نتایج جستجو برای: static and dynamic analysis

تعداد نتایج: 17337644  

Journal: :مهندسی بیوسیستم ایران 0
مرتضی گنجی کارشناسی ارشد، دانشگاه تهران علی رجبی پور دانشیار، دانشگاه تهران رضا علیمردانی استاد، دانشگاه تهران

agricultural crops and food materials exert frictional forces on agricultural machinery elements and on storage walls during their harvest, transportation, processing and storage. coefficient of friction is an important parameter to be predetermined in designing equipments and evaluating processes. an assessment of the coefficient of friction for agricultural materials is usually done through s...

Introduction: The present study evaluates reliability of functional balance assessment tests in children aged 7-10 and its correlation with selected anthropometric parameters. Methodology: Population of the study includes 80 students aged 7-10 (40 female and 40 male). The Sharpened Romberg Test was used for static balance, while timed up and go test, Tandem walk test, and Y test were used for ...

ژورنال: کومش 2022

Introduction: Knee osteoarthritis is one of the most prevalent musculoskeletal disorder which can contribute to decrease in daily life balance.This study is carried out to compare the effects of aerobic walking and strength training programs on improving balance in women with osteoarthritis. Materials and Methods: Forty women with knee osteoarthritis were assigned randomly into two experimental...

Journal: :سالمند 0
سپیده جنتی sepideh jannati ferdowsi university of mashhad mashhad,iranدانشگاه فردوسی مشهد مهدی سهرابی mehdi sohrabi ferdowsi university of mashhad mashhad,iranدانشکده تربیت بدنی و علوم ورزشی دانشگاه فردوسی مشهد سید ضا عطارزاده حسینی reza attarzadeh hoseini ferdowsi university of mashhad mashhad,iranدانشگاه فردوسی مشهد

objectives: the aim of current study was to determine the effects of hata yoga training on dynamic and static balances of elderly women in mashhad. methods and materials: the present study enjoys the semi-experimental design. the statistical population of the study, which has been carried out in 2009, were elderly women of mashhad who were voluntarily invited to participate in the research. 29 ...

Journal: :Mechanics of Advanced Materials and Structures 2021

This paper communicates an analytical study on computing the natural frequencies and in-plane deflections caused by static forces in panel walls using Euler-Bernoulli, Timoshenko, Timoshenko Goodier, Couple-stress, Micropolar-Cosserat theory. The highlights formulation of transfer matrix via state-space method spatial domain; from coupled governing equations motion that arises theory captures n...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1376

‏‎‏‎utopia has, for four centuries, accompanied that hope of progress and that striving for betterment. it now straggles against a widespread sense that this has been an illusion, or an impossible dream. the utopian idea can never entirely disappear, but utopia as a form of the social imagination has clearly weakened. if it cannot instill its vision in the public consciousness, the consequences...

Journal: :مکانیک سیالات و آیرودینامیک 0
سید حسین موسوی فتح¬اله امی

in this study a nonlinear asymmetric instability analysis carried out to study primary atomization of annular liquid sheets emanating from the prefilming airblast atomizer using a perturbation method and potential flow assumption. in this direction, firstly governing equations derived according to potential flow assumption and conservation equations while dynamic and static boundary condition a...

Roshandel Hesari, Ali , Roshandel Hesari, Amin ,

Objective: This study aimed to investigate the static and dynamic balance in basketball students with an ankle injury history. Methods: Subjects of this study were 36 elementary school basketball male students who participated in this study purposefully and voluntarily. Subjects were divided into two groups of 18 people with an ankle injury and the control group without ankle injury. To measur...

ژورنال: Physical Treatments 2020

Purpose: The growing popularity of media devices such as smartphones and computers has made humankind to acquire forward head posture increasingly. This study aimed to compare static and dynamic postural stability between people with and without forward head posture. Methods: 15 male students with normal posture (24±4 years, 173±6 cm and 70±6 kg) and 15 male students with forward head posture ...

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