because the blood is one of the most important requirements of each patient in different critical conditions, one of the concerns of the health centers is facing the blood shortage or blood corruption. therefore blood supply chain management tries to fill the gap between suppliers and consumers, which causes failing to counter the shortage and minimizing the blood product corruption and the cos...

Consider stochastic production-inventory control problem in which there are multiple capacity sources, multiple heterogeneous products, non-stationary demand and time-varying costs. If shortage costs can be evaluated the natural objective is to minimize expected production, inventory and shortage costs. Otherwise one can use service level requirements as target inventory while trying to minimiz...

We build an infinite-horizon dynamic deterministic general equilibrium model with imperfect markets (because of borrowing constraints), in which heterogeneous agents invest in capital or/and financial asset, and consume. There is a representative firm who maximizes its profit. Firstly, the existence of intertemporal equilibrium is proved even if aggregate capital is not uniformly bounded. Secon...

in this paper, a stochastic multi-depot multi-objective vehicle routing problem (vrp) is studied. based on observations in real-world problems, we develop an aspect of the problem, such as stochastic availability of routes. to solve the problem in this situation, a two-objective mathematical model is developed, in which the related objective functions are: (1) minimizing transportation costs an...

collateralized mortgage obligations are derivatives securities based on mortgage loans which issued in different maturities, interest rates and credit ratings. in iran attention to decision authorities for the first time allowed iran melli bank and maskan bank to issue this kind of securities. one of the main questions in issuing this kind of securities is maximizing the issuer profit by choosi...

In many engineering design problems, the explicit function form of objectives/constraints can not be given in terms of design variables. Given the value of design variables, under this circumstance, the value of those functions is obtained by some simulation analysis or experiments, which are often expensive in practice. In order to make the number of analyses as few as possible, techniques for...

Cloud computing has introduced a major shift in the IT delivery model by offering computing resources for hosting applications as a utility. This helps businesses and organizations to access advanced IT facilities offered by cloud providers without the expensive up-front investments necessary to establish their own infrastructure. In this context, significant research efforts have already been ...

Purpose – The objectives of this study are to investigate the relationship between hotel room demand and room rates, and to find a viable solution for the optimal room rate that maximizes the total profit. Design/methodology/approach – There are various studies in the literature on how room rates affect profitability, and how the optimal room rate that maximizes the total revenue can be determi...

The duck curve is becoming a global problem in energy technology due to the rapid increase solar power adoption and rise of prosumers. To address this issue, resource aggregator (RA) has emerged provide flexible solutions through aggregating prosumers demand response such as dynamic pricing. This paper proposes an optimal strategy for RA that dispatches pricing leverages battery system at both ...