The present invention relates to an energy-saving system for three-phase induction motors and is based on the principle of variable voltage control at constant speed. It is composed of a microprocessor, exampling circuit, sensing circuit, acquiring circuit, firing circuit, and AC to AC converter. Th.....
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A fabric having moisture management function, which has a structure simulating plant structure and comprises at least two layers as follows: a bottom layer, which is of a leno or matt structure simulating main stem of plant, in which a number of yarns are grouped together to form a plurality of fabr.....
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The present invention relates a method of fabricating a piezoelectric device through micromachining piezoelectric-on-silicon wafer. The wafers are constructed so that piezoelectric layer is a single wafer having a thin layer from 5 to 50 mum.
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