During the turn-on and turn-off switching processes, power converters have to withstand high voltage and current, leading to high switching losses and stresses. The invention is a passive lossless snubber cell with minimum stress and wide soft-switching range. The energy reset / recirculation proces.....
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A magnetic bit cell and its corresponding data read / write method is developed for potential use in computer or portable devices. The conductive bit cell can be switched between two stable magnetic configurations by the application of a small current perpendicular to the plane.
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SMS (Short Message Service) provides direct and instant communication among mobile phone users and has become an extremely popular communication tool nowadays. However, during the transmission of SMS, the message could be logged by the service provider or eavesdropped by a third party. An SMS mess.....
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This novel antenna developed by CityU has high gain and wideband characteristics, and can be used as an element for constructing antenna arrays. Bandwidth and gain enhancement techniques cannot usually be implemented at the same time, since the structure may become very complicated or bulky. The inv.....
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The technology complements the on-chip monitoring of cellular reactions by exposing cells, isolated in a sandbag structure, to different concentrations of analytes or drugs in a one-step operation. The tapering microchannel structure controls the concentration and dosage of the analytes. Another maj.....
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