نتایج جستجو برای: peak
تعداد نتایج: 141599 فیلتر نتایج به سال:
introduction: ramadan is the 9th islamic lunar month during which muslims avoid eating and drinking from sunrise to sunset. the effect of ramadan intermittent fasting on asthma control is controversial. the aim of this study was to investigate the effects of ramadan fasting on the spirometric variables and clinical symptoms on well-controlled asthmatic patients during ramadan. material and m...
ground vibrations caused by blasting are undesirable results in the mining industry and can cause serious damage to the nearby buildings and facilities; therefore, controlling such vibrations has an important role in reducing the environmental damaging effects. controlling vibration caused by blasting can be achieved once peak particle velocity (ppv) is predicted. in this paper, the values of p...
a linear superposition method was used for modeling the time history of the production blast vibrations and optimizing the blast sequence to reduce vibration levels in sar-cheshmeh copper mine, kerman, iran. a single-hole blast for modeling and two double-hole blasts with time delays of 25 and 65 ms between two holes for modeling validation were carried out. the generated vibrations were measur...
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