نتایج جستجو برای: median frequency
تعداد نتایج: 623143 فیلتر نتایج به سال:
in this paper, a novel decision based median (dbm) filter for enhancing mr images has been proposed. the method is based on eliminating impulse noise from mr images. a median-based method to remove impulse noise from digital mr images has been developed. each pixel is leveled from black to white like gray-level. the method is adjusted in order to decide whether the median operation can be appli...
in this study which was carried out in 1974 in isphahan, 3,000 married women between the ages of 15 to 44 who were the residents of the city of isphahan and a similar group of women who were residents of the villages surrounding the city were interviewed. results indicate that the average and the median of age at the first marriage had been increasing steadily since 1959 for the city women and ...
introduction: median nerve (mn), one of terminal branches of brachial plexus, is commonly associated with several variations. this research aimed to review the literature related to the variations of mn from axillary region to cubital fossa. methods: we searched google scholar, science direct, springer, and pubmed electronic databases to compile reports related to the variation of mn published ...
A radiotelemetry system has been used to monitor gastro-oesophageal reflux over a prolonged period in 27 asymptomatic control subjects and in 15 patients with reflux symptoms. In control subjects, the frequency of reflux episodes (pH < 5) ranged from 0.1 - 0.7 per hour of recording (median 0.36) by day, and from 0 - 1.0 per hour (median 0.12) by night. The duration of reflux (pH < 5) per hour o...
Introduction: Today, computers are widely used in many homes and workplaces. The relationship between computer use and musculoskeletal disorders in the neck and upper extremities has been well documented. Muscle fatigue in the shoulder and arm regions is one of the most frequently reported problems in computer users. Supporting the upper extremities has been suggested as a way to re...
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