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two-partition
相关语句
  2—划分
     Let X~* be the free monoid generated by an alphabet X and {B_1,B_2} be an arbitrary two-partition on X,C=B_2∪B_1X~N.
     设X*是由字母表X生成的自由幺半群,{B1,B2}是X的任意2—划分,C=B2∪B1XN。
短句来源
  相似匹配句对
     Two.
     二.
短句来源
     Two.
     二、末日意识
短句来源
     Two results on g-functions
     关于g-函数的两个结果
短句来源
     Partition Algorithm and Its Implementations
     Partition算法及其实现
短句来源
     Implementations of PARTITION Algorithms
     PARTITION算法的实现
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In this paper,we Introduce two partitions of the set of idempotentelements of rank one in a primitive ring with non-zero socle,and applythem to show the strncture of primitive rings with non zero socles.

本文提出了含非零基座本原环的全体秩等于1的幂等元的两种分类,据此进一步揭示了此类本原环的结构.

series of progress on the cytological and blochemlcal studles of anglosperm gametes the been made, lncluding the lsolation,characterlzation and in vitro fuslon of the aperm and egg cells. The availability of the isolated gametes from anglosperm plants has opened up broad prospects for establlshing the maniputation,systerm of in vitro fertilazation and atudying the mechanism of recognition,and fusion between gametes of opposite sexAllempts have been made to find the specific surface protelns All these studies...

series of progress on the cytological and blochemlcal studles of anglosperm gametes the been made, lncluding the lsolation,characterlzation and in vitro fuslon of the aperm and egg cells. The availability of the isolated gametes from anglosperm plants has opened up broad prospects for establlshing the maniputation,systerm of in vitro fertilazation and atudying the mechanism of recognition,and fusion between gametes of opposite sexAllempts have been made to find the specific surface protelns All these studies will contrlbute a better understanding of the reconnition mechanism.The technique of purlfication of plasma membrane from large quanties of viable isolated gametes remains to be improved. In author. opinion. the aqueous polymer two-partition system could be used to solve this problem.

近年来.被子植物雌雄配子的细胞学与生物化学研究取得了一系列重要进展.包括精卵细胞分离纯化、活力保持与检测技术的建立、形态的构观察、生化特性分析及人工体外融合成功,等等.这些进展为创建体外受精操作系统及探讨受精识别机理提供了可能性.被子植物双受精过程存在多位点识别.有关配子水平识别的研究刚刚起步,主要是通过不同途径寻找雌雄配子表膜特异蛋白.其中质膜的纯度与数量问题亟待解决.

The kinetics behavior of styrene emulsion polymerization initiated by lauroyl peroxide (LPO)-N,N-Dibutylaniline(DBAN)was investigated thoroughly.The variation of the polymerization rate,the number of polymer particles and the polymer molecular weight produced in emulsion with the changes of initiator LPO,DBAN concentration were determined.From these experimental results it is found that the limiting conversion which the polymerization can attain is determined by the initial ratio of one cocatalyst to the other...

The kinetics behavior of styrene emulsion polymerization initiated by lauroyl peroxide (LPO)-N,N-Dibutylaniline(DBAN)was investigated thoroughly.The variation of the polymerization rate,the number of polymer particles and the polymer molecular weight produced in emulsion with the changes of initiator LPO,DBAN concentration were determined.From these experimental results it is found that the limiting conversion which the polymerization can attain is determined by the initial ratio of one cocatalyst to the other and the appearance polymerization rate is composed of two partition which take place in polymer particles and monomer droplets.The polymerization rate is also directly proportional to LPO,DBAN concentration.and the number of polymer particles increase with the increase of LPO,DBAN concentration.The polymer molecular weight produced decrease with the increase of LPO,DBAN concentration.

 本文详细地研究了过氧化月桂酰胺(LPO)/N,N- 二丁基苯胺(DBAN) 引发苯乙烯乳液聚合反应的动力学行为。检测了聚合反应速率,聚合物粒子数,以及聚合物的分子量随引发剂DBAN/LPO比率的变化。分析这些实验结果,从中发现聚合反应的极限转化率取决于DBAN/LPO 的比值,表观聚合反应速率是由发生在聚合物粒子中和在单体液滴中的聚合反应两部分组成。聚合反应总速率取决于DBAN/LPO 的比值。聚合物粒子数随DBAN/LPO 的比值的增加而增加。而且聚合物的分子量则随DBAN/LPO 的浓度增加而减少。并且也讨论了在该反应系统中的聚合物分散指数PDI的变化,和聚合物粒子的成核机理及影响粒子分散度的原因

 
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