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The risk of demand or production cost disruption is one of the challenging problems in the supply chain management. This paper explores a generalized supply chain game model incorporating the possible disruptions. We find that a nonlinear Grove wholesale price scheme can fully coordinate such a supply chain even when both market demand and production cost are disrupted. The nonlinear Grove wholesale price scheme has three sides to coordinate the decision behavior of the players. One is that the...
The risk of demand or production cost disruption is one of the challenging problems in the supply chain management. This paper explores a generalized supply chain game model incorporating the possible disruptions. We find that a nonlinear Grove wholesale price scheme can fully coordinate such a supply chain even when both market demand and production cost are disrupted. The nonlinear Grove wholesale price scheme has three sides to coordinate the decision behavior of the players. One is that the...
In this paper, we propose a novel approach for solving a fuzzy bi-objective multi-index fixed-charge transportation problem where the aim is to minimize two objectives: the total transportation cost and transportation time. The parameters of the problem, such as fixed cost, variable cost, and transportation time are represented as fuzzy numbers. To extract crisp values from these parameters, a linear ranking function is used. The proposed approach initially separates the main problem into sub-problems....
This paper is motivated by operating self service transport systems
that flourish nowadays. In cities where such systems have been set
up with bikes, trucks travel to maintain a suitable number of bikes
per station.
It is natural to study a version of the C-delivery TSP defined by
Chalasani and Motwani in which, unlike their definition, C is part
of the input: each vertex v of a graph G=(V,E) has a certain
amount xv of a commodity and wishes to have an amount equal to
yv (we assume that and all
quantities...
This paper is motivated by operating self service transport systems
that flourish nowadays. In cities where such systems have been set
up with bikes, trucks travel to maintain a suitable number of bikes
per station.
It is natural to study a version of the C-delivery TSP defined by
Chalasani and Motwani in which, unlike their definition, C is part
of the input: each vertex v of a graph G=(V,E) has a certain
amount xv of a commodity and wishes to have an amount equal to
yv (we assume that and all
quantities...
We study some problems of optimal distribution of masses, and we show that
they can be characterized by a suitable Monge-Kantorovich equation. In the case of scalar state functions, we show the equivalence with a mass transport problem, emphasizing its geometrical approach through geodesics. The case of elasticity, where the state function is
vector valued, is also considered. In both cases some examples are presented.
This paper
presents an application of Multiple Attribute Utility Theory on
strategic
choices concerning energy transportation. The environmental assessment
of a
network reinforcement strategy is emphasized. Our assessment brings
about to
consider multidimensional variables in MCDM. However, Multi-Attributed
Utility
Theory (MAUT) cannot, as a practical matter, manage such variables. We
therefore work out a methodology to transform multidimensional variables
into
unidimensional ones. We apply...
This paper presents a migration strategy for a set of mobile agents (MAs) in order to satisfy customers' requests in a transport network, through a multimodal information system. In this context, we propose an optimization solution which operates on two levels. The first one aims to constitute a set of MAs building their routes, called Workplans. At this level, Workplans must incorporate all nodes, representing information providers in the multimodal network, in order to explore it completely....
The analytical description of Φ-functions for two convex polytopes is investigated. These Φ-functions can be used for mathematical modelling of packing problems in the three-dimensional space. Only translations of the polytopes are considered. The approach consists of two stages. First the 0-level surface of a Φ-function is constructed, and secondly, the surface is extended to get the Φ-function. The method for constructing the 0-level surface is described in detail.
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