نتایج جستجو برای: motion
تعداد نتایج: 213109 فیلتر نتایج به سال:
Background and purpose: Reports of pattern motion between lumbar spine and hip vary for stoop, loading conditions or the pathology present, such as chronic back pain. Therefore, the purpose of this study was to compare the relative contribution of the hip joint and lumbar spine during stoop lifting in subjects with and without a history of low back pain. Materials and Methods: This clinica...
In some aerospace vehicles, the tracking sensors which act in a tracking loop as stabilizer are mounted on a two degree of freedom gyro. The gyro must align its rotor axis with the line of sight in order to remove tracking errors. The tracking precision and sensitivity are functions of the gyros performance. One of the main factors in reducing the precision and producing instabilities is nutati...
Air-jet weaving is an advanced weaving method with high efficiency and productivity. It is one of the most widely used methods of weaving in the world. In air-jet filling insertion, the motion of weft yarn is caused by friction between weft yarn and air blown through nozzle. After declamping and subjecting the yarn to air stream, its motion is not active but very complicated and influenced by ...
According to progress of technology during the recent decades, video transmission through a wireless channel has found high demands. In this field, several methods have been proposed to improve video quality. Appearing error in motion vector values is one of the most important factors which can affect the video quality. In case of creating errors in motion vector, the synthesized video frames a...
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