نتایج جستجو برای: two dimensional elastodynamic analysis

تعداد نتایج: 4880163  

ژورنال: روانشناسی معاصر 2017

In recent years, there has been an increase in the playing of digital games in children, adolescents and adults worldwide. Not only has interest in digital games grown dramatically, but variations in the types of games in different fields have also occurred. An example is the emergence of three- and two-dimensional games. Based on this, the purpose of this study was to investigate the effect of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1391

the present study aimed to investigate the possible effects of focused highlighted error feedback on grammatical accuracy of writing among iranian intermediate efl learners. after selecting 52 homogenous participants from among 70 university students attending azad university of rasht and randomly dividing them into two intact groups of 26 students, the researcher exposed the participants of th...

Journal: :SIAM J. Numerical Analysis 2014
Douglas N. Arnold Jeonghun J. Lee

We analyze the application to elastodynamic problems of mixed finite element methods for elasticity with weakly imposed symmetry of stress. Our approach leads to a semidiscrete method which consists of a system of ordinary differential equations without algebraic constraints. Our error analysis, which is based on a new elliptic projection operator, applies to several mixed finite element spaces...

Journal: :Geophysical Journal International 1985

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1391

abstract: postmethod is a newly developed pedagogy which as an alternative to method rejects the notion of good or bad methods and the concept of best method that can be generalized and appropriate for all contexts. instead, it treats each context as unique and one of a kind which cant be compared with other cases. this study is a postmethod-oriented one which investigates whether and how far t...

Finite element method (FEM) is one of the most famous methods which has many applications in varies studies such as the study of crack propagation in engineering structures. However, unless extremely fine meshes are employed, problem arises in accurately modelling the singular stress field in the singular element area around the crack tip. In the present study, the crack growth simulation has b...

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

this study investigated how group formation method, namely student-selected vs. teacher-assigned, influences the results of the community model of teaching creative writing; i.e., group dynamics and group outcome (the quality of performance). the study adopted an experimental comparison group and microgenetic research design to observe the change process over a relatively short period of time. ...

Journal: :Extreme Mechanics Letters 2017

2002
René Marklein Kannan Balasubramanian Karl J. Langenberg Jinghong Miao Saoer M. Sinaga

This paper presents a comparative study between different scalar linear and nonlinear inversion algorithms applied to electromagnetic and elastodynamic (ultrasonic) data sets. The inversion schemes are considered as follows: Synthetic Aperture Radar/Synthetic Aperture Focusing Technique, Diffraction Tomography, MUSIC Algorithm, Linear Sampling Method, Modified Gradient in Field Method, Contrast...

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