尼龙1010／6力学性能与组成关系研究

通过尼龙１０１０／６共聚物单轴拉伸应力－应变曲线，研究了该系列共聚物的力学性能与组成的关系。发现两种共聚组分重量比接近６０：４０时，杨氏模量、弯曲模量及屈服应力较小，而相应的屈服应变、断裂应变及断裂能较大。     

Active regions’ setting of the extracellular ligandbinding domain of human interleukin-6 receptor

The reliable three dimensional (3-D) structure of the extracellular ligand-binding domain (V106-P322) of human interleukin-6 receptor (hIL-6R) has been constructed by means of computer-guided homology modeling techniques using the crystal structure of the extracellular ligand-binding region (K52–L251) of human growth hormone receptor (hGHR) as templet. The space location of some key residues which influence the combination ability between the receptor and the ligand has been observed and the effects of point mutagenesis of the four conservative cysteine residues on the space conformation are analyzed. The results show that the space conformation of the side-chain carboxyl of E305 plays a key role in the ligand-binding ability. Furthermore, the space conformation of the side-chain carboxyl of E305 is very important for the electrostatic potential complementarity between hIL-6R and hIL-6 according to the docking method.     

三氯偶氮氯膦-铁(Ⅲ)-溴酸钾催化光度法测定微量铁

在硫酸介质中，微量铁（Ⅲ）对2，4，6－三氯偶氮氯膦的褪色反应有明显的催化作用，确定了最佳反应条件，建立了测定微量铁的催化分光光度新方法，铁在0－6μg/L范围内符合比尔定律，检测限为3．3μg/L，用于大米和活性炭样品中的微量铁的测定，结果满意。     

二元羧酸脱羰端烯化反应研究

研究了壬二酸和癸二酸在催化量的双三苯基膦二氯化钾催化下的脱羰反应，考察了反应温度，醋酐用量以及催化剂用量对反应的影响，首次实现催化量的双三苯基膦二氯化钯－三苯基膦催化体系对壬二酸和癸二酸脱羰得到相应的1，6－庚二烯和1，7－辛二烯。     

用Matlab分析静定结构有限元法

Matlab经过多年的发展与完善,已成为科学与工程计算的重要工具.而有限元方法作为近似求解边值同题的一种数值技术,也广泛应用于数学和工程问题.对有限元的原理和Matlab编程步骤进行了阐述,并用实例证明了用matlab语言编程分析静定结构更为有效、精确.     

Matlab与InTouch间直接通讯的实现

为解决以往Matlab与InTouch间数据通讯必须利用第3方软件进行接口编程的难题,在对Matlab和InTouch软件所提供的DDE接口研究的基础上,以Matlab为客户端、InTouch做服务器,在Matlab环境下,基于DDE技术分别用M文件和S函数两种不同的方法,首次实现了Matlab和InTouch之间的直接通讯.文中给出了用于实现Matlab和InTouch之间直接通讯的M文件和S函数的实例.实例证明,两种方法实现方便,并能支持多输入多输出模型的数据交换.     

基于IMS的IPv4与IPv6互连中的双协议栈技术

为实现基于IMS的IPv4到IPv6的长期平滑过渡,探讨了将双协议栈技术应用于基于IMS的IPv4与IPv6互连。比较权衡几种目前相关过渡期的技术,论证了将双协议栈技术应用于基于IMS的IPv4与IPv6互连中,相对于其他相关过渡技术,具有极为明显的优越性,是一种很好的过渡技术。     

电压互感器爆裂原因剖析及防范措施

本文针对神火一电厂6kV系统电压互感器自投产以来发生的几次损坏现象，简要阐述电磁谐振产生的原因、危害及防范措施，同时也提出针对此类故障应从哪些方面入手的意见，希望能对一些单位有所借鉴。     

基于Matlab的pH计算

探讨了利用易学易用的数学软件Matlab准确计算酸碱溶液pH和求解配位滴定金属离子允许的最小pH的计算方法.     

Serum-induced stimulation of snRNA synthesis in mouse 3T3 fibroblasts

Summary Small nuclear RNAs (snRNAs) from quiescent and serum-stimulated 3T3 cultures, labeled with [³H]uridine ([³H]U), were electrophoresed in polyacrylamide-urea slab gels and revealed by staining with ethidium bromide and by fluorography, Judged by labeling with [³H]U, synthesis of 7S and U1-U6 RNAs was very low or absent in quiescent cultures. The serum-induced transition of 3T3 cells from a resting to a growing state was accompanied by an early, apparently sequential stimulation of snRNA synthesis; stimulated synthesis of 7S, U1, U2, U3, U4 and U6 RNAs coincided in time with serum-induced stimulation of 45S pre-ribosomal RNA (pre-rRNA) and heterogeneous nuclear RNA (hnRNA) synthesis.