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In this paper, we use high temperature solid phase method synthesize SrLa2−xZnO5: Eux series red phosphor at the condition of 1200 °C and 6h burning. From the PL test, we can obtain the following conclusions: the red phosphor series with rule morphology, size is about 1 ∼ 3µm; and is a broadband excitation phosphor material, the strongest sharp excitation and emission peak at 465nm and 625 nm respectively,...
According to the distribution of faults in coal face, deep-hole loose blasting scheme is formulated and vibration monitoring is conducted. Obtained seismic wave attenuation rule of deep-hole loose blasting, HHT method is adopted for vibration signal decomposition to research the characteristic of spectrum and the energy distribution of the signal. Research results show that seismic wave propagation...
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