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吸光度(光密度)量符号的正确表示方法 总被引：1，自引：0，他引：1
针对目前各科技期刊对吸光度（光密度）的量符号的不同认识和不恰当表示方法,分析了吸光度（光密度）的含义,根据《量和单位》国家标准的规定,提出了吸光度（光密度）量符号的正确表示方法,以期为广大同仁提供参考,为正确执行《量和单位》国家标准提供依据. 相似文献
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本文对农业科技期刊中几种常见酶的酶活性单位的使用现状进行分析,发现该类酶酶活性单位应用较为混乱,甚至出现使用错误。科技期刊编辑在编校过程中应溯本追源,保证所用单位的自明性、客观性和准确性;同时探讨了自定义酶活性单位的规范化使用途径。 相似文献
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论科技期刊“等级”与其所载论文质量的关系 总被引：1，自引：1，他引：1
针对我国科研院所和大专院校近年来普遍通过给科技期刊"定级"等方法来评估科技论文质量的现象,指出了这种过度简单化的处理方式对期刊发展及科学研究的不良影响,从概率论角度分析了不同质量标准科技期刊与其所载科技论文之间的质量关系.论证了我国学术研究领域目前所流行的几种划分期刊等级的典型"标准'之不合理性. 相似文献
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邓建元 《中国科技期刊研究》2001,12(4):309-311
对科技期刊经常出现用英制单位“目”来表示原料粒度规格的情况，阐明了应该采用国际单位制取代、但又不能简单取代的理由。文中分析了“目”的取代特点，提出了几适用于不同情况下的取代方法及其表述方式，以供同行参考。对特定条件下仍然出现“目”的现象提出了一点个人看法。 相似文献
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分别介绍了几种常用的知识表示方法,在讨论了知识表示方法选择所应考虑的因素后,对这些方法进行了综合比较,分别指出了其优缺点。进而提出了利用本体来表示新产品开发领域的知识以解决其知识共享和知识重用的问题,并对其优势进行了分析。 相似文献
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梁秋野 《中国科技期刊研究》2000,11(2):121-122
针对目前科技期刊中数学逻辑运算符号的不正确使用倾向,在给出其正确使用方法的同时,剖析了几种常见的错误,并对科技期刊同仁提出了要重视来稿中数学逻辑运算符号的编辑加工问题的倡议。 相似文献
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梁秋野 《中国科技期刊研究》2000,11(1):121-60
针对目前科技期刊中数学逻辑运算符号的不正确使用倾向,在给出其正确使用方法的同时,剖析了几种常见的错误,并对科技期刊编辑同仁提出了要重视来稿中数学逻辑运算符号的编辑加工问题的倡议。 相似文献
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赵业玲 《中国科技期刊研究》2009,20(3):556-557
介绍化学稿件中几种常用到的溶液浓度表示方法,通过简单的换算,辨析与溶液浓度相关的量和单位的含义,并根据国家标准以规范形式表达。 相似文献
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《中国科学院院刊(英文版)》2008,22(1):13-14
Aresearch project on the greenhouse cultivation of Swertia chirayita Buch Ham, a popular herbal drug used by the Tibetan people against liver and gallbladder diseases, recently passed the acceptance check by a panel of experts under the auspices of Qinghai Provincial S＆T Bureau. The feat was accomplished by researchers from the Lanzhoubased CAS Northwest Institute of Plateau Biology. 相似文献
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The research into the origins of domestic animals is of significance not only for understanding their development per se but also for making clear the human society evolution. Although there are evidences to show that pigs were independently domesticated in a variety of places throughout the world the detailed scenario of the origin dispersal of domestic pigs in East Asia remains unclear.…… 《中国科学院院刊(英文版)》2008,22(1):7-7
The research into the origins of domestic animals is of significance not only for understanding their development per se, but also for making clear the human society evolution. Although there are evidences to show that pigs were independently domesticated in a variety of places throughout the world, the detailed scenario of the origin and dispersal of domestic pigs in East Asia remains unclear. 相似文献
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Among the galaxy of research development organizations in northwest Beijing's Zhongguancun district known as China's Silicon Valley two are especially well-known to IT researchers: Microsoft Research Asia 《中国科学院院刊(英文版)》2008,22(1):47-49
Among the galaxy of research and development organizations in northwest Beijing＇s Zhongguancun district, known as China＇s Silicon Valley, two are especially well-known to IT researchers： Microsoft Research Asia （MSRA）, and, within a few blocks on the other side of the street, the CAS Institute of Automation （CASIA）. While most people in Chinese scientific organizations strive to move to a large foreign counterpart, Dr. Stan Z. Li （LI Ziqing） moves against the stream. 相似文献
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《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
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《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
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《中国科学院院刊(英文版)》2008,22(1):58-58
As a key component of the national initiative for basic S＆T data and infrastructure development, a nationwide survey on the lake water quality, volume and bio-resources has recently been kicked off. The move marks the systematic implementation of the secondround investigation of the country＇s lacustrine resources. 相似文献
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Bats the only mammals known to possess the real ability to fly have fascinated zoologists for a long time with their long-distance migration. How do they find their way home from an altitude of kilometers above sea level where their stunt of ultrasonic echolocation does not work?…… 《中国科学院院刊(英文版)》2008,22(1):3-4
Bats, the only mammals known to possess the real ability to fly, have fascinated zoologists for a long time with their long-distance migration. How do they find their way home from an altitude of kilometers above sea level, where their stunt of ultrasonic echolocation does not work？ Recent discoveries supported the theory that bats might be able to use magnetic clues to figure out their own position,just like what birds do. However, the latest results from a joint study by a group of researchers from the CAS, East China Normal University and University of Auckland reveal that bats apply an interesting strategy different from the one underlying birds＇ orientation technique, though they both are believed to derive information about their position from the subtle changes in the magnetic field of the Earth. 相似文献
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《中国科学院院刊(英文版)》2014,(3):252-252
<正>On February 12,2014,the international academic journal Cancer Research published an article online entitled"Latency Associated Nuclear Antigen of Kaposi's Sarcoma Associated Herpesvirus Promotes Angiogenesis through Targeting Notch Signaling Effector Hey1",as a result from the research conducted by Prof.LAN Ke’s lab at the Institut Pasteur of Shanghai,Chinese Academy of Sciences. 相似文献
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SONG Jianlan 《中国科学院院刊(英文版)》2014,(3):217-220
<正>Scientists from CAS and the Max Planck Society(MPG)met on May 13,2014 in Beijing to celebrate their four-decade-long ST cooperation and cherished friendship,anticipating further development of the bilateral relation.This partnership formally began four decades ago with a visit paid by then MPG President,Prof.Lüst to CAS,introduced CAS President BAI in his address at the celebration:"During the visit,CAS and MPG confi rmed the basic principles of cooperation,that is equality and mutual benefi ts for both sides,and reached agreement to develop a collaborative partnership."This occurred only two years after the establishment of the diplomatic relations between Germany and China,despite the shadow of the Cold War."Building up a partnership between Germany and 相似文献
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TANG Kun 《中国科学院院刊(英文版)》2014,(2):161-165
<正>The scientifi c goals of the Partner Group are to utilize large scale genomic polymorphism data to make fi ne inferences about human demographic history and various forms of natural selection in the human genome;and to understand the genetic basis and evolutionary mechanisms underlying the common variations in human facial morphology,both within and between populations. 相似文献