labyrinth spillway is an appropriate option to pass pmf discharge. the most advantages of this type of spillway are higher discharge capacity, easy aeration as well as low fluctuations of flow surface. it is essential to find the optimum geometry considering the maximum passing discharge under specific hydraulic conditions with minimum construction cost. in this study, fuzzy inference system (f...

We studied a class of Service Overlay Network (SON) capacity allocation problem with Grade of Service (GoS) constraints. Similar problems in the literature are typically formulated as either a Maximum Profit (MP) optimization problem or a Minimum Cost (MC) optimization problem. In this article we investigate the relationship between the MP and MC formulations. When the service charges are zero,...

In this paper, we explore the issue of coordination in a manufacturer-retailer supply chain where the manufacturer is socially responsible and invests in CSR activities. On the other hand, the retailer invests in promotional efforts and uses a periodic review order-up-to policy for replenishing items. First, the decentralized decision-making structure is modeled to calculate the minimum accepta...

  The present study is an attempt towards remodeling cost, revenue and profit relationship within the network process. The previous models of Data Envelopment Analysis (DEA) have been too general in their scope and focused on the input and the output within a black box system, therefore they have not been able to measure various phases simultaneously within a network system. By using these mod...

& This article proposes optimal bidding strategies for a generation company (GenCo) considering risk of profit variation by self-organizing hierarchical particle swarm optimization with time-varying acceleration coefficients (SPSO-TVAC). Based on a trade-off technique, the expected profit maximization and risk minimization are achieved. Nonconvex operating cost functions of thermal generation u...

This article studies a performance-based warranty for products subject to competing hard and soft failures. The two failure modes are in the sense that either one, on “whichever-comes-first” basis, can cause product fail. A not only covers repair or replacement of any defect, but also guarantees minimum performance level throughout period. In this article, we propose three compensation policies...

Counterfactual conditionals are cognitive tools that we incessantly use during our lives for judgments, evaluations, decisions. Counterfactuals are used for defining concepts as well; an instance of this is attested by the notions of opportunity cost and excess profit, two all-pervasive notions of economics: They are defined by undoing a given scenario and constructing a suitable counterfactual...

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...

I consider two scenarios of prospective P2PCloud interaction. In the first one, client peers are interested in sharing video content with the help of the cloud. Due to a limited monetary budget, only a small fraction of the clients can have the content delivered directly via the cloud servers. The rest need to engage in a mesh-pull P2P broadcast to exchange the content among them. I propose a n...