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91篇 您的检索式:作者名="Cretu"
    题名 作者 年代 出处 被引量
1残余压余力对球轴承疲劳寿命的影响显示文摘Cretu,ss 许新社 1990国外轴承1990,,1:2
2Fabrication and testing of polymer-based capacitive micromachined ultrasound transducers for medical imaging显示文摘The ultrasonic transducer industry is dominated by piezoelectric materials.As an emerging alternative,capacitive micromachined ultrasound transducers(CMUTs)offer wider bandwidth,better integration with electronics,and ease of fabricating large arrays.CMUTs have a sealed cavity between a fixed electrode and a suspended metalized membrane.Manufacturing cost and sensitivity are limiting factors in current CMUTs that depend on the fabrication equipment and,especially,on the materials used.For widespread use of CMUTs,a much lower fabrication cost that uses inexpensive materials,which maintain or improve upon existing sensitivity,is needed.Herein,a new fabrication process is described for polymer-based CMUTs(polyCMUTs)using the photopolymer SU-8 and Omnicoat.The first ultrasound B-mode image of a wire phantom created with a 64-element linear array using synthetic aperture beamforming techniques is presented.A 12 VAC signal superimposed on a 10 VDC signal was used on the transmission side,and only a bias-tee,with no amplifiers,was used on the receiving side.The low operational voltage and high sensitivity of this device can be partially attributed to a pre-biasing condition on the membrane.By using a novel sacrificial layer combined with a top electrode embedded inside the membrane,we demonstrated that SU-8 can be used to manufacture CMUTs inexpensively.Moreover,the fabrication used relatively simple equipment,and the number of fabrication steps was reduced compared to traditional CMUT fabrication.This new fabrication process has the potential to increase the use of CMUTs in the ultrasound market,including the market for wearable transducers.Carlos D.Gerardo Edmond Cretu Robert Rohling 2018Microsystems & Nanoengineering2018,4,1:2
3Synthesis and degradation of poly (2-hydroxyethyl methacrylate)-graft-poly (ε-caprolactone) copolymers显示文摘Adina Cretu Richard Gattin Laurent Brachais 2004Polym Degrad Stab2004,833,:1
4IMM-UKF versus frequency analysis 显示文摘Tudoroiu N Zaheeruddin M Cretu V 20101EEE Industrial Electronics Magazine2010,4,3:1
5A Numerical Procedure to Generate Non - Gaussian Rough Surface显示文摘Urzica Ana Cretu Spiridon 2010ACTA Tribologica2010,18,:1
6The Influence of Brand Image and Company Reputation where Manufacturers Market to Small Finns: A Customer Value Perspective 显示文摘Cretu A E Brodie R J 2007Industrial Marketing Management2007,,36:1
7A dunamic analysis of tapered roller bearing under fully flooded conditions, part 1 : theoretical formulation 显示文摘Cretu S Bercea I Mitu N 1995Wear1995,188,:1
8Stress sensor Gadd45 genes as therapeutic targets in cancer 显示文摘Cretu A Sha X’Tront J 2009Cancer Ther2009,,:1
9Human and rat glioma growth, invasion, and vascularization in a novel chick embryo brain tumor model 显示文摘CRETU A FOTOS J S LITTLE B W 2005Clinical & experimental metastasis2005,22,3:1
10A dunamic analysis of tapered roller bearing under fully flooded conditions, part 1 :theoretical formulation显示文摘Cretu S Bercea I Mitu N 1995Wear1995,188,12:1
11Coloured Gold Alloys显示文摘Cristian Cretu Elma van der Lingen 1999Gold Bulletin1999,32,4:1
12A dynamic analysis of tapered roller bearing under fully flooded conditions, part 1 :theoretical formulation显示文摘Cretu S Bereea I Mitu N 1995Wear1995,188,:1
13A dynamic analysis of tapered roller bearing under fully flooded conditions, part 2:results显示文摘Cretu S Mitu N Bercea I 1995Wear1995,188,:1
14Plant-derived anticancer agents-curcumin in cancer prevention and treatment显示文摘CRETU E TRIFAN A VASINCU A 2012Rev Med Chir Soc Med Nat Iasi2012,116,4:1
15Critical stress in rolling contact fatigue显示文摘Popinceanu N G Diaconescu E Cretu S 1981Wear1981,71,3:1
16Auto-Calibration of CapacitiveMEMS Accelerometers Based on Pull-in Voltage 显示文摘Rocha L A Dias R A Cretu E 2011MicrosystemTechnologies’2011,17,3:1
17The importance of screening and prenatal diagnosis in the identification of the numerical chromosomal abnormalities 显示文摘Neagos D Cretu R Sfetea RC 2011Maedica (Buchar)2011,6,3:1
18RF behavioral analysis ofthe pull-in dynamic transition显示文摘 Olffenbuttel Cretue 2004Micromechanicals Microengineer2004,14,:1
19A closed-loop digitally controlled MEMS gryoscope with unconstrained sigma-delta force-feedback显示文摘RAMAN J CRETU E ROMBOUTS P 2009IEEE Sensors Journal2009,9,3:1
20The importance of screening and prenatal diagnosis in the identification of the numerical chromosomal abnormalities 显示文摘Neagos D Cretu R Sfetea RC 2011Maedica ( Bu- char)2011,6,3:1
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