مرور Volume 3, 2 (SPRING) بر اساس تاریخ انتشار

در حال نمایش موارد 1 - 6 از 6

  • ON THE STABILITY AND THRESHOLD ANALYSIS OF AN EPIDEMIC MODEL 

    Abdullahi Yau, Muhammad (Islamic Azad University, Central tehran Branch, 2013-01-01)
    We consider a mathematical model of epidemic spread  in which the  population  is partitioned  into five compartments of susceptible S(t), Infected I(t), Removed R(t), Prevented U(t) and the Controlled W(t). We assume each ...

  • IMPROVING THE SELECTION SYMMETRIC WEIGHTS AS A SECONDARY GOAL IN DEA CROSS-EFFICIENCY EVALUATION 

    Tohidi, Ghasem؛ Khodadadi, Maryam؛ Rostamiyan, Elham (Islamic Azad University, Central tehran Branch, 2013-01-01)
    Recently, some authors proposed the use of symmetric weightsfor computing the elements of cross-efficiency matrix. In spite ofthe fact that the proposed method decreases the ...

  • A NEW APPROACH TO SOLVE DIFFERENTIAL EQUATIONS ARISING IN FLUID MECHANICS 

    Towsyfyan, Hossein (Islamic Azad University, Central tehran Branch, 2013-01-01)
    The purpose of this study is to demonstrate the potential of Imperialist CompetitiveAlgorithm (ICA) for solving Blasius dierential equation. This algorithm is inspiredby competition mechanism among Imperialists and colonies ...

  • THE ELZAKI HOMOTOPY PERTURBATION METHOD FOR PARTIAL DIFFERENTIAL EQUATIONS 

    Matinfar, M.؛ Ghasemi, M. (Islamic Azad University, Central tehran Branch, 2013-01-01)
    In this paper, Elzaki Homotopy Perturbation Method is employed for solving linear and nonlinear differential equations with a variable coffecient. This method is a combination of Elzaki transform and Homotopy Perturbation ...

  • FUZZY K-NEAREST NEIGHBOR METHOD TO CLASSIFY DATA IN A CLOSED AREA 

    Sajadi, Saba؛ Amirfakhrian, Majid (Islamic Azad University, Central tehran Branch, 2013-01-01)
    Clustering of objects is an important area of research and application in variety of fields. In this paper we present a good technique for data clustering and application of this Technique for data clustering in a closed ...

  • DISCRETE-TIME GI/D-MSP/1/K QUEUE WITH N THRESHOLD POLICY 

    Goswami, Veena؛ Vijaya Laxmi, P. (Islamic Azad University, Central tehran Branch, 2013-01-01)
    This paper presents a discrete-time single-server finite buffer N threshold policy queue with renewal input and discreteMarkovian service process. The server terminates service whenever the system becomes empty, and ...