检索结果-内蒙古大学图书馆

Carbon Nanospheres: Tunable Luminescent Carbon Nanospheres with Well-Defined Nanoscale Chemistry for Synchronized Imaging and Therapy (Small 36/2015)

引用

Small 2015年第36期11卷

作者： Prabuddha Mukherjee Santosh K. Misra Mark C. Gryka Huei-Huei Chang Saumya Tiwari William L. Wilson John W. Scott Rohit Bhargava Dipanjan Pan Department of Bioengineering University of Illinois at Urbana-Champaign 1304 W. Springfield Ave. Urbana IL 61801 USA Department of Chemistry University of Illinois at Urbana-Champaign 600 S. Mathews Ave. Urbana IL 61801 USA Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana IL 61801 USA Illinois Sustainability Technology Center University of Illinois at Urbana-Champaign Urbana IL 61801 USA Electrical and Computer Engineering Chemical and Biomolecular Engineering Chemistry and Mechanical Science and Engineering Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign 1304 W. Springfield Ave. Urbana IL 61801 USA Carle Foundation Hospital 502 N. Busey St. Urbana IL 61801 USA Departments of Bioengineering and Materials Science and Engineering 502 N. Busey St. Urbana IL 61801 USA Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana IL 61801 USA

来源：评论

学校读者我要写书评

暂无评论

Fano interference between resonant and leaky waves in 1D silicon photonic crystal microcavities

Fano interference between resonant and leaky waves in 1D sil...

引用

Conference on Lasers and Electro-Optics Europe

作者： Karan K. Mehta Jason S. Orcutt Rajeev J. Ram Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics Massachusetts Institute of Technology

ISBN: (纸本)9781479905928

Resonant integrated optical structures with spectra exhibiting asymmetric Fano line shapes [1] are of interest for a variety of devices, including integrated sensors, electro-optic modulators and all-optical switches. Here we observe such line shapes in the transmission spectra of waveguide-loaded 1D photonic crystal (PC) microresonators, resulting from interference between the resonant transmission of the bus WG's fundamental quasi-TE mode, and leaky nonresonant transmission of a second-order quasi-TE mode through the PC region. The continuum state transmitted through the PC microcavity itself uniquely allows for devices requiring no additional waveguides or reflecting elements [2]. Additionally, the devices are fabricated with 193-nm immersion photolithography in a CMOS memory process at Micron Technology [3], and though PC structures have previously been fabricated photolithographically [4], these are the first high-Q PC microcavity devices fabricated subject to the constraints and dielectric environment of a full electronics-capable CMOS process.

关键词： Electrooptical modulators Fano resonance Microcavity devices Photonic crystal cavities Photonic crystals Sensors

来源：评论

学校读者我要写书评

暂无评论

Calculation of the radar ambiguity function from time-domain measurement data for real-time, amplifier-in-the-loop waveform optimization

Calculation of the radar ambiguity function from time-domain...

引用

ARFTG Conference

作者： Matthew Fellows Charles Baylis Lawrence Cohen Robert J. Marks Department of Electrical and Computer Engineering Baylor University Wireless and Microwave Circuits and Systems Program Waco TX USA Naval Research Laboratory Radar Division Washington DC USA

The ambiguity function is a measure of a radar's range and Doppler detection capability. Cognitive radar systems require the capability to adjust the waveform in realtime to obtain desired range/Doppler detection capability while meeting stringent spectral requirements. While the ambiguity function of the waveform input to the transmitter can be simulated, it is the ambiguity function of the transmitter power amplifier's output waveform that will be used for the detection. As such, it is very helpful to be able to measure the ambiguity function output from a power amplifier in the optimization process. This paper describes a technique that can be used to quickly calculate the ambiguity function for the output waveform from the radar amplifier as measured on an oscilloscope. Brief examination is also given to the effect of amplifier nonlinearity on the ambiguity function.

关键词： Chirp Optimization Radar detection Radar measurements Doppler radar Distortion measurement

来源：评论

学校读者我要写书评

暂无评论

Optics: Large-Field-of-View Wide-Spectrum Artificial Reflecting Superposition Compound Eyes (Small 15/2014)

引用

Small 2014年第15期10卷

作者： Chi-Chieh Huang Xiudong Wu Hewei Liu Bader Aldalali John A. Rogers Hongrui Jiang Department of Electrical and Computer Engineering University of Wisconsin – Madison Madison WI 53706 USA Department of Materials Science and Engineering Beckman Institute for Advanced Science and Technology and Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA Department of Electrical and Computer Engineering McPherson Eye Research Institute Materials Science Program Department of Biomedical Engineering University of Wisconsin – Madison Madison WI 53706 USA

来源：评论

学校读者我要写书评

暂无评论

Controlled preparation of OS@au/Ag nanoshells with chitosan polyelectrolyte

Controlled preparation of OS@au/Ag nanoshells with chitosan ...

引用

2013 World Congress on engineering, WCE 2013

作者： Jiang, Xinbing Ding, Shujiang Yang, Guang Li, Ben Q. State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an 710049 China Department of Applied Chemistry School of Science Xi'an Jiaotong University Xi'an 710049 China Electronic Materials Research Laboratory Xi'an Jiaotong University Xi'an 710049 China Department of Mechanical Engineering Collage of Engineering and Computer Science University of Michigan United States

ISBN: (纸本)9789881925299

This paper discusses the effect of two crucial processing parameters (seed size and amount of ion solution) on the controlled seed-and-grow preparation of polystyrene@gold/silver nanoshells with chitosan (CHI) as a surface modifier. Experiments involved synthesizing PS nanospheres and functionalizing them with CHI. Au seeds were then attached onto the CHI-functionalized PS spheres and metal was subsequently deposited onto the PS spheres from metal ion solutions to form PS@metal nanoshells. It is found that Au seed size can have a profound effect on the seed coverage of PS surface and the quality (morphology and optical properties) of nanoshells. Use of smaller-sized seed sizes gives a better seed coverage and good quality nanoshells. Appropriate volumetric amount of K-gold/silver nitrate solution is required for obtaining a complete nanshell with desired shell thickness. These findings are confirmed by the TEM characterization and the UV-vis spectra of light absorption.

关键词： Chitosan

来源：评论

学校读者我要写书评

暂无评论

Radar waveform optimization to minimize spectral spreading and achieve target detection

Radar waveform optimization to minimize spectral spreading a...

引用

Texas Symposium on Wireless and Microwave circuits and systems, (WMCS)

作者： Matthew Fellows Charles Baylis Lawrence Cohen Robert J. Marks Wireless and Microwave Circuits and Systems Program Department of Electrical and Computer Engineering Baylor University Waco TX USA Radar Division Naval Research Laboratory Washington DC DC USA

Spectral spreading in radar systems is a concern that is related to the radar waveform. This paper describes a procedure to optimize a linear frequency-modulated chirp waveform for a desired ambiguity function while meeting spectral requirements. The minimax approach used for the optimization is described, and some example results for the optimization are presented. The integration of bench-top spectrum analyzer measurements into the optimization is presented, and the way forward in terms of measurement-based optimization is discussed.

关键词： Chirp Optimization Doppler effect Radar detection Frequency modulation Time-frequency analysis

来源：评论

学校读者我要写书评

暂无评论

5th International Symposium on Focused Ultrasound Abstracts

引用

JOURNAL OF THERAPEUTIC ULTRASOUND 2016年第SUPPL 1期4卷 1-1页

作者： [Anonymous] Rambam Health Care Campus Haifa Israel Stanford University Stanford CA USA University of Pennsylvania Philadelphia PA USA The Ohio State University Columbus OH USA University of Virginia Charlottesville VA USA Center for Nanomedicine/Wilmer Eye Institute Johns Hopkins University Baltimore MD USA Columbia University New York NY USA Sunnybrook Health Sciences Centre Toronto ON Canada Sunnybrook Research Institute Toronto ON Canada Clem Jones Centre for Ageing Dementia Research Queensland Brain Institute The University of Queensland St Lucia QLD Australia The University of Queensland Brisbane (St Lucia Campus) QLD Australia University of Leuven Leuven Belgium University of Maryland School of Medicine/Baltimore VAMC Baltimore MD USA Research & Development Service VA Maryland Healthcare System and University of Maryland School of Medicine Baltimore MD USA University of Maryland School of Medicine Baltimore MD USA Brigham and Women’s Hospital Boston MA USA Harvard Medical School Boston MA USA Boston University Boston MA USA National Institutes of Health Bethesda MD USA National Institutes of Health Clinical Center Bethesda MD USA University of Utah Salt Lake City UT USA Focused Ultrasound Foundation Charlottesville VA USA Vanderbilt University Nashville TN USA Georgia Institute of Technology Atlanta GA USA Cleveland Clinic Cleveland OH USA Institut Langevin Ondes et Images ESPCI ParisTech CNRS UMR 7587 INSERM U979 Paris France CENIR ICM CNRS U7225 INSERM U975 Paris France University Children’s Hospital Zurich Zurich Switzerland Jeju National University Jeju Republic of Korea Hospital for Sick Children Toronto ON Canada Centre for Image Guided Innovation and Therapeutic Intervention Toronto ON Canada Philips Healthcare Canada Toronto ON Canada Toronto Western Hospital Toronto ON Canada Thunder Bay Regional Research Institute Thunder Bay ON Canada Incheon St. Mary’s Hospital The Catholic University of Korea Incheon Republic of Korea Departme

来源：评论

学校读者我要写书评

暂无评论

Demonstration of generalized higher-order bessel-gauss beam solutions in optical resonators

Demonstration of generalized higher-order bessel-gauss beam ...

引用

Advanced Solid State Lasers, ASSL 2013

作者： Schimpf, D.N. Schulte, J. Putnam, W.P. Kärtner, F.X. Center for Free-Electron Laser Science DESY and Department of Physics University of Hamburg Notkestrasse 85 Hamburg 22607 Germany Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics Massachusetts Institute of Technology 77 Massachusetts Ave Cambridge MA 02139 United States

We propose azimuthally symmetric higher-order Bessel-Gauss beams, and experimentally demonstrate them as higher-order eigenmodes in optical resonators comprising aspheric mirrors. © OSA 2013.

ISBN: (纸本)9781557529824

We propose azimuthally symmetric higher-order Bessel-Gauss beams, and experimentally demonstrate them as higher-order eigenmodes in optical resonators comprising aspheric mirrors. © OSA 2013.

关键词： Optical resonators

来源：评论

学校读者我要写书评

暂无评论

Poster abstracts

引用

Sleep and Biological Rhythms 2016年第1期5卷 A1-A189页

作者： J. Ferrie M. Shipley F. Cappuccio E. Brunner M. Miller M. Kumari M. Marmot A. Coenen J. L. Castillo F. Araya G. Bustamante L. Montecino C. Torres S. Oporto J. Gronli E. Fiske R. Murison B. Bjorvatn E. Sorensen R. Ursin C. M. Portas S. Rajaraman A. Gribok N. Wesensten T. Balkin J. Reifman N. Dursunoglu S. Ozkurt S. Baser O. Delen S. Sarikaya P. Sadler P. Mitchell D. Françon M. Decobert B. Herve A. Richard G. Griebel P. Avenet B. Scatton G. L. Fur D. Eckert A. Jordan A. Wellman S. Smith A. Malhotra D. White D. Bruck I. Thomas A. Kritikos W. Oertel K. Stiasny-Kolster D. Garcia-Borreguero W. Poewe B. Hoegl R. Kohnen E. Schollmayer J. Keffel C. Trenkwalder A. Valle S. Roizenblatt F. Fregni P. Boggio S. Tufik K. Ward L. Robertson L. Palmer P. Eastwood D. Hillman J. Lee S. Mukherjee V. de Padova G. Barbato G. Ficca I. Zilli P. Salzarulo M. Veldi T. Hion V. Vasar M. Kull L. Nowak J. Davis Y. Latzer O. Tzischinsky S. Crowley M. Carskadon M. Anca-Herschkovitsch D. Frey J. Ortega C. Wiseman C. Farley K. Wright A. Campbell A. Neill K. Spiegel R. Leproult E. Tasali N. Scherberg E. van Cauter A. T. Noradina N. A. Karim I. Norlinah A. A. Raymond R. Sahathevan B. Hamidon E. Werth R. Poryazova R. Khatami C. Bassetti R. G. Beran L. Ainley G. Holand J. Duncan H. Kinney B. Davis B. Hood S. Frey C. Schmidt M. Hofstetter P. Peigneux C. Cajochen W.-P. Hu J.-D. Li C. Zhang L. Boehmer J. Siegel Q.-Y. Zhou Y. Sagawa H. Kondo T. Takemura H. Kanayama Y. Kaneko M. Sato T. Kanbayashi Y. Hishikawa T. Shimizu A. Viola L. James L. Schlangen D.-J. Dijk R. Andretic Y.-C. Kim K.-A. Han F. Jones R. Greenspan L. Sanford L. Yang X. Tang K. Dieter E. Uta H. Sven M. Richard N. Oyane S. Pallesen F. Holsten Y. Inoue M. Fujita N. Emura K. Kuroda N. Uchimura A. Johnston J. Astbury G. Kennedy K. Hoedlmoser M. Schabus T. Pecherstorfer S. Moser G. Gruber P. Anderer W. Klimesch N. Naidoo M. Ferber A. Pack D. Neu O. Mairesse G. Hoffmann A. Dris L. Lambrecht P. Linkowski P. Verbanck O. Le Bon N. Matsuura M. Yamao N. Adachi R. Aritomi Y. Komada H. Tanaka S. Shirak University College London London UK University College London London USA Warwick Medical School London UK Warwick Medical School Coventry USA Radboud University Nijmegen Nijmegen Netherlands Department of Neurology University of Chile Santiago Chile Neurology Service Hospital del Salvador Santiago Chile Family Health Center Juan Pablo II Santiago Chile Department of Biomedicine Section on Physiology Univeristy of Bergen Bergen Norway Department of Public Health and Primary Health Care Univeristy of Bergen Bergen Norway Department of Public Health and Primary Health Care University of Bergen Bergen Norway Norwegian Competence Center for Sleep Disorders Haukeland University Hospital Bergen Norway Department of Child and Adolescent Psychiatry Haukeland University Hospital Univeristy of Bergen Bergen Norway Department of Biomedicine University of Bergen Bergen Norway US Army Medical Research and Materiel Command Fort Detrick Frederick USA Walter Reed Army Institute of Research Silver Spring USA Department of Behavioral Biology Walter Reed Army Institute of Research Silver Spring USA Faculty Department of Pulmonology Pamukkale University Medical Denizli Turkey University of Ballarat Ballarat Australia Sanofi-Aventis Recherche et Developpement Paris France Brigham and Women’s Hospital Harvard Medical School Boston USA The University of Queensland Adelaide Australia School of Psychology University of Queensland Brisbane Australia The University of Queensland Brisbane Australia Victoria University Melbourne Australia Department of Psychology Victoria University Melbourne Australia School of Psychology Victoria University Melbourne Australia Philips-Universität Marburg Germany Philips-Universitaet-Marburg Marburg Germany Instituto de Investigaciones del Sueno Madrid Spain Universitätsklinik für Neurologie Innsbruck Austria Universitaetsklinik fuer Neurologie Innsbruck Austria IMEREM GmbH Nuernberg Germany Schwarz Pharma AG Monheim Germany

来源：评论

学校读者我要写书评

暂无评论

High harmonic surface acoustic wave devices for harsh environment sensor applications

High harmonic surface acoustic wave devices for harsh enviro...

引用

2012 MRS Fall Meeting

作者： Justice, J. Elbaz, M. Rodak, L.E. Korakakis, D. Lane Department of Computer Science and Electrical Engineering West Virginia University Morgantown WV 26506 United States U.S. Army Research Laboratory 2800 Powder Mill Road Adelphi MD 20783 United States

ISBN: (纸本)9781632661098

Surface acoustic wave (SAW) devices are ideal candidates for gas sensors due to their small size, low cost of production and high sensitivity. Increasing restrictions on pollution and emissions create the necessity for sensors that can operate in the harsh environments found in vehicle exhaust systems and industrial production. Gallium nitride (GaN) is a robust, chemically inert, piezoelectric semiconductor, making it an attractive material for SAW devices designed to detect and monitor gases in harsh environments. In this work, SAW devices designed to operate at the 5th and 7th harmonics are fabricated on GaN thin films and their performance is measured through insertion loss, signal to noise ratio, operating frequency and quality factor. Devices are directly exposed to the exhaust gas of a common diesel engine. Device performance is then remeasured and compared. SAW devices fabricated in this work have measured operating frequencies above 1 GHz, and quality factors up to and higher than 2000, depending on the harmonic mode. SAW devices on GaN showed good chemical stability and measured changes in device performance after exhaust exposure was negligible. © 2013 Materials research Society.

关键词： Diesel engines

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：