The simulation results show that the powder density,the logarithmic strain ratio(LSR ) and their distribution uniformity decrease with the increase of the friction coefficient.
模拟结果表明:随着摩擦系数的增大,超导芯的粉体密度和对数应变比(LSR)均降低,且分布均匀性减弱;随着压下率的增加,超导带材的横向应变和纵向应变均增大,超导芯内的粉体密度和LSR值随之增加;同时,大辊径轧制有利于提高超导芯内粉体材料的密实度,并使得LSR值逐渐减少,但前后张力对超导芯变形的影响较小。
The new sugar beet triploid variety with anther culture-Zhongtian huapei1(original combination code91-5-1),crossed with male homozygous diploid which came from unpollinated ovule of K-5and female tetraploid plant C-87.
甜菜花培新品种—中甜花培1号(原组合代号91-5-1)是以K-5的未授粉胚珠培养得到的纯合二倍体株系作父本,与四倍体品系C-87作母本杂交育成的花培三倍体新品种。
The regenerated plants of monosomic addition line M14 of sugar beet wasacquired from unpollinated ovules, and then genetic relationship between theregenerated plants and the parental plants was analyzed by performing AFLP, thus themode of reproduction of M14, obligate apomixis or facultative, was identified by meansof molecular biology.
利用甜菜单体附加系M14品系未授粉胚珠培养获得再生植株，采用AFLP技术分析再生植株与亲本植株之间的亲缘关系，从而用分子生物学手段鉴定M14品系的生殖方式是专性无融合生殖还是兼性无融合生殖。