[1] WANG X P, CHEN T N, YANG Z X. Study on structural optimum design of implantable drug delivery micro-system [J].Simulation Modelling Practice and Theory,2007,15(1):47-56.
[2] WANG X P, CHEN T N, YANG ZH X, et al.. Modeling and simulation of drug release from implantable PLGA drug delivery system [J]. Journal of System Simulation, 2007,19(12):2816-2822. (in Chinese)
[4] YANG S, EVANS J. Metering and dispensing of powder; the quest for new solid freeforming techniques [J]. Powder Technology, 2007, 178 (1): 56-72.
[6] KUMAR AV, ZHANG H. Electro photographic powder deposition for freeform fabrication [J]. Solid Freeform Fabrication Proceedings, Austin, Texas, 1999: 647-653.
[7] LU X, YANG S, EVANS J R. Microfeeding with different ultrasonic nozzle designs [J]. Ultrasonics, 2009, 49 (6): 514-521.
[8] GENG X, HOU L Y, ZHANG W Y. Implementation of the powder dispensing of digitization[C]. IEEE, 2010: 1169-1175.
[9] ZHANG G L,GUO H,ZHAO CH SH. Experimental study on the feeding ability of ultrasonic powder-feeding device[J].Piezoelectric & Acoustooptics,2002,(6):489-491, 505.(in Chinese)
[10] YANG Y, LI X. Experimental and analytical study of ultrasonic micro powder feeding [J]. Journal of Physics D: Applied Physics, 2003, 36 (11):1349.
[11] GAI G S. Powder Engineering [M].Beijing: Qinghua University Press,2009.(in Chinese)