نتایج جستجو برای: including static and dynamic
تعداد نتایج: 16915785 فیلتر نتایج به سال:
Abstract In this paper, the effect of strain rate sensitivity of materials in the case of a fully clamped circular plate has been discussed introducing a new criterion called "dynamic to static collapse pressure ratio". In order to do so, a simple mass and wire model is assumed. Then, using Cowper-Symonds constitutive relation and Perrone-Bhadra Simplifications, the mean strain rate of su...
In this paper, static and dynamic behavior of a varactor of a micro-phase shifter under DC, step DC and AC voltages and effects of the residual stress on the phase diagram have been studied. By presenting a mathematical modeling, Galerkin-based step by step linearization method (SSLM) and Galerkin-based reduced order model have been used to solve the governing static and dynamic equations, resp...
Objectives: Joint supporters can caused increasing proprioceptive information. Such proprioceptive information is needed for balance. The purpose of this study was to determine the effect of soft knee support on static and dynamic balance tests in male elderly (65 years and older). Methods & Materials: Via a randomized clinical trial study design, 22 elderly were selected and divided into tw...
Introduction: Balance in the elderly is one of the important issues, and imbalance can create irreparable problems for the elderly. The aim of this study was to investigate the effect of Frenkel balance exercise and aerobic exercise (walking) on improving the balance of elderly patients in Kerman province in 2016-2017. Methods: We used a randomized block design, with 4 participants in each ...
increasing academic and professional language demands around the world are not a deniable fact. the purpose of this study was to investigate english language needs and communication needs of the chemistry students at master and ph.d. levels at the iranian universities. in this research, different methods were used including un-structured interview, structured interview, and two sets of question...
conclusions it seems that plantar changes have insignificant effect on static and dynamic indices evaluated by the biodex balance system. objectives the current study aimed to evaluate the relation between these structural characteristics and balance indices. patients and methods the study population was 100 male and female students from semnan university of medical sciences, semnan, iran. to e...
The objective of the present study was to examine the effect of endurance exercises on static and dynamic endurance of back extensor muscles in two genders. This study with quasi-experimental repeated measure design was conducted on 20 men and 20 women as non convenience sampling. Dynamic and static back extensor tests were used for endurance measurement and following exercises, repeated measu...
As part of the development of equipment and innovative technology for the process flow-sheet, a study on the selection of good resin for uranium uptake is ongoing. Both static and dynamic column equilibrium testing upon synthetic and Gattar pregnant leach solutions (PLS) were carried out to estimate the change of total capacity and breakthrough capacity of the commercial macroporous anion excha...
Objective: The effective variables in maintaining balance come from sensory information that is obtained from sensory-visual, vestibular and visual systems, and is affected by coordination, range of motion and muscle strength. The purpose of this study was to investigate the relationship between neuromuscular mechanisms and the static and dynamic balance of soccer players. Methods: In an analy...
one of the methods for the improvement of soil against the tensile stresses is using the artificial supplements in soil such as metal belts or nets, polymer materials and natural fibers. technically this method is called the reinforced of soil. when a pavement is located on soft soil, great deformations can occur as a result of the crossing of traffic load in superstructure layers of the body....
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