نتایج جستجو برای: unmaturity convergency

تعداد نتایج: 152  

ژورنال: مهندسی دریا 2012
آتشی پور, سید رسول, اسحاقی, مهدی, حسینی هاشمی, شاهرخ, کریمی, محمود,

This paper deals with a free vibration analysis of functionally graded elliptical plates with different classical boundary conditions on the basis of polynomial-Ritz method and classical plate theory. The proposed admissible function is capable to obtain accurate natural frequencies of various classical boundary conditions namely, clamped, free and simply supported edges. The mechanical propert...

B Soltani, M Memar Ardestani Sh Shams

The buckling behavior of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) plates resting on Winkler-Pasternak elastic foundations under in-plane loads for various temperatures is investigated using element-free Galerkin (EFG) method based on first-order shear deformation theory (FSDT). The modified shear correction factor is used based on energy equivalence principle. Carbon ...

2005
KEN D. SHIMIZU

A rigid dinitrile ligand was synthesized from two xanthene units condensed to a naphthalene-1,4,5,8diimide spacer. The rigidity and C shape of the ligand gave exclusively trans complexes with Pd(II), Ag(I), and Au(I). Evidence for complexation, coordination geometry, and stoichiometry was provided by a combination of 1H NMR, 19F NMR, and IR spectroscopy. The AuBF4 and PdCl2 complexes were shown...

2015
Raif Serdarevic

Introduction: Accommodative Convergence/Accommodation (AC/A) ratio is constant at one and the same person in the course of life, i.e. the same ratio accommodative convergence monitor any change in accommodation measured in diopters. Such a perfect relationship is possible if there are no refractive anomalies in both eyes and oculomotor imbalance of eye muscles. Material and methods: We are exam...

Journal: :Chemical communications 2011
Jayasree M Srinivasan Priya A Mathew Amie L Williams John C Huffman Jeffrey N Johnston

A concise synthesis of a highly functionalized intermediate lacking only C10 of the mitomycin backbone is described. The key to this development is the Brønsted acid-catalyzed aza-Darzens reaction used to forge the cis-aziridine. Additionally an oxidative ketalization fortuitously occurs during the quinone-enamine coupling step, leading to an orthogonally protected hydroquinone.

2009
A. Aghaei M. J. Abdolhosseini Qomi M. T. Kazemi A. R. Khoei

0020-7683/$ see front matter 2009 Elsevier Ltd. A doi:10.1016/j.ijsolstr.2009.01.013 * Corresponding author. Tel.: +98 21 6600 5818; fa E-mail address: [email protected] (A.R. Khoei). The Cauchy–Born hypothesis (CB) provides a hierarchical approach in the molecular theory of crystal elasticity to relate the continuum and atomic deformations. This kinematic theory has been extensively used as t...

‎In this paper‎, ‎we present a new modification of Newton's method‎ ‎for finding a simple root of a nonlinear equation‎. ‎It has been‎ ‎proved that the new method converges cubically‎.

Amir Sadeghi

The computation of the inverse roots of matrices arises in evaluating non-symmetriceigenvalue problems, solving nonlinear matrix equations, computing some matrixfunctions, control theory and several other areas of applications. It is possible toapproximate the matrix inverse pth roots by exploiting a specialized version of New-ton's method, but previous researchers have mentioned that some iter...

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