Volume 13 (2021)
Volume 12 (2020)
Volume 11 (2019)
Volume 10 (2018)
Volume 9 (2017)
Volume 8 (2016)
Volume 7 (2015)
Volume 6 (2014)
Volume 5 (2013)
Volume 4 (2012)
Volume 3 (2011)
Volume 2 (2010)
Volume 1 (2009)
Mathematical Engineering
1. Lump solutions of Biharmonic equation

Azadeh Badiepour; Zainab Ayati; Hamideh Ebrahimi

Volume 12, Issue 2 , Autumn 2020

  In this article, through symbolic computation With Maple, we get the solution of the (1 + 1)-dimensional Biharmonic-equation. These solutions, which we call lump solution, obtained using square functions, are rationally localized in all directions in the space. It should be noted that not all nonlinear ...  Read More

linear Programming
2. Continuous Energy Values of 3-Amino-4-Nitraminofurazan Molecule by Modern Optimization Techniques

Ahmet Sahiner; Fatih Ucun; Sumeyya Koman

Volume 9, Issue 2 , Autumn 2017, , Pages 69-77

  The conformational energy values of 3-amino-4-nitraminofurazan (C2N4O3H2) molecule changing with two torsion angles were firstly calculated using density functional theory (DFT) with Lee-Young-Parr correlation functional and 6-31 G(d) basis set on Gaussian Program. And then, these obtained discrete data ...  Read More

Mathematical Engineering
3. Risk Assessment of Investments with Fuzzy Efficiency Indicators for Oil and Gas Production Industry

Ali Zebardast; Kiumars Shahbazi; Amir Amini

Volume 8, Issue 1 , Spring 2016, , Pages 1-7

  In the process of investment decision making, next to financial indicators many other aspects of investment projects are increasingly often considered. This leads to the multi-criteria evaluation of a project. The advantage of multi-criteria methods is the ability to take into account all (not only financial) ...  Read More

Numerical Analysis
4. A method to obtain the best uniform polynomial approximation for the family of rational function

M. A. Fariborzi Araghi; F. Froozanfar

Volume 7, Issue 1 , Spring 2015, , Pages 753-766

  In this article, by using Chebyshev’s polynomials and Chebyshev’s expansion, we obtain the best uniform polynomial approximation out of P2n to a class of rational functions of the form (ax2+c)-1 on any non symmetric interval [d,e]. Using the obtained approximation, we provide the best ...  Read More

Mathematical Engineering
5. Unweighted p-center problem on extended stars

Jafar Fathali; Nader Jafari Rad; Sadegh Rahimi Sherbaf

Volume 6, Issue 2 , Summer 2014, , Pages 737-744

  An extended star is a tree which has only one vertex with degree larger than two. The -center problem in a graph  asks to find a subset  of the vertices of  of cardinality  such that the maximum weighted distances from  to all vertices is minimized. In this paper we consider ...  Read More

Numerical Analysis
6. Application of G'/G-expansion method to the (2+1)-dimensional dispersive long wave equation

Jafar Biazar; Zainab Ayati

Volume 6, Issue 2 , Summer 2014, , Pages 745-752

  In this work G'/G-expansion method has been employed to solve (2+1)-dimensional dispersive long wave equation. It is shown that G'/G-expansion method, with the help of symbolic computation, provides a very effective and powerful mathematical tool, for solving this equation.  Read More