**Volume 55 (2023)**

**Volume 54 (2022)**

**Volume 53 (2021)**

**Volume 52 (2020)**

**Volume 51 (2019)**

**Volume 50 (2018)**

**Volume 49 (2017)**

**Volume 48 (2016)**

**Volume 47 (2016)**

**Volume 46 (2015)**

**Volume 45 (2014)**

**Volume 44 (2013)**

**Volume 43 (2009)**

**Volume 42 (2008)**

**Volume 41 (2007)**

Number of Articles: 447

##### تحلیل سهبعدی اکستروژن مستقیم با روش قاچی و المان محدود

*Volume 43, Issue 4 , September 2009, , Pages 527-535*

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**Abstract **

Slab method of analysis has been used for solving metal forming problems for a long time. However it has been restricted to plane strain and axisymmetric problems due to limitations in its formulations. In this paper a new formulation has been proposed so that it could be applied to three dimensional ...
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##### کنترل بهینة شار حرارتی سطحی در یک جسم دوبعدی با خواص وابسته به دما

*Volume 43, Issue 4 , September 2009, , Pages 537-545*

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**Abstract **

In this paper the optimal control of boundary heat flux in a 2-D solid body with an arbitrary shape is performed in order to achieve the desired temperature distribution at a given time interval. The boundary of the body is subdivided into a number of components. On each component a time-dependent heat ...
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##### تحلیل تنش ناشی از FOD روی یک پره توربین گاز از جنس سوپرآلیاژ پایه نیکل

*Volume 43, Issue 4 , September 2009, , Pages 547-554*

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**Abstract **

Foreign object damage (FOD) occurs when hard, millimeter-sized objects such as gravel or sand and even the pieces of the engine components are ingested into aircraft jet engines. Particles impacting blades produce small indentation craters which can become sites for fatigue crack initiation, severely ...
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##### کنترل مسیر خودکار میکرو زیردریایی 3 درجه آزادی با الهام از حرکت کوسهماهی

*Volume 43, Issue 4 , September 2009, , Pages 555-565*

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**Abstract **

An autonomous underwater vehicle (AUV) with less noise and vortices as well as efficient power consumption, is pursued in this research by inspiration of shark swimming. Design, hydrodynamic analysis, modeling, fabrication, navigation, and control of this novel AUV is the main goal of this research. ...
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##### تحلیل استاتیکی ورقهای چندلایه کامپوزیتی با لایههای پیزوالکتریک

*Volume 43, Issue 4 , September 2009, , Pages 566-582*

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**Abstract **

The Levy-type analytical solution is employed for the problem of bending of cross-ply and antisymmetric angle-ply piezoelectric hybrid laminated plates with at least two simply supported opposite edges. The governing equations of equilibrium are derived in the framework of the first-order shear deformation ...
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##### شبیهسازی المان محدود فرایند برش متعامد و تعیین ضخامت لایه چسبنده به ابزار در ناحیه دوم برش

*Volume 43, Issue 4 , September 2009, , Pages 583-595*

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**Abstract **

The built up layer thickness in secondary deformation zone is one of the important parameters in metal cutting process. The built up layer (BUL) is formed in second deformation zone near the tool-chip interface in the back of the chip. This parameter influences the tool life and machined surface quality. ...
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##### A variant of van Hoeij's algorithm to compute hypergeometric term solutions of holonomic recurrence equations

*Volume 53, Issue 2 , December 2021, , Pages 1-32*

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**Abstract **

Linear and homogeneous recurrence equations having polynomial coefficients are said to be holonomic. These equations are useful for proving and discovering combinatorial and hypergeometric identities. Given a field $\mathbb{K}$ of characteristic zero, $a_n$ is a hypergeometric term with respect to $\mathbb{K}$, ...
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##### A variant of van Hoeij's algorithm to compute hypergeometric term solutions of holonomic recurrence equations

*Articles in Press, Accepted Manuscript, Available Online from 13 January 2022*

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**Abstract **

Linear and homogeneous recurrence equations having polynomial coefficients are said to be holonomic. These equations are useful for proving and discovering combinatorial and hypergeometric identities. Given a field $\mathbb{K}$ of characteristic zero, $a_n$ is a hypergeometric term with respect to $\mathbb{K}$, ...
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##### Overlapping Clusters in Cluster Convolutional Networks

*Articles in Press, Accepted Manuscript, Available Online from 13 January 2022*

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**Abstract **

A popular research topic in Graph Convolutional Networks (GCNs) is to speedup the training time of the network. The main bottleneck in training GCN is the exponentially growing of computations. In Cluster-GCN based on this fact that each node and its neighbors are usually grouped ...
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##### Pair difference cordial labeling of planar grid and mongolian tent

*Articles in Press, Accepted Manuscript, Available Online from 13 January 2022*

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**Abstract **

\noindent Let $G = (V, E)$ be a $(p,q)$ graph.\\Define \begin{equation*}\rho =\begin{cases}\frac{p}{2} ,& \text{if $p$ is even}\\\frac{p-1}{2} ,& \text{if $p$ is odd}\\\end{cases}\end{equation*}\\ and $L = \{\pm1 ,\pm2, \pm3 , \cdots ,\pm\rho\}$ called the set of labels.\\\noindent ...
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##### A comparison between the resolution and linear optimization of FREs defined by product t-norm and geometric mean operator

*Articles in Press, Accepted Manuscript, Available Online from 14 January 2022*

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**Abstract **

In this paper, a type of fuzzy system is firstly investigated whereby the feasible region is defined by the fuzzy relational equalities and the geometric mean as fuzzy composition. Some related basic and theoretical properties are derived and the feasible region is completely determined. Moreover, a ...
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##### On the J-Tightness of Graphs

*Articles in Press, Accepted Manuscript, Available Online from 14 January 2022*

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**Abstract **

We introduce a new invariant vulnerability parameter named “J-Tightness” or “J(G)” for graphs. As a stability measure, its properties along with comparisons to other parameters of a graph are proposed. We show how it is calculated for complete graphs and cycles. We show that J-Tightness ...
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##### A fast algorithm for the linear programming problem constrained with the Weighted power mean -- Fuzzy Relational Equalities (WPM-FRE)

*Articles in Press, Accepted Manuscript, Available Online from 14 January 2022*

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**Abstract **

In this paper, a linear programming problem is investigated in which the feasible region is formed as a special type of fuzzy relational equalities (FRE). In this type of FRE, fuzzy composition is considered as the weighted power mean operator (WPM). Some theoretical properties of the feasible region ...
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##### Fuzzy Cumulative Distribution Function \and its Properties

*Articles in Press, Accepted Manuscript, Available Online from 14 January 2022*

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**Abstract **

The statistical methods based on cumulative distribution function is a start point for many parametric or nonparametric statistical inferences. However, there are many practical problems that require dealing with observations/parameters that represent inherently imprecise. However, Hesamian ...
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##### An algorithm to Solve the Linear Programming Problem Constrained with the Harmonic–Fuzzy Relational Equalities

*Articles in Press, Accepted Manuscript, Available Online from 15 January 2022*

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**Abstract **

In this paper, a linear programming problem is investigated in which the feasible region is formed as the intersection of fuzzy relational equalities and the harmonic mean operator is considered as fuzzy composition. Theoretical properties of the feasible region are derived. It is proved that the feasible ...
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##### Plane Bounded-Degree Spanners Among the Obstacles for the Points in Convex Position

*Articles in Press, Accepted Manuscript, Available Online from 15 January 2022*

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**Abstract **

Let $S$ be a set of points in the plane that are in convex position. Let~$\cal O$ be a set of simple polygonal obstacles whose vertices are in $S$. The visibility graph $Vis(S,{\cal O})$ is the graph which is obtained from the complete graph of $S$ by removing all edges intersecting some obstacle ...
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##### Effective Tamper Detection and Recovery of Images after Serious Attacks

*Articles in Press, Accepted Manuscript, Available Online from 15 January 2022*

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**Abstract **

Confirming the integrity of transmitted sensitive digital content is a significant issue due to the evolution in communication technologies and the accessibility of image processing tools. Watermarking has been a successful method of authentication and integrity verification recently. However, several ...
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##### On the resolution of LP-FRE defined by the convex combination operator

*Articles in Press, Accepted Manuscript, Available Online from 15 January 2022*

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**Abstract **

In this paper, a linear programming problem is investigated in which the feasible region is formed as a special type of fuzzy relational equalities (FRE). In this type of FRE, fuzzy composition is considered as the convex combination operator. It is proved that the feasible region of the problem can ...
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##### Priority-Oriented Task Scheduling based on Harris Hawks Optimizer for Cloud Computing

*Articles in Press, Accepted Manuscript, Available Online from 15 January 2022*

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**Abstract **

Cloud computing is a high-performance computing environment that can remotely provide services to customers using a pay-per-use model. The principal challenge in cloud computing is task scheduling, in which tasks must be effectively allocated to resources. The mapping of cloud resources to customer ...
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##### A Systematic Way for Selecting Suitable Journal for Publishing Manuscripts

*Articles in Press, Accepted Manuscript, Available Online from 16 January 2022*

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**Abstract **

\noindent Selecting suitable journals for publishing manuscripts for publication is one of the most essential processes before publishing any manuscript. Finding the relevant journal is a key factor which proves one's work valuable to the entire society. The final output and the performance of one's ...
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##### $P_3$-Rainbow Edge Colouring of Digraphs

*Articles in Press, Accepted Manuscript, Available Online from 16 January 2022*

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**Abstract **

An edge coloring of a digraph $D$ is called a $P_3$-rainbow edge coloring if the edges of any directed path of $D$ with length 2 are colored with different colors. It is proved that for a $P_3$-rainbow edge coloring of a digraph $D$, at least $\left\lceil{log_2{\chi(D)}} ...
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##### Negative Cost Girth Problem using Map-Reduce Framework

*Articles in Press, Accepted Manuscript, Available Online from 16 January 2022*

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**Abstract **

On a graph with a negative cost cycle, the shortest path is undefined, but the number of edges of the shortest negative cost cycle could be computed. It is called Negative Cost Girth (NCG). The NCG problem is applied in many optimization issues such as scheduling and model verification. The existing ...
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##### Some new results on the number of fair dominating sets

*Volume 54, Issue 2 , December 2022, , Pages 1-12*

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**Abstract **

Let $G=(V, E)$ be a simple graph. A dominating set of $G$ is a subset $D\subseteq V$ such that every vertex not in $D$ is adjacent to at least one vertex in $D$.
The cardinality of the smallest dominating set of $G$, denoted by $\gamma(G)$, is the domination number of $G$. For $k \geq 1$, a $k$-fair ...
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##### Perfectionism Search Algorithm (PSA): An Efficient Meta-Heuristic Optimization Approach

*Volume 55, Issue 1 , June 2023, , Pages 11-36*

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**Abstract **

This paper proposes a novel population-based meta-heuristic optimization algorithm, called Perfectionism SearchAlgorithm (PSA), which is based on the psychological aspects of perfectionism. The PSA algorithm takes inspiration from one of the most popular model of perfectionism, which was proposed by ...
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##### Linear optimization constrained by fuzzy inequalities defined by Max-Min averaging operator

*Volume 52, Issue 2 , December 2020, , Pages 13-28*