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2篇 您的检索式:作者名="A.Patterson"
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1Exploration of the optimisation algorithms used in the implementation of adaptive optics in confocal and multiphoton microscopy显示文摘Amanda J.Wright DavidBurns Brett A.Patterson Simon P.Poland Gareth J.Valentine John M.Girkin 2005Microsc. Res. Tech2005,,1:1
2DIELECTRIC AND PIEZOELECTRIC PROPERTIES OF(K,Na)NbO_(3)-BASED PIEZOELECTRIC CERAMICS显示文摘Solid solutions based on Li,Ta and Sb-doped(K_(0.5)Na_(0.5))NbO_(3)(KNN)lead-free perovskite systems were created using standard solid-state methods.X-ray diffraction was used to conrm that all compositions were single phase and to verify the phase transition from tetragonal to cubic at T_(C)=302℃.The three compositions examined,originally developed by Saito and Li,were shown to be strongly ferroelectric with sharp peaks in permittivity present at the Curie temperature.The optimum composition had loss tangent values below 5%up to 100 kHz at room temperature.Bipolar hysteresis measurements showed high values for both maximum polarization(25 and 21μC/cm^(2))and remenant polarizations(20 and 16μC/cm^(2))for undoped and 0.2 wt%CuO-doped samples.Maximum strain values of greater than 0.23%were observed.ERIC A.PATTERSON DAVID P.CANN 2011Journal of Advanced Dielectrics2011,1,3:0
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