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
Tenacity and rupture degree parameters for trapezoid graphs
Volume 51, Issue 1 , June 2019, , Pages 157-164
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 Moreتعیین ضریب انتقال حرارت جابجایی اجباری سیال غیر نیوتنی در مخازن همزده با همزن توربینی زاویه‌دار
Volume 41, Issue 2 , July 2007, , Pages 159-166
Abstract
Read MoreVertex Switching in 3-Product Cordial Graphs
Volume 50, Issue 1 , June 2018, , Pages 185-188
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 Moreشبیه سازی سه بعدی فرایند اکستروژن مستقیم خارج از مرکز با روش اجزاء محدود و مقایسه با نتایج تجربی
Volume 41, Issue 4 , November 2007, , Pages 369-377
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 Moreطراحی و بازشناسی خودکار تارگت‌های کددار در فتوگرامتری بردکوتاه
Volume 43, Issue 4 , September 2009, , Pages 391-401
Abstract
Read Moreکاربرد مدلسازی عددی سه‌بعدی در شبیه‌سازی پدیده‌های پیچیده مهندسی رودخانه
Volume 42, Issue 4 , August 2008, , Pages 443-455
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 Moreاثر میزان تالک بر استحکام و احیا پذیری کلوخه های تولیدی ذوب آهن اصفهان
Volume 42, Issue 5 , September 2008, , Pages 639-646
Abstract
Read Moreارزیابی قابلیت اطمینان تولید در بازار برق رقابتی کامل
Volume 41, Issue 5 , December 2007, , Pages 653-662
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 Moreبررسی تأثیر محصورشدگی بتن در رفتار غیرخطی دیوارهای برشی بتن‌آرمه بالدار
Volume 41, Issue 6 , January 2008, , Pages 725-738
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 Moreبررسی خواص مصالح پایه سیمانی مسلح به الیاف فولادی مجعد با مقاومت کششی و شکل پذیری بالا
Volume 42, Issue 6 , December 2008, , Pages 785-794
Abstract
Read Moreیک الگوریتم ممتیک برای طراحی یکپارچه شبکه لجستیک مستقیم و معکوس در یک زنجیره تأمین
Volume 42, Issue 7 , January 2009, , Pages 947-960
Abstract
Read MoreEconomical Design of Double Variables Acceptance Sampling With Inspection Errors
Volume 41, Issue 7 , February 2009, , Pages 959-967
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 Moreجداسازی آب و نمک از نفت خام در میدان الکتریکی غیر یکنواخت
Volume 41, Issue 2 , July 2007, , Pages 151-158
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 Moreطراحی بهینه موج‌شکن مرکب کیسونی تحت اثر امواج غیرخطی
Volume 42, Issue 4 , August 2008, , Pages 431-441
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 Moreنقش برخی از پارامترهای مؤثر بر روی واکنش به ضربه صفحات کامپوزیتی هیبریدی هوشمند
Volume 41, Issue 4 , November 2007, , Pages 459-471
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 Moreمدلسازی اجزای محدود برش ماده فولادی با جت آب دارای ذرات برنده
Volume 43, Issue 4 , September 2009, , Pages 489-499
Abstract
Numerical modeling of machining processes is of significance in the parametric analysis and optimization of their performance. In this paper, a finite element-based model of abrasive waterjet (AWJ) cutting of a ductile material is presented with the help of an explicit, nonlinear finite element method. ... Read Moreبررسی تأثیرعملیات پیرسازی هم دما بر ریز ساختار، خواص مکانیکی و رفتار شکست ضربه فلز جوش فولاد زنگ‌نزن آستنیتی L316
Volume 42, Issue 5 , September 2008, , Pages 647-656
Abstract
The effects of isothermal aging at temperatures between 550-850 ?C for durations of 1-100 h on microstructure, tensile properties, and impact fracture behavior of 316L austenitic stainless steel weld metal have been investigated. For this purpose, various techniques including metallographic observations, ... Read Moreتحلیل دینامیکی سد‌های بتنی وزنی با مدلسازی مخزن به روش‌های لاگرانژی و اویلری
Volume 41, Issue 6 , January 2008, , Pages 709-724
Abstract
Because of different behavior of reservoir water and dam material, the determination of hydrodynamic pressure during earthquake is very complicated. Thus, different formulations have been presented for modeling of the dam reservoir system under dynamic loading such as earthquake. These formulations can ... Read Moreارزیابی حسّاسیّت موج‌شکن‌های مرکب کیسونی به مشخصه های هیدرولیکی و ژئوتکنیکی
Volume 42, Issue 6 , December 2008, , Pages 739-749
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 sensitivity of composite breakwaters to environmental conditions, also construction costs, difficulty of repair and maintenance and importance of equipments ... Read Moreمدل سازی رفتار خستگی کامپوزیت های تک جهته کربن/اپوکسی
Volume 41, Issue 4 , November 2007, , Pages 451-457
Abstract
Read Moreساخت ماکرو با هدف رهگیری دو پدیده چروکیدگی و ترکیدگی در فرآیند هیدروفرمینگ لوله
Volume 43, Issue 4 , September 2009, , Pages 501-509
Abstract
Determination of the optimum loading path (internal pressure- axial feeding) to restrict the Bursting, buckling and wrinkling through tube hydroforming process is necessary to produce an acceptable tube. In this paper, the wrinkling and fracture criteria are implemented to an finite element code devoted ... Read Moreتعیین ضریب عملکرد پروژه در مدیریت ارزش کسب شده با استفاده از مدیریت ریسک به منظور تخمین نتایج پایانی کار پیمانکاران
Volume 41, Issue 6 , January 2008, , Pages 787-796
Abstract
One of the common questions in all projects, is "How much would be the final cost of the project?" or "How much would be the completion duration of the project?". Earned Value Management presents a method for estimation of these results. In general methods and formula of Earned Value Management, future ... Read MoreNumerical Modeling of Launching Offshore Jackets from Transportation Barge & the Significance of Water Entry Forces on Horizontal Jacket Members
Volume 42, Issue 6 , December 2008, , Pages 809-821
Abstract
Development of a numerical model which describes launching of offshore jackets from barge is presented in this paper. In this model, in addition to capabilities of commercial softwares, water entry forces on jacket members and an implicit Newmark solution technique are included. The results are in general ... Read Moreبررسی برخورد از جلوی یک خودروی سواری و آثار استفاده از سپر کامپوزیتی
Volume 43, Issue 4 , September 2009, , Pages 511-518
Abstract
In the present paper, employing a complete model of a passenger car, contribution of various components and assemblies in the frontal crash energy absorption is determined. Thickness of components with more remarkable contribution is increased to improve the occupant safety. Furthermore, effects of substituting ... Read Moreفرایند کشش عمیق استوانه‌های با نسبت کشش خیلی بالا
Volume 43, Issue 4 , September 2009, , Pages 519-525