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)

ارائه روشی سریع برای حذف اثر هوآویزها از تصاویر ماهواره‌ای MODIS

Yusef Reazaee; Mohammad Reza Mobasheri

Volume 42, Issue 3 , July 2008, , Pages 301-311


  Due to the effect of aerosols present in the atmosphere on the satellite images, the study of the effect of local aerosols distribution on the satellite images is important. On the other hand, the study shows that the effect of aerosols on the greenhouse gases and consequently on climate is also undeniable ...  Read More

مدل‌سازی روابط توپولوژیک سه بعدی فازی در محیط GIS

Roozbeh Shad; Mohammad Sa'di Mesgari

Volume 43, Issue 4 , September 2009, , Pages 405-416


  Nowadays, geospatial information systems (GIS) are widely used to solve different spatial problems based on various types of fundamental data: spatial, temporal, attribute and topological relations. Topological relations are the most important part of GIS which distinguish it from the other kinds of ...  Read More

ارائة مدل اولویت‌بندی علت‌گرا جهت تعیین قطعات خطرناک جاده‌ها برای عابرین پیاده

Mahmoud Saffarzadeh; Vahid Abolhassan Nejad; Amin Mirza Boroujerdian

Volume 42, Issue 4 , August 2008, , Pages 457-467


  One of the most important and effective factors in prioritizing high accident prone segments of roads for pedestrians is accident cause which up to now has been neglected in current methods. Since accidents are not additives due to various reasons, prioritizing these segments without considering the ...  Read More

طراحی سیستم کنترل ABS با در نظر گرفتن کنترل حرکت کناری به روش ترکیبی PID و SMC

Reza Kazemi; Seyyed Esma'eel Mahmoudi Larimi

Volume 41, Issue 4 , November 2007, , Pages 499-510


  Control Systems such as Anti Lock Brake Systems (ABS) and Traction Control Systems (TCS) are vastly used in most vehicles as to enhance the safety of the systems. These systems have many virtues on controlling the dynamics of vehicles, but they only control the longitudinal dynamics of the vehicle directly ...  Read More

مطالعات ساختاری- اقتصادی طرح ارتقای سیستم انتقال 63 کیلوولت دو مداره سراوان – سوران به سطح 230 کیلوولت

Mohammad Tavakkoli Bina; Mehdi Sirjani; Danyal Ahmadi

Volume 43, Issue 5 , September 2009, , Pages 597-609


  Upgrading the voltage level of a transmission line is named as one solution to increase the transmitted power. This paper introduces the results of a research project in which the upgrade of Saravan-Sooran double circuit transmission system from 63 kV to 230 kV is studied. In this context, the towers ...  Read More

ارتقای کیفیت دسته‌بندی متون با استفاده از کمیته‌ دسته‌بند دو سطحی

Sa'eed Jalili; Ali Akbar Sadri

Volume 41, Issue 5 , December 2007, , Pages 597-614


  Nowadays, the automated text classification has witnessed special importance due to the increasing availability of documents in digital form and ensuing need to organize them. Although this problem is in the Information Retrieval (IR) field, the dominant approach is based on machine learning techniques. ...  Read More

بررسی پایداری لرزه‌ای سد‌های باطله مطالعه موردی سد سرچشمه

Paria Afsharchi; Ali Asghar Mirghasemi

Volume 42, Issue 6 , December 2008, , Pages 657-667


  Tailings dams, due to methods and materials used in their construction are vulnerable structures to earthquake. In many cases storage of water over tailings is required to prevent aerial pollution or reduction in water consumption by the means of a recycling system, therefore failure of these kinds of ...  Read More

تولید خودکار الگوهای نفوذ جدید با استفاده از طبقه‌بندهای تک کلاسی و روش‌های یادگیری استقرایی

Mehdi Abadi; Sa'eed Jalili

Volume 42, Issue 7 , January 2009, , Pages 823-829


  In this paper, we propose an approach for automatic generation of novel intrusion signatures. This approach can be used in the signature-based Network Intrusion Detection Systems (NIDSs) and for the automation of the process of intrusion detection in these systems. In the proposed approach, first, by ...  Read More

Fr{\'e}chet and Hausdorff Queries on $x$-Monotone Trajectories

Zeinab Saeidi; Mohammad Farshi

Volume 51, Issue 2 , December 2019, , Pages 9-17


  \vspace{0.2cm}In this paper, we design a data structure for the following problem. Let $\pi$ be an $x$-monotone trajectory with $n$ vertices in the plane and $\epsilon >0$. We show how to preprocess $\pi$ and $\epsilon$ into a data structure such that for any horizontal query segment $Q$ in the plane, ...  Read More

تحلیل و بهینه‌سازی سازه‌های ساندویچی با هسته سینوسی

Mohammad Kazem Besharati Givi; Mehdi Ghasemi; Seyyed Mahmoud Mousavi Mashhadi

Volume 43, Issue 1 , April 2009, , Pages 11-20


  In this paper a special sandwich panel with a sinusoidal core under distributed load on upper and lower plates has been studied. By drawing free body diagrams, and using energy method and Castagiliano theory the forces and moments involved in the core has been determined. Then, the stresses, normal and ...  Read More

A comparison between the resolution and linear optimization of FREs defined by product t-norm and geometric mean operator

Amin Ghodousian; Sara Falahatkar

Volume 54, Issue 1 , June 2022, , Pages 11-22


  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 of such fuzzy relational equations are derived and the feasible region is ...  Read More

Three Graceful Operations

Sarah Minion; Christian Barrientos

Volume 45, Issue 1 , December 2014, , Pages 13-24


  A graph of size n is said to be graceful when is possible toassign distinct integers from {0, 1, . . . , n} to its verticesand {|f(u)−f(v)| : uv ∈ E(G)} consists of n integers. Inthis paper we present broader families of graceful graphs; these families are obtained via three different operations: ...  Read More

Super Pair Sum Labeling of Graphs

R. Vasuki; S. Arockiaraj; P. Sugirtha

Volume 49, Issue 2 , December 2017, , Pages 13-22


  Let $G$ be a graph with $p$ vertices and $q$ edges. The graph $G$ is said to be a super pair sum labeling if there exists a bijection $f$ from $V(G)\cup E(G)$ to $\{0, \pm 1, \pm2, \dots, \pm (\frac{p+q-1}{2})\}$ when $p+q$ is odd and from $V(G)\cup E(G)$ to $\{\pm 1, \pm 2, \dots, \pm (\frac{p+q}{2})\}$ ...  Read More

Linear programming on SS-fuzzy inequality constrained problems

Amin Ghodousian; shahrzad oveisi

Volume 50, issue 2 , December 2018, , Pages 13-36


  In this paper, a linear optimization problem is investigated whose constraints are defined with fuzzy relational inequality. These constraints are formed as the intersection of two inequality fuzzy systems and Schweizer-Sklar family of t-norms. Schweizer-Sklar family of t-norms is a parametric family ...  Read More

Intelligent application for Heart disease detection using Hybrid Optimization algorithm

Marzieh Eskandari; Zeinab Hassani

Volume 51, Issue 1 , June 2019, , Pages 15-27


  Prediction of heart disease is very important because it is one of the causes of death around the world. Moreover, heart disease prediction in the early stage plays a main role in the treatment and recovery disease and reduces costs of diagnosis disease and side effects it. Machine learning algorithms ...  Read More

Remainder Cordial Labeling of Graphs

R. Ponraj; K. Annathurai; R. Kala

Volume 49, Issue 1 , June 2017, , Pages 17-30


  In this paper we introduce remainder cordial labeling of graphs. Let $G$ be a $(p,q)$ graph. Let $f:V(G)\rightarrow \{1,2,...,p\}$ be a $1-1$ map. For each edge $uv$ assign the label $r$ where $r$ is the remainder when $f(u)$ is divided by $f(v)$ or $f(v)$ is divided by $f(u)$ according as $f(u)\geq ...  Read More

On Generalized Weak Structures

R. Jamunarani; P. Jeyanthi; T. Noiri

Volume 47, Issue 1 , June 2016, , Pages 21-26


  Avila and Molina [1] introduced the notion of generalized weak structures which naturally generalize minimal structures, generalized topologies and weak structures and the structures α (g),π(g),σ(g) and β (g). This work is a further investigation of generalized weak structures due ...  Read More

Vertex Equitable Labeling of Double Alternate Snake Graphs

P. Jeyanthi; A. Maheswari; M. Vijayalakshmi

Volume 46, Issue 1 , December 2015, , Pages 27-34


  Let G be a graph with p vertices and q edges and A = {0, 1, 2, . . . , [q/2]}. A vertex labeling f : V (G) → A induces an edge labeling f∗ defined by f∗(uv) = f(u) + f(v) for all edges uv. For a ∈ A, let vf (a) be the number of vertices v with f(v) = a. A ...  Read More

Improved label propagation algorithms with node attribute and link strength for community detection

Mohsen Arab; Mahdieh Hasheminezhad

Volume 50, Issue 1 , June 2018, , Pages 29-50


  Community detection has a wide variety of  applications in different fields such as data mining, social network analysis and so on. Label Propagation Algorithm (LPA) is a simple and fast community detection algorithm, but it has low accuracy. There have been presented   some advanced versions ...  Read More