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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The introduction of T5 (High-efficiency) and T5 (High-output) fluorescent lamps has increased the types of commonly used tubular fluorescent lamps from 9 to 18. Since each type of lamp must be powered by a specific ballast design, ballast manufacturers have to design 18 types of ballasts to cover th.....
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Cubic boron nitride (cBN) is only second to diamonds in terms of hardness and thermal conductivity. However, cBN films are usually thinner and are grown on many substrates, which undermine their hardness, adherence and stability. The multilayer coating (MLC) developed by CityU overcomes the problems.....
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CityU inventors have developed an apparatus that can operate with electronic ballasts to drive DC-powered lighting equipment such as LED lamps, halogen lamps and incandescent lamps. Lamps installed with this apparatus do not need to substitute existing electronic ballasts with LED ballasts. The prop.....
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The relational database and the XML markup language are the core technologies for enabling data exchange while preserving data persistence, but no complete solution for bridging the two exists as yet. Enterprises currently need to develop software specifically for interfacing these two key technolog.....
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