体外受精-胚胎移植技术（invitro fertilization and embryo transfer,IVF-ET）是指从妇女卵巢内取出卵子,使之在体外与精子发生受精并培养3-5d,再将发育到卵裂期或囊胚期的胚胎移植到宫腔内,使其着床发育成胎儿的过程。收集卵母细胞（...体外受精-胚胎移植技术（invitro fertilization and embryo transfer,IVF-ET）是指从妇女卵巢内取出卵子,使之在体外与精子发生受精并培养3-5d,再将发育到卵裂期或囊胚期的胚胎移植到宫腔内,使其着床发育成胎儿的过程。收集卵母细胞（简称取卵）是IVFET过程中的一个重要步骤,直接对IVF-ET的结局产生影响[1]。展开更多
Using the variable transformation method,the formulae of the axial symmetrical wall temperature distribution during steady heat conduction of a hollow cylinder are derived in this paper.The wall temperature distributi...Using the variable transformation method,the formulae of the axial symmetrical wall temperature distribution during steady heat conduction of a hollow cylinder are derived in this paper.The wall temperature distribution and the wall heat flux distribution in both axial and radial direction can be calculated by the temperature distribution of the liquid medium both inside and outside the cylinder with temperature changing in axial direction.The calculation results are almost consistent with the experience results.The applicative condition of the formulae in this paper consists with most of practice.They can be applied to the engineering calculation of the steady heat conduction.The calculation is simple and accurate.展开更多
文摘体外受精-胚胎移植技术（invitro fertilization and embryo transfer,IVF-ET）是指从妇女卵巢内取出卵子,使之在体外与精子发生受精并培养3-5d,再将发育到卵裂期或囊胚期的胚胎移植到宫腔内,使其着床发育成胎儿的过程。收集卵母细胞（简称取卵）是IVFET过程中的一个重要步骤,直接对IVF-ET的结局产生影响[1]。
文摘Using the variable transformation method,the formulae of the axial symmetrical wall temperature distribution during steady heat conduction of a hollow cylinder are derived in this paper.The wall temperature distribution and the wall heat flux distribution in both axial and radial direction can be calculated by the temperature distribution of the liquid medium both inside and outside the cylinder with temperature changing in axial direction.The calculation results are almost consistent with the experience results.The applicative condition of the formulae in this paper consists with most of practice.They can be applied to the engineering calculation of the steady heat conduction.The calculation is simple and accurate.
