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20篇 您的检索式:作者名="Michael Kraft"
    题名 作者 年代 出处 被引量
1Design of freeform geometries in a MEMS accelerometer with a mechanical motion preamplifier based on a genetic algorithm显示文摘This paper describes a novel,semiautomated design methodology based on a genetic algorithm(GA)using freeform geometries for microelectromechanical systems(MEMS)devices.The proposed method can design MEMS devices comprising freeform geometries and optimize such MEMS devices to provide high sensitivity,large bandwidth,and large fabrication tolerances.The proposed method does not require much computation time or memory.The use of freeform geometries allows more degrees of freedom in the design process,improving the diversity and performance of MEMS devices.A MEMS accelerometer comprising a mechanical motion amplifier is presented to demonstrate the effectiveness of the design approach.Experimental results show an improvement in the product of sensitivity and bandwidth by 100%and a sensitivity improvement by 141%compared to the case of a device designed with conventional orthogonal shapes.Furthermore,excellent immunities to fabrication tolerance and parameter mismatch are achieved.Chen Wang Xiaoxiao Song Weidong Fang Fang Chen Ioannis Zeimpekis Yuan Wang Aojie Quan Jian Bai Huafeng Liu Gerold Schropfer Chris Welham Michael Kraft 2020Microsystems & Nanoengineering2020,6,1:6
2MEMS gyroscope control system using a band-pass continuous-time sigma-delta modulator显示文摘This paper presents a MEMS gyroscope control system of using a high-order band-pass continuoustime sigma-delta modulator.Compared with a low-pass discrete-time sigma-delta modulator based solution,the band-pass modulator can considerably decrease the sampling frequency;moreover,the continuous-time architecture has an obvious advantage on PCB prototyping and shorter lead time of the implementation in hardware.System level simulations using MATLAB/Simulink show the proposed sixth order sigma-delta modulator can achieve a high SNR of 100 dB for an angular rate input with an amplitude of 200/s and a frequency of32 Hz.A PCB circuit implementation is simulated using Orcad/PSpice to analyze the stability,and implemented in hardware.Measurement of the power spectral density of the output bitstream reveals a noise floor of90 dBV/Hz1/2.The prototype is tested on a rate table with an angular rate input,verifying that the principle of the approach of using an electro-mechanical band-pass sigma-delta modulator control system for a MEMS gyroscope.DING HaiTao YANG ZhenChuan WANG ZhanFei KRAFT Michael YAN GuiZhen 2013Science China(Information Sciences)2013,56,10:5
3Hyperglycemia, Insulin Resistance, Impaired Pancreatic β-Cell Function, and Risk of Pancreatic Cancer显示文摘Brian M. Wolpin Ying Bao Zhi Rong Qian Chen Wu Peter Kraft Shuji Ogino Meir J. Stampfer Kaori Sato Jing Ma Julie E. Buring Howard D. Sesso I-Min Lee John Michael Gaziano Anne McTiernan Lawrence S. Phillips Barbara B. Cochrane Michael N. Pollak JoAnn E. Ma 2013JNCI Journal of the National Cancer Institute2013,,14:2
4Design of a large-range rotary microgripper with freeform geometries using a genetic algorithm显示文摘This paper describes a novel electrostatically actuated microgripper with freeform geometries designed by a genetic algorithm.This new semiautomated design methodology is capable of designing near-optimal MEMS devices that are robust to fabrication tolerances.The use of freeform geometries designed by a genetic algorithm significantly improves the performance of the microgripper.An experiment shows that the designed microgripper has a large displacement(91.5μm)with a low actuation voltage(47.5 V),which agrees well with the theory.The microgripper has a large actuation displacement and can handle micro-objects with a size from 10 to 100μm.A grasping experiment on human hair with a diameter of 77μm was performed to prove the functionality of the gripper.The result confirmed the superior performance of the new design methodology enabling freeform geometries.This design method can also be extended to the design of many other MEMS devices.Chen Wang Yuan Wang Weidong Fang Xiaoxiao Song Aojie Quan Michiel Gidts Hemin Zhang Huafeng Liu Jian Bai Sina Sadeghpour Michael Kraft 2022Microsystems & Nanoengineering2022,8,1:2
5Citizen Participation and NIMBY Syndrome: Public Response to Radiocative Waste Disposal 显示文摘Kraft Michael E Bruce B Clary 1991The western Political Qarterly1991,,2:1
6Citizen Participation and NIMBY syndrome Public Response to Radiocative Waste Disposal显示文摘Kraft Michael E Bruce B Clary 1991The wastem Political Qarterly1991,,2:1
7A novel micromachined accelerometer capacitive interface显示文摘Michael Kraft Christopher Lewis Thomas Hesketh 1998Sensors and Actuators A1998,,68:1
8Hyperglycemia, Insulin Resistance, Impaired Pancreatic β-Cell Function, and Risk of Pancreatic Cancer显示文摘Brian M. Wolpin Ying Bao Zhi Rong Qian Chen Wu Peter Kraft Shuji Ogino Meir J. Stampfer Kaori Sato Jing Ma Julie E. Buring Howard D. Sesso I-Min Lee John Michael Gaziano Anne McTiernan Lawrence S. Phillips Barbara B. Cochrane Michael N. Pollak JoAnn E. Ma 2013JNCI Journal of the National Cancer Institute2013,,14:1
9An in- vestigation into PEEK-on-PEEK as a bearing surface can- didate for cervical total disc replacement显示文摘Kraft Markus Koch David K Bushelow Michael 2012Spine J2012,12,7:1
10Microembossing of ultrafine grained Al: microstructural analysis and finite element modelling显示文摘Xiao Guang Qiao Mamadou T Bah Jiuwen Zhang Nong Gao Zakaria Moktadir Michael Kraft Marco J Starink 2010Journal of Micromechanics and Microengineering2010,,10:1
11Treatment of electrolyte disorders in adult patients in the intensive care unit显示文摘MICHAEL D. KRAFT IMAD F. BTAICHE GORDON S. SACKS KENNETH A. KUDSK 2005American Journal of Health-System Pharmacy2005,,16:1
12Differential impact of hyponatremia and hepatic encephalopathy on health-related quality of life and brain metabolite abnormalities in cirrhosis<!-- Doctopic: CIRR -->显示文摘Vishwadeep Ahluwalia James B. Wade Leroy Thacker Kenneth A. Kraft Richard K. Sterling R. Todd Stravitz Michael Fuchs Iliana Bouneva Puneet Puri Velimir Luketic Arun J. Sanyal HoChong Gilles Douglas M. Heuman Jasmohan S. Bajaj 2013Journal of Hepatology2013,,:1
13Micromachined vibratory gyroscopes controlled by a high-order bandpass sigma-delta modulator 显示文摘Dong Yufeng Michael Kraft William Redmanwhite 2007IEEE Sensor Journal2007,1,7:1
14Mast cell TNF receptors regulate responses to Mycoplasma pneumoniae in surfactant protein A (SP-A) ?/? mice显示文摘Bethany J. Hsia Julie G. Ledford Erin N. Potts-Kant Vinayak S. Nikam Njira L. Lugogo W. Michael Foster Monica Kraft Soman N. Abraham Jo Rae Wright 2012The Journal of Allergy and Clinical Immunology2012,,1:1
15Differential impact of hyponatremia and hepatic encephalopathy on health-related quality of life and brain metabolite abnormalities in cirrhosis显示文摘Vishwadeep Ahluwalia James B. Wade Leroy Thacker Kenneth A. Kraft Richard K. Sterling R. Todd Stravitz Michael Fuchs Iliana Bouneva Puneet Puri Velimir Luketic Arun J. Sanyal HoChong Gilles Douglas M. Heuman Jasmohan S. Bajaj 2013Journal of Hepatology2013,,3:1
16Short Telomeres and Stem Cell Exhaustion Model Duchenne Muscular Dystrophy in mdx/mTR Mice显示文摘Alessandra Sacco Foteini Mourkioti Rose Tran Jinkuk Choi Michael Llewellyn Peggy Kraft Marina Shkreli Scott Delp Jason H. Pomerantz Steven E. Artandi Helen M. Blau 2010Cell2010,,7:1
17Myrick Freeman Introduction:Economic and Political Issues in Risk Anaiysis显示文摘Michael E Kraft A 2005Risk Analysis2005,,3:1
18Sputum eosinophil counts predict asthma control after discontinuation of inhaled corticosteroids显示文摘Aaron Deykin Stephen C. Lazarus John V. Fahy Michael E. Wechsler Homer A. Boushey Vernon M. Chinchilli Timothy J. Craig Emily Dimango Monica Kraft Frank Leone Robert F. Lemanske Richard J. Martin Gene R. Pesola Stephen P. Peters Christine A. Sorkness Stan 2005The Journal of Allergy and Clinical Immunology2005,,4:1
19Citizen participation and the NIMBYsyndrome:public response to radioactive waste disposal显示文摘Michael Kraft Bruce Clary 1991Political Research Quarterly1991,,2:1
20通过控制养护条件来提高混凝土路面砖质量和降低成本显示文摘“……尽可能简单,但不要太简单”是艾尔伯特·爱因斯坦的名言。若将它引申到混凝土路面砖和混凝土砌块行业,可归结为:现代预制混凝土产品在硬质景观领域的客户,不仅需要更短的交货时间,而且产品还要有更高的品质。Michael Kraft 崔玉忠(译) 2016建筑砌块与砌块建筑2016,,4:0
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