One of effective ways of overcoming space charge effect is to fill plasma in high power wave apparatus , by the neutralization between plasma and space charge , the transfer current is going to be largely enhanced , thereby out - power is going to be largely increased . meantime , due to there are many fluctuating modes in plasma , so it is able to bring a new beam - wave interaction mechanism , by it people can invent some new type high power microwave apparatus 高功率微波装置中的电流密度很大,空间电荷效应强烈,影响了功率的提高,克服空间电荷效应的有效方法是在高功率微波器件中填充等离子体,由于等离子体对空间电荷的中和作用,传输电流会大大提高,从而大幅度提高输出功率,同时由于等离子体中存在多种波动模式,有可能带来新的注波互作用机制,发展新型的高功率微波器件。
Aluminum coagulation pretreatment enhances the uf removal of ha and greatly ameliorates the effect of ha on the membrane flux decline . at ph = 7 . 0 the mechanism is adsorption of ha on the amorphous solid - phase al ( oh ) _ 3 ( s ) , while at ph = 5 . 0 the mechanism is charge - neutralization . in terms of the removal of ha ( toc , uv _ ( 254 ) ) and the membrane flux decline , the effect of coagulation under ph = 7 . 0 condition turns out to be much better than that under the condition of ph = 5 . 0 Ph = 7 . 0条件下的混凝预处理机理主要是铝盐高分子水解产物对腐植酸的吸附网捕作用, ph = 5 . 0时的机理主要是带正电荷低分子铝盐水解产物吸附电中和作用,从toc和uv254的去除率以及膜渗透通量的变化情况来看, ph = 7 . 0条件下的混凝预处理优于ph = 5 . 0 。