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3篇 您的检索式:作者名="Danping REN"
    题名 作者 年代 出处 被引量
1Analysis and experimentation of key technologies in service-oriented optical internet显示文摘To satisfy diverse bandwidth-intensive applications envisioned in the internet of the future, research on a distributed optical internet, enabling efficient utilization of geographically distributed resources, has become attractive. The deployment of such a network, however, has its own technical challenges, including network architecture, resource management, and high-speed transmission. To address these issues, a service-oriented-architecture-based distributed optical internet architecture is proposed. Thereafter, key technologies of an optical internet, such as optical multicasting, distributed resource control, and high-speed transmission, are analyzed and investigated. The proposed schemes are verified through experimentation and simulation.JI YueFeng REN DanPing LI Hui LIU XueJun WANG ZhengZhong 2011Science China(Information Sciences)2011,54,2:3
2Is traditional rural lifestyle a barrier for quality of life assessment? A case study using the Short Form 36 in a rural Chinese population显示文摘Chaojie Liu Ningxiu Li Xiaohui Ren Danping Liu 2010Quality of Life Research2010,,1:1
3Effects of baffles on separation of aqueous ethanol solution with hollow fibers显示文摘The effects of baffles on the operation and mass-transfer characteristics in novel hollowfiber membrane contactor used in distillation were investi-gated.Hollowfiber membranes,coated with a 7μm polydimethyl-siloxane,were operated as structural packing in the separation of ethanol-water solutions.The parallelflow mode was chosen for separation due to the stronger driving force of the concentration difference,in which liquidflows through the lumens of thefibers and vaporflows countercurrent-wise outside thefibers.Two baffles were installed on the shell side of the membrane contactors to enhance separation,which had a round shape with a semi-lunar hole.The results show that both baffled and unbaffled membrane contactors gave better,more produc-tive separations than traditional packing in distillation,such as the excellent Sulzer Gauze BX structured packing.The baffled membrane contactors performed better than unbaffled ones,especially at high vapor velocities.The minimal HTU of membrane contactor with baffles could reach as low as 4.5 cm,and almost all the contactors could work well above the limit whereflooding normally occurs in conventional cases.Theoretical analysis predicted that baffles helped membrane module to obtain a higher mass-transfer coefficient and a smaller mass-transfer resistance.Finally,theoretical mass-transfer coefficient and experi-mental value were compared as well as the contribution of each individual mass-transfer coefficients among liquid,gas and membrane.Zhihong YANG Guoliang ZHANG Lan LIN Danping REN Qin MENG Hongzi ZHANG 2009Frontiers of Chemical Science and Engineering2009,3,1:0
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