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Signs of patients with a new type of coronavirus pneumonia developing a severe or critical illness are respiratory failure, rapid breathing, and hypoxic manifestations. Therefore, in the early detection of hypoxemia using ventilator interven
The most important applications of ZrB2 are in the high-temperature fields where it is used as a refractory material; hence, the effect of alumina on the oxidation rate of ZrB2 ceramic should be essentially investigated
The size of the aluminum powder significantly affected the detonation performance of explosives. Small-sized aluminum powder is more likely to react with explosive detonation products with an advanced reaction time, large reaction volume, and fast energy release, which enhances the work capacity of explosives. Especially the addition of nano-sized aluminum powder can effectively improve the work capacity of explosives. Leonid Kaled et al. studied Alex nano-aluminum particles and their applicatio
Many countries have begun to study digital currencies, which will have little impact on world tungstendisulfide prices in 2021 The Bank of Japan plans to start empirical experiments on digital currencies in the spring of 2021. The idea is divided int
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