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 42 (2008)
Volume 41 (2007)
مدل‌سازی روابط توپولوژیک سه بعدی فازی در محیط GIS

Roozbeh Shad; Mohammad Sa'di Mesgari

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

https://doi.org/10.22059/jac.2013.7700

Abstract
  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

طراحی و اجرای GIS کاربردی جهت مکان یابی شهرک های صنعتی با استفاده از مدل‌های فازی، وزن های نشان‌گر و ژنتیک

Roozbeh Shad; Hamid Ebadi; Mohammad Sa'di Mesgari; Ali Vafaee Nejad

Volume 43, Issue 4 , September 2009, Pages 417-429

https://doi.org/10.22059/jac.2013.7701

Abstract
  Different industrial decision makers and managers in our country, try to select and organize locations for aggregating industrial units, estates and areas with respect to land use planning visions and industrial development strategies. In this regard, considering large quantity of the input data and ...  Read More

ساختار دهی آنی داده‌‌های مکانی ورودی GIS با تأکید بر عارضه راه

Shirin Malihi; Hamid Ebadi; Farshid Farnoud Ahmadi; Mehdi Maboudi

Volume 43, Issue 4 , September 2009, Pages 479-488

https://doi.org/10.22059/jac.2013.7702

Abstract
  An important issue in implementation of a GIS system is preparation of data to be entered in GIS. To produce spatial data for GIS using photogrammetric techniques, conventional method is to apply photogrammetric and GIS systems individually (off-line procedure). This approach is costly, time consuming ...  Read More

توسعه یک الگوریتم مکانی ریزدانه جهت ارزیابی میزان دسترسی به خدمات شهری

Mohammad Tale'i; Mohammad Sa'di Mesgari; Ali Sharifi

Volume 43, Issue 4 , September 2009, Pages 441-454

https://doi.org/10.22059/jac.2013.7704

Abstract
  This research is aimed at developing a model for measuring and comparison amount of supply and demand for different urban services from quality of life and equity perspectives, in urban built-up areas. This paper explains different steps of implementing the model as a tool for evaluating accessibility ...  Read More

طراحی و توسعه یک روش تلفیقی تناظریابی ناحیه ای و عارضه مبنای جدید برای توجیه نسبی در فتوگرامتری برد کوتاه

Seyyed Abdollah Kianejad; Hamid Ebadi; Masoud Varshosaz; Barat Mojarradi

Volume 43, Issue 4 , September 2009, Pages 455-466

https://doi.org/10.22059/jac.2013.7705

Abstract
  By far, many stereo-matching techniques have been successfully proposed and applied in digital aerial photogrammetry. However, due to some problems such as large parallaxes, occlusions, geometric deformations, and repetitive patterns in convergent close range images, these methods may not be applicable ...  Read More

روش‌های تجزیه مقادیر منفرد منقطع و تیخونوف تعمیم‌یافته در پایدارسازی مسئله انتقال به سمت پائین

Ali Reza Azmoude Ardalan; Abdorreza Safari; Yahya Tavakkoli

Volume 43, Issue 4 , September 2009, Pages 355-368

https://doi.org/10.22059/jac.2013.7708

Abstract
  The methods applied to regularization of the ill-posed problems can be classified under “direct” and “indirect” methods. Practice has shown that the effects of different regularization techniques on an ill-posed problem are not the same, and as such each ill-posed problem requires its own investigation ...  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

تحلیل حرکت جریانات دریائی در تصاویر حرارتی سطح آب دریا

Mehdi Hassanlou; Mohammad Reza Serajian

Volume 43, Issue 4 , September 2009, Pages 379-389

https://doi.org/10.22059/jac.2013.7710

Abstract
  Oceanographic images obtained from environmental satellites by a wide range of sensors allow characterizing natural phenomena through different physical measurements. For instance Sea Surface Temperature (SST) images, altimetry data and ocean color data can be used for characterizing currents and vortex ...  Read More

مدل‌سازی اجزای محدود برش ماده فولادی با جت آب دارای ذرات برنده

Mehdi Takaffoli; Aghil Yusefikoma

Volume 43, Issue 4 , September 2009, Pages 489-499

https://doi.org/10.22059/jac.2013.7712

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 More

ساخت ماکرو با هدف رهگیری دو پدیده چروکیدگی و ترکیدگی در فرآیند هیدروفرمینگ لوله

Keyvan Hosseini Safari; Mahmoud Mousavi Mashhadi

Volume 43, Issue 4 , September 2009, Pages 501-509

https://doi.org/10.22059/jac.2013.7713

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 More

بررسی برخورد از جلوی یک خودروی سواری و آثار استفاده از سپر کامپوزیتی

Mohammad Shariyat; Abbas Ganjipour

Volume 43, Issue 4 , September 2009, Pages 511-518

https://doi.org/10.22059/jac.2013.7714

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 More

فرایند کشش عمیق استوانه‌های با نسبت کشش خیلی بالا

Ghader Faraji; Mohammad Kazem Besharati Givi; Saeed Yarmohammadi; Mahmoud Mousavi Mashhadi

Volume 43, Issue 4 , September 2009, Pages 519-525

https://doi.org/10.22059/jac.2013.7715

Abstract
  Deep drawing of cylindrical shapes with high limiting drawing ratio (LDR) values is relatively difficult. Annealing is a further operation, which in turn adds costs and consumes significantly time to the forming process. In the present work, cylindrical cups from brass sheet were made with only limited ...  Read More

تحلیل سه‌بعدی اکستروژن مستقیم با روش قاچی و المان محدود

Amin Samadi Ghoushchi; Caren Abrinia; Mohammad Kazem Besharati Givi

Volume 43, Issue 4 , September 2009, Pages 527-535

https://doi.org/10.22059/jac.2013.7716

Abstract
  Slab method of analysis has been used for solving metal forming problems for a long time. However it has been restricted to plane strain and axisymmetric problems due to limitations in its formulations. In this paper a new formulation has been proposed so that it could be applied to three dimensional ...  Read More

کنترل بهینة شار حرارتی سطحی در یک جسم دوبعدی با خواص وابسته به دما

Farshad Kowsari; Seyyed Morteza Azimi

Volume 43, Issue 4 , September 2009, Pages 537-545

https://doi.org/10.22059/jac.2013.7717

Abstract
  In this paper the optimal control of boundary heat flux in a 2-D solid body with an arbitrary shape is performed in order to achieve the desired temperature distribution at a given time interval. The boundary of the body is subdivided into a number of components. On each component a time-dependent heat ...  Read More

تحلیل تنش ناشی از FOD روی یک پره توربین گاز از جنس سوپرآلیاژ پایه نیکل

Seyyed Masoud Marandi; Mehdi Tajdari; Khosro Rahmani

Volume 43, Issue 4 , September 2009, Pages 547-554

https://doi.org/10.22059/jac.2013.7718

Abstract
  Foreign object damage (FOD) occurs when hard, millimeter-sized objects such as gravel or sand and even the pieces of the engine components are ingested into aircraft jet engines. Particles impacting blades produce small indentation craters which can become sites for fatigue crack initiation, severely ...  Read More

کنترل مسیر خودکار میکرو زیردریایی 3 درجه آزادی با الهام از حرکت کوسه‌ماهی

Abdorrasoul Mayyahi; Aghil Yousefikoma; Ali Rangin Kaman; Hesam Maleki

Volume 43, Issue 4 , September 2009, Pages 555-565

https://doi.org/10.22059/jac.2013.7719

Abstract
  An autonomous underwater vehicle (AUV) with less noise and vortices as well as efficient power consumption, is pursued in this research by inspiration of shark swimming. Design, hydrodynamic analysis, modeling, fabrication, navigation, and control of this novel AUV is the main goal of this research. ...  Read More

تحلیل استاتیکی ورق‌های چندلایه کامپوزیتی با لایه‌های پیزوالکتریک

Ali Naserian; Masoud Tahani

Volume 43, Issue 4 , September 2009, Pages 566-582

https://doi.org/10.22059/jac.2013.7720

Abstract
  The Levy-type analytical solution is employed for the problem of bending of cross-ply and antisymmetric angle-ply piezoelectric hybrid laminated plates with at least two simply supported opposite edges. The governing equations of equilibrium are derived in the framework of the first-order shear deformation ...  Read More

شبیه‌سازی المان محدود فرایند برش متعامد و تعیین ضخامت لایه چسبنده به ابزار در ناحیه دوم برش

Vahid Norouzifard; Aghil Yousefikoma

Volume 43, Issue 4 , September 2009, Pages 583-595

https://doi.org/10.22059/jac.2013.7721

Abstract
  The built up layer thickness in secondary deformation zone is one of the important parameters in metal cutting process. The built up layer (BUL) is formed in second deformation zone near the tool-chip interface in the back of the chip. This parameter influences the tool life and machined surface quality. ...  Read More