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检索条件"机构=Program in Applied Physics"
2517 条 记 录,以下是2391-2400 订阅
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Two-channel spectroscopic reflectometry for in situ monitoring of blanket and patterned structures during reactive ion etching
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Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 2000年 第6期18卷 2785-2793页
作者: Stutzman, Brooke S. Huang, Hsu-Ting Terry Jr., Fred L. Applied Physics Program University of Michigan Ann Arbor MI 48109 United States Dept. of Elec. Eng. and Comp. Sci. University of Michigan Ann Arbor MI 48109 United States Applied Physics Program Dept. of Elec. Eng. and Comp. Sci. University of Michigan Ann Arbor MI 48109 United States
A low cost, high speed, high accuracy in situ thin film measurement system for real time process monitoring and industrial process control has been developed. The system features a two channel spectroscopic reflectome... 详细信息
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Signal Analysis of the Singing Voice: Low-Order Representations of Singer Identity  26
Signal Analysis of the Singing Voice: Low-Order Representati...
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26th International Computer Music Conference, ICMC 2000
作者: Mellody, Maureen Wakefield, Gregory H. Applied Physics Program University of Michigan United States Department of Electrical Engineering and Computer Science University of Michigan United States
Signals from 12 soprano and mezzo-soprano singers are analyzed with the modal distribution, a high-resolution time-frequency analysis method, to obtain measures of instantaneous amplitude and frequency of the signals... 详细信息
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Equilibrium Distribution of Heavy Quarks in Fokker-Planck Dynamics
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Physical Review Letters 2000年 第1期84卷 31-31页
作者: D. Brian Walton Johann Rafelski Program in Applied Mathematics University of Arizona Tucson Arizona 85721 Physics Department University of Arizona Tucson Arizona 85721
We obtain an explicit generalization, within Fokker-Planck dynamics, of Einstein's relation between drag, diffusion, and the equilibrium distribution for a spatially homogeneous system, considering both the transv...
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Twirling and Whirling: Viscous Dynamics of Rotating Elastic Filaments
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Physical Review Letters 2000年 第7期84卷 1623-1623页
作者: Charles W. Wolgemuth Thomas R. Powers Raymond E. Goldstein Department of Physics University of Arizona Tucson Arizona 85721 Division of Engineering and Applied Sciences Harvard University Cambridge Massachusetts 02138 Program in Applied Mathematics University of Arizona Tucson Arizona 85721
Motivated by diverse phenomena in cellular biophysics, including bacterial flagellar motion and DNA transcription and replication, we study the overdamped nonlinear dynamics of a rotationally forced filament with twis... 详细信息
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Bistable Helices
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Physical Review Letters 2000年 第7期84卷 1631-1631页
作者: Raymond E. Goldstein Alain Goriely Greg Huber Charles W. Wolgemuth Department of Physics University of Arizona Tucson Arizona 85721 Program in Applied Mathematics University of Arizona Tucson Arizona 85721 Department of Mathematics University of Arizona Tucson Arizona 85721
We extend elasticity theory of filaments to encompass systems, such as bacterial flagella, that display competition between two helical structures of opposite chirality. A general, fully intrinsic formulation of the d... 详细信息
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Chiral Self-Propulsion of Growing Bacterial Macrofibers on a Solid Surface
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Physical Review Letters 2000年 第7期84卷 1627-1627页
作者: Neil H. Mendelson Joelle E. Sarlls Charles W. Wolgemuth Raymond E. Goldstein Department of Molecular and Cellular Biology University of Arizona Tucson Arizona 85721 Department of Physics University of Arizona Tucson Arizona 85721 Program in Applied Mathematics University of Arizona Tucson Arizona 85721
Supercoiling motions that accompany the growth of bacterial macrofibers (multicellular filamentous structures formed in B. subtilis by cell division without separation) are responsible for rolling, pivoting, and walki... 详细信息
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Improved in vivo abdominal image quality using real-time estimation and correction of wavefront arrival time errors
Improved in vivo abdominal image quality using real-time est...
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IEEE Symposium (IUS) Ultrasonics
作者: K.W. Rigby C.L. Chalek B.H. Haider R.S. Lewandowski M. O'Donnell L.S. Smith D.G. Wildes GE Corporate Research and Development Center Schenectady NY USA Department of Biomedical Engineering and Applied Physics Program University of Michigan Ann Arbor MI USA
The speed of sound varies with tissue type, yet commercial ultrasound imagers assume it is constant. Sound speed variation in abdominal fat and muscle layers is widely believed to be largely responsible for poor image... 详细信息
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On the Perception of Transients: Applying Psychophysical Constraints to Improve Audio Analysis and Synthesis  26
On the Perception of Transients: Applying Psychophysical Con...
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26th International Computer Music Conference, ICMC 2000
作者: Wakefield, Gregory H. Heller, Laurie M. Carney, Laurel H. Mellody, Maureen Department of Electrical Engineering and Computer Science University of Michigan Ann ArborMI48109 United States Naval Submarine Medical Research Laboratory GrotonCT06359 United States Hearing Research Center Dept. of Biomedical Engineering Boston University BostonMA02215 United States Applied Physics Program University of Michigan United States
In a psychophysical experiment, a wideband, 4-ms noise is compared with spectrally smoothed versions of the noise. To isolate on the magnitude spectrum, the phase spectrum is controlled by assigning the same random ph...
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A room temperature unipolar quantum dot intersubband long wavelength (13.3 /spl mu/m) laser
A room temperature unipolar quantum dot intersubband long wa...
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IEEE Photonics Conference (IPC)
作者: S. Krishna P. Bhattacharya J. Singh J. Urayama T.B. Norris P.J. McCann K. Namjou Applied Physics Program Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI USA School of Electrical and Computer Engineering University of Oklahama Norman OK USA
Summary form only given. We report the room temperature operation of a novel unipolar self-organized quantum dot FIR laser (13.3 /spl mu/m) based on transitions between discrete bound electron states in self-organized... 详细信息
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An ESR spectroscopic analysis of proton and photon irradiated bone
An ESR spectroscopic analysis of proton and photon irradiate...
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Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
作者: Sang-Yeob Lee J.F. Copeland G.E. Chabot F.T. Greenaway Radiological Sciences Program Department of Physics and Applied Physics University of Massachusetts Lowell Lowell MA USA Radiological Physics Section Department of Radiology Beth Israel Deaconess Medical Center Harvard Institutes of Medicine Boston MA USA Department of Chemistry Clark University Worcester MA USA
Electron spin resonance (ESR) spectroscopy was used to analyze the persistent free radicals in irradiated bone. Human cortical bone samples were irradiated in vitro by a 160-MeV proton beam and a 6-MV photon beam, and... 详细信息
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