The present invention relates to nano-emulsions and powders wool, their preparation and use. In order to provide a simple and nano wool preparation of emulsions and powders, the present invention provides: a base catalyzed hydrolysis of treatment of wool, the protein emulsion was prepared, its furth.....
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一种电容式微加工超声换能器(CMUT)(200)，该电容器微加工超声换能器包括：操作地连接至顶部电极(210)的薄膜(220)和具有凹穴(230)的底部电极。在施加直流(DC)偏压时，所述薄膜(220)朝向所述底部电极挠曲，使得所述薄膜(220)的周边边缘区域接近所述底部电极，并且所述薄膜的所述周边边缘区域附近的静电力得到增加。
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一种超声波换能器驱动器，所述驱动器具有大磁致伸缩元件、用于在机械压力下保持大磁致伸缩元件的紧固件、用于提供偏磁场的第一磁场产生器、用于提供磁性驱动场的第二磁场产生器、以及用于在磁致伸缩元件中引导磁场通道的磁性回路。用于接合装置的超声波换能器具有：在较小端处具有接合工具的角状部以及邻接至其上的安装桶状部。所述驱动器连接到角状部的较大端。
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The present invention provides a simple and effective compensation for voltage transients of the reference signal generator, which consists of the relay, and the Butterworth filter, linking together, the input signal passes through the reference signal generator to generate a total low harmonic dist.....
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The invention provides an apparatus for measuring the dynamic thermal and moisture transfer of textile fabric, and comprises a bionics model component, at least a group of second sensors and a data collecting and controlling device. The bionics model component includes a heat retainer, a sweat disch.....
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