نتایج جستجو برای: non-homogenous

تعداد نتایج: 1325345  

Journal: :journal of solid mechanics 0
m shokouhfar south tehran branch, islamic azad university,tehran, iran m jabbari south tehran branch, islamic azad university,tehran, iran

in this paper, an analytical solution for computing the linear plastic stresses and critical pressure in a fgm hollow cylinder under the internal pressure due to non-axisymmetric loads is developed. it has been assumed that the modulus of elasticity was varying through thickness of the fgm material according to a power law relationship. the poisson's ratio was considered constant throughou...

Journal: :iranian journal of mechanical engineering transactions of the isme 0
milad shokouhfar islamic azad university, south tehran branch mohammad reza eslami professor and fellow of the academy of sciences, mechanical engineering, department of mechanical engineering , amirkabir university of technology, tehran, iran mohsen jabbari department of mechanical engineering, south tehran branch, islamic azad university, iran atefeh hatefkia department of mechanical engineering, south tehran branch, islamic azad university, iran

in this paper, an analytical solution for computing the linear plastic stresses and critical temperature and pressure in a fgm hollow cylinder under the internal pressure and temperature is developed. it has been assumed that the modulus of elasticity and thermal coefficient of expansion were varying through thickness of the fgm material according to a power law relationship. the poisson's...

H. Niazmand J. Jamaati M. Renksizbulut

A numerical study of 3D electrokinetic flows through micromixers was performed. The micromixers considered here consisted of heterogeneous rectangular microchannels with prescribed patterns of zeta-potential at their walls. Numerical simulation of electroosmotic flows within heterogeneous channels requires solution of the Navier-Stokes, Ernest-Plank and species concentration equations. It is kn...

Journal: :Proceedings of the National Academy of Sciences 2007

2003
Leena Lepistö Iivari Kunttu Jorma Autio Ari Visa

Clustering of the texture images is a demanding part of multimedia database mining. Most of the natural textures are non-homogenous in terms of color and textural properties. In many cases, there is a need for a system that is able to divide the non-homogenous texture images into visually similar clusters. In this paper, we introduce a new method for this purpose. In our clustering technique, t...

Journal: :Journal of High Energy Physics 2012

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Peter B Moyle Jeffrey F Mount

H abitat change and invasions of alien species are usually listed as the two biggest causes of biodiversity loss. When the two coincide, the results can be devastating, because altered habitat often favors alien species adapted to the changed conditions. This is particularly true in streams and rivers of North America, where homogenization of fish faunas through extinction of native species and...

Journal: :British Journal of Economics, Management & Trade 2015

J Sheikhi M Poorjamshidian R Ghajar, S Peyman

In this paper, the interface crack of two non-homogenous functionally graded materials is studied. Subsequently, with employing the displacement method for fracture of mixed-mode stress intensity factors, the continuous variation of material properties are calculated. In this investigation, the displacements are derived with employing of the functional graded material programming and analysis o...

Journal: :journal of solid mechanics 0
r ghajar department of mechanical engineering, k.n. toosi university ,tehran, iran s peyman department of mechanical engineering, k.n. toosi university ,tehran, iran j sheikhi department of civil engineering ,razi university , kermanshah, iran m poorjamshidian department of mechanical engineering, kashan university ,kashan, iran

in this paper, the interface crack of two non-homogenous functionally graded materials is studied. subsequently, with employing the displacement method for fracture of mixed-mode stress intensity factors, the continuous variation of material properties are calculated. in this investigation, the displacements are derived with employing of the functional graded material programming and analysis o...

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