نتایج جستجو برای: dynamic and static efficiency
تعداد نتایج: 16940789 فیلتر نتایج به سال:
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....
Introduction: Lymphoscintigraphy is imaging of the lymphatic system and has been integrated into the sentinel node mapping procedures. Lymphoscintigraphy usually encompasses early or delayed static images. However, immediate dynamic imaging of the lymphatic basins and tumors has also been used as an adjunct lymphoscintigraphy imaging. The aim of this study was ...
torque, speed, and power as mechanical variables are associated with the functional performance of any rotating machinery. the real-time performance and the efficiency of a machine can be determined with on-line measurement of these parameters. in this investigation a rotary torque meter (transducer) was constructed from strain gauge sensors for measuring the torque of rotating shafts. the syst...
Objectives: Falling is a main cause of mortality in elderly. Balance training exercises can help to prevent falls in older adults. According to the principle of specificity of training, the perturbation-based trainings are more similar to the real world. So these training programs can improve balance in elderly. Furthermore, exercising in an aquatic environment can reduce the limitations for ba...
Review: Purpose. Practice in today's health care center is recommended for patients with back pain and many researchers agree that the issue of the proposed stabilization exercise training in chronic pain conditions Mackenzie workouts with acute conditions, back pain the most appropriate option be. within the influence of the electric current applied to the treatment of back pain, however, is ...
Background and Aim: Wearing high-heeled shoes increases the height of the center of gravity and takes the line of gravity away from the center of the base of support. This may result in the loss of body balance. In this study the effect of 3 heel heights on the static and dynamic postural stability in healthy young women was investigated. Materials and Methods: In this cross-over quasi-experim...
Background: This study aimed to investigate the impact of neuromuscular exercises (NE) and local-indigenous games (LIG) on the static and dynamic balance of obese children. Methods: Thirty obese children were randomly assigned to NE (n=15, mean age 10.47 ± 2.1 years, body mass index 29.15 ± 3.01 kg/m2) or LIG (n=15, mean age 10.67 ± 1.52 years, body mass index 29.45 ± 3.41 kg/m2) groups. Both ...
The determination of structural and nonstructural damage under earthquake excitations is usually considered as a key factor in performance-based seismic design (PBSD) methods is In this regard, various damage indices have been developed in recent years to quantitatively estimate structural damage. The aim of this study is to develop a simple method to evaluate performance levels of zipper-brace...
The operating principle of condensing boilers is based on exploiting heat from flue gases to pre-heat cold water at the inlet of the boiler: by condensing into liquid form, flue gases recover their latent heat of vaporization, leading to 10e12% increased efficiency with respect to traditional boilers. However, monitoring the energy efficiency of condensing boilers is complex due to their nonlin...
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