نتایج جستجو برای: axial and selectivecoding

تعداد نتایج: 16834876  

2015
Jing Dong Maolong Tang Yaqin Zhang Yading Jia Haining Zhang Zhijie Jia Xiaogang Wang Sanjoy Bhattacharya

PURPOSE To compare the anterior chamber depth (ACD), keratometry (K) and astigmatism measurements taken by IOLMaster and Pentacam HR in normal and high myopic (HM) eyes. DESIGN A prospective observational case series. METHODS Sixty-six normal eyes and 59 HM eyes underwent ACD, keratometry and astigmatism measurements with both devices. Axial length (AL) was measured on IOLMaster. The interd...

2004
Gang Wang Nicholas Sitar

A finite element model has been developed to simulate nonlinear response of piles/drilled piers under axial loading. The nonlinear stress-strain behaviors of soils are modeled via Drucker-Prager and von Mises type plasticity. A parametric study is carried out to address the influence of various factors, such as soil friction approximation, dilatancy, effect of interface element and shear streng...

2014
Gianfranco De Matteis Gianluca Sarracco Giuseppe Brando Federico M. Mazzolani

The component method for aluminium joints has been recently introduced in some codes and guidelines. Nevertheless, it is still in need of some development and improvement, as in some cases it was obtained by adapting the existing formulations that are valid for steel. The current paper presents the main outcomes of a parametric analysis carried out by means of finite element (FE) numerical mode...

2005
L. Vita M. Cavacece R. Stefanelli P. P. Valentini

This investigation deals with the mechanical efficiency of Cardan joints. The model includes also the effects due to manufacturing and mounting errors and the influence of rotation speed and angular configuration of the Cardan joint on the efficiency. The joint has been modeled as an RCCC spatial linkage and the full dynamic analysis has been performed. The equations of motion have been deduced...

A. Ghorbanpour Arani, S. Amir S. Shams Z. Khoddami Maraghi

Using  principle  of  minimum  total  potential  energy  approach  in conjunction  with  Rayleigh-Ritz  method,  the  electro-thermo- mechanical  axial  buckling  behavior  of  piezoelectric  polymeric cylindrical  shell  reinforced  with  double-walled  boron-nitride nanotube  (DWBNNT)  is  investigated. Coupling  between  electrical and mechanical  fields  are  considered  according  to  ...

Journal: :Revista Brasileira de Reumatologia 2013

Journal: :Postgraduate Medical Journal 1971

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1388

هدف این پایان نامه طراحی یک آنتن مایکرواستریپی در باند 900mhz با قابلیت ایجاد پلاریزاسیون های دایروی , بیضوی و خطی افقی و عمودی به صورت کنترل شده می باشد. این آنتن دارای قابلیت تنظیم فرکانس رزونانس , پهنای باند و axial ratio در یک رنج محدود را نیز داراست. سپس با استفاده از برخی تکنیک های فشرده سازی آنتن طراحی شده تا حد ممکن فشرده شد. ابتدا آنتن پچ مربعی به صورت ring مربعی در آمده و بدینوسیله تا...

Masoud Riazi Mohammad Reza Esfahani

In this research, using the Modified Compression Field Theory (MCFT), a new truss based model is proposed to predict the behavior of reinforced concrete coupling beams with diagonal reinforcement. The model is able to consider the effects of shear and axial forces and bending moment, simultaneously. The proposed model includes a nonlinear shear spring, an axial spring, two inclined truss member...

رحیم خباز خرامه, , محمد فرهاد رحیمی, , وحید میرزایی, ,

 The energy levels of deformed nuclei could be determined by Nilsson model. In this model the deformation of a nucleus has an axial symmetry, but we have considered the energy levels of a non-spherical nucleus as an elliptic form, and solved it by a degenerate first order perturbation method. The original Hamiltonian is a mixture of Spherical Shell Model Hamiltonian and a perturbation term. We ...

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