Morocco						                            
                            
						
 Research Article
												Minimization of Delivery Time in E-Commerce and the Impact on the Global Value Chain 						
Author(s): Benomar  Farah, Abdelali  Naciri Bensaghir and Tarras  IliassBenomar  Farah, Abdelali  Naciri Bensaghir and Tarras  Iliass             
						
												
				 In recent years, we observe that the robots are appearing in the world of logistics. The robotization of the supply chain represents undoubtedly one of the most effective ways to meet the challenges of the digitalization of trade and its consequences on the logistics chain. In this article, we model and we simulate the collective motion of robots in large storage warehouses. At the first time, we start by studying the Vicsek model and we try to expand this model, to add another zone of motion. Vicsek et al. in their simple model, they consider only the orientation zone of motion for each robot in the two-dimensional space. In this paper, we include a second zone of interaction named zone of repulsion R1 , where each robot attempts to maintain a minimum distance from the others. Our interest in this paper is to study, the effect to broaden the repulsion zon.. Read More»