Results 11 to 20 of about 40,229,784 (363)

Development of PGA Attenuation Relationships for Iran [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
Structural dynamic analyses need different earthquake parameters such as design base acceleration, design spectra and earthquake records. In order to obtain base acceleration and design spectra of a site, prevailing method is based on seismic hazard ...
Gholamreza Ghodrati Amiri   +2 more
doaj   +1 more source

Damage detection in steel structures using static data via Genetic Algorithm [PDF]

open access: yesمجله مدل سازی در مهندسی, 2015
Structural damage detection technique helps to locate and detect damage that occurred in a structure by using the observed changes of its dynamic and static characteristics.
Zahra Tabrizian   +2 more
doaj   +1 more source

Analyzing Frequency response of nano electro mechanical-resonator based on non-local elasticity theory [PDF]

open access: yesمجله مدل سازی در مهندسی, 2017
  In recent years, many experimental observations showed that by decreasing the micro- and nano-beams thicknesses size effect appears and classical continuum theory cannot be used for micro- and nano-beams modeling.
mehdi maleki   +2 more
doaj   +1 more source

The effect of mobile messaging on personality traits of housewives [PDF]

open access: yesمطالعات رسانه‌های نوین, 2019
Nowadays, many housewives are using smart phones messging.The purpose of this paper  mobile messging effects on personality traits of housewives. Method:The study was all housewives in Tehran,that numer is 3039863 and volume of example according to ...
Tayabeh mansourishad   +2 more
doaj   +1 more source

A Study on the Open Source Digital Library Software's: Special Reference to DSpace, EPrints and Greenstone [PDF]

open access: yes, 2012
The richness in knowledge has changed access methods for all stake holders in retrieving key knowledge and relevant information. This paper presents a study of three open source digital library management software used to assimilate and disseminate ...
Gul, Sumeer   +3 more
core   +2 more sources

Performance Evaluation of Position-Sensorless Operation of the BLDC Motors based on Line to Line Flux Linkage [PDF]

open access: yesمجله مدل سازی در مهندسی, 2017
This paper investigates the sensorless operation of the brushless DC permanent magnet (BLDC-PM) motors based on the line to line flux function. The three dimensional sensitivity analysis of the line to line flux function is provided.
mehrdad jafar booland   +1 more
doaj   +1 more source

المرجعيات الثقافية والبواعث الإسلامية في مسرحيات عماد الدين خليل [PDF]

open access: yesمجلة ابحاث كلية التربية الاساسية
          لدراسة المرجعيات أهمية كبيرة في سبر أغوار النص , فهي تعيننا على فهم ما يقصده الكاتب وما يسعى للوصول إليه , في معرفة ما أثر فيه , إذ تمنح المرجعيات الكاتب الفكرة وتثريه بالثقافة .
رحمة مؤيد حمودات   +1 more
doaj   +1 more source

Numerical and Experimental Study of Ventilation Effects on Ventilated Cavitating Flow [PDF]

open access: yesمجله مدل سازی در مهندسی, 2017
One of the least cost methods to reduce drag on under-water projectiles is to create ventilated cavitation. So, many of researchers have focused on this subject during recent decade.
Seyed Morteza Javadpour   +4 more
doaj   +1 more source

CFD Investigation on Nanofluids Convective Heat Transfer in a Duct Containing Spherical Surfaces [PDF]

open access: yesمجله مدل سازی در مهندسی, 2018
In this paper, heat transfer rate from these surfaces were studied by computational fluid dynamics. The effect of nanoparticles concentrations and kinds on the rate of heat transfer were investigated numerically.
R G, Hossein Beiki
doaj   +1 more source

المضامين التداولية للكناية في رثائية نزار قباني "بلقيس" [PDF]

open access: yesمجلة ابحاث كلية التربية الاساسية
الكناية هي نوع من اللغات المجازية التي يمكن استخدامها في المحادثات اليومية والاعمال الادبية. هذا النوع من اللغات تساعد في التعبير عن الذات بسلاسة اكثر عن طريق تكوين رابط ذهني بين اناس واماكن واشياء مختلفة.
الاء صلاح الدين عزيز   +1 more
doaj   +1 more source

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