Recently completed and ongoing projects:
(1) Human movement simulation in virtual reality (completed, funding 24,000 yuan);
(2) Multi-channel PC control system for weak light detection (cooperation project of the Institute of Process Technology, Chinese Academy of Sciences, funding of 20,000 yuan, 2010-2011);
(3) Quantum efficiency and light modulation of blue LEDs driven by pulses Research on characteristics (National Natural Science Foundation of China general project, funding 300,000 yuan, 2011-2013)
Representative papers and patents:
(1) Lin Xu, Li Yusen, He Zhiyi , Research on the starting circuit of electronic ballast for high-power HID lamps, Power Electronics Technology, 44(8), 88-90, 2010
(2) Zhang Fulin, Lin Xu, Liao Xin, He Zhiyi, InGaN blue light Research on the relationship between LED quantum efficiency and injected current, Optoelectronics and Lasers, 20(11), 1442-1446, 2009
(3) He Zhiyi, Tian Jinping, Li Tiansong, Chen Mingsong, motion fusion of virtual human walking, computer Engineering, 35(22), 267-268, 2009
(4) Zhiyi He, Xiaojun Wang, William M Yen, Behavior of Mn ions in the trapping process of SrMg(SiO3)2:Mn,Dy , J. Luminescence., 122-123, 381-384, 2007
(5) Zhiyi He, Xiaojun Wang, William M Yen, Investigation on charging processes and phosphorescent efficiency of SrAl2O4:Eu,Dy, SrAl2O4 :Eu,Dy, J. Lumin., 119-120, 309-313, 2006
(6) Xiaojun Wang, Zhiyi He, Dongdong Jia, W. Strek, R. Dariusz, D. Hreniak, William M Yen, Crystal size dependence of the persistent phosphorescence in Sr2ZnSi2O7:Eu,Dy, J. Microelectronics, 36(3-6), 546-548, 2005
(7) He Zhiyi, Wang Yongsheng, Sun Li, Xu Xurong, Dynamic studies on the time resolved fluorescence of Sm in BaCl2, J. Lumin., 97(2), 102-106, 2002
(8) He Zhiyi, Wang Yongsheng, Sun Li, Xu Xurong, Optical absorption studies on the trapping states of CaS:Eu,Sm, J. Phys. Condensed Matter, 13(15), 3665, 2001
(9) He Zhiyi, Xu Zheng, Wang Yongsheng , Pure AC output electronic ballast for fluorescent lamps, utility model patent, ZL 01 201174.6, 2001
(10) He Zhiyi, Lin Xu, an intelligent LED pulse drive circuit, utility model patent, ZL 2009 2 0164803.5