Conventional air-conditioning (AC) systems produce considerable amount of cold condensate as moist air is cooled below the dew point. The condensate is commonly drained resulting in thermal loss. The waste thermal energy can be recovered to increase the overall coefficient of performance (COP) by ci.....
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The invention proposes the adding ay to the insidof a small time-dele differential link of a PID controller. The differential action efficiency is satisfactory when the time delay is little. In case the time delay is large, the differential action work will switch to the proportional control operati.....
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For years, mouse models have been used for testing new drugs, despite their high cost. More recently, the zebrafish has been identified by the National Institutes of Health (NIH) in the US as an important vertebrate model for studying the development of embryos and human diseases. When compared wi.....
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此項發明涉及專為射頻識別系統主動式標籤而設的微型折合式偶極子天線，並可與毫 .....
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This invention aims at enhancing and widening the spatial effect of stereo audio system. Traditional ways of enhancing the spatial effect of a stereo audio system may sound mechanical, and could be affected by external factors such as the auditory characteristics of the listeners. Our method conceal.....
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