نتایج جستجو برای: dynamic and static efficiency
تعداد نتایج: 16940789 فیلتر نتایج به سال:
in methods presented to calculate the voltage collapse point, the transmission system is usually the only part of the power system that is completely modeled. distribution systems are often replaced by aggregate load models because the use of the detailed model of distribution systems in voltage stability analysis not only increases the computation time, but also decreases the probability of co...
In the present paper, the focus is on the evaluation of steel dual-system frame buildings using four main types of structural analysis (Linear Static, Linear Dynamic, Nonlinear Static and Nonlinear Dynamic Analyses) with regard to "Seismic Rehabilitation Code for Existing Buildings in Iran" (based on FEMA 273 and 356) where the first two authors of the article tend to follow the previous work (...
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 ...
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...
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...
Background: One of the most important factors in the proper functioning of the military is the accurate assessment of feedback. Among these, the proper knee joint Proprioception is one of the most important factors in this regard. This study was performed to Evaluation of knee joint Proprioception Changes in military forces following a period of a static and dynamic stretching of hamstrings, qu...
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...
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 ...
Determination of the pile capacity is always a major concern for the safe geotechnical engineering design. Different direct and indirect methods have been proposed for determining pile bearing capacity such as static and dynamic approaches. Each method depends on the condition of the soil and type of pile as well as accessibility to necessary information. In this study bearing capacity of drive...
Load modeling is widely used in power system studies. Two types of modeling, namely, static and dynamic, are employed. The current industrial practice is the static modeling. Static modelss are algebraic equations of active and reactive power changes in terms of voltage and frequency deviations. In this paper, a component based on static modeling is employed in which the aggregate model is deri...
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