Electromechanical braking system is the key way to improve the braking response ability of mine hoist.At present, the reliability research of electromechanical braking system is less.In order to further analyze and improve the reliability of electro-mechanical braking system, this paper adopts the reliability analysis method of electro-mechanical b
Abstract Background Several health determinants are related to local conditions and prerequisites at community level.For this reason, strengthening community action has been one of five strategies implemented in health promotion since the end of the 1980s.Such action includes setting priorities, making decisions, planning strategies, and implementi
The lsu tote bag influence of stirring speeds of 1000 and 1500 r/min on the microstructure of Al18SiCuMg alloy was investigated.The smaller size of Si particles of rheocast sample obtained by higher cooling rate and higher stirring speed was achieved.According to the results of cavitation test, the cavitation rate of the rheocast sample produced by