运动、氧化应激与DNA损伤和修复

在分子和基因水平上对运动时氧化应激损伤、氧化应激与DNA损伤以及DNA损伤和修复等几方面关系进行探讨,旨在探讨运动疲劳和损伤发生的分子生物学基础,并对未来运动医学研究的发展趋势进行展望。     

玻璃熔窑箱式蓄热室的热修

由于熔窑的长期运行以及燃料由重油改为煤焦油,从而造成了部分蓄热室的严重堵塞,严重影响熔窑的熔化作业,影响玻璃的产量和质量.为此,通过制定详尽的热修计划,合理的止火降温方案及科学的施工,对1号3号两对窑炉蓄热室进行了整体格子砖的热修,收到了好的效果.     

开放型计算机机房的系统维护

现在计算机的操作系统和应用软件变得愈来愈庞大,安装一台计算机的软件系统要需要很长时间;因此,采用针对可能出现软件故障的预防措施和寻找一种快速修复损坏的软件系统的方法就显得更加重要。该文对各种硬盘数据维护技术的原理和特点进行了分析比较,最后对开放型公共机房计算机软件系统的维护提出了一个较好的解决方案。     

温莎城堡

How specialist repair work restored Windsor Castle to its former glory.Many people in Britain and across the world can remember the night a few years ago when Windsor Castle caught fire.     

带血管蒂组织瓣移位修复股骨头缺血性坏死的研究现状

股骨头缺血性坏死的临床治疗中带血管蒂组织瓣转位修复术收效良好。本文就股骨头血供特点、关节囊附着特点和几种股骨头修复术能带血管蒂转位的供瓣区解剖特点作一综述，为临床设计操作方便、损伤小、血供丰富的组织瓣转位术提供解剖学依据。     

意大利蜜蜂(Apis mellifera L.)飞翔肌的发育

全变态昆虫肌肉的转化与脊椎动物肌肉损伤修复有很大的相似之处。本文以意大利蜜蜂飞翔肌的发育阐明这一观点。两者的相似性表现为:①参与肌肉修复和成蜂飞翔肌形成的成肌细胞来源于胚细胞;②飞翔肌的发育过程中肌肉的转化和肌肉损伤修复均有幼虫残余肌丝或损伤部位残余肌丝和成肌细胞融合,成肌细胞与成肌细胞之间的融合等现象。这些结果为全变态昆虫肌肉的转化作为了解脊椎动物肌肉再生知识的便利模型的可行性,提供了理论依据。     

网络环境下虚拟图书馆与传统图书馆将共存互补

本文论述了虚拟图书馆和传统图书馆的定义、功能，分析了各自的优势和不足，探讨了二者间的关系。得出了二者在相当长时期内共存互补的结论，最后提出了未来图书馆事业发展的对策，即建立复合图书馆。     

Injectable hybrid inorganic nanoscaffold as rapid stem cell assembly template for cartilage repair

Cartilage injuries are often devastating and most cannot be cured because of the intrinsically low regenerative capacity of cartilage tissues. Although stem-cell therapy has shown enormous potential for cartilage repair, the therapeutic outcome has been restricted by low survival rates and poor chondrocyte differentiation in vivo. Here, we report an injectable hybrid inorganic (IHI) nanoscaffold that facilitates fast assembly, enhances survival and regulates chondrogenic differentiation of stem cells. IHI nanoscaffolds that strongly bind to extracellular matrix (ECM) proteins assemble stem cells through synergistic 3D cell–cell and cell–matrix interactions, creating a favorable physical microenvironment for stem-cell survival and differentiation in vitro and in vivo. Additionally, chondrogenic factors can be loaded into nanoscaffolds with a high capacity, which allows deep, homogenous drug delivery into assembled 3D stem-cell-derived tissues for effective control over the soluble microenvironment of stem cells. The developed IHI nanoscaffolds that assemble with stem cells are injectable. They also scavenge reactive oxygen species and timely biodegrade for proper integration into injured cartilage tissues. Implantation of stem-cell-assembled IHI nanoscaffolds into injured cartilage results in accelerated tissue regeneration and functional recovery. By establishing our IHI nanoscaffold-templated 3D stem-cell assembly method, we provide a promising approach to better overcoming the inhibitory microenvironment associated with cartilage injuries and to advance current stem-cell-based tissue engineering.     

热喷涂技术在电站设备中的应用

分析了电站设备中的电站锅炉、风机、磨煤机等设备的损耗原因,介绍了使用热喷涂技术对设备进行防护的措施。可以使用电弧喷涂技术、等离子喷涂技术或火焰喷涂技术喷涂高温材料的方法防护并维修电站锅炉的锅炉四管,喷涂耐磨材料防护并维修风机和磨煤机等。     

浅谈古籍修复与技术

本文通过总结自己长期从事古籍修复的经验,在严格遵循古籍修复的原则下,叙述了图书馆古籍善本的修复与技术,为我国的古籍修复事业尽一份力.