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3D Printing of nanostructured catalytic materials | The Ames...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
3D Printing of nanostructured catalytic materials Over the last couple of decades, scientists have been able to develop a tremendous control over the synthesis and properties of...
Nanostructured composite reinforced material
DOE Patents [OSTI]
A family of materials wherein nanostructures and/or nanotubes are incorporated into a multi-component material arrangement, such as a metallic or ceramic alloy or composite/aggregate, producing a new material or metallic/ceramic alloy. The new material has significantly increased strength, up to several thousands of times normal and perhaps substantially more, as well as significantly decreased weight. The new materials may be manufactured into a component where the nanostructure or nanostructure reinforcement is incorporated into the bulk and/or matrix material, or as a coating where the nanostructure or nanostructure reinforcement is incorporated into the coating or surface of a "normal" substrate material. The nanostructures are incorporated into the material structure either randomly or aligned, within grains, or along or across grain boundaries.
Seals, Roland D. (Oak Ridge, TN); Ripley, Edward B. (Knoxville, TN); Ludtka, Gerard M. (Oak Ridge, TN)
Final report: high resolution lensless 3D imaging of nanostructures with coherent x-rays
SciTech Connect (OSTI)
Final report on the project "High resolution lensless 3D imaging of nanostructures with coherent x-rays"
Jacobsen, Chris
Nanostructured materials for hydrogen storage
A system for hydrogen storage comprising a porous nano-structured material with hydrogen absorbed on the surfaces of the porous nano-structured material. The system of hydrogen storage comprises absorbing hydrogen on the surfaces of a porous nano-structured semiconductor material.
Williamson, Andrew J. (Pleasanton, CA); Reboredo, Fernando A. (Pleasanton, CA)
Nanostructured Electrode Materials for Supercapacitors
E-Print Network [OSTI]
and batteries/fuel cells. Nanostructured electrode materials have demonstrated superior electrochemical of polymethine dyes electronic spectra is crucial for successful design of the new molecules with optimized
Wu, Shin-Tson
3D Printing of Functional and Biological Materials
! 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
3D Patterning of Micro and Nanostructures by Ion Controlled Etching (ICE) process
of Process with commercial standard equipment Y Process designed for deployment in large volume production Y3D Patterning of Micro and Nanostructures by Ion Controlled Etching (ICE) process Technology offer: email@example.com Contact Ion implantation controlled process for high resolution patterning of 3
Szmolyan, Peter
Preparation of Nanostructured Materials Having Improved Ductility
Preparation of Nanostructured Materials Having Improved Ductility Preparation of Nanostructured Materials Having Improved Ductility Preparation of Nanostructured Materials Having Improved Ductility A method for preparing a nanostructured aluminum alloy involves heating an aluminum alloy workpiece at temperature sufficient to produce a single phase coarse grained aluminum alloy. June 20, 2013 Preparation of Nanostructured Materials Having Improved Ductility A method for preparing a nanostructured aluminum alloy involves heating an aluminum alloy workpiece at temperature sufficient to produce a single phase coarse grained aluminum alloy. Available for thumbnail of Feynman Center for Innovation (505) 665-9090 Email Preparation of Nanostructured Materials Having Improved Ductility A method for preparing a nanostructured aluminum alloy involves heating an
Method of fabrication of anchored nanostructure materials
Methods for fabricating anchored nanostructure materials are described. The methods include heating a nano-catalyst under a protective atmosphere to a temperature ranging from about 450.degree. C. to about 1500.degree. C. and contacting the heated nano-catalysts with an organic vapor to affix carbon nanostructures to the nano-catalysts and form the anchored nanostructure material.
Seals, Roland D; Menchhofer, Paul A; Howe, Jane Y; Wang, Wei
Anchored nanostructure materials and method of fabrication
Anchored nanostructure materials and methods for their fabrication are described. The anchored nanostructure materials may utilize nano-catalysts that include powder-based or solid-based support materials. The support material may comprise metal, such as NiAl, ceramic, a cermet, or silicon or other metalloid. Typically, nanoparticles are disposed adjacent a surface of the support material. Nanostructures may be formed as anchored to nanoparticles that are adjacent the surface of the support material by heating the nano-catalysts and then exposing the nano-catalysts to an organic vapor. The nanostructures are typically single wall or multi-wall carbon nanotubes.
Nanostructured Thermoelectric Materials and High Efficiency Power...
Nanostructured Thermoelectric Materials and High Efficiency Power Generation Modules Home Author: T. Hogan, A. Downey, J. Short, S. D. Mahanti, H. Schock, E. Case Year: 2007...
Quantitative prediction of 3D solution shape and flexibility of nucleic acid nanostructures
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.
Innovative Nano-structuring Routes for Novel ThermoelectricMaterials...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & DOS Engineering Innovative Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking &...
Nanostructured Materials for Energy Generation and Storage
efficiency of the thermoelectric energy generation and battery storageefficiency of the thermoelectric energy generation and battery storagebattery electrodes suggest that the use of nanostructured materials can substantially improve the thermal management of the batteries and their energy storage efficiency.
Khan, Javed Miller
Subtask 5: Functional nanostructured transparent electrode materials...
5: Functional nanostructured transparent electrode materials All papers by year Subtask 1 Subtask 2 Subtask 3 Subtask 4 Subtask 5 Jeon, K.-W. and Seo, D.-K.(2014)Concomitant...
Nanostructured Materials as Anodes | Department of Energy
2010 -- Washington D.C. es063whittingham2010p.pdf More Documents & Publications Nano-structured Materials as Anodes Metal-Based, High-Capacity Lithium-Ion Anodes...
3D deformation field throughout the interior of materials.
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
Characterization of direct print additive manufacturing process for 3D build of a carbon nanostructure composite.
?? This project is a focus on characterizing the process for actualizing three dimensional structures out of a carbon nanostructure composite via a direct print� (more)
Rodriguez, Ricardo Xavier
Supplementary Material The pumping lid: Investigating multi-material 3D printing for equipment-free, programmable
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.
Thermal Energy Transport in Nanostructured Materials
Thermal Energy Transport in Nanostructured Materials Thermal Energy Transport in Nanostructured Materials Speaker(s): Ravi Prasher Date: August 25, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Ashok Gadgil World energy demand is expected to reach ~30 TW by 2050 from the current demand of ~13 TW. This requires substantial technological innovation. Thermal energy transport and conversion play a very significant role in more than 90% of energy technologies. All four modes of thermal energy transport, conduction, convection, radiation, and phase change (e.g. evaporation/boiling) are important in various energy technologies such as vapor compression power plants, refrigeration, internal combustion engines and building heating/cooling. Similarly thermal transport play a critical role in electronics cooling as the performance and reliability of
MultiFab : a multi-material 3D printing platform
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-Malt�s, Javier Eduardo
Stochastic Simulation Model for the 3D Morphology of Composite Materials in Li-Ion Batteries
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
Engineering Magnetic Anisotropy in Nanostructured 3d and 4f Ferromagnets
3d transition and 4f rare earth elements are being studiedthe remainder are rare earth elements (which have incompletemay arise in the rare earth elements (e.g. see Rhodes [ 96])
Hsu, Chin-Jui
Nanostructured Thermoelectric Materials: From Superlattices to Nanocomposites Ronggui Yang1
Nanostructured Thermoelectric Materials: From Superlattices to Nanocomposites Ronggui Yang1. Materials with a large thermoelectric figure of merit can be used to develop efficient solid-state devices nanocomposites, aiming at developing high efficiency thermoelectric energy conversion materials. 1. Introduction
Chen, Gang
Electron and Phonon Engineering in Nanostructured Thermoelectric Materials Zhifeng Ren
2.00pm Electron and Phonon Engineering in Nanostructured Thermoelectric Materials Zhifeng Ren Department of Physics, Boston College, Chestnut Hill, Massachusetts Abstract Thermoelectric materials a successful case for potentially large scale application using thermoelectric materials. Biography Dr Zhifeng
Levi, Anthony F. J.
Final Technical Progress Report NANOSTRUCTURED MAGNETIC MATERIALS
This report describes progress made during the final phase of our DOE-funded program on Nanostructured Magnetic Materials. This period was quite productive, resulting in the submission of three papers and presentation of three talks at international conferences and three seminars at research institutions. Our DOE-funded research efforts were directed toward studies of magnetism at surfaces and interfaces in high-quality, well-characterized materials prepared by Molecular Beam Epitaxy (MBE) and sputtering. We have an exceptionally well-equipped laboratory for these studies, with: Thin film preparation equipment; Characterization equipment; Equipment to study magnetic properties of surfaces and ultra-thin magnetic films and interfaces in multi-layers and superlattices.
Charles M. Falco
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 .
??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)
Monolithic Integrations of Slanted Silicon Nanostructures on 3D Microstructures and Their Application to Surface Enhanced Raman Spectroscopy
We demonstrated fabrication of black silicon with slanted nanocone array on both planar and 3D micro and meso scale structures produced by a high-throughput lithography-free oblique-angle plasma etching process. Nanocones with gradual change in height were created on the same piece of silicon. The relation between the slanted angle of nanocones and incident angle of directional plasma is experimentally investigated. In order to demonstrate the monolithic integration of nanostructures on micro and meso scale non-planar surfaces, nanocone forest is fabricated on non-planar silicon surfaces in various morphologies such as silicon atomic force microscopy (AFM) tips and pyramidal pits. By integrating nanocones on inverse silicon micro-pyramid array devices, we further improved the surface enhanced Raman scattering (SERS) enhancement property of this optimized commercial SERS substrate by several folds even when using 66% less noble metal coating. We investigated the length gradient dependence and asymmetric proper...
Xu, Zhida
3D Optical Printing of Piezoelectric Nanoparticle�Polymer Composite Materials
Science Journals Connector (OSTI)
ACS ActiveView PDFHi-Res Print, Annotate, Reference QuickView ... Here we demonstrate that efficient piezoelectric nanoparticle�polymer 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
for Electrochemical Energy Storage Nanostructured Electrodesof Electrode Design for Energy Storage and Generation .batteries and their energy storage efficiency. vii Contents
An advanced 3D boundary element method for characterizations of composite materials
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
3D nano-structures for laser nano-manipulation Gediminas Seniutinas1,2, Lorenzo Rosa*1,2, Gediminas Gervinskas1,2,
534 3D nano-structures for laser nano-manipulation Gediminas Seniutinas1,2, Lorenzo Rosa*1-Institut. License and terms: see end of document. Abstract The resputtering of gold films from nano-holes defined of the nano-holes. The extraordinary transmission through the patterns of such nano-wells was investigated
Boyer, Edmond
Constitutive parameter identification of 3D printing material based on the virtual fields method
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
Potential applications of nanostructured materials in nuclear waste management.
This report summarizes the results obtained from a Laboratory Directed Research & Development (LDRD) project entitled 'Investigation of Potential Applications of Self-Assembled Nanostructured Materials in Nuclear Waste Management'. The objectives of this project are to (1) provide a mechanistic understanding of the control of nanometer-scale structures on the ion sorption capability of materials and (2) develop appropriate engineering approaches to improving material properties based on such an understanding.
Braterman, Paul S. (The University of North Texas, Denton, TX); Phol, Phillip Isabio; Xu, Zhi-Ping (The University of North Texas, Denton, TX); Brinker, C. Jeffrey; Yang, Yi (University of New Mexico, Albuquerque, NM); Bryan, Charles R.; Yu, Kui; Xu, Huifang (University of New Mexico, Albuquerque, NM); Wang, Yifeng; Gao, Huizhen
Thermoelectric energy conversion using nanostructured materials
High performance thermoelectric materials in a wide range of temperatures are essential to broaden the application spectrum of thermoelectric devices. This paper presents experiments on the power and efficiency characteristics ...
New frontier in thin film epitaxy and nanostructured materials
Nanomaterials hold the key to the success of nanotechnology. This review starts with a new paradigm for thin film growth based upon matching of integral multiples of lattice planes across the film-substrate interface. This paradigm of domain matching epitaxy (DME) unifies small as well as large misfit systems utilising the concept of systematic domain variation. By controlling the kinetics of clustering and energetics of interfaces, it is possible to obtain nanoclusters of uniform size and create novel nanostructured materials by design, where relative orientation with respect to matrix can be controlled by DME. In nanostructured materials with unit dimensions 1�??100 nm, science and processing challenges include self-assembly processing, control of interfacial atoms and energetics, quantum confinement issues, nanoscale structure-property correlations. In addition, metastability of interfaces should be controlled for reliability in manufacturing of nanosystems. This paper presents fundamentals of synthesis and processing of nanomaterials, role of interfaces, nanoscale characterisation to establish atomic structure-property correlations and modelling to create novel nanostructured structural, magnetic, photonic and electronic systems with unique and improved properties for next-generation systems with new functionality.
Jagdish Narayan
Novel nano-structured materials: synthesis and application
Novel nano-structured materials: nano-particle materials like V-SiO2, TiO2 and nano-sized pore materials like Si-MCM-41, Ti-MCM-41 and Al-MCM-41Analogues were successfully synthesised using different methods: precipitation, sol-gel, micro-emulsion and hydrothermal treatment. These obtained nano-structured materials were characterised by using different physico-chemical methods: FE-SEM, TEM, XRD, IR, UV-vis and nitrogen adsorption/desorption (BET). These materials were examined to investigate adsorptive and catalytic properties of the materials. Nano TiO2 exhibited highly photocatalytic activity in the degradation of methyl red (MR). Pure silica form MCM-41 (Si-MCM-41Analogue) was a selective absorbent for VOCs (m-xylene) removal. Ti substituted MCM-41Analogue exhibited highly photocatalytic activity in the degradation of red phenol (RP) while Al substituted MCM-41Analogue showed high catalytic cracking of petroleum residue (Bach Ho oil field � Vietnam). The obtained results are discussed and rationalised.
Vu Anh Tuan; Tran Manh Cuong; Dang Tuyet Phuong; Tran Thi Kim Hoa; Bui Thi Hai Linh; Nguyen Dinh Tuyen; Nguyen Quoc Tuan
High volume production of nanostructured materials
A system and method for high volume production of nanoparticles, nanotubes, and items incorporating nanoparticles and nanotubes. Microwave, radio frequency, or infrared energy vaporizes a metal catalyst which, as it condenses, is contacted by carbon or other elements such as silicon, germanium, or boron to form agglomerates. The agglomerates may be annealed to accelerate the production of nanotubes. Magnetic or electric fields may be used to align the nanotubes during their production. The nanotubes may be separated from the production byproducts in aligned or non-aligned configurations. The agglomerates may be formed directly into tools, optionally in compositions that incorporate other materials such as abrasives, binders, carbon-carbon composites, and cermets.
Ripley, Edward B. (Knoxville, TN); Morrell, Jonathan S. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Ludtka, Gerard M. (Oak Ridge, TN)
Direct laser writing: Principles and materials for scaffold 3D printing
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
Femto-second laser fabrication of phase change material nanostructures for novel applications
In this paper, we will demonstrate our recent results of laser lithography of nanostructures of phase change material for novel nanophotonic application.
Tseng, Ming Lun; Chu, Cheng Hung; Chang, Chia Min; Lin, Wei Chih; Chu, Nien-Nan; Mansuripur, Masud; Liu, Ai Qun; Tsai, Din Ping
Giant light extraction enhancement of medical imaging scintillation materials using biologically inspired integrated nanostructures
We have utilized biologically inspired (bio-inspired), moth-eye nanostructures and further improved this biomimetic structure to enhance the scintillator materials external quantum...
Pignalosa, P; Liu, Bo; Chen, Hong; Smith, H; Yi, Yasha
Vacuum compatibility of 3D-printed materials Alexander P. Povilus, Caroline J. Wurden, Zak Vendeiro, Marcelo Baquero-Ruiz, and Joel Fajans
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
Experimental Investigation of Material Flows Within FSWs Using 3D Tomography
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
Crystal growth and electronic properties of a 3D Rashba material, BiTeI, with adjusted carrier concentrations
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�?�0.2�mm3) 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
Nanomanufacturing : nano-structured materials made layer-by-layer.
Large-scale, high-throughput production of nano-structured materials (i.e. nanomanufacturing) is a strategic area in manufacturing, with markets projected to exceed $1T by 2015. Nanomanufacturing is still in its infancy; process/product developments are costly and only touch on potential opportunities enabled by growing nanoscience discoveries. The greatest promise for high-volume manufacturing lies in age-old coating and imprinting operations. For materials with tailored nm-scale structure, imprinting/embossing must be achieved at high speeds (roll-to-roll) and/or over large areas (batch operation) with feature sizes less than 100 nm. Dispersion coatings with nanoparticles can also tailor structure through self- or directed-assembly. Layering films structured with these processes have tremendous potential for efficient manufacturing of microelectronics, photovoltaics and other topical nano-structured devices. This project is designed to perform the requisite R and D to bring Sandia's technology base in computational mechanics to bear on this scale-up problem. Project focus is enforced by addressing a promising imprinting process currently being commercialized.
Cox, James V.; Cheng, Shengfeng; Grest, Gary Stephen; Tjiptowidjojo, Kristianto (University of New Mexico); Reedy, Earl David, Jr.; Fan, Hongyou; Schunk, Peter Randall; Chandross, Michael Evan; Roberts, Scott A.
High performance capacitors using nano-structure multilayer materials fabrication
A high performance capacitor is fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a ``notepad`` configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The notepad capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density. 5 figs.
Barbee, T.W. Jr.; Johnson, G.W.; O`Brien, D.W.
A high performance capacitor fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a "notepad" configuration composed of 200-300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The "notepad" capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density.
Barbee, Jr., Troy W. (Palo Alto, CA); Johnson, Gary W. (Livermore, CA); O'Brien, Dennis W. (Livermore, CA)
A high performance capacitor is described which is fabricated from nano-structure multilayer materials, such as by controlled, reactive sputtering, and having very high energy-density, high specific energy and high voltage breakdown. The multilayer capacitors, for example, may be fabricated in a ``notepad`` configuration composed of 200--300 alternating layers of conductive and dielectric materials so as to have a thickness of 1 mm, width of 200 mm, and length of 300 mm, with terminals at each end of the layers suitable for brazing, thereby guaranteeing low contact resistance and high durability. The ``notepad`` capacitors may be stacked in single or multiple rows (series-parallel banks) to increase the voltage and energy density. 5 figs.
Improvement of 3D Printing Resolution by the Development of Shrinkable Materials.
??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
3D hollow Sn@carbon-graphene hybrid material as promising anode for lithium-ion batteries
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
SABIC�s Carbon Fiber-Reinforced Material used to Produce the World�s First 3D-Printed Vehicle at IMTS 2014
Broader source: Energy.gov [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.
Routes to Nanostructured Inorganic Materials with Potential for Solar Energy Applications
Routes to Nanostructured Inorganic Materials with Potential for Solar Energy Applications ... The behavior of the transition energies with temp. is explained by a self-energy correction attributed to the interaction between electrons and nonpolar phonons. ...
Karthik Ramasamy; Mohammad Azad Malik; Neerish Revaprasadu; Paul O�Brien
Tuning energy transport in solar thermal systems using nanostructured materials
Solar thermal energy conversion can harness the entire solar spectrum and theoretically achieve very high efficiencies while interfacing with thermal storage or back-up systems for dispatchable power generation. Nanostructured ...
Lenert, Andrej
Metrology of 3D nanostructures.
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.
Workshop in Novel Emitters and Nanostructured Materials | U.S. DOE Office
Office of Science (SC) Website
Workshop in Novel Emitters and Nanostructured Workshop in Novel Emitters and Nanostructured Materials Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News EFRC Events DOE Announcements Publications Contact BES Home 09.01.11 Workshop in Novel Emitters and Nanostructured Materials Print Text Size: A A A Subscribe FeedbackShare Page The Solid-State Lighting Science Energy Frontier Research Center (SSLS EFRC) is hosting a workshop in conjunction with CINT's Annual User Conference on September 14, 2011. The workshop covers topics on Novel Emitters and Light-Matter Interaction in Nanostructured Materials, and features a plenary talk by Lars Samuelson, Director of the Nanometer Structure Consortium at Lund University. Additional speakers include John Schlager, NIST; Silvija Gradecak, MIT;
3-D photo-patterning of refractive index structures in photosensitive thin film materials
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)
Method of making nanopatterns and nanostructures and nanopatterned functional oxide materials
Method for nanopatterning of inorganic materials, such as ceramic (e.g. metal oxide) materials, and organic materials, such as polymer materials, on a variety of substrates to form nanopatterns and/or nanostructures with control of dimensions and location, all without the need for etching the materials and without the need for re-alignment between multiple patterning steps in forming nanostructures, such as heterostructures comprising multiple materials. The method involves patterning a resist-coated substrate using electron beam lithography, removing a portion of the resist to provide a patterned resist-coated substrate, and spin coating the patterned resist-coated substrate with a liquid precursor, such as a sol precursor, of the inorganic or organic material. The remaining resist is removed and the spin coated substrate is heated at an elevated temperature to crystallize the deposited precursor material.
Dravid, Vinayak P; Donthu, Suresh K; Pan, Zixiao
A 3D Orthotropic Strain-Rate Dependent Elastic Damage Material Model.
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
Three-dimensional nanostructures fabricated by stacking pre-patterned monocrystalline silicon nanomembranes
This thesis considers the viability of nanomembrane handling and stacking approaches to enable the fabrication of three-dimensional (3D) nano-structured materials. Sequentially stacking previously-patterned membranes to ...
Fucetola, Corey Patrick
Thermal Characterization of Nanostructures and Advanced Engineered Materials
paraffin Composite Phase Change Material,� Carbon vol. 48,EG)/paraffin composite phase change materials (PCMs) [29] as
Goyal, Vivek Kumar
Graphene's 3D Counterpart
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...
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...
Development of Nanostructured Materials with Improved Radiation Tolerance for Advanced Nuclear Systems
This project will explore the fundamental mechanisms through which interfaces in nanolayered structures and grain boundaries of bulk nanomaterials are able to attract and rapidly eliminate point defects and unwanted foreign species. Candidate materials that will be studied include both nanostructured multilayer composites synthesized by magnetron sputtering and structural bulk nanomaterials produced by severed plastic deformation, equal channel angular extrusion.
Zinghang Zhang; K. Ted Hartwig
Chemically modified and nanostructured porous silicon as a drug delivery material and device
Sailor, M. J. , Engineering the chemistry and nanostructureSailor, M. J. , Engineering the chemistry and nanostructureSailor, M. J. , Engineering the chemistry and nanostructure
Anglin, Emily Jessica
Wear-resistance and hardness: Are they directly related for nanostructured hard materials?
Abstract The major challenge in the field of cemented carbides and other hard materials is to obtain their better combination of hardness, wear-resistance and fracture toughness. It is well known that the dependence of abrasion wear on fracture toughness for WC�Co cemented carbides is represented by a relatively narrow band and it is hardly possible to �break away� out from it by the use of conventional approaches based on varying the WC mean grain size and Co content. Also, it is well known that the wear-resistance of conventional cemented carbides depends mainly on their hardness. The major objective of this paper is to establish what will happen with the wear-resistance of hard materials as a result of their nanostructuring when the hardness is nearly the same as for conventional WC�Co cemented carbides. The results obtained provide clear evidence that, if one enters the region of nanostructured materials with the mean grain size of less than 10�nm, traditional wisdom indicating that the wear-resistance is directly related to the hardness appears not to be valid. In some cases of such nanostructured materials, it can be possible to achieve the dramatically improved wear-resistance compared to that of conventional WC�Co cemented carbides at nearly the same level of hardness and fracture toughness. The abovementioned is based on considering hard nanomaterials of the following four types: (1) WC�Co cemented carbides with nanograin reinforced binder, (2) near-nano WC�Co cemented carbides, (3) cemented carbides of the W�C�Cr�Si�Fe system for hard-facing having a nanostructured Fe-based binder, and (4) CVD hard materials consisting of nanostructured W2C grains embedded in a tungsten metal binder.
I. Konyashin; B. Ries; D. Hlawatschek; Y. Zhuk; A. Mazilkin; B. Straumal; F. Dorn; D. Park
Characterization of 3D Photovoltaics
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
Exciton transport and coherence in molecular and nanostructured materials
Over the past 20 years a new classes of optically active materials have been developed that are composites of nano-engineered constituents such as molecules, polymers, and nanocrystals. These disordered materials have ...
Akselrod, Gleb M. (Gleb Markovitch)
Aerogels and Sol�Gel Composites as Nanostructured Energetic Materials
In the last 10 years there have been a significant number of investigations of the application of aerogels and sol�gel-derived materials and methods to the field of energetic materials (e.g., explosives, prope...
Alexander E. Gash; Randall L. Simpson; Joe H. Satcher Jr
Method of producing catalytic materials for fabricating nanostructures
Methods of fabricating nano-catalysts are described. In some embodiments the nano-catalyst is formed from a powder-based substrate material and is some embodiments the nano-catalyst is formed from a solid-based substrate material. In some embodiments the substrate material may include metal, ceramic, or silicon or another metalloid. The nano-catalysts typically have metal nanoparticles disposed adjacent the surface of the substrate material. The methods typically include functionalizing the surface of the substrate material with a chelating agent, such as a chemical having dissociated carboxyl functional groups (--COO), that provides an enhanced affinity for metal ions. The functionalized substrate surface may then be exposed to a chemical solution that contains metal ions. The metal ions are then bound to the substrate material and may then be reduced, such as by a stream of gas that includes hydrogen, to form metal nanoparticles adjacent the surface of the substrate.
3D Tissue Scaffolds BIOMATERIALS
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
High-capacity nanostructured germanium-containing materials and lithium alloys thereof
Electrodes comprising an alkali metal, for example, lithium, alloyed with nanostructured materials of formula Si.sub.zGe.sub.(z-1), where 0 Graetz, Jason A. (Upton, NY); Fultz, Brent T. (Pasadena, CA); Ahn, Channing (Pasadena, CA); Yazami, Rachid (Los Angeles, CA) 2010-08-24T23:59:59.000Z
Graetz, Jason A. (Upton, NY); Fultz, Brent T. (Pasadena, CA); Ahn, Channing (Pasadena, CA); Yazami, Rachid (Los Angeles, CA)
Nanostructured energetic materials using sol�gel methodologies
We have utilized a sol�gel synthetic approach in preparing nano-sized transition metal oxide components for new energetic nanocomposites. Nanocomposites of Fe2O3/Al(s), are readily produced from a solution of Fe(III) salt by adding an organic epoxide and a powder of the fuel metal. These materials can be processed to aerogel or xerogel monolithic composite solids. High resolution transmission electron microscopy (HRTEM) of the dried energetic nanocomposites reveal that the metal oxide component consists of small (3�10 nm) clusters of Fe2O3 that are in intimate contact with ultra fine grain (UFG) ?25 nm diameter Al metal particles. HRTEM results also indicate that the Al particles have an oxide coating ?5 nm thick. This value agrees well with analysis of pristine UFG Al powder and indicates that the sol�gel synthetic method and processing does not significantly perturb the fuel metal. Both qualitative and quantitative characterization has shown that these materials are indeed energetic. The materials described here are relatively insensitive to standard impact, spark, and friction tests, results of which will be presented. Qualitatively, it does appear that these energetic nanocomposites burn faster and are more sensitive to thermal ignition than their conventional counterparts and that aerogel materials are more sensitive to ignition than xerogels. We believe that the sol�gel method will at the very least provide processing advantages over conventional methods in the areas of cost, purity, homogeneity, and safety and potentially yield energetic materials with interesting and special properties.
T.M Tillotson; A.E Gash; R.L Simpson; L.W Hrubesh; J.H Satcher Jr.; J.F Poco
Hierarchical 3D micro-/nano-V2O5 (vanadium pentoxide) spheres as cathode materials for high-energy and high-power lithium ion-batteries
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
Methods for high volume production of nanostructured materials
Ripley, Edward B. (Knoxville, TN); Morrell, Jonathan S. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Ludtka, Gerald M. (Oak Ridge, TN)
Nanostructured material for advanced energy storage : magnesium battery cathode development.
Magnesium batteries are alternatives to the use of lithium ion and nickel metal hydride secondary batteries due to magnesium's abundance, safety of operation, and lower toxicity of disposal. The divalency of the magnesium ion and its chemistry poses some difficulties for its general and industrial use. This work developed a continuous and fibrous nanoscale network of the cathode material through the use of electrospinning with the goal of enhancing performance and reactivity of the battery. The system was characterized and preliminary tests were performed on the constructed battery cells. We were successful in building and testing a series of electrochemical systems that demonstrated good cyclability maintaining 60-70% of discharge capacity after more than 50 charge-discharge cycles.
Sigmund, Wolfgang M. (University of Florida, Gainesville, FL); Woan, Karran V. (University of Florida, Gainesville, FL); Bell, Nelson Simmons
Special issue to �ICMAT 2009, Symposium F: nanostructured materials for electrochemical energy systems: lithium batteries, supercapacitors and fuel cells, June 28-July 3, 2009, Singapore�
The Symposium F on �Nanostructured Materials for Electrochemical Energy Systems: Lithium Batteries, Supercapacitors and Fuel Cells� provided an excellent opportunity for interdisciplinary ... (cathodes and anodes...
Palani Balaya; San Ping Jiang; Atsuo Yamada�
The Challenges and Opportunities of Measuring Properties of Nanoparticles and Nanostructured Materials: Importance of a Multi-Technique Approach
Nanostructured materials are increasingly subject to nearly every type of chemical and physical analysis possible. Because of their small feature size there is a significant focus on tools with high spatial resolution. Since, in addition, because of their high surface area, it is natural to characterize nanomaterials using tools designed to analyze surfaces. Regardless of the approach, nanostructured materials present a variety of obstacles to useful analysis. Specimen handling, contamination, environmental conditions and time can be important for analysis of many materials but are of increased concern for nanomaterials. Impacts of shape and stability of nanostructured materials are less explored. In a program focused on iron nanoparticles we use a combination of tools for routine analysis including XPS, TEM, and XRD and apply other methods as needed to obtain essential information.
Baer, Donald R.; Engelhard, Mark H.; Wang, Chong M.; Lea, Alan S.; Pecher, Klaus H.
Evaluation of single-field macro element for predicting 3D material properties of plain weave composites
) 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
Mechanical Behavior of Indium Nanostructures
Mechanical Behavior of Indium Nanostructures Mechanical Behavior of Indium Nanostructures Print Wednesday, 26 May 2010 00:00 Indium is a key material in lead-free solder...
Supercapacitors Based on 3D Nanostructured Electrodes
Climate change, the decreasing availability of fossil fuels vs. the increasing demand for them, and atmospheric pollution caused by combustion engines of automotive systems require society to move toward susta...
Hao Zhang; Gaoping Cao; Yusheng Yang
Using Single-Camera 3-D Imaging to Guide Material Handling Robots in a Nuclear Waste Package Closure System
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 system�a 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
Optoacoustic Microscopy for Investigation of Material Nanostructures-Embracing the Ultrasmall, Ultrafast, and the Invisible
The goal of this grant was the development of a new type of scanning acoustic microscope for nanometer resolution ultrasound imaging, based on ultrafast optoacoustics (>GHz). In the microscope, subpicosecond laser pulses was used to generate and detect very high frequency ultrasound with nanometer wavelengths. We report here on the outcome of the 3-year DOE/BES grant which involved the design, multifaceted construction, and proof-of-concept demonstration of an instrument that can be used for quantitative imaging of nanoscale material features � including features that may be buried so as to be inaccessible to conventional lightwave or electron microscopies. The research program has produced a prototype scanning optoacoustic microscope which, in combination with advanced computational modeling, is a system-level new technology (two patents issues) which offer novel means for precision metrology of material nanostructures, particularly those that are of contemporary interest to the frontline micro- and optoelectronics device industry. For accomplishing the ambitious technical goals, the research roadmap was designed and implemented in two phases. In Phase I, we constructed a �non-focusing� optoacoustic microscope instrument (�POAM�), with nanometer vertical (z-) resolution, while limited to approximately 10 micrometer scale lateral recolution. The Phase I version of the instrument which was guided by extensive acoustic and optical numerical modeling of the basic underlying acoustic and optical physics, featured nanometer scale close loop positioning between the optoacoustic transducer element and a nanostructured material sample under investigation. In phase II, we implemented and demonstrated a scanning version of the instrument (�SOAM�) where incident acoustic energy is focused, and scanned on lateral (x-y) spatial scale in the 100 nm range as per the goals of the project. In so doing we developed advanced numerical simulations to provide computational models of the focusing of multi-GHz acoustic waves to the nanometer scale and innovated a series fabrication approaches for a new type of broadband high-frequency acoustic focusing microscope objective by applying methods on nanoimprinting and focused-ion beam techniques. In the following, the Phase I and Phase II instrument development is reported as Section II. The first segment of this section describes the POAM instrument and its development, while including much of the underlying ultrafast acoustic physics which is common to all of our work for this grant. Then, the science and engineering of the SOAM instrument is described, including the methods of fabricating new types of acoustic microlenses. The results section is followed by reports on publications (Section III), Participants (Section IV), and statement of full use of the allocated grant funds (Section V).
Nurmikko, Arto; Humphrey, Maris
Printing 3D Catalytic Devices | The Ames Laboratory
Printing 3D Catalytic Devices Ames Laboratory scientist Igor Slowing discusses using 3D printers to create new materials, including catalysts...
Energy Science and Technology Software Center (OSTI)
003029WKSTN00 Delineation of nuclear structures in 3D multicellular systems� https://vision.lbl.gov/Software/3DMorphometry/�
Nanostructure, Chemistry and Crystallography of Iron Nitride...
Nanostructure, Chemistry and Crystallography of Iron Nitride Magnetic Materials by Ultra-High-Resolution Electron Microscopy and Related Methods Nanostructure, Chemistry and...
3D2D3D photonic crystal heterostructures fabricated by direct laser writing
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
3D heart reconstruction.
??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
003188MLTPL00 F3D Image Processing and Analysis for Many - and Multi-core Platforms� http://camera.lbl.gov/software�
Surface Anchoring of Nematic Phase on Carbon Nanotubes: Nanostructure of Ultra-High Temperature Materials
Nuclear energy is a dependable and economical source of electricity. Because fuel supply sources are available domestically, nuclear energy can be a strong domestic industry that can reduce dependence on foreign energy sources. Commercial nuclear power plants have extensive security measures to protect the facility from intruders [1]. However, additional research efforts are needed to increase the inherent process safety of nuclear energy plants to protect the public in the event of a reactor malfunction. The next generation nuclear plant (NGNP) is envisioned to utilize a very high temperature reactor (VHTR) design with an operating temperature of 650-1000�?°C [2]. One of the most important safety design requirements for this reactor is that it must be inherently safe, i.e., the reactor must shut down safely in the event that the coolant flow is interrupted [2]. This next-generation Gen IV reactor must operate in an inherently safe mode where the off-normal temperatures may reach 1500�?°C due to coolant-flow interruption. Metallic alloys used currently in reactor internals will melt at such temperatures. Structural materials that will not melt at such ultra-high temperatures are carbon/graphtic fibers and carbon-matrix composites. Graphite does not have a measurable melting point; it is known to sublime starting about 3300�?°C. However, neutron radiation-damage effects on carbon fibers are poorly understood. Therefore, the goal of this project is to obtain a fundamental understanding of the role of nanotexture on the properties of resulting carbon fibers and their neutron-damage characteristics. Although polygranular graphite has been used in nuclear environment for almost fifty years, it is not suitable for structural applications because it do not possess adequate strength, stiffness, or toughness that is required of structural components such as reaction control-rods, upper plenum shroud, and lower core-support plate [2,3]. For structural purposes, composites consisting of strong carbon fibers embedded in a carbon matrix are needed. Such carbon/carbon (C/C) composites have been used in aerospace industry to produce missile nose cones, space shuttle leading edge, and aircraft brake-pads. However, radiation-tolerance of such materials is not adequately known because only limited radiation studies have been performed on C/C composites, which suggest that pitch-based carbon fibers have better dimensional stability than that of polyacrylonitrile (PAN) based fibers [4]. The thermodynamically-stable state of graphitic crystalline packing of carbon atoms derived from mesophase pitch leads to a greater stability during neutron irradiation [5]. The specific objectives of this project were: (i) to generating novel carbonaceous nanostructures, (ii) measure extent of graphitic crystallinity and the extent of anisotropy, and (iii) collaborate with the Carbon Materials group at Oak Ridge National Lab to have neutron irradiation studies and post-irradiation examinations conducted on the carbon fibers produced in this research project.
Ogale, Amod A
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...
3D Plasmon Ruler
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)
3D Computer Vision and Video Computing 3D Vision3D Vision
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 email@example.com #12;3D Computer Vision and Video Computing 3D Vision3D Vision Closely Related Disciplines Image Processing images to mages Computer
Zhu, Zhigang
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 firstname.lastname@example.com 3D Computer Vision and Video Computing 3D Vision3D Vision Closely Related Disciplines Image Processing images to mages Computer
Three-dimensional graphene/LiFePO{sub 4} nanostructures as cathode materials for flexible lithium-ion batteries
Graphical abstract: Graphene/LiFePO{sub 4} composites as a high-performance cathode material for flexible lithium-ion batteries have been prepared by using a co-precipitation method to synthesize graphene/LiFePO4 powders as precursors and then followed by a solvent evaporation process. - Highlights: � Flexible LiFePO{sub 4}/graphene films were prepared first time by a solvent evaporation process. � The flexible electrode exhibited a high discharge capacity without conductive additives. � Graphene network offers the electrode adequate strength to withstand repeated flexing. - Abstract: Three-dimensional graphene/LiFePO{sub 4} nanostructures for flexible lithium-ion batteries were successfully prepared by solvent evaporation method. Structural characteristics of flexible electrodes were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM) and scanning electron microscopy (SEM). Electrochemical performance of graphene/LiFePO{sub 4} was examined by a variety of electrochemical testing techniques. The graphene/LiFePO{sub 4} nanostructures showed high electrochemical properties and significant flexibility. The composites with low graphene content exhibited a high capacity of 163.7 mAh g{sup ?1} at 0.1 C and 114 mAh g{sup ?1} at 5 C without further incorporation of conductive agents.
Ding, Y.H., E-mail: email@example.com [College of Chemical Engineering, Xiangtan University, Hunan 411105 (China); Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China); Ren, H.M. [Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China); Huang, Y.Y. [BTR New Energy Materials Inc., Shenzhen 518000 (China); Chang, F.H.; Zhang, P. [Institute of Rheology Mechanics, Xiangtan University, Hunan 411105 (China)
3D Printing Prof. Hank Dietz & Paul Eberhart
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"
Quantum 3D superstrings
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
Introduction to 3D Printing
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
Complexed Multifunctional Metallic and Chalcogenide Nanostructures as Theranostic Agents.
??Nanostructures have attracted substantial attention due to their distinctive properties and various applications. Nanostructures consisting of multiple morphologies and/or materials have recently become the focus� (more)
Young, Joseph
3d X 3d X SrTiO3Ti 2p 3d
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
Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended...
3D scanning for personal 3D printing: build your own desktop 3D scanner
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
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 email@example.com 3D Computer Vision and Video Computing Stereo VisionStereo Vision Problem Infer 3D structure of a scene from two or more images taken
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 email@example.com 3D Computer Vision and Video Computing Stereo VisionStereo Vision Problem Infer 3D structure of a scene from two or more images
ICCV 2013 Submission #1603. CONFIDENTIAL REVIEW COPY. DO NOT DISTRIBUTE. Efficient 3D Scene Labeling Using Fields of Trees -Supplementary Material
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
Nanostructured thin film thermoelectric composite materials using conductive polymer PEDOT:PSS
Thermoelectric materials have the ability to convert heat directly into electricity. This clean energy technology has advantages over other renewable technologies in that it requires no sunlight, has no moving parts, and ...
Kuryak, Chris A. (Chris Adam)
Optical Properties of 3D Printable Plastics in the THz Regime and their Application for 3D Printed THz Optics
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�
3D modeling with silhouettes
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)
Slicing a 3D Model
This chapter and the next are the core of this book�s explanation of the 3D printing process. 3D printers cannot use a computer...slicing.
Joan Horvath
The Desktop 3D Printer
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...
3 D interactive pictorial maps
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
Facile synthesis of nanostructured vanadium oxide as cathode materials for efficient Li-ion batteries
approximately 100 nm in width and 12 mm in length have been fabricated via the hydrothermal process microspheres;10 hydrothermal synthesis of VO2 (B) nanobelts,11,12 nanorods,13 nanoflakes and nanoflowers.14 materials, long fabrication times and complicated processing methods, which in turn result in a high cost
Cao, Guozhong
3D Printed Bionic Ears
(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
Vanadium oxide based nanostructured materials for catalytic oxidative dehydrogenation of propane : effect of heterometallic centers on the catalyst performance.
Catalytic properties of a series of new class of catalysts materials-[Co{sub 3}(H{sub 2}O){sub 12}V{sub 18}O{sub 42} (XO{sub 4})].24H{sub 2}O (VNM-Co), [Fe{sub 3}(H{sub 2}O){sub 12}V{sub 18}O{sub 42}(XO{sub 4})].24H{sub 2}O (VNM-Fe) (X = V, S) and [H{sub 6}Mn{sub 3}(H{sub 2}O){sub 12}V{sub 18}O{sub 42}(VO{sub 4})].30H{sub 2}O for the oxidative dehydrogenation of propane is studied. The open-framework nanostructures in these novel materials consist of three-dimensional arrays of {l_brace}V{sub 18}O{sub 42}(XO{sub 4}){r_brace} (X = V, S) clusters interconnected by {l_brace}-O-M-O-{r_brace} (M = Mn, Fe, Co) linkers. The effect of change in the heterometallic center M (M = Mn, Co, Fe) of the linkers on the catalyst performance was studied. The catalyst material with Co in the linker showed the best performance in terms of propane conversion and selectivity at 350 C. The material containing Fe was most active but least selective and Mn containing catalyst was least active. The catalysts were characterized by Temperature Programmed Reduction (TPR), BET surface area measurement, Diffuse Reflectance Infrared Fourier Transform Spectroscopy, and X-ray Absorption Spectroscopy. TPR results show that all three catalysts are easily reducible and therefore are active at relatively low temperature. In situ X-ray absorption near edge spectroscopy (XANES) and extended X-ray absorption fine structure spectroscopy (EXAFS) studies revealed that the oxidation state of Co(II) remained unchanged up to 425 C (even after pretreatment). The reduction of Co(II) into metallic form starts at 425 C and this process is completed at 600 C.
Khan, M. I.; Deb, S.; Aydemir, K.; Alwarthan, A. A.; Chattopadhyay, S.; Miller, J. T.; Marshall, C. L. (Chemical Sciences and Engineering Division); (Illinois Inst. of Tech.); (King Saud Univ.)
Energetic ion bombardment can lead to the development of complex and diverse nanostructures on or beneath the material surface through induced self-organization processes. These self-organized structures have received particular interest recently as promising candidates as simple, inexpensive, and large area patterns, whose optical, electronic and magnetic properties are different from those in the bulk materials [1-5]. Compared to the low mass efficiency production rate of lithographic methods, these self-organized approaches display new routes for the fabrication of nanostructures over large areas in a short processing time at the nanoscale, beyond the limits of lithography [1,4]. Although it is believed that surface nanostructure formation is based on the morphological instability of the sputtered surface, driven by a kinetic balance between roughening and smoothing actions [6,7], the fundamental mechanisms and experimental conditions for the formation of these nanostructures has still not been well established, the formation of the 3-D naopatterns beneath the irradiated surface especially needs more exploration. During the last funding period, we have focused our efforts on irradiation-induced nanostructures in a broad range of materials. These structures have been studied primarily through in situ electron microscopy during electron or ion irradiation. In particular, we have performed studies on 3-D void/bubble lattices (in metals and CaF2), embedded sponge-like porous structure with uniform nanofibers in irradiated semiconductors (Ge, GaSb, and InSb), 2-D highly ordered pattern of nanodroplets (on the surface of GaAs), hexagonally ordered nanoholes (on the surface of Ge), and 1-D highly ordered ripple and periodic arrays (of Cu nanoparticles) [3,8-11]. The amazing common feature in those nanopatterns is the uniformity of the size of nanoelements (nanoripples, nanodots, nanovoids or nanofibers) and the distance separating them. Our research focuses on the understanding of fundamental scientific basis for the irradiation-induced self-organization processes. The fundamental physical mechanisms underlying ordered pattern formation, which include defect production and migration, ion sputtering, redeposition, viscous flow and diffusion, are investigated through a combination of modeling and in situ and ex-situ observations [3,9,11]. In addition, these nanostructured materials exhibit considerable improvement of optical properties [9,12,13]. For example, patterned Ge with a hexagonally ordered, honeycomb-like structure of nanoscale holes possesses a high surface area and a considerably blue-shifted energy gap [9], and oxidation of ordered Ga droplets shows noticeable enhancement of optical transmission [12]. This research has addressed nanopattern formation in a variety of materials under ion bombardment and provided a fundamental understanding of the dynamic mechanisms involved. In addition, have also stared to systematically investigate pattern formation under ion irradiation for more systems with varied experimental conditions and computation, including the collaboration with Dr. Veena Tikare of Sandia National Laboratory with a hybrid computation method at the ending this grant. A more detailed relationship between nanostructure formation and experimental conditions will be revealed with our continued efforts.
Wang, Lumin [Regents of the University of Michigan; Lu, Wei [Regents of the University of Michigan
3D printing of multifunctional nanocomposites
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
3D World Building System
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.
ScienceCinema (OSTI)
Nanostructured Materials by Machining
Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).
Three dimensional, bulk nanostructured materials and composites have matured into a new class of materials that is being considered in a variety of engineering applications. The successful synthesis of large-scale nanostructured materials is of
Engineering and Materials Science at UC Davis., where he was promoted to Distinguished Professor in 2007. His Science University of California, Davis School for Engineering of Matter, Transport & Energy Reception of the University of California, Davis, from January 2009 to December 2010. Prior to arriving at Davis, Lavernia
Nanostructures in Skutterudites | Department of Energy
& Publications Nanostructures in Skutterudites Recent Progress in the Development of N-type Skutterudites Overview of Research on Thermoelectric Materials and Devices in China...
Nanostructured Thermoelectrics. The New Paradigm | Department...
figure of merit of bulk nanostructured thermoelectric and materials using low cost earth abundant elements kanatzidis.pdf More Documents & Publications DOENSF Thermoelectric...
Nanostructured photocatalysts for green chemistry and sustainable...
Nanostructured photocatalysts for green chemistry and sustainable catalysis Nanoscale materials with precise structure and composition offer unique opportunities in the development...
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
Imaging atoms in 3-D
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
3D nonparametric neural identification
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
Synthesis and Characterization of Cathode Materials | Department...
Documents & Publications 3-D Nano-Structured CarbonTin Composite Anodes Phase Behavior and Solid State Chemistry of Olivines Phase Behavior and Solid State Chemistry in Olivines...
Molecular nanostructure and nanotechnology
...Molecular nanostructure and nanotechnology compiled and edited by Chunli...Molecular nanostructure and nanotechnology Chunli Bai 1 Chen Wang 2...Molecular nanostructure and nanotechnology . This Theme Issue exemplifies...
Probing Nanostructures for Photovoltaics: Using atomic force microscopy and other tools to characterize nanoscale materials for harvesting solar energy.
??The ability to make materials with nanoscale dimensions opens vast opportunities for creating custom materials with unique properties. The properties of materials on the nanoscale� (more)
Zaniewski, Anna Monro
E-Print Network 3.0 - advanced 3d power Sample Search Results
Materials Science and Engineering, University of Toronto Collection: Materials Science ; Energy Storage, Conversion and Utilization 23 Physical Design Automation Challenges for 3D...
BUILD YOUR OWN 3D GLASSES! Oaktag (sturdy poster board)
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
3D Polygon Rendering Pipeline Michael Kazhdan
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
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
Generation of Energy Efficient Trajectories for NIMS3D, a Three-Dimensional Cabled Robot
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.
Voxel octree intersection based 3D scanning.
??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
3D Printed Molecules and Extended Solid Models for Teaching Symmetry and Point Groups
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
Energy Savings in 3-D | ornl.gov
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.
3D Printed Quantum Dot Light-Emitting Diodes
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
3D Printed Shelby Cobra
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.
3D Imaging Technology Conference & Applications Workshop
2nd London 3D Imaging Technology Conference & Applications Workshop 3D scanning and vertical, Greece, email@example.com 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
3D N = 4 Gauge Theory Compactication
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
Probing Nanostructures for Photovoltaics: Using atomic force microscopy and other tools to characterize nanoscale materials for harvesting solar energy
4.2.1 Organic solar cellOrganic Solar Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3.1 Organic solar cell materials . . . . .
Fast 3D keypoints detector and descriptor for view-based 3D objects recognition
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
Spec2Fab: A reducer-tuner model for translating specifications to 3D prints
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
Novel photonic phenomena in nanostructured material systems with applications and mid-range efficient insensitive wireless energy-transfer
A set of novel mechanisms for the manipulation of light in the nanoscale is provided. In the class of all-dielectric material systems, techniques for the suppression of radiative loss from incomplete-photonic-bandgap ...
Karalis, Aristeidis, 1978-
A Brief History of 3D Printing
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...
Part removal of 3D printed parts
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 ...
Pe�a Doll, Mateo
ArrangePak-3D User's Manual
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
Digital Pygmalion Accurate 3D reconstruction
;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
3D Printing Prof. Hank Dietz
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
3D Sparse Representations Lanusse F. a
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
3D Imaging Of Wet Granular Matter
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
3D Postprozessor Diplomarbeit von Samuel Gerber
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
Supersymmetric Gauge Theories in 3d
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
Mechanical Behavior of Indium Nanostructures Print Mechanical Behavior of Indium Nanostructures Print Indium is a key material in lead-free solder applications for microelectronics due to its excellent wetting properties, extended ductility, and high electrical conductivity. With the size of electronic devices continuing to shrink and the promise of indium-based nanotechnologies, it is important to develop a fundamental understanding of this material's small-scale mechanical properties and reliability. Researchers from the University of Waterloo, California Institute of Technology, and Los Alamos National Laboratory have collaborated with a team at ALS Beamline 12.3.2 to investigate the small-scale mechanics of indium nanostructures. Scanning x-ray microdiffraction (μSXRD) studies revealed that the indium microstructure is typical of a well-annealed metal, containing very few initial dislocations and showing close-to-theoretical strength.
2D 3D * iklee)@yonsei.ac.kr
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
3D printing facilitated scaffold-free tissue unit fabrication
Tissue spheroids hold great potential in tissue engineering as building blocks to assemble into functional tissues. To date, agarose molds have been extensively used to facilitate fusion process of tissue spheroids. As a molding material, agarose typically requires low temperature plates for gelation and/or heated dispenser units. Here, we proposed and developed an alginate-based, direct 3D mold-printing technology: 3D printing microdroplets of alginate solution into biocompatible, bio-inert alginate hydrogel molds for the fabrication of scaffold-free tissue engineering constructs. Specifically, we developed a 3D printing technology to deposit microdroplets of alginate solution on calcium containing substrates in a layer-by-layer fashion to prepare ring-shaped 3D hydrogel molds. Tissue spheroids composed of 50% endothelial cells and 50% smooth muscle cells were robotically placed into the 3D printed alginate molds using a 3D printer, and were found to rapidly fuse into toroid-shaped tissue units. Histological and immunofluorescence analysis indicated that the cells secreted collagen type I playing a critical role in promoting cell�cell adhesion, tissue formation and maturation.
Yu Tan; Dylan J Richards; Thomas C Trusk; Richard P Visconti; Michael J Yost; Mark S Kindy; Christopher J Drake; William Scott Argraves; Roger R Markwald; Ying Mei
Nanostructured photovoltaics
Energy and the environment are two of the most important global issues that we currently face. The development of clean and sustainable energy resources is essential to reduce greenhouse gas emission and meet our ever-increasing demand for energy. Over the last decade photovoltaics, as one of the leading technologies to meet these challenges, has seen a continuous increase in research, development and investment. Meanwhile, nanotechnology, which is considered to be the technology of the future, is gradually revolutionizing our everyday life through adaptation and incorporation into many traditional technologies, particularly energy-related technologies, such as photovoltaics. While the record for the highest efficiency is firmly held by multijunction III�V solar cells, there has never been a shortage of new research effort put into improving the efficiencies of all types of solar cells and making them more cost effective. In particular, there have been extensive and exciting developments in employing nanostructures; features with different low dimensionalities, such as quantum wells, nanowires, nanotubes, nanoparticles and quantum dots, have been incorporated into existing photovoltaic technologies to enhance their performance and/or reduce their cost. Investigations into light trapping using plasmonic nanostructures to effectively increase light absorption in various solar cells are also being rigorously pursued. In addition, nanotechnology provides researchers with great opportunities to explore the new ideas and physics offered by nanostructures to implement advanced solar cell concepts such as hot carrier, multi-exciton and intermediate band solar cells. This special issue of Journal of Physics D: Applied Physics contains selected papers on nanostructured photovoltaics written by researchers in their respective fields of expertise. These papers capture the current excitement, as well as addressing some open questions in the field, covering topics including the III�V quantum well superlattice and quantum dot solar cells, Si quantum dot tandem cells, nanostructure-enhanced dye-sensitized solar cells and nanopatterned organic solar cells. We thank all the authors and reviewers for their contribution to this special issue. Special thanks are due to the journal's Publisher, Dr Olivia Roche and the editorial and publishing staff for their help and support.
Lan Fu; H Hoe Tan; Chennupati Jagadish
Thermoelectric Bulk Materials from the Explosive Consolidation of Nanopowders
Describes technique of explosively consolidating nanopowders to yield fully dense, consolidated, nanostructured thermoelectric material
Biomedical applications of nanostructured polymer films
Functional polymeric thin films are often stratified with nanometer level structure and distinct purposes for each layer. These nanostructured polymeric materials are useful in a wide variety of applications including drug ...
Gilbert, Jonathan Brian
Hollywood 3D: Recognizing Actions in 3D Natural Scenes Simon Hadfield Richard Bowden
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
3D Imaging Symposium, Friday 11:00 3D APPROACHES IN PALEOANTHROPOLOGY USING GEOMETRIC MOR-
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
Computation of optimized arrays for 3-D electrical imaging surveys
......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
Dendritic metal nanostructures
Dendritic metal nanostructures made using a surfactant structure template, a metal salt, and electron donor species.
Shelnutt, John A. (Tijeras, NM); Song, Yujiang (Albuquerque, NM); Pereira, Eulalia F. (Vila Nova de Gaia, PT); Medforth, Craig J. (Winters, CA)
3D Multiprocessor with 3D NoC Architecture Based on Tezzaron Technology
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
3D Site Response using NLSSI
3D Site Response using NLSSI Justin Coleman, P.E. Bob Spears Nuclear Science and Technology Idaho National Laboratory October 22, 2014
Interfacing nanostructures to biological cells
Disclosed herein are methods and materials by which nanostructures such as carbon nanotubes, nanorods, etc. are bound to lectins and/or polysaccharides and prepared for administration to cells. Also disclosed are complexes comprising glycosylated nanostructures, which bind selectively to cells expressing glycosylated surface molecules recognized by the lectin. Exemplified is a complex comprising a carbon nanotube functionalized with a lipid-like alkane, linked to a polymer bearing repeated .alpha.-N-acetylgalactosamine sugar groups. This complex is shown to selectively adhere to the surface of living cells, without toxicity. In the exemplified embodiment, adherence is mediated by a multivalent lectin, which binds both to the cells and the .alpha.-N-acetylgalactosamine groups on the nanostructure.
Chen, Xing; Bertozzi, Carolyn R.; Zettl, Alexander K.
3-D seismology in the Arabian Gulf
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)
3, 35433588, 2003 3-D air pollution
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 (firstname.lastname@example.com) 3543 #12;ACPD 3, 35433588, 2003 3-D air pollution
BEAMS3D Neutral Beam Injection Model
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
Application of carbonized nanostructured polyaniline in electrocatalysis and electrical energy storage.
??The aim of this doctoral dissertation is to study nitrogen-containing nanostructured carbon materials, denoted as C-PANI, C-PANI.DNSA and C-PANI.SSA, prepared by the carbonization of nanostructured� (more)
Gavrilov Nemanja
3D modellering og pathfinding i Java; 3D Modeling and Pathfinding in Java.
??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
Novel Ferroelectric Nanostructures for Nanoelectronic Devices
Scientific Highlight 31 March 2008 Novel Ferroelectric Nanostructures for Nanoelectronic Devices New approaches to the fabrication of ferroelectric nanostructures onto substrates are critical for the development of competitive functional devices that successfully integrate at nanoscale ferroelectrics as alternative materials in the microelectronic industry. These approaches have to meet reliability and utilization requirements to realize a cost-effective production of an increasing demand for ultra-high-density memories or nanometric electromechanical systems. An important challenge in the fabrication of ferroelectric nanomaterials supported onto substrates is the ability to fabricate an organized arrangement of the nanostructures. This is a key point for the applications of ferroelectrics in nanoelectronic devices.
3D view with pst-vue3d Manuel Luque (email@example.com)
3D view with pst-vue3d Manuel Luque (email@example.com) in cooperation with Herbert Vo�? (email@example.com) 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.
3D packaging for integrated circuit systems
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.
Investigations in massive 3D gravity
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)
N-Doped Graphene�VO2(B) Nanosheet-Built 3D Flower Hybrid for Lithium Ion Battery
N-Doped Graphene�VO2(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
Thermoelectric Bulk Materials from the Explosive Consolidation...
explosively consolidating nanopowders to yield fully dense, consolidated, nanostructured thermoelectric material nemir.pdf More Documents & Publications Enhancing the...
3D MHD Modeling of the Galaxy
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. G�mez; D. P. Cox
Printed 3D Multi-View Images
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
Internet video streaming using 3-D SPIHT
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
3D face recognition with wireless transportation
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
Three dimensional (3D) optical information processing
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
3D Spectroscopy and the Virtual Observatory
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
002440MLTPL00 3D Torus Routing Engine Module for OFA OpenSM v. 1.0� http://www.openfabrics.org/git?p=sashak/management.git;a=sum�
Studies of the 3D surface roughness height
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)
Construction and Properties of Structure- and Size-controlled Micro/nano-Energetic Materials
Abstract This article presents a comprehensive review of recent progress of research dedicated to structure- and size-controlled micro/nano-energetic materials. The development of the construction strategies for achieving zero-dimensional (0D), one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) micro/nanostructures from energetic molecules is introduced. Also, an overview of the unique properties induced by micro/nanostructures and size effects is provided. Special emphasis is focused on the size-dependent properties that are different from those of the conventional micro-sized energetic materials, such as thermal decomposition, sensitivity, combustion and detonation, and compaction behaviors. A conclusion and our view of the future development of micro/nano-energetic materials and devices are given.
Bing Huang; Min-hua Cao; Fu-de Nie; Hui Huang; Chang-wen Hu
Local Motors Begins Their Six Day Quest to 3D Print the 'Strati...
Broader source: Energy.gov (indexed) [DOE]
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...
Beyond 3-D X-ray Imaging: Methodology Development and Applications...
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...
Argonne CNM News: Casimir Force Reduction through Nanostructuring
Casimir Force Reduction through Nanostructuring Casimir Force Reduction through Nanostructuring Casimir force reduction (a) Configuration used to measure the Casimir force between a gold-coated sphere and a nanostructured grating. The sphere is attached to the torsional plate of a micromechanical oscillator and the nanostructured grating is fixed to a single-mode optical fiber. SEM images: (b) nanostructured grating limited by two uniform films (scale bar, 100 µm). (c) Magnified grating showing the high spatial uniformity (scale bar, 400 nm). (d) cross-section of a single grating element (scale bar, 100 nm). By nanostructuring one of two interacting metal surfaces at scales below the plasma wavelength, a new regime in the Casimir force was observed by researchers in the Center for Nanoscale Materials Nanofabrication & Devices
3D Self-Portraits Etienne Vouga2
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.
3D Engineered Models for Construction Support & Available Tools
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
3D Keypoints Detection for Objects Recognition Ayet Shaiek1
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
Sculplexity: Sculptures of Complexity using 3D printing
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
D. S. Reiss; J. J. Price; T. S. Evans
Spiso-3D operation manual (US Patent 8,077,945 B2) Section 1. Introduction : Spiso-3D is an automated software calculating optical 3D
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
Development of a physical 3D anthropomorphic breast phantom
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)
Superplastic forming using NIKE3D
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.
3D Modeling Engine Representation Summary Report
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
3D-3D registration of free formed objects using shape and texture Fernando C. M. Martins
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
A 3D Printed Fluidic Device that Enables Integrated Features
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
A 3D Computer Simulation Test of the Leibowitz Hypothesis
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
3D Magnetotelluic characterization of the Coso Geothermal Field
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
Abnormal Cyclibility in Ni@Graphene Core�Shell and Yolk�Shell Nanostructures for Lithium Ion Battery Anodes
Abnormal Cyclibility in Ni@Graphene Core�Shell and Yolk�Shell Nanostructures for Lithium Ion Battery Anodes ... A new graphene-based hybrid nanostructure is designed for anode materials in lithium-ion batteries. ...
Huawei Song; Hao Cui; Chengxin Wang
Compositional Variation Within Hybrid Nanostructures
Compositional Variation Within Hybrid Nanostructures Print Compositional Variation Within Hybrid Nanostructures Print The inherently high surface area of bimetallic nanoparticles makes them especially attractive materials for heterogeneous catalysis. The ability to selectively grow these and other types of nanoparticles on a desired surface is ideal for the fabrication of higher-order nanoscale architectures. However, the growth mechanism for bimetallic nanoparticles on a surface is expected to be quite different than that for free particles in solution. The altered growth process can lead to modulations in stoichiometry, elemental homogeneity, and surface structure, all of which can profoundly affect the catalytic or magnetic properties of the bimetallic nanoparticles. Now, researchers have experimentally observed these subtle structural differences through x-ray absorption spectroscopic studies at ALS Beamline 10.3.2. The results illustrate how directed nanoparticle growth on specific surfaces can lead to hybrid nanomaterials with a structurally different bimetallic component than its unhybridized counterpart.
Toward Lighter, Stiffer Materials
...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
Physical sectioning in 3D biological microscopy
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
Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...
Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced...
Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization DOE...
Carbon nanostructures-elixir or poison?
Carbon nanostructures-elixir or poison? Carbon nanostructures-elixir or poison? Carbon nanostructures-elixir or poison? A LANL toxicologist and a team of researchers have documented potential cellular damage from "fullerenes"-soccer-ball-shaped, cage-like molecules composed of 60 carbon atoms. March 31, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.
3-D Model for Deactivation & Decommissioning
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
Fiber reinforcement during 3D printing
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; J�rgen Groll; Uwe Gbureck
3-D Metals | Open Energy Information
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":""}]}
Synthesis of nanostructured nanoclay-zirconia multilayers: a feasibility study
This paper reports the first effort to synthesize a new class of inorganic nanostructured materials consisting of alternating ultrathin layers of nanoclays and oxide ceramics. A novel solution-based layer-by-layer (LBL) deposition technique was developed ...
Hao Chen; Guoping Zhang; Kathleen Richardson; Jian Luo
3D-Printing Spatially Varying BRDFs
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
3D Imaging with Holographic Tomography
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
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
3D Model Retrieval based on Adaptive Views Clustering
3D Model Retrieval based on Adaptive Views Clustering Tarik Filali Ansary1 , Mohamed Daoudi2 , firstname.lastname@example.com 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
Stress relief: improving structural strength of 3D printable objects
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; Radom�r M?ch
Mesoporous Carbon-based Materials for Alternative Energy Applications
processing ceramics into nanostructured materials, with notable examples based on sol�gel chemistry, pyrolysis, and hydrothermal
Cross, Kimberly Michelle
ITP Nanomanufacturing: Nanostructured Superhydrophobic Coatings
Large-scale Implementation of Nanostructured Superhydrophobic (SH) Powders for Breakthrough Energy Savings
Sonochemical Synthesis of Nanostructured Molybdenum Sulfide
to nanophase transition metal powders, alloys, carbides, and colloids.10-13 We report here a simple-4 The established methods for the preparation of nanostructured inorganic materials include metal evaporation,5 reduction of metal salts,6,7 and thermal decomposition and laser pyrolysis of organometallic compounds.8
Suslick, Kenneth S.
Elongated nanostructures for radial junction solar cells
In solar cell technology, the current trend is to thin down the active absorber layer. The main advantage of a thinner absorber is primarily the reduced consumption of material and energy during production. For thin film silicon (Si) technology, thinning down the absorber layer is of particular interest since both the device throughput of vacuum deposition systems and the stability of the devices are significantly enhanced. These features lead to lower cost per installed watt peak for solar cells, provided that the (stabilized) efficiency is the same as for thicker devices. However, merely thinning down inevitably leads to a reduced light absorption. Therefore, advanced light trapping schemes are crucial to increase the light path length. The use of elongated nanostructures is a promising method for advanced light trapping. The enhanced optical performance originates from orthogonalization of the light's travel path with respect to the direction of carrier collection due to the radial junction, an improved anti-reflection effect thanks to the three-dimensional geometric configuration and the multiple scattering between individual nanostructures. These advantages potentially allow for high efficiency at a significantly reduced quantity and even at a reduced material quality, of the semiconductor material. In this article, several types of elongated nanostructures with the high potential to improve the device performance are reviewed. First, we briefly introduce the conventional solar cells with emphasis on thin film technology, following the most commonly used fabrication techniques for creating nanostructures with a high aspect ratio. Subsequently, several representative applications of elongated nanostructures, such as Si nanowires in realistic photovoltaic (PV) devices, are reviewed. Finally, the scientific challenges and an outlook for nanostructured PV devices are presented.
Yinghuan Kuang; Marcel Di Vece; Jatindra K Rath; Lourens van Dijk; Ruud E I Schropp
3D REGULARIZED VELOCITY FROM 3D DOPPLER RADIAL VELOCITY X. Chen, J.L. Barron, R.E. Mercer
3D REGULARIZED VELOCITY FROM 3D DOPPLER RADIAL VELOCITY X. Chen, J.L. Barron, R.E. Mercer Dept, Ontario, M3H 5T4 email@example.com 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
Spiso-3D (USA Patent 8,077,945 B2) Section 1. "Spiso-3D" 3
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
3D as a content, 3D as a metaphor. Experiments on distributing and interfacing information about historic artefacts using
3D as a content, 3D as a metaphor. Experiments on distributing and interfacing information about MAP, France firstname.lastname@example.com email@example.com 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
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
3D GAUSSIAN DESCRIPTOR: A NEW DESCRIPTOR FOR 3D MODELS Mohamed Chaouch and Anne Verroust-Blondet
3D GAUSSIAN DESCRIPTOR: A NEW DESCRIPTOR FOR 3D MODELS Mohamed Chaouch and Anne Verroust.chaouch, email@example.com ABSTRACT This paper presents a new approach to 3D shape compari- son Shape Benchmark database. Index Terms-- 3D shape retrieval, Gaussian transform 1. INTRODUCTION
1998 3D GIS vs Advanced visualisation -Hack & Ozmutlu -LWI Seminar 1 3D-GIS vs Advanced Visualization
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
Does 3D increase the enjoyment experience? A comparative experiment on the psychological effects of 3D
[Figure not available: see fulltext.] Keywords: 3D, Emotional Fatigue, Enjoyment, Experiment, Limited Capacity
Qihao Ji; Jessica Tanca; Sophie Janicke
Design, Optimization, Calibration, and a Case Study of a 3D-Printed, Low-cost Fingertip Sensor for Robotic Manipulation
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
Nanostructure templating using low temperature atomic layer deposition
Methods are described for making nanostructures that are mechanically, chemically and thermally stable at desired elevated temperatures, from nanostructure templates having a stability temperature that is less than the desired elevated temperature. The methods comprise depositing by atomic layer deposition (ALD) structural layers that are stable at the desired elevated temperatures, onto a template employing a graded temperature deposition scheme. At least one structural layer is deposited at an initial temperature that is less than or equal to the stability temperature of the template, and subsequent depositions made at incrementally increased deposition temperatures until the desired elevated temperature stability is achieved. Nanostructure templates include three dimensional (3D) polymeric templates having features on the order of 100 nm fabricated by proximity field nanopatterning (PnP) methods.
Grubbs, Robert K. (Albuquerque, NM); Bogart, Gregory R. (Corrales, NM); Rogers, John A. (Champaign, IL)
Creating Precise 3D Microstructures Using Laser Direct-write Bimetallic Thermal Resist Grayscale Photomasks
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.
3D reconstruction of tensors and vectors
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.
Injection of Electrons and Holes into Nanostructures
Injection of Electrons and Holes into Nanostructures Injection of Electrons and Holes into Nanostructures This program targets fundamental understanding of nanoscale charge transfer processes. The proposed work draws on the strengths of the Brookhaven Chemistry Department in the areas of electron transfer experiment and theory, and extends the area of inquiry to nanoscale processes. Electron/hole injection into a wire, a nanocrystal, a nanotube or other nanostructure in solution may be brought about by light absorption, by an electron pulse (pulse radiolysis, LEAF), by a chemical reagent, or through an electrode. These processes are being studied by transient methods by following conductivity, current, but most generally, spectroscopic changes in the solutions to determine the dynamics of charge injection. The observed transient spectra can also provide values for electron-transfer coupling elements and energetics. Theoretical/computational studies can help in materials design and in the interpretation of the experimental results. The experimental systems being examined include molecular wires and metal nanoclusters.
Speed-line for 3D animation
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
by three systems: the use of a 3D scanner, 3D photography and digital video camera, plus 3D SketchUp and 3D
Outerelo. Raimundo
3D Hollow Nanostructures as Building Blocks for Multifunctional Francesco De Angelis,*,
solar cells and light-emitting devices to photodetectors and ultrafast lasers, have been shown. However, the implementation of photonic/plasmonic devices in optofluidics and optoelectronics encounters some obstacles which plasmonic nanocavities able to accumulate the optical energy in a volume where liquid samples can be flowed
Pillared Graphene: A New 3?D Innovative Network Nanostructure Augments Hydrogen Storage
Nowadays people have turned into finding an alternative power source for everyday applications. One of the most promising energy fuels is hydrogen. It can be used as an energy carrier at small portable devices (e.g. laptops and/or cell phones) up to larger like cars. Hydrogen is considered as the perfect fuel. It can be burnt in combustion engines and the only by?product is water. For hydrogen?powered vehicles a big liming factor is the gas tank and is the reason for not using widely hydrogen in automobile applications. According to United States� Department of Energy (D.O.E.) the target for reversible hydrogen storage in mobile applications is 6% wt. and 45 gr. H2/L and these should be met by 2010.
Dimitrakakis K. Georgios; Tylianakis Emmanuel; Froudakis E. George
Rheology of nearly ideal 3d foams
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
Needle segmentation using 3D Hough transform in 3D TRUS guided prostate transperineal therapy
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)
Measuring Strong Nanostructures
Andy Minor of Berkeley Lab's National Center for Electron Microscopy explains measuring stress and strain on nanostructures with the In Situ Microscope. More information: http://newscenter.lbl.gov/press-relea...
Andy Minor
Anode materials for lithium-ion batteries
An anode material for lithium-ion batteries is provided that comprises an elongated core structure capable of forming an alloy with lithium; and a plurality of nanostructures placed on a surface of the core structure, with each nanostructure being capable of forming an alloy with lithium and spaced at a predetermined distance from adjacent nanostructures.
Sunkara, Mahendra Kumar; Meduri, Praveen; Sumanasekera, Gamini
3-D physical modeling of a complex salt canopy
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.
Nanostructures having high performance thermoelectric properties
The invention provides for a nanostructure, or an array of such nanostructures, each comprising a rough surface, and a doped or undoped semiconductor. The nanostructure is an one-dimensional (1-D) nanostructure, such a nanowire, or a two-dimensional (2-D) nanostructure. The nanostructure can be placed between two electrodes and used for thermoelectric power generation or thermoelectric cooling.
Yang, Peidong; Majumdar, Arunava; Hochbaum, Allon I; Chen, Renkun; Delgado, Raul Diaz
Toward a compact underwater structured light 3-D imaging system
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
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.
??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
Stereoscopic Presentations Taking the Difficulty out of 3D
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
Computational 3D and reflectivity imaging with high photon efficiency
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
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...
Ames Laboratory 3D printing technology research taking shape...
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,...
3D printing and simulation of naturally randomized cellular automata
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
3D Printing Comes of Age | Department of Energy
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...
Catalyst Cartography: 3D Super-Resolution Mapping of Catalytic...
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...
FMI Borehole Geology, Geomechanics and 3D Reservoir Modeling...
Geomechanics and 3D Reservoir Modeling Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: FMI Borehole Geology, Geomechanics and 3D Reservoir Modeling...
Characterizing tensile loading responses of 3D printed samples
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
Ames Lab 101: Real-Time 3D Imaging
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
3-D GRMHD Simulations of Generating Jets
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
K. -I. Nishikawa; S. Koide; K. Shibata; T. Kudoh; H. Sol
A 3D scanning system for biomedical purposes
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
Localization and 3D Reconstruction of Urban Scenes Using GPS
D models in Google earth · Manual modeling and texturing (sketch-up) · 3D model covers limited area
Haro, Antonio
3D Rendering and Ray Casting Michael Kazhdan
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
Using interactive 3-D visualization for public consultation
......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
- 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
Issues in the Development of 3D Icons Rob Erbacher
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.
3D PRINTING FOR INTELLIGENT METALLIC STRUCTURES M. Strantza1
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
3D RECONSTRUCTION FROM A SINGLE IMAGE Diego Rother
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
Fast 3D Scanning for Biometric Identification and Verification
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.
3D imaging and ranging by time-correlated single
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.
3D Scanning for Biometric Identification and Verification
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
3D discrete rotations using hinge angles Yohan Thibaulta,
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
3D Engineered Models for Stringless Paving Workshop
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
3D Laser Imaging at Highway Speed Kelvin CP Wang
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
The 3D jigsaw puzzle: mapping large indoor spaces
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
Analyzing 3D Images of the Brain NICHOLAS AYACHE
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
Slice and Dice, Peel and Stick: Emerging Methods for Nanostructure Fabrication
enables quasi-3D, curved, and other complex layouts. These ideas, particularly when taken together older methods based on contact printing, writ- ing, and molding. Over the past 1520 years, the White with emerging methods for transfer printing of nanomembranes and related solid nanostructures, have the strong
Rogers, John A.
Sandia National Laboratories: 3-D graphene architecture
graphene architecture Three-Dimensional Graphene Architectures On July 29, 2013, in Capabilities, Materials Science, News, News & Events, Office of Science, Research & Capabilities...
Eighteenth international conference 'Advanced technology in powder metallurgy and ceramics', 8�??12 September 2003 at Kiev, Ukraine. Section 'Nanostructured materials'
This article provides a brief introduction to the 18th international conference held by the Frantsevich Institute for Problems of Materials Science, on advanced technology in powder metallurgy and ceramics. Five papers from the conference appear in this issue of IJNT.
Valery Skorokhod; Leonid Chernyshev
Stack and cell modelling with SOFC3D: a computer program for the 3D simulations of
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
Mesoporous Nanostructured Nb-Doped Titanium Dioxide Microsphere Catalyst Supports for PEM Fuel Cell Electrodes
Mesoporous Nanostructured Nb-Doped Titanium Dioxide Microsphere Catalyst Supports for PEM Fuel Cell Electrodes ... The material has been investigated as cathode electrocatalyst support for polymer electrolyte membrane (PEM) fuel cells. ... doped titania; PEMFC; electrocatalyst; mesoporous materials; microspheres ...
Laure Chevallier; Alexander Bauer; Sara Cavaliere; Rob Hui; Jacques Rozi�re; Deborah J. Jones
Compositional Variation Within Compositional Variation Within Hybrid Nanostructures Compositional Variation Within Hybrid Nanostructures Print Wednesday, 29 September 2010 00:00 The inherently high surface area of bimetallic nanoparticles makes them especially attractive materials for heterogeneous catalysis. The ability to selectively grow these and other types of nanoparticles on a desired surface is ideal for the fabrication of higher-order nanoscale architectures. However, the growth mechanism for bimetallic nanoparticles on a surface is expected to be quite different than that for free particles in solution. The altered growth process can lead to modulations in stoichiometry, elemental homogeneity, and surface structure, all of which can profoundly affect the catalytic or magnetic properties of the bimetallic nanoparticles. Now, researchers have experimentally observed these subtle structural differences through x-ray absorption spectroscopic studies at ALS Beamline 10.3.2. The results illustrate how directed nanoparticle growth on specific surfaces can lead to hybrid nanomaterials with a structurally different bimetallic component than its unhybridized counterpart.
Process Development for Nanostructured Photovoltaics
Photovoltaic manufacturing is an emerging industry that promises a carbon-free, nearly limitless source of energy for our nation. However, the high-temperature manufacturing processes used for conventional silicon-based photovoltaics are extremely energy-intensive and expensive. This high cost imposes a critical barrier to the widespread implementation of photovoltaic technology. Argonne National Laboratory and its partners recently invented new methods for manufacturing nanostructured photovoltaic devices that allow dramatic savings in materials, process energy, and cost. These methods are based on atomic layer deposition, a thin film synthesis technique that has been commercialized for the mass production of semiconductor microelectronics. The goal of this project was to develop these low-cost fabrication methods for the high efficiency production of nanostructured photovoltaics, and to demonstrate these methods in solar cell manufacturing. We achieved this goal in two ways: 1) we demonstrated the benefits of these coatings in the laboratory by scaling-up the fabrication of low-cost dye sensitized solar cells; 2) we used our coating technology to reduce the manufacturing cost of solar cells under development by our industrial partners.
Elam, Jeffrey W.
Automatic Reconstruction of Surfaces and Scalar Fields from 3D Scans1 2
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
Science Highlight July 2011 Better Batteries through Nanoscale 3D Chemical Imaging
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.
Linear Scaling 3D Fragment Method for Large-scale Electronic Structure Calculations
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
Biomimetic Nanostructures: Creating
Biomimetic Biomimetic Nanostructures: Creating a High-Affinity Zinc-Binding Site in a Folded Nonbiological Polymer Byoung-Chul Lee, †,‡ Tammy K. Chu, † Ken A. Dill,* ,‡ and Ronald N. Zuckermann* ,† Biological Nanostructures Facility, The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, Graduate group in Biophysics and Department of Pharmaceutical Chemistry, 600 16th Street, UniVersity of CaliforniasSan Francisco, San Francisco, California 94143 Received March 21, 2008; E-mail: email@example.com; email@example.com Abstract: One of the long-term goals in developing advanced biomaterials is to generate protein-like nanostructures and functions from a completely nonnatural polymer. Toward that end, we introduced a high-affinity zinc-binding function into a peptoid (N-substituted glycine
Synthesis of porphyrin nanostructures
The present disclosure generally relates to self-assembly methods for generating porphyrin nanostructures. For example, in one embodiment a method is provided that includes preparing a porphyrin solution and a surfactant solution. The porphyrin solution is then mixed with the surfactant solution at a concentration sufficient for confinement of the porphyrin molecules by the surfactant molecules. In some embodiments, the concentration of the surfactant is at or above its critical micelle concentration (CMC), which allows the surfactant to template the growth of the nanostructure over time. The size and morphology of the nanostructures may be affected by the type of porphyrin molecules used, the type of surfactant used, the concentration of the porphyrin and surfactant the pH of the mixture of the solutions, and the order of adding the reagents to the mixture, to name a few variables.
Fan, Hongyou; Bai, Feng
2 MAG LAB REPORTS Volume 18 No. 1 CONDENSED MATTER SCIENCE Technique development, graphene, magnetism & magnetic materials, topological insulators, quantum fl uids & solids,...
Direct-Write of Silicon and Germanium Nanostructures
Direct-Write of Silicon and Germanium Nanostructures Print Direct-Write of Silicon and Germanium Nanostructures Print Nanostructured materials (nanowires, nanotubes, nanoclusters, graphene) are attractive possible alternatives to traditionally microfabricated silicon in continuing the miniaturization trend in the electronics industry. To go from nanomaterials to electronics, however, the precise one-by-one assembly of billions of nanoelements into a functioning circuit is required-clearly not a simple task. An interdisciplinary team from the University of Washington, in collaboration with the ALS and the Pacific Northwest National Laboratory, has devised a strategy that could make this task a little easier. They have demonstrated the ability to directly "write" nanostructures of Si, Ge, and SiGe with deterministic size, geometry, and placement control. As purity is essential for electronic-grade semiconductors, the resulting patterns were carefully evaluated for carbon contamination using photoemission electron microscopes at ALS Beamlines 7.3.1 and 11.0.1.
3D turtle geometry: artwork, theory, program equivalence and symmetry
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
3-D Model for Deactivation & Decommissioning | Department of Energy
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
NASA to send 3D printer into space
... time that a 3D printer flies in space. The agency has already embraced ground-based 3D printing as a fast, cheap way to make spacecraft parts, including rocket engine components that ... to make spacecraft parts literally on the fly. Space experts say that the promise of 3D�printing is real, but a long way from the hype that surrounds it. �There� ...
Alexandra Witze
Coordination Polymers A Unique 3D Alternating Ferro-and
(3-ptz)] (3-ptz = 5-(3-pyridyl)tetrazolate),[7e] in which the metal centers are diamagnetic 3d10 cadmium
Gao, Song
Identificering af teknologi gennem narrativer; 3D print.
??Denne rapport arbejder med en gennemgang af den s�kaldte 3D printer teknologi. Denne vil s�ttes i sammenh�ng med et teknologifilosofisk �form of life ? forst�else� (more)
Petersen, Mikael
From Digital to Physical: Computational Aspects of 3D Manufacturing.
??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
Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization
Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization presentation at the April 2013 peer review meeting held in Denver, Colorado.
Just Plain Cool, the 3D Printed Shelby Cobra
Indistinguishable from conventional production vehicles on display, the 3D printed Shelby Cobra celebrated its 50th anniversary at the Detroit Auto Show in early January.
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,...
Making 3D Printed Christmas Ornaments | GE Global Research
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...
Homogeneous and Interfacial Catalysis in 3D Controlled Environment...
Homogeneous and Interfacial Catalysis in 3D Controlled Environment FWPProject Description: Project Leader(s): Marek Pruski Principal Investigators: Andreja Bakac, Marek Pruski,...
000191MLTPL01 NON-NRC FUNDED RELAP5-3D VERSION 4.x.x SOFTWARE REACTOR EXCURSION AND LEAK ANALYSIS PACKAGE - THREE DIMENSIONAL� �
Nano, photonic research gets boost from new 3-D visualization...
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 *...
Nanostructured catalyst supports
The present invention relates to SiC nanostructures, including SiC nanopowder, SiC nanowires, and composites of SiC nanopowder and nanowires, which can be used as catalyst supports in membrane electrode assemblies and in fuel cells. The present invention also relates to composite catalyst supports comprising nanopowder and one or more inorganic nanowires for a membrane electrode assembly.
Zhu, Yimin; Goldman, Jay L.; Qian, Baixin; Stefan, Ionel C.
Autonomous Programmable Biomolecular Devices Using Self-Assembled DNA Nanostructures
-Assembled DNA Nanostructures: · use synthetic DNA to self-assemble into DNA nanostructure devices. Goals
Reif, John H.
Graphene�Nanotube�Iron Hierarchical Nanostructure as Lithium Ion Battery Anode
Graphene�Nanotube�Iron Hierarchical Nanostructure as Lithium Ion Battery Anode ... In this study, we report a novel route via microwave irradiation to synthesize a bio-inspired hierarchical graphene�nanotube�iron three-dimensional nanostructure as an anode material in lithium-ion batteries. ...
Si-Hwa Lee; Vadahanambi Sridhar; Jung-Hwan Jung; Kaliyappan Karthikeyan; Yun-Sung Lee; Rahul Mukherjee; Nikhil Koratkar; Il-Kwon Oh
Materials science: Radicals promote magnetic gel assembly
... 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
New solutions in 3D gravity
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
Shape-based retrieval and analysis of 3D models
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
WirePrint: 3D printed previews for fast prototyping
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, Fran�ois Guimbreti�re, Patrick Baudisch
Surface light fields for 3D photography Daniel N. Wood
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
Mastering AutoCAD Civil 3D 2011
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
Automatic 3D modeling of palatal plaster casts Marco Andreetto
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.
Surround structured lighting: 3-D scanning with orthographic illumination
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
Chopper: Partitioning models into 3D-printable parts
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
3D Wavelet-Based Filter and Method
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)
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
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
Efficient spin transfer torque in La{sub 2/3}Sr{sub 1/3}MnO{sub 3} nanostructures
We carry out low temperature magnetotransport measurements on nanostructured La{sub 2/3}Sr{sub 1/3}MnO{sub 3} wires to study the interaction between spin-polarized current and magnetization in this half metallic material. We selectively position domain walls by applying external fields. The domain wall resistance is found to be positive, in contrast to conventional 3d metals. The depinning field is reduced when current pulses are injected into the wire. By comparing measurements for both current polarities, we can disentangle heating and spin transfer torque effects. The determined spin transfer torque efficiency is of the order of 4?�?10{sup ?14} Tm{sup 2}/A, which is significantly higher than in permalloy.
Foerster, Michael [Institut f�r Physik, Johannes Gutenberg-Universit�t, Staudingerweg 7, 55128 Mainz (Germany); ALBA Synchrotron light source, Carrretera BP 1413, km 3.3, 08290 Cerdanyola del Valles, Barcelona (Spain); Pe�a, Luis; Finizio, Simone; Schulz, Tomek; Bisig, Andr� [Institut f�r Physik, Johannes Gutenberg-Universit�t, Staudingerweg 7, 55128 Mainz (Germany); Vaz, C. A. F. [Institut f�r Physik, Johannes Gutenberg-Universit�t, Staudingerweg 7, 55128 Mainz (Germany); SwissFEL, Paul Scherrer Institut, 5232 Villigen PSI (Switzerland); Heinen, Jan [Fachbereich Physik, Universit�t Konstanz, Universit�tsstra�e 10, 78457 Konstanz (Germany); B�ttner, Felix [Institut f�r Physik, Johannes Gutenberg-Universit�t, Staudingerweg 7, 55128 Mainz (Germany); Institut f�r Optik und Atomare Physik, Technische Universit�t Berlin, Stra�e des 17. Juni 135, 10623 Berlin (Germany); Eisebitt, Stefan [Institut f�r Optik und Atomare Physik, Technische Universit�t Berlin, Stra�e des 17. Juni 135, 10623 Berlin (Germany); M�chin, Laurence [GREYC, UMR 6072, CNRS-ENSICAEN-UCBN, 6 Boulevard du Mar�chal Juin, Caen Cedex 14050 (France); and others
3D printing rises to the occasion | ornl.gov
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
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Washington: Graphene Nanostructures for Lithium Batteries Recieves...
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2014: Nanostructured High-Temperature Bulk Thermoelectric Energy Conversion for Efficient Waste Heat Recovery Vehicle Technologies Office Merit Review 2014: Nanostructured...
A parallel algorithm for 3D dislocation dynamics
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: email@example.com; 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)
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
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
A High-Throughput 3-D X-ray Microtomography System with Real-Time 3-D
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.
Electromagnetic energy storage and power dissipation in nanostructures
The processes of storage and dissipation of electromagnetic energy in nanostructures depend on both the material properties and the geometry. In this paper, the distributions of local energy density and power dissipation in nanogratings are investigated using the rigorous coupled-wave analysis. It is demonstrated that the enhancement of absorption is accompanied by the enhancement of energy storage both for material at the resonance of its dielectric function described by the classical Lorentz oscillator and for nanostructures at the resonance induced by its geometric arrangement. The appearance of strong local electric field in nanogratings at the geometry-induced resonance is directly related to the maximum electric energy storage. Analysis of the local energy storage and dissipation can also help gain a better understanding of the global energy storage and dissipation in nanostructures for photovoltaic and heat transfer applications.
Zhao, J M
Using a magnetite/thermoplastic composite in 3D printing of direct replacements for commercially available flow sensors
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
Real time 3D and heterogeneous data fusion
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.
3D Spectroscopy in the Virtual Observatory: Current Status
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
Luminescent systems based on the isolation of conjugated PI systems and edge charge compensation with polar molecules on a charged nanostructured surface
A photoluminescent or electroluminescent system and method of making a non-luminescent nanostructured material into such a luminescent system is presented. The method of preparing the luminescent system, generally, comprises the steps of modifying the surface of a nanostructured material to create isolated regions to act as luminescent centers and to create a charge imbalance on the surface; applying more than one polar molecule to the charged surface of the nanostructured material; and orienting the polar molecules to compensate for the charge imbalance on the surface of the nanostructured material. The compensation of the surface charge imbalance by the polar molecules allows the isolated regions to exhibit luminescence.
Ivanov, Ilia N.; Puretzky, Alexander A.; Zhao, Bin; Geohegan, David B.; Styers-Barnett, David J.; Hu, Hui
Nanostructured materials for solar energy conversion.
??The energy requirements of our planet will continue to grow with increasing world population and the modernization of currently underdeveloped countries. This will force us� (more)
Hoang, Son Thanh
waste-heat recovery allowing for energy reuse. The limited use of thermoelectric generatorswaste-heat recovery allowing for en- ergy reuse. The limited use of thermoelectric generators
life of the battery since the electrode thermal propertiesthe Li-ion battery electrodes. The thermal con- ductivity,in the Li-ion battery electrodes. The thermal conductivity,
Chemistry Controls Material's Nanostructure | The Ames Laboratory
selenium and sulfur precursors. The more strongly bound the selenium or sulfur is to phosphorous in the precursor, the lower the reactivity. The lower the reactivity, the longer...
Intensive Variables & Nanostructuring in Magnetostructural Materials
Over the course of this project, fundamental inquiry was carried out to investigate, understand and predict the effects of intensive variables, including the structural scale, on magnetostructural phase transitions in the model system of equiatomic FeRh. These transitions comprise simultaneous magnetic and structural phase changes that have their origins in very strong orbital-lattice coupling and thus may be driven by a plurality of effects.
Lewis, Laura
Nano-structured Materials as Anodes
2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.
results obtained for the Li-ion battery electrodes suggestnanotubes utilized in the Li-ion battery electrodes. Thenanotubes utilized in the Li-ion battery electrodes. The
Grafta: A 3D environment for biomolecular networks
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
Controlling Tokamak Geometry with 3D Magnetic Perturbations
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
Shallow quantum well excitons: 2D or 3D?
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
Approaches for Additive Manufacturing of 3D Electronic Applications
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
Fluorescence Detector for Capillary Separations Fabricated by 3D Printing
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
Comparison of 2D and 3D gamma analyses
Purpose: As clinics begin to use 3D metrics for intensity-modulated radiation therapy (IMRT) quality assurance, it must be noted that these metrics will often produce results different from those produced by their 2D counterparts. 3D and 2D gamma analyses would be expected to produce different values, in part because of the different search space available. In the present investigation, the authors compared the results of 2D and 3D gamma analysis (where both datasets were generated in the same manner) for clinical treatment plans. Methods: Fifty IMRT plans were selected from the authors� clinical database, and recalculated using Monte Carlo. Treatment planning system-calculated (�evaluated dose distributions�) and Monte Carlo-recalculated (�reference dose distributions�) dose distributions were compared using 2D and 3D gamma analysis. This analysis was performed using a variety of dose-difference (5%, 3%, 2%, and 1%) and distance-to-agreement (5, 3, 2, and 1 mm) acceptance criteria, low-dose thresholds (5%, 10%, and 15% of the prescription dose), and data grid sizes (1.0, 1.5, and 3.0 mm). Each comparison was evaluated to determine the average 2D and 3D gamma, lower 95th percentile gamma value, and percentage of pixels passing gamma. Results: The average gamma, lower 95th percentile gamma value, and percentage of passing pixels for each acceptance criterion demonstrated better agreement for 3D than for 2D analysis for every plan comparison. The average difference in the percentage of passing pixels between the 2D and 3D analyses with no low-dose threshold ranged from 0.9% to 2.1%. Similarly, using a low-dose threshold resulted in a difference between the mean 2D and 3D results, ranging from 0.8% to 1.5%. The authors observed no appreciable differences in gamma with changes in the data density (constant difference: 0.8% for 2D vs 3D). Conclusions: The authors found that 3D gamma analysis resulted in up to 2.9% more pixels passing than 2D analysis. It must be noted that clinical 2D versus 3D datasets may have additional differences�for example, if 2D measurements are made with a different dosimeter than 3D measurements. Factors such as inherent dosimeter differences may be an important additional consideration to the extra dimension of available data that was evaluated in this study.
Pulliam, Kiley B.; Huang, Jessie Y.; Howell, Rebecca M.; Followill, David; Kry, Stephen F., E-mail: firstname.lastname@example.com [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States); Bosca, Ryan [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States)] [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States); O�Daniel, Jennifer [Department of Radiation Oncology, Duke University, Durham, North Carolina 27705 (United States)] [Department of Radiation Oncology, Duke University, Durham, North Carolina 27705 (United States)
Stress-induced Effects Caused by 3D IC TSV Packaging in Advanced Semiconductor Device Performance
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)
X-ray crystallography is currently the primary methodology used to determine the 3D structure of materials and macromolecules. However, many nanostructures, disordered materials, biomaterials, hybrid materials and biological specimens are noncrystalline and, hence, their structures are not accessible by X-ray crystallography. Probing these structures therefore requires the employment of different approaches. A very promising technique currently under rapid development is X-ray diffraction microscopy (or lensless imaging), in which the coherent X-ray diffraction pattern of a noncrystalline specimen is measured and then directly phased to obtain a high-resolution image. Through the DOE support over the past three years, we have applied X-ray diffraction microscopy to quantitative imaging of GaN quantum dot particles, and revealed the internal GaN-Ga2O3 core shell structure in three dimensions. By exploiting the abrupt change in the scattering cross-section near electronic resonances, we carried out the first experimental demonstration of resonant X-ray diffraction microscopy for element specific imaging. We performed nondestructive and quantitative imaging of buried Bi structures inside a Si crystal by directly phasing coherent X-ray diffraction patterns acquired below and above the Bi M5 edge. We have also applied X-ray diffraction microscopy to nondestructive imaging of mineral crystals inside biological composite materials - intramuscular fish bone - at the nanometer scale resolution. We identified mineral crystals in collagen fibrils at different stages of mineralization and proposed a dynamic mechanism to account for the nucleation and growth of mineral crystals in the collagen matrix. In addition, we have also discovered a novel 3D imaging modality, denoted ankylography, which allows for complete 3D structure determination without the necessity of sample titling or scanning. We showed that when the diffraction pattern of a finite object is sampled at a sufficiently fine scale on the Ewald sphere, the 3D structure of the object is determined by the 2D spherical pattern. We confirmed the theoretical analysis by performing 3D numerical reconstructions of a sodium silicate glass structure at 2 �? resolution from a 2D spherical diffraction pattern alone. As X-ray free electron lasers are under rapid development worldwide, ankylography may open up a new horizon to obtain the 3D structure of a non-crystalline specimen from a single pulse and allow time-resolved 3D structure determination of disordered materials.
Jianwei Miao
Subwavelength resonant nanostructured films for sensing
We present a novel subwavelength nanostructure architecture that may be utilized for optical standoff sensing applications. The subwavelength structures are fabricated via a combination of nanoimprint lithography and metal sputtering to create metallic nanostructured films encased within a transparent media. The structures are based on the open ring resonator (ORR) architecture and have their analog in resonant LC circuits, which display a resonance frequency that is inversely proportional to the square root of the product of the inductance and capacitance. Therefore, any perturbation of the nanostructured films due to chemical or environmental effects can alter the inductive or capacitive behavior of the subwavelength features, which can shift the resonant frequency and provide an indication of the external stimulus. This shift in resonance can be interrogated remotely either actively using either laser illumination or passively using hyperspectral or multispectral sensing. These structures may be designed to be either anisotropic or isotropic, which can also provide polarization-sensitive interrogation. Due to the nanometer-scale of the structures, they can be tailored to be optically responsive in the visible or near infrared spectrum with a highly reflective resonant peak that is dependent solely on structural dimensions and material characteristics. We present experimental measurements of the optical response of these structures as a function of wavelength, polarization, and incident angle demonstrating the resonant effect in the near infrared region. Numerical modeling data showing the effect of different fabrication parameters such as structure parameters are also discussed.
Alvine, Kyle J.; Bernacki, Bruce E.; Suter, Jonathan D.; Bennett, Wendy D.; Edwards, Daniel L.; Mendoza, Albert
Predictive evaluation for the preparation of a synthetic Y-shaped DNA nanostructure
With the advent of deoxyribonucleic acid (DNA) nanotechnology, the Y-shaped DNA nanostructure (Y-DNA) as a basic block was first created ... to their characteristic selectivity and specificity, Y-DNA-based materi...
Kyung Soo Park; Seung Won Shin; Jin-Ha Choi�
Design of Nanostructured Solar Cells Using Coupled Optical and Electrical Modeling
Design of Nanostructured Solar Cells Using Coupled Optical and Electrical Modeling Michael G of Applied Physics, California Institute of Technology, Pasadena, California 91125, United States Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
Atwater, Harry
Phase and Shape Evolutions of Ion Beam Synthesized Ge Based Nanostructures
ion beam synthesized Ge nanocrystals," in Department of materials science and engineering:nanoscale engineering. In Chapter 5, ion beam and electronIon Beam Synthesized Ge Based Nanostructures by Swanee Shin Doctor of Philosophy in Engineering �
Shin, Swanee
Wetting and phase-change phenomena on micro/nanostructures for enhanced heat transfer
Micro/nanostructures have been extensively studied to amplify the intrinsic wettability of materials to create superhydrophilic or superhydrophobic surfaces. Such extreme wetting properties can influence the heat transfer ...
Xiao, Rong, Ph. D. Massachusetts Institute of Technology
Software: DIF3D - Nuclear Engineering Division (Argonne)
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).
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.
3D Photonic Crystals for Photon Management in Solar Cells
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
3-D Thermoconvection in an Anisotropic Inclined Sedimentary Layer
......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
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...
3D Modelling of Enhanced Surface Emission by Surface Roughening
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
Investigation of 3-D Heat Transfer Effects in Fenestration Products.
??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
3D Printed Car at the International Manufacturing Technology...
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....
Introducing 3D Venn and Euler Diagrams Peter Rodgers1
University of Kent, UK firstname.lastname@example.com 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
3D Maneuvers For Asymmetric Under-Actuated Rigid Body
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
Quantitative Data Analysis Methods for 3D Microstructure
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
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...
3D EMHD reconnection in a laboratory plasma
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
A fast 3D full-wave solver for nanophotonics
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.
Segmentation of 3D Meshes through Spectral Clustering
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"
3D pose estimation and segmentation using specular cues
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
3D printing: a valuable resource in human anatomy education
In addition to known methods such as plastination and Thiel method embalming, a new three-dimensional printing system (3D printing) has been developed recently�an innovative approach...
Mauro Vaccarezza; Veronica Papa
Effective elastic properties of randomly fractured soils: 3D numerical ...
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�...
3-D Seismic Methods for Shallow Imaging Beneath Pavement
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
3D Tracking at the Nanoscale | The Ames Laboratory
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...
An alternative derivation of the Minimal massive 3D gravity
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
Computational imaging for 3D phase and coherence retrieval |...
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...
Observing Warm Clouds in 3D Using ARM Scanning Cloud
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...
3D Representations for Software Visualization Andrian Marcus
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
Further Analysis of 3D Magnetotelluric Measurements Over the Coso
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
D3-D7 holographic dual of a perturbed 3D CFT
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
Development of an embedded 3D graphics processor
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
Object segmentation and classification using 3-D range camera
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
Reconhecimento de modelos 3D em realidade aumentada m�vel
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
Printing out Particle Detectors with 3D-Printers, a Potentially Transformational Advance for HEP Instrumentation
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
Patient specific 3D printed phantom for IMRT quality assurance
The purpose of this study was to test the feasibility of a patient specific phantom for patient specific dosimetric verification.Using the head and neck region of an anthropomorphic phantom as a substitute for an actual patient, a soft-tissue equivalent model was constructed with the use of a 3D printer. Calculated and measured dose in the anthropomorphic phantom and the 3D printed phantom was compared for a parallel-opposed head and neck field geometry to establish tissue equivalence. A nine-field IMRT plan was constructed and dose verification measurements were performed for the 3D printed phantom as well as traditional standard phantoms.The maximum difference in calculated dose was 1.8% for the parallel-opposed configuration. Passing rates of various dosimetric parameters were compared for the IMRT plan measurements; the 3D printed phantom�results showed greater disagreement at superficial depths than other methods.A custom phantom was created using a 3D printer. It was determined that the use of patient specific phantoms to perform dosimetric verification and estimate the dose in the patient is feasible. In addition, end-to-end testing on a per-patient basis was possible with the 3D printed phantom. Further refinement of the phantom construction process is needed for routine use.
Eric D Ehler; Brett M Barney; Patrick D Higgins; Kathryn E Dusenbery
A 3D radiative transfer framework: II. line transfer problems
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
Toward single cell traction microscopy within 3D collagen matrices
Mechanical interaction between the cell and its extracellular matrix (ECM) regulates cellular behaviors, including proliferation, differentiation, adhesion, and migration. Cells require the three-dimensional (3D) architectural support of the ECM to perform physiologically realistic functions. However, current understanding of cell�ECM and cell�cell mechanical interactions is largely derived from 2D cell traction force microscopy, in which cells are cultured on a flat substrate. 3D cell traction microscopy is emerging for mapping traction fields of single animal cells embedded in either synthetic or natively derived fibrous gels. We discuss here the development of 3D cell traction microscopy, its current limitations, and perspectives on the future of this technology. Emphasis is placed on strategies for applying 3D cell traction microscopy to individual tumor cell migration within collagen gels. - Highlights: � Review of the current state of the art in 3D cell traction force microscopy. � Bulk and micro-characterization of remodelable fibrous collagen gels. � Strategies for performing 3D cell traction microscopy within collagen gels.
Hall, Matthew S. [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Long, Rong [Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G8 (Canada); Feng, Xinzeng [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Huang, YuLing [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Hui, Chung-Yuen [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Wu, Mingming, E-mail: email@example.com [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States)
Development of Nanostructures in Thermoelectric Pb-Te-Sb Alloys , L. A. Collins2
in the figure of merit of thermoelectric materials. Fabrication of nanostructured thermoelectric materials via the discovery of materials with a high thermoelectric figure of merit, zT, defined as S2 T/, where immiscible thermoelectric materials: PbTe-Sb2Te3. This ternary system was selected for investigation because
DYNA3D: A nonlinear, explicit, three-dimensional finite element code for solid and structural mechanics, User manual. Revision 1
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.
DNA-inspired materials for 'bottom-up' nanotechnology.
??DNA is a remarkable material that is both an inspiration for polymer nanotechnology and a versatile building block for assembling well-defined nanostructures. To create polymeric� (more)
Ishihara, Yoshihiro.
Center for Nanophase Materials Sciences (CNMS) - Call For Proposals
materials Deuterated vinyl and diene monomers and polymers Soft matter TEM OPTOELECTRONIC NANOSTRUCTURES Laser and CVD synthesis of carbon nanomaterials, oxide film...
Engineering the optical properties of subwavelength devices and materials
Many applications demand materials with seemingly incompatible optical characteristics. For example, immersion photolithography is a resolution enhancing technique used to fabricate the ever-shrinking nanostructures in ...
Anant, Vikas, 1980-
Center for Materials at Irradiation and Mechanical Extremes:...
effects in metallic materials Transmission electron microscopy Sample Publications "Mechanical Behavior of Metallic Nanolaminates," A. Misra, chapter in Nanostructure Control of...
3D Image Viz-Analysis Tools and V3D Development Hackathon, July 26 -August 8, 2010
- 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
NEBU_3D: A fast pseudo-3D photoionization code for aspherical planetary nebulae and HII regions
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
The Shockley-Queisser limit for nanostructured solar cells
The Shockley-Queisser limit describes the maximum solar energy conversion efficiency achievable for a particular material and is the standard by which new photovoltaic technologies are compared. This limit is based on the principle of detailed balance, which equates the photon flux into a device to the particle flux (photons or electrons) out of that device. Nanostructured solar cells represent a new class of photovoltaic devices, and questions have been raised about whether or not they can exceed the Shockley-Queisser limit. Here we show that single-junction nanostructured solar cells have a theoretical maximum efficiency of 42% under AM 1.5 solar illumination. While this exceeds the efficiency of a non- concentrating planar device, it does not exceed the Shockley-Queisser limit for a planar device with optical concentration. We conclude that nanostructured solar cells offer an important route towards higher efficiency photovoltaic devices through a built-in optical concentration.
Xu, Yunlu; Munday, Jeremy N
2D?3D polycatenated and 3D?3D interpenetrated metal�organic frameworks constructed from thiophene-2,5-dicarboxylate and rigid bis(imidazole) ligands
Hydrothermal reactions of rigid 1,4-bis(imidazol-1-yl)benzene (dib) and 1,4-bis(imidazol-1-yl)-2,5-dimethylbenzene (dimb) with deprotonated thiophene-2,5-dicarboxylic acid (H{sub 2}tdc) in the presence of Zn(II) and Cd(II) salts in H{sub 2}O produced three new metal�organic frameworks, namely, [Zn(�-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 metal�organic frameworks. Isomorphous complexes 1 and 2 reveal polycatenated 2D+2D?3D framework based on an undulated (4,4)-sql layer. Complex 3 exhibits a new 4-fold interpenetrating 3D framework with the point symbol of 6{sup 6}. Molecular simulations were used to assess the potentials of the complexes for H{sub 2} storage application. These coordination polymers exhibit blue fluorescent emission bands in the solid state at room temperature. Display Omitted - Highlights: � Complexes 1 and 2 display polycatenated 2D+2D?3D framework. � Complex 3 exhibits a new 4-fold interpenetrating 3D framework. � Complex 1 adsorbs the highest amount of H{sub 2} at 100 bar and 298 K. � Complexes display blue fluorescent emission bands.
Erer, Hakan [Department of Chemistry, Faculty of Arts and Sciences, Eski?ehir Osmangazi University, 26480 Eski?ehir (Turkey); Ye?ilel, Okan Zafer, E-mail: firstname.lastname@example.com [Department of Chemistry, Faculty of Arts and Sciences, Eski?ehir Osmangazi University, 26480 Eski?ehir (Turkey); Ar?c?, M�rsel [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); B�y�kg�ng�r, Orhan [Department of Physics, Faculty of Arts and Sciences, Ondokuz May?s University, 55139 Samsun (Turkey)
Enhanced 2D/3D Approaches Based on Relevance Index for 3D-Shape Retrieval Mohamed Chaouch, Anne Verroust-Blondet
Enhanced 2D/3D Approaches Based on Relevance Index for 3D-Shape Retrieval Mohamed Chaouch, Anne.Chaouch,email@example.com 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
SunFloor 3D: A Tool for Networks on Chip Topology Synthesis for 3D Systems on Ciprian Seiculescu , Srinivasan Murali
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
Propagation in 3D of microwaves through density perturbations
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
Advanced 3D Sensing and Visualization System for Unattended Monitoring
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.
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
3 July 2003 HIRES3D -ITC Research Seminar -Robert Hack 1 HIGH RESOLUTION REMOTE SENSING
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
A novel framework for exploring 3-D FPGAs with heterogeneous interconnect fabric
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
Beyond 3-D X-ray Imaging: Methodology Development and Applications in
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
6 - Photopolymerization-based additive manufacturing for the development of 3D porous scaffolds
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 AMT�s 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 AMT�s for the fabrication of scaffolds are reviewed.
B. Hus�r; M. Hatzenbichler; V. Mironov; R. Liska; J. Stampfl; A. Ovsianikov
Utilizing in-situ Resources and 3D printing Structures for a manned Mars mission
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
Compositional ordering and stability in nanostructured, bulk thermoelectric alloys.
Thermoelectric materials have many applications in the conversion of thermal energy to electrical power and in solid-state cooling. One route to improving thermoelectric energy conversion efficiency in bulk material is to embed nanoscale inclusions. This report summarize key results from a recently completed LDRD project exploring the science underpinning the formation and stability of nanostructures in bulk thermoelectric and the quantitative relationships between such structures and thermoelectric properties.
Hekmaty, Michelle A.; Faleev, S.; Medlin, Douglas L.; Leonard, F.; Lensch-Falk, J.; Sharma, Peter Anand; Sugar, J. D.
A heightened radiosensitivity of stromal fibroblasts in 3D matrix
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
Virtual Frog Dissection: Interactive 3D Graphics Via the Web
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
3D Visualization of Water Transport in Ferns
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?
A 3-D Link between Antibiotic Resistance and Brain Disease
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
3D gravity and non-linear cosmology
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
Building Energy Software Tools Directory: Look3D
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
ARM - Publications: Science Team Meeting Documents: Application of 3D
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,
3D Magnetotelluric characterization of the COSO GeothermalField
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.
RELAP5-3D Code Validation for RBMK Phenomena
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
RELAP5-3D code validation for RBMK phenomena
Fisher, J.E.
3D Flat Holography: Entropy and Logarithmic Corrections
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
Polarization Singularities in 2D and 3D Speckle Fields
The 3D structure of randomly polarized light fields is exemplified by its polarization singularities: lines along which the polarization is purely circular (C lines) and surfaces on which the polarization is linear (L surfaces). We visualize these polarization singularities experimentally in vector laser speckle fields, and in numerical simulations of random wave superpositions. Our results confirm previous analytical predictions [M.?R. Dennis, Opt. Commun. 213, 201 (2002)] regarding the statistical distribution of types of C points and relate their 2D properties to their 3D structure.
Florian Flossmann; Kevin O�Holleran; Mark R. Dennis; Miles J. Padgett
Modelling Gaia CCD pixels with Silvaco 3D engineering software
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
Evolving spherical boson stars on a 3D cartesian grid
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
STELLOPT Modeling of the 3D Diagnostic Response in ITER
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
CuO nanostructures: Synthesis, characterization, growth mechanisms, fundamental properties, and applications
Abstract Nanoscale metal oxide materials have been attracting much attention because of their unique size- and dimensionality-dependent physical and chemical properties as well as promising applications as key components in micro/nanoscale devices. Cupric oxide (CuO) nanostructures are of particular interest because of their interesting properties and promising applications in batteries, supercapacitors, solar cells, gas sensors, bio sensors, nanofluid, catalysis, photodetectors, energetic materials, field emissions, superhydrophobic surfaces, and removal of arsenic and organic pollutants from waste water. This article presents a comprehensive review of recent synthetic methods along with associated synthesis mechanisms, characterization, fundamental properties, and promising applications of CuO nanostructures. The review begins with a description of the most common synthetic strategies, characterization, and associated synthesis mechanisms of CuO nanostructures. Then, it introduces the fundamental properties of CuO nanostructures, and the potential of these nanostructures as building blocks for future micro/nanoscale devices is discussed. Recent developments in the applications of various CuO nanostructures are also reviewed. Finally, several perspectives in terms of future research on CuO nanostructures are highlighted.
Qiaobao Zhang; Kaili Zhang; Daguo Xu; Guangcheng Yang; Hui Huang; Fude Nie; Chenmin Liu; Shihe Yang
3-D Atomic-Scale Mapping of Manganese Dopants in Lead Sulfide Nanowires
Dopants in nanowires, whether intentional or unintentional, can ultimately control the material's properties and therefore need to be understood on the atomic scale. We study vapor-liquid-solid grown manganese-doped lead sulfide nanowires by atom-probe tomography for the first time for lead salt materials. The three-dimensional chemical concentration maps at the atomic scale demonstrate a radial distribution profile of Mn ions, with a concentration of only 0.18 at.% and 0.01 at.% for MnCl2 and Mn-acetate precursors, respectively. The ability to characterize these small concentrations of dopant atoms in Pb1-xMnxS nanowires (x = 0.0036 and 0.0002), important for spintronic and thermoelectric devices, sets a platform for similar analyses for all nanostructures. First-principles calculations confirm that Mn atoms substitute for Pb in the PbS structure.
Isheim, Dieter; Kaszpurenko, Jason; Yu, Dong; Mao, Zugang; Seidman, David N.; Arslan, Ilke
School of Art & Design 3D Printing of Relief Forms onto Ceramic Tiles
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
3D Single Particle Tracking Spectroscopy and Nanoparticles for Interrogating Complex Systems
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
3D Human Motion Tracking with a Coordinated Mixture of�Factor Analyzers
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
A 3D Model for Ion Beam Formation and Transport Simulation
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.
3D global and regional patterns of human fetal subplate growth determined in utero
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
3D culture models of normal and malignant breast epithelial cells
3D culture models of normal and malignant breast epithelialcells; Lee et al. 3D culture models of normal and malignantFor correspondence: firstname.lastname@example.com 3D culture models of
Lee, Genee Y.; Kenny, Paraic A.; Lee, Eva H.; Bissell, Mina J.
A 3D Ultrasound Study of Sinus Tract Formation in Hidradenitis Suppurativa
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
2D and 3D Acoustic Source Localization Using the AML Algorithm and ENSBox Nodes
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 �
The quaternion Bingham Distribution, 3D object detection, and dynamic manipulation
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
Characterization of iron(III) oxide/hydroxide nanostructured materials produced by sol�gel technology based on the Fe(NO3)3�9H2O�C2H5OH�CH3CHCH2O system
Nanostructured iron oxide/hydroxide materials were synthesized by sol�gel technology, starting from the ternary system Fe(NO3)3�9H2O/ethanol/propylene oxide. Evaporative drying and supercritical fluids extraction were used as drying techniques to produce xerogels and aerogels, respectively. The materials were physically, structurally and chemically characterized, to analyze their suitability for surface-dependent applications and the influence of the drying technique on their properties. In addition, the chemistry involved in the sol�gel synthesis of iron oxides/hydroxides with the referred ternary system is reviewed. The produced materials were composed by aggregates of nanometric crystallites: ?1�nm for xerogels and ?5�nm for aerogels. Their high porosity and surface area (xerogels � 50% and 150�m2�g?1; aerogels � 90% and 400�m2�g?1) make them suitable for surface-dependent processes, being the aerogels far more adequate. The FTIR, XRD and M�ssbauer spectroscopy results gave some insight on the composition of these materials, showing that the 2-line ferrihydrite is their most probable constituent phase. Finally, it was concluded that the continuous supercritical fluids extraction is the best drying procedure for these materials, since it preserves the mesoporous structure of the gels. When evaporative drying is used, the pores shrinkage leads to a predominantly microporous structure.
Luisa Dur�es; Ana Moutinho; In�s J. Seabra; Benilde F.O. Costa; Herm�nio C. de Sousa; Ant�nio Portugal
Role of Nanostructures in Reducing Thermal Conductivity below Alloy Limit in Crystalline Solids
reduce electrical conductivity, making it ineffective for increasing the material's thermoelectric figure conversion devices depends on the thermoelectric figure of merit (ZT) of a material, which is defined as ZT thermoelectric materials [3-5]. While the original goal for nanostructuring was to increase S2 due to quantum
Thermoelectric properties of high quality nanostructured Ge:Mn thin D. Tanoff2*
. The thermoelectric performance ZT of such material is as high as 0.15 making them a promising thermoelectric p the thermal properties by inducing phonon diffusion. The efficiency of thermoelectric materials is given properties of a nanostructured thermoelectric material are never those of the related bulk ones. Different
Wire Congestion And Thermal Aware 3D Global Placement
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
A 3D numerical model for Kepler's supernova remnant
......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. Vel�zquez; E. M. Reynoso
3D model-based tracking for UAV indoor localisation
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
TCAUP FabLab 3D PRINTING ORDER FORM
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.
Extra Dimensions: 3D and Time in PDF Documentation
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
Large area 3D helical photonic crystals A. K. Rauba)
.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
Oct 8, 2004 Segmentation of 3D Meshes
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
Photo tourism: exploring photo collections in 3D
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
Coming to grips: 3D printing for accessibility
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
3D object recognition, localization and treatment of rumex
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
8, 42674308, 2008 3-D retrieval of cloud
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
A data-mapping approach to 3-D wavefield redatuming
......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
Considerations for Targets in 3D Pointing Experiments
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
Shape Reconstruction of 3D Bilaterally Symmetric Surfaces
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
Liver vasculature refinement with multiple 3D structuring element shapes
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
Electromagnetic Waves Propagation in 3D Plasma Configurations
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
3D Tomography from Few Projections in Experimental Fluid Dynamics
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
Propagation Beam Consideration for 3D THz Computed Tomography
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
RELAP5-3D Developer Guidelines and Programming Practices
Our ultimate goal is to create and maintain RELAP5-3D as the best software tool available to analyze nuclear power plants. This begins with writing excellent programming and requires thorough testing. This document covers development of RELAP5-3D software, the behavior of the RELAP5-3D program that must be maintained, and code testing. RELAP5-3D must perform in a manner consistent with previous code versions with backward compatibility for the sake of the users. Thus file operations, code termination, input and output must remain consistent in form and content while adding appropriate new files, input and output as new features are developed. As computer hardware, operating systems, and other software change, RELAP5-3D must adapt and maintain performance. The code must be thoroughly tested to ensure that it continues to perform robustly on the supported platforms. The coding must be written in a consistent manner that makes the program easy to read to reduce the time and cost of development, maintenance and error resolution. The programming guidelines presented her are intended to institutionalize a consistent way of writing FORTRAN code for the RELAP5-3D computer program that will minimize errors and rework. A common format and organization of program units creates a unifying look and feel to the code. This in turn increases readability and reduces time required for maintenance, development and debugging. It also aids new programmers in reading and understanding the program. Therefore, when undertaking development of the RELAP5-3D computer program, the programmer must write computer code that follows these guidelines. This set of programming guidelines creates a framework of good programming practices, such as initialization, structured programming, and vector-friendly coding. It sets out formatting rules for lines of code, such as indentation, capitalization, spacing, etc. It creates limits on program units, such as subprograms, functions, and modules. It establishes documentation guidance on internal comments. The guidelines apply to both existing and new subprograms. They are written for both FORTRAN 77 and FORTRAN 95. The guidelines are not so rigorous as to inhibit a programmer�s unique style, but do restrict the variations in acceptable coding to create sufficient commonality that new readers will find the coding in each new subroutine familiar. It is recognized that this is a �living� document and must be updated as languages, compilers, and computer hardware and software evolve.
Dr. George L Mesina
Manual 3D Lattice-Boltzmann Parallel code Author: Mike Sukop, Danny Thorne and Haibo Huang
Manual 3D Lattice-Boltzmann Parallel code Author: Mike Sukop, Danny Thorne and Haibo Huang Manual 3D Lattice-Boltzmann Parallel code
Sukop, Mike
3D Printing for Rapid Manufacturing: Study of Dimensional and Geometrical Accuracy
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
Supplemental Document: Interface Techniques for 3D Control of Spatial Keyframing
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
An Algorithm for Computing Customized 3D Printed Implants with Curvature Constrained Channels for Enhancing
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
Impact of 3D printing on global supply chains by 2020 .
??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
E-Print Network 3.0 - absorbed dose 3d Sample Search Results
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...
Explanatory Lifelike Avatars: Performing User-Centered Tasks in 3D Learning Environments
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
XEDS STEM Tomography For 3D Chemical CharacterizationOf Nanoscale...
XEDS STEM Tomography For 3D Chemical CharacterizationOf Nanoscale Particles. XEDS STEM Tomography For 3D Chemical CharacterizationOf Nanoscale Particles. Abstract: We present a...
Carbon aerogel with 3-D continuous skeleton and mesopore structure for lithium-ion batteries application
Abstract Carbon aerogel (CA) with 3-D continuous skeleton and mesopore structure was prepared via a microemulsion-templated sol�gel 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 470�mA�h�g?1 for 80 cycles, much higher than the theoretical capacity of commercial graphite (372�mAh�g?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 620�m2�g?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
JOURNAL OF MATERIALS SCIENCE 39 (2004) 1085 1086 UV transmitters of aluminum polyphosphates prepared by high
nanostructured ceramic or composite materials with the desired properties [610]. Aluminum polyphosphate nanostructured systems have been used extensively as pigment for painting [11, 12], as matrix for composite University of Goi´as (UFG), 74001-970 Goi^ania, GO, Brazil The possibility to obtain nanostructured ceramic
Gallas, Márcia Russman
Materials - Micro heat exchangers ... | ornl.gov
Materials - Micro heat exchangers ... Heat exchanger components fabricated with 3-D printing and analyzed with neutron imaging create a world of opportunities for electronic...
The M3D-C1 Approach to Simulating 3D 2-fluid Magnetohydrodynamics in Magnetic Fusion Experiments
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
3D Corporate Tourism in the Marine Sciences: Application-Oriented Problem Solving in Marine and Coastal Ecosystems
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
Key Physical Mechanisms in Nanostructured Solar Cells
The objective of the project was to study both theoretically and experimentally the excitation, recombination and transport properties required for nanostructured solar cells to deliver energy conversion efficiencies well in excess of conventional limits. These objectives were met by concentrating on three key areas, namely, investigation of physical mechanisms present in nanostructured solar cells, characterization of loss mechanisms in nanostructured solar cells and determining the properties required of nanostructured solar cells in order to achieve high efficiency and the design implications.
Dr Stephan Bremner
2D and 3D percolation in high-temperature superconductors
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
Migration and Accretion of Protoplanets in 2D and 3D Global Hydrodynamical Simulations
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
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.
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
Development and characterization of 3D, nano-confined multicellular constructs for advanced biohybrid devices.
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
3-D view of 1-D nanostructures January 6th, 2012 Filed under Nano Science Tagged cormick-school, engineering,
cormick-school, engineering, esearchers-at-the, gallium-nitride, great-promise, have-found, mccormick
Espinosa, Horacio D.
Automated 3D trabecular bone structure analysis of the proximal femur�prediction of biomechanical strength by CT and DXA
z ORIGINAL ARTICLE Automated 3D trabecular bone structureIntroduction An automated 3D segmentation algorithm wasstudy was to use an automated 3D segmentation algorithm to
3D Mt Resistivity Imaging For Geothermal Resource Assessment And
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
3D MAGNETOTELLURIC CHARACTERIZATION OF THE COSO GEOTHERMAL FIELD | Open
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
Bootstrapping Mixed Correlators in the 3D Ising Model
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
2D-3D transition of gold cluster anions resolved
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
D3-D7 inflationary model and M theory
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
Widespread 3D seismic survey covers mature field in Gabon
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))
AES Encryption and Decryption Using Direct3D 10 API
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
Multicomponent 3-D characterization of a coalbed methane reservoir
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.
Beam Optics Analysis - An Advanced 3D Trajectory Code
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)
Electric field in 3D gravity with torsion
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?
3D acoustic imaging applied to the Baikal Neutrino Telescope
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
Single molecule microscopy in 3D cell cultures and tissues
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
On Enhancing Power Benefits in 3D ICs: Block Folding and Bonding Styles Perspective
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
Metrological analysis of a procedure for the automatic 3D modeling of dental plaster casts
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
From Low-Cost Depth Sensors to CAD: Cross-Domain 3D Shape Retrieval via
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 email@example.com Abstract. The recent advances of low-cost and mobile depth sensors dramatically extend the potential of 3D
Chang, Shih-Fu
3D MODEL RETRIEVAL BASED ON DEPTH LINE DESCRIPTOR Mohamed Chaouch and Anne Verroust-Blondet
3D MODEL RETRIEVAL BASED ON DEPTH LINE DESCRIPTOR Mohamed Chaouch and Anne Verroust-Blondet email@example.com. 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
3D Graph Visualization with the Oculus Rift Virtual Graph Reality
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
Learning 3D Object Templates by Hierarchical Quantization of Geometry and Appearance Spaces
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