نتایج جستجو برای: median frequency
تعداد نتایج: 623143 فیلتر نتایج به سال:
abstract the supracondylar process is a beak-like bony projection that arises from the anteromedial surface of the humerus. the process has rarely been associated with compression of the median nerve and seldom requires treatment. we report a case of a supracondylar process that caused tenting of the median nerve with elbow extension and pronation.
This paper presents a new approach for region-based video mosaicing, treating moving objects separately from the background, and with improved ghost-like noise elimination. The mosaic images show the moving objects superimposed over a stationary background. Conventional technologies can reduce the ghost-like noise that occurs from moving objects by using temporal median filtering, but its effic...
BACKGROUND Heart rate variability (HRV) has been used as a measure of stress and mental strain in surgeons. Low HRV has been associated with death and increased risk of cardiac events in the general population. The aim of this study was to clarify the effect of a 17-hour night shift on surgeons' HRV. METHODS Surgeons were monitored prospectively with an ambulatory electrocardiography device f...
a few numbers of patients admitted to the emergency department due to the lunate dislocation can cause a direct injury to the wrist ligament, which mainly occurs after wrist trauma, and often diagnosis is far from the mind. a 32 years old man due to severe pain and tenderness of the wrist started the previous day during swimming, referred to emergency department of imam reza hospital of mashhad...
median cleft is the midline cleft of the lip. it develops due to incomplete or failed fusion of the median nasal prominence. it can present with minimal deformities such as involvement of the vermilion border, or complex clefting of the midline structures and brain. median clefts are broadly classified as true and false clefts. this case report describes a rare case of median cleft of the upper...
The article analyzes and calculates informative parameters of surface electromyographic signals (sEMS), which can be used to control biotechnical systems, as well diagnose the state musculoskeletal system. analysis in time frequency-time domains signal are considered. A program has been developed for calculating indicators indicated areas. is implemented LabVIEW environment. To analyze sEMG dom...
Descriptive statistics is the process of summarizing gathered raw data from a research and creating useful statistics, which help the better understanding of data. According to the types of variables, which consist of qualitative and quantitative variables, some descriptive statistics have been introduced. Frequency percentage is used in qualitative data, and mean, median, mode, standard deviat...
This paper presents a modified digital image watermarking method based on nonnegative matrix factorization. Firstly, host image is factorized to the product of three nonnegative matrices. Then, the centric matrix is transferred to discrete cosine transform domain. Watermark is embedded in low frequency band of this matrix and next, the reverse of the transform is computed. Finally, watermarked ...
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