs (i.e., logg = 5-9). For low-mass WDs, the correction in temperature is relatively small (a few per cent at the most), but the surface gravities measured from the 3D models are lower by as much as 0.35 dex. We revisit the spectroscopic analysis of the extremely low-mass (ELM) WDs, and demonstrate that the 3D models largely resolve the discrepancies seen in the radius and mass measurements for relatively cool ELM WDs in eclipsing double WD and WD + milli-second pulsar binary systems. We also use the 3D cor...

  15. Electrode Placement Strategies for 3D EIT B.M. Graham, A. Adler

    E-Print Network [OSTI]

    Adler, Andy

    , 4205 node FEM. Both meshes were designed to model a 28cm diameter by 28cm high cylindrical tank phantom on a 3D medium for the purpose of calculating 3D reconstructions using clinical equipment intended attempts to calculate a stable and accurate image of the conductivity or conductivity change within

  16. Integrated Optical Orbital Angular Momentum Multiplexing Device using 3-D Waveguides and a Silica PLC

    E-Print Network [OSTI]

    Yoo, S. J. Ben

    PLC Binbin Guan,1 Ryan P. Scott,1 Nicolas K. Fontaine,2 Tiehui Su,1 Carlo Ferrari,3 Mark Cappuzzo,3 on a silica planar lightwave circuit (PLC) coupled to a 3-D photonic circuit that efficiently generates planar lightwave circuit (PLC) with a silica 3-D PIC that supports up to 15 OAM modes, both TE and TM

  17. SIMULATION OF GEOMETRY AND SHADOW EFFECTS IN 3D ORGANIC POLYMER SOLAR CELLS

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    levels of Solar panels and new production capacity is driving solar PV prices lower and thereby, bringingSIMULATION OF GEOMETRY AND SHADOW EFFECTS IN 3D ORGANIC POLYMER SOLAR CELLS OF THE THESIS Simulation of Geometry and Shadow Effects in 3D Organic Polymer Solar Cells by Mihir Prakashbhai

  18. FILAMENT CHANNEL STRUCTURES IN A Si IV LINE RELATED TO A 3D MAGNETIC MODEL

    E-Print Network [OSTI]

    Aulanier, Guillaume

    FILAMENT CHANNEL STRUCTURES IN A Si IV LINE RELATED TO A 3D MAGNETIC MODEL T. A. KUCERA1,, G. A recent 3D magnetic model of filament support (Aulanier and Démoulin, 1998) has shown that specific of a filament observed in H and Ca II lines with the German telescope VTT in Tenerife on 25 September 1996

  19. Camera based texture mapping: 3D applications for 2D images 

    E-Print Network [OSTI]

    Bowden, Nathan Charles

    2005-08-29

    . The purpose of this artist??s research is the development of an original method of parenting perspective projections to three-dimensional (3D) cameras, specifically tailored to result in 3D matte paintings. Research includes the demonstration of techniques...

  20. TSV Stress-Aware ATPG for 3D Stacked ICs Sergej Deutsch, Krishnendu Chakrabarty

    E-Print Network [OSTI]

    Lim, Sung Kyu

    TSV Stress-Aware ATPG for 3D Stacked ICs Sergej Deutsch, Krishnendu Chakrabarty Department--Thermo-mechanical stress due to TSV fabrication pro- cesses is a major concern in 3D integration. TSV stress not only are generated with TSV stress-oblivious circuit models. We evaluate the impact on TSV stress on delay testing

  1. Estimation of 3D rotation for a satellite from Sun sensors

    E-Print Network [OSTI]

    Estimation of 3D rotation for a satellite from Sun sensors L. Magnis N. Petit MINES Paris: This paper exposes a method to estimate the rotation of a satellite by means of simple Sun sensors located of the Sun. The method is a 3D generalization of an approach originally proposed, using the same setup

  2. A New Shape Benchmark for 3D Object , Afzal Godil1

    E-Print Network [OSTI]

    models [1], Protein Data Bank for biological macromolecules [2],CAESAR for Anthropometry [3], the AIM area of research. Traditional text based search engines are widely used in many 3D repositories of shapes is incomplete or not available in many cases. thus, a number of 3D shapes based search engines

  3. The Soprants: conceptual and technical framework for a 3D interactive video game 

    E-Print Network [OSTI]

    Nakamura, Tatsuya

    2006-10-30

    in the game behave similar to leaf-cutter ants. A 3D game environment based on a real ant colony nest is created and used for prototyping the game. Insect behavior based on behavior of real ants is implemented in an interactive 3D environment. The cinematic...

  4. MICROMACHINED 3-D GLASS-BLOWN WINEGLASS STRUCTURES FOR VIBRATORY MEMS APPLICATIONS

    E-Print Network [OSTI]

    Chen, Zhongping

    improvement in time constant over the complete glass-blown sphere. KEYWORDS: 3-D micro-machining, micro glass-blowingMICROMACHINED 3-D GLASS-BLOWN WINEGLASS STRUCTURES FOR VIBRATORY MEMS APPLICATIONS D. Senkal, I level glassblowing and blow molding techniques have a potential to provide low surface roughness, highly

  5. Accurate 3D Footwear Impression Recovery From Photographs Fernanda A. Andalo

    E-Print Network [OSTI]

    Taubin, Gabriel

    , or to narrow down the number of suspects. Casting 3D footwear impressions is a long-standing standard to obtain and width, and are most commonly found outdoors in soil, sand, and snow [1]. The details that can largely vary. In recent years, the standard method for capturing these 3D prints is by casting using

  6. Weighting Features to Recognize 3D Patterns of Electron Density in X-ray Protein Crystallography

    E-Print Network [OSTI]

    Ioerger, Thomas R.

    Weighting Features to Recognize 3D Patterns of Electron Density in X-ray Protein Crystallography features to recognize 3D patterns of electron density to determine protein structures. We present SLIDER, Texas A&M University 2 Department of Biochemistry & Biophysics, Texas A&M University 1 {kgopal

  7. 3D MAPPING FOR MOBILE ROBOTS USING INTERACTIVE VIRTUAL WORLDS AND INTERNET TELEOPERATION

    E-Print Network [OSTI]

    Minguez, Javier

    3D MAPPING FOR MOBILE ROBOTS USING INTERACTIVE VIRTUAL WORLDS AND INTERNET TELEOPERATION J. M N° 2508, San Pedro Zacatenco, Mexico D.F., MEXICO jibarra@ctrl.cinvestav.mx ** Robotics and Real, is actualized on line with 3D models of the objects present in the real workplace. Internet interaction between

  8. Lobe-based Estimating Ventilation and Perfusion from 3D CT scans of the Lungs

    E-Print Network [OSTI]

    Warren, Joe

    Lobe-based Estimating Ventilation and Perfusion from 3D CT scans of the Lungs Travis McPhail Joe Warren Rice University Thomas Guerrero, M.D. M.D. Anderson Cancer Center Introduction Lung cancer for lung cancer includes surgical removal or radiation therapy. 3D imaging technologies such CT, MRI

  9. GPU-BASED FRAMEWORK FOR DISTRIBUTED INTERACTIVE 3D VISUALIZATION OF MULTIMODAL REMOTE SENSING DATA

    E-Print Network [OSTI]

    Blanz, Volker

    GPU-BASED FRAMEWORK FOR DISTRIBUTED INTERACTIVE 3D VISUALIZATION OF MULTIMODAL REMOTE SENSING DATA,kolb}@fb12.uni-siegen.de ABSTRACT Interactive visualization of remote sensing data allows the user to explore. In this paper, we present a 3D visualization framework for interactive exploration of remote sensing data. Data

  10. InvenTcl: Interpretive 3D graphics using Open Inventor and Tcl/[incr Tcl

    E-Print Network [OSTI]

    Fels, Sidney S.

    InvenTcl: Interpretive 3D graphics using Open Inventor and Tcl/[incr Tcl] Sidney Fels, Silvio Esser­02, JAPAN fels@mic.atr.co.jp +81 774 95 1448 fax: +81 774 95 1408 Abstract Open Inventor is an object oriented 3D graphics toolkit written in C++. Because Open Inventor is written in C++, typical user code

  11. InvenTcl: Interpretive 3D graphics using Open Inventor and Tcl/[incr Tcl

    E-Print Network [OSTI]

    British Columbia, University of

    InvenTcl: Interpretive 3D graphics using Open Inventor and Tcl/[incr Tcl] Sidney Fels, Silvio Esser-02, JAPAN fels@mic.atr.co.jp +81 774 95 1448 fax: +81 774 95 1408 Abstract Open Inventor is an object oriented 3D graphics toolkit written in C++. Because Open Inventor is written in C++, typical user code

  12. Eurographics Workshop on 3D Object Retrieval (2015), pp. 19 SHREC'15 Track

    E-Print Network [OSTI]

    Martin, Ralph R.

    2015-01-01

    Eurographics Workshop on 3D Object Retrieval (2015), pp. 1­9 (Editors) SHREC'15 Track: Canonical Forms for Non-Rigid 3D Shape Retrieval David Pickup1 , Xianfang Sun1 , Paul L. Rosin1 , Ralph R. Martin1, China 3 South China University of Technology, China Track organisers Abstract We present a new

  13. Incorporation of 3D Shortwave Radiative Effects within the Weather Research and Forecasting Model

    SciTech Connect (OSTI)

    O'Hirok, W.; Ricchiazzi, P.; Gautier, C.

    2005-03-18

    A principal goal of the Atmospheric Radiation Measurement (ARM) Program is to understand the 3D cloud-radiation problem from scales ranging from the local to the size of global climate model (GCM) grid squares. For climate models using typical cloud overlap schemes, 3D radiative effects are minimal for all but the most complicated cloud fields. However, with the introduction of ''superparameterization'' methods, where sub-grid cloud processes are accounted for by embedding high resolution 2D cloud system resolving models within a GCM grid cell, the impact of 3D radiative effects on the local scale becomes increasingly relevant (Randall et al. 2003). In a recent study, we examined this issue by comparing the heating rates produced from a 3D and 1D shortwave radiative transfer model for a variety of radar derived cloud fields (O'Hirok and Gautier 2005). As demonstrated in Figure 1, the heating rate differences for a large convective field can be significant where 3D effects produce areas o f intense local heating. This finding, however, does not address the more important question of whether 3D radiative effects can alter the dynamics and structure of a cloud field. To investigate that issue we have incorporated a 3D radiative transfer algorithm into the Weather Research and Forecasting (WRF) model. Here, we present very preliminary findings of a comparison between cloud fields generated from a high resolution non-hydrostatic mesoscale numerical weather model using 1D and 3D radiative transfer codes.

  14. Superquadrics based 3D object representation of automotive parts utilizing part decomposition

    E-Print Network [OSTI]

    Abidi, Mongi A.

    Superquadrics based 3D object representation of automotive parts utilizing part decomposition Yan representation strategy for automotive parts in this paper. Starting from a 3D watertight surface model, a part, in our case automotive parts , efficiently into meaningful single parts. And our proposed superquadric

  15. Multilayer Hybrid Visualizations to Support 3D GIS Stephen Brooks a,*

    E-Print Network [OSTI]

    Brooks, Stephen

    1 Multilayer Hybrid Visualizations to Support 3D GIS Stephen Brooks a,* , Jacqueline L. Whalley b present a unique hybrid visualization system for spatial data. Although some existing 3D GIS systems offer@cs.dal.ca, jwhalley@aut.ac.nz. #12;2 1. Introduction In the past, most geographical information systems (GIS) were

  16. STATISTICAL AND 3D NONLINEAR FINITE ELEMENT ANALYSIS OF SCHLEGEIS DAM

    E-Print Network [OSTI]

    Balaji, Rajagopalan

    STATISTICAL AND 3D NONLINEAR FINITE ELEMENT ANALYSIS OF SCHLEGEIS DAM VICTOR SAOUMA, ERIC HANSEN is composed of two parts. First a statistical analysis of the dam crest displacement is performed, along with a prediction for the years 2000-2001. Then a 3D finite element analysis of Schlegeis dam is performed using

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

    E-Print Network [OSTI]

    Painting-to-3D Model Alignment Via Discriminative Visual Elements Mathieu Aubry INRIA1 / TU M align arbitrary 2D de- pictions of an architectural site, including drawings, paintings and historical, we face a hard search problem: the number of possible align- ments of the painting to a large 3D

  18. A Novel 3D Segmentation of Vertebral Bones from Volumetric CT Images Using Graph Cuts

    E-Print Network [OSTI]

    Farag, Aly A.

    of the vertebral bones of spine column with a particular focus on the lumbar spine. The primary goalA Novel 3D Segmentation of Vertebral Bones from Volumetric CT Images Using Graph Cuts Melih S to the Vertebral bodies (VBs). In this paper, we present a novel and fast 3D segmentation framework of VBs

  19. THE APPLICATIONS FOR 3D INVERSE OPAL MICROSTRUCTURES TAE WAN KIM

    E-Print Network [OSTI]

    Braun, Paul

    THE APPLICATIONS FOR 3D INVERSE OPAL MICROSTRUCTURES BY TAE WAN KIM THESIS Submitted-D micro structures applications, and in particular 3-D inverse opal micro structures made using structures. This inverse opal micro structure can not only be used for micro electromechanical systems (MEMS

  20. Volumetric Illustration: Designing 3D Models with Internal Textures Shigeru Owada

    E-Print Network [OSTI]

    Nielsen, Frank

    Volumetric Illustration: Designing 3D Models with Internal Textures Shigeru Owada Frank Nielsen This paper presents an interactive system for designing and browsing volumetric illustrations. Volumetric, instead of sampling from a complete 3D RGB volumetric representation directly. This simplifies the design

  1. Determination of cloud liquid water distribution using 3D cloud tomography

    E-Print Network [OSTI]

    Determination of cloud liquid water distribution using 3D cloud tomography Dong Huang,1 Yangang Liu; published 2 July 2008. [1] The cloud microwave tomography method for remotely retrieving 3D distributions of cloud Liquid Water Content (LWC) was originally proposed by Warner et al. in the 1980s but has lain

  2. Nanocomposite protective coatings for battery anodes

    DOE Patents [OSTI]

    Lemmon, John P; Xiao, Jie; Liu, Jun

    2014-01-21

    Modified surfaces on metal anodes for batteries can help resist formation of malfunction-inducing surface defects. The modification can include application of a protective nanocomposite coating that can inhibit formation of surface defects. such as dendrites, on the anode during charge/discharge cycles. For example, for anodes having a metal (M'), the protective coating can be characterized by products of chemical or electrochemical dissociation of a nanocomposite containing a polymer and an exfoliated compound (M.sub.a'M.sub.b''X.sub.c). The metal, M', comprises Li, Na, or Zn. The exfoliated compound comprises M' among lamella of M.sub.b''X.sub.c, wherein M'' is Fe, Mo, Ta, W, or V, and X is S, O, or Se.

  3. 3-D visualisation and interpretation of seismic attributes extracted from large 3-D seismic datasets: Subregional and prospect evaluation, deepwater Nigeria

    SciTech Connect (OSTI)

    Sola, M.; Haakon Nordby, L.; Dailey, D.V.; Duncan, E.A. (BP and Statoil Alliance, Stavanger (Norway))

    1996-01-01

    High resolution 3-D visualization of horizon interpretation and seismic attributes from large 3-D seismic surveys in deepwater Nigeria has greatly enhanced the exploration team's ability to quickly recognize prospective segments of subregional and prospect specific scale areas. Integrated workstation generated structure, isopach and extracted horizon consistent, interval and windowed attributes are particularly useful in illustrating the complex structural and stratigraphical prospectivity of deepwater Nigeria. Large 3-D seismic volumes acquired over 750 square kilometers can be manipulated within the visualization system with attribute tracking capability that allows for real time data interrogation and interpretation. As in classical seismic stratigraphic studies, pattern recognition is fundamental to effective depositions facies interpretation and reservoir model construction. The 3-D perspective enhances the data interpretation through clear representation of relative scale, spatial distribution and magnitude of attributes. In deepwater Nigeria, many prospective traps rely on an interplay between syndepositional structure and slope turbidite depositional systems. Reservoir systems in many prospects appear to be dominated by unconfined to moderately focused slope feeder channel facies. These units have spatially complex facies architecture with feeder channel axes separated by extensive interchannel areas. Structural culminations generally have a history of initial compressional folding with late in extensional collapse and accommodation faulting. The resulting complex trap configurations often have stacked reservoirs over intervals as thick as 1500 meters. Exploration, appraisal and development scenarios in these settings can be optimized by taking full advantage of integrating high resolution 3-D visualization and seismic workstation interpretation.

  4. The role of 3-D interactive visualization in blind surveys of HI in galaxies

    E-Print Network [OSTI]

    Punzo, D; Roerdink, J B T M; Oosterloo, T A; Ramatsoku, M; Verheijen, M A W

    2015-01-01

    Upcoming HI surveys will deliver large datasets, and automated processing using the full 3-D information (two positional dimensions and one spectral dimension) to find and characterize HI objects is imperative. In this context, visualization is an essential tool for enabling qualitative and quantitative human control on an automated source finding and analysis pipeline. We discuss how Visual Analytics, the combination of automated data processing and human reasoning, creativity and intuition, supported by interactive visualization, enables flexible and fast interaction with the 3-D data, helping the astronomer to deal with the analysis of complex sources. 3-D visualization, coupled to modeling, provides additional capabilities helping the discovery and analysis of subtle structures in the 3-D domain. The requirements for a fully interactive visualization tool are: coupled 1-D/2-D/3-D visualization, quantitative and comparative capabilities, combined with supervised semi-automated analysis. Moreover, the sourc...

  5. New hybrid polysilane/polysiloxane nanocomposites

    SciTech Connect (OSTI)

    Jamison, G.M.; Loy, D.A. [Sandia National Labs., Albuquerque, NM (United States); [Stanford Univ., CA (United States); Opperman, K.A.; Beach, J.V. [Sandia National Labs., Albuquerque, NM (United States)

    1996-12-31

    (Alkoxysilyl)propyl-functionalized polysilanes 2a-c are generated by the free radical-initiated hydrosilation of allylsilanes 1a-c with polyphenylsilane. The latent sol-gel alkoxysilane residues undergo hydrolysis-poly-condensation under acid-catalyzed conditions to form new hybrid organic-inorganic nanocomposites 3a-c, which can be processed as xerogels or aerogels. Spectral and bulk characterization of the new materials will be discussed.

  6. Asphaltenes-based polymer nano-composites

    DOE Patents [OSTI]

    Bowen, III, Daniel E

    2013-12-17

    Inventive composite materials are provided. The composite is preferably a nano-composite, and comprises an asphaltene, or a mixture of asphaltenes, blended with a polymer. The polymer can be any polymer in need of altered properties, including those selected from the group consisting of epoxies, acrylics, urethanes, silicones, cyanoacrylates, vulcanized rubber, phenol-formaldehyde, melamine-formaldehyde, urea-formaldehyde, imides, esters, cyanate esters, allyl resins.

  7. Polymer-Metal Nanocomposites via Polymer Thin Film

    E-Print Network [OSTI]

    Shyamasundar, R.K.

    Polymer-Metal Nanocomposites via Polymer Thin Film T. P. Radhakrishnan School of Chemistry, University of Hyderabad Polymer-metal nanocomposite thin films are versatile materials that not only Chemistry Inside a Polymer Thin Film P. Radhakrishnan School of Chemistry, University of Hyderabad metal

  8. 3D Printing Meets Computational Astrophysics: Deciphering the Structure of Eta Carinae's Inner Colliding Winds

    E-Print Network [OSTI]

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

    2015-01-01

    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...

  9. 3D and 4D magnetic susceptibility tomography based on complex MR images

    DOE Patents [OSTI]

    Chen, Zikuan; Calhoun, Vince D

    2014-11-11

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

  10. Transport properties of nanocomposite and its simulation with L-R-C circuit

    SciTech Connect (OSTI)

    Gangopadhyay, Arnab Sarkar, Aditi Sarkar, A.

    2014-04-24

    The nano particles are represented in this communication by L-R-C equivalent circuit. The dc current voltage characteristics (CVC) of the proposed circuit have simulated using Circuit-Maker ® 2000. Experimental investigation on ZnO nano-composite with capping material gum acacia shows similar CVC. NPs are represented by C-R combinations to manifest the Coulomb blockade effect of a quantum dot. The capping material is represented by an inductor along with a resistance in series. Nine NPs with capping matrix are simulated. The dc current voltage characteristics (CVC) and gross feature of polarization nature obtained by experiment and simulation study are consistent.

  11. 3D-COSTAR: A Cost Model for 3D Stacked ICs Abstract--Selecting appropriate and efficient test flow for a

    E-Print Network [OSTI]

    , packaging and logistics (e.g. related to shipping wafers between a foundry and a test house); and provides-SIC by an Integrated Device Manufactures (IDM) and a fab-less company. For the fab-less company, we assume that each to their manufacturing process, 3D-SICs provide several test moments such as before stacking, during manufacturing

  12. INFILLING OF SPARSE 3D SEISMIC DATA FOR 3D FOCUSSING OPERATOR A. Gisolf * , M.J. van de Rijzen and D.J. Verschuur

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    , and from the model the correct migration operators, these data-sets can be imaged very well by applying the 3D migration operators in a domain where full areal coverage is obtained, usually a common offset steps, focussing shots and receivers separately in depth-points called Common Focus Points (CFP), using

  13. Design of electronics for a high-resolution, multi-material, and modular 3D printer

    E-Print Network [OSTI]

    Kwan, Joyce G

    2013-01-01

    Electronics for a high-resolution, multi-material, and modular 3D printer were designed and implemented. The driver for a piezoelectric inkjet print head can fire its nozzles with one of three droplet sizes ranging from 6 ...

  14. NUMERICAL MODELING OF 3D ORGANIC SOLAR CELLS Presented to the

    E-Print Network [OSTI]

    Kassegne, Samuel Kinde

    .2 Physical Process in Polymer: Fullerene Build Heterojunction Solar CellsNUMERICAL MODELING OF 3D ORGANIC SOLAR CELLS _______________ A Thesis Presented to the Faculty Solar Cells by Anurag Kaushik Master of Science in Electrical Engineering San Diego State University

  15. Researchers find 3-D printed parts to provide low-cost, custom...

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

    Researchers find 3-D printed parts to provide low-cost, custom alternatives for laboratory equipment By Raphael Rosen February 26, 2015 Tweet Widget Google Plus One Share on...

  16. Harvesting RNA from 3-D Acinar Cultures 1) Aspirate the media from the wells for harvesting.

    E-Print Network [OSTI]

    Harvesting RNA from 3-D Acinar Cultures 1) Aspirate the media from the wells for harvesting. 2) Add for 15 minutes at room temperature with approximately 20 l DEPC water (for 4 wells of an 8 well chamber

  17. On-machine 3D vision system for machining setup modeling

    E-Print Network [OSTI]

    Zhang, Xi; Tian, Xiaodong; Yamazaki, Kazuo

    2010-01-01

    3 ORIGINAL ARTICLE On-machine 3D vision system for machiningIn computer numerical control machine tools, using machiningIn this paper, an on-machine vision system is presented to

  18. DC characterization and 3D modelling of a triangular, epoxy-impregnated high temperature superconducting coil.

    E-Print Network [OSTI]

    Hu, D.; Ainslie, Mark D.; Rush, J. P.; Durrell, J. H.; Zou, J.; Raine, M. J.; Hampshire, D. P.

    2015-04-24

    is modelled based on the H -formulation using a new three-dimensional (3D) technique that utilizes the real superconducting layer thickness, and this model allows simulation of the actual geometrical layout of the HTS coil structure. Detailed information...

  19. Critiquing the Masters: Applying 3D Production Lighting Principles to Famous 2D Works of Art 

    E-Print Network [OSTI]

    Ford, Angelique

    2012-10-19

    This thesis demonstrates the effects of applying lighting principles developed for 3D computer graphics production to well-known historical 2D paintings. The visual analysis and cinematographic direction is derived from the iterative review...

  20. FastStokes : a fast 3-D fluid simulation program for micro-electro-mechanical systems

    E-Print Network [OSTI]

    Wang, Xin, 1972 Jan. 8-

    2002-01-01

    We have developed boundary integral equation formulas and a corresponding fast 3-D Stokes flow simulation program named FastStokes to accurately simulate viscous drag forces on geometrically complicated MEMS (micro- electro- ...