运动诱导的骨骼肌细胞中IL-6作用的研究进展

运动导致了骨骼肌细胞中IL-6表达并且解释了运动中血浆IL-6浓度增加的原因。虽然我们还不能确定IL-6的准确作用,但是研究支持了释放入血浆中IL-6充作激素样效应的假说,介导了运动过程中底物调节。另外,运动诱导的IL-6介导了免疫调节和抗炎性效应。因此,运动导致的骨骼肌细胞中IL-6的表达具有重要的生物学作用。     

超细晶建筑装饰铝合金的摩擦磨损性能研究

采用X射线衍射仪、摩擦磨损试验机和扫描电镜等手段,测试分析了固溶态、T6态和ECAP时效态6063铝合金的物相组成、显微组织和摩擦磨损性能.结果表明,固溶态、T6态和ECAP时效态6063铝合金的主要物相都为α-Al相、β-Mg2Si相、β-Mg1.7Si相和β"-Mg5Si6相,但是ECAP时效态6063铝合金的β相...     

面向IPv6的边界网关协议BGP4+探析

文章着重概述了BGP协议,并在此基础上探讨了GBGP4+协议与BGP4协议的区别,同时介绍了BGP4+协议的工作原理.     

下一代互联网协议:IPV6

本文指出了下一代互联网协议IPV6 的产生、特征和优势,及从IPV4到IPV6过渡的几种技术,并对IPV6的应用及发展前景进行了分析.     

基于熵理论的真实IPv6地址随机测度分析

IPv6通过EUI-64实现无状态地址自配置的同时也带来用户隐私问题。为此,IETF又引入RFC3041标准以产生有特定时效的无状态随机IPv6地址,提高用户的安全性,但这种无状态随机自配置地址也给IPV6包分类及网络扫描等算法的优化设计带来新的困扰。文章通过熵理论对真实IPv6地址进行随机性分析,并通过逾10万样本数据的随机测度计算后发现:RFC3041产生的IPv6地址具有固定比特恒为0的随机特性。     

Exploring Year 6 pupils’ perceptions of private tutoring: evidence from three mainstream schools in England

While quantitative research on the nature and extent of private tutoring in England is increasingly available, very limited evidence exists regarding pupils’ voices in evaluating their participation in private tutoring. Thus, the present qualitative study seeks to investigate the perceptions of 14 Year 6 pupils from three primary schools in East Kent of receiving tutoring. Data were collected through semi-structured focus group interviews and pupils’ drawings. The data suggest that the participants displayed prevention (ought) orientation by conceiving tutoring as a powerful means to help them to pass the grammar school entrance exam and thus avoid failing their parents’ expectations. However, some participants gradually realised that the advantages of receiving tutoring were not restricted to tangible (quantifiable) benefits related to improved examination results. Tutoring also enabled them to achieve their desired possible self-image by boosting their self-esteem and interest in learning, and becoming more confident when socialising with others (i.e. intangible benefits). The participants acted agentively, not only reflecting on the benefits of tutoring but also on its disadvantages including creating pressure on their parents and themselves and being somewhat an unfair advantage in competition. From this qualitative study, pedagogical implications and areas for ongoing research are suggested.     

IPv4与IPv6分析比较及对域名系统需求研究

通过对IPv4的局限及IPv6的主要特性的详细阐述，就IPv4及IPv6下DNS体系结构及IPv4到IPv6过渡中新特征对域名系统（DNS）需求等方面进行了分析研究。     

IPv6协议与高校图书馆网络建设

由于IPv4存在的不足,IPv6协议自然成为下一代互联网的核心技术。文章根据IPv6的优良特点,指出应尽快建设基于IPv6的高校图书馆网络或对目前IPv4的网络进行升级,这将给高校图书馆的网络建设带来许多新应用。同时,对IPv6的过度技术进行分析,简要论述了高校图书馆IPv6网络建设过程中应注意的原则和实施方案。     

(H2O)6缔合体的几何构型和稳定性分析

采用B3LYP/6-31 g**方法研究(H2O)6缔合体的优势构型和稳定性。结果表明:(H2O)6缔合体优势构型多呈三维立体结构,最稳定的是环状;氢键的空间分布对缔合体的稳定性起决定性作用,零点能起重要作用。     

高岭土表面性质的反气相色谱研究

利用反气相色谱法研究未经处理的高岭土和分别用硅烷偶联剂ＫＨ５６０、钛酸酯偶联剂ＮＤＺ－２０１处理后的高岭土的表面性质．同时用扫描电子显微镜研究表面处理对高岭土在尼龙６基体中分散行为的影响．结果表明，表面处理明显改变了高岭土的表面性质，从而影响到高岭土在尼龙６基体中的分散质量．