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1

Experimental Investigation of Material Flows Within FSWs Using 3D Tomography  

SciTech Connect

There exists significant prior work using tracers or pre-placed hardened markers within friction stir welding (FSWing) to experimentally explore material flow within the FSW process. Our experiments replaced markers with a thin sheet of copper foil placed between the 6061 aluminum lap and butt joints that were then welded. The absorption characteristics of x-rays for copper and aluminum are significantly different allowing for non-destructive evaluation (NDE) methods such as x-ray computed tomography (CT) to be used to demonstrate the material movement within the weldment on a much larger scale than previously shown. 3D CT reconstruction of the copper components of the weldment allows for a unique view into the final turbulent state of the welding process as process parameters are varied. The x-ray CT data of a section of the weld region was collected using a cone-beam x-ray imaging system developed at the INL. Six-hundred projections were collected over 360-degrees using a 160-kVp Bremsstrahlung x-ray generator (25-micrometer focal spot) and amorphoussilicon x-ray detector. The region of the object that was imaged was about 3cm tall and 1.5cm x 1cm in cross section, and was imaged at a magnification of about 3.6x. The data were reconstructed on a 0.5x0.5x0.5 mm3 voxel grid. After reconstruction, the aluminum and copper could be easily discriminated using a gray level threshold allowing visualization of the copper components. Fractal analysis of the tomographic reconstructed material topology is investigated as a means to quantify macro level material flow based on process parameters. The results of multi-pass FSWs show increased refinement of the copper trace material. Implications of these techniques for quantifying process flow are discussed.

Charles R. Tolle; Timothy A. White; Karen S. Miller; Denis E. Clark; Herschel B. Smartt

2008-06-01T23:59:59.000Z

2

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

E-Print Network (OSTI)

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

Ismagilov, Rustem F.

3

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

4

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

NLE Websites -- All DOE Office Websites (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...

5

3D deformation field throughout the interior of materials.  

SciTech Connect

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

6

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

7

Constitutive parameter identification of 3D printing material based on the virtual fields method  

Science Journals Connector (OSTI)

Abstract In recent years, 3D printing technology has grown rapidly, and also has shown the great potential to be utilized in different fields. The identification of the constitutive parameters of materials fabricated by 3D printing is very important for product designing and technique selection. In this paper, a constitutive parameter identification method for 3D printing materials combining the integrated deformation carriers with the virtual fields method (VFM) is presented. The experimental process consists of three steps: fabricating the specimen with integrated deformation carriers by 3D printing; measuring the deformation fields by a full-field optical method; identifying the constitutive parameters by VFM. In the first step, the design method of the integrated deformation carriers is described in detail. Serving as a practice of the above process, a bending specimen with integrated deformation carriers was manufactured by the stereolithography technique, and the orthotropic constitutive parameters of this specimen at different temperatures were identified. The successful experimental results verify the feasibility of the proposed method, and show its advantages on aspects of high efficiency and easy processing as well.

Xianglu Dai; Huimin Xie

2015-01-01T23:59:59.000Z

8

Synchrotron 3D microtomography of halite aggregates during experimental pressure solution creep and evolution of  

E-Print Network (OSTI)

1 Synchrotron 3D microtomography of halite aggregates during experimental pressure solution creep of the porous network of halite aggregates was imaged during compaction driven by pressure solution creep using. For these purposes, 3D X-ray microtomography (µCT) was successfully applied for visualizing several halite aggregate

Paris-Sud XI, Université de

9

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

10

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

E-Print Network (OSTI)

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

Schmidt, Volker

11

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

12

3D Optical Printing of Piezoelectric NanoparticlePolymer Composite Materials  

Science Journals Connector (OSTI)

ACS ActiveView PDFHi-Res Print, Annotate, Reference QuickView ... Here we demonstrate that efficient piezoelectric nanoparticlepolymer composite materials can be optically printed into three-dimensional (3D) microstructures using digital projection printing. ...

Kanguk Kim; Wei Zhu; Xin Qu; Chase Aaronson; William R. McCall; Shaochen Chen; Donald J. Sirbuly

2014-07-21T23:59:59.000Z

13

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

14

An advanced 3D boundary element method for characterizations of composite materials  

E-Print Network (OSTI)

An advanced 3D boundary element method for characterizations of composite materials X.L. Chena , Y developments in the modeling of composite materials using the boundary element method (BEM) are presented in dealing with nearly-singular integrals, which arise in the BEM modeling of composite materials

Liu, Yijun

15

Synchrotron 3D microtomography of halite aggregates during experimental pressure solution creep and evolution of the permeability  

E-Print Network (OSTI)

Synchrotron 3D microtomography of halite aggregates during experimental pressure solution creep and permeability variations in the upper crust. The three- dimensional geometry of the porous network of halite), Synchrotron 3D microtomography of halite aggregates during experimental pressure solution creep and evolution

16

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

E-Print Network (OSTI)

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

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

2005-12-02T23:59:59.000Z

17

Vacuum compatibility of 3D-printed materials Alexander P. Povilus, Caroline J. Wurden, Zak Vendeiro, Marcelo Baquero-Ruiz, and Joel Fajans  

E-Print Network (OSTI)

Vacuum compatibility of 3D-printed materials Alexander P. Povilus, Caroline J. Wurden, Zak Vendeiro) comments on items previously published in the journal. Vacuum compatibility of 3D-printed materials for currently available 3D-printed materials including polyamide, glass, acrylic, and sterling silver

Fajans, Joel

18

Crystal growth and electronic properties of a 3D Rashba material, BiTeI, with adjusted carrier concentrations  

Science Journals Connector (OSTI)

3D Rashba materials can be a leading player in spin-related novel phenomena, ranging from the metallic extreme (unconventional superconductivity) to the transport intermediate (spin Hall effects) to the novel insulating variant (3D topological insulating states). As the essential backbone for both fundamental and applied research of such a 3D Rashba material, this study established the growth of sizeable single crystals of a candidate compound BiTeI with adjusted carrier concentrations. Three techniques (standard vertical Bridgman, modified horizontal Bridgman, and vapour transport) were employed, and BiTeI crystals (>1?1?0.2mm3) with fundamentally different electronic states from metallic to insulating were successfully grown by the chosen technique. The 3D Rashba electronic states, including the Fermi surface topology, for the corresponding carrier concentrations of the obtained BiTeI crystals were revealed by relativistic first-principles calculations.

Manabu Kanou; Takao Sasagawa

2013-01-01T23:59:59.000Z

19

Is it sensible to 'deform' dose? 3D experimental validation of dose-warping  

SciTech Connect

Purpose: Strategies for dose accumulation in deforming anatomy are of interest in radiotherapy. Algorithms exist for the deformation of dose based on patient image sets, though these are sometimes contentious because not all such image calculations are constrained by physical laws. While tumor and organ motion has been a key area of study for a considerable amount of time, deformation is of increasing interest. In this work, we demonstrate a full 3D experimental validation of results from a range of dose deformation algorithms available in the public domain. Methods: We recently developed the first tissue-equivalent, full 3D deformable dosimetric phantom-'DEFGEL.' To assess the accuracy of dose-warping based on deformable image registration (DIR), we have measured doses in undeformed and deformed states of the DEFGEL dosimeter and compared these to planned doses and warped doses. In this way we have directly evaluated the accuracy of dose-warping calculations for 11 different algorithms. We have done this for a range of stereotactic irradiation schemes and types and magnitudes of deformation. Results: The original Horn and Schunck algorithm is shown to be the best performing of the 11 algorithms trialled. Comparing measured and dose-warped calculations for this method, it is found that for a 10 Multiplication-Sign 10 mm{sup 2} square field, {gamma}{sub 3%/3mm}= 99.9%; for a 20 Multiplication-Sign 20 mm{sup 2} cross-shaped field, {gamma}{sub 3%/3mm}= 99.1%; and for a multiple dynamic arc (0.413 cm{sup 3} PTV) treatment adapted from a patient treatment plan, {gamma}{sub 3%/3mm}= 95%. In each case, the agreement is comparable to-but consistently {approx}1% less than-comparison between measured and calculated (planned) dose distributions in the absence of deformation. The magnitude of the deformation, as measured by the largest displacement experienced by any voxel in the volume, has the greatest influence on the accuracy of the warped dose distribution. Considering the square field case, the smallest deformation ({approx}9 mm) yields agreement of {gamma}{sub 3%/3mm}= 99.9%, while the most significant deformation ({approx}20 mm) yields agreement of {gamma}{sub 3%/3mm}= 96.7%. Conclusions: We have confirmed that, for a range of mass and density conserving deformations representative of those observable in anatomical targets, DIR-based dose-warping can yield accurate predictions of the dose distribution. Substantial differences can be seen between the results of different algorithms indicating that DIR performance should be scrutinized before application todose-warping. We have demonstrated that the DEFGEL deformable dosimeter can be used to evaluate DIR performance and the accuracy of dose-warping results by direct measurement.

Yeo, U. J.; Taylor, M. L.; Supple, J. R.; Smith, R. L.; Dunn, L.; Kron, T.; Franich, R. D. [School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia); Physical Sciences, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002 (Australia) and Medical Physics, William Buckland Radiotherapy Centre, Alfred Hospital, Melbourne, Victoria 3181 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia) and Medical Physics, William Buckland Radiotherapy Centre, Alfred Hospital, Melbourne, Victoria 3181 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia) and Physical Sciences, Peter MacCallum Cancer Centre, East Melbourne, Victoria 3002 (Australia); School of Applied Sciences and Health Innovations Research Institute, RMIT University, Melbourne, Victoria 3000 (Australia)

2012-08-15T23:59:59.000Z

20

Hierarchical 3D micro-/nano-V2O5 (vanadium pentoxide) spheres as cathode materials for high-energy and high-power lithium ion-batteries  

Science Journals Connector (OSTI)

Abstract We facilely fabricate hierarchical 3D microspheres consisting of 2D V2O5 (vanadium pentoxide) nanosheets by a low temperature hydrothermal method and use it to structure hierarchical 3D micro-/nano-LIBs (lithium ion batteries) cathode. This is a template-free and facile method easy for scale-up production of hierarchical 3D micro-/nano-structured V2O5 spheres beneficial for high performance \\{LIBs\\} applications. Such a facile method resulted hierarchical 3D micro-/nano-V2O5 possess many unique features good for LIBs: (1) 2D V2O5 nanosheets facilitate the Li+ diffusions and electron transports; (2) hierarchical 3D micro-/nano-cathode structure built up by V2O5 nanosheet spheres will lead to the close and sufficient contact between electrolytes and activate materials and at the same time will create buffer volume to accommodate the volume change during discharging/charging process; and (3) micro-scale V2O5 spheres are easy to result in high cell packing density beneficial for high power battery. As revealed by the experimental results, the micro-/nano-V2O5 electrode demonstrates high initial discharge and charge capacities with no irreversible loss, high rate capacities at different currents and long-lasting lifespan. The high-energy and high-power performances of the micro-/nano-V2O5 electrode is ascribed to the unique hierarchical micro-/nano-structure merits of V2O5 spheres as abovementioned. In view of the advantages of facile fabrication method and unique features of 3D micro-/nano-V2O5 spheres for high power and high energy LIB battery, it is of great significance to beneficially broaden the applications of high-energy and high-power \\{LIBs\\} with creating novel hierarchical micro-/nano-structured V2O5 cathode materials.

Hongwei Bai; Zhaoyang Liu; Darren Delai Sun; Siew Hwa Chan

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

22

3D hollow Sn@carbon-graphene hybrid material as promising anode for lithium-ion batteries  

Science Journals Connector (OSTI)

A 3D hollow Sn@C-graphene hybrid material (HSCG) with high capacity and excellent cyclic and rate performance is fabricated by a one-pot assembly method. Due to the fast electron and ion transfer as well as the efficient carbon buffer structure, the ...

Xiaoyu Zheng, Wei Lv, Yan-Bing He, Chen Zhang, Wei Wei, Ying Tao, Baohua Li, Quan-Hong Yang

2014-01-01T23:59:59.000Z

23

Experimental onset threshold and magnetic pressure pileup for 3D Sweet-Parker reconnection  

SciTech Connect

In space, astrophysical and laboratory plasmas, magnetic reconnect ion converts magnetic into particle energy during unsteady, explosive events. The abrupt onset and cessation has been a long standing puzzle. We show the first three-dimensional (3D) laboratory example of onset and stagnation of Sweet-Parker type magnetic reconnection between magnetized and parallel current (flux) ropes driven by magnetohydrodynamic (MHD) attraction and 3D instability. Mutually attracting flux ropes advect and merge oppositely directed magnetic fields. Magnetic flux is annihilated, but reaches soon a threshold where magnetic flux and pressure pile up, and reconnection magnetic topology appears. This occurs when inflow speeds exceed the SweetParker speed v{sub SP} = v{sub A} / S{sup 1/2}, where v{sub A} is the Alfven speed and S is the Lundquist number for the reconnection layer, as magnetic flux arrives faster than flux annihilation can process it. Finally piled up fields generate MHD reaction forces that stall the inflow and the reconnection process.

Intrator, Thomas P [Los Alamos National Laboratory; Sun, Xuan [Los Alamos National Laboratory; Lapenta, Giovanni [Los Alamos National Laboratory; Furno, Ivo [Los Alamos National Laboratory; [NON LANL

2008-01-01T23:59:59.000Z

24

SABICs Carbon Fiber-Reinforced Material used to Produce the Worlds First 3D-Printed Vehicle at IMTS 2014  

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

An article with background information on SABIC and their carbon fiber-reinforced material, which is used in the world's first 3D-printed car.

25

Computational Analysis of a 3D Hypersonic Intake for Experimental Testing at Mach 8  

E-Print Network (OSTI)

as computational analysis of a complete scramjet demonstrator model has been initiated. The experimental tests technology concerning design and overall vehicle concept. In this context only the use of a scramjet within the German Research Training Group "Aerothermodynamic Design of a Scramjet Engine for Future Space

26

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

DOE Patents (OSTI)

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

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

2002-01-01T23:59:59.000Z

27

A 3D Orthotropic Strain-Rate Dependent Elastic Damage Material Model.  

SciTech Connect

A three dimensional orthotropic elastic constitutive model with continuum damage and cohesive based fracture is implemented for a general polymer matrix composite lamina. The formulation assumes the possibility of distributed (continuum) damage followed b y localized damage. The current damage activation functions are simply partially interactive quadratic strain criteria . However, the code structure allows for changes in the functions without extraordinary effort. The material model formulation, implementation, characterization and use cases are presented.

English, Shawn Allen

2014-09-01T23:59:59.000Z

28

Graphene's 3D Counterpart  

NLE Websites -- All DOE Office Websites (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...

29

Graphene's 3D Counterpart  

NLE Websites -- All DOE Office Websites (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...

30

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

31

Experimental evaluations of the accuracy of 3D and 4D planning in robotic tracking stereotactic body radiotherapy for lung cancers  

SciTech Connect

Purpose: Due to the complexity of 4D target tracking radiotherapy, the accuracy of this treatment strategy should be experimentally validated against established standard 3D technique. This work compared the accuracy of 3D and 4D dose calculations in respiration tracking stereotactic body radiotherapy (SBRT). Methods: Using the 4D planning module of the CyberKnife treatment planning system, treatment plans for a moving target and a static off-target cord structure were created on different four-dimensional computed tomography (4D-CT) datasets of a thorax phantom moving in different ranges. The 4D planning system used B-splines deformable image registrations (DIR) to accumulate dose distributions calculated on different breathing geometries, each corresponding to a static 3D-CT image of the 4D-CT dataset, onto a reference image to compose a 4D dose distribution. For each motion, 4D optimization was performed to generate a 4D treatment plan of the moving target. For comparison with standard 3D planning, each 4D plan was copied to the reference end-exhale images and a standard 3D dose calculation was followed. Treatment plans of the off-target structure were first obtained by standard 3D optimization on the end-exhale images. Subsequently, they were applied to recalculate the 4D dose distributions using DIRs. All dose distributions that were initially obtained using the ray-tracing algorithm with equivalent path-length heterogeneity correction (3D{sub EPL} and 4D{sub EPL}) were recalculated by a Monte Carlo algorithm (3D{sub MC} and 4D{sub MC}) to further investigate the effects of dose calculation algorithms. The calculated 3D{sub EPL}, 3D{sub MC}, 4D{sub EPL}, and 4D{sub MC} dose distributions were compared to measurements by Gafchromic EBT2 films in the axial and coronal planes of the moving target object, and the coronal plane for the static off-target object based on the {gamma} metric at 5%/3mm criteria ({gamma}{sub 5%/3mm}). Treatment plans were considered acceptable if the percentage of pixels passing {gamma}{sub 5%/3mm} (P{sub {gamma}<1}) {>=} 90%. Results: The averaged P{sub {gamma}<1} values of the 3D{sub EPL}, 3D{sub MC}, 4D{sub EPL}, and 4D{sub MC} dose calculation methods for the moving target plans are 95%, 95%, 94%, and 95% for reproducible motion, and 95%, 96%, 94%, and 93% for nonreproducible motion during actual treatment delivery. The overall measured target dose distributions are in better agreement with the 3D{sub MC} dose distributions than the 4D{sub MC} dose distributions. Conversely, measured dose distributions agree much better with the 4D{sub EPL/MC} than the 3D{sub EPL/MC} dose distributions in the static off-target structure, resulting in higher P{sub {gamma}<1} values with 4D{sub EPL/MC} (91%) vs 3D{sub EPL} (24%) and 3D{sub MC} (25%). Systematic changes of target motion reduced the averaged P{sub {gamma}<1} to 47% and 53% for 4D{sub EPL} and 4D{sub MC} dose calculations, and 22% for 3D{sub EPL/MC} dose calculations in the off-target films. Conclusions: In robotic tracking SBRT, 4D treatment planning was found to yield better prediction of the dose distributions in the off-target structure, but not necessarily in the moving target, compared to standard 3D treatment planning, for reproducible and nonreproducible target motion. It is important to ensure on a patient-by-patient basis that the cumulative uncertainty associated with the 4D-CT artifacts, deformable image registration, and motion variability is significantly smaller than the cumulative uncertainty occurred in standard 3D planning in order to make 4D planning a justified option.

Chan, Mark K. H. [Department of Clinical Oncology, The University of Hong Kong and Department of Clinical Oncology, Tuen Mun Hospital, Hong Kong Special Administrative Region, 999077 (Hong Kong); Kwong, Dora L. W.; Ng, Sherry C. Y. [Department of Clinical Oncology, Queen Mary Hospital, Hong Kong Special Administrative Region, 999077 (Hong Kong); Tong, Anthony S. M.; Tam, Eric K. W. [Theresa Po CyberKnife Center, Hong Kong Special Administrative Region, 999077 (Hong Kong)

2013-04-15T23:59:59.000Z

32

Luminescent solar concentrators: From experimental validation of 3D ray-tracing simulations to coloured stained-glass windows for BIPV  

Science Journals Connector (OSTI)

Abstract Luminescent solar concentrators (LSC) are a promising technology for building integrated photovoltaics (BIPV) given the wide variety of forms and colours that can be realised. Given the flexibility of the technology, the use of ray-trace modelling is indispensable in the design, performance evaluation, and optimisation of LSCs. This work begins by comparing a three dimensional (3D) ray-trace model of an LSC with experimental results. The study includes 70 samples both square and circular LSCs, containing five different fluorescent organic dyes (BASF Lumogen) each at seven different concentrations. The figure-of-merit used for performance evaluation was the average power density determined at the LSC edge sheet, measured using an optical fibre connected to a spectrometer. The results demonstrate that 3D ray-trace results gives good agreement with the experimental measurements, to within around 5% within a wide concentration range (optical density=0.058) and a maximum difference of 13%. The wide range of colours achieved is presented in a CIE chart. Overall, the validated experimental results give confidence in the use of modelling for future larger \\{LSCs\\} for BIPV. Therefore, based on these results and the colours achievable, a model of a stained-glass window is constructed and its performance throughout a solar day is simulated.

A. Kerrouche; D.A. Hardy; D. Ross; B.S. Richards

2014-01-01T23:59:59.000Z

33

Evaluation of single-field macro element for predicting 3D material properties of plain weave composites  

E-Print Network (OSTI)

) the contribution of the i subdomain stiffness matrix becomes 14 The three coordinate systems for three dimensional analysis would be (x, y, z), (g, rl, g), and (r, s, t). Eq. (3. 2. 15) can be rewritten for 3D as i i i [)~], = f J J[?'[~];[?P~~J?&dr (3. 2. 16... . . . . . . . . . . . 73 11 Meshes used in the convergence study for flattened models of WR=1/3 . . . . . . . . . . . . 74 12 In-plane effective moduli E?and G?? for lenticular model?. . . 13 In-plane effective moduli E?and G?r for flattened model. . . . 14 Out...

Noh, Jae Huek

1997-01-01T23:59:59.000Z

34

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

35

Using Single-Camera 3-D Imaging to Guide Material Handling Robots in a Nuclear Waste Package Closure System  

SciTech Connect

Nuclear reactors for generating energy and conducting research have been in operation for more than 50 years, and spent nuclear fuel and associated high-level waste have accumulated in temporary storage. Preparing this spent fuel and nuclear waste for safe and permanent storage in a geological repository involves developing a robotic packaging systema system that can accommodate waste packages of various sizes and high levels of nuclear radiation. During repository operation, commercial and government-owned spent nuclear fuel and high-level waste will be loaded into casks and shipped to the repository, where these materials will be transferred from the casks into a waste package, sealed, and placed into an underground facility. The waste packages range from 12 to 20 feet in height and four and a half to seven feet in diameter. Closure operations include sealing the waste package and all its associated functions, such as welding lids onto the container, filling the inner container with an inert gas, performing nondestructive examinations on welds, and conducting stress mitigation. The Idaho National Laboratory is designing and constructing a prototype Waste Package Closure System (WPCS). Control of the automated material handling is an important part of the overall design. Waste package lids, welding equipment, and other tools must be moved in and around the closure cell during the closure process. These objects are typically moved from tool racks to a specific position on the waste package to perform a specific function. Periodically, these objects are moved from a tool rack or the waste package to the adjacent glovebox for repair or maintenance. Locating and attaching to these objects with the remote handling system, a gantry robot, in a loosely fixtured environment is necessary for the operation of the closure cell. Reliably directing the remote handling system to pick and place the closure cell equipment within the cell is the major challenge.

Rodney M. Shurtliff

2005-09-01T23:59:59.000Z

36

Experimental validation of 3D reconstructed pin-power distributions in full-scale BWR fuel assemblies with partial length rods  

SciTech Connect

Total fission rate measurements have been performed on full-size BWR fuel assemblies of type SVEA-96 Optima2 in the framework of Phase III of the LWR-PROTEUS experimental program at the Paul Scherrer Inst.. This paper presents comparisons of calculated, nodal reconstructed, pin-wise total-fission rate distributions with experimental results. Radial comparisons have been performed for the three sections of the assembly (96, 92 and 84 fuel pins), while three-dimensional effects have been investigated at pellet-level for the two transition regions, i.e. the tips of the short (1/3) and long (2/3) partial length rods. The test zone has been modeled using two different code systems: HELIOS/PRESTO-2 and CASMO-5/SIMULATE-5. The first is presently used for core monitoring and design at the Leibstadt Nuclear Power Plant (KKL). The second represents the most recent generation of the widely applied CASMO/SIMULATE system. For representing the PROTEUS test-zone boundaries, Partial Current Ratios (PCRs) - derived from a 3D MCNPX model of the entire reactor - have been applied to the PRESTO-2 and SIMULATE-5 models in the form of 2- and 5-group diagonal albedo matrices, respectively. The MCNPX results have also served as a reference, high-order transport solution in the calculation/experiment comparisons. It is shown that the performance of the nodal methodologies in predicting the global distribution of the total-fission rate is very satisfactory. Considering the various radial comparisons, the standard deviations of the calculated/experimental (C/E) distributions do not exceed 1.9% for any of the three methodologies - PRESTO-2, SIMULATE-5 and MCNPX. For the three-dimensional comparisons at pellet-level, the corresponding standard deviations are 2.7%, 2.0% and 2.1%, respectively. (authors)

Giust, F. D. [Axpo Kernenergie, Parkstrasse 23, CH-5401 Baden (Switzerland); Swiss Federal Inst. of Technology EPFL, CH-1015 Lausanne (Switzerland); Grimm, P. [Paul Scherrer Inst., CH-5232 Villigen (Switzerland); Chawla, R. [Paul Scherrer Inst., CH-5232 Villigen (Switzerland); Swiss Federal Inst. of Technology (EPFL), CH-1015 Lausanne (Switzerland)

2012-07-01T23:59:59.000Z

37

Printing 3D Catalytic Devices | The Ames Laboratory  

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

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

38

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/

39

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

40

Z .Diamond and Related Materials 10 2001 364 369 Experimental data vs. 3-D model calculations of HFCVD  

E-Print Network (OSTI)

rH and3 4 2 C H rH process gas mixtures and to examine in detail the process of C lC inter-conversion between C and C hydrocar-2 1 bon species in the gas phase. Another important con- Zsideration in the gas phase. It has been2 2 2 2 1 shown that cooler regions distant from the filament need

Bristol, University of

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

E-Print Network (OSTI)

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

Wu, Huali

2013-08-08T23:59:59.000Z

42

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

43

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

44

Analytically driven experimental characterisation of damping in viscoelastic materials  

Science Journals Connector (OSTI)

Abstract The damping assessment of highly dissipative materials is a challenging task that has been addressed by several researchers; in particular Oberst defined a standard method to address the issue. Experimental tests are often hindered by the poor mechanical properties of most viscoelastic materials; these characteristics make experimental activities using pure viscoelastic specimens prone to nonlinear phenomena. In this paper, a mixed predictive/experimental methodology is developed to determine the frequency behaviour of the complex modulus of such materials. The loss factor of hybrid sandwich specimens, composed of two aluminium layers separated by the damping material, is determined by experimental modal identification. Finite element models and a reversed application of the modal strain energy technique are then used to recover the searched storage modulus and loss factor curves of rubber. In particular, the experimental setup was studied by comparing the solutions adopted with the guidelines given in ASTM-E756-05. An exhaustive validation of the values obtained is then reported.

Gian Luca Ghiringhelli; Mauro Terraneo

2014-01-01T23:59:59.000Z

45

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...

46

3D Plasmon Ruler  

SciTech Connect

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

47

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

48

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

49

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

50

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"

51

Experimental molecular spectroscopy in shock-compressed materials  

SciTech Connect

Shocked materials present an exciting challenge to the experimental spectroscopist. The severe constraints in time and space imposed by the shock process can also be accompanied by chemical complexity. Many standard spectroscopic techniques have recently been adapted with varying degrees of success. Those discussed here are uv/visible absorption, emission, and fluorescence, infrared absorption, and spontaneous and coherent Raman scattering. The importance of the connection to both theory and static high-pressure methods is emphasized.

Moore, D.S.; Schmidt, S.C.

1987-01-01T23:59:59.000Z

52

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

53

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

54

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

55

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

56

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

57

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

58

ICCV 2013 Submission #1603. CONFIDENTIAL REVIEW COPY. DO NOT DISTRIBUTE. Efficient 3D Scene Labeling Using Fields of Trees -Supplementary Material  

E-Print Network (OSTI)

100 101 102 103 104 105 106 107 ICCV #1603 ICCV #1603 ICCV 2013 Submission #1603. CONFIDENTIAL REVIEW Anonymous ICCV submission Paper ID 1603 Abstract This supplementary material contains additional exper

Oxford, University of

59

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

60

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

62

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

63

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

64

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

65

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

66

Experimental Study of Plasma Materials' Interaction in Plasma Focus Dena  

Science Journals Connector (OSTI)

It is widely recognized that plasma material interaction in fusion devices is a critical issue that affects the overall machine performance. The process of material selection with a low degradation effect on the ...

M. V. Roshan; M. Mahmoodi Darian

2003-03-01T23:59:59.000Z

67

Experimental characterization of energetic material dynamics for multiphase blast simulation.  

SciTech Connect

Currently there is a substantial lack of data for interactions of shock waves with particle fields having volume fractions residing between the dilute and granular regimes, which creates one of the largest sources of uncertainty in the simulation of energetic material detonation. To close this gap, a novel Multiphase Shock Tube has been constructed to drive a planar shock wave into a dense gas-solid field of particles. A nearly spatially isotropic field of particles is generated in the test section by a gravity-fed method that results in a spanwise curtain of spherical 100-micron particles having a volume fraction of about 19%. Interactions with incident shock Mach numbers of 1.66, 1.92, and 2.02 were achieved. High-speed schlieren imaging simultaneous with high-frequency wall pressure measurements are used to reveal the complex wave structure associated with the interaction. Following incident shock impingement, transmitted and reflected shocks are observed, which lead to differences in particle drag across the streamwise dimension of the curtain. Shortly thereafter, the particle field begins to propagate downstream and spread. For all three Mach numbers tested, the energy and momentum fluxes in the induced flow far downstream are reduced about 30-40% by the presence of the particle field. X-Ray diagnostics have been developed to penetrate the opacity of the flow, revealing the concentrations throughout the particle field as it expands and spreads downstream with time. Furthermore, an X-Ray particle tracking velocimetry diagnostic has been demonstrated to be feasible for this flow, which can be used to follow the trajectory of tracer particles seeded into the curtain. Additional experiments on single spherical particles accelerated behind an incident shock wave have shown that elevated particle drag coefficients can be attributed to increased compressibility rather than flow unsteadiness, clarifying confusing results from the historical database of shock tube experiments. The development of the Multiphase Shock Tube and associated diagnostic capabilities offers experimental capability to a previously inaccessible regime, which can provide unprecedented data concerning particle dynamics of dense gas-solid flows.

Beresh, Steven Jay; Wagner, Justin L.; Kearney, Sean Patrick; Wright, Elton K.; Baer, Melvin R.; Pruett, Brian Owen Matthew

2011-09-01T23:59:59.000Z

68

3D World Building System  

SciTech Connect

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

69

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

70

a theory in a 3D context is necessary. A decisive test of theories would be to see whether incorporating the interaction of the sidewall in various experimental geometries can produce  

E-Print Network (OSTI)

a theory in a 3D context is necessary. A decisive test of theories would be to see whether theories and sim- ulations such as Ref. [59, 1] generally have a length scale an order of magnitude larger

Gollub, Jerry P.

71

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

72

DYNA3D: A nonlinear, explicit, three-dimensional finite element code for solid and structural mechanics, User manual. Revision 1  

SciTech Connect

This report is the User Manual for the 1993 version of DYNA3D, and also serves as a User Guide. DYNA3D is a nonlinear, explicit, finite element code for analyzing the transient dynamic response of three-dimensional solids and structures. The code is fully vectorized and is available on several computer platforms. DYNA3D includes solid, shell, beam, and truss elements to allow maximum flexibility in modeling physical problems. Many material models are available to represent a wide range of material behavior, including elasticity, plasticity, composites, thermal effects, and rate dependence. In addition, DYNA3D has a sophisticated contact interface capability, including frictional sliding and single surface contact. Rigid materials provide added modeling flexibility. A material model driver with interactive graphics display is incorporated into DYNA3D to permit accurate modeling of complex material response based on experimental data. Along with the DYNA3D Example Problem Manual, this document provides the information necessary to apply DYNA3D to solve a wide range of engineering analysis problems.

Whirley, R.G.; Engelmann, B.E.

1993-11-01T23:59:59.000Z

73

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

74

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

75

E-Print Network 3.0 - advanced 3d power Sample Search Results  

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

Materials Science and Engineering, University of Toronto Collection: Materials Science ; Energy Storage, Conversion and Utilization 23 Physical Design Automation Challenges for 3D...

76

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

77

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

78

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

79

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.

80

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

82

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

83

Energy Savings in 3-D | ornl.gov  

NLE Websites -- All DOE Office Websites (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.

84

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

85

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

86

RELAP5 Model of a Two-phase ThermoSyphon Experimental Facility for Fuels and Materials Irradiation  

SciTech Connect

The High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL) does not have a separate materials-irradiation flow loop and requires most materials and all fuel experiments to be placed inside a containment. This is necessary to ensure that internal contaminants such as fission products cannot be released into the primary coolant. As part of the safety basis justification, HFIR also requires that all experiments be able to withstand various accident conditions (e.g., loss of coolant) without generating vapor bubbles on the surface of the experiment in the primary coolant. As with any parallel flow system, HFIR is vulnerable to flow excursion events when vapor is generated in one of those flow paths. The effects of these requirements are to artificially increase experiment temperatures by introducing a barrier between the experimental materials and the HFIR coolant and to reduce experiment heat loads to ensure boiling doesn t occur. A new experimental facility for materials irradiation and testing in the HFIR is currently being developed to overcome these limitations. The new facility is unique in that it will have its own internal cooling flow totally independent of the reactor primary coolant and boiling is permitted. The reactor primary coolant will cool the outside of this facility without contacting the materials inside. The ThermoSyphon Test Loop (TSTL), a full scale prototype of the proposed irradiation facility to be tested outside the reactor, is being designed and fabricated (Ref. 1). The TSTL is a closed system working as a two-phase thermosyphon. A schematic is shown in Fig. 1. The bottom central part is the boiler/evaporator and contains three electric heaters. The vapor generated by the heaters will rise and be condensed in the upper condenser, the condensate will drain down the side walls and be circulated via a downcomer back into the bottom of the boiler. An external flow system provides coolant that simulates the HFIR primary coolant. The two-phase flow code RELAP5-3D (Ref. 2) is the main tool employed in this design. The model has multiple challenges: boiling, condensation and natural convection flows need to be modeled accurately.

Carbajo, Juan J [ORNL] [ORNL; McDuffee, Joel Lee [ORNL] [ORNL

2013-01-01T23:59:59.000Z

87

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

88

3D Printed Shelby Cobra  

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

89

Theoretical and Experimental Thermal Performance Analysis of Complex Thermal Storage Membrane Containing Bio-Based Phase Change Material (PCM)  

SciTech Connect

Since 2000, an ORNL research team has been testing different configurations of PCM-enhanced building envelop components to be used in residential and commercial buildings. During 2009, a novel type of thermal storage membrane was evaluated for building envelope applications. Bio-based PCM was encapsulated between two layers of heavy-duty plastic film forming a complex array of small PCM cells. Today, a large group of PCM products are packaged in such complex PCM containers or foils containing arrays of PCM pouches of different shapes and sizes. The transient characteristics of PCM-enhanced building envelope materials depend on the quality and amount of PCM, which is very often difficult to estimate because of the complex geometry of many PCM heat sinks. The only widely used small-scale analysis method used to evaluate the dynamic characteristics of PCM-enhanced building products is the differential scanning calorimeter (DSC). Unfortunately, this method requires relatively uniform, and very small, specimens of the material. However, in numerous building thermal storage applications, PCM products are not uniformly distributed across the surface area, making the results of traditional DSC measurements unrealistic for these products. In addition, most of the PCM-enhanced building products contain blends of PCM with fire retardants and chemical stabilizers. This combination of non-uniform distribution and non-homogenous composition make it nearly impossible to select a representative small specimen suitable for DSC tests. Recognizing these DSC limitations, ORNL developed a new methodology for performing dynamic heat flow analysis of complex PCM-enhanced building materials. An experimental analytical protocol to analyze the dynamic characteristics of PCM thermal storage makes use of larger specimens in a conventional heat-flow meter apparatus, and combines these experimental measurements with three-dimensional (3-D) finite-difference modeling and whole building energy simulations. Based on these dynamic tests and modeling, ORNL researchers then developed a simplified one-dimensional (1-D) model of the PCM-enhanced building component that can be easily used in whole-building simulations. This paper describes this experimental-analytical methodology as used in the analysis of an insulation assembly containing a complex array of PCM pouches. Based on the presented short example of whole building energy analysis, this paper describes step-by-step how energy simulation results can be used for optimization of PCM-enhanced building envelopes. Limited results of whole building energy simulations using the EnergyPlus program are presented as well.

Kosny, Jan [ORNL; Stovall, Therese K [ORNL; Shrestha, Som S [ORNL; Yarbrough, David W [ORNL

2010-12-01T23:59:59.000Z

90

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

91

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

92

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

SciTech Connect

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

93

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

94

Spec2Fab: A reducer-tuner model for translating specifications to 3D prints  

E-Print Network (OSTI)

Multi-material 3D printing allows objects to be composed of complex, heterogenous arrangements of materials. It is often more natural to define a functional goal than to define the material composition of an object. ...

Chen, Desai

95

An experimental approach to compare wicking abilities of fabric materials for heat pipe applications  

SciTech Connect

Replacement of components of a space reactor heat pipe by advanced ceramic fabrics will decrease system mass considerably. Replacement of the metal wick by a fibrous materials makes calculation of the wicking ability difficult. An experimental approach is necessary to ensure that heat transport ability is not affected considerably and to optimize material chosen for wicking structure. Variables such as material composition, surface preparation, weave type and density, and pressure/temperature variations need to be examined. Two experiments are discussed which allow complete comparison of all these variables and measurement of the wicking ability. These experiments are unique in their approach to simulation of operating conditions of the heat pipe.

Marks, T.S.; Klein, A.C. (Department of Nuclear Engineering Radiation Center, C116 Oregon State University Corvallis, OR 97331-5902 (US))

1991-01-05T23:59:59.000Z

96

Experimental and numerical evaluation of electromagnetic acoustic transducer performance on steel materials  

E-Print Network (OSTI)

Experimental and numerical evaluation of electromagnetic acoustic transducer performance on steel 2011 Keywords: Electromagnetic Acoustic Transducers Magnetostriction Lorentz force Steel a b s t r a c of the test object. A wide variety of steel materials is employed in many industrial applications, so

Nagy, Peter B.

97

Nadia Hoyet . Page 1 /10 Multi-criteria experimentation and conception of building components and materials.  

E-Print Network (OSTI)

of this multi-criteria process are in the resolution of the conflict between the two types of tests. It requires of building process architecture design of building components dry building site experimental prototype properties of polymers have deeply transformed the nature of major traditional building materials

Paris-Sud XI, Université de

98

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

99

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

100

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

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


101

3D 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"

102

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

103

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

104

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

105

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

106

Closed source experimental system for soft x-ray spectroscopy of radioactive materials  

Science Journals Connector (OSTI)

An instrumental and experimental setup for soft x-rayspectroscopy meeting the requirements of a closed source for radioactivity is described. The system consists of a vacuum sealed cell containing the sample mounted on a tubing system to ensure compatibility with most standard manipulators. The soft x rays penetrate a thin x-ray window separating the interior of the cell from the vacuum in the experimental chamber. Our first results for single crystal PuO 2 confirm the feasibility of experiments using the setup. The results are consistent with results of first principles calculations and previously recorded spectra obtained using a standard open source setup. The results show that the closed source experimental system can be used to collect valuable experimental data from radioactive materials.

A. Modin; S. M. Butorin; J. Vegelius; A. Olsson; C.-J. Englund; J. Andersson; L. Werme; J. Nordgren; T. Kmbre; G. Skarnemark; B. E. Burakov

2008-01-01T23:59:59.000Z

107

Methodology of Materials Discovery in Complex Metal Hydrides Using Experimental and Computational Tools  

SciTech Connect

We present a review of the experimental and theoretical methods used in the discovery of new metal-hydrogen materials systems for hydrogen storage applications. Rather than a comprehensive review of all new materials and methods used in the metal hydride community, we focus on a specific subset of successful methods utilizing theoretical crystal structure prediction methods, computational approaches for screening large numbers of compound classes, and medium-throughput experimental methods for the preparation of such materials. Monte Carlo techniques paired with a simplified empirical Hamiltonian provide crystal structure candidates that are refined using Density Functional Theory. First-principle methods using high-quality structural candidates are further screened for an estimate of reaction energetics, decomposition enthalpies, and determination of reaction pathways. Experimental synthesis utilizes a compacted-pellet sintering technique under high-pressure hydrogen at elevated temperatures. Crystal structure determination follows from a combination of Rietveld refinements of diffraction patterns and first-principles computation of total energies and dynamical stability of competing structures. The methods presented within are general and applicable to a wide class of materials for energy storage.

Majzoub, Eric H.; Ronnebro, Ewa

2012-02-22T23:59:59.000Z

108

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

109

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

110

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

111

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

112

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

113

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

114

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

115

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

116

3D Site Response using NLSSI  

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

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

117

Metrology of 3D nanostructures.  

SciTech Connect

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

118

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

E-Print Network (OSTI)

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

Hagness, Susan C.

119

3-D seismology in the Arabian Gulf  

SciTech Connect

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

120

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

An experimental investigation of damage-dependent material damping of laminated composites  

E-Print Network (OSTI)

Composites. (May 1988) Scott Andrew Smith, B. S. , Texas A&M University Co-Chairs of Advisory Committee: Dr. Alton L. Highsmith Dr. Charles E. Harris An experimental program was developed in which the material damping of laminated graphite... for Undamaged and Damaged Graphite/Epoxy Laminates. . . . . . . . . LIST OF TABLES Table Page 1 Lamina Properties for AS4/3502 Graphite/Epoxy. . . . 13 2 AS4/3502 Laminate Types Testes. . . 13 3 Damping Results for [0]s and [90]s Laminates...

Smith, Scott Andrew

2012-06-07T23:59:59.000Z

122

BEAMS3D Neutral Beam Injection Model  

SciTech Connect

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

123

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

124

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

E-Print Network (OSTI)

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

Sapatnekar, Sachin

125

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.

126

Cyanide clusters of ReII with 3d metal ions and their magnetic properties: incorporating anisotropic ions into metal-cyanide clusters with high spin magnetic ground states  

E-Print Network (OSTI)

?????????????????... 69 III METAL-CYANIDE CUBES OF ReII AND MID TRANSITION SERIES 3d IONS {[MCl]4[Re(triphos)(CN)3]4} M = Mn, Fe, Co; AND THEIR MAGNETIC PROPERTIES??????????...72 I. Introduction?????????????????????. 72 II.... Experimental Section????...................................................... 74 A. Starting Materials??........................................................ 74 B. Synthesis of Molecular Cubes of Re4Mn4, Re4Fe4, Re 4Co4...

Schelter, Eric John

2005-08-29T23:59:59.000Z

127

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

SciTech Connect

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

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

2012-07-01T23:59:59.000Z

128

Importance of the gas phase role to the prediction of energetic material behavior: An experimental study  

Science Journals Connector (OSTI)

Various thermal (radiative conductive and convective) initiation experiments are performed to demonstrate the importance of the gas phase role in combustionmodeling of energetic materials (EM). A previously published condensed phase model that includes a predicted critical irradiance above which ignition is not possible is compared to experimental laser ignition results for octahydro-1 3 5 7-tetranitro-1 3 5 7-tetrazocine (HMX) and 2 4 6-trinitrotoluene (TNT). Experimental results conflict with the predicted critical irradiance concept. The failure of the model is believed to result from a misconception about the role of the gas phase in the ignition process of energetic materials. The model assumes that ignition occurs at the surface and that evolution of gases inhibits ignition. High speed video of laser ignition oven cook-off and hot wire ignition experiments captures the ignition of HMX and TNT in the gas phase. A laser ignition gap test is performed to further evaluate the effect of gas phase laser absorption and gas phase disruption on the ignition process. Results indicate that gas phase absorption of the laser energy is probably not the primary factor governing the gas phase ignition observations. It is discovered that a critical gap between an HMX pellet and a salt window of 6 mm 0.4 mm exists below which ignition by C O 2 laser is not possible at the tested irradiances of 29 W ? cm 2 and 38 W ? cm 2 for HMX ignition. These observations demonstrate that a significant disruption of the gas phase in certain scenarios will inhibit ignition independent of any condensed phase processes. These results underscore the importance of gas phase processes and illustrate that conditions can exist where simple condensed phase models are inadequate to accurately predict the behavior of energetic materials.

A. N. Ali; S. F. Son; B. W. Asay; R. K. Sander

2005-01-01T23:59:59.000Z

129

Importance of the gas phase role to the prediction of energetic material behavior: An experimental study  

SciTech Connect

Various thermal (radiative, conductive, and convective) initiation experiments are performed to demonstrate the importance of the gas phase role in combustion modeling of energetic materials (EM). A previously published condensed phase model that includes a predicted critical irradiance above which ignition is not possible is compared to experimental laser ignition results for octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and 2,4,6-trinitrotoluene (TNT). Experimental results conflict with the predicted critical irradiance concept. The failure of the model is believed to result from a misconception about the role of the gas phase in the ignition process of energetic materials. The model assumes that ignition occurs at the surface and that evolution of gases inhibits ignition. High speed video of laser ignition, oven cook-off and hot wire ignition experiments captures the ignition of HMX and TNT in the gas phase. A laser ignition gap test is performed to further evaluate the effect of gas phase laser absorption and gas phase disruption on the ignition process. Results indicate that gas phase absorption of the laser energy is probably not the primary factor governing the gas phase ignition observations. It is discovered that a critical gap between an HMX pellet and a salt window of 6 mm{+-}0.4 mm exists below which ignition by CO{sub 2} laser is not possible at the tested irradiances of 29 W/cm{sup 2} and 38 W/cm{sup 2} for HMX ignition. These observations demonstrate that a significant disruption of the gas phase, in certain scenarios, will inhibit ignition, independent of any condensed phase processes. These results underscore the importance of gas phase processes and illustrate that conditions can exist where simple condensed phase models are inadequate to accurately predict the behavior of energetic materials.

Ali, A.N.; Son, S.F.; Asay, B.W.; Sander, R.K. [Los Alamos National Laboratory, MS C920, Los Alamos, New Mexico 87544 (United States)

2005-03-15T23:59:59.000Z

130

3D packaging for integrated circuit systems  

SciTech Connect

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

131

Investigations in massive 3D gravity  

SciTech Connect

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

132

N-Doped GrapheneVO2(B) Nanosheet-Built 3D Flower Hybrid for Lithium Ion Battery  

Science Journals Connector (OSTI)

N-Doped GrapheneVO2(B) Nanosheet-Built 3D Flower Hybrid for Lithium Ion Battery ... Graphene-based electrode materials for rechargeable lithium batteries ...

C. Nethravathi; Catherine R. Rajamathi; Michael Rajamathi; Ujjal K. Gautam; Xi Wang; Dmitri Golberg; Yoshio Bando

2013-03-13T23:59:59.000Z

133

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

134

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

135

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

136

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

137

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

138

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

139

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

140

Effect of 3d doping on the electronic structure of BaFe2As2  

SciTech Connect

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

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

2012-04-25T23:59:59.000Z

Note: This page contains sample records for the topic "materials 3d experimental" 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

Studies of the 3D surface roughness height  

SciTech Connect

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

142

Experimental investigation of plastic finned-tube heat exchangers, with emphasis on material thermal conductivity  

SciTech Connect

In this paper, two modified types of polypropylene (PP) with high thermal conductivity up to 2.3 W/m K and 16.5 W/m K are used to manufacture the finned-tube heat exchangers, which are prospected to be used in liquid desiccant air conditioning, heat recovery, water source heat pump, sea water desalination, etc. A third plastic heat exchanger is also manufactured with ordinary PP for validation and comparison. Experiments are carried out to determine the thermal performance of the plastic heat exchangers. It is found that the plastic finned-tube heat exchanger with thermal conductivity of 16.5 W/m K can achieve overall heat transfer coefficient of 34 W/m{sup 2} K. The experimental results are compared with calculation and they agree well with each other. Finally, the effect of material thermal conductivity on heat exchanger thermal performance is studied in detail. The results show that there is a threshold value of material thermal conductivity. Below this value improving thermal conductivity can considerably improve the heat exchanger performance while over this value improving thermal conductivity contributes very little to performance enhancement. For the finned-tube heat exchanger designed in this paper, when the plastic thermal conductivity can reach over 15 W/m K, it can achieve more than 95% of the titanium heat exchanger performance and 84% of the aluminum or copper heat exchanger performance with the same dimension. (author)

Chen, Lin; Li, Zhen; Guo, Zeng-Yuan [Department of Engineering Mechanics, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084 (China)

2009-07-15T23:59:59.000Z

143

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

E-Print Network (OSTI)

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

Kilchherr, F.

144

Local Motors Begins Their Six Day Quest to 3D Print the 'Strati...  

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

a Car: A Team Effort in Innovation Printing a Car: A Team Effort in Innovation SABIC's Carbon Fiber-Reinforced Material used to Produce the World's First 3D-Printed Vehicle at...

145

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

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

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...

146

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

147

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.

148

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

149

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

150

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

151

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

152

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

153

Development of a physical 3D anthropomorphic breast phantom  

SciTech Connect

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

154

Superplastic forming using NIKE3D  

SciTech Connect

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

155

3D Modeling Engine Representation Summary Report  

SciTech Connect

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

156

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

157

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

158

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

159

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

160

Toward Lighter, Stiffer Materials  

Science Journals Connector (OSTI)

...as additive manufacturing and three-dimensional (3D) printing offer the opportunity to tailor properties to location-specific...fabrication routes for cellular materials are exemplified by 3D printing, but considerable progress must still be made to enhance...

Tobias A. Schaedler; Alan J. Jacobsen; Wiliam B. Carter

2013-09-13T23:59:59.000Z

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

162

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

163

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

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

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

164

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

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

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

165

Experimental investigation of high temperature thermal contact resistance between high thermal conductivity C/C material and Inconel 600  

Science Journals Connector (OSTI)

Abstract Thermal contact resistance at the assembly interface plays an important role in high temperature structure design and safety assessment. Thermal contact resistance between high thermal conductivity C/C material and superalloy Inconel 600 was experimentally investigated in the present paper. They are widely used in thermal protection structures of heat-pipe-cooled leading edges to enhance interface heat transfer. Results showed that thermal contact resistance between the two materials is about 5נ10?5m2K/W, and it is necessary to take into account the effect of the thermal contact resistance in high thermal conductivity C/C material related thermal structure design.

Donghuan Liu; Yan Luo; Xinchun Shang

2015-01-01T23:59:59.000Z

166

3-D Model for Deactivation & Decommissioning  

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

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

167

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

168

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":""}]}

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

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

E-Print Network (OSTI)

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

Van Veen, Barry D.

171

3D Equilibrium Effects due to RMP application on DIII-D* S. Lazerson1, E. Lazarus2, S. Hudson1, N. Pablant1, D. Gates1  

E-Print Network (OSTI)

3D Equilibrium Effects due to RMP application on DIII-D* S. Lazerson1, E. Lazarus2, S. Hudson1, N that are consistent with the experimental pres- sure and current profiles. A 3D reconstruction using the STELLOPT code the equilibria generated by the 3D codes and between STELLOPT and EFIT are presented. Introduction Interpretation

Hudson, Stuart

172

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

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

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

176

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

177

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

178

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

179

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

180

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

182

Experimental Study of Multi-type Macromolecule Porosity Moisture-Conditioned Material  

E-Print Network (OSTI)

from figure that humidity relocation process of the porous moisture conditioned materials similar to the principles of humidity absorbing and releasing performance, when outside water vapour pressure less than sub-surface water vapour hours... material pressure, the release of material outward water, and bring a humidity removal because of capillarity in porous layer, porous layer absorb moisture from the wet floor, evaporation continuing (Fig2a). When outside water vapour pressure greater...

Huang, X.; Fan, Y.; Di, Y.

2006-01-01T23:59:59.000Z

183

Theoretical and experimental study of solid state complex borohydride hydrogen storage materials.  

E-Print Network (OSTI)

??Materials that are light weight, low cost and have high hydrogen storage capacity are essential for on-board vehicular applications. Some reversible complex hydrides are alanates (more)

Choudhury, Pabitra

2009-01-01T23:59:59.000Z

184

Design, Optimization, Calibration, and a Case Study of a 3D-Printed, Low-cost Fingertip Sensor for Robotic Manipulation  

E-Print Network (OSTI)

Design, Optimization, Calibration, and a Case Study of a 3D-Printed, Low-cost Fingertip Sensor fingertip force sensor for robotic manipulation. Our design makes the most of 3D printing technology sensor features a detachable fingertip made of 3D- printed materials, and a cantilever mechanism

Todorov, Emanuel

185

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.

186

3D reconstruction of tensors and vectors  

SciTech Connect

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

Defrise, Michel; Gullberg, Grant T.

2005-02-17T23:59:59.000Z

187

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

188

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

189

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

190

Experimental Research on Thermal Performance of Lightweight Envelope Integrated with Phase Change Material  

Science Journals Connector (OSTI)

Present relief camp built with lightweight envelope has obvious cold-house effect and poor indoor thermal environment. Advantage of phase change material provides one possible way to improve thermal...

Jun Wang; Long Xu; Enshen Long

2014-01-01T23:59:59.000Z

191

Experimental study to determine basic performance characteristics of recycled glass as beach nourishment material  

E-Print Network (OSTI)

Since significant amounts of recycled glass may be used as a substitute of materials for beach nourishment in urban beaches, laboratory experiments were proposed to understand the performance characteristics of glass versus natural sand. A first...

Cruz Castro, Oscar

2003-01-01T23:59:59.000Z

192

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

SciTech Connect

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

193

3-D physical modeling of a complex salt canopy  

SciTech Connect

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

194

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

195

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

196

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

197

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

198

3-D Earth model more accurately pinpoints explosions  

NLE Websites -- All DOE Office Websites (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...

199

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

NLE Websites -- All DOE Office Websites (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,...

200

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

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


201

3D Printing Comes of Age | Department of Energy  

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

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...

202

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

NLE Websites -- All DOE Office Websites (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...

203

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...

204

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

205

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

206

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

207

Experimental Observation of an Extremely Dark Material Made By a Low-Density Nanotube Array  

Science Journals Connector (OSTI)

The Future Chips Constellation & Department of Physics, Applied Physics and Astronomy, and Department of Material Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 ... From the conservation of energy, we expect the total incident energy to be transmitted, reflected, or absorbed, that is, 1 = T + R + A. ... At higher energies, a broad absorption peak near 15 ev. is assocd. ...

Zu-Po Yang; Lijie Ci; James A. Bur; Shawn-Yu Lin; Pulickel M. Ajayan

2008-01-09T23:59:59.000Z

208

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

209

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

210

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

211

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

212

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

213

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.

214

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

215

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

216

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.

217

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.

218

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.

219

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

220

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

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


221

3D 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

222

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

223

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

224

Sandia National Laboratories: 3-D graphene architecture  

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

graphene architecture Three-Dimensional Graphene Architectures On July 29, 2013, in Capabilities, Materials Science, News, News & Events, Office of Science, Research & Capabilities...

225

High-Throughput 3D Homology Detection via NMR Resonance Assignment  

E-Print Network (OSTI)

-ray crystallography or Nuclear Magnetic Resonance (NMR), is very costly and time-consuming. Consequently protein and c is the maximum edge weight in an integer- weighted bipartite graph. Our experiments on real experimental data. Abbreviations used: NMR, nuclear magnetic resonance; RDC, residual dipolar coupling; 3D

Langmead, Christopher James

226

Qualitative properties of the ice-thickness in a 3D model  

Science Journals Connector (OSTI)

In this work we consider a 3D isothermal mathematical model for ice sheets flows over a horizontal bedrock. The model is derived from the mechanics and dynamics of ice sheets and experimental results carried out in Glaciology. The final formulation of ... Keywords: existence, finite speed of propagations, ice sheet dynamics, uniqueness, waiting time

S. N. Antontsev; H. B. De Oliveira

2008-03-01T23:59:59.000Z

227

26th INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES PERFORMANCE ANALYSIS OF A 3D SCRAMJET INTAKE  

E-Print Network (OSTI)

26th INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES PERFORMANCE ANALYSIS OF A 3D SCRAMJET INTAKE Birgit U. Reinartz CATS, RWTH Aachen University, Germany Keywords: scramjet, hypersonic, intake, CFD Abstract A combined experimental as well as computa- tional analysis of a complete scramjet

228

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

229

Laser shocks: A tool for experimental simulation of damage into materials  

SciTech Connect

High power laser irradiation of solids results in a strong shock wave propagation, driving very high amplitude pressure loadings with very short durations. These particular characteristics offer the possibility to study the behaviour of matter under extreme dynamic conditions in continuity with what is possible with the conventional generators of shock (launchers of projectiles, explosives). An advantage of laser shocks is a possible recovery of the shocked samples presenting the metallurgical effects of the shock in most cases. We introduce the principle of the laser shock generation, the characterization of these shocks, the principal mechanisms and effects associated with their propagation in the solids. We show how laser shocks can be a laboratory tool for simulating shock effects at ultra high strain rate, providing a high in information experimental layout for validation of damage modelling on an extended strain rate range compared to conventional shock generators. New data have been obtained with ultra short femtosecond range irradiation. Experimental data gathered through post mortem observation, time resolved velocity measurement are shown along with numerical associated simulations, showing the possibility to predict the damage behaviour of metallic targets under extreme strain rate up to 10{sup 8} s{sup -1}.

Boustie, M.; Cuq Lelandais, J. P.; Berthe, L.; Ecault, R. [Institut PPRIME, Departement Physique et Mecanique des Materiaux, CNRS-ENSMA-Universite de Poitiers, 1 av Clement Ader, 86961 FUTUROSCOPE Cedex (France); CEA-DAM Valduc, 21120 Is-sur-Tille (France); Laboratoire Procedes et Ingenierie en Mecanique et Materiaux (CNRS), Arts et Metiers ParisTech, 151 bd de l'Hopital, 75013 PARIS (France); Institut PPRIME, Departement Physique et Mecanique des Materiaux, CNRS-ENSMA-Universite de Poitiers, 1 av Clement Ader, 86961 FUTUROSCOPE Cedex (France)

2012-07-30T23:59:59.000Z

230

Experimental determination of the shipboard fire environment for simulated radioactive material packages  

SciTech Connect

A series of eight fire tests with simulated radioactive material shipping containers aboard the test ship Mayo Lykes, a break-bulk freighter, is described. The tests simulate three basic types of fires: engine room fires, cargo fires and open pool fires. Detailed results from the tests include temperatures, heat fluxes and air flows measured during the fires. The first examination of the results indicates that shipboard fires are not significantly different from fires encountered in land transport. 13 refs., 15 figs., 11 tabs.

Koski, J.A.; Bobbe, J.G.; Arviso, M. [and others

1997-03-01T23:59:59.000Z

231

Experimental study on cryogenic moisture uptake in polyurethane foam insulation material  

Science Journals Connector (OSTI)

Rigid foam is widely used to insulate cryogenic tanks, in particular for space launch vehicles due to its lightweight, mechanical strength and thermal-insulating performance. Up to now, little information is available on the intrusion of moisture into the material under cryogenic conditions, which will bring substantial additional weight for the space vehicles at lift-off. A cryogenic moisture uptake apparatus has been designed and fabricated to measure the amount of water uptake into the polyurethane foam. One side of the specimen is exposed to an environment with high humidity and ambient temperature, while the other with cryogenic temperature at approximately 78K. A total of 16 specimens were tested for up to 24h to explore the effects of the surface thermal protection layer, the foam thickness, exposed time, the butt joints, and the material density on water uptake of the foam. The results are constructive for the applications of the foam to the cryogenic insulation system in space launch vehicles.

X.B. Zhang; L. Yao; L.M. Qiu; Z.H. Gan; R.P. Yang; X.J. Ma; Z.H. Liu

2012-01-01T23:59:59.000Z

232

Combustion aerosols formed during burning of radioactively contaminated materials: Experimental results  

SciTech Connect

Safety assessments and environmental impact statements for nuclear fuel cycle facilities require an estimate of potential airborne releases. Radioactive aerosols generated by fires were investigated in experiments in which combustible solids and liquids were contaminated with radioactive materials and burned. Uranium in powder and liquid form was used to contaminate five fuel types: polychloroprene, polystyrene, polymethylmethacrylate, cellulose, and a mixture of 30% tributylphosphate (TBP) in kerosene. Heat flux, oxygen concentration, air flow, contaminant concentration, and type of ignition were varied in the experiments. The highest release (7.1 wt %) came from burning TBP/kerosene over contaminated nitric acid. Burning cellulose contaminated with uranyl nitrate hexahydrate liquid gave the lowest release (0.01 wt %). Rate of release and particle size distribution of airborne radioactive particles were highly dependent on the type of fuel burned.

Halverson, M.A.; Ballinger, M.Y.; Dennis, G.W.

1987-03-01T23:59:59.000Z

233

Experimental performances of a battery thermal management system using a phase change material  

Science Journals Connector (OSTI)

Abstract Li-ion batteries are leading candidates for mobility because electric vehicles (EV) are an environmentally friendly mean of transport. With age, Li-ion cells show a more resistive behavior leading to extra heat generation. Another kind of problem called thermal runway arises when the cell is too hot, what happens in case of overcharge or short circuit. In order to evaluate the effect of these defects at the whole battery scale, an air-cooled battery module was built and tested, using electrical heaters instead of real cells for safety reasons. A battery thermal management system based on a phase change material is developed in that study. This passive system is coupled with an active liquid cooling system in order to initialize the battery temperature at the melting of the PCM. This initialization, or PCM solidification, can be performed during a charge for example, in other words when the energy from the network is available.

Charles-Victor Hmery; Franck Pra; Jean-Franois Robin; Philippe Marty

2014-01-01T23:59:59.000Z

234

Automatic Reconstruction of Surfaces and Scalar Fields from 3D Scans1 2  

E-Print Network (OSTI)

dimensional (3D) points scan of its surface. Color, texture or some scalar material property of the physical) of a three-dimensional Delaunay Triangulation, its dual the three-dimensional Voronoi diagram, and dual uses with a more complex geometry, e.g. objects with holes, handles, pockets, cannot be scanned in a single pass

Xu, Guo-liang

235

Science Highlight July 2011 Better Batteries through Nanoscale 3D Chemical Imaging  

E-Print Network (OSTI)

to hierarchical structures found in energy materials such as battery electrodes, fuel cells, and catalytic systems Science Highlight ­ July 2011 Better Batteries through Nanoscale 3D Chemical Imaging Concerns battery technology. Although Li-ion batteries, crucial in the boom of portable electronics, stand

Wechsler, Risa H.

236

Linear Scaling 3D Fragment Method for Large-scale Electronic Structure Calculations  

E-Print Network (OSTI)

Linear Scaling 3D Fragment Method for Large-scale Electronic Structure Calculations Lin-Wang Wang) allocation time in the materials science category [1]. DFT codes can be used to calculate the electronic theory (DFT) calculations for large systems. This method cancels out the artificial boundary effects

237

Materials  

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

2 MAG LAB REPORTS Volume 18 No. 1 CONDENSED MATTER SCIENCE Technique development, graphene, magnetism & magnetic materials, topological insulators, quantum fl uids & solids,...

238

Determination of the positions and orientations of concentrated rod-like colloids from 3D microscopy data  

E-Print Network (OSTI)

Confocal microscopy in combination with real-space particle tracking has proven to be a powerful tool in scientific fields such as soft matter physics, materials science and cell biology. However, 3D tracking of anisotropic particles in concentrated phases remains not as optimized compared to algorithms for spherical particles. To address this problem, we developed a new particle-fitting algorithm that can extract the positions and orientations of fluorescent rod-like particles from three dimensional confocal microscopy data stacks, even when the fluorescent signals of the particles overlap considerably. We demonstrate that our algorithm correctly identifies all five coordinates of uniaxial particles in both a concentrated disordered phase and a liquid-crystalline smectic-B phase. Apart from confocal microscopy images, we also demonstrate that the algorithm can be used to identify nanorods in 3D electron tomography reconstructions. Lastly, we determined the accuracy of the algorithm using both simulated and experimental confocal microscopy data-stacks of diffusing silica rods in a dilute suspension. This novel particle-fitting algorithm allows for the study of structure and dynamics in both dilute and dense liquid-crystalline phases (such as nematic, smectic and crystalline phases) as well as the study of the glass transition of rod-like particles in three dimensions on the single particle level.

T. H. Besseling; M. Hermes; A. Kuijk; B. de Nijs; T. -S. Deng; M. Dijkstra; A. Imhof; A. van Blaaderen

2014-06-19T23:59:59.000Z

239

A cold model experimental study on the flow characteristics of bed material in a fluidized bed bottom ash cooler in a CFB boiler  

Science Journals Connector (OSTI)

A cold model experimental study on the flowing characteristics of bed material between a fluidized bed ash cooler and a furnace of CFB boiler were discussed in this paper. The research results showed that flowing...

Xiaofeng Lu; Yourong Li

2000-12-01T23:59:59.000Z

240

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

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

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

242

A new assessment of RELAP5-3D using a General Electric level swell problem  

SciTech Connect

The RELAP5-3D (version bt) computer program was used to assess a GE level swell experiment. The primary goal of the new assessment models was to faithfully represent the experimental facility and instrumentation. In developing the new models, a non-physical representation of the vessel heads in a previous assessment was found. This distortion resulted in predictions that closely matched the experimental data, but were in error. The new assessment also highlighted an instability in the calculation of interfacial drag. To explore this issue, analyses were performed using three different interfacial drag correlations appropriate for large diameter pipes and/or vessels. The results of this study show that the Kataoka-Ishii correlation, which is currently used in RELAP5-3D, compares most favorably with the experimental data. Additionally, a numerical instability was uncovered with the analysis performed using the Gardner correlation and was traced to the calculation of bubble diameter in the bubbly flow regime.

Aumiller, D.L.; Tomlinson, E.T.; Clarke, W.G.

2000-09-01T23:59:59.000Z

243

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

E-Print Network (OSTI)

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

Bruno, Luca

2015-01-01T23:59:59.000Z

244

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

245

Modeling Three-Dimensional Shock Initiation of PBX 9501 in ALE3D  

SciTech Connect

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

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

2008-07-08T23:59:59.000Z

246

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

247

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

248

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

249

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization  

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

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

250

Just Plain Cool, the 3D Printed Shelby Cobra  

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

251

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

NLE Websites -- All DOE Office Websites (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,...

252

Making 3D Printed Christmas Ornaments | GE Global Research  

NLE Websites -- All DOE Office Websites (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...

253

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

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

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

254

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

255

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

NLE Websites -- All DOE Office Websites (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 *...

256

Materials science: Radicals promote magnetic gel assembly  

Science Journals Connector (OSTI)

... are assembled from smaller components, may thus be better suited for replicating biological complexity. 3D printing, in which the direct deposition of material creates precise 3D structures, embodies this strategy ... material creates precise 3D structures, embodies this strategy. Recent advances in technology have allowed 3D printing of tissues through the deposition of cellular aggregates or cell-laden materials. However, these ...

Christopher B. Rodell; Jason A. Burdick

2014-10-29T23:59:59.000Z

257

New solutions in 3D gravity  

Science Journals Connector (OSTI)

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

Yuri N. Obukhov

2003-12-19T23:59:59.000Z

258

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

259

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

260

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

262

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.

263

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

264

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

265

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

266

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

267

Materials  

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

Materials Materials and methods are available as supplementary materials on Science Online. 16. W. Benz, A. G. W. Cameron, H. J. Melosh, Icarus 81, 113 (1989). 17. S. L. Thompson, H. S. Lauson, Technical Rep. SC-RR-710714, Sandia Nat. Labs (1972). 18. H. J. Melosh, Meteorit. Planet. Sci. 42, 2079 (2007). 19. S. Ida, R. M. Canup, G. R. Stewart, Nature 389, 353 (1997). 20. E. Kokubo, J. Makino, S. Ida, Icarus 148, 419 (2000). 21. M. M. M. Meier, A. Reufer, W. Benz, R. Wieler, Annual Meeting of the Meteoritical Society LXXIV, abstr. 5039 (2011). 22. C. B. Agnor, R. M. Canup, H. F. Levison, Icarus 142, 219 (1999). 23. D. P. O'Brien, A. Morbidelli, H. F. Levison, Icarus 184, 39 (2006). 24. R. M. Canup, Science 307, 546 (2005). 25. J. J. Salmon, R. M. Canup, Lunar Planet. Sci. XLIII, 2540 (2012). Acknowledgments: SPH simulation data are contained in tables S2 to S5 of the supplementary materials. Financial support

268

Reynolds-stress model prediction of 3-D duct flows  

E-Print Network (OSTI)

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

Gerolymos, G A

2014-01-01T23:59:59.000Z

269

3D printing rises to the occasion | ornl.gov  

NLE Websites -- All DOE Office Websites (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

270

A parallel algorithm for 3D dislocation dynamics  

SciTech Connect

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

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

2006-12-10T23:59:59.000Z

271

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

272

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

NLE Websites -- All DOE Office Websites (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.

273

Using a magnetite/thermoplastic composite in 3D printing of direct replacements for commercially available flow sensors  

Science Journals Connector (OSTI)

Flow sensing is an essential technique required for a wide range of application environments ranging from liquid dispensing to utility monitoring. A number of different methodologies and deployment strategies have been devised to cover the diverse range of potential application areas. The ability to easily create new bespoke sensors for new applications is therefore of natural interest. Fused deposition modelling is a 3D printing technology based upon the fabrication of 3D structures in a layer-by-layer fashion using extruded strands of molten thermoplastic. The technology was developed in the late 1980s but has only recently come to more wide-scale attention outside of specialist applications and rapid prototyping due to the advent of low-cost 3D printing platforms such as the RepRap. Due to the relatively low-cost of the printers and feedstock materials, these printers are ideal candidates for wide-scale installation as localized manufacturing platforms to quickly produce replacement parts when components fail. One of the current limitations with the technology is the availability of functional printing materials to facilitate production of complex functional 3D objects and devices beyond mere concept prototypes. This paper presents the formulation of a simple magnetite nanoparticle-loaded thermoplastic composite and its incorporation into a 3D printed flow-sensor in order to mimic the function of a commercially available flow-sensing device. Using the multi-material printing capability of the 3D printer allows a much smaller amount of functional material to be used in comparison to the commercial flow sensor by only placing the material where it is specifically required. Analysis of the printed sensor also revealed a much more linear response to increasing flow rate of water showing that 3D printed devices have the potential to at least perform as well as a conventionally produced sensor.

S J Leigh; C P Purssell; D R Billson; D A Hutchins

2014-01-01T23:59:59.000Z

274

Real time 3D and heterogeneous data fusion  

SciTech Connect

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

275

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

276

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

277

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

278

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

279

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

280

Comparison of 2D and 3D gamma analyses  

SciTech Connect

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

SciTech Connect

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

282

Software: DIF3D - Nuclear Engineering Division (Argonne)  

NLE Websites -- All DOE Office Websites (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).

283

3-D Earth model more accurately pinpoints explosions  

NLE Websites -- All DOE Office Websites (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.

284

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

285

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

286

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...

287

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

288

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

289

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....

290

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

291

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

292

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

293

3-D Earth model more accurately pinpoints explosions  

NLE Websites -- All DOE Office Websites (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...

294

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

295

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

296

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"

297

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

298

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

299

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

300

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

Note: This page contains sample records for the topic "materials 3d experimental" 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 Tracking at the Nanoscale | The Ames Laboratory  

NLE Websites -- All DOE Office Websites (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...

302

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

303

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

NLE Websites -- All DOE Office Websites (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...

304

Observing Warm Clouds in 3D Using ARM Scanning Cloud  

NLE Websites -- All DOE Office Websites (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...

305

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

306

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

307

3-D Earth model more accurately pinpoints explosions  

NLE Websites -- All DOE Office Websites (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.

308

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

309

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

310

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

311

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

312

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

313

Reactive Flow Modeling of Liquid Explosives via ALE3D/Cheetah Simulations  

SciTech Connect

We carried out reactive flow simulations of liquid explosives such as nitromethane using the hydrodynamic code ALE3D coupled with equations of state and reaction kinetics modeled by the thermochemical code Cheetah. The simulation set-up was chosen to mimic cylinder experiments. For pure unconfined nitromethane we find that the failure diameter and detonation velocity dependence on charge diameter are in agreement with available experimental results. Such simulations are likely to be useful for determining detonability and failure behavior for a wide range of experimental conditions and explosive compounds.

Kuo, I W; Bastea, S; Fried, L E

2010-03-10T23:59:59.000Z

314

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

315

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

316

Toward single cell traction microscopy within 3D collagen matrices  

SciTech Connect

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

317

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

318

A reduced-coordinate approach to modeling RNA 3-D structures  

SciTech Connect

With the realization of RNA molecules capable of performing very specific functions (e.g., catalytic RNAs and RNAs that bind ligand with affinity and specificity of an anti-body) and contrary to the traditional view that structure of RNA molecules being functionally passive, it has become clear that studying the 3-dimensional (3-D) folding of RNA molecules is a very important task. In the absence of sufficient number of experimentally determined RNA structures available up-to-date, folding of RNA structures computationally provides an alternative approach in studying the 3-D structure of RNA molecules. We have developed a computational approach for folding RNA 3-D structures. The method is conceptually simple and general. It consists of two major components. The first being the arrangement of all helices in space. Once the helices are positioned and oriented in space, structures of the connecting loops are modeled and inserted between the helices. Any number of structural constraints derived either experimentally or theoretically can be used to guide the folding processes. A conformational sampling approach is developed with structural equilibration using the Metropolis Monte Carlo simulation. The lengths of various loop sizes (ranging from 1 base to 7 bases) are calculated based on a set of RNA structures deposited in PDB as well as a set of loop structures constructed using our method. The validity of using the averaged loop lengths of the connecting loops as distance constraints for arranging the helices in space is studied.

Tung, Chang-Shung

1997-09-01T23:59:59.000Z

319

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

320

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

SciTech Connect

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

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


321

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.

322

Eliciting a human understandable model of ice adhesion strength for rotor blade leading edge materials from uncertain experimental data  

E-Print Network (OSTI)

on the thermal conductivity of isotropic materials that protect the leading edge of the blade from erosion. For this reason, electro-thermal de-icing is not ideal for new high erosion resistant polymer based leading edge protec- tion materials because they have lower thermal conductivity than isotropic materials. Due

Granada, Universidad de

323

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

324

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

325

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

326

Advanced 3D Sensing and Visualization System for Unattended Monitoring  

SciTech Connect

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

327

PRECISE VIBRATION-BASED DAMAGE LOCALIZATION IN 3D STRUCTURES CONSISTING OF 1D ELEMENTS: SINGLE VS MULTIPLE  

E-Print Network (OSTI)

and the experimental setup: The force excitation (Point X) and the two vibration acceleration measurement positionsPRECISE VIBRATION-BASED DAMAGE LOCALIZATION IN 3D STRUCTURES CONSISTING OF 1D ELEMENTS: SINGLE VS MULTIPLE RESPONSE MEASUREMENTS Christos S. Sakaris, John S. Sakellariou and Spilios D. Fassois Stochastic

Boyer, Edmond

328

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

329

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

330

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

331

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

NLE Websites -- All DOE Office Websites (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

332

6 - Photopolymerization-based additive manufacturing for the development of 3D porous scaffolds  

Science Journals Connector (OSTI)

Abstract: Additive manufacturing technologies (AMT), including 3D printing, have undergone considerable development during the last decade. The most recently observed tendency is a rapid spread of AMTs application from specific industrial tasks and research laboratories to wide aspects of our everyday life. This chapter discusses the recent biomedical applications of \\{AMTs\\} in regenerative medicine and tissue engineering. Particular focus is made on fabrication of 3D scaffolds by lithography-based techniques, utilizing photopolymerizable material formulations. Light-activation provides spatial and temporal control of the polymerization process. The portfolio of photosensitive biopolymers is continuously expanding. A section of this chapter is dedicated to the development of natural and synthetic biophotopolymers. Finally, recent advances in lithography-based AMTs for the fabrication of scaffolds are reviewed.

B. Husr; M. Hatzenbichler; V. Mironov; R. Liska; J. Stampfl; A. Ovsianikov

2014-01-01T23:59:59.000Z

333

Utilizing in-situ Resources and 3D printing Structures for a manned Mars mission  

Science Journals Connector (OSTI)

Abstract This paper presents a manned Mars mission, which is based on the use of in-situ resources for the fabrication of structures. First, it provides an overview of the two-phase mission. In phase one, robotic construction units prepare a functional base for phase-two human habitation. Then, it describes a set of prospective structures that can be created utilizing additive manufacturing (commonly known as 3D printing) techniques and in situ materials. Next, the technological advancements required to allow this type of mission are considered and their feasibility is discussed. Specific focus is given to the topics of basalt 3D printing and the maintenance of the pressure environment. The process of the construction of the base is also discussed. Finally the proposed approach is analyzed through comparison to prior missions, before concluding.

Benjamin Kading; Jeremy Straub

2014-01-01T23:59:59.000Z

334

A heightened radiosensitivity of stromal fibroblasts in 3D matrix  

NLE Websites -- All DOE Office Websites (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

335

Virtual Frog Dissection: Interactive 3D Graphics Via the Web  

NLE Websites -- All DOE Office Websites (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

336

3D Visualization of Water Transport in Ferns  

NLE Websites -- All DOE Office Websites (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?

337

A 3-D Link between Antibiotic Resistance and Brain Disease  

NLE Websites -- All DOE Office Websites (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

338

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

339

Building Energy Software Tools Directory: Look3D  

NLE Websites -- All DOE Office Websites (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

340

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

NLE Websites -- All DOE Office Websites (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,

Note: This page contains sample records for the topic "materials 3d experimental" 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

3D Magnetotelluric characterization of the COSO GeothermalField  

SciTech Connect

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

342

RELAP5-3D Code Validation for RBMK Phenomena  

SciTech Connect

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

343

RELAP5-3D code validation for RBMK phenomena  

SciTech Connect

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

344

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

345

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

346

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

347

STELLOPT Modeling of the 3D Diagnostic Response in ITER  

SciTech Connect

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

348

Key experimental information on intermediate-range atomic structures in amorphous Ge2Sb2Te5 phase change material  

E-Print Network (OSTI)

.1063/1.3657139 Nature of phase transitions in crystalline and amorphous GeTe-Sb2Te3 phase change materials J. Chem. Phys on intermediate-range atomic structures in amorphous Ge2Sb2Te5 phase change material Shinya Hosokawa,1,2,a) Wolf change material Shinya Hosokawa, Wolf-Christian Pilgrim, Astrid Höhle, Daniel Szubrin, Nathalie Boudet

Paris-Sud XI, Université de

349

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

350

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

351

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

352

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

353

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

354

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

355

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

356

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

357

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

358

Experimental study of the effect of electromagnetic microwave radiation on parts made of high-energy polymer materials  

Science Journals Connector (OSTI)

Results of experimental measurements of Youngs modulus, burning rate, and specific heat of condensed high-energy polymer compositions (solid propellants) subjected to microwave radiation are reported. Experim...

L. L. Khimenko; A. P. Rybakov; N. A. Rybakov

2014-07-01T23:59:59.000Z

359

Three-dimensional Thermal and Airflow (3D-TAF) Model of a Dome-covered  

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

Three-dimensional Thermal and Airflow (3D-TAF) Model of a Dome-covered Three-dimensional Thermal and Airflow (3D-TAF) Model of a Dome-covered House in Canada Speaker(s): Yaolin Lin Date: October 6, 2009 - 12:00pm Location: 90-3122 A dome-covered house is an example of sustainable design that draws from biological forms in nature. A three-dimensional thermal and air flow (3D-TAF) model was developed to estimate the energy needs of a dome-covered house. This model has two components: a thermal model to calculate the temperature; and an air flow model to find the velocities, which are needed to estimate the surface convection. The two models are solved iteratively at every time step until they converge. I will present the numerical methods for solving the mathematical models, and compared the results with other simulated and experimental results from similar structures. I will

360

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

Note: This page contains sample records for the topic "materials 3d experimental" 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 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

362

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.

363

Extra Dimensions: 3D and Time in PDF Documentation  

SciTech Connect

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

364

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

365

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

366

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

367

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

368

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

369

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

370

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

371

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

372

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

373

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

374

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

375

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

376

RELAP5-3D Developer Guidelines and Programming Practices  

SciTech Connect

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

377

Trial operation of material protection, control, and accountability systems at two active nuclear material handling sites within the All-Russian Institute of Experimental Physics (VNIIEF)  

SciTech Connect

This paper discusses Russian Federal Nuclear Center (RFNC)-VNIIEF activities in the area of nuclear material protection, control, and accounting (MPC and A) procedures enhancement. The goal of such activities is the development of an automated systems for MPC and A at two of the active VNIIEF research sites: a research (reactor) site and a nuclear material production facility. The activities for MPC and A system enhancement at both sites are performed in the framework of a VNIIEF-Los Alamos National Laboratory contract with participation from Sandia National Laboratories, Lawrence Livermore National Laboratory, Brookhaven National Laboratory, Oak Ridge National Laboratory, Pacific Northwest National Laboratory, and PANTEX Plant in accordance with Russian programs supported by MinAtom. The American specialists took part in searching for possible improvement of technical solutions, ordering equipment, and delivering and testing the equipment that was provided by the Americans.

Skripka, G.; Vatulin, V.; Yuferev, V. [VNIIEF, Sarov (Russian Federation)] [and others

1997-11-01T23:59:59.000Z

378

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

379

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

380

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

382

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

383

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

NLE Websites -- All DOE Office Websites (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...

384

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

385

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

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

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

386

Carbon aerogel with 3-D continuous skeleton and mesopore structure for lithium-ion batteries application  

Science Journals Connector (OSTI)

Abstract Carbon aerogel (CA) with 3-D continuous skeleton and mesopore structure was prepared via a microemulsion-templated solgel polymerization method and then used as the anode materials of lithium-ion batteries. It was found that the reversible specific capacity of the as-prepared \\{CAs\\} could stay at about 470mAhg?1 for 80 cycles, much higher than the theoretical capacity of commercial graphite (372mAhg?1). In addition, CA also showed a better rate capacity compared to commercial graphite. The good electrochemical properties could be ascribed to the following three factors: (1) the large BET surface area of 620m2g?1, which can provide more lithium ion insertion sites, (2) 3-D continuous skeleton of CAs, which favors the transport of the electrons, (3) 3-D continuous mesopore structure with narrow mesopore size distribution and high mesopore ratio of 87.3%, which facilitates the diffusion and transport of the electrolyte and lithium ions.

Xiaoqing Yang; Hong Huang; Guoqing Zhang; Xinxi Li; Dingcai Wu; Ruowen Fu

2015-01-01T23:59:59.000Z

387

Materials - Micro heat exchangers ... | ornl.gov  

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

Materials - Micro heat exchangers ... Heat exchanger components fabricated with 3-D printing and analyzed with neutron imaging create a world of opportunities for electronic...

388

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

SciTech Connect

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

389

3D neutronic/thermal-hydraulic coupled analysis of MYRRHA  

SciTech Connect

The current tendency in multiphysics calculations applied to reactor physics is the use of already validated computer codes, coupled by means of an iterative approach. In this paper such an approach is explained concerning neutronics and thermal-hydraulics coupled analysis with MCNPX and COBRA-IV codes using a driver program and file exchange between codes. MCNPX provides the neutronic analysis of heterogeneous nuclear systems, both in critical and subcritical states, while COBRA-IV is a subchannel code that can be used for rod bundles or core thermal-hydraulics analysis. In our model, the MCNP temperature dependence of nuclear data is handled via pseudo-material approach, mixing pre-generated cross section data set to obtain the material with the desired cross section temperature. On the other hand, COBRA-IV has been updated to allow for the simulation of liquid metal cooled reactors. The coupled computational tool can be applied to any geometry and coolant, as it is the case of single fuel assembly, at pin-by-pin level, or full core simulation with the average pin of each fuel-assembly. The coupling tool has been applied to the critical core layout of the SCK-CEN MYRRHA concept, an experimental LBE cooled fast reactor presently in engineering design stage. (authors)

Vazquez, M.; Martin-Fuertes, F. [CIEMAT, Avda. Complutense 40, 28040 Madrid (Spain)

2012-07-01T23:59:59.000Z

390

3D Corporate Tourism in the Marine Sciences: Application-Oriented Problem Solving in Marine and Coastal Ecosystems  

E-Print Network (OSTI)

3D corporate tourism in the marine sciences is a solution-based approach to innovation in science, engineering and design. Corporate international scientists, engineers and designers work with local experts in Malaysian marine and coastal environments: they jointly discover, develop and design complex materials and designs inspired by nature directly on site (e.g. at the UKM Marine Ecosystem Research Centre EKOMAR and Malaysian Marine Parks) and construct initial biomimetic prototypes and novel designs. Thereby, new links, networks and collaborations are established between communities of thinkers in different countries. 3D tourism aims at mapping new frontiers in emerging engineering and design fields. This provides a novel way to foster and promote innovative thinking in the sciences, and considers the need for synergy and collaboration between marine sciences, engineering and design rather than segmentation and isolation. With the concept of 3D corporate tourism the potential of Malaysian marine ecosystems...

Gebeshuber, Ille Christine; Esichaikul, Ranee; Macqueen, Mark; Majlis, Burhanuddin Yeop

2010-01-01T23:59:59.000Z

391

2D and 3D percolation in high-temperature superconductors  

Science Journals Connector (OSTI)

A quantitative model is presented for the high critical current densities (Jc) supported by superconducting materials with uniaxial alignment, such as c-axis textured Bi-Sr-Ca-Cu-O tapes. Current follows percolative paths across small-angle grain boundaries. Because jc is low for intragranular conduction parallel to the c axis, the 3D flow required for percolation is produced by conduction perpendicular to the c axis in tilted grains. For optimized microstructures, Jc ranging from 3 to 30 % of the intragranular value is predicted for percolation across small-angle grain boundaries with misorientations below 10 and 20, respectively. 1996 The American Physical Society.

E. D. Specht; A. Goyal; D. M. Kroeger

1996-02-01T23:59:59.000Z

392

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

393

3-D MAPPING TECHNOLOGIES FOR HIGH LEVEL WASTE TANKS  

SciTech Connect

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

394

NORTH HILL CREEK 3-D SEISMIC EXPLORATION PROJECT  

SciTech Connect

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

395

Development and characterization of 3D, nano-confined multicellular constructs for advanced biohybrid devices.  

SciTech Connect

This is the final report for the President Harry S. Truman Fellowship in National Security Science and Engineering (LDRD project 130813) awarded to Dr. Bryan Kaehr from 2008-2011. Biological chemistries, cells, and integrated systems (e.g., organisms, ecologies, etc.) offer important lessons for the design of synthetic strategies and materials. The desire to both understand and ultimately improve upon biological processes has been a driving force for considerable scientific efforts worldwide. However, to impart the useful properties of biological systems into modern devices and materials requires new ideas and technologies. The research herein addresses aspects of these issues through the development of (1) a rapid-prototyping methodology to build 3D bio-interfaces and catalytic architectures, (2) a quantitative method to measure cell/material mechanical interactions in situ and at the microscale, and (3) a breakthrough approach to generate functional biocomposites from bacteria and cultured cells.

Kaehr, Bryan James

2011-09-01T23:59:59.000Z

396

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

397

Modeling The Shock Initiation of PBX-9501 in ALE3D  

SciTech Connect

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

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

2008-07-01T23:59:59.000Z

398

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

399

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

400

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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

402

Widespread 3D seismic survey covers mature field in Gabon  

SciTech Connect

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

403

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

404

Multicomponent 3-D characterization of a coalbed methane reservoir  

SciTech Connect

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

405

Beam Optics Analysis - An Advanced 3D Trajectory Code  

SciTech Connect

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

406

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

407

Experimental Studies of Ilmenite as a Weighting Material in Oil-based Drilling Fluids for HPHT Operations  

E-Print Network (OSTI)

Ilmenite (FeTiO_(3)), with a mean particle size of 30 - 45 m, was first introduced into the oil industry as weighting material in 1976. However, its use was limited mainly because of its abrasiveness to drilling equipment. Recently, a superfine...

Xiao, Jie

2013-12-06T23:59:59.000Z

408

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

409

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

410

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

411

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.

412

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

413

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

414

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

415

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

416

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

417

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

418

Robust Hypothesis Tests for Detecting Statistical Evidence of 2D and 3D Interactions in Single-Molecule Measurements  

E-Print Network (OSTI)

A variety of experimental techniques have improved the 2D and 3D spatial resolution that can be extracted from \\emph{in vivo} single-molecule measurements. This enables researchers to quantitatively infer the magnitude and directionality of forces experienced by biomolecules in their native cellular environments. Situations where such forces are biologically relevant range from mitosis to directed transport of protein cargo along cytoskeletal structures. Models commonly applied to quantify single-molecule dynamics assume that effective forces and velocity in the $x,y$ (or $x,y,z$) directions are statistically independent, but this assumption is physically unrealistic in many situations. We present a hypothesis testing approach capable of determining if there is evidence of statistical dependence between positional coordinates in experimentally measured trajectories; if the hypothesis of independence between spatial coordinates is rejected, then a new model accounting for 2D (3D) interactions should be considered to more faithfully represent the underlying experimental kinetics. The technique is robust in the sense that 2D (3D) interactions can be detected via statistical hypothesis testing even if there is substantial inconsistency between the physical particle's actual noise sources and the simplified model's assumed noise structure. For example, 2D (3D) interactions can be reliably detected even if the researcher assumes normal diffusion, but the experimental data experiences "anomalous diffusion" and/or is subjected to a measurement noise characterized by a distribution differing from that assumed by the fitted model. The approach is demonstrated on control simulations and on experimental data (IFT88 directed transport in the primary cilium).

Christopher P. Calderon; Lucien E. Weiss; W. E. Moerner

2013-12-24T23:59:59.000Z

419

3D Relationships Between Sills And Their Feeders- Evidence From The Golden  

Open Energy Info (EERE)

Relationships Between Sills And Their Feeders- Evidence From The Golden Relationships Between Sills And Their Feeders- Evidence From The Golden Valley Sill Complex (Karoo Basin) And Experimental Modelling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3D Relationships Between Sills And Their Feeders- Evidence From The Golden Valley Sill Complex (Karoo Basin) And Experimental Modelling Details Activities (0) Areas (0) Regions (0) Abstract: In this paper, we address sill emplacement mechanisms through the three-dimensional relationships between sills and their potential feeders (dykes or sills) in the well-exposed Golden Valley Sill Complex (GVSC), Karoo Basin, South Africa. New field observations combined with existing chemical analyses show that: 1) the contacts between sills in the GVSC are not sill-feeding-sill relationships, and 2) there are, however, close

420

3D tomodosimetry using long scintillating fibers: A feasibility study  

SciTech Connect

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

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


421

3D Corporate Tourism: A Concept for Innovation in Nanomaterials Engineering  

E-Print Network (OSTI)

Nature's materials are complex, multifunctional, hierarchical and responsive and in most instances functionality on the nanoscale is combined with performance on the macroscale. Materials engineers have just started to produce complex nanomaterials. Biomimicry and biomimetics deal with knowledge transfer from nature to technology. Inspired by the 'Biomimicry and Design Workshops' and the 'Biomimicry Innovation Method' by the US based Biomimicry Guild, '3D Corporate Tourism', a solution based approach to innovation in nanomaterials research, is proposed. The three main pillars of this integrated concept are discover, develop and design. Biologists, research and development engineers as well as designers jointly work in an environment with high inspirational potential and construct first prototypes and designs on site. This joint approach yields new links, networks and collaborations between communities of thinkers in different countries in order to stimulate and enhance creative and application oriented proble...

Gebeshuber, I C

2010-01-01T23:59:59.000Z

422

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.

423

3-D HYDRODYNAMIC MODELING IN A GEOSPATIAL FRAMEWORK  

SciTech Connect

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

424

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

425

Virtual reality 3D headset based on DMD light modulators  

SciTech Connect

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

426

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

427

Mechanism-based Representative Volume Elements (RVEs) for Predicting Property Degradations in Multiphase Materials  

SciTech Connect

Quantitative understanding of the evolving thermal-mechanical properties of a multi-phase material hinges upon the availability of quantitative statistically representative microstructure descriptions. Questions then arise as to whether a two-dimensional (2D) or a three-dimensional (3D) representative volume element (RVE) should be considered as the statistically representative microstructure. Although 3D models are more representative than 2D models in general, they are usually computationally expensive and difficult to be reconstructed. In this paper, we evaluate the accuracy of a 2D RVE in predicting the property degradations induced by different degradation mechanisms with the multiphase solid oxide fuel cell (SOFC) anode material as an example. Both 2D and 3D microstructure RVEs of the anodes are adopted to quantify the effects of two different degradation mechanisms: humidity-induced electrochemical degradation and phosphorus poisoning induced structural degradation. The predictions of the 2D model are then compared with the available experimental measurements and the results from the 3D model. It is found that the 2D model, limited by its inability of reproducing the realistic electrical percolation, is unable to accurately predict the degradation of thermo-electrical properties. On the other hand, for the phosphorus poisoning induced structural degradation, both 2D and 3D microstructures yield similar results, indicating that the 2D model is capable of providing computationally efficient yet accurate results for studying the structural degradation within the anodes.

Xu, Wei; Sun, Xin; Li, Dongsheng; Ryu, Seun; Khaleel, Mohammad A.

2013-02-01T23:59:59.000Z

428

Data:03cbd52c-3d78-47b2-8a36-0a9e3d1ef1dc | Open Energy Information  

Open Energy Info (EERE)

2c-3d78-47b2-8a36-0a9e3d1ef1dc 2c-3d78-47b2-8a36-0a9e3d1ef1dc No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Atlantic City Electric Co Effective date: 2013/02/01 End date if known: Rate name: SPL Experimental Light Emitting Diode Shoe Box 250 W Sector: Lighting Description: The following rates shall be applied to the kWh Usage for the particular light type and size to determine the monthly charge per light. Source or reference: http://www.atlanticcityelectric.com/_res/documents/NJTariffSectionIV.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months):

429

Data:60d9c3d3-d1b0-49b1-aa29-0ad88f8a260c | Open Energy Information  

Open Energy Info (EERE)

c3d3-d1b0-49b1-aa29-0ad88f8a260c c3d3-d1b0-49b1-aa29-0ad88f8a260c No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Atlantic City Electric Co Effective date: 2013/02/01 End date if known: Rate name: SPL Experimental Light Emitting Diode Post Top with Ribs 70 W Sector: Lighting Description: The following rates shall be applied to the kWh Usage for the particular light type and size to determine the monthly charge per light. Source or reference: http://www.atlanticcityelectric.com/_res/documents/NJTariffSectionIV.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months):

430

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

NLE Websites -- All DOE Office Websites (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

431

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

432

Experimental tests of irradiation-anneal-reirradiation effects on mechanical properties of RPV plate and weld materials  

SciTech Connect

The Charpy-V (C{sub V}) notch ductility and tension test properties of three reactor pressure vessel (RPV) steel materials were determined for the 288{degree}C (550{degree}F) irradiated (I), 288{degree}C (550{degree}F) irradiated + 454{degree}C (850{degree}F)-168 h postirradiation annealed (IA), and 288{degree}C (550{degree}F) reirradiated (IAR) conditions. Total fluences of the I condition and the IAR condition were, respectively, 3.33 {times} 10{sup 19} n/cm{sup 2} and 4.18 {times} 10{sup 19} n/cm{sup 2}, E > 1 MeV. The irradiation portion of the IAR condition represents an incremental fluence increase of 1. 05 {times} 10{sup 19} n/cm{sup 2}, E > 1 MeV, over the I-condition fluence. The materials (specimens) were supplied by the Yankee Atomic Electric Company and represented high and low nickel content plates and a high nickel, high copper content weld deposit prototypical of the Yankee-Rowe reactor vessel. The promise of the IAR method for extending the fluence tolerance of radiation-sensitive steels and welds is clearly shown by the results. The annealing treatment produced full C{sub V} upper shelf recovery and full or nearly full recovery in the C{sub V} 41 J (30 ft-lb) transition temperature. The C{sub V} transition temperature increases produced by the reirradiation exposure were 22% to 43% of the increase produced by the first cycle irradiation exposure. A somewhat greater radiation embrittlement sensitivity and a somewhat greater reirradiation embrittlement sensitivity was exhibited by the low nickel content plate than the high nickel content plate. Its high phosphorus content is believed to be responsible. The IAR-condition properties of the surface vs. interior regions of the low nickel content plate are also compared.

Hawthorne, J.R. [Materials Engineering Associates, Inc., Lanham, MD (United States)

1996-01-01T23:59:59.000Z

433

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

434

AUTOMATED, HIGHLY ACCURATE VERIFICATION OF RELAP5-3D  

SciTech Connect

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

435

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

436

ASIC for High Rate 3D Position Sensitive Detectors  

SciTech Connect

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

437

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

438

Theoretical and Experimental Thermal Performance Analysis of Building Shell Components Containing Blown Fiber Glass Insulation Enhanced with Phase Change Material (PCM)  

SciTech Connect

Different types of Phase Change Materials (PCMs) have been tested as dynamic components in buildings during the last 4 decades. Most historical studies have found that PCMs enhance building energy performance. Some PCM-enhanced building materials, like PCM-gypsum boards or PCM-impregnated concretes have already found their limited applications in different countries. Today, continued improvements in building envelope technologies suggest that throughout Southern and Central US climates, residences may soon be routinely constructed with PCM in order to maximize insulation effectiveness and maintain low heating and cooling loads. The proposed paper presents experimental and numerical results from thermal performance studies. These studies focus on blown fiber glass insulation modified with a novel spray-applied microencapsulated PCM. Experimental results are reported for both laboratory-scale and full-size building elements tested in the field. In order to confirm theoretical predictions, PCM enhanced fiber glass insulation was evaluated in a guarded hot box facility to demonstrate heat flow reductions when one side of a test wall is subjected to a temperature increase. The laboratory work showed reductions in heat flow of 30% due to the presence of approximately 20 wt % PCM in the insulation. Field testing of residential attics insulated with blown fiber glass and PCM was completed in Oak Ridge, Tennessee. Experimental work was followed by detailed whole building EnergyPlus simulations in order to generate energy performance data for different US climates. In addition, a series of numerical simulations and field experiments demonstrated a potential for application of a novel PCM fiber glass insulation as enabling technology to be utilized during the attic thermal renovations.

Miller, William A [ORNL] [ORNL; Kosny, Jan [ORNL] [ORNL; Yarbrough, David W [ORNL] [ORNL; Childs, Phillip W [ORNL] [ORNL; Shrestha, Som S [ORNL] [ORNL; Atchley, Jerald Allen [ORNL] [ORNL; Bianchi, Marcus V [ORNL] [ORNL; Smith, John B [ORNL] [ORNL; Fellinger, Thomas [ORNL] [ORNL; Kossecka, Elizabeth [Institute of Fundamental Technological Research, Polish Academy of Sciences] [Institute of Fundamental Technological Research, Polish Academy of Sciences; Lee, Edwin S [ORNL] [ORNL

2010-01-01T23:59:59.000Z

439

A decoupled approach for NOxN2O 3-D CFD modeling in CFB plants  

Science Journals Connector (OSTI)

Abstract In this study, a 3D CFD model for the formation of \\{NOx\\} and N2O in a lignite fired 1.2MWth CFB pilot plant is developed. The decoupled approach (decoupled from combustion simulation) is tested for the minimization of computational cost. As combustion simulation is prerequired, this was achieved through a simplified 3-D CFD combustion model. The developed model is then applied to the pilot-scale 1.2MWth CFB plant and validated against experimental data. As concerns the NOxN2O model, an extensive literature review is also carried out for the incorporation of the appropriate reactions network and respective reaction rates expressions. Results show that homogenous reactions are favoured on the lower section of the bed, due to the abundance of fuel devolatilization products. On the other hand, on the upper section, heterogeneous reactions govern nitric oxide formation/reduction. It is found that for the lignite examined in this work, HCN is released in negligible amounts during char combustion. The proposed and validated CFD model for \\{NOx\\} and N2O, is capable of examining the effect of different operational parameters and coal properties on the overall nitric oxides emissions from a CFB combustor, with low computational cost and without the additional expenses for pilot-scale experiments.

A. Nikolopoulos; I. Malgarinos; N. Nikolopoulos; P. Grammelis; S. Karrelas; E. Kakaras

2014-01-01T23:59:59.000Z

440

Fabrication of computationally designed scaffolds by low temperature 3D printing  

Science Journals Connector (OSTI)

The development of artificial bone substitutes that mimic the properties of bone and simultaneously promote the desired tissue regeneration is a current issue in bone tissue engineering research. An approach to create scaffolds with such characteristics is based on the combination of novel design and additive manufacturing processes. The objective of this work is to characterize the microstructural and the mechanical properties of scaffolds developed by coupling both topology optimization and a low temperature 3D printing process. The scaffold design was obtained using a topology optimization approach to maximize the permeability with constraints on the mechanical properties. This procedure was studied to be suitable for the fabrication of a cage prototype for tibial tuberosity advancement application, which is one of the most recent and promising techniques to treat cruciate ligament rupture in dogs. The microstructural and mechanical properties of the scaffolds manufactured by reacting ?/?-tricalcium phosphate with diluted phosphoric acid were then assessed experimentally and the scaffolds strength reliability was determined. The results demonstrate that the low temperature 3D printing process is a reliable option to create synthetic scaffolds with tailored properties, and when coupled with topology optimization design it can be a powerful tool for the fabrication of patient-specific bone implants.

Miguel Castilho; Marta Dias; Uwe Gbureck; Jrgen Groll; Paulo Fernandes; Ins Pires; Barbara Gouveia; Jorge Rodrigues; Elke Vorndran

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "materials 3d experimental" 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

Energy Conversion Materials Through Chemical Synthesis Route  

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

Conversion Materials Through Chemical Synthesis Route Conversion Materials Through Chemical Synthesis Route Speaker(s): Lionel Vayssieres Date: April 27, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Samuel Mao The ability to design anisotropic nanoparticles with tailored aspect ratio and to order them into large 3-D arrays is an important challenge that scientists have to face to create functionalized nanomaterials. Our approach to control the size and shape of nanoparticles as well as the overall texture of nanoparticulate thin films is to tune their direct aqueous hydrolysis-condensation growth onto substrates by monitoring the interfacial thermodynamics of nanocrystals as well as their kinetics of heteronucleation. Growing materials at very low interfacial tension, i.e. at thermodynamically stable conditions, allows the experimental control of

442

Oxidation mechanisms and kinetics of 1D-SiC/C/SiC composite materials; 1: An experimental approach  

SciTech Connect

The oxidation of unidirectional SiC/C/SiC model composites has been investigated through thermogravimetric analysis, optical/electron microscopy, and electrical measurements. The influence of temperature and carbon interphase thickness on the oxidation of the composites is discussed. The oxidation involves three phenomena: (1) reaction of oxygen with the carbon interphase resulting in pores around the fibers, (2) diffusion of oxygen and carbon oxides along the pores, and (3) reaction of oxygen with the pore walls leading to the growth of silica layers on both the fibers and matrix. In composites with a thin carbon interphase treated at T > 1,000 C the pores are rapidly sealed by silica. Under such conditions, the oxidation damages are limited to the vicinity of the external surface and the materials exhibit a self-healing character. Conversely, long exposures at 900 C give rise to the formation of microcracks in the matrix related to mechanical stresses arising from the in situ SiC/SiO[sub 2] conversion. Finally, the self-heating character is not observed in composites with a thick interphase since carbon is totally consumed before silica can seal the pores.

Filipuzzi, L.; Camus, G.; Naslain, R. (Domaine Univ., Pessac (France). Lab. des Composites Thermostructuraux); Thebault, J. (Societe Europeenne de Propulsion, Saint Medard en Jalles (France))

1994-02-01T23:59:59.000Z

443

An asymptotic homogenization model for smart 3D grid-reinforced composite structures  

Science Journals Connector (OSTI)

A comprehensive micromechanical model for smart 3D composite structures reinforced with a periodic grid of generally orthotropic cylindrical reinforcements that also exhibit piezoelectric behavior is developed. The original boundary value problem characterizing the piezothermoelastic behavior of these structures is decoupled into a set of three simpler unit cell problems dealing, separately, with the elastic, piezoelectric and thermal expansion characteristics of the smart composite. The technique used is that of asymptotic homogenization and the solution of the unit cell problems permits determination of the effective elastic, piezoelectric and thermal expansion coefficients. The general orthotropy of the constituent materials is very important from the practical viewpoint and makes the analysis much more complicated. Several examples of practical interest are used to illustrate the work including smart 3D composites with cubic and conical embedded grids as well as diagonally reinforced smart structures. It is also shown in this work that in the limiting particular case of 2D grid-reinforced structures with isotropic reinforcements our results converge to earlier published results.

E M Hassan; A L Kalamkarov; A V Georgiades; K S Challagulla

2009-01-01T23:59:59.000Z

444

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

445

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

446

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

447

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

448

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

449

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

450

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

451

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

452

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

453

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

454

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

SciTech Connect

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

455

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

456

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.

457

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

NLE Websites -- All DOE Office Websites (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...

458

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

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

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

459

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

460

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

Note: This page contains sample records for the topic "materials 3d experimental" 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

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...

462

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

NLE Websites -- All DOE Office Websites (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....

463

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

464

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

465

Automating the determination of 3D protein structure  

SciTech Connect

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

466

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

467

Exploration 3-D Seismic Field Test/Native Tribes Initiative  

SciTech Connect

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

468

3D Model of the San Emidio Geothermal Area  

DOE Data Explorer (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

469

3D Model of the San Emidio Geothermal Area  

SciTech Connect

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

470

3D Model of the Neal Hot Springs Geothermal Area  

SciTech Connect

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

471

3D Model of the Neal Hot Springs Geothermal Area  

DOE Data Explorer (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.

472

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

473

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

474

Combining SRP-PHAT and two Kinects for 3D Sound Source Localization  

Science Journals Connector (OSTI)

Abstract The Kinect has been developed to recognize gestures and voice commands, through a set of cameras and microphones, respectively. This paper proposes and evaluates low-cost Sound Source Localization (SSL) solution based this off-the-shelf equipment. It consists of employing a pair of Kinect devices as an alternative for microphone array, and executing the Steered Response Power using the \\{PHAse\\} Transform (SRP-PHAT) localization algorithm over acquired sound data. A fully functional prototype has been implemented and put to test under a realistic scenario. Experimental results indicate that although our approach is capable of achieving limited position estimation, and it can accurately point towards the sources direction. Two different high performance versions of the algorithm have been implemented to improve overall system performance under 3D Sound Source Localization setup.

Lucas Adams Seewald; Luiz Gonzaga Jr.; Mauricio Roberto Veronez; Vicente Peruffo Minotto; Cludio Rosito Jung

2014-01-01T23:59:59.000Z

475

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

476

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

SciTech Connect

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

Jacobsen, Chris

2014-12-07T23:59:59.000Z

477

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

478

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

479

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

480

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

Note: This page contains sample records for the topic "materials 3d experimental" from the National Library of EnergyBeta (NLEBeta).
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481

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

482

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.

483

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"

484

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

485

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

486

Charge Collection Measurements in single-type column 3D Sensors  

E-Print Network (OSTI)

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

California at Santa Cruz, University of

487

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

E-Print Network (OSTI)

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

Brooks, Stephen

488

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

E-Print Network (OSTI)

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

Hauser, Kris

489

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

E-Print Network (OSTI)

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

Abbeel, Pieter

490

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

E-Print Network (OSTI)

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

Zakhor, Avideh

491

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

E-Print Network (OSTI)

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

492

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

E-Print Network (OSTI)

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

Abbeel, Pieter

493

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

E-Print Network (OSTI)

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

Verschure, Paul

494

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

E-Print Network (OSTI)

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

Lévy, Bruno

495

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

E-Print Network (OSTI)

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

Boyer, Edmond

496

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

E-Print Network (OSTI)

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

Stürzlinger, Wolfgang

497

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

498

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

E-Print Network (OSTI)

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

Paris-Sud XI, Université de

499

3D Interactive Room Organizer Eranda De Alwis and Baihua Li  

E-Print Network (OSTI)

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

Li, Baihua

500

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

E-Print Network (OSTI)

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

Hall, Sharon J.