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		 Journal of System and Management Sciences --- Vol.3, No. 3 
		 
		 
		
		A  Model  of  Targeted  
		Advertising  Based  on Consumer  Purchase  History 		 
		Jianqiang Zhang, Weijun Zhong, Shue Mei........................................................................................................1 Jin-Nan 
		Wu, Lin Liu , Nianxin Wang , Zhining Wang.......................................................................................14 
		A 
		Study of Courier Service Quality Improvement Based on a Two-stage QFD		  Baoqin 
		Yu , Shuo Zhang , Shuping Wu , Jin Xie................................................................................................26 
		
		Analysis and Calculation of read Distance in Passive backscatter RFID 
		Systems		  Yanghua Gao , 
		Zhihua Zhang, Hailiang Lu, Huanwen Wang...........................................................................34 
		
		Price competition model in centralized and decentralized supply chains 
		with demand disruption		  Wenlong Chai, 
		Huijun Sun, Wei Wang, Jianjun Wu..........................................................................................42 
		
		Commitment contract in dual channel drop shipping supply chain		  Jinshi Zhao, 
		Yongrui Duan, Shijin Wang, Jiazhen Huo....................................................................................51 
		
		Improvement of traceability processes in the farmed fish supply chain		  Alfredo Parreño 
		Marchante, Alejandro Alvarez Melcon, Mira Trebar, Andrej Grah, and Piero 
		Filippin..............................58 
		
		Business model analysis for Chinese social networking website		  Jingyi Yang........................................................................................................................................................78 
 
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