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We encourage you to perform a real-time search of NLEBeta
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1

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

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

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

2

3D2D3D photonic crystal heterostructures fabricated by direct laser writing  

E-Print Network [OSTI]

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

John, Sajeev

3

3D Laser Imaging at Highway Speed Kelvin CP Wang  

E-Print Network [OSTI]

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

4

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

E-Print Network [OSTI]

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

Hack, Robert

5

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

SciTech Connect (OSTI)

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

Jacobsen, Chris

2014-12-07T23:59:59.000Z

6

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

Giger, Christine

7

Direct laser writing: Principles and materials for scaffold 3D printing  

Science Journals Connector (OSTI)

Abstract For a great variety of research fields extending from photonics to tissue engineering applications, the requests for the construction of three-dimensional structures with high resolution grow more and more imperative. Towards this aim, the direct laser writing technique by multi-photon polymerization, due to its unique properties and characteristics, has proven to be an indispensable tool to high accuracy structuring and has been put on the map as an emerging technology for scaffold 3D printing. In the present review, the basic principles of multi-photon polymerization are presented, the experimental set-up requirements are described and the employed materials demands are thoroughly mentioned as well as the most representative examples of the recent developments in the field.

Alexandros Selimis; Vladimir Mironov; Maria Farsari

2015-01-01T23:59:59.000Z

8

Multi-resolution surfel maps for efficient dense 3D modeling and tracking  

Science Journals Connector (OSTI)

Building consistent models of objects and scenes from moving sensors is an important prerequisite for many recognition, manipulation, and navigation tasks. Our approach integrates color and depth measurements seamlessly in a multi-resolution map representation. ... Keywords: 3D multi-resolution RGB-D image representation, Dense indoor scene mapping, Dense object modeling, On-line loop-closure detection, Real-time RGB-D image registration, Real-time pose tracking, Real-time simultaneous localization and mapping, Visual odometry

Jrg Stckler; Sven Behnke

2014-01-01T23:59:59.000Z

9

Femtosecond Laser Brings 3-D to Microfluidics Microfluidic devices have submillimeter channels designed to control the  

E-Print Network [OSTI]

Femtosecond Laser Brings 3-D to Microfluidics Microfluidic devices have submillimeter channels capable biological assays for such applications as bedside clinical diagnostics. Traditional microfluidics-dimensional geometries. The investigators, in the Groisman Microfluidics and Kleinfeld Neurophysics laboratories, begin

Kleinfeld, David

10

Persistent Ocean Monitoring with Underwater Gliders: Path Plans and Adapting Sampling Resolution 3D/4D  

E-Print Network [OSTI]

, penalized for navigating through waters of large magnitude ocean currents, and is length constrained. AlongPersistent Ocean Monitoring with Underwater Gliders: Path Plans and Adapting Sampling Resolution 3D Abstract Ocean processes are dynamic and complex events that occur on multiple different spatial

Frandsen, Jannette B.

11

Bioceramic 3D Implants Produced by Laser Assisted Additive Manufacturing  

Science Journals Connector (OSTI)

Abstract Cranial defect restoration requires a suitable implant capable to fulfill protective and aesthetic functions, such as polymeric and metallic implants. Nevertheless, the former materials cannot provide osteointegration of the implant within the host bone nor implant resorption, which is also required in pediatricorthopedics for normal patient growth. Resorbable and osteoconductivebioceramics are employed, such as silicate bioactive glasses. Nevertheless, manufacturing based on conventional casting in graphite moulds is not effective for warped shape implants suitable for patient tailored treatments. In this work, we analyze the application of rapid prototyping based on laser cladding to manufacture bioactive glass implants for low load bearing bone restoration. This laser-assisted additive technique is capable to produce three-dimensional geometries tailored to patient, with reduced fabrication time and implant composition modification. The obtained samples were characterized; the relationships between the processing conditions and the measured features were studied, in addition to the biological behavior analysis.

Fernando Lusquios; Jess del Val; Felipe Arias-Gonzlez; Rafael Comesaa; Flix Quintero; Antonio Riveiro; Mohamed Boutinguiza; Julian R. Jones; Robert G. Hill; Juan Pou

2014-01-01T23:59:59.000Z

12

Study of 3D Laser Cladding for Ni85Al15 Superalloy  

Science Journals Connector (OSTI)

Abstract Conditions of successful3D laser cladding for Ni based superalloy were studied. A high power Yb-YAG laser was used to create a molten pool on a stainless steel substrate into which Ni85Al15 powder stream was delivered to create 3D samples. The effect of different laser parameters on the structure and the intermetallic phase content of the manufactured samples were explored by optical metallography, microhardness, SEM, X-ray, and EDX analysis. The cladding of the Ni3A1 coating with small dilution into substrate can be obtained at the appropriate power density of about 2-8J/mm2 under the laser scan velocity of 100-200mm/min and the powder feed rate ? 3.8g/min.

D. Kotoban; S. Grigoriev; I. Shishkovsky

2014-01-01T23:59:59.000Z

13

Creating Precise 3D Microstructures Using Laser Direct-write Bimetallic Thermal Resist Grayscale Photomasks  

E-Print Network [OSTI]

research demonstrated Sn/In and Bi/In bimetallic thermal resists are promising new materials for direct/In bimetallic thermal resists as a masking material, we used a modified form of interference lithographyCreating Precise 3D Microstructures Using Laser Direct-write Bimetallic Thermal Resist Grayscale

Chapman, Glenn H.

14

Phys. Med. Biol. 43 (1998) 10011013. Printed in the UK PII: S0031-9155(98)90627-3 High-resolution 3D Bayesian image reconstruction using  

E-Print Network [OSTI]

-resolution 3D Bayesian image reconstruction using the microPET small-animal scanner Jinyi Qi, Richard M Leahy of high-resolution 3D images from the microPET small-animal scanner. Resolution recovery is achieved 2 mm when using an analytic 3D reprojection (3DRP) method with a ramp filter. These results also

Leahy, Richard M.

15

3-D laser Doppler velocimetry study of incompressible flow through an orifice plate  

E-Print Network [OSTI]

of Advisory Committee: Dr. Gerald Morrison Orifice meters are used extensively in the U. S. for the measurement of natural gas. Uncertainty of metering accuracy has resulted in an estimated 250 million dollars annually in mis-charges. This has led... to the need for basic research on orifice meters in an attempt to improve the accuracy of existing metering facilities. The objective of this present study was to use a 3-D LDV (laser Doppler velocimeter) to obtain detailed velocity and turbulence...

Panak, David Leo

2012-06-07T23:59:59.000Z

16

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

E-Print Network [OSTI]

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

Sung, Yongjin

2011-01-01T23:59:59.000Z

17

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

E-Print Network [OSTI]

??Three-dimensional printing (3DP) uses inkjet printheads to selectively deposit liquid binder to adjoin powder particles in a layer-by-layer fashion to create a computer-modeled 3D object. (more)

Chia, Helena

2014-01-01T23:59:59.000Z

18

Orbital evolution of colliding star and pulsar winds in 2D and 3D: dimensionality, resolution, and grid size effects  

E-Print Network [OSTI]

The structure formed by the shocked winds of a massive star and a non-accreting pulsar in a binary system suffers periodic and random variations of orbital and non-linear dynamical origin. The characterization of the evolution of the two-wind interaction region is necessary to understand the non-thermal emission from radio to gamma rays. For the first time, we simulate in 3D the interaction of isotropic stellar and relativistic pulsar winds along one full orbit, on scales well beyond the binary size. We also investigate the impact of grid resolution and size. We carry out, with the code PLUTO, relativistic hydrodynamical simulations in 2 and 3D of the interaction of a slow dense wind and a mildly relativistic wind along one full orbit, up to ~100 times the binary size. The 2-dimensional simulations are carried out with equal and larger grid resolution and size than in 3D. The simulations in 3D confirm previous results in 2D, showing a strong shock induced by Coriolis forces that terminates the pulsar wind in ...

Bosch-Ramon, V; Perucho, M

2014-01-01T23:59:59.000Z

19

2D and 3D imaging resolution trade-offs in quantifying pore throats for prediction of permeability  

SciTech Connect (OSTI)

Although the impact of subsurface geochemical reactions on porosity is relatively well understood, changes in permeability remain difficult to estimate. In this work, pore-network modeling was used to predict permeability based on pore- and pore-throat size distributions determined from analysis of 2D scanning electron microscopy (SEM) images of thin sections and 3D X-ray computed microtomography (CMT) data. The analyzed specimens were a Viking sandstone sample from the Alberta sedimentary basin and an experimental column of reacted Hanford sediments. For the column, a decrease in permeability due to mineral precipitation was estimated, but the permeability estimates were dependent on imaging technique and resolution. X-ray CT imaging has the advantage of reconstructing a 3D pore network while 2D SEM imaging can easily analyze sub-grain and intragranular variations in mineralogy. Pore network models informed by analyses of 2D and 3D images at comparable resolutions produced permeability esti- mates with relatively good agreement. Large discrepancies in predicted permeabilities resulted from small variations in image resolution. Images with resolutions 0.4 to 4 lm predicted permeabilities differ- ing by orders of magnitude. While lower-resolution scans can analyze larger specimens, small pore throats may be missed due to resolution limitations, which in turn overestimates permeability in a pore-network model in which pore-to-pore conductances are statistically assigned. Conversely, high-res- olution scans are capable of capturing small pore throats, but if they are not actually flow-conducting predicted permeabilities will be below expected values. In addition, permeability is underestimated due to misinterpreting surface-roughness features as small pore throats. Comparison of permeability pre- dictions with expected and measured permeability values showed that the largest discrepancies resulted from the highest resolution images and the best predictions of permeability will result from images between 2 and 4 lm resolution. To reduce permeability underestimation from analyses of high-resolu- tion images, a resolution threshold between 3 and 15 lm was found to be effective, but it is not known whether this range is applicable beyond the samples studied here.

Beckingham, Lauren E.; Peters, Catherine A.; Um, Wooyong; Jones, Keith W.; Lindquist, W.Brent

2013-09-03T23:59:59.000Z

20

TERRESTRIAL 3D-LASER SCANNER ZLS07 DEVELOPED AT ETH ZURICH: AN OVERVIEW OF ITS CONFIGURATION,  

E-Print Network [OSTI]

Utility Cavern ABSTRACT This paper introduces the terrestrial 3D-laser scanner ZLS07 which has been and the application of underground utility cavern acquisition for water and sewage engineering are presented. For utility cavern acquisitions, the ZLS07 is guided headfirst through a manhole into the utility cavern

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


21

Mesh Resolution Augmentation using 3D Skin Bank Won-Sook Lee*  

E-Print Network [OSTI]

on a 100-micron resolution scan of plaster cast molds of the actors' faces. Human skin was modeled using, as shown in Figure 1. Each individual is presented with closed eyes and mouth due to the use of plaster

Lee, WonSook

22

Nondestructive 3D confocal laser imaging with deconvolution of seven whole stardust tracks with complementary XRF and quantitative analysis  

SciTech Connect (OSTI)

We present a nondestructive 3D system for analysis of whole Stardust tracks, using a combination of Laser Confocal Scanning Microscopy and synchrotron XRF. 3D deconvolution is used for optical corrections, and results of quantitative analyses of several tracks are presented. The Stardust mission to comet Wild 2 trapped many cometary and ISM particles in aerogel, leaving behind 'tracks' of melted silica aerogel on both sides of the collector. Collected particles and their tracks range in size from submicron to millimeter scale. Interstellar dust collected on the obverse of the aerogel collector is thought to have an average track length of {approx}15 {micro}m. It has been our goal to perform a total non-destructive 3D textural and XRF chemical analysis on both types of tracks. To that end, we use a combination of Laser Confocal Scanning Microscopy (LCSM) and X Ray Florescence (XRF) spectrometry. Utilized properly, the combination of 3D optical data and chemical data provides total nondestructive characterization of full tracks, prior to flattening or other destructive analysis methods. Our LCSM techniques allow imaging at 0.075 {micro}m/pixel, without the use of oil-based lenses. A full textural analysis on track No.82 is presented here as well as analysis of 6 additional tracks contained within 3 keystones (No.128, No.129 and No.140). We present a method of removing the axial distortion inherent in LCSM images, by means of a computational 3D Deconvolution algorithm, and present some preliminary experiments with computed point spread functions. The combination of 3D LCSM data and XRF data provides invaluable information, while preserving the integrity of the samples for further analysis. It is imperative that these samples, the first extraterrestrial solids returned since the Apollo era, be fully mapped nondestructively in 3D, to preserve the maximum amount of information prior to other, destructive analysis.

Greenberg, M.; Ebel, D.S. (AMNH)

2009-03-19T23:59:59.000Z

23

Adaptive Multi-resolution 3D Hartree-Fock-Bogoliubov Solver for Nuclear Structure  

E-Print Network [OSTI]

Complex many-body systems, such as triaxial and reflection-asymmetric nuclei, weakly-bound halo states, cluster configurations, nuclear fragments produced in heavy-ion fusion reactions, cold Fermi gases, and pasta phases in neutron star crust, they are all characterized by large sizes and complex topologies, in which many geometrical symmetries characteristic of ground-state configurations are broken. A tool of choice to study such complex forms of matter is an adaptive multi-resolution wavelet analysis. This method has generated much excitement since it provides a common framework linking many diversified methodologies across different fields, including signal processing, data compression, harmonic analysis and operator theory, fractals, and quantum field theory. To describe complex superfluid many-fermion systems, we introduce an adaptive pseudo-spectral method for solving self-consistent equations of nuclear density functional theory in three dimensions, without symmetry restrictions. The new adaptive multi-resolution Hartree-Fock-Bogoliubov (HFB) solver {\\madnesshfb} is benchmarked against a two-dimensional coordinate-space solver {\\hfbax} based on B-spline technique and three-dimensional solver {\\hfodd} based on the harmonic oscillator basis expansion. Several examples are considered, including self-consistent HFB problem for spin-polarized trapped cold fermions and Skyrme-Hartree-Fock (+BCS) problem for triaxial deformed nuclei. The new {\\madnesshfb} framework has many attractive features when applied to nuclear and atomic problems involving many-particle superfluid systems. Of particular interest are weakly-bound nuclear configurations close to particle drip lines, strongly elongated and dinuclear configurations such as those present in fission and heavy ion fusion, and exotic pasta phases that appear in the neutron star crust.

Junchen Pei; George Fann; Robert Harrison; Witold Nazarewicz; Yue Shi; Scott Thornton

2014-07-14T23:59:59.000Z

24

Lasers, Electron Beams and New Years Resolutions | Department of Energy  

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

Lasers, Electron Beams and New Years Resolutions Lasers, Electron Beams and New Years Resolutions Lasers, Electron Beams and New Years Resolutions March 2, 2011 - 3:43pm Addthis Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What are the key facts? The electron beam that powers Jefferson Lab's Free-Electron Laser pumped out a record power input of 500 kilvolts using an innovative energy-recovery system that amplifies energy with far less power. A sufficiently powerful laser could make an effective defensive weapon, as well as accurate detection and tracking. The few folks still keeping their New Year's resolutions to work out might be the first to appreciate the recent record-breaking lift by the Energy Department's Jefferson Lab. Take a steel dumbbell. Hoist it up - lift with your legs! - onto a stand. Then add another ...and another

25

METAMATERIALS: Large-area printed 3D negative-index metamaterial is flexible -Laser Focus World http://www.laserfocusworld.com/articles/print/volume-47/issue-8/world-news/metamaterials-large-area-printed-3d-negative-index-metamaterial-is-flexible.html[8/1  

E-Print Network [OSTI]

METAMATERIALS: Large-area printed 3D negative-index metamaterial is flexible - Laser Focus World-area printed 3D negative-index metamaterial is flexible METAMATERIALS: Large-area printed 3D negative, with the advent of a printing process that produces large-area 3D multilayer optical NIMs --8.7 ? 8.7 cm square

Rogers, John A.

26

Imaging and 3D Elemental Characterization of Intact Bacterial Spores by High-Resolution Secondary Ion Mass Spectrometry  

Science Journals Connector (OSTI)

We present a quantitative, imaging technique based on nanometer-scale secondary ion mass spectrometry for mapping the 3D elemental distribution present in an individual micrometer-sized Bacillus spore. We use depth profile analysis to access the 3D ...

Sutapa Ghosal; Stewart J. Fallon; Terrance J. Leighton; Katherine E. Wheeler; Michael J. Kristo; Ian D. Hutcheon; Peter K. Weber

2008-06-26T23:59:59.000Z

27

Time-resolved fuel injector flow characterisation based on 3D laser Doppler vibrometry  

E-Print Network [OSTI]

In order to enable investigations of the fuel flow inside unmodified injectors, we have developed a new experimental approach to measure time-resolved vibration spectra of diesel nozzles using a three dimensional laser vibrometer. The technique we propose is based on the triangulation of the vibrometer and fuel pressure transducer signals, and enables the quantitative characterisation of quasi-cyclic internal flows without requiring modifications to the injector, the working fluid, or limiting the fuel injection pressure. The vibrometer, which uses the Doppler effect to measure the velocity of a vibrating object, was used to scan injector nozzle tips during the injection event. The data were processed using a discrete Fourier transform to provide time-resolved spectra for valve-closed-orifice, minisac and microsac nozzle geometries, and injection pressures ranging from 60 to 160MPa, hence offering unprecedented insight into cyclic cavitation and internal mechanical dynamic processes. A peak was consistently f...

Crua, Cyril

2015-01-01T23:59:59.000Z

28

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

E-Print Network [OSTI]

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

Boyer, Edmond

29

High-resolution x-ray-emission study of 1s4p and 1s3d two-electron photoexcitations in Kr  

Science Journals Connector (OSTI)

High-energy-resolution photoexcited KN2,3 x-ray-emission measurements were carried out on krypton with the excitation energy tuned around the 1s4p and 1s3d double-excitation thresholds. Comprehensive two-dimensional resonant inelastic x-ray-scattering maps were recorded for the range of excitation and emission energies corresponding to both types of double excitations. The double-excitation signal could be clearly resolved from the dominant 1s ionization signal. The latter was subtracted from the measured maps, yielding isolated 1s4p and 1s3d photoexcitation spectra. Both two-electron excitation spectra are well described by a model spectrum built of consecutive bound-bound discrete transitions and shake-up and shake-off channels giving precise energies and intensities of the corresponding contributions. The obtained results are compared with other existing experimental values based on x-ray-absorption measurements and theoretical predictions.

M. Kav?i?; M. itnik; D. Sokaras; T.-C. Weng; R. Alonso-Mori; D. Nordlund; J.-Cl. Dousse; J. Hoszowska

2014-08-21T23:59:59.000Z

30

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

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

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

31

3D Imaging of Porous Media Using Laser Scanning Confocal Microscopy with Application to Microscale Transport Processes  

SciTech Connect (OSTI)

We present advances in the application of laser scanning confocal microscopy (LSCM) to image, reconstruct, and characterize statistically the microgeometry of porous geologic and engineering materials. We discuss technical and practical aspects of this imaging technique, including both its advantages and limitations. Confocal imaging can be used to optically section a material, with sub-micron resolution possible in the lateral and axial planes. The resultant volumetric image data, consisting of fluorescence intensities for typically {approximately}50 million voxels in XYZ space, can be used to reconstruct the three-dimensional structure of the two-phase medium. We present several examples of this application, including studying pore geometry in sandstone, characterizing brittle failure processes in low-porosity rock deformed under triaxial loading conditions in the laboratory, and analyzing the microstructure of porous ceramic insulations. We then describe approaches to extract statistical microgeometric descriptions from volumetric image data, and present results derived from confocal volumetric data sets. Finally, we develop the use of confocal image data to automatically generate a three-dimensional mesh for numerical pore-scale flow simulations.

Fredrich, J.T.

1999-02-10T23:59:59.000Z

32

Demonstration of a Novel, Integrated, Multi-Scale Procedure for High-Resolution 3D Reservoir Characterization and Improved CO2-EOR/Sequestration Management, SACROC Unit  

SciTech Connect (OSTI)

The primary goal of this project was to demonstrate a new and novel approach for high resolution, 3D reservoir characterization that can enable better management of CO{sub 2} enhanced oil recovery (EOR) projects and, looking to the future, carbon sequestration projects. The approach adopted has been the subject of previous research by the DOE and others, and relies primarily upon data-mining and advanced pattern recognition approaches. This approach honors all reservoir characterization data collected, but accepts that our understanding of how these measurements relate to the information of most interest, such as how porosity and permeability vary over a reservoir volume, is imperfect. Ideally the data needed for such an approach includes surface seismic to provide the greatest amount of data over the entire reservoir volume of interest, crosswell seismic to fill the resolution gap between surface seismic and wellbore-scale measurements, geophysical well logs to provide the vertical resolution sought, and core data to provide the tie to the information of most interest. These data are combined via a series of one or more relational models to enable, in its most successful application, the prediction of porosity and permeability on a vertical resolution similar to logs at each surface seismic trace location. In this project, the procedure was applied to the giant (and highly complex) SACROC unit of the Permian basin in West Texas, one of the world's largest CO{sub 2}-EOR projects and a potentially world-class geologic sequestration site. Due to operational scheduling considerations on the part of the operator of the field, the crosswell data was not obtained during the period of project performance (it is currently being collected however as part of another DOE project). This compromised the utility of the surface seismic data for the project due to the resolution gap between it and the geophysical well logs. An alternative approach was adopted that utilized a relational model to predict porosity and permeability profiles from well logs at each well location, and a 3D geostatistical variogram to generate the reservoir characterization over the reservoir volume of interest. A reservoir simulation model was built based upon this characterization and history-matched without making significant changes to it, thus validating the procedure. While not the same procedure as originally planned, the procedure ultimately employed proved successful and demonstrated that the general concepts proposed (i.e., data mining and advanced pattern recognition methods) have the flexibility to achieve the reservoir characterization objectives sought even with imperfect or incomplete data.

Scott R. Reeves

2007-09-30T23:59:59.000Z

33

Advanced Reservoir Characterization and Development through High-Resolution 3C3D Seismic and Horizontal Drilling: Eva South Marrow Sand Unit, Texas County, Oklahoma  

SciTech Connect (OSTI)

The Eva South Morrow Sand Unit is located in western Texas County, Oklahoma. The field produces from an upper Morrow sandstone, termed the Eva sandstone, deposited in a transgressive valley-fill sequence. The field is defined as a combination structural stratigraphic trap; the reservoir lies in a convex up -dip bend in the valley and is truncated on the west side by the Teepee Creek fault. Although the field has been a successful waterflood since 1993, reservoir heterogeneity and compartmentalization has impeded overall sweep efficiency. A 4.25 square mile high-resolution, three component three-dimensional (3C3D) seismic survey was acquired in order to improve reservoir characterization and pinpoint the optimal location of a new horizontal producing well, the ESU 13-H.

Wheeler,David M.; Miller, William A.; Wilson, Travis C.

2002-03-11T23:59:59.000Z

34

Laser Roadshow  

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

outreach Laser Roadshow The NIF Laser Roadshow includes a number of interactive laser demonstrations (Laser Light Fountain, Laser DJ, and NIF "3D ride") that have traveled across...

35

3-D particle-in-cell simulations for quasi-phase matched direct laser electron acceleration in density-modulated plasma waveguides  

E-Print Network [OSTI]

Quasi-phase matched direct laser acceleration (DLA) of electrons can be realized with guided, radially polarized laser pulses in density-modulated plasma waveguides. A 3-D particle-in-cell model has been developed to describe the interactions among the laser field, injected electrons, and the background plasma in the DLA process. Simulations have been conducted to study the scheme in which seed electron bunches with moderate energies are injected into a plasma waveguide and the DLA is performed by use of relatively low-power (0.5-2 TW) laser pulses. Selected bunch injection delays with respect to the laser pulse, bunch lengths, and bunch transverse sizes have been studied in a series of simulations of DLA in a plasma waveguide. The results show that the injection delay is important for controlling the final transverse properties of short electron bunches, but it also affects the final energy gain. With a long injected bunch length, the enhanced ion-focusing force helps to collimate the electrons and a relativ...

Lin, M -W; Chen, S -H; Jovanovic, I

2014-01-01T23:59:59.000Z

36

Integrated Photonics Research Conference, Santa Barbara, July 1999 Efficiency Analysis of Quantum Well Lasers using PICS3D  

E-Print Network [OSTI]

focus on the analysis of loss mechanisms in 1.55µm InGaAsP/InP ridge-waveguide laser diodes (Fig. 1 stack is sandwiched between 100nm thick InGaAsP separate confinement layers (SCLs). Broad area ridge.67 and the internal optical absorption i = 14cm-1 . Since both the loss parameters depend on the cavity length

Bowers, John

37

D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for  

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

D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization The characterization of complex and/or hazardous facilities for the purposes of planning D&D projects can be excessively time consuming and present unacceptable hazards for personnel who enter or access the facility. D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization More Documents & Publications D&D Toolbox Project - Technology Demonstration of Fixatives Applied to Hot Cell Facilities via Remote Sprayer Platforms Above on the left is K-25, at Oak Ridge before and after the 844,000 sq-ft demolition. In addition, on the right: K Cooling Tower at Savannah River Site demolition.

38

D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for  

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

Robotic Deployment of High Resolution Laser Imaging for Robotic Deployment of High Resolution Laser Imaging for Characterization D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization The characterization of complex and/or hazardous facilities for the purposes of planning D&D projects can be excessively time consuming and present unacceptable hazards for personnel who enter or access the facility. D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization More Documents & Publications Above on the left is K-25, at Oak Ridge before and after the 844,000 sq-ft demolition. In addition, on the right: K Cooling Tower at Savannah River Site demolition. Deactivation & Decommissioning (D&D) Program Map DOE EM Project Experience & Lessons Learned for In Situ Decommissioning

39

Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams  

E-Print Network [OSTI]

Submillimeter-resolution radiography of shielded structures with laser-accelerated electron beams (Received 24 March 2010; published 14 October 2010) We investigate the use of energetic electron beams beam (with energy >100 MeV) was generated by the process of laser-wakefield acceleration through

Umstadter, Donald

40

Laser hazard analysis for LASIRIS Model MAG-501L-670M-1000-45[degree]-K diode laser associated with high resolution pulsed scanner.  

SciTech Connect (OSTI)

A laser hazard analysis and safety assessment was performed for the LASIRISTM Model MAG-501L-670M-1000-45o-K diode laser associated with the High Resolution Pulse Scanner based on the ANSI Standard Z136.1-2000, American National Standard for the Safe Use of Lasers and the ANSI Standard Z136.6-2000, American National Standard for the Safe Use of Lasers Outdoors. The laser was evaluated for both indoor and outdoor use.

Augustoni, Arnold L.

2004-11-01T23:59:59.000Z

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


41

High-resolution emission spectra of pulsed terahertz quantum-cascade lasers  

SciTech Connect (OSTI)

The spectra of pulsed terahertz quantum-cascade lasers were measured with high spectral resolution. The characteristic line width at half maximum was 0.01 cm{sup -1}; it is controlled by laser temperature variations during the supply voltage pulse. It was shown that an increase in the laser temperature leads to a decrease in the emission frequency, which is caused by an increase in the effective refractive index of the active region. It was also found that a decrease in the supply voltage results in a decrease in the emission frequency, which is caused by a change in the energy of diagonal transitions between lasing levels.

Ikonnikov, A. V., E-mail: antikon@ipm.sci-nnov.ru; Antonov, A. V.; Lastovkin, A. A.; Gavrilenko, V. I. [Russian Academy of Sciences, Institute for Physics of Microstructures (Russian Federation); Sadof'ev, Yu. G.; Samal, N. [Trion Technology (United States)

2010-11-15T23:59:59.000Z

42

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/

43

Single shot extreme ultraviolet laser imaging of nanostructures with wavelength resolution  

SciTech Connect (OSTI)

We have demonstrated near-wavelength resolution microscopy in the extreme ultraviolet. Images of 50 nm diameter nanotubes were obtained with a single {approx}1 ns duration pulse from a desk-top size 46.9 nm laser. We measured the modulation transfer function of the microscope for three different numerical aperture zone plate objectives, demonstrating that 54 nm half-period structures can be resolved. The combination of near-wavelength spatial resolution and high temporal resolution opens myriad opportunities in imaging, such as the ability to directly investigate dynamics of nanoscale structures.

Jones, Juanita; Brewer, Courtney A.; Brizuela, Fernando; Wachulak, Przemyslaw; Martz, Dale H.; Chao, Weilun; Anderson, Erik H.; Attwood, David T.; Vinogradov, Alexander V.; Artyukov, Igor A.; Ponomareko, Alexander G.; Kondratenko, Valeriy V.; Marconi, Mario C.; Rocca, Jorge J.; Menoni, Carmen S.

2008-01-07T23:59:59.000Z

44

Ames Lab 101: Real-Time 3D Imaging  

ScienceCinema (OSTI)

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

Zhang, Song

2012-08-29T23:59:59.000Z

45

3D heart reconstruction.  

E-Print Network [OSTI]

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

Roxo, Diogo

2011-01-01T23:59:59.000Z

46

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

47

Toward atomic resolution diffractive imaging of isolated molecules with x-ray free-electron lasers  

E-Print Network [OSTI]

We give a detailed account of the theoretical analysis and the experimental results of an x-ray-diffraction experiment on quantum-state selected and strongly laser-aligned gas-phase ensembles of the prototypical large asymmetric rotor molecule 2,5-diiodobenzonitrile, performed at the Linac Coherent Light Source [Phys. Rev. Lett. 112, 083002 (2014)]. This experiment is the first step toward coherent diffractive imaging of structures and structural dynamics of isolated molecules at atomic resolution, i. e., picometers and femtoseconds, using x-ray free-electron lasers.

Stern, Stephan; Filsinger, Frank; Rouze, Arnaud; Rudenko, Artem; Johnsson, Per; Martin, Andrew V; Barty, Anton; Bostedt, Christoph; Bozek, John D; Coffee, Ryan N; Epp, Sascha; Erk, Benjamin; Foucar, Lutz; Hartmann, Robert; Kimmel, Nils; Khnel, Kai-Uwe; Maurer, Jochen; Messerschmidt, Marc; Rudek, Benedikt; Starodub, Dmitri G; Thgersen, Jan; Weidenspointner, Georg; White, Thomas A; Stapelfeldt, Henrik; Rolles, Daniel; Chapman, Henry N; Kpper, Jochen

2014-01-01T23:59:59.000Z

48

3D Printing Prof. Hank Dietz & Paul Eberhart  

E-Print Network [OSTI]

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

Dietz, Henry G. "Hank"

49

Observation of Self-Similar Behavior of the 3D, Nonlinear Rayleigh-Taylor Instability  

SciTech Connect (OSTI)

The Rayleigh-Taylor unstable growth of laser-seededm 3D broadband perturbations was experimentally measured in the laser-seeded, planar plastic foils.

Sadot, O.; Smalyuk, V.A.; Delettrez, J. A.; Meyerhofer, D.D.; Sangster, T.C.; Betti, R.; Goncharov, V.N.; Shvarts, D.

2005-12-29T23:59:59.000Z

50

A 3D scanning system for biomedical purposes  

Science Journals Connector (OSTI)

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

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

2009-06-01T23:59:59.000Z

51

Graphene's 3D Counterpart  

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

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

52

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...

53

3D Plasmon Ruler  

SciTech Connect (OSTI)

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

None

2011-01-01T23:59:59.000Z

54

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

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

Zhu, Zhigang

55

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

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

Zhu, Zhigang

56

High-resolution multi-heterodyne spectroscopy based on Fabry-Perot quantum cascade lasers  

SciTech Connect (OSTI)

In this Letter, we present a method of performing broadband mid-infrared spectroscopy with conventional, free-running, continuous wave Fabry-Perot quantum cascade lasers (FP-QCLs). The measurement method is based on multi-heterodyne down-conversion of optical signals. The sample transmission spectrum probed by one multi-mode FP-QCL is down-converted to the radio-frequency domain through an optical multi-heterodyne process using a second FP-QCL as the local oscillator. Both a broadband multi-mode spectral measurement as well as high-resolution (?15?MHz) spectroscopy of molecular absorption are demonstrated and show great potential for development of high performance FP-laser-based spectrometers for chemical sensing.

Wang, Yin; Wang, Wen; Wysocki, Gerard, E-mail: gwysocki@princeton.edu [Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08540 (United States); Soskind, Michael G. [Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08540 (United States); Department of Electrical Engineering, Rutgers University, New Brunswick, New Jersy 08901 (United States)

2014-01-20T23:59:59.000Z

57

High resolution laser induced fluorescence Doppler velocimetry utilizing saturated absorption spectroscopy  

SciTech Connect (OSTI)

A high resolution laser induced fluorescence (LIF) system has been developed to measure the flow velocity field of neutral particles in an electron-cyclotron-resonance argon plasma. The flow velocity has been determined by the Doppler shift of the LIF spectrum, which is proportional to the velocity distribution function. Very high accuracy in velocity determination has been achieved by installing a saturated absorption spectroscopy unit into the LIF system, where the absolute value and scale of laser wavelength are determined by using the Lamb dip and the fringes of a Fabry-Perot interferometer. The minimum detectable flow velocity of a newly developed LIF system is {+-}2 m/s, and this performance remains unchanged in a long-time experiment. From the radial measurements of LIF spectra of argon metastable atoms, it is found that there exists an inward flow of neutral particles associated with neutral depletion.

Aramaki, Mitsutoshi [Department of Electrical Engineering and Computer Science, Nagoya University, Nagoya 464-8603 (Japan); Ogiwara, Kohei; Etoh, Shuzo [Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580 (Japan); Yoshimura, Shinji [National Institute for Fusion Science, Toki 509-5292 (Japan); Tanaka, Masayoshi Y. [Department of Advanced Energy Engineering Science, Kyushu University, Kasuga 816-8580 (Japan)

2009-05-15T23:59:59.000Z

58

D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization  

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

Tech Stage: Demonstration D&D Toolbox: Project OR-071203, OR-071303; Deployed at SRS P Reactor Area Closure Project PBS SR-0040 The robotically deployed laser surveying system was demonstrated in the Purification room of SRS P-Reactor on September 24, 2008. Page 1 of 2 Savannah River Site South Carolina Michigan D&D Toolbox Robotic Deployment of High Resolution Laser Imaging for Characterization Challenge The characterization of complex and/or hazardous facilities for the purposes of planning D&D projects can be excessively time consuming and present unacceptable hazards for personnel who enter or access the facility. Planners must know the condition of facilities which may have been abandoned in years past with little or no

59

Quantum 3D superstrings  

Science Journals Connector (OSTI)

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

Luca Mezincescu and Paul K. Townsend

2011-11-08T23:59:59.000Z

60

Introduction to 3D Printing  

Science Journals Connector (OSTI)

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

Charles Bell

2014-01-01T23:59:59.000Z

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


61

3d X 3d X SrTiO3Ti 2p 3d  

E-Print Network [OSTI]

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

Katsumoto, Shingo

62

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

Science Journals Connector (OSTI)

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

Gabriel Taubin; Daniel Moreno; Douglas Lanman

2014-07-01T23:59:59.000Z

63

High-resolution X-ray spectroscopy of hollow atoms created in plasma heated by subpicosecond laser radiation  

SciTech Connect (OSTI)

The investigations of ultrashort (0.4-0.6 ps) laser pulse radiation interaction with solid targets have been carried out. The Trident subpicosecond laser system was used for plasma creation. The X-ray plasma emission was investigated with the help of high-resolution spectrographs with spherically bent mica crystals. It is shown that when high contrast ultrashort laser pulses were used for plasma heating its emission spectra could not be explained in terms of commonly used theoretical models, and transitions in so called {open_quotes}hollow atoms{close_quotes} must be taken into account for adequate description of plasma radiation.

Faenov, A.Ya.; Magunov, A.I.; Pikuz, T.A. [Multicharged Ions Spectra Data Center of VNIIFTRI, Moscow (Russian Federation)] [and others

1997-10-01T23:59:59.000Z

64

High-resolution mapping of quantum efficiency of silicon photodiode via optical-feedback laser microthermography  

SciTech Connect (OSTI)

We map the external quantum efficiency (QE) distribution of a silicon photodiode (PD) sample via a thermographic imaging technique based on optical-feedback laser confocal microscopy. An image pair consisting of the confocal reflectance image and the 2D photocurrent map is simultaneously acquired to delineate the following regions of interest on the sample: the substrate, the n-type region, the pn overlay, and the bonding pad. The 2D QE distribution is derived from the photocurrent map to quantify the optical performance of these sites. The thermal integrity of the sample is then evaluated by deriving the rate of change of QE with temperature T at each point on the silicon PD. These gradient maps function not only as stringent measures of local thermal QE activity but they also expose probable defect locations on the sample at high spatial resolution - a capability that is not feasible with existing bulk measurement techniques.

Cemine, Vernon Julius; Blanca, Carlo Mar; Saloma, Caesar

2006-09-20T23:59:59.000Z

65

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

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

Zhu, Zhigang

66

3D Computer Vision and Video Computing 3D Vision3D Vision  

E-Print Network [OSTI]

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

Zhu, Zhigang

67

3D modeling with silhouettes  

E-Print Network [OSTI]

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

Rivers, Alec (Alec Rothmyer)

2010-01-01T23:59:59.000Z

68

Slicing a 3D Model  

Science Journals Connector (OSTI)

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

Joan Horvath

2014-01-01T23:59:59.000Z

69

The Desktop 3D Printer  

Science Journals Connector (OSTI)

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

Joan Horvath

2014-01-01T23:59:59.000Z

70

3 D interactive pictorial maps  

E-Print Network [OSTI]

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

Naz, Asma

2005-02-17T23:59:59.000Z

71

3D Printed Bionic Ears  

Science Journals Connector (OSTI)

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

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

2013-05-01T23:59:59.000Z

72

3D Tissue Scaffolds BIOMATERIALS  

E-Print Network [OSTI]

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

73

Francis Engelmann 3D Laser Scanning of  

E-Print Network [OSTI]

Prototype . . . . . . 24 Discussion . . . . . . . . . . . . . . . . 25 #12;Contents vii 3.2.4 PCB - Arduino

74

Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems  

E-Print Network [OSTI]

3D ZnO Nanoparticle Assemblies on Gold Electrodes A novel manufacturing method, High resolution screen printing

Choi, Sun

2012-01-01T23:59:59.000Z

75

An attempt to study LiH and Li{sub 2} molecules by high resolution pulsed laser spectroscopy  

SciTech Connect (OSTI)

As we start a program to study alkali hydrides and dimers, we have developed a two-step photoionisation experiment on Li{sub 2} molecules based on the use of an atomic beam and two pulsed dye lasers. The first resonant step which excites the A {sup 1}{sigma}{sub u}{sup +}-X {sup 1}{sigma}{sub g}{sup +}Li{sub 2} dimer systems is a home-made cw-seeded DCM dye laser with a laser linewidth of 55 MHz (FWHM) and near the Fourier transform limit. The second step is a larger width fixed frequency UV laser which allows the photoionisation of the selectively excited molecules. The three {sup 6}Li{sub 2}, {sup 6}Li {sup 7}Li and {sup 7}Li{sub 2} spectra are recorded simultaneously by the use of a doubly-accelerating time-of-flight ion analyser. Comparison between recorded and calculated absorption spectra using Dunham parameters found in the literature is satisfactory. To develop similar pulsed high-resolution investigations in LiH, we have characterized our molecular beam by using the laser induced fluorescence (LIF) technique with a cw blue dye laser. Two Franck-Condon LiH Doppler-free resonances have been observed.

Bouloufa, Nadia; Cabaret, Louis; Cacciani, Patrice; Camus, Pierre; Pitcheev, Boris; Vetter, Raymond [Laboratoire Aime Cotton, CNRS II, Bat 505, Campus d'Orsay, 91405 Orsay Cedex (France)

1998-12-16T23:59:59.000Z

76

3D World Building System  

SciTech Connect (OSTI)

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

None

2013-10-30T23:59:59.000Z

77

3D World Building System  

ScienceCinema (OSTI)

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

None

2014-02-26T23:59:59.000Z

78

Imaging atoms in 3-D  

ScienceCinema (OSTI)

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

Ercius, Peter

2014-06-27T23:59:59.000Z

79

3D nonparametric neural identification  

Science Journals Connector (OSTI)

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

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

2012-01-01T23:59:59.000Z

80

Isotropic 3D fast spin-echo imaging versus standard 2D imaging at 3.0 T of the kneeimage quality and diagnostic performance  

E-Print Network [OSTI]

SB (2007) High-resolution 3D cartilage imaging with IDEALMa Thomas M. Link Isotropic 3D fast spin-echo imaging versusintermediate-weighted (IM-w) 3D fast spin-echo (FSE) se-

2009-01-01T23:59:59.000Z

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


81

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

82

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

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

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

83

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

E-Print Network [OSTI]

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

E. Baron; Peter H. Hauschildt

2007-03-16T23:59:59.000Z

84

3D Polygon Rendering Pipeline Michael Kazhdan  

E-Print Network [OSTI]

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

Kazhdan, Michael

85

3D Polygon Rendering Pipeline Michael Kazhdan  

E-Print Network [OSTI]

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

Kazhdan, Michael

86

Reconstruction of photorealistic 3D model of ceramic artefacts for interactive virtual exhibition  

Science Journals Connector (OSTI)

To create photorealistic three-dimensional (3D) models of real scenes and objects is a challenging problem that demands advanced knowledge of computer vision and computer graphics. Systems that can reconstruct the 3D model of cultural artefacts have found many applications such as virtual museum and historical archiving. While there are methods for 3D digitization of cultural artefacts with high geometric resolution, there are still limitations in achieving high textural resolution for virtual exhibition. One major problem is that the object surface exhibits specular reflection of illuminated light during the acquisition of surface texture. The shading of the target object does not match to other objects or pictures in the virtual scene. Also, if texture of the object must be composed of multiple images, the mismatch of shading (radiometric difference) among the images can be very prominent. In order to create high visual quality exhibition, the specular reflections must be eliminated and then the virtual scene is relit by a synthetic light source. Most existing methods for the identification and removal of specular reflection component demand special device or rely on information obtained in a single image. In order to reconstruct a complete 3D model, we need to acquire a multi-view image sequence. We therefore propose a new method that is applicable for the separation of diffuse and specular reflection components in multi-view image sequence. Also, our method can tackle the specular reflection across the texture boundary. The image sequence is first normalized by the estimated illumination color. Based on the dichromatic reflection model, the specular chromaticity is replaced by the corresponding diffuse chromaticity, which can always be found in neighboring views with the highlights already faded away. We test the new method in modeling Yixing ceramic teapots. The shape model of the teapot is obtained by a laser scanner. The diffuse image sequence is then used to generate the texture map. We create the virtual scene with the photorealistic 3D teapot model, some synthetic 3D models and still pictures. Interactive exhibition of the artefact is achieved with the control of the mouse and simple keyboard commands. This paper gives an account of the procedures for the creation of interactive virtual exhibition of ceramic artefacts.

Shu-Kam Chow; Kwok-Leung Chan

2009-01-01T23:59:59.000Z

87

Voxel octree intersection based 3D scanning.  

E-Print Network [OSTI]

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

Bennett, Joel

2014-01-01T23:59:59.000Z

88

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

89

High Spatial Resolution Thermal Imaging of Multiple Section Semiconductor Lasers Ali Shakouri*  

E-Print Network [OSTI]

and peak wavelength characteristics of active optoelectronic devices. In this paper we describe how for optoelectronic devices such as laser sources, switching/routing elements, and detectors. This is especially true (TE) coolers. However since their integration with optoelectronic devices is difficult [1

90

MultiFab : a multi-material 3D printing platform ; Multi Fab : a multi-material 3D printing platform ; Multi-material 3D printing platform ; Multi-material 3-dimensional printing platform ; Multi-material three-dimensional printing platform .  

E-Print Network [OSTI]

??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 (more)

Ramos-Malts, Javier Eduardo

2014-01-01T23:59:59.000Z

91

3D Printed Quantum Dot Light-Emitting Diodes  

Science Journals Connector (OSTI)

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

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

2014-10-31T23:59:59.000Z

92

3D Structures of Biomolecules  

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

in the lower molecular weight range. Another approach under rapid development is single molecule imaging using cryo electron microscopy (cryo-EM). The highest resolution...

93

3D Printed Shelby Cobra  

Broader source: Energy.gov [DOE]

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

94

3D Imaging Technology Conference & Applications Workshop  

E-Print Network [OSTI]

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

Aristomenis, Antoniadis

95

3D N = 4 Gauge Theory Compactication  

E-Print Network [OSTI]

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

Bigelow, Stephen

96

Polarization Singularities in 2D and 3D Speckle Fields  

Science Journals Connector (OSTI)

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

Florian Flossmann; Kevin OHolleran; Mark R. Dennis; Miles J. Padgett

2008-05-22T23:59:59.000Z

97

High-resolution multi-MeV x-ray radiography using relativistic laser-solid interaction  

SciTech Connect (OSTI)

When high intensity ({>=}10{sup 19} W cm{sup -2}) laser light interacts with matter, multi-MeV electrons are produced. These electrons can be utilized to generate a MeV bremsstrahlung x-ray emission spectrum as they propagate into a high-Z solid target positioned behind the interaction area. The short duration (<10 ps) and the small diameter (<500 {mu}m) of the x-ray pulse combined with the MeV x-ray spectrum offers an interesting alternative to conventional bremsstrahlung x-ray sources based on an electron accelerator used to radiograph dense, rapidly moving objects. In experiments at the Omega EP laser, a multi-MeV x-ray source is characterized consistently with number of independent diagnostics. An unfiltered x-ray dose of approximately 2 rad in air at 1 m and a source diameter of less than 350 {mu}m are inferred. Radiography of a complex and high area density (up to 61 g/cm{sup 2}) object is then performed with few hundred microns spatial resolution.

Courtois, C.; Compant La Fontaine, A.; Barbotin, M.; Bazzoli, S.; Brebion, D.; Bourgade, J. L.; Gazave, J.; Lagrange, J. M.; Landoas, O.; Le Dain, L.; Lefebvre, E.; Pichoff, N. [CEA, DAM, DIF, F-91297 Arpajon (France); Edwards, R.; Aedy, C.; Biddle, L.; Drew, D.; Gardner, M.; Ramsay, M.; Simons, A.; Sircombe, N. [AWE Plc., Aldermaston, Reading RG7 4PR (United Kingdom)

2011-02-15T23:59:59.000Z

98

3D-printed miniature gas cell for photoacoustic spectroscopy of trace gases  

Science Journals Connector (OSTI)

A new methodology for the development of miniature photoacoustic trace gas sensors using 3D printing is presented. A near-infrared distributed feedback (DFB) laser is used together...

Bauer, Ralf; Stewart, George; Johnstone, Walter; Boyd, Euan; Lengden, Michael

2014-01-01T23:59:59.000Z

99

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

100

A Brief History of 3D Printing  

Science Journals Connector (OSTI)

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

Joan Horvath

2014-01-01T23:59:59.000Z

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


101

Part removal of 3D printed parts  

E-Print Network [OSTI]

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

Pea Doll, Mateo

2014-01-01T23:59:59.000Z

102

Design, assembly, and testing of a high-resolution relay lens used for holography with operation at both doubled and tripled Nd:YAG laser wavelengths  

SciTech Connect (OSTI)

The design and assembly of a nine-element lens that achieves >2000 1p/mm resolution at a 355-nm wavelength (ultraviolet) has been completed. By adding a doublet to this lens system, operation at a 532-nm wavelength (green) with > 1100 1p/mm resolution is achieved. This lens is used with high-power laser light to record holograms of fast-moving ejecta particles from a shocked metal surface located inside a test package. Part of the lens and the entire test package are under vacuum with a 1-cm air gap separation. Holograms have been recorded with both doubled and tripled Nd:YAG laser light. The UV operation is very sensitive to the package window's tilt. If this window is tilted by more than 0.1 degrees, the green operation performs with better resolution than that of the UV operation. The setup and alignment are performed with green light, but the dynamic recording can be done with either UV light or green light. A resolution plate can be temporarily placed inside the test package so that a television microscope located beyond the hologram position can archive images of resolution patterns that prove that the calibration wires., interference filter, holographic plate, and relay lenses are in their correct positions. Part of this lens is under vacuum, at the point where the laser illumination passes through a focus. Alignment and tolerancing of this high-resolution lens are presented. Resolution variation across the 12-mm field of view and throughout the 5-mm depth of field is discussed for both wavelengths.

Sorenson, Danny S [Los Alamos National Laboratory; Pazuchanics, Peter D [Los Alamos National Laboratory; Malone, Robert M [NSTEC; Cox, Brian C [NSTEC; Frogget, Brent C [NSTEC; Kaufman, Morris I [NSTEC; Capelle, Gene A [NSTEC/SB; Grover, M [NSTEC/SB; Stevens, Gerald D [NSTEC/SB; Turley, William D [NSTEC/SB

2009-01-01T23:59:59.000Z

103

ArrangePak-3D User's Manual  

E-Print Network [OSTI]

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

Wismath, Stephen

104

Digital Pygmalion Accurate 3D reconstruction  

E-Print Network [OSTI]

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

Cipolla, Roberto

105

3D Printing Prof. Hank Dietz  

E-Print Network [OSTI]

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

Dietz, Henry G. "Hank"

106

3D Sparse Representations Lanusse F. a  

E-Print Network [OSTI]

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

Starck, Jean-Luc

107

3D Imaging Of Wet Granular Matter  

E-Print Network [OSTI]

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

Anlage, Steven

108

3D Postprozessor Diplomarbeit von Samuel Gerber  

E-Print Network [OSTI]

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

Gerber, Samuel

109

Supersymmetric Gauge Theories in 3d  

E-Print Network [OSTI]

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

California at Santa Cruz, University of

110

MultiFab : a multi-material 3D printing platform  

E-Print Network [OSTI]

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 ...

Ramos-Malts, Javier Eduardo

2014-01-01T23:59:59.000Z

111

2D 3D * iklee)@yonsei.ac.kr  

E-Print Network [OSTI]

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

Lee, In-Kwon

112

2D/3D Discrete Duality Finite Volume Scheme (DDFV) applied to ECG simulation.  

E-Print Network [OSTI]

2D/3D Discrete Duality Finite Volume Scheme (DDFV) applied to ECG simulation. DDFV scheme part, the method is used for the resolution of a problem arising in bio-mathematics: the ECG

Coudière, Yves

113

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

E-Print Network [OSTI]

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

Bowden, Richard

114

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

E-Print Network [OSTI]

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

Delson, Eric

115

Virtual reality 3D headset based on DMD light modulators  

SciTech Connect (OSTI)

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

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

2014-06-13T23:59:59.000Z

116

Metrology of 3D nanostructures.  

SciTech Connect (OSTI)

We propose a superresolution technique to resolve dense clusters of blinking emitters. The method relies on two basic assumptions: the emitters are statistically independent, and a model of the imaging system is known. We numerically analyze the performance limits of the method as a function of the emitter density and the noise level. Numerical simulations show that five closely packed emitters can be resolved and localized to a precision of 17nm. The experimental resolution of five quantum dots located within a diffraction limited spot confirms the applicability of this approach.

Barsic, Anthony [University of Colorado at Boulder, Boulder, CO] [University of Colorado at Boulder, Boulder, CO; Piestun, Rafael [University of Colorado at Boulder, Boulder, CO] [University of Colorado at Boulder, Boulder, CO; Boye, Robert R.

2012-10-01T23:59:59.000Z

117

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

118

High-resolution measurements of the spatial and temporal evolution of megagauss magnetic fields created in intense short-pulse laser-plasma interactions  

SciTech Connect (OSTI)

A pump-probe polarimetric technique is demonstrated, which provides a complete, temporally and spatially resolved mapping of the megagauss magnetic fields generated in intense short-pulse laser-plasma interactions. A normally incident time-delayed probe pulse reflected from its critical surface undergoes a change in its ellipticity according to the magneto-optic Cotton-Mouton effect due to the azimuthal nature of the ambient self-generated megagauss magnetic fields. The temporal resolution of the magnetic field mapping is typically of the order of the pulsewidth, limited by the laser intensity contrast, whereas a spatial resolution of a few ?m is achieved by this optical technique. High-harmonics of the probe can be employed to penetrate deeper into the plasma to even near-solid densities. The spatial and temporal evolution of the megagauss magnetic fields at the target front as well as at the target rear are presented. The ?m-scale resolution of the magnetic field mapping provides valuable information on the filamentary instabilities at the target front, whereas probing the target rear mirrors the highly complex fast electron transport in intense laser-plasma interactions.

Chatterjee, Gourab, E-mail: gourab@tifr.res.in; Singh, Prashant Kumar; Adak, Amitava; Lad, Amit D.; Kumar, G. Ravindra, E-mail: grk@tifr.res.in [Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400 005 (India)

2014-01-15T23:59:59.000Z

119

Rapid high-resolution spin- and angle-resolved photoemission spectroscopy with pulsed laser source and time-of-flight spectrometer  

SciTech Connect (OSTI)

A high-efficiency spin- and angle-resolved photoemission spectroscopy (spin-ARPES) spectrometer is coupled with a laboratory-based laser for rapid high-resolution measurements. The spectrometer combines time-of-flight (TOF) energy measurements with low-energy exchange scattering spin polarimetry for high detection efficiencies. Samples are irradiated with fourth harmonic photons generated from a cavity-dumped Ti:sapphire laser that provides high photon flux in a narrow bandwidth, with a pulse timing structure ideally matched to the needs of the TOF spectrometer. The overall efficiency of the combined system results in near-E{sub F} spin-resolved ARPES measurements with an unprecedented combination of energy resolution and acquisition speed. This allows high-resolution spin measurements with a large number of data points spanning multiple dimensions of interest (energy, momentum, photon polarization, etc.) and thus enables experiments not otherwise possible. The system is demonstrated with spin-resolved energy and momentum mapping of the L-gap Au(111) surface states, a prototypical Rashba system. The successful integration of the spectrometer with the pulsed laser system demonstrates its potential for simultaneous spin- and time-resolved ARPES with pump-probe based measurements.

Gotlieb, K. [Graduate Group in Applied Science and Technology, University of California, Berkeley, California 94720 (United States)] [Graduate Group in Applied Science and Technology, University of California, Berkeley, California 94720 (United States); Hussain, Z.; Bostwick, A.; Jozwiak, C. [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)] [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Lanzara, A. [Department of Physics, University of California, Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)] [Department of Physics, University of California, Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2013-09-15T23:59:59.000Z

120

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

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


121

3-D seismology in the Arabian Gulf  

SciTech Connect (OSTI)

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

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

1995-08-01T23:59:59.000Z

122

3, 35433588, 2003 3-D air pollution  

E-Print Network [OSTI]

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

Boyer, Edmond

123

BEAMS3D Neutral Beam Injection Model  

SciTech Connect (OSTI)

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

Lazerson, Samuel

2014-04-14T23:59:59.000Z

124

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

SciTech Connect (OSTI)

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.

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

2005-03-18T23:59:59.000Z

125

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

E-Print Network [OSTI]

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

Thorlund, Steffen

2009-01-01T23:59:59.000Z

126

D3-D7 inflationary model and M theory  

Science Journals Connector (OSTI)

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

Keshav Dasgupta; Carlos Herdeiro; Shinji Hirano; Renata Kallosh

2002-05-23T23:59:59.000Z

127

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

E-Print Network [OSTI]

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

Mintmire, John W.

128

3D packaging for integrated circuit systems  

SciTech Connect (OSTI)

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

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

1996-11-01T23:59:59.000Z

129

Investigations in massive 3D gravity  

SciTech Connect (OSTI)

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

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

2011-05-15T23:59:59.000Z

130

RELAP5-3D Developer Guidelines and Programming Practices  

SciTech Connect (OSTI)

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

Dr. George L Mesina

2014-03-01T23:59:59.000Z

131

High-resolution X-ray characterization of mid-IR Al0.45Ga0.55As/GaAs Quantum Cascade Laser structures  

Science Journals Connector (OSTI)

Abstract In this paper, the X-ray diffraction profiles of Quantum Cascade Laser (QCL) structures have been investigated. The examined structures were grown by molecular beam epitaxy. The crystallographic characterization was carried out using high resolution X-ray diffractometer. The information about thickness of individual layers and periodicity of the structures was derived from simulation of diffraction profiles calculated using dynamical diffraction theory. The influence of interface roughness on the shape of satellite peaks was studied. The particular attention has been paid to the analysis of the broadening of satellite peaks. The presented results show that broadening is due to the variation of thickness of individual layers.

J. Kubacka-Traczyk; I. Sankowska; O.H. Seeck; K. Kosiel; M. Bugajski

2014-01-01T23:59:59.000Z

132

Multiphoton Laser Processing: A Unique and Simple Way to Enter the  

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

Multiphoton Laser Processing: A Unique and Simple Way to Enter the Multiphoton Laser Processing: A Unique and Simple Way to Enter the Nano-Platform Speaker(s): Andreas Ostendorf Date: January 27, 2006 - 12:00pm Location: Bldg. 90 Multiphoton laser processing is one of the rapidly advancing laser technologies, providing unique possibilities for the fabrication of two- and three-dimensional microstructures. Multiphoton material processing has very important advantages over processes based on single photon absorption: an increased spatial resolution and the possibility of photofabrication inside transparent materials. Due to nonlinear nature of multiphoton processing, applications of ultrashort laser systems allow one to overcome the diffraction limit and to produce high quality 3D microstructures with a sub-wavelength resolution. This is very powerful

133

3D View Inside the Skeleton with X-ray Microscopy: Imaging Bone at the  

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

3D View Inside the Skeleton with X-ray Microscopy: Imaging Bone 3D View Inside the Skeleton with X-ray Microscopy: Imaging Bone at the Nanoscale Scientists studying osteoporosis and other skeletal diseases are interested in the 3D structure of bone and its responses to conditions such as weightlessness, radiation (of particular interest to astronauts) and vitamin D deficiency. The current gold standard, micro-computed tomography (micro-CT), provides 3D images of trabeculae, the small interior struts of bone tissue, and electron microscopy can provide nanometer resolution of thin tissue slices. Hard X-ray transmission microscopy has provided the first 3D view of bone structure within individual trabeculae on the nanoscale. figure 1 Figure 1 Micro-CT (left) shows trabecular structure inside of bone. Transmission X-ray microscopy (TXM; center and right) can reveal localized details of osteocyte lacunae and their processes.

134

3D MHD Modeling of the Galaxy  

Science Journals Connector (OSTI)

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

G. C. Gmez; D. P. Cox

2005-01-01T23:59:59.000Z

135

Printed 3D Multi-View Images  

Science Journals Connector (OSTI)

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

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

2001-01-01T23:59:59.000Z

136

Internet video streaming using 3-D SPIHT  

E-Print Network [OSTI]

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

Jiang, Jianhong

2012-06-07T23:59:59.000Z

137

3D face recognition with wireless transportation  

E-Print Network [OSTI]

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

Zou, Le

2009-05-15T23:59:59.000Z

138

Three dimensional (3D) optical information processing  

E-Print Network [OSTI]

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

Tian, Kehan

2006-01-01T23:59:59.000Z

139

3D Spectroscopy and the Virtual Observatory  

E-Print Network [OSTI]

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

Bryan W. Miller

2007-08-15T23:59:59.000Z

140

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

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


141

3-D MAPPING TECHNOLOGIES FOR HIGH LEVEL WASTE TANKS  

SciTech Connect (OSTI)

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

Marzolf, A.; Folsom, M.

2010-08-31T23:59:59.000Z

142

3D tomodosimetry using long scintillating fibers: A feasibility study  

SciTech Connect (OSTI)

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

Goulet, Mathieu; Archambault, Louis; Beaulieu, Luc; Gingras, Luc [Dpartement de Physique, de Gnie Physique et dOptique et Centre de Recherche sur le cancer, Universit Laval, Qubec, Qubec G1V 0A6, Canada, and Dpartement de Radio-Oncologie and CRCHU de Quebec, CHU de Qubec, 11 Cte du Palais, Qubec, Qubec G1R 2J6 (Canada)] [Dpartement de Physique, de Gnie Physique et dOptique et Centre de Recherche sur le cancer, Universit Laval, Qubec, Qubec G1V 0A6, Canada, and Dpartement de Radio-Oncologie and CRCHU de Quebec, CHU de Qubec, 11 Cte du Palais, Qubec, Qubec G1R 2J6 (Canada)

2013-10-15T23:59:59.000Z

143

Digital multimirror devices for precision laser micromachining  

E-Print Network [OSTI]

DMD LIFT results 24 PMMA donors New 3D printing technology! BiTe semiconductor film New laser 3D printing facility...An ORC breakthrough 75 µm #12;Summary · DMDs are very useful for precise ablation

144

Development of a physical 3D anthropomorphic breast phantom  

SciTech Connect (OSTI)

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

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

2011-02-15T23:59:59.000Z

145

3D Self-Portraits Etienne Vouga2  

E-Print Network [OSTI]

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

O'Brien, James F.

146

3D Engineered Models for Construction Support & Available Tools  

E-Print Network [OSTI]

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

147

3D Keypoints Detection for Objects Recognition Ayet Shaiek1  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

148

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

E-Print Network [OSTI]

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

Kawato, Suguru

149

Superplastic forming using NIKE3D  

SciTech Connect (OSTI)

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

Puso, M.

1996-12-04T23:59:59.000Z

150

3D printing of multifunctional nanocomposites  

Science Journals Connector (OSTI)

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

Thomas A. Campbell; Olga S. Ivanova

2013-01-01T23:59:59.000Z

151

3D Modeling Engine Representation Summary Report  

SciTech Connect (OSTI)

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

Steven Prescott; Ramprasad Sampath; Curtis Smith; Timothy Yang

2014-09-01T23:59:59.000Z

152

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

E-Print Network [OSTI]

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

Moura, José

153

A 3D Printed Fluidic Device that Enables Integrated Features  

Science Journals Connector (OSTI)

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

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

2013-05-21T23:59:59.000Z

154

A 3D Computer Simulation Test of the Leibowitz Hypothesis  

E-Print Network [OSTI]

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

Barton, Joseph E.; Cohn, Theodore E

2007-01-01T23:59:59.000Z

155

3D Magnetotelluic characterization of the Coso Geothermal Field  

E-Print Network [OSTI]

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

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

2008-01-01T23:59:59.000Z

156

Physical sectioning in 3D biological microscopy  

E-Print Network [OSTI]

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

Guntupalli, Jyothi Swaroop

2008-10-10T23:59:59.000Z

157

Physical sectioning in 3D biological microscopy  

E-Print Network [OSTI]

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

Guntupalli, Jyothi Swaroop

2009-05-15T23:59:59.000Z

158

Printing 3D Catalytic Devices | The Ames Laboratory  

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

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

159

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

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

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

160

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

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

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

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


161

Advanced 3D Detectors for Research | U.S. DOE Office of Science (SC)  

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

Advanced 3D Detectors for Research Advanced 3D Detectors for Research Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » January 2013 Advanced 3D Detectors for Research Gamma-ray detectors built with silicon photomultiplier arrays provide high-resolution 3D imaging for research. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Jefferson Lab Silicon photomultiplier array. The Office of Nuclear Physics funds a community of scientists to do basic

162

Validation of Plaster Endocast Morphology Through 3D CT Image Analysis  

E-Print Network [OSTI]

Validation of Plaster Endocast Morphology Through 3D CT Image Analysis P. Thomas Schoenemann,1 by creating endo- casts out of rubber latex shells filled with plaster. The extent to which the method questions. Pairs of virtual endocasts (VEs) created from high-resolution CT scans of corresponding latex/plaster

Schoenemann, P. Thomas

163

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

E-Print Network [OSTI]

of Process with commercial standard equipment Y Process designed for deployment in large volume production Y3D Patterning of Micro and Nanostructures by Ion Controlled Etching (ICE) process Technology offer: heinz.goedl@tuwien.ac.at Contact Ion implantation controlled process for high resolution patterning of 3

Szmolyan, Peter

164

Section headings : Cavity and void detection1 SOIL CRACKS DETECTION BY 3D ELECTRICAL RESISTIVITY3  

E-Print Network [OSTI]

on limited size sample. Three-15 dimensional electrical resistivity prospecting enables now to monitor crack dimensional electrical resistivity surveys are commonly gathered by a network of in-line18 survey arrays medium 3D electrical resistivity22 model resolution was sensitive to electrode configuration orientation

Paris-Sud XI, Université de

165

3-D Model for Deactivation & Decommissioning  

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

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

166

Fiber reinforcement during 3D printing  

Science Journals Connector (OSTI)

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

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

2015-01-01T23:59:59.000Z

167

3-D Metals | Open Energy Information  

Open Energy Info (EERE)

Metals Metals Jump to: navigation, search Name 3-D Metals Facility 3-D Metals Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Location Valley City OH Coordinates 41.2481362°, -81.88305616° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.2481362,"lon":-81.88305616,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

168

Evolutions in 3D numerical relativity using fixed mesh refinement  

E-Print Network [OSTI]

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

Erik Schnetter; Scott H. Hawley; Ian Hawke

2004-03-02T23:59:59.000Z

169

3D-Printing Spatially Varying BRDFs  

Science Journals Connector (OSTI)

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

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

2013-11-01T23:59:59.000Z

170

3D Imaging with Holographic Tomography  

Science Journals Connector (OSTI)

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

Colin J. R. Sheppard; Shan Shan Kou

2010-01-01T23:59:59.000Z

171

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

172

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

173

3D Model Retrieval based on Adaptive Views Clustering  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

174

Stress relief: improving structural strength of 3D printable objects  

Science Journals Connector (OSTI)

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

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

2012-08-01T23:59:59.000Z

175

A Simple Proposal for Radial 3D Needlets  

E-Print Network [OSTI]

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

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

2014-01-01T23:59:59.000Z

176

AVES 3D: A NEW ONLINE RESOURCE FOR AVIAN SKELETAL ANATOMY Leon CLAESSENS, Scott EDWARDS, Rachael MARTINEZ, Mike KRZYZAK, Mark ECKARDT, Greg LESLIE, Mike MARCUCCI, Scott NEABORE, Ivan VRCEK, Sam MOSS, Kevin GRASSI  

E-Print Network [OSTI]

AVES 3D: A NEW ONLINE RESOURCE FOR AVIAN SKELETAL ANATOMY Leon CLAESSENS, Scott EDWARDS, Rachael the launch of a new National Science Foundation funded online resource for avian skeletal anatomy, www.Aves3D birds. The Aves 3D database is produced through non-contact laser scanning of skeletal material from

Claessens, Leon

177

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

E-Print Network [OSTI]

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

Barron, John

178

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

E-Print Network [OSTI]

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

Kawato, Suguru

179

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

180

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

E-Print Network [OSTI]

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

Rippe, Karsten

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


181

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

182

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

E-Print Network [OSTI]

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

Hack, Robert

183

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

Science Journals Connector (OSTI)

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

Qihao Ji; Jessica Tanca; Sophie Janicke

2013-12-01T23:59:59.000Z

184

3D reconstruction of tensors and vectors  

SciTech Connect (OSTI)

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

Defrise, Michel; Gullberg, Grant T.

2005-02-17T23:59:59.000Z

185

Speed-line for 3D animation  

E-Print Network [OSTI]

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

Song, Won Chan

2007-04-25T23:59:59.000Z

186

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

E-Print Network [OSTI]

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

Outerelo. Raimundo

187

Rheology of nearly ideal 3d foams  

E-Print Network [OSTI]

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

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

2014-04-10T23:59:59.000Z

188

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

SciTech Connect (OSTI)

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

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

2013-04-15T23:59:59.000Z

189

A new spectrometer design for the x-ray spectroscopy of laser-produced plasmas with high (sub-ns) time resolution  

SciTech Connect (OSTI)

This paper describes a new type of x-ray crystal spectrometer, which can be used in combination with gated x-ray detectors to obtain spectra from laser-produced plasmas with a high (sub-ns) time resolution. The spectrometer consists of a convex, spherically bent crystal, which images individual spectral lines as perfectly straight lines across multiple, sequentially gated, strip detectors. Since the Bragg-reflected rays are divergent, the distance between detector and crystal is arbitrary, so that this distance can be appropriately chosen to optimize the experimental arrangement with respect to the detector parameters. The spectrometer concept was verified in proof-of-principle experiments by imaging the L?{sub 1}- and L?{sub 2}-lines of tungsten, at 9.6735 and 9.96150 keV, from a micro-focus x-ray tube with a tungsten target onto a two-dimensional pixilated Pilatus detector, using a convex, spherically bent Si-422 crystal with a radius of curvature of 500 mm.

Bitter, M., E-mail: bitter@pppl.gov; Hill, K. W.; Efthimion, P. C.; Delgado-Aparicio, L.; Pablant, N. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Lu, Jian [Department of Engineering, Chongqing University, Chongqing 400044 (China); Beiersdorfer, P.; Chen, Hui [Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

2014-11-15T23:59:59.000Z

190

Toward a compact underwater structured light 3-D imaging system  

E-Print Network [OSTI]

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

Dawson, Geoffrey E

2013-01-01T23:59:59.000Z

191

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

E-Print Network [OSTI]

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

Hammoudi, Karim

2011-01-01T23:59:59.000Z

192

Stereoscopic Presentations Taking the Difficulty out of 3D  

E-Print Network [OSTI]

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

193

Computational 3D and reflectivity imaging with high photon efficiency  

E-Print Network [OSTI]

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

Shin, Dongeek

2014-01-01T23:59:59.000Z

194

3-D Earth model more accurately pinpoints explosions  

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

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

195

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

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

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

196

3D printing and simulation of naturally randomized cellular automata  

Science Journals Connector (OSTI)

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

Yasusi Kanada

2014-11-01T23:59:59.000Z

197

3D Printing Comes of Age | Department of Energy  

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

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

198

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

Open Energy Info (EERE)

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

199

Characterizing tensile loading responses of 3D printed samples  

E-Print Network [OSTI]

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

Haid, Christopher M

2014-01-01T23:59:59.000Z

200

3-D GRMHD Simulations of Generating Jets  

E-Print Network [OSTI]

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

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

2002-01-01T23:59:59.000Z

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


201

3-D GRMHD Simulations of Generating Jets  

E-Print Network [OSTI]

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

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

2002-08-05T23:59:59.000Z

202

Localization and 3D Reconstruction of Urban Scenes Using GPS  

E-Print Network [OSTI]

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

Haro, Antonio

203

3D Rendering and Ray Casting Michael Kazhdan  

E-Print Network [OSTI]

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

Kazhdan, Michael

204

Using interactive 3-D visualization for public consultation  

Science Journals Connector (OSTI)

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

Paul van Schaik

2010-11-01T23:59:59.000Z

205

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

206

Issues in the Development of 3D Icons Rob Erbacher  

E-Print Network [OSTI]

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

Erbacher, Robert F.

207

3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1  

E-Print Network [OSTI]

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

Boyer, Edmond

208

3D RECONSTRUCTION FROM A SINGLE IMAGE Diego Rother  

E-Print Network [OSTI]

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

209

Fast 3D Scanning for Biometric Identification and Verification  

E-Print Network [OSTI]

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

McShea, Daniel W.

210

3D imaging and ranging by time-correlated single  

E-Print Network [OSTI]

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

Buller, Gerald S.

211

3D Scanning for Biometric Identification and Verification  

E-Print Network [OSTI]

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

McShea, Daniel W.

212

3D discrete rotations using hinge angles Yohan Thibaulta,  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

213

3D Engineered Models for Stringless Paving Workshop  

E-Print Network [OSTI]

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

214

The 3D jigsaw puzzle: mapping large indoor spaces  

E-Print Network [OSTI]

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

Anderson, Richard

215

Analyzing 3D Images of the Brain NICHOLAS AYACHE  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

216

SALSA3D : a global 3D p-velocity model of the Earth's crust and mantle for improved event location.  

SciTech Connect (OSTI)

To test the hypothesis that high quality 3D Earth models will produce seismic event locations which are more accurate and more precise, we are developing a global 3D P wave velocity model of the Earth's crust and mantle using seismic tomography. In this paper, we present the most recent version of our model, SALSA3D version 1.5, and demonstrate its ability to reduce mislocations for a large set of realizations derived from a carefully chosen set of globally-distributed ground truth events. Our model is derived from the latest version of the Ground Truth (GT) catalog of P and Pn travel time picks assembled by Los Alamos National Laboratory. To prevent over-weighting due to ray path redundancy and to reduce the computational burden, we cluster rays to produce representative rays. Reduction in the total number of ray paths is {approx}50%. The model is represented using the triangular tessellation system described by Ballard et al. (2009), which incorporates variable resolution in both the geographic and radial dimensions. For our starting model, we use a simplified two layer crustal model derived from the Crust 2.0 model over a uniform AK135 mantle. Sufficient damping is used to reduce velocity adjustments so that ray path changes between iterations are small. We obtain proper model smoothness by using progressive grid refinement, refining the grid only around areas with significant velocity changes from the starting model. At each grid refinement level except the last one we limit the number of iterations to prevent convergence thereby preserving aspects of broad features resolved at coarser resolutions. Our approach produces a smooth, multi-resolution model with node density appropriate to both ray coverage and the velocity gradients required by the data. This scheme is computationally expensive, so we use a distributed computing framework based on the Java Parallel Processing Framework, providing us with {approx}400 processors. Resolution of our model is assessed using a variation of the standard checkerboard method. We compare the travel-time prediction and location capabilities of SALSA3D to standard 1D models via location tests on a global event set with GT of 5 km or better. These events generally possess hundreds of Pn and P picks from which we generate different realizations of station distributions, yielding a range of azimuthal coverage and ratios of teleseismic to regional arrivals, with which we test the robustness and quality of relocation. The SALSA3D model reduces mislocation over standard 1D ak135 regardless of Pn to P ratio, with the improvement being most pronounced at higher azimuthal gaps.

Encarnacao, Andre Villanova; Begnaud, Michael A. (Los Alamos National Laboratories); Rowe, Charlotte A. (Los Alamos National Laboratories); Young, Christopher John; Chang, Marcus C.; Ballard, Sally C.; Hipp, James Richard

2010-06-01T23:59:59.000Z

217

A global 3D P-velocity model of the Earth's crust and mantle for improved event location : SALSA3D.  

SciTech Connect (OSTI)

To test the hypothesis that high quality 3D Earth models will produce seismic event locations which are more accurate and more precise, we are developing a global 3D P wave velocity model of the Earth's crust and mantle using seismic tomography. In this paper, we present the most recent version of our model, SALSA3D version 1.5, and demonstrate its ability to reduce mislocations for a large set of realizations derived from a carefully chosen set of globally-distributed ground truth events. Our model is derived from the latest version of the Ground Truth (GT) catalog of P and Pn travel time picks assembled by Los Alamos National Laboratory. To prevent over-weighting due to ray path redundancy and to reduce the computational burden, we cluster rays to produce representative rays. Reduction in the total number of ray paths is {approx}50%. The model is represented using the triangular tessellation system described by Ballard et al. (2009), which incorporates variable resolution in both the geographic and radial dimensions. For our starting model, we use a simplified two layer crustal model derived from the Crust 2.0 model over a uniform AK135 mantle. Sufficient damping is used to reduce velocity adjustments so that ray path changes between iterations are small. We obtain proper model smoothness by using progressive grid refinement, refining the grid only around areas with significant velocity changes from the starting model. At each grid refinement level except the last one we limit the number of iterations to prevent convergence thereby preserving aspects of broad features resolved at coarser resolutions. Our approach produces a smooth, multi-resolution model with node density appropriate to both ray coverage and the velocity gradients required by the data. This scheme is computationally expensive, so we use a distributed computing framework based on the Java Parallel Processing Framework, providing us with {approx}400 processors. Resolution of our model is assessed using a variation of the standard checkerboard method. We compare the travel-time prediction and location capabilities of SALSA3D to standard 1D models via location tests on a global event set with GT of 5 km or better. These events generally possess hundreds of Pn and P picks from which we generate different realizations of station distributions, yielding a range of azimuthal coverage and ratios of teleseismic to regional arrivals, with which we test the robustness and quality of relocation. The SALSA3D model reduces mislocation over standard 1D ak135 regardless of Pn to P ratio, with the improvement being most pronounced at higher azimuthal gaps.

Young, Christopher John; Steck, Lee K. (Los Alamos National Laboratory); Phillips, William Scott (Los Alamos National Laboratory); Ballard, Sanford; Chang, Marcus C.; Rowe, Charlotte A. (Los Alamos National Laboratory); Encarnacao, Andre Villanova; Begnaud, Michael A. (Los Alamos National Laboratory); Hipp, James Richard

2010-07-01T23:59:59.000Z

218

The solar photospheric abundance of phosphorus: results from co5bold 3D model atmospheres  

E-Print Network [OSTI]

aims: We determine the solar abundance of phosphorus using co5bold 3D hydrodynamic model atmospheres. method: High resolution, high signal-to-noise solar spectra of the PI lines of Multiplet 1 at 1051-1068 nm are compared to line formation computations performed on a co5bold solar model atmosphere. results: We find A(P)=5.46+- 0.04, in good agreement with previous analysis based on 1D model atmospheres, due to the fact that the PI lines of Mult. 1 are little affected by 3D effects. We cannot confirm an earlier claim by other authors of a downward revision of the solar P abundance by 0.1 dex employing a 3D model atmosphere. Concerning other stars, we found modest (<0.1 dex) 3D abundance corrections for P among four F dwarf model atmospheres of different metallicity, being largest at lowest metallicity. conclusions: We conclude that 3D abundance corrections are generally rather small for the PI lines studied in this work. They are marginally relevant for metal-poor stars, but may be neglected in the Sun.

Elisabetta Caffau; Matthias Steffen; Luca Sbordone; Hans-G. Ludwig; Piercarlo Bonifacio

2007-08-12T23:59:59.000Z

219

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

E-Print Network [OSTI]

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

Herbin, Raphaèle

220

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

Open Energy Info (EERE)

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

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


221

Additively manufactured 3D porous Ti-6Al-4V constructs mimic trabecular bone structure and regulate osteoblast proliferation, differentiation and local factor production in a porosity and surface roughness dependent manner  

Science Journals Connector (OSTI)

Additive manufacturing by laser sintering is able to produce high resolution metal constructs for orthopedic and dental implants. In this study, we used a human trabecular bone template to design and manufacture Ti-6Al-4V constructs with varying porosity via laser sintering. Characterization of constructs revealed interconnected porosities ranging from 1570% with compressive moduli of 25793693 MPa. These constructs with macro porosity were further surface-treated to create a desirable multi-scale micro-/nano-roughness, which has been shown to enhance the osseointegration process. Osteoblasts (MG63 cells) exhibited high viability when grown on the constructs. Proliferation (DNA) and alkaline phosphatase specific activity, an early differentiation marker, decreased as porosity increased, while osteocalcin, a late differentiation marker, as well as osteoprotegerin, vascular endothelial growth factor and bone morphogenetic proteins 2 and 4 increased with increasing porosity. Three-dimensional (3D) constructs with the highest porosity and surface modification supported the greatest osteoblast differentiation and local factor production. These results indicate that additively manufactured 3D porous constructs mimicking human trabecular bone and produced with additional surface treatment can be customized for increased osteoblast response. Increased factors for osteoblast maturation and differentiation on high porosity constructs suggest the enhanced performance of these surfaces for increasing osseointegration in vivo.

Alice Cheng; Aiza Humayun; David J Cohen; Barbara D Boyan; Zvi Schwartz

2014-01-01T23:59:59.000Z

222

Developing a low cost 3D imaging solution for inscribed stone surface analysis  

Science Journals Connector (OSTI)

Abstract The article uses a 3D imaging based solution where surface shading is determined by surface geometry. It is applied to inscribed stone surfaces in order to examine lettering and other carvings dated to the 5th - 9th centuries AD. Mid-range terrestrial laser scanning and structure from motion (SfM) based photogrammetry were cross-examined in order to create a low cost, but nevertheless highly accurate solution to 3D imaging that requires a computer, a camera, open source software like CloudCompare and a SfM based service called Photo located at ReCap360.autodesk.com. Ambient occlusion (AO) shading was used to show improvements made to the SfM data, which was achieved by adding known parameters to all photographs used. It simulates the direct light components of a light source so that exposed areas appear lightened and enclosed areas (like crevices and incisions) appear darkened. In the case study, AO was used to differentiate lettering in the inscription from damage and weathering on the granite surface of the Tristan Stone, as well as picking up a previously unnoticed wheel-head cross. This particular inscribed stone is located near Fowey in Cornwall, UK, and was known as the Long Stone before its name was changed on British Ordnance Survey (OS) Maps in 1951. The Tristan Stone was the first artefact to be scanned by the FARO Focus3D laser scanner after its release in 2010.

Adam P. Spring; Caradoc Peters

2014-01-01T23:59:59.000Z

223

3D micro-structures by piezoelectric inkjet printing of gold nanofluids  

Science Journals Connector (OSTI)

3D solid and pocketed micro-wires and micro-walls are needed for emerging applications that require fine-scale functional structures in three dimensions, including micro-heaters, micro-reactors and solar cells. To fulfill this demand, 3D micro-structures with high aspect ratios (>50:1) are developed on a low-cost basis that is applicable for mass production with high throughput, also enabling the printing of structures that cannot be manufactured by conventional techniques. Additively patterned 3D gold micro-walls and -wires are grown by piezoelectric inkjet printing of nanofluids, selectively combined with in situ simultaneous laser annealing that can be applied to large-scale bulk production. It is demonstrated how the results of 3D printing depend on the piezoelectric voltage pulse, the substrate heating temperature and the structure height, resulting in the identification of thermal regions of optimal printing for best printing results. Furthermore a parametric analysis of the applied substrate temperature during printing leads to proposed temperature ranges for solid and pocketed micro-wire and micro-wall growth for selected frequency and voltages.

Carmen Kullmann; Niklas C Schirmer; Ming-Tsang Lee; Seung Hwan Ko; Nico Hotz; Costas P Grigoropoulos; Dimos Poulikakos

2012-01-01T23:59:59.000Z

224

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

Science Journals Connector (OSTI)

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

Tom Verhoeff

2010-01-01T23:59:59.000Z

225

NASA to send 3D printer into space  

Science Journals Connector (OSTI)

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

Alexandra Witze

2014-09-10T23:59:59.000Z

226

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

Open Energy Info (EERE)

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

227

Coordination Polymers A Unique 3D Alternating Ferro-and  

E-Print Network [OSTI]

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

Gao, Song

228

Identificering af teknologi gennem narrativer; 3D print.  

E-Print Network [OSTI]

??Denne rapport arbejder med en gennemgang af den skaldte 3D printer teknologi. Denne vil sttes i sammenhng med et teknologifilosofisk form of life ? forstelse (more)

Petersen, Mikael

2011-01-01T23:59:59.000Z

229

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

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

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

230

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

E-Print Network [OSTI]

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

Baecher, Moritz Niklaus

2013-01-01T23:59:59.000Z

231

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization  

Broader source: Energy.gov [DOE]

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

232

Just Plain Cool, the 3D Printed Shelby Cobra  

Broader source: Energy.gov [DOE]

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

233

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

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

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

234

Making 3D Printed Christmas Ornaments | GE Global Research  

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

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

235

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

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

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

236

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

237

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

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

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

238

SPATIALLY UNSUPERVISED ANALYSIS OF WITHIN-SUBJECT FMRI DATA USING MULTIPLE EXTRAPOLATIONS OF 3D ISING FIELD PARTITION FUNCTIONS  

E-Print Network [OSTI]

SPATIALLY UNSUPERVISED ANALYSIS OF WITHIN-SUBJECT FMRI DATA USING MULTIPLE EXTRAPOLATIONS OF 3D of spatial resolution. A more challenging approach works on the unsmoothed data by intro- ducing some prior Resonance Imaging (fMRI) data, where the goal is to automatically recover activated regions and estimate

Paris-Sud XI, Université de

239

A Complete Volumetric 3D Model of the Human Hossam Hassan, Ayman El-Baz, Aly A. Farag  

E-Print Network [OSTI]

the orthodontist with some 3-D information of the jaw. And while dental radiology is now widely accepted for the patient and may not provide all the details of the jaw. Dental radiography technology can provide as a routine technique for dental examinations, the equipment is rather expensive and the resolution, though

Louisville, University of

240

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

E-Print Network [OSTI]

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

M. Hohlmann

2013-09-03T23:59:59.000Z

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


241

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

SciTech Connect (OSTI)

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

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

2007-02-01T23:59:59.000Z

242

Shape-based retrieval and analysis of 3D models  

Science Journals Connector (OSTI)

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

Thomas Funkhouser; Michael Kazhdan

2004-08-01T23:59:59.000Z

243

WirePrint: 3D printed previews for fast prototyping  

Science Journals Connector (OSTI)

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

Stefanie Mueller, Sangha Im, Serafima Gurevich, Alexander Teibrich, Lisa Pfisterer, Franois Guimbretire, Patrick Baudisch

2014-10-01T23:59:59.000Z

244

Surface light fields for 3D photography Daniel N. Wood  

E-Print Network [OSTI]

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

Washington at Seattle, University of

245

Mastering AutoCAD Civil 3D 2011  

Science Journals Connector (OSTI)

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

P. James E. Wedding; Scott McEachron

2010-08-01T23:59:59.000Z

246

Automatic 3D modeling of palatal plaster casts Marco Andreetto  

E-Print Network [OSTI]

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

Abu-Mostafa, Yaser S.

247

Surround structured lighting: 3-D scanning with orthographic illumination  

Science Journals Connector (OSTI)

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

Douglas Lanman; Daniel Crispell; Gabriel Taubin

2009-11-01T23:59:59.000Z

248

Chopper: Partitioning models into 3D-printable parts  

E-Print Network [OSTI]

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

Luo, Linjie

249

3D Wavelet-Based Filter and Method  

DOE Patents [OSTI]

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

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

2008-08-12T23:59:59.000Z

250

3D THERMOGRAPHY FOR QUANTIFICATION OF HEAT GENERATION RESULTING FROM  

E-Print Network [OSTI]

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

Nebel, Jean-Christophe

251

Ultrafast supercontinuum fiber-laser based pump-probe scanning magneto-optical Kerr effect microscope for the investigation of electron spin dynamics in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution  

SciTech Connect (OSTI)

We describe a two-color pump-probe scanning magneto-optical Kerr effect microscope which we have developed to investigate electron spin phenomena in semiconductors at cryogenic temperatures with picosecond time and micrometer spatial resolution. The key innovation of our microscope is the usage of an ultrafast white light supercontinuum fiber-laser source which provides access to the whole visible and near-infrared spectral range. Our Kerr microscope allows for the independent selection of the excitation and detection energy while avoiding the necessity to synchronize the pulse trains of two separate picosecond laser systems. The ability to independently tune the pump and probe wavelength enables the investigation of the influence of excitation energy on the optically induced electron spin dynamics in semiconductors. We demonstrate picosecond real-space imaging of the diffusive expansion of optically excited electron spin packets in a (110) GaAs quantum well sample to illustrate the capabilities of the instrument.

Henn, T.; Kiessling, T., E-mail: tobias.kiessling@physik.uni-wuerzburg.de; Ossau, W.; Molenkamp, L. W. [Physikalisches Institut (EP3), Universitt Wrzburg, 97074 Wrzburg (Germany)] [Physikalisches Institut (EP3), Universitt Wrzburg, 97074 Wrzburg (Germany); Biermann, K.; Santos, P. V. [Paul-Drude-Institut fr Festkrperelektronik, 10117 Berlin (Germany)] [Paul-Drude-Institut fr Festkrperelektronik, 10117 Berlin (Germany)

2013-12-15T23:59:59.000Z

252

3D printing rises to the occasion | ornl.gov  

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

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

253

Energy Savings in 3-D | ornl.gov  

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

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

254

Beyond 3-D X-ray Imaging: Methodology Development and Applications in  

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

Beyond 3-D X-ray Imaging: Methodology Development and Applications in Beyond 3-D X-ray Imaging: Methodology Development and Applications in Material Science Thursday, September 6, 2012 - 10:45am SLAC, Bldg. 137, Room 226 Yijin Liu Seminar There was a revolutionary development of X-ray imaging over the past few decades. The most substantial advancements in this field are closely related to the availability of the new generation of X-ray sources and the advanced X-ray optics. The advanced X-ray Optics along with novel methodology has made it possible to extract information that is related to different interactions between the X-rays and the specimen at very fine spatial resolution. The energy tunability of the X-rays has made it possible to combine the energy scan with imaging technique. And the brilliance of the X-ray source has made it practical for many sophisticated

255

Formation of microbeam using tabletop soft X-ray laser  

Science Journals Connector (OSTI)

An X-ray microprobe with a sub-micron size beam and high intensity can provide X-ray analyses with a remarkable spatial resolution. We have performed focusing of an X-ray laser output into a sub-micron beam for the first time. In our experiment, an X-ray laser of Li-like Al 3d4f transition at 15.47 nm was delivered from an unstable cavity consisting of a concave mirror and a flat mirror with a square orifice of 100100 ?m in size. The beam from the orifice was then focused by using a Schwarzschild mirror coated with a Mo/Si multilayer. An X-ray beam size with a diameter of about 0.45 ?m and an estimated photon number of about 2106 photons per shot was achieved. Such sources could be well suited for the realization of X-ray microprobes.

Tadayuki Ohchi; Naohiro Yamaguchi; Chiemi Fujikawa; Tamio Hara

1999-01-01T23:59:59.000Z

256

Stress-induced Effects Caused by 3D IC TSV Packaging in Advanced Semiconductor Device Performance  

SciTech Connect (OSTI)

Potential challenges with managing mechanical stress and the consequent effects on device performance for advanced 3D through-silicon-via (TSV) based technologies are outlined. The paper addresses the growing need in a simulation-based design verification flow capable to analyze a design of 3D IC stacks and to determine across-die out-of-spec variations in device electrical characteristics caused by the layout and through-silicon-via (TSV)/package-induced mechanical stress. The limited characterization/measurement capabilities for 3D IC stacks and a strict ''good die'' requirement make this type of analysis critical for the achievement of an acceptable level of functional and parametric yield and reliability. The paper focuses on the development of a design-for-manufacturability (DFM) type of methodology for managing mechanical stresses during a sequence of designs of 3D TSV-based dies, stacks and packages. A set of physics-based compact models for a multi-scale simulation to assess the mechanical stress across the device layers in silicon chips stacked and packaged with the 3D TSV technology is proposed. A calibration technique based on fitting to measured stress components and electrical characteristics of the test-chip devices is presented. A strategy for generation of a simulation feeding data and respective materials characterization approach are proposed, with the goal to generate a database for multi-scale material parameters of wafer-level and package-level structures. For model validation, high-resolution strain measurements in Si channels of the test-chip devices are needed. At the nanoscale, the transmission electron microscopy (TEM) is the only technique available for sub-10 nm strain measurements so far.

Sukharev, V.; Kteyan, A.; Choy, J.-H.; Hovsepyan, H.; Markosian, A. [Mentor Graphics Corporation, 46871 Bayside Parkway, Fremont, CA 94538 (United States); Zschech, E.; Huebner, R. [Fraunhofer Institute for Non-Destructive Testing, Maria-Reiche-Strasse 2, 01109 Dresden (Germany)

2011-11-10T23:59:59.000Z

257

Real time 3D and heterogeneous data fusion  

SciTech Connect (OSTI)

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

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

1998-03-01T23:59:59.000Z

258

3D Spectroscopy in the Virtual Observatory: Current Status  

E-Print Network [OSTI]

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

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

2007-11-02T23:59:59.000Z

259

Grafta: A 3D environment for biomolecular networks  

Science Journals Connector (OSTI)

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

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

2009-01-01T23:59:59.000Z

260

Controlling Tokamak Geometry with 3D Magnetic Perturbations  

E-Print Network [OSTI]

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

Bird, Thomas M

2014-01-01T23:59:59.000Z

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


261

Shallow quantum well excitons: 2D or 3D?  

Science Journals Connector (OSTI)

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

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

1993-01-18T23:59:59.000Z

262

Approaches for Additive Manufacturing of 3D Electronic Applications  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

263

Fluorescence Detector for Capillary Separations Fabricated by 3D Printing  

Science Journals Connector (OSTI)

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

Jan Prikryl; Frantisek Foret

2014-11-26T23:59:59.000Z

264

Comparison of 2D and 3D gamma analyses  

SciTech Connect (OSTI)

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

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

2014-02-15T23:59:59.000Z

265

A mobile robot based system for fully automated thermal 3D mapping  

Science Journals Connector (OSTI)

Abstract It is hard to imagine living in a building without electricity and a heating or cooling system these days. Factories and data centers are equally dependent on a continuous functioning of these systems. As beneficial as this development is for our daily life, the consequences of a failure are critical. Malfunctioning power supplies or temperature regulation systems can cause the close-down of an entire factory or data center. Heat and air conditioning losses in buildings lead to a large waste of the limited energy resources and pollute the environment unnecessarily. To detect these flaws as quickly as possible and to prevent the negative consequences constant monitoring of power lines and heat sources is necessary. To this end, we propose a fully automatic system that creates 3D thermal models of indoor environments. The proposed system consists of a mobile platform that is equipped with a 3D laser scanner, an RGB camera and a thermal camera. A novel 3D exploration algorithm ensures efficient data collection that covers the entire scene. The data from all sensors collected at different positions is joined into one common reference frame using calibration and scan matching. In the post-processing step a model is built and points of interest are automatically detected. A viewer is presented that aids experts in analyzing the heat flow and localizing and identifying heat leaks. Results are shown that demonstrate the functionality of the system.

Dorit Borrmann; Andreas Nchter; Marija akulovi?; Ivan Maurovi?; Ivan Petrovi?; Dinko Osmankovi?; Jasmin Velagi?

2014-01-01T23:59:59.000Z

266

Software: DIF3D - Nuclear Engineering Division (Argonne)  

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

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

267

3-D Earth model more accurately pinpoints explosions  

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

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

268

3D Photonic Crystals for Photon Management in Solar Cells  

Science Journals Connector (OSTI)

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

Wehrspohn, Ralf; Sprafke, Alexander

269

3-D Thermoconvection in an Anisotropic Inclined Sedimentary Layer  

Science Journals Connector (OSTI)

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

Anne Ormond; Pierre Genthon

1993-02-01T23:59:59.000Z

270

3D Printing a Classic | Department of Energy  

Energy Savers [EERE]

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

271

3D Modelling of Enhanced Surface Emission by Surface Roughening  

Science Journals Connector (OSTI)

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

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

272

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

E-Print Network [OSTI]

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

Kumar, Sneh

2010-01-01T23:59:59.000Z

273

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

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

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

274

Introducing 3D Venn and Euler Diagrams Peter Rodgers1  

E-Print Network [OSTI]

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

Kent, University of

275

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

E-Print Network [OSTI]

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

Christian, Eric

276

3D Maneuvers For Asymmetric Under-Actuated Rigid Body  

E-Print Network [OSTI]

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

Kim, Dong Hoon

2013-08-01T23:59:59.000Z

277

Quantitative Data Analysis Methods for 3D Microstructure  

E-Print Network [OSTI]

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

278

3-D Earth model more accurately pinpoints explosions  

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

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

279

3D EMHD reconnection in a laboratory plasma  

Science Journals Connector (OSTI)

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

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

2001-06-01T23:59:59.000Z

280

A fast 3D full-wave solver for nanophotonics  

E-Print Network [OSTI]

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

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

2007-01-01T23:59:59.000Z

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


281

Segmentation of 3D Meshes through Spectral Clustering  

E-Print Network [OSTI]

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

Zhang, Richard "Hao"

282

3D pose estimation and segmentation using specular cues  

E-Print Network [OSTI]

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

Raskar, Ramesh

283

3D printing: a valuable resource in human anatomy education  

Science Journals Connector (OSTI)

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

Mauro Vaccarezza; Veronica Papa

2014-10-01T23:59:59.000Z

284

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

E-Print Network [OSTI]

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

Pinnacle

2004-04-23T23:59:59.000Z

285

3-D Seismic Methods for Shallow Imaging Beneath Pavement  

E-Print Network [OSTI]

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

Miller, Brian

2013-05-31T23:59:59.000Z

286

3D Tracking at the Nanoscale | The Ames Laboratory  

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

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

287

An alternative derivation of the Minimal massive 3D gravity  

E-Print Network [OSTI]

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

Ahmet Baykal

2014-08-22T23:59:59.000Z

288

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

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

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

289

Observing Warm Clouds in 3D Using ARM Scanning Cloud  

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

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

290

3D Representations for Software Visualization Andrian Marcus  

E-Print Network [OSTI]

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

291

Further Analysis of 3D Magnetotelluric Measurements Over the Coso  

Open Energy Info (EERE)

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

292

3-D Earth model more accurately pinpoints explosions  

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

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

293

D3-D7 holographic dual of a perturbed 3D CFT  

Science Journals Connector (OSTI)

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

Hamid Omid and Gordon W. Semenoff

2013-07-10T23:59:59.000Z

294

The SuperB Silicon Vertex Tracker and 3D vertical integration  

E-Print Network [OSTI]

The construction of the SuperB high luminosity collider was approved and funded by the Italian government in 2011. The performance specifications set by the target luminosity of this machine (> 10^36 cm^-2 s^-1) ask for the development of a Silicon Vertex Tracker with high resolution, high tolerance to radiation and excellent capability of handling high data rates. This paper reviews the R&D activity that is being carried out for the SuperB SVT. Special emphasis is given to the option of exploiting 3D vertical integration to build advanced pixel sensors and readout electronics that are able to comply with SuperB vertexing requirements.

Re, Valerio

2011-01-01T23:59:59.000Z

295

Migration and Accretion of Protoplanets in 2D and 3D Global Hydrodynamical Simulations  

E-Print Network [OSTI]

Planet evolution is tightly connected to the dynamics of both distant and close disk material. Hence, an appropriate description of disk-planet interaction requires global and high resolution computations, which we accomplish by applying a Nested-Grid method. Through simulations in two and three dimensions, we investigate how migration and accretion are affected by long and short range interactions. For small mass objects, 3D models provide longer growth and migration time scales than 2D ones do, whereas time lengths are comparable for large mass planets.

G. D'Angelo; W. Kley; Th. Henning

2002-08-30T23:59:59.000Z

296

Development of an embedded 3D graphics processor  

E-Print Network [OSTI]

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

Murray, Brian

2012-06-07T23:59:59.000Z

297

Object segmentation and classification using 3-D range camera  

Science Journals Connector (OSTI)

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

Xue Wei; Son Lam Phung; Abdesselam Bouzerdoum

2014-01-01T23:59:59.000Z

298

Reconhecimento de modelos 3D em realidade aumentada mvel  

Science Journals Connector (OSTI)

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

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

2013-10-01T23:59:59.000Z

299

Patient specific 3D printed phantom for IMRT quality assurance  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

300

Toward single cell traction microscopy within 3D collagen matrices  

SciTech Connect (OSTI)

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

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

2013-10-01T23:59:59.000Z

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


301

3D printing facilitated scaffold-free tissue unit fabrication  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

302

3D printing in X-ray and gamma-ray imaging: A novel method for fabricating high-density imaging apertures  

Science Journals Connector (OSTI)

Advances in 3D rapid-prototyping printers, 3D modeling software, and casting techniques allow for cost-effective fabrication of custom components in gamma-ray and X-ray imaging systems. Applications extend to new fabrication methods for custom collimators, pinholes, calibration and resolution phantoms, mounting and shielding components, and imaging apertures. Details of the fabrication process for these components, specifically the 3D printing process, cold casting with a tungsten epoxy, and lost-wax casting in platinum are presented.

Brian W. Miller; Jared W. Moore; Harrison H. Barrett; Teresa Fry; Steven Adler; Joe Sery; Lars R. Furenlid

2011-01-01T23:59:59.000Z

303

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

Science Journals Connector (OSTI)

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

S. F. Busch; M. Weidenbach; M. Fey

2014-10-01T23:59:59.000Z

304

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This proposal takes direct aim at this shortcoming. P/GSI is developing a 400 level 3C clamped downhole seismic receiver array for borehole seismic 3D imaging. This array will remove the acquisition barrier to record the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for economic use of 3D borehole seismic imaging for reservoir characterization and monitoring. By using 3C surface seismic or borehole seismic sources the 400 level receiver array will furthermore facilitate 9C reservoir imaging. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2002-05-01T23:59:59.000Z

305

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This proposal takes direct aim at this shortcoming. P/GSI is developing a 400 level 3C clamped downhole seismic receiver array for borehole seismic 3D imaging. This array will remove the acquisition barrier to record the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for economic use of 3D borehole seismic imaging for reservoir characterization and monitoring. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore facilitate 9C reservoir imaging. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2002-09-01T23:59:59.000Z

306

High Resolution Segmentation with a Time-of-Flight 3D-Camera using the Example  

E-Print Network [OSTI]

to film the blackboard, the drawings can be rendered as a crisp image with the usual video compression arises because we have two ar- eas of the screen competing for the viewer's eye: the video window showing the instructor and the board window (for a detailed explanation of this psychological issue see [18]). In order

Rojas, Raúl

307

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

E-Print Network [OSTI]

aided design (CAD) software (Autodesk Inventor, San Rafael,aided design (CAD) software (Autodesk Inventor, San Rafael,

Chia, Helena

2014-01-01T23:59:59.000Z

308

E-Print Network 3.0 - atomic resolution 3d Sample Search Results  

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

Collection: Biology and Medicine 17 Spectroscopic Imaging of Single AtomsWithin a Bulk Solid S. D. Findlay,2 Summary: , but their spectroscopic identification, with spatial...

309

3-D characterization of weathered building limestones by high resolution synchrotron X-ray microtomography  

E-Print Network [OSTI]

of external environmental agents (physical, chemical and biological) such as rain, pollution, sunlight throughout the world. Every stone extracted from a quarry is subjected to deterioration due to the action extracted from quarries or from buildings, but in places where the sampled stones can be assumed

Paris-Sud XI, Université de

310

The point-spread function measure of resolution for the 3-D electrical resistivity experiment  

Science Journals Connector (OSTI)

......infrastructure. Application to a time-lapse ground-water monitoring experiment demonstrates the utility...localization. Application of the PSF to a time-lapse ground-water remediation experiment demonstrates the utility of the PSF......

Greg A. Oldenborger; Partha S. Routh

2009-02-01T23:59:59.000Z

311

Polygon-based representations of 3D objects offer resolution independence  

E-Print Network [OSTI]

a bitmapped image, we get a blurry result. Figure 2 shows the problem for an IBR ver- sion of a teapot image but behaves properly under enlarge- ment. (b) The teapot's edge remains sharp when we enlarge it. (a) (b) #12

Chuang, Yung-Yu

312

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

E-Print Network [OSTI]

no.455008), polyacrylic acid (PAA) solution (50% solution inPA). Polyacrylic acid (PAA) solution (50% solution in water,ratio of water-based binder and PAA solution (pH 5). Binder

Chia, Helena

2014-01-01T23:59:59.000Z

313

E-Print Network 3.0 - angular resolution 3d Sample Search Results  

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

for Virtual Reality, Psychology, Rehabilitation, and Social Neuroscience Collection: Computer Technologies and Information Sciences 8 Tensor Distribution Function in Multiple...

314

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

E-Print Network [OSTI]

mountains in France (Fig. 1). The samples have been collected in newly open quarries, thus pre- served from

Boyer, Edmond

315

Bridging the Resolution Gap in Structural Modeling of 3D Genome Organization  

E-Print Network [OSTI]

Over the last decade, and especially after the advent of fluorescent in situ hybridization imaging and chromosome conformation capture methods, the availability of experimental data on genome three-dimensional organization ...

Marti-Renom, Marc A.

316

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

E-Print Network [OSTI]

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

Peng, Hanchuan

317

A 3-D wind and temperature pre-processor for ATD models  

Science Journals Connector (OSTI)

Many atmospheric transport and dispersion models, based on various approaches and applied to different spatial scales, need 3-D meteorological fields referred to regular grid systems. Data generally available, however, cannot be directly employed because of their irregularities, inconsistencies, insufficient spatial detail or inadequate terrain representation. To fill the gap between these input requirements and the practical availability of data, a meteorological pre-processing system has been set up to provide 3-D fields on the basis of measured data available inside a selected area. The system allows, for a given area, (i) extraction and smoothing of elevation data from a digital elevation model; (ii) extraction of data from different meteorological databases; (iii) interactive selection and correction among the available measurements; (iv) interpolation in time of missing data; (v) data interpolation on a selected computational grid and (vi) reconstruction of 3-D temperature and mass-consistent wind fields. The whole system is outlined and a couple of applications at different spatial resolutions are presented.

M.G. Morselli; G. Calori; S. Finardi; C. Mazzola

1997-01-01T23:59:59.000Z

318

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

E-Print Network [OSTI]

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

C. Morisset; G. Stasinska; M. Pena

2005-09-22T23:59:59.000Z

319

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

SciTech Connect (OSTI)

Hydrothermal reactions of rigid 1,4-bis(imidazol-1-yl)benzene (dib) and 1,4-bis(imidazol-1-yl)-2,5-dimethylbenzene (dimb) with deprotonated thiophene-2,5-dicarboxylic acid (H{sub 2}tdc) in the presence of Zn(II) and Cd(II) salts in H{sub 2}O produced three new metalorganic frameworks, namely, [Zn(-tdc)(H{sub 2}O)(-dib)]{sub n} (1), [Cd(-tdc)(H{sub 2}O)(-dib)]{sub n} (2), and ([Cd{sub 2}({sub 3}-tdc){sub 2}(-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 metalorganic frameworks. Isomorphous complexes 1 and 2 reveal polycatenated 2D+2D?3D framework based on an undulated (4,4)-sql layer. Complex 3 exhibits a new 4-fold interpenetrating 3D framework with the point symbol of 6{sup 6}. Molecular simulations were used to assess the potentials of the complexes for H{sub 2} storage application. These coordination polymers exhibit blue fluorescent emission bands in the solid state at room temperature. Display Omitted - Highlights: Complexes 1 and 2 display polycatenated 2D+2D?3D framework. Complex 3 exhibits a new 4-fold interpenetrating 3D framework. Complex 1 adsorbs the highest amount of H{sub 2} at 100 bar and 298 K. Complexes display blue fluorescent emission bands.

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

2014-02-15T23:59:59.000Z

320

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

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321

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

E-Print Network [OSTI]

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

De Micheli, Giovanni

322

Propagation in 3D of microwaves through density perturbations  

E-Print Network [OSTI]

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

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

2013-01-01T23:59:59.000Z

323

Advanced 3D Sensing and Visualization System for Unattended Monitoring  

SciTech Connect (OSTI)

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

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

1999-01-01T23:59:59.000Z

324

On the possibility of designing a high-resolution heterodyne spectrometer for near-IR range on the basis of a tunable diode laser  

SciTech Connect (OSTI)

The results of heterodyning of broadband radiation in the near-IR range are presented. A stabilised DFB laser was used as a local oscillator, while the role of a broadband radiation source was played by another DFB laser, excited by the pump current below its threshold value. A fibre-optical Y-coupler based on the single-mode silica fibre served as a diplexer. The radiation mixed in the singlemode fibre was incident on the photodetector, the role of which was played by a p - i - n photodiode. The signal from the photodiode was amplified by the preamplifier with the feedback resistance 240 k{Omega} and the bandwidth {approx}1 MHz and then digitised using a 16-digit ADC. The frequency scanning was implemented via the variation of the local oscillator frequency. The developed registration system provides the sensitivity {approx}1.4 % of the shot noise value at the acquisition time {approx}40 min.

Klimchuk, A Yu; Nadezhdinskii, Aleksandr I; Ponurovskii, Ya Ya; Shapovalov, Yu P; Rodin, A V

2012-03-31T23:59:59.000Z

325

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

E-Print Network [OSTI]

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

Schindler, Konrad

326

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

Science Journals Connector (OSTI)

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

Kostas Siozios; Vasilis F. Pavlidis; Dimitrios Soudris

2012-03-01T23:59:59.000Z

327

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

E-Print Network [OSTI]

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

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

2014-01-01T23:59:59.000Z

328

A heightened radiosensitivity of stromal fibroblasts in 3D matrix  

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

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

329

Virtual Frog Dissection: Interactive 3D Graphics Via the Web  

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

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

330

3D Visualization of Water Transport in Ferns  

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

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

331

A 3-D Link between Antibiotic Resistance and Brain Disease  

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

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

332

3D gravity and non-linear cosmology  

E-Print Network [OSTI]

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

F. P. Devecchi; M. L. Froehlich

2005-10-11T23:59:59.000Z

333

Building Energy Software Tools Directory: Look3D  

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

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

334

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

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

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

335

Press release embargoed until 6.00am Thursday 22 August 2013 Find a 3D fossil the hunt is on!  

E-Print Network [OSTI]

- the 3D printed versions are created by laser scanners that scan the fossil surface and measureD printed fossil amongst the collections at The Sedgwick Museum of Earth Sciences. It will be tricky competition, running until Thursday 12 September 2013, invites participants to find a hidden (but labelled!) 3

Cambridge, University of

336

3D Magnetotelluric characterization of the COSO GeothermalField  

SciTech Connect (OSTI)

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

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

2005-01-01T23:59:59.000Z

337

RELAP5-3D Code Validation for RBMK Phenomena  

SciTech Connect (OSTI)

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

Fisher, James Ebberly

1999-09-01T23:59:59.000Z

338

RELAP5-3D code validation for RBMK phenomena  

SciTech Connect (OSTI)

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

Fisher, J.E.

1999-09-01T23:59:59.000Z

339

3D Flat Holography: Entropy and Logarithmic Corrections  

E-Print Network [OSTI]

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

Arjun Bagchi; Rudranil Basu

2013-12-19T23:59:59.000Z

340

Modelling Gaia CCD pixels with Silvaco 3D engineering software  

E-Print Network [OSTI]

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

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

2010-01-01T23:59:59.000Z

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


341

Evolving spherical boson stars on a 3D cartesian grid  

E-Print Network [OSTI]

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

F. Siddhartha Guzman

2004-07-14T23:59:59.000Z

342

STELLOPT Modeling of the 3D Diagnostic Response in ITER  

SciTech Connect (OSTI)

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

Lazerson, Samuel A

2013-05-07T23:59:59.000Z

343

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

E-Print Network [OSTI]

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

Evans, Paul

344

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

E-Print Network [OSTI]

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

Montiel, Daniel

2012-01-01T23:59:59.000Z

345

3D Human Motion Tracking with a Coordinated Mixture ofFactor Analyzers  

E-Print Network [OSTI]

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

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

2010-01-01T23:59:59.000Z

346

A 3D Model for Ion Beam Formation and Transport Simulation  

E-Print Network [OSTI]

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

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

2006-01-01T23:59:59.000Z

347

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

E-Print Network [OSTI]

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

2011-01-01T23:59:59.000Z

348

3D culture models of normal and malignant breast epithelial cells  

E-Print Network [OSTI]

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

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

2006-01-01T23:59:59.000Z

349

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

E-Print Network [OSTI]

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

Wortsman, Ximena; Jemec, Gregor

2013-01-01T23:59:59.000Z

350

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

E-Print Network [OSTI]

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

2007-01-01T23:59:59.000Z

351

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

E-Print Network [OSTI]

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

Glover, Jared Marshall

2014-01-01T23:59:59.000Z

352

Wire Congestion And Thermal Aware 3D Global Placement  

E-Print Network [OSTI]

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

Lim, Sung Kyu

353

A 3D numerical model for Kepler's supernova remnant  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

354

3D model-based tracking for UAV indoor localisation  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

355

TCAUP FabLab 3D PRINTING ORDER FORM  

E-Print Network [OSTI]

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

Kamat, Vineet R.

356

Extra Dimensions: 3D and Time in PDF Documentation  

SciTech Connect (OSTI)

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

Graf, Norman A.; /SLAC

2011-11-10T23:59:59.000Z

357

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

E-Print Network [OSTI]

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

New Mexico, University of

358

Oct 8, 2004 Segmentation of 3D Meshes  

E-Print Network [OSTI]

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

Toronto, University of

359

Photo tourism: exploring photo collections in 3D  

Science Journals Connector (OSTI)

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

Noah Snavely; Steven M. Seitz; Richard Szeliski

2006-07-01T23:59:59.000Z

360

Coming to grips: 3D printing for accessibility  

Science Journals Connector (OSTI)

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

Erin Buehler, Amy Hurst, Megan Hofmann

2014-10-01T23:59:59.000Z

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


361

3D object recognition, localization and treatment of rumex  

E-Print Network [OSTI]

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

362

8, 42674308, 2008 3-D retrieval of cloud  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

363

Computation of optimized arrays for 3-D electrical imaging surveys  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

364

A data-mapping approach to 3-D wavefield redatuming  

Science Journals Connector (OSTI)

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

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

2008-02-01T23:59:59.000Z

365

Considerations for Targets in 3D Pointing Experiments  

E-Print Network [OSTI]

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

Stürzlinger, Wolfgang

366

Shape Reconstruction of 3D Bilaterally Symmetric Surfaces  

Science Journals Connector (OSTI)

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

Ilan Shimshoni; Yael Moses; Michael Lindenbaum

2000-09-01T23:59:59.000Z

367

Studies of the 3D surface roughness height  

SciTech Connect (OSTI)

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

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

2013-12-16T23:59:59.000Z

368

Liver vasculature refinement with multiple 3D structuring element shapes  

Science Journals Connector (OSTI)

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

Do-Yeon Kim

2014-08-01T23:59:59.000Z

369

Electromagnetic Waves Propagation in 3D Plasma Configurations  

E-Print Network [OSTI]

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

370

3D Tomography from Few Projections in Experimental Fluid Dynamics  

E-Print Network [OSTI]

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

Schnörr, Christoph

371

Propagation Beam Consideration for 3D THz Computed Tomography  

E-Print Network [OSTI]

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

Boyer, Edmond

372

Microfluidics-based laser cell-micropatterning system  

Science Journals Connector (OSTI)

The ability to place individual cells into an engineered microenvironment in a cell-culture model is critical for the study of in vivo relevant cellcell and cellextracellular matrix interactions. Microfluidics provides a high-throughput modality to inject various cell types into a microenvironment. Laser guided systems provide the high spatial and temporal resolution necessary for single-cell micropatterning. Combining these two techniques, the authors designed, constructed, tested and evaluated (1) a novel removable microfluidics-based cell-delivery biochip and (2) a combined system that uses the novel biochip coupled with a laser guided cell-micropatterning system to place individual cells into both two-dimensional (2D) and three-dimensional (3D) arrays. Cell-suspensions of chick forebrain neurons and glial cells were loaded into their respective inlet reservoirs and traversed the microfluidic channels until reaching the outlet ports. Individual cells were trapped and guided from the outlet of a microfluidic channel to a target site on the cell-culture substrate. At the target site, 2D and 3D pattern arrays were constructed with micron-level accuracy. Single-cell manipulation was accomplished at a rate of 150 ?m s?1 in the radial plane and 50 ?m s?1 in the axial direction of the laser beam. Results demonstrated that a single-cell can typically be patterned in 2030 s, and that highly accurate and reproducible cellular arrays and systems can be achieved through coupling the microfluidics-based cell-delivery biochip with the laser guided system.

Nick Erdman; Lucas Schmidt; Wan Qin; Xiaoqi Yang; Yongliang Lin; Mauris N DeSilva; Bruce Z Gao

2014-01-01T23:59:59.000Z

373

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

E-Print Network [OSTI]

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

Sukop, Mike

374

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

Science Journals Connector (OSTI)

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

Hirpa G. Lemu; Safet Kurtovic

2012-01-01T23:59:59.000Z

375

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

E-Print Network [OSTI]

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

Toronto, University of

376

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

E-Print Network [OSTI]

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

North Carolina at Chapel Hill, University of

377

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

E-Print Network [OSTI]

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

Bodla, Muhammad Raheel

2014-01-01T23:59:59.000Z

378

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

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

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

379

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

Office of Scientific and Technical Information (OSTI)

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

380

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

E-Print Network [OSTI]

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

Zettlemoyer, Luke

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


381

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

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

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

382

Improved Performance of Laser-Ultrasonic F-SAFT Imaging  

Science Journals Connector (OSTI)

The spatial resolution of laser-ultrasonics depends upon the spot sizes of the generation and detection lasers and may be inadequate for detecting small and buried flaws. The use of a broad laser spot at the surf...

D. Lvesque; A. Blouin; C. Nron; M. Choquet

1999-01-01T23:59:59.000Z

383

The simulation of 3D microcalcification clusters in 2D digital mammography and breast tomosynthesis  

SciTech Connect (OSTI)

Purpose: This work proposes a new method of building 3D models of microcalcification clusters and describes the validation of their realistic appearance when simulated into 2D digital mammograms and into breast tomosynthesis images. Methods: A micro-CT unit was used to scan 23 breast biopsy specimens of microcalcification clusters with malignant and benign characteristics and their 3D reconstructed datasets were segmented to obtain 3D models of microcalcification clusters. These models were then adjusted for the x-ray spectrum used and for the system resolution and simulated into 2D projection images to obtain mammograms after image processing and into tomographic sequences of projection images, which were then reconstructed to form 3D tomosynthesis datasets. Six radiologists were asked to distinguish between 40 real and 40 simulated clusters of microcalcifications in two separate studies on 2D mammography and tomosynthesis datasets. Receiver operating characteristic (ROC) analysis was used to test the ability of each observer to distinguish between simulated and real microcalcification clusters. The kappa statistic was applied to assess how often the individual simulated and real microcalcification clusters had received similar scores (''agreement'') on their realistic appearance in both modalities. This analysis was performed for all readers and for the real and the simulated group of microcalcification clusters separately. ''Poor'' agreement would reflect radiologists' confusion between simulated and real clusters, i.e., lesions not systematically evaluated in both modalities as either simulated or real, and would therefore be interpreted as a success of the present models. Results: The area under the ROC curve, averaged over the observers, was 0.55 (95% confidence interval [0.44, 0.66]) for the 2D study, and 0.46 (95% confidence interval [0.29, 0.64]) for the tomosynthesis study, indicating no statistically significant difference between real and simulated lesions (p > 0.05). Agreement between allocated lesion scores for 2D mammography and those for the tomosynthesis series was poor. Conclusions: The realistic appearance of the 3D models of microcalcification clusters, whether malignant or benign clusters, was confirmed for 2D digital mammography images and the breast tomosynthesis datasets; this database of clusters is suitable for use in future observer performance studies related to the detectability of microcalcification clusters. Such studies include comparing 2D digital mammography to breast tomosynthesis and comparing different reconstruction algorithms.

Shaheen, Eman; Van Ongeval, Chantal; Zanca, Federica; Cockmartin, Lesley; Marshall, Nicholas; Jacobs, Jurgen; Young, Kenneth C.; Dance, David R.; Bosmans, Hilde [Department of Radiology, University Hospitals Leuven, Herestraat 49, 3000 Leuven (Belgium); National Coordinating Centre for the Physics of Mammography, Royal Surrey County Hospital, Guildford, GU2 7XX (United Kingdom); Department of Radiology, University Hospitals Leuven, Herestraat 49, 3000 Leuven (Belgium)

2011-12-15T23:59:59.000Z

384

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

SciTech Connect (OSTI)

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

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

2008-06-24T23:59:59.000Z

385

NORTH HILL CREEK 3-D SEISMIC EXPLORATION PROJECT  

SciTech Connect (OSTI)

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

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

2004-05-06T23:59:59.000Z

386

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

E-Print Network [OSTI]

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

2010-01-01T23:59:59.000Z

387

Laser Ignition  

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

Laser Ignition Laser Ignition A first excitation laser or other excitation light source is used in tandem with an ignitor laser to provide a compact, durable, engine deployable...

388

3D Mt Resistivity Imaging For Geothermal Resource Assessment And  

Open Energy Info (EERE)

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

389

3D MAGNETOTELLURIC CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD | Open  

Open Energy Info (EERE)

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

390

Bootstrapping Mixed Correlators in the 3D Ising Model  

E-Print Network [OSTI]

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

Kos, Filip; Simmons-Duffin, David

2014-01-01T23:59:59.000Z

391

2D-3D transition of gold cluster anions resolved  

Science Journals Connector (OSTI)

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

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

2008-05-19T23:59:59.000Z

392

Widespread 3D seismic survey covers mature field in Gabon  

SciTech Connect (OSTI)

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

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

1993-12-06T23:59:59.000Z

393

AES Encryption and Decryption Using Direct3D 10 API  

E-Print Network [OSTI]

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

Chiuta, Adrian Marius

2012-01-01T23:59:59.000Z

394

Multicomponent 3-D characterization of a coalbed methane reservoir  

SciTech Connect (OSTI)

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

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

1996-03-01T23:59:59.000Z

395

Sculplexity: Sculptures of Complexity using 3D printing  

E-Print Network [OSTI]

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

Reiss, D S; Evans, T S

2014-01-01T23:59:59.000Z

396

Sculplexity: Sculptures of Complexity using 3D printing  

Science Journals Connector (OSTI)

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

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

2013-01-01T23:59:59.000Z

397

Beam Optics Analysis - An Advanced 3D Trajectory Code  

SciTech Connect (OSTI)

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

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

2006-01-03T23:59:59.000Z

398

Electric field in 3D gravity with torsion  

E-Print Network [OSTI]

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

M. Blagojevi?; B. Cvetkovi?

2008-09-01T23:59:59.000Z

399

3D acoustic imaging applied to the Baikal Neutrino Telescope  

E-Print Network [OSTI]

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

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

2008-11-07T23:59:59.000Z

400

Single molecule microscopy in 3D cell cultures and tissues  

Science Journals Connector (OSTI)

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

Florian M. Lauer; Elke Kaemmerer; Tobias Meckel

2014-01-01T23:59:59.000Z

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


401

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

Science Journals Connector (OSTI)

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

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

2014-06-01T23:59:59.000Z

402

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

E-Print Network [OSTI]

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

Abu-Mostafa, Yaser S.

403

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

E-Print Network [OSTI]

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

Chang, Shih-Fu

404

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

405

3D Graph Visualization with the Oculus Rift Virtual Graph Reality  

E-Print Network [OSTI]

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

Wismath, Stephen

406

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

E-Print Network [OSTI]

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

Zhu, Song Chun

407

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

E-Print Network [OSTI]

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

Tachi, Susumu

408

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

E-Print Network [OSTI]

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

409

ARGon{sup 3}: ''3D appearance robot-based gonioreflectometer'' at PTB  

SciTech Connect (OSTI)

At the Physikalisch-Technische Bundesanstalt, the National Metrology Institute of Germany, a new facility for measuring visual appearance-related quantities has been built up. The acronym ARGon{sup 3} stands for ''3D appearance robot-based gonioreflectometer''. Compared to standard gonioreflectometers, there are two main new features within this setup. First, a photometric luminance camera with a spatial resolution of 28 {mu}m on the device under test (DUT) enables spatially high-resolved measurements of luminance and color coordinates. Second, a line-scan CCD-camera mounted to a spectrometer provides measurements of the radiance factor, respectively the bidirectional reflectance distribution function, in full V({lambda})-range (360 nm-830 nm) with arbitrary angles of irradiation and detection relative to the surface normal, on a time scale of about 2 min. First goniometric measurements of diffuse reflection within 3D-space above the DUT with subsequent colorimetric representation of the obtained data of special effect pigments based on the interference effect are presented.

Hoepe, A.; Atamas, T.; Huenerhoff, D.; Teichert, S.; Hauer, K.-O. [Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig (Germany)

2012-04-15T23:59:59.000Z

410

Spectral synthesis of stellar populations in the 3D era: The CALIFA experience  

E-Print Network [OSTI]

Methods to recover the fossil record of galaxy evolution encoded in their optical spectra have been instrumental in processing the avalanche of data from mega-surveys along the last decade, effectively transforming observed spectra onto a long and rich list of physical properties: from stellar masses and mean ages to full star formation histories. This promoted progress in our understanding of galaxies as a whole. Yet, the lack of spatial resolution introduces undesirable aperture effects, and hampers advances on the internal physics of galaxies. This is now changing with 3D surveys. The mapping of stellar populations in data-cubes allows us to figure what comes from where, unscrambling information previously available only in integrated form. This contribution uses our starlight-based analysis of 300 CALIFA galaxies to illustrate the power of spectral synthesis applied to data-cubes. The selected results highlighted here include: (a) The evolution of the mass-metallicity and mass-density-metallicity relation...

Fernandes, R Cid; Delgado, R M Gonzlez; Asari, N Vale; Garca-Benito, R; Prez, E; de Amorim, A L; Cortijo-Ferrero, C; Fernndez, R Lpez; Snchez, S F

2014-01-01T23:59:59.000Z

411

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

E-Print Network [OSTI]

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

Loukitcheva, Maria; Carlsson, Mats; White, Stephen

2015-01-01T23:59:59.000Z

412

High resolution data acquisition  

DOE Patents [OSTI]

A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock (38) pulse train (37) and analog circuitry (44) for generating a triangular wave (46) synchronously with the pulse train (37). The triangular wave (46) has an amplitude and slope functionally related to the time elapsed during each clock pulse in the train. A converter (18, 32) forms a first digital value of the amplitude and slope of the triangle wave at the start of the event interval and a second digital value of the amplitude and slope of the triangle wave at the end of the event interval. A counter (26) counts the clock pulse train (37) during the interval to form a gross event interval time. A computer (52) then combines the gross event interval time and the first and second digital values to output a high resolution value for the event interval.

Thornton, Glenn W. (Los Alamos, NM); Fuller, Kenneth R. (Los Alamos, NM)

1993-01-01T23:59:59.000Z

413

High resolution data acquisition  

DOE Patents [OSTI]

A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock, pulse train, and analog circuitry for generating a triangular wave synchronously with the pulse train (as seen in diagram on patent). The triangular wave has an amplitude and slope functionally related to the time elapsed during each clock pulse in the train. A converter forms a first digital value of the amplitude and slope of the triangle wave at the start of the event interval and a second digital value of the amplitude and slope of the triangle wave at the end of the event interval. A counter counts the clock pulse train during the interval to form a gross event interval time. A computer then combines the gross event interval time and the first and second digital values to output a high resolution value for the event interval.

Thornton, G.W.; Fuller, K.R.

1993-04-06T23:59:59.000Z

414

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2005-03-31T23:59:59.000Z

415

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS.  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2003-01-01T23:59:59.000Z

416

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2005-08-21T23:59:59.000Z

417

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2004-05-31T23:59:59.000Z

418

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2004-09-30T23:59:59.000Z

419

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2002-12-01T23:59:59.000Z

420

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2004-05-01T23:59:59.000Z

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421

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2004-06-30T23:59:59.000Z

422

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2003-09-01T23:59:59.000Z

423

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2003-07-01T23:59:59.000Z

424

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2004-12-31T23:59:59.000Z

425

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P Paulsson

2006-05-05T23:59:59.000Z

426

Development of a 400 Level 3C Clamped Downhole Seismic Receiver Array for 3D Borehole Seismic Imaging of Gas Reservoirs  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently hampered by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. Massive 3D VSP{reg_sign} and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver arrays will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N. P. Paulsson

2005-09-30T23:59:59.000Z

427

DEVELOPMENT OF A 400 LEVEL 3C CLAMPED DOWNHOLE SEISMIC RECEIVER ARRAY FOR 3D BOREHOLE SEISMIC IMAGING OF GAS RESERVOIRS  

SciTech Connect (OSTI)

Borehole seismology is the highest resolution geophysical imaging technique available today to the oil and gas industry for characterization and monitoring of oil and gas reservoirs. However, the industry's ability to economically do high resolution 3D imaging of deep and complex gas reservoirs using borehole seismology is currently frustrated by the lack of the acquisition technology necessary to record the large volumes of the high frequency, high signal-to-noise-ratio borehole seismic data needed to do 3D imaging. This project takes direct aim at this shortcoming by developing a 400 level 3C clamped downhole seismic receiver array, and accompanying software, for borehole seismic 3D imaging. This large borehole seismic array will remove the technical acquisition barrier for recording the necessary volumes of data to do high resolution 3D VSP or 3D cross well seismic imaging. 3D VSP and long range Cross-Well Seismology (CWS) are two of the borehole seismic techniques that will allow the Gas industry to take the next step in their quest for higher resolution images of the gas reservoirs for the purpose of improving the recovery of the natural gas resources. Today only a fraction of the original Oil or Gas in place is produced when reservoirs are considered depleted. This is primarily due to our lack of understanding of the detailed compartmentalization of the oil and gas reservoirs. The 400 level 3C borehole seismic receiver array will allow for the economic use of 3D borehole seismic imaging for reservoir characterization and monitoring by allowing the economic recording of the required large data volumes that have a sufficiently dense spatial sampling. By using 3C surface seismic or 3C borehole seismic sources the 400 level receiver array will furthermore allow 3D reservoir imaging using 9C data. The 9C borehole seismic data will provide P, SH and SV information for imaging of the complex deep gas reservoirs and allow quantitative prediction of the rock and the fluid types. The data quality and the data volumes from a 400 level 3C array will allow us to develop the data processing technology necessary for high resolution reservoir imaging.

Bjorn N.P. Paulsson

2003-12-01T23:59:59.000Z

428

A prototype fan-beam optical CT scanner for 3D dosimetry  

SciTech Connect (OSTI)

Purpose: The objective of this work is to introduce a prototype fan-beam optical computed tomography scanner for three-dimensional (3D) radiation dosimetry. Methods: Two techniques of fan-beam creation were evaluated: a helium-neon laser (HeNe, {lambda} = 543 nm) with line-generating lens, and a laser diode module (LDM, {lambda} = 635 nm) with line-creating head module. Two physical collimator designs were assessed: a single-slot collimator and a multihole collimator. Optimal collimator depth was determined by observing the signal of a single photodiode with varying collimator depths. A method of extending the dynamic range of the system is presented. Two sample types were used for evaluations: nondosimetric absorbent solutions and irradiated polymer gel dosimeters, each housed in 1 liter cylindrical plastic flasks. Imaging protocol investigations were performed to address ring artefacts and image noise. Two image artefact removal techniques were performed in sinogram space. Collimator efficacy was evaluated by imaging highly opaque samples of scatter-based and absorption-based solutions. A noise-based flask registration technique was developed. Two protocols for gel manufacture were examined. Results: The LDM proved advantageous over the HeNe laser due to its reduced noise. Also, the LDM uses a wavelength more suitable for the PRESAGE{sup TM} dosimeter. Collimator depth of 1.5 cm was found to be an optimal balance between scatter rejection, signal strength, and manufacture ease. The multihole collimator is capable of maintaining accurate scatter-rejection to high levels of opacity with scatter-based solutions (T < 0.015%). Imaging protocol investigations support the need for preirradiation and postirradiation scanning to reduce reflection-based ring artefacts and to accommodate flask imperfections and gel inhomogeneities. Artefact removal techniques in sinogram space eliminate streaking artefacts and reduce ring artefacts of up to {approx}40% in magnitude. The flask registration technique was shown to achieve submillimetre and subdegree placement accuracy. Dosimetry protocol investigations emphasize the need to allow gel dosimeters to cool gradually and to be scanned while at room temperature. Preliminary tests show that considerable noise reduction can be achieved with sinogram filtering and by binning image pixels into more clinically relevant grid sizes. Conclusions: This paper describes a new optical CT scanner for 3D radiation dosimetry. Tests demonstrate that it is capable of imaging both absorption-based and scatter-based samples of high opacities. Imaging protocol and gel dosimeter manufacture techniques have been adapted to produce optimal reconstruction results. These optimal results will require suitable filtering and binning techniques for noise reduction purposes.

Campbell, Warren G.; Rudko, D. A.; Braam, Nicolas A.; Jirasek, Andrew [University of Victoria, Victoria, British Columbia V8P 5C2 (Canada); Wells, Derek M. [British Columbia Cancer Agency, Vancouver Island Centre, Victoria, British Columbia V8R 6V5 (Canada)

2013-06-15T23:59:59.000Z

429

A steerable UV laser system for the calibration of liquid argon time projection chambers  

E-Print Network [OSTI]

A number of liquid argon time projection chambers (LAr TPC's) are being build or are proposed for neutrino experiments on long- and short baseline beams. For these detectors a distortion in the drift field due to geometrical or physics reasons can affect the reconstruction of the events. Depending on the TPC geometry and electric drift field intensity this distortion could be of the same magnitude as the drift field itself. Recently, we presented a method to calibrate the drift field and correct for these possible distortions. While straight cosmic ray muon tracks could be used for calibration, multiple coulomb scattering and momentum uncertainties allow only a limited resolution. A UV laser instead can create straight ionization tracks in liquid argon, and allows one to map the drift field along different paths in the TPC inner volume. Here we present a UV laser feed-through design with a steerable UV mirror immersed in liquid argon that can point the laser beam at many locations through the TPC. The straight ionization paths are sensitive to drift field distortions, a fit of these distortion to the linear optical path allows to extract the drift field, by using these laser tracks along the whole TPC volume one can obtain a 3D drift field map. The UV laser feed-through assembly is a prototype of the system that will be used for the MicroBooNE experiment at the Fermi National Accelerator Laboratory (FNAL).

A. Ereditato; I. Kreslo; M. Lthi; C. Rudolf von Rohr; M. Schenk; T. Strauss; M. Weber; M. Zeller

2014-10-04T23:59:59.000Z

430

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

E-Print Network [OSTI]

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

Abu-Mostafa, Yaser S.

431

3-D HYDRODYNAMIC MODELING IN A GEOSPATIAL FRAMEWORK  

SciTech Connect (OSTI)

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

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

2006-08-24T23:59:59.000Z

432

Nuclear Dynamics with the Sky3D code  

E-Print Network [OSTI]

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

Stevenson, P D

2014-01-01T23:59:59.000Z

433

3d mirror symmetry as a canonical transformation  

E-Print Network [OSTI]

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

Drukker, Nadav

2015-01-01T23:59:59.000Z

434

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

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

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

435

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

Science Journals Connector (OSTI)

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

2014-01-01T23:59:59.000Z

436

3-D physical modeling of a complex salt canopy  

SciTech Connect (OSTI)

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

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

1996-12-31T23:59:59.000Z

437

Desktop 3D printing of controlled release pharmaceutical bilayer tablets  

Science Journals Connector (OSTI)

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

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

2014-01-01T23:59:59.000Z

438

AUTOMATED, HIGHLY ACCURATE VERIFICATION OF RELAP5-3D  

SciTech Connect (OSTI)

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

George L Mesina; David Aumiller; Francis Buschman

2014-07-01T23:59:59.000Z

439

Realizacao domestica e escolar de foto e video 3D  

E-Print Network [OSTI]

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

Jose J. Lunazzi

2012-12-19T23:59:59.000Z

440

ASIC for High Rate 3D Position Sensitive Detectors  

SciTech Connect (OSTI)

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

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

2010-06-16T23:59:59.000Z

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


441

KAM theory and the 3D Euler equation  

E-Print Network [OSTI]

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

Boris Khesin; Sergei Kuksin; Daniel Peralta-Salas

2014-01-21T23:59:59.000Z

442

Dual FIB-SEM 3D imaging and lattice boltzmann modeling of porosimetry and multiphase flow in chalk.  

SciTech Connect (OSTI)

Mercury intrusion porosimetry (MIP) is an often-applied technique for determining pore throat distributions and seal analysis of fine-grained rocks. Due to closure effects, potential pore collapse, and complex pore network topologies, MIP data interpretation can be ambiguous, and often biased toward smaller pores in the distribution. We apply 3D imaging techniques and lattice-Boltzmann modeling in interpreting MIP data for samples of the Cretaceous Selma Group Chalk. In the Mississippi Interior Salt Basin, the Selma Chalk is the apparent seal for oil and gas fields in the underlying Eutaw Fm., and, where unfractured, the Selma Chalk is one of the regional-scale seals identified by the Southeast Regional Carbon Sequestration Partnership for CO2 injection sites. Dual focused ion - scanning electron beam and laser scanning confocal microscopy methods are used for 3D imaging of nanometer-to-micron scale microcrack and pore distributions in the Selma Chalk. A combination of image analysis software is used to obtain geometric pore body and throat distributions and other topological properties, which are compared to MIP results. 3D data sets of pore-microfracture networks are used in Lattice Boltzmann simulations of drainage (wetting fluid displaced by non-wetting fluid via the Shan-Chen algorithm), which in turn are used to model MIP procedures. Results are used in interpreting MIP results, understanding microfracture-matrix interaction during multiphase flow, and seal analysis for underground CO2 storage.

Rinehart, Alex; Petrusak, Robin (Advanced Resources International, Inc., Arlington, VA); Heath, Jason E.; Dewers, Thomas A.; Yoon, Hongkyu

2010-12-01T23:59:59.000Z

443

Combined 3D PET and Optical Projection Tomography Techniques for Plant Root Phenotyping  

E-Print Network [OSTI]

New imaging techniques are in great demand for investigating underground plant roots systems which play an important role in crop production. Compared with other non-destructive imaging modalities, PET can image plant roots in natural soil and produce dynamic 3D functional images which reveal the temporal dynamics of plant-environment interactions. In this study, we combined PET with optical projection tomography (OPT) to evaluate its potential for plant root phenotyping. We used a dedicated high resolution plant PET imager that has a 14 cm transaxial and 10 cm axial field of views, and multi-bed imaging capability. The image resolution is around 1.25 mm using ML-EM reconstruction algorithm. B73 inbred maize seeds were germinated and then grown in a sealed jar with transparent gel-based media. PET scanning started on the day when the first green leaf appeared, and was carried out once a day for 5 days. Each morning, around 10 mCi of 11CO2 was administrated into a custom built plant labeling chamber. After 10 ...

Wang, Qiang; Mathews, Aswin J; Li, Ke; Topp, Christopher; O'Sullivan, Joseph A; Tai, Yuan-Chuan

2015-01-01T23:59:59.000Z

444

Pulsetrain-burst mode, ultrafast-laser interactions with 3D viable cell cultures as a  

E-Print Network [OSTI]

. Grova, C. J. Liu, J. Wang, D. Palanker, A. J. Connolly, M. T. Longaker, C. H. Contag, and D. C. Wan

Marjoribanks, Robin S.

445

Pulsetrain-burst Mode, Ultrafast-Laser Interactions with 3D Viable Cell Cultures as a  

E-Print Network [OSTI]

17(3), 038002 (2012) 6. D. D. Lo, M. A. Mackanos, M. T. Chung, J. S. Hyun, D. T. Montoro, M. Grova, C

Marjoribanks, Robin S.

446

Rapid 3-D laser microprinting of bioscaffolds and patterning of proteins  

E-Print Network [OSTI]

Tissue engineers have been developing biological substitutes to regenerate or replace damaged tissue. Tissues contain both exquisite microarchitectures and chemical cues to support cell migration, proliferation and ...

Liu, Man-Chi, S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

447

Ultra-rapid 2-D and 3-D laser microprinting of proteins  

E-Print Network [OSTI]

When viewed under the microscope, biological tissues reveal an exquisite microarchitecture. These complex patterns arise during development, as cells interact with a multitude of chemical and mechanical cues in the surrounding ...

Scott, Mark Andrew, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

448

3-D laser doppler velocimeter measurements of eccentric annular and labyrinth seals  

E-Print Network [OSTI]

as would be expected. Instead the maximum a)axial velocities are seen on the pressure side of the seals at the inlet but migrates to the suction side of the seal at the exit. The magnitude of this migration is dependent upon the seal eccentricity...

Das, Purandar Gururaj

1993-01-01T23:59:59.000Z

449

8 - Innovations in laser cladding and direct laser metal deposition  

Science Journals Connector (OSTI)

Abstract Laser-based material deposition to form coatings or 3D structures has gained substantial interest in industry for applications in aerospace, energy conversion, the oil and gas industry, medicine and mechanical engineering. Using light as a tool offers major advantages such as high precision as well as high productivity, utilizing basically the same process principle. However, systems hardware such as nozzle design and additional energy sources must be adjusted to the specific process needs. Moreover, process control and an in-depth understanding of the key processing variables, the resulting material microstructure of the claddings and their resulting properties are essential for successful 2D and 3D material deposition.

C. Leyens; E. Beyer

2015-01-01T23:59:59.000Z

450

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

E-Print Network [OSTI]

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

DASH, ASSMITRA

2013-01-01T23:59:59.000Z

451

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

E-Print Network [OSTI]

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

Dupont, Pierre

452

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

E-Print Network [OSTI]

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

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

2014-01-01T23:59:59.000Z

453

Harnessing AutoCAD Civil 3D 2011, 1st edition  

Science Journals Connector (OSTI)

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

Phillip J. Zimmerman

2010-10-01T23:59:59.000Z

454

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

Science Journals Connector (OSTI)

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

Kaida Xiao; Faraedon Zardawi

2014-02-01T23:59:59.000Z

455

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

E-Print Network [OSTI]

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

Sukhatme, Gaurav S.

456

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

Science Journals Connector (OSTI)

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

Kim, Seung-Cheol; Kim, Eun-Soo

457

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

Science Journals Connector (OSTI)

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

Dongkyun Kim; Joon-Min Gil

2014-12-01T23:59:59.000Z

458

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

E-Print Network [OSTI]

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

Sarcia, Sam Rhea, 1982-

2004-01-01T23:59:59.000Z

459

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

Science Journals Connector (OSTI)

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

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

2012-01-01T23:59:59.000Z

460

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

SciTech Connect (OSTI)

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

Walter L Weaver III

2005-03-01T23:59:59.000Z

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


461

Impact of 3D printing on global supply chains by 2020  

E-Print Network [OSTI]

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

Bhasin, Varun

2014-01-01T23:59:59.000Z

462

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

E-Print Network [OSTI]

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

Kilian, Kristopher A.

463

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

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

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

464

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

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

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

465

Efficient 3D building model generation from 2D floor plans  

E-Print Network [OSTI]

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

Kashlev, Dmitry

2008-01-01T23:59:59.000Z

466

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

E-Print Network [OSTI]

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

Horstmeyer, Roarke (Roarke William)

2011-01-01T23:59:59.000Z

467

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

Open Energy Info (EERE)

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

468

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

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

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

469

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

Science Journals Connector (OSTI)

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

Navarro, Hctor; Martnez-Cuenca, Ral; Molina-Martn, Ainhoa; Martnez-Corral, Manuel; Saavedra, Genaro; Javidi, Bahram

2010-01-01T23:59:59.000Z

470

3D Magnetotelluric Characterization Of The Geothermal Anomaly In The  

Open Energy Info (EERE)

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

471

Automating the determination of 3D protein structure  

SciTech Connect (OSTI)

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

Rayl, K.D.

1993-12-31T23:59:59.000Z

472

Exploration 3-D Seismic Field Test/Native Tribes Initiative  

SciTech Connect (OSTI)

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

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

1999-04-27T23:59:59.000Z

473

3D deformation field throughout the interior of materials.  

SciTech Connect (OSTI)

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

Jin, Huiqing; Lu, Wei-Yang

2013-09-01T23:59:59.000Z

474

3D Model of the San Emidio Geothermal Area  

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

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

James E. Faulds

475

3D Model of the San Emidio Geothermal Area  

SciTech Connect (OSTI)

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

James E. Faulds

2013-12-31T23:59:59.000Z

476

3D Model of the Neal Hot Springs Geothermal Area  

SciTech Connect (OSTI)

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

Faulds, James E.

2013-12-31T23:59:59.000Z

477

3D Model of the Neal Hot Springs Geothermal Area  

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

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

Faulds, James E.

478

3-D Seismic Methods For Geothermal Reservoir Exploration And  

Open Energy Info (EERE)

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

479

3D Magnetotelluic characterization of the Coso Geothermal Field | Open  

Open Energy Info (EERE)

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

480

Large Scale Laser Two-Photon Polymerization Structuring for Fabrication of Artificial Polymeric Scaffolds for Regenerative Medicine  

SciTech Connect (OSTI)

We present a femtosecond Laser Two-Photon Polymerization (LTPP) system of large scale three-dimensional structuring for applications in tissue engineering. The direct laser writing system enables fabrication of artificial polymeric scaffolds over a large area (up to cm in lateral size) with sub-micrometer resolution which could find practical applications in biomedicine and surgery. Yb:KGW femtosecond laser oscillator (Pharos, Light Conversion. Co. Ltd.) is used as an irradiation source (75 fs, 515 nm (frequency doubled), 80 MHz). The sample is mounted on wide range linear motor driven stages having 10 nm sample positioning resolution (XY--ALS130-100, Z--ALS130-50, Aerotech, Inc.). These stages guarantee an overall travelling range of 100 mm into X and Y directions and 50 mm in Z direction and support the linear scanning speed up to 300 mm/s. By moving the sample three-dimensionally the position of laser focus in the photopolymer is changed and one is able to write complex 3D (three-dimensional) structures. An illumination system and CMOS camera enables online process monitoring. Control of all equipment is automated via custom made computer software ''3D-Poli'' specially designed for LTPP applications. Structures can be imported from computer aided design STereoLihography (stl) files or programmed directly. It can be used for rapid LTPP structuring in various photopolymers (SZ2080, AKRE19, PEG-DA-258) which are known to be suitable for bio-applications. Microstructured scaffolds can be produced on different substrates like glass, plastic and metal. In this paper, we present microfabricated polymeric scaffolds over a large area and growing of adult rabbit myogenic stem cells on them. Obtained results show the polymeric scaffolds to be applicable for cell growth practice. It exhibit potential to use it for artificial pericardium in the experimental model in the future.

Malinauskas, M.; Purlys, V.; Zukauskas, A.; Rutkauskas, M.; Danilevicius, P.; Paipulas, D.; Bickauskaite, G.; Gadonas, R.; Piskarskas, A. [Vilnius University, Physics Faculty, Department of Quantum Electronics, Laser Research Center, Sauletekio ave. 10, LT-10223 Vilnius (Lithuania); Bukelskis, L.; Baltriukiene, D.; Bukelskiene, V. [Institute of Biochemistry, Vivarium, Mokslininkuo str. 12, LT-08662 Vilnius (Lithuania); Sirmenis, R. [Vilnius University Hospital Santariskiuo Klinikos, Santariskiuo g. 2, LT-08661 Vilnius (Lithuania); Gaidukeviciute, A. [Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, Vassilika Vouton, 711 10 Heraklion, Crete (Greece); Sirvydis, V. [Vilnius University, Faculty of Medicine, Heart Surgery Center, Santariskiuo 2, LT-08661, Vilnius (Lithuania)

2010-11-10T23:59:59.000Z

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


481

Schur-decomposition for 3D matrix equations and its application in solving radiative discrete ordinates equations discretized by Chebyshev collocation spectral method  

SciTech Connect (OSTI)

The Schur-decomposition for three-dimensional matrix equations is developed and used to directly solve the radiative discrete ordinates equations which are discretized by Chebyshev collocation spectral method. Three methods, say, the spectral methods based on 2D and 3D matrix equation solvers individually, and the standard discrete ordinates method, are presented. The numerical results show the good accuracy of spectral method based on direct solvers. The CPU time cost comparisons against the resolutions between these three methods are made using MATLAB and FORTRAN 95 computer languages separately. The results show that the CPU time cost of Chebyshev collocation spectral method with 3D Schur-decomposition solver is the least, and almost only one thirtieth to one fiftieth CPU time is needed when using the spectral method with 3D Schur-decomposition solver compared with the standard discrete ordinates method.

Li Benwen [Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, P.O. Box 314, Shenyang, Liaoning 110004 (China)], E-mail: heatli@hotmail.com; Tian Shuai; Sun Yasong; Hu, Zhang-Mao [Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, P.O. Box 314, Shenyang, Liaoning 110004 (China)

2010-02-20T23:59:59.000Z

482

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

483

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

Science Journals Connector (OSTI)

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

Vincent F. Scalfani; Thomas P. Vaid

2014-04-18T23:59:59.000Z

484

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

E-Print Network [OSTI]

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

Sapatnekar, Sachin

485

3D Printing Phosphonium Ionic Liquid Networks with Mask Projection Microstereolithography  

Science Journals Connector (OSTI)

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

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

2014-11-06T23:59:59.000Z

486

Time-of-Flight camera based 3D point cloud reconstruction of a car  

Science Journals Connector (OSTI)

Abstract Modern car wash systems are generally controlled by light barriers and power measurement sensors. These sensors are directly mounted on the movable parts of the system which result in a slow regulation, leading to non-optimal performance, e.g. in terms of energy, water and detergent consumption or regarding the quality of the result. This paper presents an alternative approach, based on online automatic acquisition of 3D vehicle models, thus allowing for an a priori optimization of the washing process in order to achieve a better overall performance of the car wash system. Technically, the approach uses merged and synchronized data acquired by a multiple Time-of-Flight (ToF) camera setup. The proposed processing concept handles the range data sets acquired online, and performs data preprocessing, registration and fusion, as well as geometry extraction. The realized system is based on Graphics Processing Units (GPUs) in order to achieve a sufficient temporal processing performance. Furthermore, details are given showing how to solve the main challenges related to point cloud data processing, especially due to low image resolution, the influences of specific environment conditions, e.g. variations in coating and material reflectivity. The data registration is twofold, on the one hand the multiple ToF images are registered using the pre-calibrated camera system (extrinsic parameters), whereas the inter-frame registration is performed using a point-to-plane based iterative closest point (ICP) on the other hand. Finally, the merged data is integrated in a GPU data structure to allow a fast and efficient 3D point cloud reconstruction.

Thomas Hoegg; Damien Lefloch; Andreas Kolb

2013-01-01T23:59:59.000Z

487

Measurement of 3D plasma response to external magnetic perturbations in the presence of a rotating external kink  

SciTech Connect (OSTI)

The detailed measurements of the 3D plasma response to applied external magnetic perturbations in the presence of a rotating external kink are presented, and compared with the predictions of a single-helicity linear model of kink mode dynamics. The modular control coils of the High Beta Tokamak-Extended Pulse (HBT-EP) device are used to apply resonant m/n = 3/1 magnetic perturbations to wall-stabilized tokamak plasmas with a pre-existing rotating 3/1 kink mode. The plasma response is measured in high-resolution with the extensive magnetic diagnostic set of the HBT-EP device. The spatial structures of both the naturally rotating kink mode and the externally driven response are independently measured and observed to be identical, while the temporal dynamics are consistent with the independent evolution and superposition of the two modes. This leads to the observation of a characteristic change in 3D field dynamics as a function of the applied field amplitude. This amplitude dependence is found to be different for poloidal and radial fields. The measured 3D response is compared to and shown to be consistent with the predictions of the linear single-helicity model in the high-dissipation regime, as reported previously [M. E. Mauel et al., Nucl. Fusion 45, 285 (2005)].

Shiraki, Daisuke; Angelini, Sarah M.; Byrne, Patrick J.; DeBono, Bryan A.; Hughes, Paul E.; Levesque, Jeffrey P.; Mauel, Michael E.; Navratil, Gerald A.; Peng, Qian; Rhodes, Dov J.; Stoafer, Christopher C. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)] [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States); Maurer, David A. [Physics Department, Auburn University, Auburn, Alabama 36849 (United States)] [Physics Department, Auburn University, Auburn, Alabama 36849 (United States); Rath, Nikolaus [Tri Alpha Energy, Rancho Santa Margarita, California 92688 (United States)] [Tri Alpha Energy, Rancho Santa Margarita, California 92688 (United States)

2013-10-15T23:59:59.000Z

488

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

E-Print Network [OSTI]

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

Igarashi, Takeo

2010-05-05T23:59:59.000Z

489

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

Science Journals Connector (OSTI)

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

Jong Kwan Lee; G. Allen Gary

2009-05-01T23:59:59.000Z

490

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

E-Print Network [OSTI]

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

Aksun, M. Irsadi

491

Department of Mechanical Engineering Spring 2013 3D Printed Medical Device  

E-Print Network [OSTI]

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

Demirel, Melik C.

492

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

E-Print Network [OSTI]

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

Fleming, Paul D. "Dan"

493

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

Science Journals Connector (OSTI)

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

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

2014-09-01T23:59:59.000Z

494