نتایج جستجو برای: objective resource constrained project scheduling model we consider the objectives of robustness maximization along with makespan minimization then
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Given a fixed budget, the generic relocation problem seeks to determine a feasible reconstruction sequence of old buildings for a public housing project. The feasibility issue can be resolved because it is mathematically equivalent to makespan minimization in a two-machine flowshop. In this paper, we consider the variant where multiple working crews are available for the redevelopment project. ...
in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...
An Evolutionary algorithm for resource constrained project scheduling (RCPS) problem is proposed with the objective to minimize project duration (makespan). The algorithm is tested with standard data sets given by Kolisch library for J30 and J60 and found to be performing well. General Terms Project Scheduling, Resources.
The resource-constrained project scheduling problem (RCPSP) consists of activities that must be scheduled subject to precedence and resource constraints such that the makespan is minimized. It has become a well-known standard problem in the context of project scheduling which has attracted numerous researchers who developed both exact and heuristic scheduling procedures. However, it is a rather...
Project scheduling Net present value We consider a project scheduling problem with permitted tardiness and discrete time/resource trade-offs under maximum net present value objective. In this problem, a project consists of a set of sequential phases such that each phase contains one or more sub-projects including activities interrelated by finish-start-type precedence relations with a t...
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...
We consider some special cases of the NP -hard resource-constrained project scheduling problem (RCPSP ) to minimize the makespan. We conjecture that the ratio of the optimal makespan of RCPSP to that of the preemptive version of the problem is less than 2. We show that a well-known lower bounds for the problem may yield bad approximation ratios or its calculation is an NP -hard problem too. We ...
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
due to the importance of supplier selection issue in supply chain management (scm) and ,also, the increasing tendency of organizations to their social responsibilities, in this paper, we survey the supplier selection issue as a multi objective problem while considering the factor of corporate social responsibility (csr) as a mathematical parameter. the purpose of this paper is to design a mode...
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