共查询到15条相似文献,搜索用时 15 毫秒
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人体内吵闹异常 你也许不敢相信,你身体内每时每刻都在发出巨大而吵闹的噪音,简直就像一支走了调的乐队在车水马龙的大街上演奏"交响乐"一样.如果你能潜入体内"洗耳恭听"的话,那就会大吃一惊:喧闹的细菌正在你的肠胃里举行闹宴;细胞质中有个具有膜层结构的进行氧化磷酸化的细胞器,叫线粒体,是细胞的"动力工厂",它如同超负荷运行的发电站一样在嗡嗡作响;正在自我复制的脱氧核糖核酸束打开链接时所发出的噪音竟像撕裂金属一般难受……你身体的每一个细小部分都在发出具有独特鲜明特征的噪音.研究生命科学的专家说,当微生物四处爬动和进行生物化学反应的时候,它们发出噪音的方式就与一个蒸汽核反应堆发出噪音没有什么两样. 相似文献
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《中国科学院院刊(英文版)》2004,18(1):6-6
Flexibility of polyelectrolyte nanotubes is necessary if they are to be exploited in applications such as developing photoelectric devices with strong mechanical properties. In a recent attempt, high flexibility has been observed from such nanotubes prepared by a research team headed by Prof. Li Junbai of the CAS Institute of Chemistry (ICCAS). 相似文献
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<正>由多段异质材料纳米线与纳米管联结组成的纳米结构,是纳米光电子器件的重要组成单元;同时,这种结构在条形编码、光学读出、生物、催化、自组装和磁操纵等方面均有广泛的应用前景。最近,中科院固体物理研究所孟国文小组在"多段异质纳米线与纳米管组成的分支结构"研究方面 相似文献
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应用扫描电化学显微镜研究电荷在液/液界面上的转移过程是目前电化学和电分析化学领域的研究热点之一。本文发展了一种制备金属纳米电极和SECM探头的方法.围绕着扫描电化学显微镜与纳米探头(金属、玻璃纳米管)的结合以及扫描电化学显微镜与极化的液/液界面的结合,本文研究了加速离子在可极化的液/液界面上的转移反应机理及其动力学,并对电子在液/液界面间的转移的Marcus理论做了较详细地探讨。 相似文献
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LiJunba HelmuthMǒhwald 《中国科学院院刊(英文版)》2004,18(2):62-63
The Partner Group on Colloid and Interface Science is based on the International Joint Laboratory, established in the former Beijing Institute of Photographic Chemistry, Chinese Academy of Sciences (CAS), and was incorporated into the Center for Molecular Science of the Institute of Chemistry, CAS in 1999. The Partner Group aims at research on molecular assembly of biomimetic membranes and the synthesis of nano-structured materials by way of training younger Chinese scientists and making use of the advanced facilities in Germany. Both sides cooperate closely in sectors in which they have a common interest to push forward the development of related sciences in China. The group leader, Li Junbai, has received many awards and has obtained much financial support inside China. On the German side, the Partner Group is hosting or participating in several research and development projects commissioned by the Max Planck Society and the Deutsche Forschungsgemeinschaft (DFG). The Partner Group has thus secured goo 相似文献
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