It was found that there are lower pressure drop and better distribution in the radically variable cell diameter converter and the inlet loss of catalytic converter may be neglected when the velocity in cell passage is low 結(jié)果發(fā)現(xiàn),三效催化器微元通道孔徑沿徑向的不同組合可以達(dá)到既不增加壓降、流速分布又均勻的效果,而且在所計(jì)算的軸對(duì)稱三效催化器結(jié)構(gòu)中,在通常的流量范圍內(nèi)其進(jìn)口損失可以忽略。
The extracellular matrix plays important roles in the cell behavior in vitro and in vivo . matrigel were widely used to induce differentiation of variable cell types . cultured in the matrigel , the cells aggregated together and formed tube - like structure 將培養(yǎng)的lepcs接種于鋪有matrigel基質(zhì)膠的培養(yǎng)皿后,細(xì)胞很快聚集成團(tuán)并向四周放射狀生長(zhǎng)出許多管狀結(jié)構(gòu),在電鏡下可觀察到細(xì)胞團(tuán)中包括膽管樣結(jié)構(gòu)。