نتایج جستجو برای: low satellite
تعداد نتایج: 1270589 فیلتر نتایج به سال:
A constellation configuration performance evaluation method is proposed for the of low-orbit large-scale communication satellite constellations. The practicality and feasibility analysis mainly studied from coverage performance. Based on consideration LEO constellation, four simulation models are established single rate, observation elevation angle, number visible satellites under different ang...
INTRODUCTION Muscle stem cells termed satellite cells are essential for muscle regeneration. A central question in many neuromuscular disorders is why satellite cells are unable to prevent progressive muscle wasting. We have analyzed muscle fiber pathology and the satellite cell response in Pompe disease, a metabolic myopathy caused by acid alpha-glucosidase deficiency and lysosomal glycogen ac...
Background and purpose: Communication technologies have a dual effect on human health and life. In fact beside their major role in improving human well-being, they also have harmful consequences. This research aimed at studying media technologies and their relationship with health related quality of life in students. Materials and methods: In this cross-sectional study, a total of 567 high sch...
The major aim of processing satellite images is to prepare topical and effectivemaps. The selection of appropriate classification methods plays an important role. Amongvarious methods existing for image classification, artificial neural network method is ofhigh accuracy. In present study, TM images of 1987, and ETM+ images of 2000 and 2006were analyzed using artificial fuzzy ARTMAP neural netwo...
The Great Khorasan in northeast Iran has a variety of surface structures and plains and high peaks, but due to its vicinity to the deserts of Afghanistan and Turkmenistan, it is affected by dust all the time, especially in summer. The purpose of this study was to simulate summer dust in this region by RegCM model. For this purpose, during the period 2000 to 2017, three extreme dust events were ...
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