نتایج جستجو برای: material model

تعداد نتایج: 2413062  

Journal: :journal of nanostructures 2012
a. ataie h. sabarou

the synthesis of nano- structured cobalt through a controlled chemical process followed by heat treating at various temperatures is studied. the product is characterized by icp, xrd, fesem , and tem, indicating that the as- synthesized particles have an amorphous structure with 1.76 for co/b ratio, an average size of 50 nm. the transformation of intermediate phases into single phase nano- cryst...

Journal: :مدیریت بازرگانی 0
رحیم محترم مربی مدیریت بازرگانی دانشکدة مدیریت، دانشگاه تهران، تهران، ایران طهمورث حسنقلی پور دانشیار گروه مدیریت بازرگانی دانشکدة مدیریت، دانشگاه تهران، تهران، ایران محسن نظری دانشیار گروه مدیریت بازرگانی دانشکدة مدیریت، دانشگاه تهران، تهران، ایران احمد روستا استادیار گروه مدیریت بازرگانی دانشکدة مدیریت، دانشگاه شهید بهشتی، تهران، ایران

iraq market is a suitable and valuable market for the iranian companies considering its high facilities for exporting products. but no local model was offered to evaluate and promote the export performance of the companies. this research is done with the objective to “present local model for promoting the export performance of iranian companies”. using exploratory factor analysis, forty five cr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

Journal: :Journal of Applied Polymer Science 2021

The nonlinear mechanical behavior of viscoelastic materials is modeled based on the Schapery integral model containing internal variables. In this context, a new approach for strain-dependent material properties introduced considering one-dimensional formulation with functions an oscillatory load case. addition to storage and loss modulus, higher order harmonic oscillations in stress response a...

Journal: :Proceedings in applied mathematics & mechanics 2021

Simulation of wave propagation in bone has important applications, including improvements sonography-based early detection medical conditions like osteoporosis as a fast, cheap and risk-free diagnosis tool [1]. In modeling, the problem is often reduced to only mechanical effects. Recent research includes electrical magnetic effects well [2]. Here we present fully coupled two-phase approach for ...

There is a requirement to find accurate parameters to accomplish precise dimensional accuracy, excellent surface integrity and maximum MRR. This work studies the influence of various cutting parameters on output parameters like Cutting force, Surface roughness, Flatness, and Material removal rate while face milling. A detailed finite element model was developed to simulate the face milling proc...

2010
Ann K. Harvey Mark S. Thompson Michael Brady

The structural organisation at various levels of the tendon hierarchy is important for determining its biomechanical, functional, properties. The intricacies of this organisation, however, are not yet well defined. Developing tendon imaging and concurrent analysis methods are essential for exploring the clinical potential of image-based tendon assessment. This paper demonstrates a multimodal im...

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