Facility location-allocation models are used in a widespread variety of applications to determine the number of required facility along with the relevant allocation process. In this paper, a new mathematical model for the capacitated multi-facility location-allocation problem with probabilistic customer's locations and fuzzy customer’s demands under the Hurwicz criterion is proposed. Thi...

we consider the problem of continuous dynamic berth allocation to containerships in a tidal seaport. in some container ports, low water depth in coastal area causes many restrictions on providing vessel's services. therefore, berth allocation planning for relatively large vessels with high draft is subject to tidal conditions when the vessels are in the access channel as from anchorage are...

this paper offers an approach that could be useful for diverse types of layout problems or even area allocation problems. by this approach there is no need to large number of discrete variables and only by few continues variables large-scale layout problems could be solved in polynomial time. this is resulted from dividing area into discrete and continuous dimensions. also defining decision var...

Water is an essential yet constrained commodity for human communities and ecological systems depend on it. With population growth and economic development, water resource is increasingly declining. Over the past two decades, because of changes in population and climate, and relative welfare increase, the per capita consumption of water has increased. Thus, optimal use of available water resourc...

A general matrix equation for evolutionary equilibrium of sex allocation is derived. The equation allows calculation of ESS values of behavioural parameters in sex allocation models, and provides a conceptual framework in which such models can be viewed. A careful discussion is given of a number of examples from the literature. An attempt is made to clarify the assumptions behind different mode...

Synchromodality is a freight transport process in which information exchanged expeditiously order to maximize the benefits of different modes and nodes terms efficiency environmental impact. The aim study analyze problems synchronized intermodal traffic management between main port inland European corridors find reliable solutions these problems. Therefore, purpose this article investigate prob...

Real-time systems usually operate in an environment that changes continuously. These changes cause the performance of the system to vary during run time. An allocation of resources in this environment must be robust. Using the amount of load variation that the allocation can accommodate as a measure of robustness, we develop a mathematical formulation for the problem of robust resource allocati...

one of the most important problems in the system reliability optimization is redundancy allocation problem that has been studied in different system configurations. k-out-of-n structure is a general system configuration and offers enhanced capabilities for analyzing more design problems. hence, in this paper, the redundancy allocation problem of k-out-of-n systems is studied. in the most previo...