نتایج جستجو برای: pasternak media

تعداد نتایج: 280931  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1392

a novel acrylic acid-functionalized fe3o4 magnetic nanoparticle with a core-shell structure was developed for utilization as a heterogeneous organosuperacid in chemical transformations. the structural, surface, and magnetic characteristics of the nanosized catalyst were investigated by various techniques such as transmission electron microscopy (tem), thermogravimetric analysis (tga), and ft-ir...

In this paper, Asymmetric buckling analysis of functionally graded (FG) Circular plates with temperature dependent property that subjected to the uniform radial compression and thermal loading is investigated. This plate is on an elastic medium that simulated by Winkler and Pasternak foundation. Mechanical properties of the plate are assumed to vary nonlinearly by temperature change. The equili...

In this study, the vibration behavior of functional graded (FG) circular and annular nanoplate embedded in Visco-Pasternak foundation and coupled with temperature change is studied. It is assumed that a uniform radial magnetic field acts on the top surface of the plate and the magnetic permeability coefficient of the plate along its thickness are assumed to vary according to the volume distribu...

A Ghorbanpour Arani, M.Sh Zarei

In the present work, effect of von Karman geometric nonlinearity on the vibration characteristics of a Y-shaped single walled carbon nanotube (Y-SWCNT) conveying viscose fluid is investigated based on Euler Bernoulli beam (EBB) model. The Y-SWCNT is also subjected to a longitudinal magnetic field which produces Lorentz force in transverse direction. In order to consider the small scale effects,...

Journal: :فصلنامه رفاه اجتماعی 0
غلامرضا جعفری نیا gh. r. jafarinia

objections: today, one of the issues that perpetuate social and sustainable relationships plays an effective role in society, is social capital. the main purpose of this article, the role of mass media measurement in increasing social capital among households, the city is khormoj. theoretical frameworkfrom theorists and social capital in particular is bordiou. four indicators of social capital ...

Journal: :پژوهشنامه کتابداری و اطلاع رسانی 0

creating crisis and attempting to solve it is an important function of the mass media. this is carried out using a range of modern tools. media can influence socio-political and cultural events employing strategies and meta-strategies to form the public thinking in the direction they aim. the media emperors and the press trusts manage to form some kind of information monopoly through influencin...

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