Vehicle emission is a significant source of air pollution problem in urban areas. Traditional test methods are often limited by high cost, low efficiency and limited functionality, preventing their urban applications. The On-road Plume Chasing and Analysis System (OPCAS) provides an alternative and .....
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Worldwide electricity demand will rise to 30,116 billion kilowatt-hours in 2030 which is more than double the 2003 level. To control the energy demand and increase the electricity generation efficiency, we have developed a ZigBee wireless sensor network for advanced metering infrastructure. The syst.....
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Quite a number of technologies have been adopted to avoid human mistakes in hospital operations - from traditional barcode to the popular Wi-Fi technology, etc. Although barcode system has low cost and requires no battery to operate, its features are very limited. Medical staff has to locate the equ.....
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Active RFID is a long range wireless tag system, which is ideal for warehouses, access control and human/properties tracking, and whose operations extend throughout a wide ranging area. The benefits of using active RFID not only include its outstanding operation range, but also its flexibility and .....
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The invention can significantly reduce the DC-link capacitance in general power electronic systems through the use of a series voltage compensator. The lifespan of electrolytic capacitors, a component of power electronic systems, is cut short when ambient temperatures rise, and therefore many electr.....
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