Volume 56 (2024)
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)

توابع احتمالی حاکم بر نیروها و لنگرهای ناشی از امواج تصادفی دریا بر پایه قائم

Mohammad Ali Lotfollah Yaghin; Ali Reza Mojtahedi

Volume 41, Issue 6 , January 2008, , Pages 797-807

https://doi.org/10.22059/jac.2013.7895

Abstract
  Using the statistical characteristics is one of the methods to justify the random nature of the ocean waves. Probability function are used to facilitate the studies of the random waves parameters, such as the surface and height and period of the waves. Since, the force of the ocean waves are the prevalent ...  Read More

پیش‌بینی جریان و انتقال حرارت در کانال‌های ریب‌دار سه بعدی توسط مدل‌های ?-K خطی و غیرخطی

Hooman Naimi; Mehrdad Raisee

Volume 43, Issue 1 , April 2009, , Pages 125-138

https://doi.org/10.22059/jac.2013.7680

Abstract
  The present paper deals with the prediction of three-dimensional fluid flow and heat transfer in rib-roughened ducts of square cross-section. Such flows are of direct relevance to the internal cooling system of modern gas turbine blades. The main objective is to assess how a recently developed variant ...  Read More

Minimum Tenacity of Toroidal graphs

Hamid Doost Hosseini

Volume 47, Issue 1 , June 2016, , Pages 127-135

https://doi.org/10.22059/jac.2016.7951

Abstract
  The tenacity of a graph G, T(G), is de ned by T(G) = min{[|S|+τ(G-S)]/[ω(G-S)]}, where the minimum is taken over all vertex cutsets S of G. We de ne τ(G - S) to be the number of the vertices in the largest component of the graph G - S, and ω(G - S) be the number of components of G ...  Read More

Exergy Optimization Applied to Linear Parabolic

Ahmad Kahrobaian; Hamid Reza Malekmohammadi

Volume 42, Issue 1 , April 2008, , Pages 131-144

https://doi.org/10.22059/jac.2013.7741

Abstract
  A new method of optimization on linear parabolic solar collectors using exergy analysis is presented. A comprehensive mathematical modeling of thermal and optical performance is simulated and geometrical and thermodynamic parameters were assumed as optimization variables. By applying a derived expression ...  Read More

A Review of Replica Replacement Techniques in Grid Computing and Cloud Computing

Najme Mansouri; Mohammad Masoud Javidi

Volume 51, Issue 2 , December 2019, , Pages 134-151

https://doi.org/10.22059/jac.2019.75291

Abstract
  A data-intensive computing platform, encountered in some grid and cloud computing applications, includes numerous tasks that process, transfer or analysis large data files. In such environments, there are large and geographically distributed users that need these huge data. Data management is one of ...  Read More

Normalized Tenacity and Normalized Toughness of Graphs

A. Javan; M. Jafarpour; D. Moazzami; A. Moieni

Volume 49, Issue 2 , December 2017, , Pages 141-159

https://doi.org/10.22059/jac.2017.67083

Abstract
  In this paper, we introduce the novel parameters indicating Normalized Tenacity ($T_N$) and Normalized Toughness ($t_N$) by a modification on existing Tenacity and Toughness parameters.  Using these new parameters enables the graphs with different orders be comparable with each other regarding their ...  Read More

A Survey On the Vulnerability Parameters of Networks

Mahmood Shabankhah

Volume 48, Issue 1 , December 2016, , Pages 155-162

https://doi.org/10.22059/jac.2016.7955

Abstract
  The analysis of vulnerability in networks generally involves some questions about how the underlying graph is connected. One is naturally interested in studying the types of disruption in the network that maybe caused by failures of certain links or nodes. In terms of a graph, the concept of connectedness ...  Read More

Tenacity and rupture degree parameters for trapezoid graphs

Dara Moazzami

Volume 51, Issue 1 , June 2019, , Pages 157-164

https://doi.org/10.22059/jac.2019.71927

Abstract
  Reliability of networks is an important issue in the field of graph and network. Computation of network vulnerability parameters is NP-complete for popular network topologies such as tree, Mesh, Cube, etc.In this paper, we will show that the tenacity and rupture degree parameters for trapezoid graphs ...  Read More

Vertex Switching in 3-Product Cordial Graphs

P. Jeyanthi; A. Maheswari; M. VijayaLakshmi

Volume 50, Issue 1 , June 2018, , Pages 185-188

https://doi.org/10.22059/jac.2018.68965

Abstract
  A mapping  $f: V(G)\rightarrow\left\{0, 1, 2 \right\}$ is called 3-product cordial labeling if $\vert v_f(i)-v_f(j)\vert \leq 1$ and $\vert e_f(i)-e_f(j)\vert \leq 1$ for any $ i, j\in \{0, 1, 2\}$, where $v_f(i)$ denotes the number of vertices labeled  with $i, e_f (i)$ denotes the number ...  Read More

شبیه سازی سه بعدی فرایند اکستروژن مستقیم خارج از مرکز با روش اجزاء محدود و مقایسه با نتایج تجربی

Caren Abrinia; Jalal Pour Hosseini Baboddashti

Volume 41, Issue 4 , November 2007, , Pages 369-377

https://doi.org/10.22059/jac.2013.7870

Abstract
  In this paper the eccentric forward extrusion of sections has been simulated and analyzed using FEM Abaqus-explicit. The results have been compared to those obtained from upper bound theorem and experimental works. Close agreements was observed between the FEM and experimental work and as compared with ...  Read More

کاربرد مدل‌سازی عددی سه‌بعدی در شبیه‌سازی پدیده‌های پیچیده مهندسی رودخانه

Ahmad Shakibaee Nia; Amir Reza Zarrati; Mohammad Reza Majd Zadeh Tabatabaee

Volume 42, Issue 4 , August 2008, , Pages 443-455

https://doi.org/10.22059/jac.2013.7774

Abstract
  Most of river engineering problems are complicated and need to be analyzed by three dimensional models of flow and sediment transport. Considering the fact that computers and numerical methods with great ability of flow and sediment transport simulation are developing quickly, using numerical modeling ...  Read More

ارزیابی قابلیت اطمینان تولید در بازار برق رقابتی کامل

Hossein Harounabadi; Mahmoud Reza Haghifam; Mahmoud Fotouhi Firouzabad

Volume 41, Issue 5 , December 2007, , Pages 653-662

https://doi.org/10.22059/jac.2013.7884

Abstract
  Deregulation policy has caused some changes in the concepts of power system reliability assessment. This paper deals with generation reliability evaluation in perfect competition power market using market economic concepts and its dynamic. Also, because of power markets and generators’ forced outages ...  Read More

بررسی تأثیر محصورشدگی بتن در رفتار غیرخطی دیوارهای برشی بتن‌آرمه بالدار

Ali Kheiroddin; Ali Reza Morteza'ee

Volume 41, Issue 6 , January 2008, , Pages 725-738

https://doi.org/10.22059/jac.2013.7896

Abstract
  Flanged shear walls are used extensively in moderate- and high-rise buildings to resist lateral loads induced by earthquakes. The seismic performance of many buildings is, therefore, closely linked to the behavior of the reinforced concrete walls. They must be carefully designed to provide not only adequate ...  Read More

Economical Design of Double Variables Acceptance Sampling With Inspection Errors

Ali Reza Arshadi Khamseh; Seyyed Mohammad Taghi Fatemi Ghomi; Majid Aminnayyeri

Volume 41, Issue 7 , February 2009, , Pages 959-967

https://doi.org/10.22059/jac.2013.7910

Abstract
  The paper presents an economical model for double variable acceptance sampling with inspection errors. Taguchi cost function is used as acceptance cost while quality specification functions are normal with known variance. An optimization model is developed for double variables acceptance sampling scheme ...  Read More

جداسازی آب و نمک از نفت خام در میدان الکتریکی غیر یکنواخت

Morteza Hosseini

Volume 41, Issue 2 , July 2007, , Pages 151-158

https://doi.org/10.22059/jac.2013.7848

Abstract
  This study is about the non-uniform electric field for splitting of water in oil emulsion. If the process occurs in an inhomogeneous electrical field, the drops are polarized and then their mobility is increased. The emulsion drops will be charged and move toward the central point of splitter where the ...  Read More

طراحی بهینه‌ موج‌شکن مرکب کیسونی تحت اثر امواج غیرخطی

Ali Reza Soltankouhi; Khosro Bargi

Volume 42, Issue 4 , August 2008, , Pages 431-441

https://doi.org/10.22059/jac.2013.7775

Abstract
  Breakwaters are the important and the costly ones of the marine structures. Composite breakwater is one of the common types in the world. Because of the progress in marine industry in Iran in recent years, designers have noticed this structure. Because of the sensitivity of composite breakwater to environmental ...  Read More

نقش برخی از پارامترهای مؤثر بر روی واکنش به ضربه صفحات کامپوزیتی هیبریدی هوشمند

Ali Shokouhfar; Seyyed Mohammad Reza Khalili; Faramarz Ashnaye Ghasemi

Volume 41, Issue 4 , November 2007, , Pages 459-471

https://doi.org/10.22059/jac.2013.7871

Abstract
  In this paper, the response of hybrid composite laminate plate reinforced by the smart wires (shape memory or the SMA wires) subjected to low velocity impact is studied. The smart wires are embedded within the layers of the composite laminate. The effect of the smart wires on contact force history, and ...  Read More