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1.
《中国科学院院刊(英文版)》2005,(3)
It seems to be a redoubtable task to retrieve the image of paleoclimate, considering the Earth’s his tory of 4.5 billion years. Fortunately, the Earth has recorded her vicissitude in three well-preserved and pre- cise autobiographies: the deep-sea deposits, the polar ice cores and loess sediments in China. All these give a lot of clues and data concerning the Earth’s natural history, climate and biological evolution, thus sparking interest from many scientists. Yet very probably the last o… 相似文献
2.
Dubliners is a collection of James Joyce’s short stories. Eveline is the fourth one among the fifteen stories. The setting of the story was in atypical townin Ireland.Eveline,the heroine,lived in apoor family with her father andseveral brothers.Her work was at homeand a store, taking care of her whole family and doing tedious work as a saleswoman. Her father was closefisted and bad-tempered. The owner of the store was not kind toher either. Later she came up withFrank, a sailor and falls i… 相似文献
3.
《中国科学院院刊(英文版)》2015,(4)
<正>On December 10,pharmocologist TU Youyou from the China Academy of Traditional Chinese Medicine was awarded the 2015Nobel Prize in Physiology or Medicine in Stockholm,"for her discoveries concerning a novel therapy against Malaria".As the first Chinese citizen to receive a Nobel Prize in sciences,she has been under the spotlight and her stories celebrated by many.BCAS reporter XIN Ling had the privilege to talk to 相似文献
4.
Foreign language learning is of crucial importance to everyone. What’s even more important is that which kind of learning strategies is used under a certain theory. This article will present an account of the two great linguists’ theories and try to investigate commons and differences between them. Doing so the author is in the hope of seeking a better learning strategy to help second language learners. 相似文献
5.
《中国科学院院刊(英文版)》2005,(3)
Inspired by the recent progresses in the related fields such as cognitive psychology, neural physiol- ogy and neural anatomy, the project aims to put for- ward new computational theories and algorithms which could overcome the main shortcomings in the Marr’s computational theory, a dominant paradigm for the last 20 years in computer vision field. This project is a sum- marization of the main achievements in such key issuesas new computational theory, early vision processing, camera calibratio… 相似文献
6.
《中国科学院院刊(英文版)》2014,(3):215-216
<正>QIN Liping,a professor of geochemistry at the University of Science and Technology of China(USTC),was presented the 2014 Houtermans Medal by the European Association of Geochemistry in Sacramento in June.She is the fi rst Chinese to receive this award.QIN finished her undergraduate degree at USTC.After earning her PhD from the University of Chicago in 2007,she did her postdoc at the Carnegie Institution for Science in Washington,D.C.under a Carnegie Fellowship.Then she conducted research at the Lawrence Berkeley National Laboratory as a Geological Postdoctoral Fellow.In 2012,QIN was recruited by 相似文献
7.
IntroductionKatherine Mansfield was just a girl from New Zealand and summoned tohold a belief in free love cast off the conventions of her time and was paid de-arly for it.Any good novel might start with a trip, and Katherine Mansfield startedwith more than twice. The colonial lady, felt urgent to take profound sense thatnothing could ever be the same into account, and found new expressions, newmoulds for the new thoughts and feeling. So she did. The emphasis was drawnupon the unchanged thi… 相似文献
8.
This essay is intended to explore some of the elements which bring about the tragic destiny of the heroine, Eustacia. She is a beautiful and romantic woman with violent passions. In her dark beauty, Hardy has painted one of his most memorable portraits. This essay attempts to deal with the topic question primarily from two aspects, the inner world of Eustacia herself and the external world around her. In Hardy＇ s work, human existence is usually depicted as a tragedy determined by powers beyond the individual＇ s command the external pressures of society and the internal compulsions of character. 相似文献
9.
《中国科学院院刊(英文版)》2019,(3)
<正>Einstein’s theory of special relativity is an important cornerstone of modern physics, with a wide application in the fields of astronomy and fundamental physics. It is therefore crucial to test the validity of the basic assumptions of special relativity, such 相似文献
10.
《中国科学院院刊(英文版)》2015,(4)
<正>In a lab of the CAS Institute of Process Engineering(IPE)in Beijing,Winifred Uduak Anake,a visiting woman scientist from Covenant University.Nigeria was dashing to finish testing the 100 plus samples she collected from her home country."1 am trying to find out the type and amount of hazardous trace metals bound to the tiny particles trapped on the filters,"she explained:"out of worries about their possible threat to human health."Before concluding her three-month stay she needed to complete examining the morphology of the particles,total trace metals,and chemical speciation for bioavailable metals 相似文献
11.
<正>Science,the never-ending frontier,is a major driving force for innovation in society.Unexpected discoveries in a particular area point to novel streams of innovation in other fields;new insights gained by theory shine light onto many so far untouched challenges.New methods and technologies in research trigger innovations in fields that were believed to be disparate for long.At the same time society expects science to solve important problems in the further development by health care and medicine,pave the road to sustainable technologies and industries that will increase the public wealth and thereby contribute to the well-being of the whole so- 相似文献
12.
《中国科学院院刊(英文版)》2018,(3)
正In a lab of the CAS Institute of Process Engineering(IPE) in Beijing, Winifred Uduak Anake, a visiting woman scientist from Covenant University,Nigeria was dashing to finish testing the 100 plus samples she collected from her home country."I am trying to find out the type and amount of hazardous trace metals bound to the tiny particles trapped on the filters,"she explained:"out of worries about their possible threat to human health."Before concluding her three-month stay she needed to complete examining the morphology of the 相似文献
13.
XIN Ling 《中国科学院院刊(英文版)》2009,23(2):98-102
Decades ago, he invented a cascade extraction theory and technique that have greatly facilitated the production of the so-called ＂industrial vitamins,＂ shifting China＇s role from a low-profit exporter of raw ores to the world＇s dominant supplier of separated individual rare earth compounds and metals in high purity. Now, long past retirement age, he is still actively engaged in the development of China＇s rare earth industry by calling for planned exploitation and resource conservation. Prof. Xu Guangxian （Kwang-Hsien Hsu）, 89, a CAS Member and laureate of the 2008 State Supreme S＆T Award, is among the most outstanding scientists of our time. 相似文献
14.
In the 1970s the development of high-resolution electron microscopy (HREM) provided a new approach to structure determination for minute crystals, which is thoroughly different from the diffraction methods.However, the previous method of trial and error has its own limits, such as some preliminary structural information must be known in advance; the crystals must be sufficient strong under the electron beam irradiation;and not all atoms can be seen in the image. Two ideas were proposed to initiate the present research project:one is to transform an arbitrary image into the crystal structure map, and the other is to enhance the image resolution by combining the information contained in the image and the corresponding electron diffraction pattern. These ideas have been realized via the combination of electron microscopy and diffraction crystallography. 相似文献
15.
FENG Yuan SHI Hong-ping 《科技风》2011,(18):23-24
The research value of the right of resistance in the administrative law has been highlighted gradually in recent years with the enhancement of legal awareness and the increase of administrative cases in our country.In this paper,based on the concept and characteristics of the administrative counterpart’s right of resistance and the present situation of its development in our country,a conception of system of administrative counterpart’s right of resistance is proposed with the use of the regulations concerning the right of resistance in other countries for reference. 相似文献
16.
《中国科学院院刊(英文版)》2007,(2)
The National Basic Research Program (dubbed as the " 9 73 Program" is China's on-going national keystone basic research program, which was approved by the Chinese government in June 1997 and is organized and implemented by the Ministry of Science and Technology. The strategic objectives of the Program are to strengthen the original innovations and to address the important scientific issues concerning the national economic and social development at a deeper level and in a wider scope, so as to improve China's capabilities of independent innovations and to provide scientific support for the future development of the country. The followings are some of the" 9 73 projects" initiated in 2006 under the coordination of CAS scientists. 相似文献
17.
Climate change will lead to a signifi cant alteration in the temporal and spatial pattern variation in the regional hydrological cycle, and the subsequent lack of water, environmental deterioration, floods and droughts etc. And it is especially remarkable in semi-humid and semi-arid region. In this paper, the impacts of climate change on the hydrological cycle were analyzed for the Hai River Basin, a semi-humid and semi-arid basin and also the water receiving area of the middle route of South-to-North Water Diversion Project. Meanwhile it is the most vulnerable to climate change. Firstly, the linear regression and Mann-Kendall non-parametric test methods were used to analyze the change characteristics of the hydrological and meteorological elements for the period from 1960 to 2009. The results show a signifi cant increase in temperature, while precipitation decreases slightly, and runoff decreases drastically over the past 50 years. Secondly, the applicability of SWAT (Soil and Water Assessment Tool) model based on the DEM (Digital Elevation Model), land use and soil type was verif ied in the basin. Results show the model performs well in this basin. Furthermore, the water balance model, Fu’s theory and Koichiro’s theory were used to calculate the actual evaporation, comparing to the simulated actual evaporation by SWAT model to validate the result for the lack of large-scale observed evaporation datasets. Possible reasons were also analyzed to explore the reasonable factor for the decline of the runoff. Finally the precipitation, temperature, runoff and evaporation response processes based on the IPCC AR4 multi-mode climate models and the verifi ed SWAT model under different GHG emission scenarios (SRES-A2, A1B and B1) in the 21st century were discussed in three time periods: 2020s (2011-2040), 2050s (2041-2070), 2080s (2071-2099). Results show that there are systematic positive trends for precipitation and temperature while the trends for runoff and evaporation will differ among sub-areas. The results will offer some references for adaptive water management in a changing environment, also including adaptation of a cross-basin water transfer project. 相似文献
18.
1. IntroductionEducation is a highly complicated processwhich is connected with families, schools andsociety throughout one’s whole life. HarryChester’s Schools for Children and Institutesfor Adults (1860) says, ‘Education is thedevelopment and training of the human beingin all his capacities, spiritual, intellectual andphysical; and in National Education we oughtto have no less grand an object than to developto the greatest possible extent, and to direct tothe best possible aims, the sp… 相似文献
19.
IA应用研究--我国政府网站考察与评价 总被引：20，自引：0，他引：20
Issuing government information is a major task of the government Website. So it‘‘s important that the government Website is organized in accordance with the users‘‘ need and habit. In this article, the theory of Information Architecture (IA) is used to examine and evaluate some government Websites in an attempt to investigate some elements of government Websites such as the navigation system, information retrieval method and ways of information organizing and labeling. 相似文献
20.
《中国科学院院刊(英文版)》2016,(3)
At long last,after two decades of endeavor,China’s first high energy astrophysics research probe is about to take of f.The 2.5-ton Hard X-ray Modulation Telescope(HXMT),which is set to be sent 550 km above the ground early2017,will be carrying a trio set of detectors to gather X-rays emitted by black holes and neutron stars in the 1-250ke V band,and enable Chinese scientists to explore the distribution and property of these mysterious sources–with their own data,for the first time in history,in the next four years or more.In August,BCAS reporter XIN Ling had the privilege to meet astrophysicist ZHANG Shuangnan of the Institute of High Energy Physics(IHEP),Chinese Academy of Sciences who is now principal investigator of the HXMT project.During the interview,ZHANG talked about the telescope’s research missions,potential challenges in orbit,as well as its history and lessons to be learned in developing one of the nation’s first science satellites. 相似文献