Tsinghua Ranks First Nationwide in First Category National Key Disciplines

According to the Ministry of Education, 22 Tsinghua University disciplines were evaluated as First Category National Key Disciplines, ranking first nationwide. It is the first time for China to establish First Category Key Disciplines. Among the 22 First Category National Key Disciplines, 16 disciplines are in engineering, three in science, two in management, and one in medicine. In addition, fifteen Tsinghua disciplines were evaluated as Second Category National Key Disciplines, among which, two are in engineering, one in science, nine in medicine, and three in humanities and social sciences.     

变色泡泡

Key:你看好多灯哦,电灯的英文怎么说呢?Nono:是light,不过这个词还有许多其他意思呢。A cold grey light crept through under the curtains.一丝幽暗阴冷的光从窗帘下面透过来。He lit the candles.他点亮了那些蜡烛。     

如果我是《动物世界》的导演

人人都可以当动物记录片导演,只要他有想象力。镜头里出现树上的猴子,画外音:"猴子,骄傲而聪敏,自由自在地生活在树林中。但它缺少一种东西……"镜头转向长颈鹿:"那就是长脖子,就像长颈鹿。这也正是为什么神奇的自然让它们联手行动。"播放猴子骑在长颈鹿脖子上的画面(把猴子绑在     

长颈鹿趣谈

长颈鹿是种古老的动物,起源于非洲,大约在一千多万年以前,曾经进入到亚洲和欧洲.后来由于环境或其他原因,现在又重新被限制在非洲,而且栖息地越来越小.长颈鹿高大,腿长,脖子长,善跑,这是大家都熟悉的.但这首屈一指的"巨人"在     

长颈鹿的“生存之道”

正长颈鹿是生活在非洲的动物,主要分布在撒哈拉以南到南非的德兰瓦士东部、纳塔尔和博茨瓦纳北部等地方。但古生物学家研究认为,长颈鹿其实起源于亚洲。2000多万年至200多万年前,在中国和印度的一些地方,曾经生活着长颈鹿的祖先,不过那时候长颈鹿祖先的脖子和腿没有现在的长颈鹿的脖子和腿长。长颈鹿的长脖子长颈鹿身子大,脑袋小,它的庞大身体由四条细细的大长腿支撑,让人不禁为它感到担心。长颈鹿的身高可达6～8米,是目前世界上最高的陆生动物,因此人们称其为"大草原的瞭望塔"。     

Homomorphism key agreement based on RSA

0 IntroductionNow,the encrypt technology is the main means to com-municatein security. Key management is i mportant al-so. The reason is that all encrypt technology depend on keywhichis a complex security problem. Besides , key manage-ment is different to different encrypt system[1-3].Key manage-ment includes production, storage, distribution, delete, pi-geonhole and application of the key. The problems involvesysteminitialization,the production of key,storage,to re-sume, enclose, distributio…     

变色泡泡

Key:你看我们的身边到处都有什么?是"air"。Nono:哦,就是空气。的确,它可真是无处不在呢。Key:不过"air"除了表示空气,还有很多其他意思。Itjust takes two hoursby air.乘飞机只要2小时。Please air the the T-shirts.请把这些T恤衫晾晒一下。     

雨林探险

Key上回可长了见识，原来堵笼草竟是一种食肉植物。当他正在研究猪笼草上挂的“小瓶子”时，忽然听见一个奇怪的声音在叫他。     

State Key Laboratory of Applied Organic Chemistry

The State Key Laboratory of Applied Organic Chemistry (SKLAOC) was founded in 1987 with the approval of the State Planning Commission. Professor Liu Zhongli is the director of the Laboratory and Professor Zhang Lihe, an academician of the Chinese Academy of Sciences, is the chairman of its academic committee. There are 30 faculty members, among them 21 are professors, working in the Laboratory.     

SPECIAL TOPICS: Extended Coulomb failure criteria for the Zipingpu reservoir and Longmenshan slip investigated by researchers at the Chinese Academy of Sciences

Describing the correlation of a reservoir and earthquake slip remains a great challenge. Professor SHI Yaolin and his group at the Key Laboratory of Computational Geodynamics of the Chinese Academy of Sciences and the College of Science of the Graduate University of the Chinese Academy of Sciences are attempting to solve this problem. On the basis of the laboratory’s parallel central processing unit (CPU)     

Study and innovation of a flexible blade turbine, a new type of tidal current generating device

Utilization of tidal current is becoming a focus of marine energy research and development field. In this paper, a new type of tidal current power generating device which called flexible blade turbine was put forward. A scale model testing was carried out, and results show that the models performed as expected with good hydrodynamic characteristics. Based on analysis of the results, a scale model turbine with a rated power of 5kW was constructed, which was an optimal scheme of the flexible blade turbine having higher coefficient of power and power generation capacity. Sea trials were carried out in the Zhaitang Island channel to evaluate the performance of the turbine. Results show that the turbine performed well, generating the power predicted. Key words: tidal current; flexible blade turbine; coefficient of power; sea trials     

Graptolite fauna indicates the beginning of the Kwangsian Orogeny

A research at the State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,has shown,based on a refined division and correlation of the graptolite-bearing strata in southern Jiangxi,China,that the Kwangsian Orogeny commenced in the early Katian Age of the Late Ordovician. Because of its significant research value,this study is published in Volume 53,Issue 11 of SCIENCE CHINA Earth Sciences.     

Real applications of quantum communications in China

The first metropolitan quantum cryptography network for government administration, which is named ＂Q- Government＂, has recently been field tested in Wuhu, Anhui Province by researchers of Key Laboratory of Quantum Information （CAS） . Based on quantum cryptography, the network can guarantee the unconditional security for information transmission in an open channel.     

Metal-free click polymerization of propiolates and azides

Researchers from the MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, China, have expanded the range of monomer pairs used in their established metal-free click polymerization of aroylacetylene-azides to propiolate-azides. They efficiently prepared functional poly(aroxycarbonyltriazole) compounds with     

Introduction to Progress in Natural Science: Materials International

<正>Progress in Natural Science(Chinese/English version)was founded by National Natural Science F oundation of China in 1991.The initial issue was published bi-monthly with the name of Progress in Natural Science—Communication of State Key Laboratories of China.In 1998,the journal changed its name to"Progress in Natural sciences".Later in 1999,the journal started to publish monthly.Beginning in 2004,the jour nal was co-sponsored by National Natural Science Foundation of China and the     

Introduction to Progress in Natural Science:Materials International

Progress in Natural Science(Chinese/English version) was founded by National Natural Science Foundation of China in 1991.The initial issue was published bi-monthly with the name of Progress in Natural Science——Communication of State Key Laboratories of China.In 1998,the journal changed its name toProgress in Natural sciences.Later in 1999,the journal started to publish monthly.Beginning in 2004,the journal was co-sponsored by National Natural Science Foundation of China and the Chinese Academy of Science...     

Progress in electrode materials for the industrialization of sodium-ion batteries

In recent years, sodium-ion batteries(SIBs) have received renewed attention due to the continued rise in lithium prices. SIBs are promising to replace lithium-ion batteries under various application scenarios, such as large-scale energy storage systems and low-speed electric vehicles. As the core of SIBs, electrode materials are the key factor demining the electrochemical performance. Key drawback, including cycle stability, air stability and energy density, are refraining the development of SIB...     

Introduction to Progress in Natural Science:Materials International

Progress in Natural Science(Chinese/English version) was founded by National Natural Science Foundation of China in 1991.The initial issue was published bi-monthly with the name of Progress in Natural Science——Communication of State Key Laboratories of China.In 1998,the journal changed its name toProgress in Natural sciences.Later in 1999,the journal started to publish monthly.Beginning in 2004,the journal was co-sponsored by National Natural Science Foundation of China and the Chinese Academy of Science...     

A new high performance and fault-tolerant datacenter network for modular datacenters proposed by researchers from NUDT

A modular datacenter network (MDCN) is the key component in building mega-datacenters. Huang Feng, Li Dongsheng, and their group from the National Key Laboratory of Parallel and Distributed Processing, School of Computers, National University of Defense Technology present a novel hybrid intra-container     

Introduction to Progress in Natural Science:Materials International

<正>Progress in Natural Science(Chinese/English version)was founded by National Natural Science Foundation of China in1991.The initial issue was published bi-monthly with the name of Progress in Natural Science-Communication of State Key Laboratories of China.In 1998,the journal changed its name to"Progress in Natural sciences".Later in 1999,the journal started