نتایج جستجو برای: stochastic demands

تعداد نتایج: 188893  

Irrigation water management is crucial for agricultural production and livelihood security in many regions and countries throughout the world. Over the past decades, controversial and conflictladen water-allocation issues among competing municipal, industrial and agricultural interests have raised increasing concerns. Particularly, growing population, varying natural conditions and shrinking wa...

The impact of different energy storages on power systems has become more important due to the development of energy storage technologies. This paper optimizes the stochastic scheduling of a wind-based multiple energy system (MES) and evaluates the operation of the proposed system in combination with electrical and thermal demand-response programs and the three-mode CAES (TM-CAES) unit. The prop...

Ghorbanali Moslemipour

This paper aims at proposing a quadratic assignment-based mathematical model to deal with the stochastic dynamic facility layout problem. In this problem, product demands are assumed to be dependent normally distributed random variables with known probability density function and covariance that change from period to period at random. To solve the proposed model, a novel hybrid intelligent algo...

Hamidreza Rezaei, Mahdi Bashiri,

In this paper, we propose an extended relocation model for warehouses configuration in a supply chain network, in which uncertainty is associated to operational costs, production capacity and demands whereas, existing researches in this area are often restricted to deterministic environments. In real cases, we usually deal with stochastic parameters and this point justifies why the relocation m...

Decision making plays an important role in economics, psychology, philosophy, mathematics, statistics and many other fields. In each field, decision making consists of identifying the values, uncertainties and other issues that define the decision. In any field, the nature of the decisions is affected by environmental characteristics. In this paper, we are considered the production planning pro...

Journal: :Transportation Science 2023

Two-echelon distribution systems are often considered in city logistics to maintain economies of scale and satisfy the emission zone requirements cities. In this work, we formulate two-echelon vehicle routing problem with stochastic demands as a chance-constrained optimization problem, where total demand customers each second-echelon route should fit within capacity high probability. We propose...

Journal: :Information Sciences 2021

Bike-sharing networks have become a carbon-emission and environmentally friendly form of transportation in recent years. However, the asymmetric demand patterns user behaviour, both temporally spatially, inevitably lead to an imbalance distribution shared bikes cities, thereby becoming greatest obstacle networks’ development. Based on real-world data cycling trips, we analyse challenging proble...

Journal: :European Journal of Operational Research 2007
Dag Haugland Sin C. Ho Gilbert Laporte

This paper considers the problem of designing districts for vehicle routing problems with stochastic demands. In particular, demands are assumed to be uncertain at the time when the districts are made, and these are revealed only after the districting decisions are determined. Tabu search and multistart heuristics for this stochastic districting problem are developed and compared. Computational...

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