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)
An Optimization Model for Epidemic Mitigation and Some Theoretical and Applied Generalizations

Sima Ranjbarfard; Amin Ghodousian; D. Moazzami

Volume 48, Issue 1 , December 2016, , Pages 99-116


  In this paper, we present a binary-linear optimization model to prevent the spread of an infectious disease in a community. The model is based on the remotion of some connections in a contact network in order to separate infected nodes from the others. By using this model we nd an exact optimal solution ...  Read More

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


  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

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


  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

بهینه سازی قابهای فولادی با استفاده از الگوریتم وراثتی اصلاح شده هوشمند

Mohammad Reza Ghasemi; Akbar Azadi

Volume 42, Issue 4 , August 2008, , Pages 465-476


  One of the major purposes of optimization in civil engineering is to perform a suitable design for the structure. This goal has to fulfill technical criteria and contain the minimum economical costs. Building frames are of the most customary civil engineering structures. Therefore, optimization of these ...  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


  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

جانمایی دوربین در طراحی شبکه‌های فتوگرامتری صنعتی با استفاده از بهینه‌سازی تکاملی چندگانه

Mohammad Sa'adat Seresht; Farhad Samadzadegan

Volume 42, Issue 3 , July 2008, , Pages 313-326


  Nowadays, the subject of vision metrology network design is local enhancement of the existing network. In the other words, it has changed from first to third order design concept. To improve the network, locally, some new camera stations should be added to the network in drawback areas. The accuracy ...  Read More

Exergy Optimization Applied to Linear Parabolic

Ahmad Kahrobaian; Hamid Reza Malekmohammadi

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


  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

تعیین نوع و زمانبندی بهینه نگهداری و تعمیرات پیشگیرانه سیستمهای چند‌جزیی بر اساس قابلیت اطمینان

Farhad Kolahan; Mohammad Doustparast; Mojtaba Mamourian

Volume 41, Issue 4 , November 2007, , Pages 511-523


  In this research, a model for optimal PM planning based on reliability is developed and solved for multi-component systems. In the proposed model, the type of PM actions for each inspection period is determined in such manner that the total weighted related costs are minimized while a minimum required ...  Read More