This invention presents light maximization method for LED systems. Derived from a general theory that links the photometric, electric and thermal behaviours of LED systems together, the method provides the rules to design LED systems with maximum light output. Its main contribution is to provide cle.....
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Considerable amount of dyeing wastewater is released from different industries, which has caused serious environmental issues including hazardous compounds emissions and disruption of biological balance in water bodies. This project aims to develop a novel ozone catalytic oxidation-based water treat.....
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The invention offers an economical and versatile approach to construct titania-based photonic structures using well-established, solution-based electrochemical techniques. Film thickness is precisely controlled. The use of expensive equipment can be minimized.
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Axial mode helix antennas are used as RFID base station antennas but the number of winding of helix antennas are at least 10, making them too high for use as base station antennas. To address the problem, an integrated wire elliptical helical antenna with novel cuboids dielectric resonator loading f.....
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Transformers are used for energy and signal transfer and for providing electrical isolation. CityU researchers have developed a coreless PCB-based transformer that does not require a transformer core, thereby reducing production cost and simplifying the automated manufacturing of transformers. The i.....
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