Zhenlei Xu

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Surfactants have wide use all over world. This study summarizes the characteristics and classification of surfactants. Surfactants have wide application in commodity and industry. A large number of surfactant containing wastewater are discharged into the environment, resulting in harming aquatic life, polluting the water and endangering human health.(More)
LED module with multiple chips on silicon substrate becomes one of the mainstream light engine designs. Compared to conventional discrete LED package, which based on single die, module design with multi LED dies is necessary to fulfill the high luminous requirement for various lighting applications. Fabrication of the silicon based substrate can take the(More)
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