Speed sensors are customarily used to detect the speed of power electronic driven motors, but that speed sensors could render the motor drive system unreliable. However, there are very few detection devices other than speed sensors that can generate readings when the motor drives are in a resting mo.....
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The heat-reclaim liquid-filled glazing system includes a double-pane window glazing with a water-to-water heat exchanger. Two distribution headers are connected to the heat exchanger through insulated distribution tubes attached to the two sides of the window frame. The sealed space between the glas.....
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Some handheld electronic devices that require a directional pattern are equipped with directional printed antennas, along with a large ground plane. However, such an arrangement is cumbersome and expensive for small devices. The drawback inspires the invention of this novel unidirectional antenna fo.....
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The invention is a hybrid photovoltaic/thermal collector that converts solar energy to electrical energy and thermal energy by using photovoltaic cells and thermal energy collector respectively. This solar collector comprises a layer of photovoltaic (PV) cells laminated to the surface of a thermal c.....
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The wideband active quasi-circulator developed by CityU allows simultaneous transmission and reception of signals from an antenna to different transmit and receive path signals without using separated filters. It enables a single device to operate in multiple bands and replace the separate blocks of.....
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