In air traffic flow management (ATFM), flights delays are most often caused by weather events, which are stochastic in nature. In practice however, these stochastic obstacles are dealt with deterministic strategies, e...
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The current energy transition has affected the design and operation of power networks, which need to incorporate Renewable Energy Sources (RES) to reduce their environmental footprint. More specifically, depending on ...
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This article presents a new model for pricing a new product considering skimming pricing strategy in the presence of the competition. We consider two periods for price setting including skimming and economy period. Th...
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ISBN:
(纸本)9789898425973
This article presents a new model for pricing a new product considering skimming pricing strategy in the presence of the competition. We consider two periods for price setting including skimming and economy period. The problem is deciding on a skimming price as well as an economy price in order to maximize the total profit. The derived model is a non-linear programming model and we analyzed the structure and properties of optimal solution to develop a solution method. Analytical results as well as managerial insights are presented by mathematical analysis and numerical analysis.
In this paper, an optimization method is proposed to compute the power flow feasible region's boundary. The boundary points of maximum load are directly and accurately computed through a non-linear programming mod...
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In this paper we deal with the parallel approximability of a special class of Quadratic programming (QP), called Smooth Positive Quadratic programming. This subclass of QP is obtained by imposing restrictions on the c...
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In this paper we deal with the parallel approximability of a special class of Quadratic programming (QP), called Smooth Positive Quadratic programming. This subclass of QP is obtained by imposing restrictions on the coefficients of the QP instance. The Smoothness condition restricts the magnitudes of the coefficients while the positiveness requires that all the coefficients be non-negative. Interestingly, even with these restrictions several combinatorial problems can be modeled by Smooth QP. We show NC Approximation Schemes for the instances of Smooth Positive QP. This is done by reducing the instance of QP to an instance of Positive Linear programming, finding in NC an approximate fractional solution to the obtained program, and then rounding the fractional solution to an integer approximate solution for the original problem. Then we show how to extend the result for positive instances of bounded degree to Smooth Integer programming problems. Finally, we formulate several important combinatorial problems as Positive Quadratic Programs (or Positive Integer Programs) in packing/covering form and show that the techniques presented can be used to obtain NC Approximation Schemes for `dense' instances of such problems.
Along with containing more and more PM2.5, the atmosphere is getting more and more harmful to the human's ***, the reseach in PM2.5 characteristics and governance method is extremly *** this thesis, the stepwise r...
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Phasor measurement units (PMUs) are widely used in modern power system state estimation because of their high sampling rate that can estimate the power system state in real time. However, since PMUs are expensive to i...
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Binaural reproduction for headphone-based listening is an active research area due to its widespread use in evolving technologies such as augmented and virtual reality (AR and VR). On the one hand, these applications ...
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Any Municipal distribution system consists of pipe network, valves and pressure generating facilities etc. Around 70% of total cost of any water distribution system is towards cost of pipe network only. Therefore, the...
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An extremum problem formulation for the equilibrium analysis of general structures made of stiffening material is applied to the analysis of trussed structures. The nonlinear material is modeled in a way to simulate a...
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