International Journal of Industrial Mathematics

ارسال های اخیر

  • Extended ‎A‎artificial Neural Networks Approach and Fractional Volterra ‎I‎ntegro-Differential Equation‎s 

    Jafarian, A.؛ Saneifard, R. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-10-01)
    In current research, an architecture of hybrid arti cial neural networks has been employed to solve a special kind of fuzzy systems. The proposed four-layer fuzzi ed recurrent network can approximate real solution of the ...

  • An ‎A‎lgorithm for Weak Defining Hyperplanes of the PPS in Data Envelopment ‎Analysis 

    Bani, A. A.؛ Rostamy-Malkhalifeh, M.؛ Hosseinzade Lotfi, F. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    Border points of the production possibility set (PPS) have particular importance in data envelopment analysis (DEA). The present study aims to provide a method to find weak defining hyperplanes of DEA models by the anchor ...

  • An Inverse Two-Stage FDH Model in the Presence of Shared Resources 

    Asadi, F.؛ Kordrostami, S.؛ Amirteimoori, AR.؛ Bazrafshan, M. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    In this research, two-stage networks are considered in which there are common resources between both stages. Also, there are links between the first and second stages that are undesirable for the first stage. Two models ...

  • Application of Variational Calculus to Integrability of Differential Equations with Physical Applications 

    Pakdemirli, M. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    Variational calculus is used to determine the integrability of differential equations. A remarkable unified approach is presented by a single theorem employing variational calculus to determine the integrability of any ...

  • A Modification on The Exponential Cubic B-spline for Numerical Simulation of Hyperbolic Telegraph Equations 

    Haghighi, AR.؛ rahimiyan, F.؛ Asghary, N.؛ Roohi, M. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    In this paper the differential quadrature method is implemented to find numerical solution of two and three-dimensional telegraphic equations with Dirichlet and Neumann's boundary values. This technique is according to ...

  • Fuzzy Approach to Solve a Global Mixed Integer Multi-Objective FractionalL Signomial Geometric Programming ‎Problem‎ 

    Shirinnejad, Zh.؛ Saraj, M.؛ Shokrolahi, S.؛ Kiany, F. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    This study proposes a method for solving mixed integer multi-objective fractional signomial geometric programming (MIMOFSGP) problems. A few methods have been applied in the recent past to convert a fractional signomial ...

  • Determining ‎N‎ormalized Crisp Weights From Fuzzy Comparison Matrices Using an Improved Two-Stage Logarithmic Goal Programming Model 

    Mohamadghasemi, A.؛ Hadi-Vencheh, A. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    Two-stage logarithmic goal programming (TLGP) is one of the weighting technologies from fuzzy comparison matrices. But, it only present the interval weights at all alpha–cuts under each criterion when usage of the TLGP. ...

  • $n$-tuple ‎F‎ixed Point Theorems Via $\alpha$-series in $C^*$-algebra-valued Metric Spaces with an Application in Integral Equations 

    Hadi Bonab, S.؛ Parvaneh, V.؛ Hosseinzadeh, H.؛ Aydi, H.؛ Hosseini Ghoncheh, S. J. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    The purpose of this paper is to present some $n$-tuple fixed point and $n$-tuple coincidence point results in $C*$-algebra-valued metric spaces using the concept of an $\alpha$-series applied to a series of mappings. At ...

  • Effects of ‎N‎onstationary and Uncertain Demand on an Inventory System Under Belief Structure Condition 

    Tehranian, O.؛ Mirzazadeh, A.؛ Naderi, B. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2023-07-01)
    This paper presents a new inventory model for deteriorating items, allowable shortages, and stochastic inflationary conditions, considering a belief-rule-base inventory control (BRB-IC) method. This is a new insight in ...

  • Using a Hybrid NSGA-II to ‎S‎olve the ‎R‎edundancy ‎A‎llocation ‎M‎model of Series-Parallel Systems 

    Shahriari, Mohammadreza (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    This paper develops an efficient non-dominated sorting genetic algorithm (NSGA-II) to solve the redundancy allocation problem (RAP) of series-parallel systems. The system consists of subsystem in series, where components ...

  • A Systematic Review of the Combinatorial Methods of Service Composition in the Cloud Computing ‎Environment 

    Karimi, M. B. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    In the latest decade, the concept of service delivery and software-as-a-service have evolved into two important evolution paradigms which have affected the information systems area. A paradigm shift in software development ...

  • Data ‎E‎nvelopment Analysis and Malmquist Index for Measuring Productivity of Inefficient ‎DMUs 

    Shahkooeei‎, M.؛ Rezai Balf, Farzad؛ Rabbani, M.؛ Fallah ‎Jelodar‎, M. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    Data envelopment analysis (DEA), is a non-parametric mathematical programming technique to evaluate the efficiency of a set of homogeneous decision-making units (DMUs), so that DMUs are evaluated into two groups, efficient ...

  • The Effect of Meta-Malmquist Index on Portfolio Optimization 

    Taeb, Z.؛ Banihashemi, SH. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    Since the change of conditional value at risk (CVaR) in different confidence levels is very effective in portfolio optimization, the meta-Malmquist index (MMI) is utilized. For this purpose, mean-CVaR models by MMI in the ...

  • Efficiency Frontier Ideal Distance Evaluation in Presence of Integer-Values in DEA by Directional Distance Function Approach 

    Farhadi, P.؛ Rostamy Malkhalifeh, M.؛ Kazemimatin, R. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    In conventional DEA methods, all inputs and outputs are assumed to be continuous. However, the implied presumption of continuous data may not maintain an acceptable level of precision in practical data. Many practical ...

  • Benchmarking Automotive After-sales Service Companies with Dependent Criteria-Application of Data Envelopment ‎Analysis 

    kheyri, S.؛ Hosseinzadeh Lotfi, F.؛ Najafi, S. E.؛ Rahmani Parchikolaei, B. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    Benchmarking is a tool for evaluating organizational performance with a learning approach from others. The importance of benchmarking in every industry is clear for anyone. In the automotive industry, the performance of ...

  • Validation of a Polytropic-Based Blow by Model and Predicting Crevice Flow Cyclic Variations in a CNG SI ‎Engine‎ 

    Abdi Aghdam, E. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    In the present work, first a Polytropic-Based Blowby Model (PBBM) was validated using a Thermodynamic Simulation Code (TSC). Then, using the results extracted from a single-cylinder SI research engine, the P- of an Ensemble ...

  • On the Modified Block-Pulse Function for Volterra Integral Equation of The First ‎Kind‎ 

    Mohammadi, M.؛ Vahidi, A. R.؛ Damercheli, T.؛ Khezerloo, S.؛ Nouri, M. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-09-01)
    In this paper, we consider Volterra integral equations of the first kind. Then by extending the modified Block-pulse functions(MBPFs) on the Volterra integral equation of the second kind obtained from Volterra integral ...

  • A Multi-Objective Green Supply Chain: Multi-Product Model Considering Uncertainty 

    Khodadadian, D.؛ Radfar, R.؛ Tolooei Eshlaghi‎, A. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-07-01)
    The purpose of this research is to provide a mathematical model for designing the purchase, production, and distribution in a multi-level and multi-product supply chain network such that the environmental impact and total ...

  • An Improvement on Collocation Algorithm to Solve Initial Value Problems 

    Nikarya, M.؛ Sarabadan, S. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-07-01)
    In this paper an improved version of the collocation method is proposed to solve ordinary differential equations with initial conditions. Our proposed algorithm is described by applying it to some well-known IVPs. The ...

  • Provide a New Model for Evaluating and Ranking DMUs With ‎O‎rdinal Data 

    PourmahmoUd, J.؛ Norouzi, D. (Science and Research Branch, Islamic Azad University, Tehran, Iran Website: ijim.srbiau.ac.ir Address: Science and Research Branch, Shohada Hesarak Blvd, Daneshgah Square, Sattari Highway, Tehran, Iran. Email: ijim@srbiau.ac.ir Tel:+98(44)32352053, +98(914)3897371. Fax:+98(44)32722660دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران, 2022-07-01)
    Classic Data Envelopment Analysis assumes that the values of inputs and outputs are exactly determined. However, in most real-life problems, the exact values of some of the inputs and outputs are imprecise. One of such ...

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