Volume 13, Issue 1
مرور بر اساس
ارسال های اخیر

Cost Evaluation of a TwoEchelon Inventory System with Lost Sales and Approximately Normal Demand
(Sharif University of Technology, 20060101)The inventory system under consideration consists of one central warehouse and an arbitrary number of retailers controlled by a continuous review inventory policy (R,Q). Independent Poisson demands are assumed with constant ...

A Minimum Route for Machine Tool Travel
(Sharif University of Technology, 20060101)This paper presents an algorithmic approach to solving the problem of excessive travel in C.N.C. machine tools, by introducing an efficient method to compute the shortest path between given sets of points (origin and ...

Ranking Analysis and Modeling of State Run Universities
(Sharif University of Technology, 20060101)State evaluation of universities is important for administrators to serve as a basis for performance monitoring, policy formulations and distribution of funds. In this paper, a formal methodology was proposed to build a ...

Designing an Infinite Channel Server
(Sharif University of Technology, 20060101)In this paper, the designing of a parallel channel queuing system is considered in which it is desirable to serve the customers immediately upon their arrival. To design such a service facility, the first and the second ...

Performance Analysis of TimeHopping UltraWideband Systems in Multipath Fading Channels (Uncoded and Coded Schemes)
(Sharif University of Technology, 20060101)In this paper, the performances of both uncoded and coded multiple access THUWB systems, introduced in [13] in multipath Rayleigh fading channels, are evaluated. The receiver is a selective diversity combining receiver, ...

Optimizing MultiResponse Statistical Problems Using a Genetic Algorithm
(Sharif University of Technology, 20060101)In this paper, two methods to solve multiresponse statistical problems are presented. In these methods, desirability function, genetic algorithm and simulation methodology are applied. The desirability function is responsible ...

A Fuzzy Coherent Hierarchical LocationAllocation Model for Congested Systems
(Sharif University of Technology, 20060101)A fuzzy queuing coherent hierarchical locationallocation model is developed for congested systems. The parameters of the model are approximately evaluated and stated as fuzzynumbers. The coverage of demand nodes is also ...

Unified MultipleAccess Performance Analysis of Several Multirate Multicarrier SpreadSpectrum Systems
(Sharif University of Technology, 20060101)A unified multipleaccess performance analysis and comparison of three multicarrier spreadspectrum multipleaccess schemes, namely, MC CDMA (Multicarrier CodeDivision MultipleAccess), MCFH (Multicarrier Frequency ...

A Heuristic Approach Based on Tabu Search for Early/Tardy Flexible Job Shop Problems
(Sharif University of Technology, 20060101)This paper addresses minimizing Total Weighted Earliness/Tardiness(TWET) of jobs in a Flexible Job Shop (FJS) problem. The FJS problem is an extension of the classical Job Shop (JS) problem that implies each operation may ...

Design and Simulation of an Oblique Suspender MEMS Variable Capacitor
(Sharif University of Technology, 20060101)This paper presents the results on the development of a novel micromachined parallel plate tunable capacitor with a wide tuning range. Different from conventional parallel plate capacitors, this novel tunable capacitor ...

Shortest Paths with SinglePoint Visibility Constraint
(Sharif University of Technology, 20060101)In this paper, the problem of finding the shortest path between two points in the presence of singlepoint visibility constraints is studied. In these types of constraint, there should be at least one point on the output ...