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1.
The first train from Beijing to Tibet set out on its maiden voyage along the world's highest railway on July 1, 2006. With most of the new 1,110-kilometer track from Golmud in Qinghai to Lhasa at altitudes above 4,000 meters, the train, which is known as the "sky train" by local people, crosses more than 550 kilometers of permafrost, posing a major challenge to the railway's design and construction.  相似文献   

2.
Teaming up with colleagues from Europe, Japan, and US, Dr. DENG Jinsong from the National Astronomical Ob- servatories at CAS (NAOC) has made fresh progress in revealing the mechanism behind the origin of the long-duration gamma-ray bursts (GRBs), which a…  相似文献   

3.
China's first lunar probe Chang'e-I, named after a mythical Chinese goddess who, according to legend, made her home on the moon, blasted off on 24 October from the Xichang Satellite Launch Center in the southwestern province of Sichuan. In addition to making the dream cherished by Chinese people to fly to the moon come true, it is the first step into China's ambitious threestage moon mission, marking a new milestone in the country's space exploration history.  相似文献   

4.
After more than two decades of hard work, an international working group led by renowned paleontologist JIN Yugan (1937-2006) from the CAS Nanjing Institute of Geology and Paleontology (NIGPAS) and his coworkers has finally convinced the world geological community that the stratotype sections for the base and internal boundaries of the Upper Permian (Lopingian) Series about 250million years ago are located in China.  相似文献   

5.
From August 20 to 24, 2012, more than 1,500 mechanical scientists and students from over 60 countries gathered in Beijing to attend the 23^rd International Congress of Theoretical and Applied Mechanics...  相似文献   

6.
CAS researchers have been successful in their experimental entanglement of six photons in graph states: a "Schr(o)dinger cat" state, and a "cluster" state. By creating two important examples of such states, according to experts, the studies have paved the way for the research into the fundamental issues in quantum computing, quantum error correction and quantum mechanics.  相似文献   

7.
August 2012 is an unforgettable month for Prof. Timothy J. Pedley from Cambridge University: a few days after his nation had successfully hosted the Olympic Games in London, he and more than 1,500 mech...  相似文献   

8.
A research team led by Prof.JING Yipeng from the CAS Shanghai Astronomical Observatory (SHAO) recently got a shot in the arm. Its research project"large-scale structures in the universe and the formation and evolution of galaxies," has won the support from the National Basic Research Program(dubbed "973" Program).  相似文献   

9.
正Vascular growth and remodeling are dependent on the generation of new endothelial cells from stem cells while vessel integrity and function are stabilized and maintained by embracing pericytes.For years,the cellular hierarchy and the identity of the stem cells in the endothelium remained unclear;meanwhile,the current dogma insists that pericytes are "recruited" from mesenchymal progenitors and "adhered" to the outer wall of the endothelium.  相似文献   

10.
The National Basic Research Program (dubbed as the "973 Program") is China's on-going national keystone basic research program, which was approved by the Chinese government in June 1 997 and is organized and implemented by the Ministry of Science and Technology.  相似文献   

11.
科学界有一句格言,“创造的秘诀在于求异”。异,就是与众不同,就是独树一帜。许多科学家和发明家都是属于“特异”一类的人。他们勇于发表异言,乐于坚持异见,善于运用异思。总之,他们的特征是标新立异。“异”是思想的解放,观念的更新。有人曾把“异想天开”贬斥为不切实际的胡思乱想,这是一种偏见。其实,没有“异想”,何来“天开”呢?异想,使我们摆脱了控制性观念的束缚,使我们超越了常规式思考的限制。有人也将“见异思迁”一词用来讽刺某些在事业上不安分守已的人,这也是不恰当的。须知,这个“异”正是创造本能的体现。山…  相似文献   

12.
在第三屠中国国际高新技术成果交易会期间,本刊记考在深圳专程采访了致力"成为推动中国半导体设计产业的主要办量'的翱科公司与其创始人--副主席兼策略总裁高秉强及技术副总裁、翱科半导体公司总经理陈凯博士.  相似文献   

13.
自然辩证法作为马克思主义的科学哲学,从其产生以来,自然界是否存在客观辩证法问题一直是争议的核心。辩证法概念发展的一般哲学史含义同德国古典哲学的特殊转义是造成自然辩证法概念理解分歧的根本原因。因此在哲学史背景下对辩证法概念进行文本学考察,是判别自然辩证法概念真实含义及其合理性的最可靠依据,是深入进行自然辩证法研究的前提,是保持马克思主义哲学体系完整性研究的基础。  相似文献   

14.
唐芬 《科教文汇》2011,(8):163-164
喜欢活动、需要快乐是小学生的天性.这中间包含了他们对未来的追求.对人生乐趣的渴望。在活动化教学活动中,他们要摸、要闻、要尝、要听、要唱、要跳、要画、要写:在和伙伴们一起活动时,要说话、要进行思想交流、要模仿别人,要探索、要创造、要驰骋于想象的天地。他们积极参与其问,兴趣盎然,领悟了学习的喜悦,获得了成功的满足.从而充分发挥了个性.提高了他们的全面素质.  相似文献   

15.
"参考文献"与"引文"的差异   总被引:2,自引:1,他引:2  
林晓军  王昕 《情报科学》2000,18(2):180-181,184
"参考文献"、"引文"是文献计量学中引文分析法常用的两个学术用语,针对目前某些文献中对这两个术语使用比较混乱的现象,本文从信息的角度论述了这两个术语的基本概念和相互关系.  相似文献   

16.
中国制造与"世界第一"   总被引:1,自引:0,他引:1  
“中国制造”的崛起是20世纪末21世纪初世界经济发展中的一件大事,也是中国经济为全球所瞩目的主要原因。进入21世纪以来,中国整体经济的质量和结构得到有效调整,国有企业的改革和效益也较过去出现了较大程度的改善,外资企业蜂拥挤般进入中国,民营企业在夹缝中生存下来并迎来了其发展的  相似文献   

17.
文章从文献角度与医学原理,分析了《素问·至真要大论》"诸痛痒疮,皆属于心"一句中的"痒"字,对历代医家的理解作疏解,并结合当代学者的观点展开了探讨。同时,"对诸痛痒疮皆属于心"的含义提出新的见解。  相似文献   

18.
蔡鸽 《科教文汇》2013,(2):131-132
0—6岁的儿童年龄较小,生长发育较快,孩子的营养、吃饭问题就成了老师和家长们一个比较关注的话题。而现在的很多孩子由于挑食、厌食导致体重超标、营养不良,本文在基于实例的基础上,结合孩子的生理和家长的教育问题,提出可行的教育方法,帮助孩子养成良好的生活习惯,促进孩子的健康成长。  相似文献   

19.
正確理解權利要求的内容是審理專利侵權訴訟案件和專利確權案件的基礎。而對權利要求的理解離不開對權利要求自身内容的解讀和專利説明書的解釋。一項權利要求由若干技術特徵構成,解讀一項權利要求時,不僅要正確解讀權利要求中每一個技術特徵自身的含義,而且要考慮各技術特徵之間的關係。  相似文献   

20.
陈光霓 《科教文汇》2012,(25):86-86,91
讲述故事的游吟诗人和歌者是人类社会发展过程中很重要的历史文化传播者。文章以传统西藏的说唱艺人"仲肯"和古希腊诗人"荷马"为研究对象,通过比较和对照游吟诗人的共通之处,说明故事的讲述人在"行走"中不仅完成了史诗的创编、演述和流布,同时也在这个过程中构建起了凝聚群族认同的社会记忆。  相似文献   

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