Volume 3, Issue 4

 

ارسال های اخیر

  • The trim loss concentration in one-dimensional cutting stock problem (1D-CSP) by defining a virtual cost 

    Javanshir, H؛ Shadalooee, M (Islamic Azad University, South Tehran Branch, 2007-04-01)
    Nowadays, One-Dimensional Cutting Stock Problem (1D-CSP) is used in many industrial processes and re-cently has been considered as one of the most important research topic. In this paper, a metaheuristic algo-rithm based ...

  • Two optimal algorithms for finding bi-directional shortest path design problem in a block layout 

    Hamzeei, M؛ Zanjirani Farahani, R (Islamic Azad University, South Tehran Branch, 2007-04-01)
    In this paper, Shortest Path Design Problem (SPDP) in which the path is incident to all cells is considered. The bi-directional path is one of the known types of configuration of networks for Automated Guided Vehi-cles ...

  • Advanced operations research techniques for multi-constraint QoS routing in internet 

    Arunkumar, HK؛ Sivakumar, S (Islamic Azad University, South Tehran Branch, 2007-04-01)
    Internet Traffic has grown exponentially over last few years due to provision of multiple class services through Internet backbone. With the explosive use of Internet, contemporary Internet routers are susceptible to ...

  • Multi-start simulated annealing for dynamic plant layout problem 

    Ashtiani, B؛ Aryanezhad, M.B؛ Farhang Moghaddam, B (Islamic Azad University, South Tehran Branch, 2007-04-01)
    In today's dynamic market, organizations must be adaptive to market fluctuations. In addition, studies show that material-handling cost makes up between 20 and 50 percent of the total operating cost. Therefore, this paper ...

  • On the multivariate variation control chart 

    Noorossana, R؛ Seyedaliakbar, S.M (Islamic Azad University, South Tehran Branch, 2007-04-01)
    Multivariate control charts such as Hotelling`s T^ 2 and X^ 2 are commonly used for monitoring several related quality characteristics. These control charts use correlation structure that exists between quality characteristics ...

  • A new approach to determine efficient DMUs in DEA models using inverse optimization 

    Amin, GH.R (Islamic Azad University, South Tehran Branch, 2007-04-01)
    This paper proposes a new approach for determining efficient DMUs in DEA models using inverse optimi-zation and without solving any LPs. It is shown that how a two-phase algorithm can be applied to detect effi-cient DMUs. ...

  • Evaluating quantitative stock selection strategies in Tehran Stock Exchange 

    Kimiagari, A.M؛ Amini, S (Islamic Azad University, South Tehran Branch, 2007-04-01)
    There are different strategies for selecting stocks, and different investors use different strategies according to their risk tolerance or their expected rate of return. In this study, the profitability of a broad range ...

  • An optimization technique for vendor selection with quantity discounts using Genetic Algorithm 

    Arunkumar, N؛ Karunamoorthy, L؛ Uma Makeshwaraa, N (Islamic Azad University, South Tehran Branch, 2007-04-01)
    Vendor selection decisions are complicated by the fact that various conflicting multi-objective factors must be considered in the decision making process. The problem of vendor selection becomes still more compli-cated ...