检索结果-内蒙古大学图书馆

Conference on Lasers and Electro-Optics, CLEO 2006

作者： McDonald, Joel P. Ray, Katherine E. Mistry, Vanita R. Mourou, Gérard Yalisove, Steven M. Center for Ultrafast Optical Science Department of Electrical Engineering University of Michigan Ann Arbor MI 48109-2099 United States Applied Physics Program 2477 Randall Laboratory University of Michigan Ann Arbor MI 48109-1120 United States College of Engineering University of Michigan Ann Arbor MI 48109 United States Department of Materials Science and Engineering 2200 Hayward Street Ann Arbor MI 48109-2136 United States

Femtosecond laser ablation of Silicon (100) with thermal oxide thin films was studied in order to further understand the ablative properties of thin films and to evaluate their influence on the ablation of the substra... 详细信息

ISBN: (纸本)1557528136

关键词： Laser ablation

来源：评论

学校读者我要写书评

暂无评论

Integrated semiconductor optical sensors for chronic, minimally-invasive imaging of brain function

Integrated semiconductor optical sensors for chronic, minima...

引用

28th Annual International Conference of the IEEE engineering in Medicine and Biology Society, EMBS'06

作者： Lee, Thomas T. Levi, Ofer Jianhua, Cang Kaneko, Megumi Stryker, Michael P. Smith, Stephen J. Shenoy, Krishna V. Harris Jr., James S. IEEE Department of Electrical Engineering Stanford University Stanford CA 94303 United States Departments of Electrical Engineering and Applied Physics Stanford University Stanford CA 94305 United States Department of Physiology University of California San Francisco 94143 United States Department of Molecular and Cellular Physiology Neurosciences Program Stanford University Stanford CA 94305 United States Department of Electrical Engineering Neurosciences Program Stanford University Stanford CA 94305 United States Departments of Electrical Engineering Applied Physics and Materials Science and Engineering Stanford University Stanford CA 94305 United States

ISBN: (纸本)1424400325

Intrinsic Optical Signal (IOS) imaging is a widely accepted technique for imaging brain activity. We propose an integrated device consisting of interleaved arrays of gallium arsenide (GaAs) based semiconductor light sources and detectors operating at telecommunications wavelengths in the near-infrared. Such a device will allow for long-term, minimally invasive monitoring of neural activity in freely behaving subjects, and will enable the use of structured illumination patterns to improve system performance. In this work we describe the proposed system and show that near-infrared IOS imaging at wavelengths compatible with semiconductor devices can produce physiologically significant images in mice, even through skull. © 2006 IEEE.

关键词： Optical sensors

来源：评论

学校读者我要写书评

暂无评论

Polydiniethylsiloxane-based self-healing materials

引用

Advanced materials 2006年第8期18卷 997-1000页

作者： Cho, Soo Hyoun Andersson, H. Magnus White, Scott R. Sottos, Nancy R. Braun, Paul V. Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana IL 61801 United States Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana IL 61801 United States Department of Aerospace Engineering University of Illinois at Urbana-Champaign Urbana IL 61801 United States Department of Theoretical and Applied Mechanics University of Illinois at Urbana-Champaign Urbana IL 61801 United States

A new chemically stable stable self-healing materials system based on the tin-catalyzed polycondensation of phase-separated droplets of polydimethylsiloxane (HOPDMS) and polydiethoxysiloxane (PDES), was investigated. Some of the advantages of the system include the healing chemistry remains stable in humid or wet environments, the chemistry is stable to an elevated temperature that enables healing in high-temperature thermoset systems, and the widely available and low-cost components. The siloxane-based healing agent mixture in the new system is phase-separated in the matrix while the catalyst is encapsulated. The low solubility of siloxane-based polymers enables the HOPDMS-PDES mixture and catalyst containing microcapsules to be directly blended with the vinyl ester prepolymer, forming a distribution of phase-separated droplets and catalyst. The healing efficiency was calculated as the ratio of the critical fractured loads for the healed and virgin samples.

关键词： materials science

来源：评论

学校读者我要写书评

暂无评论

Integrated Semiconductor Optical Sensors for Chronic, Minimally-Invasive Imaging of Brain Function

Integrated Semiconductor Optical Sensors for Chronic, Minima...

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Thomas T. Lee Ofer Levi Jianhua Cang Megumi Kaneko Michael P. Stryker Stephen J Smith Krishna V. Shenoy James S. Harris Department of Electrical Engineering University of Stanford Stanford CA USA Departments of Electrical Engineering and Applied Physics University of Stanford Stanford CA USA Department of Physiology University of California San Francisco USA Department of Molecular and Cellular Physiology and the Neurosciences Program University of Stanford Stanford CA USA Department of Electrical Engineering and the NeurosciencesProgram University of Stanford Stanford CA USA Departments of Electrical Engineering Applied Physics and Materials Science and Engineering University of Stanford Stanford CA USA

Intrinsic optical signal (IOS) imaging is a widely accepted technique for imaging brain activity. We propose an integrated device consisting of interleaved arrays of gallium arsenide (GaAs) based semiconductor light sources and detectors operating at telecommunications wavelengths in the near-infrared. Such a device will allow for long-term, minimally invasive monitoring of neural activity in freely behaving subjects, and will enable the use of structured illumination patterns to improve system performance. In this work we describe the proposed system and show that near-infrared IOS imaging at wavelengths compatible with semiconductor devices can produce physiologically significant images in mice, even through skull

关键词： Optical sensors Optical imaging Gallium arsenide Brain Optical arrays Sensor arrays Light sources Minimally invasive surgery Monitoring Lighting

来源：评论

学校读者我要写书评

暂无评论

Solvent mediated assembly of nanoparticles confined in mesoporous alumina

引用

Physical Review B 2006年第12期73卷 125412-125412页

作者： Kyle J. Alvine Diego Pontoni Oleg G. Shpyrko Peter S. Pershan David J. Cookson Kyusoon Shin Thomas P. Russell Markus Brunnbauer Francesco Stellacci Oleg Gang Division of Engineering and Applied Sciences Harvard University Cambridge Massachusetts 02138 USA Center for Nanoscale Materials Argonne National Laboratory Argonne Illinois 60439 USA Department of Physics Harvard University Cambridge Massachusetts 02138 USA Australian Synchrotron Research Program Building 434 Argonne National Laboratory Argonne Illinois 60439 USA Department of Polymer Science and Engineering University of Massachusetts Amherst Massachusetts 01003 USA Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA Center for Functional Nanomaterials Brookhaven National Lab Upton New York 11973 USA

The controlled self-assembly of thiol stabilized gold nanocrystals in a mediating solvent and confined within mesoporous alumina was probed in situ with small angle x-ray scattering. The evolution of the self-assembly process was controlled reversibly via regulated changes in the amount of solvent condensed from an undersaturated vapor. Analysis indicated that the nanoparticles self-assembled into cylindrical monolayers within the porous template. Nanoparticle nearest-neighbor separation within the monolayer increased and the ordering decreased with the controlled addition of solvent. The process was reversible with the removal of solvent. Isotropic clusters of nanoparticles were also observed to form temporarily during desorption of the liquid solvent and disappeared upon complete removal of liquid. Measurements of the absorption and desorption of the solvent showed strong hysteresis upon thermal cycling. In addition, the capillary filling transition for the solvent in the nanoparticle-doped pores was shifted to larger chemical potential, relative to the liquid/vapor coexistence, by a factor of 4 as compared to the expected value for the same system without nanoparticles.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Collective coordinate control of density distributions

引用

Physical Review E 2006年第3期74卷 031104-031104页

作者： Obioma U. Uche Salvatore Torquato Frank H. Stillinger Department of Chemical Engineering Princeton University Princeton New Jersey 08544 USA Department of Chemistry Princeton University Princeton New Jersey 08544 USA Princeton Institute for the Science and Technology of Materials Princeton University Princeton New Jersey 08544 USA Program in Applied & Computational Mathematics Princeton University Princeton New Jersey 08544 USA Princeton Center for Theoretical Physics Princeton University Princeton New Jersey 08544 USA

Real collective density variables C(k) [cf. Eq. (1.3)] in many-particle systems arise from nonlinear transformations of particle positions, and determine the structure factor S(k), where k denotes the wave vector. Our objective is to prescribe C(k) and then to find many-particle configurations that correspond to such a target C(k) using a numerical optimization technique. Numerical results reported here extend earlier one- and two-dimensional studies to include three dimensions. In addition, they demonstrate the capacity to control S(k) in the neighborhood of ∣k∣=0. The optimization method employed generates multiparticle configurations for which S(k)∝∣k∣α, ∣k∣⩽K, and α=1, 2, 4, 6, 8, and 10. The case α=1 is relevant for the Harrison-Zeldovich model of the early universe, for superfluid He4, and for jammed amorphous sphere packings. The analysis also provides specific examples of interaction potentials whose classical ground states are configurationally degenerate and disordered.

关键词： STATISTICAL mechanics REALIZABILITY SYSTEM

来源：评论

学校读者我要写书评

暂无评论

Magnetic fibre and paper for information storage

引用

Paper Asia 2006年第3期22卷 31-33页

作者： Ong, B.H. Zakaria, S. Ahmad, S. Abdullah, M. Yusoff, M.N.M. Liang, M.S. Van De Ven, T.G.M. Faculty of Engineering Multimedia University Jalan Multimedia Selangor Darul Ehsan Malaysia Materials Science Program School of Applied Physics Universiti Kebangsaan Malaysia 43600 Bangi Selangor Malaysia Physics Program School of Applied Physics Universiti Kebangsaan Malaysia 43600 Bangi Selangor Malaysia Wood Chemistry Division Forest Research Institute Malaysia Kepong 52109 Kuala Lumpur Malaysia Department of Mechanical Engineering College of Engineering Universiti Tenaga Nasional Km 7 Jalan Kajang - Puchong 43009 Kajang Selangor Malaysia Department of Chemistry Pulp and Paper Research Centre McGill University Montreal H3A 2A7 Canada

Magnetic paper via lumen loading process was prepared from neverdried and dried kraft pulp. Polyethylenimine (PEI) was used as retention aid during the inter-stage treatment. The paper produced from the magnetic pulp showed an increase of magnetic properties as the loading increased. The physical properties of the paper such as tensile index, burst index, tear and folding endurance showed a reduction in the strength value as the loading capacity increased. The lumen-loaded paper shows better physical properties than conventionally loaded paper. The flocculation study shows that the magnetic colloid exists in multi particles aggregates form in water solution, which caused by magnetodipole interaction.

关键词： Papermaking

来源：评论

学校读者我要写书评

暂无评论

Abstracts from the 6th International Conference on the engineering of Sport, 10-14 July 2006, Olympic Hall, Munich, Germany Abstracts

引用

SPORTS engineering 2006年第3期9卷 175-190页

作者： [Anonymous] University of Exeter UK Cranfield University UK University of Ulster UK R&A Rules Limited UK Instituto de Biomecánica de Valencia (IBV) Spain Movement Sciences Group Department of Health Sciences Universiteit Maastricht Netherlands Terra Sports Technology Canada Otto-von-Guericke-University Magdeburg Germany Sports Technology Research Group Loughborough University UK University of Stuttgart Germany Loughborough University UK Sports Engineering CSES Sheffield Hallam University UK Department of Anatomy Bristol University Bristol UK Department of Mechanical Engineering Bristol University Bristol UK Engineering Mechanics United States Air Force Academy Colorado Springs USA Wright Patterson Air Force Base Ohio USA Department Product Development TU Munich Germany Department of Sport Science Otto-von-Guericke University Magdeburg Germany Department of Sport Science University of Vienna Austria Department of Mechanical Engineering Bristol University UK University of Cambridge UK University of Glamorgan UK TUM Sport Equipment & Materials Germany Sports Engineering Research Group University of Sheffield UK Audi Sport USA Royal Melbourne Institute of Technology Australia University of Bath UK University of Wales Institute Cardiff UK Graduate School of Information Science & Engineering Tokyo Institute of Technology Japan Cranfield Centre for Sports Surfaces Cranfield University UK Institute of Mechatronics Chemnitz Germany Institute for Applied Training Science Leipzig Germany Swedish Defence Research Agency Sweden Department of Sport Science University of Innsbruck Austria Department of Engineering Mathematics Geometry & Computer Science University of Innsbruck Austria Department of Mechanics & Mechatronics Vienna University of Technology Austria HTM Tyrolia Schwechat Austria College of Engineering Chubu University Japan Graduate Student of Engineering Chubu University Japan Department of Mechanical Engineering Chubu University Japan The University of We

The primary aim of this study was to assess the feasibility of using a soil laboratory designed for testing of industrial equipment, for the biomechanical assessment of sports movements and footwear. This was achieved by the investigation of the influence of three different footwear types on in-shoe pressures to assess cushioning provided by the footwear for two surface conditions of differing density. Six subjects each performed running trials on the two surfaces in three pairs of footwear: molded boots, boots with studs and trainers. Inshoe pressure data were collected for six running steps for each shoe-surface condition, with peak heel force values used to quantify cushioning. Within each surface condition, similar peak heel force values were obtained for each of the footwear conditions. The comparison of surfaces revealed significantly higher heel impact forces when running on the higher density surface, suggesting a lower cushioning effect of this surface condition. This study demonstrates the potential of the described novel methodology to investigate footwear-surface combinations for controlled natural soil conditions. Combining these data with simultaneously measured pressures at different soil depths will allow the development of surface designs to best cope with the forces applied by the human.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Abstracts from the 6th International Conference on the engineering of Sport, 10-14 July 2006, Olympic Hall, Munich, Germany Abstracts

引用

SPORTS engineering 2006年第4期9卷 229-249页

作者： [Anonymous] TNO Netherlands Delcam plc UK Technological Institute of Toys AIJU Spain Technische Universitaet Muenchen Germany Hochschule für Gestaltung und Kunst Zuerich Germany Otto-v.-Guericke-University Magdeburg Germany AISTS-International Academy of Sports Science and Technology Lausanne Switzerland CSEM-Swiss Center for Electronics and Microtechnology Neuchâtel Swizerland University of Illinois at Urbana-Champaign USA Delft University of Technology Netherlands Faculty of Education Art and Science Yamagata University Japan Department of Mathematical Modelling Perm State Technical University Russia Department of Theoretical Mechanics Perm State Technical University Russia Department of Computational Fluid Dynamics JSC Aviadvigatel Perm Motors Russia Mechanical and Automotive Engineering RMIT University Japan Fluent Europe Ltd Sheffield UK SportKreativWerkstatt GmbH München Germany Sports Technology Research Group Loughborough University UK Department of Mechanical Engineering University of Bath UK Instituto de Biomecánica de Valencia (IBV) Spain University Augsburg UK Sports Engineering Research Group University of Sheffield England Sports-Equipment Technology Technikum Wien Austria Fischer GmbH Germany Biocompatible Materials and Process Engineering TU Munich Germany The University of Waikato New Zealand Sandvik Materials Technology Sweden Institute for Machine Tools and Industrial Management TU Munich Germany Institut fuer Verbundwerkstoffe GmbH Canada Sports Engineering Centre for Sports and Exercise Science Sheffield Hallam University England University of Glamorgan UK Department of Information Science and Engineering Tokyo Institute of Technology Tokyo Japan Toyota Motor Co. Aichi Japan Iowa Univeristy Iowa USA Simbex Lebanon USA Japan Institute of Sports Sciences Tokyo Japan University of Vienna Austria Technische Universität München Germany Department of Econometrics University of Groningen The Netherlands Department of Physical Education and Sport

A radical change (Feenstra, Holmer, Tromans, Moos and Mieritz 2003) in manufacturing is starting to occur. The Rapid Manufacturing, which can be defined as "the use of an additive manufacturing process to construct parts that are used directly as finished products or components", is set to supersede many current uses of moulds and dies. Rapid Manufacturing (Wohlers 2003) is based on new additive manufacturing techniques that produce fully functional parts directly from a 3D CAD model without the use of tooling. The ambitious scope of the European Initiative CUSTOM-FIT, a Framework 6 Integrated Project, is to create a fully integrated system for the design, production and supply of individualized custom-products. Within the cases under study there are strong connections to sporting articles. This project is being funded by the European Commission over the next four years and a half and will become central to European research concerning Rapid Manufacturing (RM).

关键词：

来源：评论

学校读者我要写书评

暂无评论

Numerical analysis of thermal-fluid flow between stationary and rotating parallel disks

引用

Journal of Flow Visualization and Image Processing 2005年第1期12卷 95-104页

作者： Torii, Shuichi Yang, Wen-Jei Department of Mechanical Engineering and Materials Science Kumamoto University Kumamoto 860-8555 Japan Mechanical Engineering and Applied Mechanics University of Michigan Ann Arbor MI 48109 United States

This paper investigates thermal-fluid transport phenomena in a laminar flow between a rotating bottom disk and a stationary upper disk, from whose center a circular jet is impinged on the heated horizontal bottom disk surface. Emphasis is placed on the effects of the Reynolds number, rotational velocity, and disk spacing on both the formations of velocity and thermal fields and the heat-transfer rate along the heated wall surface. The governing equations are discretized by means of a control volume technique and are numerically solved to determine the distributions of the velocity vector and fluid temperature under the appropriate boundary conditions. It is found from the study that (i) the recirculation zone which appears on the stationary disk moves along the outward direction with an increase in the Reynolds number, (ii) when the Reynolds number is increased, heat transfer performance is intensified over the whole disk surface and the minimum value of the heat-transfer rate moves in the downstream direction, and (iii) the heat-transfer rate is induced due to the disk rotation, whose effect becomes larger in the wider disk spacing. © 2005 Begell House, Inc.

关键词： Rotational flow

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：