亚麻纤维长度及分裂度与粗纱煮漂工艺的关系

本文就亚麻纤维长度的分布及分裂度与煮漂工艺的关系进行了试验性的探讨。     

论无丝分裂

论述了无丝分裂的方式，发生无丝分裂的生物体组织，无丝分裂过程中遗传物质的变化，无丝分裂在细胞增殖中的作用及生物学意义。     

Genetic insight of the H5N1 hemagglutinin cleavage site

The cleavability of the hemagglutinin (HA) plays a major role in virulence of avian influenza viruses. Detailed analyses of the cleavage sequences and their evolution would give insights into the high pathogenicity of the H5N1 virus. HA segments were visually identifiable in the cellular automata (CA) image, and a feature gene segment (FGS) was only found in H5N1 rather than any other subtype. This FGS is a 30-bp gene segment mainly consisting of ‘A’ and ‘G’. When translated into amino acids the FGS converted into a sequence of mainly basic amino acids with positive charges. This feature amino acid segment (FAAS) was located in the cleavage site loop of HA which was potentially cleavable by various proteases. The 3D structure of H5N1 HA was reconstructed using homology modelling. It was found that the cleavage site loop was well exposed to potential proteases. The molecular surfaces were reconstructed to study how mutation and deletion of some amino acids in the FAAS affected the charge distribution. It was found that some mutations had severely changed the landscape of the charge dis- tribution. Statistical analyses of FAAS were made with respect to when and where the H5N1 viruses were found. In 2005, there were less un-mutated FAAS than the other years according to temporal evolution, and more mutated FAAS appeared in China than other regions according to geographic dis- tribution. These results are helpful for exploring the evolution of virus high pathogenicity.     

光抽运现象及其应用

从理论上分析了光抽运的原理，介绍了获得和测量光抽运信号的方法，并讨论了光抽运在测量郎德因子和地磁场中的应用。     

预条件SOR方法收敛性比较

在2001年,Evans等人在文献[1]（D.J.Evans,M.M.Martins,M.E.Trigo.The AOR method forpreconditioned liner[J],J.Com.App.Math,132（2001）：461-466）中讨论了在预条件子P=（I＋C）作用下的预条件AOR方法,文章将讨论在预条件子P=（I＋S）作用下的预条件SOR与经典的SOR方法的收敛速度之间的关系,这里,S由A的上三角矩阵每行的最后一个元素组成。     

矛盾与悖论:巴赫金的《镜中人》

以巴赫金的《镜中人》为切入点对巴赫金哲学美学思想中自我意识的内部分裂与区分的问题,以及相关疑难进行剖析与澄清。     

完全分裂群的若干结果

通过分析完全分裂群的构造,发现其可表示为互异特征单群之直积,且表示法唯一.借助于研究各类特征单群的子群构造特点,求出了完全分裂群的子群个数以及该群分解成单因子直积表写方法的数目,并给出了相应的计算公式.     

试论“九一八”到“七七”国共关系的演变

从“九一八”事变到“七七”事变，随着中日民族矛盾的不断激化，在较大范围上规定了中国社会政治格局向着有利于抵抗日本侵略的方向演变。作为当时左右中国政局的国共两党，也必然顺着这一历史潮流而动。在此期间，国共两党由分裂走向联合，由对抗走向合作的曲折历史过程，是国共关系史上极为重要的一页。总结其中的经验教训，有着重要的历史意义和现实意义。     

素理想（3）在Q（μ1／3）中的分解

设Ｑ为有理想数域，令ψ为由素数３生成的有理数域Ｑ的３－ａｄｉｃ赋值，ｒ为与其相对应的赋值环，（３）为ｒ的极大理想，讨论了素理想在Ｑ的三次根扩张Ｑ（μ１／３）（μ∞ｒ）中的分解问题，并完全解决了该问题。