The problem of determining the sequence of a set of jobs with the objective function of minimizing the maximum earliness and tardiness in one machine is studied. &#10 Production systems like JIT are one of the many applications of the problem. This problem is studied in special cases and their optimal solutions are introduced with simple orders. In general, some effective conditions for ne...

An Iterated Local Search method for the constrained two-dimensional non-guillotine cutting problem is presented. This problem consists in cutting pieces from a large stock rectangle to maximize the total value of pieces cut. In this problem, we take into account restrictions on the number of pieces of each size required to be cut. It can be classified as 2D-SLOPP (two dimensional single large o...

This paper presents a method to improve the accuracy of DC Optimal Power Flow problem, based on evaluating some nodal shares of transmission losses, and illustrates its efficiency through comparing with the conventional DCOPF solution, as well as the full AC one. This method provides three main advantages, confirming its efficiency: 1- It results in such generation levels, line flows, and noda...

One of the main problems of car-like robot is robust path following in the presence of sliding effect. To tackle this problem, a robust mix H2/H∞ static state feedback control method is selected. This method is the well-known linear robust controller which is robust against external disturbance as well as model uncertainty. In this paper, the path following problem is formulated as linear matri...

PCOS is still a problem in gynecology and infertility. Especially in ART the problem of PCOS patients is bigger and more highlighted. These patients are prone to over and under stimulation. Strategies to overcome hyper stimulation are: use of metformin, ovarian drilling, use of minimal stimulation, suppressing LH with use of OCP or GnRh analogues, use of GnRh antagonist in COH. But none of thes...

female- headed house holds as one of social harmful groups in front of various problems in life among exist conflict at family. the work roles cause doual roles which are important problem for wemen. in this research, effort to use from grounded theory method and done deep interview to 25 person from female- headed house holds refer to main problem of this women. results data analysis and parad...

problem of evil is something which is considered against existence of god or his attributes like being omnipotent and absolutely good. philosophers and theologians have tried to solve this problem by different ways. the solution which is accepted by muslim philosophers is the nothingness of evils. according to this opinion evils are not except nothing of essence or perfections of essence. in th...

We consider the eigenvalue problem for the following p-Laplacian-like equation: −div(a(|Du| p)|Du| p−2 Du) = λf (x, u) in Ω, u = 0 on ∂Ω, where Ω ⊂ R n is a bounded smooth domain. When λ is small enough, a multiplicity result for eigen-functions are obtained. Two examples from nonlinear quantized mechanics and capillary phenomena, respectively, are given for applications of the theorems.

This paper proposes a method to improve the shortest path problem on a NURBS (Non-uniform rational basis spline) surfaces. It comes from an application of the theory in classic differential geometry on surfaces and can improve the distance problem not only on surfaces but in the Euclidean 3-space R . Keywords—shortest paths, geodesic-like method, NURBS surfaces.