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)

بهینه سازی تک معیاره و چند معیاره برج خنک کن خشک هلر در نیروگاه‌های سیکل ترکیبی با استفاده از الگوریتم ژنتیک

Hassan Shokouhmand; Mohammad Ali Nazari; Babak Ghaem Panah; Mohammad Reza Aligoodarzi

Volume 43, Issue 1 , April 2009, , Pages 111-124

https://doi.org/10.22059/jac.2013.7678

Abstract
  In this paper the effect of site conditions, which are Altitude, Temperature and Relative Humidity and also Heat Dissipation Capacity are investigated on the optimized design of natural draft dry cooling towers with specific kind of heat exchangers, known as Forgo T60 type. A genetic algorithm program ...  Read More

Xerus Optimization Algorithm (XOA): a novel nature-inspired metaheuristic algorithm for solving global optimization problems

Farnood Samie Yousefi; Noushin Karimian; Amin Ghodousian

Volume 51, Issue 2 , December 2019, , Pages 111-126

https://doi.org/10.22059/jac.2019.75188

Abstract
  Over the recent years, many research has been carried out on applying the optimization approach to science and engineering problems. Thereby, numerous metaheuristic algorithms have been developed for solving such type of challenge. Despite an increase in the number of these algorithms, there is currently ...  Read More

Linear optimization on Hamacher-fuzzy relational inequalities

Amin Ghodousian; Mohammadsadegh Nouri

Volume 49, Issue 1 , June 2017, , Pages 115-150

https://doi.org/10.22059/jac.2017.7988

Abstract
  In this paper, optimization of a linear objective function with fuzzy relational inequality constraints is investigated where the feasible region is formed as the intersection of two inequality fuzzy systems and Hamacher family of t-norms is considered as fuzzy composition. Hamacher family of t-norms ...  Read More

تحلیل و طراحـی دکلهای انتقال نیـرو با استفاده از نظریه قابلیت اعتماد

Seyyed Ahmad Mirsharifi

Volume 41, Issue 1 , March 2007, , Pages 117-129

https://doi.org/10.22059/jac.2013.7833

Abstract
  At the moment, Moshanir loading code which has been provided by Tavanir Company in 1998 is used for loading transmission line towers. Also ASCE52 are applied for designing these structures. In the above Moshanir loading code, loading parameters such as, maximum yearly ice thickness, maximum monthly ...  Read More

Some Properties of $(1,2)^*$-Soft\\ b-Connected Spaces

N. Revathi; K. Bageerathi

Volume 49, Issue 2 , December 2017, , Pages 119-127

https://doi.org/10.22059/jac.2017.7985

Abstract
  In this paper we introduce the concept of $(1,2)^*$-sb-separated sets and $(1,2)^*$-soft b-connected spaces and prove some properties related to these \break topics. Also we disscused the properties of $(1,2)^*$-soft b- compactness in soft bitopological space  Read More

$k$-Total difference cordial graphs

R Ponraj; S.Yesu Doss Philip; R Kala

Volume 51, Issue 1 , June 2019, , Pages 121-128

https://doi.org/10.22059/jac.2019.71773

Abstract
  Let $G$ be a graph. Let $f:V(G)\to\{0,1,2, \ldots, k-1\}$ be a map where $k \in \mathbb{N}$ and $k>1$. For each edge $uv$, assign the label $\left|f(u)-f(v)\right|$. $f$ is called a $k$-total difference cordial labeling of $G$ if $\left|t_{df}(i)-t_{df}(j)\right|\leq 1$, $i,j \in \{0,1,2, \ldots, ...  Read More

A Survey on Stability Measure of Networks

Peyman Nasehpour

Volume 48, Issue 1 , December 2016, , Pages 141-148

https://doi.org/10.22059/jac.2016.7952

Abstract
  In this paper we discuss about tenacity and its properties in stability calculation. We indicate relationships between tenacity and connectivity, tenacity and binding number, tenacity and toughness. We also give good lower and upper bounds for tenacity.  Read More

Changes in Artificial Neural Network Learning Parameters and Their Impact on Modeling Error Reduction

Somayeh Mehrabadi

Volume 50, issue 2 , December 2018, , Pages 141-155

https://doi.org/10.22059/jac.2018.70904

Abstract
  The main objective of this research is to investigate the effect of neural network architecture parameters on model behavior. Neural network architectural factors such as training algorithm, number of hidden layer neurons, data set design in training stage and the changes made to them, and finally its ...  Read More

Novel Computation of Algorithmic Geometric Series and Summability

Chinnaraji Annamalai

Volume 50, Issue 1 , June 2018, , Pages 151-153

https://doi.org/10.22059/jac.2018.68866

Abstract
  This paper presents a new mathematical technique for computation of geometric series and summability. This technique uses Annamalai’s computing model of algorithmic geometric series and its mathematical structures for further development of the infinite geometric series and summability. This could ...  Read More

بهینه سازی روش شستشوی غشاهای لبنی

Maryam Mashayekhi; Reza Rousta Azad

Volume 41, Issue 2 , July 2007, , Pages 179-184

https://doi.org/10.22059/jac.2013.7845

Abstract
  The Tagouchi method was used for providing the instruction of ultra-filter dairy membrane cleaning. The goal function with using of four undimentionalized parameter, i.e., water and milk serum flux, percent of protein and dry mass of permeate, as quality indicator of cleaning of cleaned membrane, was ...  Read More

Predicting the Liquid Density of Gas Condensates and LNG Mixtures from Equations of State

Ali Reza Salehpour; Khashayar Nasrifar

Volume 42, Issue 2 , May 2008, , Pages 257-268

https://doi.org/10.22059/jac.2013.7751

Abstract
  In this contribution, two approaches are followed to predict the saturated liquid density of liquefied natural gas (LNG) mixtures. In one approach, 12 cubic equations of state (EoSs), comprising the popular Peng-Robinson (PR) and Redlich-Kwong-Soave (RKS), are employed to predict the saturated liquid ...  Read More

آنالیز تغییر شکل سطحی زمین در اثر زلزله 6 آذر 1384 جزیره قشم با استفاده از تصاویر راداری

Masoume Amighpey; Behzad Vosoughi; Maryam Dehghani

Volume 43, Issue 4 , September 2009, , Pages 369-377

https://doi.org/10.22059/jac.2013.7709

Abstract
  An earthquake with the magnitude of 5.9 Mw occurred in Qeshm Island and Hormozgan province in November 27th 2005. 3D co-seismic deformation field caused by the earthquake are determined based on the ascending and descending interferograms and azimuth offsets. The peak to peak estimated displacement is ...  Read More

معرفی و شبیه سازی روش جدید اندازه گیری ضریب تلفات عایقی و پرمتیویته نسبی

Hassan Abravesh

Volume 41, Issue 5 , December 2007, , Pages 535-540

https://doi.org/10.22059/jac.2013.7882

Abstract
  For evaluating quality of electrical insulation, it is necessary to measure the property of insulators. Dielectric constant and loss tangent (tans) are two important parameters for determining the property of insulator. The measurement of above parameters is normally based on the time- domain and frequency-domain, ...  Read More

ررسی ساختار نانو ایجاد شده بر سطح آلیاژ آلومینیوم 6061 با استفاده از میکروسکوپ نیروی اتمی و پراش اشعه ایکس

Majid Parvizi; Hamid Reza Ghasemi Monfared Rad; Mohammad Habibi Parsa

Volume 42, Issue 5 , September 2008, , Pages 625-630

https://doi.org/10.22059/jac.2013.7785

Abstract
  Wire-brushing is used for different purposes such as removing metal surfaces oxides, increasing surface brightness, improving fatigue properties and surface activation before coating. The wire-brushing severely scratches and stirs the metals in the surface layers, so that complicated metal flow gives ...  Read More

قالب جزء محدود پوسته استوانه ای

Mohammad Reza Pajand; Reza Khajavi

Volume 42, Issue 6 , December 2008, , Pages 713-721

https://doi.org/10.22059/jac.2013.7798

Abstract
  Curls and curves of a shell interweave its various strain modes and link them together. This interactional behavior has yet frustrated all attempts for the construction of shell templates, which needs for an individual element test in traditional approaches. Such a test fails to work for shell elements ...  Read More

(طراحی مدل نوین پشتیبانی تصمیم‌گیری جهت ارزیابی و انتخاب پیمانکاران عمرانی در مناقصه‌ها (در ایران

Jafar Razmi; Hassan Haleh; Sa'eed Meshkin Fam

Volume 41, Issue 7 , February 2009, , Pages 897-909

https://doi.org/10.22059/jac.2013.7908

Abstract
  Contractor evaluation and selection is one of the most important decision making problems that many regulations and methods have been introduced for it. In Iran, "Planning and Management Organization" is responsible for classification and prequalification of contractors and due to this responsibility, ...  Read More

حل مسئله زمان بندی ماشینهای موازی نامرتبط با اهداف کل زودکرد وزنی و کل دیرکرد وزنی با استفاده از الگوریتم جستجوی پراکنده چند هدفه

Reza Tavakoli Moghadam; Fariborz Jolai; Somayyeh Ghandi Beygi

Volume 42, Issue 7 , January 2009, , Pages 923-934

https://doi.org/10.22059/jac.2013.7812

Abstract
  The parallel machine scheduling problem is an important and difficult problem to be considered in the real-world situations. Traditionally, this problem consists of the scheduling of a set of independent jobs on parallel machines with the aim of minimizing the maximum job completion. In today's manufacturing ...  Read More

همکاری رباتها در جابجایی جسم نامعین توسط کنترلر امپدانسچندگانه

Farzad Gheraghpour Samavati; Seyyed Ali Akbar Moosavian

Volume 42, Issue 1 , April 2008, , Pages 65-76

https://doi.org/10.22059/jac.2013.7740

Abstract
  Parameter identification techniques are particularly attractive to determine the inertial parameters of robot manipulators and manipulated payloads. These parameters are particularly needed in implementation of a model-based controller for robot manipulators. In this paper, the inertial parameters of ...  Read More

پیش بینی زبری سطح در تراش کاری خشک به کمک شبکه های فازی- عصبی تطبیقی

Ramezan Ali Mahdavi Nejad; Kamran Tamimi

Volume 43, Issue 1 , April 2009, , Pages 103-110

https://doi.org/10.22059/jac.2013.7679

Abstract
  Optimization of machining parameters is very important and the main goal in every machining process. Surface finishing prediction is a pre-requirement to establish a center for automatic machining operations. In this research, a neuro-fuzzy approach is used in order to model and predict the surface roughness ...  Read More