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

  Mayyahi, Abdorrasoul؛ Yousefikoma, Aghil؛ Rangin Kaman, Ali؛ Maleki, Hesam (University of Tehran, 2009-09-01)

  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, ...

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• تحلیل استاتیکی ورق‌های چندلایه کامپوزیتی با لایه‌های پیزوالکتریک 

  Naserian, Ali؛ Tahani, Masoud (University of Tehran, 2009-09-01)

  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 ...

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

  Norouzifard, Vahid؛ Yousefikoma, Aghil (University of Tehran, 2009-09-01)

  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 ...

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

  Kowsari, Farshad؛ Azimi, Seyyed Morteza (University of Tehran, 2009-09-01)

  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 ...

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

  Hosseini Safari, Keyvan؛ Mousavi Mashhadi, Mahmoud (University of Tehran, 2009-09-01)

  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 ...

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

  Shariyat, Mohammad؛ Ganjipour, Abbas (University of Tehran, 2009-09-01)

  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 ...

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• تحلیل سه‌بعدی اکستروژن مستقیم با روش قاچی و المان محدود 

  Samadi Ghoushchi, Amin؛ Abrinia, Caren؛ Besharati Givi, Mohammad Kazem (University of Tehran, 2009-09-01)

  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 ...

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• فرایند کشش عمیق استوانه‌های با نسبت کشش خیلی بالا 

  Faraji, Ghader؛ Besharati Givi, Mohammad Kazem؛ Yarmohammadi, Saeed؛ Mousavi Mashhadi, Mahmoud (University of Tehran, 2009-09-01)

  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. ...

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

  Marandi, Seyyed Masoud؛ Tajdari, Mehdi؛ Rahmani, Khosro (University of Tehran, 2009-09-01)

  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 ...

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• تحلیل حرکت جریانات دریائی در تصاویر حرارتی سطح آب دریا 

  Hassanlou, Mehdi؛ Serajian, Mohammad Reza (University of Tehran, 2009-09-01)

  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, ...

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• مقایسه مدل‌های ژئوپتانسیلی جدید در منطقة فارس ساحلی در تولید تابعک اندازة بردار شتاب ثقل 

  Azmoude Ardalan, Ali Reza؛ Safari, Abdorreza؛ Jom'egi, Abbas Ali (University of Tehran, 2009-09-01)

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

  Takaffoli, Mehdi؛ Yusefikoma, Aghil (University of Tehran, 2009-09-01)

  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 ...

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• طراحی و بازشناسی خودکار تارگت‌های کددار در فتوگرامتری بردکوتاه 

  Sa'adat Seresht, Mohammad؛ Zarrin Panje, Nima (University of Tehran, 2009-09-01)

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

  Kianejad, Seyyed Abdollah؛ Ebadi, Hamid؛ Varshosaz, Masoud؛ Mojarradi, Barat (University of Tehran, 2009-09-01)

  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 ...

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• کاهش بعد تصاویر فراطیفی از طریق خوشه بندی فازی باندها 

  Mojarradi, Barat؛ Valadanzouj, Mohammad Javad؛ Abrishami, Hamid (University of Tehran, 2009-09-01)

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

  Tale'i, Mohammad؛ Mesgari, Mohammad Sa'di؛ Sharifi, Ali (University of Tehran, 2009-09-01)

  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 ...

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• حل سریع ابهام فاز به روش AFM در دریا 

  Safari, Abdorreza؛ Jamour, Yahya؛ Ghanizadeh, Meisam (University of Tehran, 2009-09-01)

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

  Malihi, Shirin؛ Ebadi, Hamid؛ Farnoud Ahmadi, Farshid؛ Maboudi, Mehdi (University of Tehran, 2009-09-01)

  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 ...

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