少油断路器机械特性智能测试仪研究

对少油断路器机械特性智能测试仪的硬件组成原理、智能化方法进行了深入探讨.并在软件设计中论述了模糊故障诊断原理及此技术在智能化装置中的应用.     

Loss of Cul1 results in early embryonic lethality and dysregulation of cyclin E.

The sequential timing of cell-cycle transitions is primarily governed by the availability and activity of key cell-cycle proteins. Recent studies in yeast have identified a class of ubiquitin ligases (E3 enzymes) called SCF complexes, which regulate the abundance of proteins that promote and inhibit cell-cycle progression at the G1-S phase transition. SCF complexes consist of three invariable components, Skp1, Cul-1 (Cdc53 in yeast) and Rbx1, and a variable F-box protein that recruits a specific cellular protein to the ubquitin pathway for degradation. To study the role of Cul-1 in mammalian development and cell-cycle regulation, we generated mice deficient for Cul1 and analysed null embryos and heterozygous cell lines. We show that Cul1 is required for early mouse development and that Cul1 mutants fail to regulate the abundance of the G1 cyclin, cyclin E (encoded by Ccne), during embryogenesis.     

THE DEVELOPMENT OF A MANIKIN TO SIMULATE THE THERMAL PHYSIOLOGY OF PREMATURE INFANTS

This paper describes a manikin (also known as mannequin) to simulate the thermal physiology of premature infants and experiments performed on it.The performance of the manikin is shown to compare well with that a selection of premature infants in terms of their rate of heat loss.     

利用Zeeman效应测定原子能级的量子数和朗德g因子

本文阐述了通过Ｚｅｅｍａｎ效应来测定原子能级的量子数以及朗德ｇ因子的方法，理论分析并实验测定，切实可行．     

Ⅲ-Ⅴ族半导体化合物(311)A表面的电子结构特征

在考虑最近邻、次近邻相互作用的SP3模型基础上,采用形式散射理论的格林函数方法计算了Ⅲ-Ⅴ族半导体化合物GaAs、InSb、InAs和GaP的(311)A表面的电子结构,给出了以上半导体材料体能带的表面投影能带结构,并给出了GaAs的(311)A表面的层态密度函数,分析了各表面态沿表面布里渊区高对称线的色散特性和(311)A表面的共同电子结构特征,计算结果与实验结果基本一致.     

Interation of quasi-rational mapping

The more general ease of interation of quasi-rational mappings, including their Julia sets and quasi normal sets, is studied and some results corresponding to complex dynamics are obtained.     

Investigation in Longitudinal Compression of Wool Based Suiting Fabrics

This paper describes an investigation in the fabric longi-tudinal compressibility of thirty-one suiting and trouse-ring materials using a newly developed device attached to the advanced Instron extensometer Model4466.The at-tachment was designed mainly to ensure a correct align-meat of fabric plane at the start of compression.Usingthe newly developed testing method,fabric longitudinalcompression curve was obtained and the results of longi-tudinal compressibility measured by two different com-pression load ranges(from 0 to 0.5 N/m width and 0 to1 N/m width)were examined.In addition,their rela-tionships with the fabric low-stress mechanical proper-ties measured by the KES-F system were investigatedusing statistical analysis.The results clearly indicatedthat significant differences existed when substituting fab-ric longitudinal compressibility with fabric extensibilitymeasured using the KES-F system under a low-load.Significant infiuence of yarn rotational movement in fab-ric on the longitudinal compressibi