Volume 12, Issue 3

 

ارسال های اخیر

  • Mathematical Model for Transmission Dynamics of Typhoid Fever With Optimal Control ‎Strategies‎ 

    Wameko, Mamo؛ Koya, Purnachandra؛ Wodajo, Alemu (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, 2020-05-01)
    In this study, a deterministic mathematical model was used to investigate the dynamics of typhoid disease by using different optimal control strategies. The qualitative behavior of the control profile revealed that prevention ...

  • Undesirable Factors and Improvement of Efficiency in Data Envelopment Analysis 

    Eyni, M.؛ Khodadadi, 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, 2020-05-01)
    we discuss about the determination of the output levels of a decision-making units with the preference of cone constraints when some of the outputs are undesirable. The output levels of a DMU is estimated when some or all ...

  • Improved Neural Network and the Pontryagin's minimum Principle for Solve Fuzzy Optimal Control ‎Problems‎ 

    Askari, S.؛ Abbasbandy, 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, 2020-05-01)
    In this paper, a novel and practical approach are proposed to solve the fuzzy optimal control (FOC) using an improved multi-layer perceptron (IMLP) network along with the Pontryagin minimum principle (PMP). Here, it is ...

  • Contrast of Homotopy and Adomian Decomposition Methods with Mittage-Leffler ‎F‎unction for Solving Some Nonlinear Fractional Partial Differential ‎Equations‎ 

    Jahanshahi, M.؛ Kazemi demneh, H. (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, 2020-05-01)
    ‎In this paper‎, ‎a class of nonlinear fractional partial differential equation is considerd and solved by advanced analytical-numerical methods such as homotopy analytical and Adomian decomposition Methods and Mittag-Leffler ...

  • Design of A No-chatter Fractional Sliding Mode Control Approach for Stabilization of Non-Integer Chaotic ‎Systems‎ 

    Ziaratban, R.؛ Haghighi, A. R.؛ Reihani, P. (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, 2020-05-01)
    A nonlinear chattering-free sliding mode control method is designed to stabilize fractional chaotic systems with model uncertainties and external disturbances. The main feature of this controller is rapid convergence to ...

  • A Direct Method For Solving ‎L‎inear Delay Differential Equations‎ 

    Zeynal, E.؛ Babolian, E.؛ Damercheli, T. (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, 2020-05-01)
    In this paper, we propose direct methods to solve linear delay differential equations (DDEs) based on vector forms of Block-Pulse Functions (BPFs) and Triangular Functions (TFs). Operational matrix of integration of BPFs ...

  • A Limited Version of Crout Decomposition Method for Solving of Fuzzy Complex Linear ‎Systems 

    Ghanbari, 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, 2020-05-01)
    In this paper, it is shown that ‎the solution vector obtained by the classic Crout decomposition method is not an algebraic solution of a fuzzy complex linear system‎. Here‎, ‎we propose a limited version of the mentioned ...

  • A Novel Transformation ‎M‎ethod for Solving Complex Interval Matrix‎ 

    Babakordi, 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, 2020-05-01)
    ]n this paper interval complex matrix system as [W][Z]=[K] in which [W],[K] are n×n known interval complex matrices and [Z] is n×n unknown interval complex matrix is studied. Using operations on interval complex numbers ...

  • Stochastic Two-stage Network-structures Under P-models: A DEA Based Approach 

    Mehdizadeh, S.؛ Amirteimoori, A. R.؛ Behzadi, M. H.؛ Kordrostami, 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, 2020-05-01)
    Regular NDEA models for calculating the efficiency of DMUs with two-stage construction requires the data set to be deterministic. In the real world, however, there are many observations that have stochastic behavior. This ...

  • New Results on Ideals in $MV$-‎algebras‎ 

    Saidi Goraghani, S.؛ Borzooei, R. 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, 2020-05-01)
    In the present paper, by considering the notion of ideals in $MV$-algebras, we study some kinds of ideals in $MV$-algebras and obtain some results on them. For example, we present definition of ultra ideal in $MV$-algebras, ...