A tentative study on the oxidation of propane to acrylic acid ( AA) and acetic acid ( HAc) by lattice oxygen on VPO catalyst was carried out using a pulse reactor in which the oxidation of propane and the regeneration of catalyst took place alternatively. 用脉冲反应器研究了VPO催化剂用于丙烷晶格氧选择性氧化制丙烯酸(AA)和乙酸(HAc)的可行性。
Currcnt-type four quadrant converter is an AC-DC converting device with pulse width modulation, whose advantages are high power factor, low harmonic current and convenient regeneration etc. 电流型四象限变流器是一种脉冲宽度调制的交直流变换装置,具有功率因数高、谐波电流小、再生方便等优点。
Simulation and experiment of wall-flow diesel particulate filter with reverse pulse air regeneration 柴油机过滤体逆向喷气再生系统的模拟与试验研究
In city construction planning, only put these ancestral halls and remains of the historical and cultural sites combined with city planning and design, the old and new town to the pulse of the phase inter-promoting rate, make the fracture of the lost memory for regeneration. 在城市建设规划中,唯有把这些祠堂建筑遗址和遗迹历史文化结合城市规划设计中去,才能将老城和新城的脉搏相生相息,使得断裂的失落的记忆获得重生。