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Scaling Laws between Population and Facility Densities Found A research team led by Prof. Ha-Woong Jeong of the Department of Physics, KAIST, has found a positive correlation between facilities and population densities, university authorities said on Tuesday (Sept. 2). The research was conducted in the cooperation with a research team of Prof. Beom-Jun Kim at Sungkyunkwan University. The researchers investigated the ideal relation between the population and the facilities within the framework of an economic mechanism governing microdynamics. In previous studies based on the global optimization of facility positions in minimizing the overall travel distance between people and facilities, the relation between population and facilities should follow a simple law. The new empirical analysis, however, determined that the law is not a fixed value but spreads in a broad range depending on facility types. To explain this discrepancy, the researchers proposed a model based on economic mechanism that mimics the competitive balance between the profit of the facilities and the social opportunity cost for population. The results were published in the Proceedings of the National Academy of Sciences of the United States on Aug. 25.
2009.09.04 View 19032
KAIST Professor Whang Turns VLDB Journal Into One of the Best in Its Field Kyu-Young Whang, a Distinguished Professor at KAIST’s Computer Science Department, has developed The VLDB Journal into one of the world’s best journals on database technology. Professor Whang, Editor-in-Chief of The VLDB Journal, is credited for the journal’s remarkable success evidenced by the rise of the publication’s Science Citation Index (SCI) impact factor from 3.818 to 6.8 in the period of one year. This placed the VLDB in the first place amongst 99 information systems journals and 44 hardware and architecture-related journals registered with the SCI. With only the exception of the Survey Journal, this makes The VLDB Journal the best in computer science. The VLDB Journal is a quarterly journal published on behalf of the VLDB Endowment. The journal, launched in 1992, is dedicated to the publication of scholarly contributions to the advancement of information system architectures, the impact of technological advancements on information systems, and the development of novel database applications. The VLDB Journal’s closest competitors in database technology, IEEE Transactions on Knowledge and Data Engineering and ACM Transactions on Database Systems, received an impact factor of 2.236 and 1.613 respectively. Comparatively, Professor Whang’s journal retains an impact factor nearly 3 to 4 times greater. During Professor Whang’s six-year term as Editor-in-Chief, he has actively pursued the use of innovative ideas, strengthened the board of editors, standardized the length of review time, and made the journal much more accessible through the Internet. Furthermore, he drastically reduced publication time and sought a policy that focused more on the journal’s readers, which led to The VLDB Journal’s SCI impact factor rising from 1.149 (2002) to 6.8 (2008). As one of The VLDB Journal’s founding members, Professor Whang has worked for the advancement of his journal tirelessly for 19 years with many accomplishments in database technology, including physical database design, determining the quality of a database, and the creation of a database management system. As a result, Professor Whang became the first IEEE fellow concerning domestic computer science. He is also a trustee of The VLDB Endowment, a fellow of the Korean Academy of Science and Technology, and of course, a Distinguished Professor at KAIST.
2009.07.16 View 22062
KAIST Ranks 95th among World Universities Oct. 13, 2008 --KAIST is ranked 95th among Top 200 Universities of the World this year, scoring a notable increase from last year"s ranking of 132nd. KAIST, Seoul National University which was placed 50th, and POSTECH ranked 188th became the only three institutions of higher education in Korea to make it to the list, called "The Times Higher Education -- QS World University Rankings." KAIST"s advancement was more conspicuous in specific area evaluations. In the area of Engineering and Information Technology, it is ranked 34th (49th last year), in Natural Sciences 46th (86th last year), and in Biological Sciences and Biotechnology 134th (166th last year). While North America dominates the ranking with 42 universities on the list, Europe and Asia Pacific are also well represented with 36 and 22 institutions, respectively. The list, compiled by The Times (of London) newspaper annually, is topped by Harvard University (USA), followed by Yale University (USA) and University of Cambridge (United Kingdom). Last year, only KAIST and SNU were included in the top 200 list. This year, Yonsei University raised its ranking to 203rd from last year"s 223rd while Korea University improved from 243rd to 236th, showing overall improvement of universities in Korea. Again this year, Japan and China had most of the top ranked universities in Asia, each sharing three in the top 50. University of Tokyo, ranked 19th, led all Japanese universities; Kyoto University was placed 25th and Osaka University 44th. University of Hong Kong was listed 26th, followed by Hong Kong University of Science and Technology on 39th and the Chinese University of Hong Kong on 42nd. The Times Higher Education--QS World University Rankings evaluates four main categories: quality of research, globalization, and quality of education and work of graduates in society. The evaluation also considers academic peer review, citations per faculty, recruiter review, international faculty, international students and faculty-student ratio. QS Top 100 Universities 2008 Source: QS Quacquarelli Symonds (www.topuniversities.com) Copyright?004-2008QSQuacquarelliSymondsLtd. 1 HARVARD University United States 2 YALE University United States 3 University of CAMBRIDGE United Kingdom 4 University of OXFORD United Kingdom 5 CALIFORNIA Institute of Technology (Calt... United States 6 IMPERIAL College London United Kingdom 7 UCL (University College London) United Kingdom 8 University of CHICAGO United States 9 MASSACHUSETTS Institute of Technology (M... United States 10 COLUMBIA University United States 11 University of PENNSYLVANIA United States 12 PRINCETON University United States 13= DUKE University United States 13= JOHNS HOPKINS University United States 15 CORNELL University United States 16 AUSTRALIAN National University Australia 17 STANFORD University United States 18 University of MICHIGAN United States 19 University of TOKYO Japan 20 MCGILL University Canada 21 CARNEGIE MELLON University United States 22 KING"S College London United Kingdom 23 University of EDINBURGH United Kingdom 24 ETH Zurich (Swiss Federal Institute of T... Switzerland 25 KYOTO University Japan 26 University of HONG KONG Hong Kong 27 BROWN University United States 28 ?ole Normale Sup?ieure, PARIS France 29 University of MANCHESTER United Kingdom 30= National University of SINGAPORE(NUS) Singapore 30= University of CALIFORNIA, Los Angeles (U... United States 32 University of BRISTOL United Kingdom 33 NORTHWESTERN University United States 34= ?OLE POLYTECHNIQUE France 34= University of BRITISH COLUMBIA Canada 36 University of California, BERKELEY United States 37 The University of SYDNEY Australia 38 The University of MELBOURNE Australia 39 HONG KONG University of Science & Techno... Hong Kong 40 NEW YORK University (NYU) United States 41 University of TORONTO Canada 42 The CHINESE University of Hong Kong Hong Kong 43 University of QUEENSLAND Australia 44 OSAKA University Japan 45 University of NEW SOUTH WALES Australia 46 BOSTON University United States 47 MONASH University Australia 48 University of COPENHAGEN Denmark 49 TRINITY College Dublin Ireland 50= Ecole Polytechnique F??ale de LAUSANNE... Switzerland 50= PEKING University China 50= SEOUL National University Korea, South 53 University of AMSTERDAM Netherlands 54 DARTMOUTH College United States 55 University of WISCONSIN-Madison United States 56 TSINGHUA University China 57 HEIDELBERG Universit? Germany 58 University of CALIFORNIA, San Diego United States 59 University of WASHINGTON United States 60 WASHINGTON University in St. Louis United States 61 TOKYO Institute of Technology Japan 62 EMORY University United States 63 UPPSALA University Sweden 64 LEIDEN University Netherlands 65 The University of AUCKLAND New Zealand 66 LONDON School of Economics and Political... United Kingdom 67 UTRECHT University Netherlands 68 University of GENEVA Switzerland 69 University of WARWICK United Kingdom 70 University of TEXAS at Austin United States 71 University of ILLINOIS United States 72 Katholieke Universiteit LEUVEN Belgium 73 University of GLASGOW United Kingdom 74 University of ALBERTA Canada 75 University of BIRMINGHAM United Kingdom 76 University of SHEFFIELD United Kingdom 77 NANYANG Technological University Singapore 78= DELFT University of Technology Netherlands 78= RICE University United States 78= Technische Universit? M?CHEN Germany 81= University of AARHUS Denmark 81= University of YORK United Kingdom 83= GEORGIA Institute of Technology United States 83= The University of WESTERN AUSTRALIA Australia 83= University of ST ANDREWS United Kingdom 86 University of NOTTINGHAM United Kingdom 87 University of MINNESOTA United States 88 LUND University Sweden 89 University of CALIFORNIA, Davis United States 90 CASE WESTERN RESERVE University United States 91= Universit?de Montr?l Canada 91= University of HELSINKI Finland 93= Hebrew University of JERUSALEM Israel 93= Ludwig-Maximilians-Universit? M?chen Germany 95 KAIST - Korea Advanced Institute of Scie... Korea, South 96 University of VIRGINIA United States 97 University of PITTSBURGH United States 98 University of CALIFORNIA, Santa Barbara United States 99= PURDUE University United States 99= University of SOUTHAMPTON United Kingdom
2008.10.14 View 21710
KAIST Professor Exposes Structural Dynamics of Protein in Solution -- Dr. Hyot-Cherl Ihee"s 3-Year Research Is Valuable in Pharmaceutical Application Prof. Hyot-Cherl Ihee and his team at the Department of Chemistry, KAIST, has successfully unveiled the structural dynamics of protein in solution as a result of more than three years" research work. Nature Methods, a sister publication of the authoritative science magazine Nature, published the treatise, titled "Tracking the structural dynamics of proteins in solution using time-resolved wide-angle X-ray scattering" in its Sept. 22 online edition. The research paper will be carried in the magazine"s printed version in its October edition, according to Dr. Lee who is its correspondence author. In May 2005, Prof. Ihee successfully photographed the structural dynamics of protein in solid state and his findings were published in the Proceedings of National Academy of Science of the United States. As protein normally exists in human body in solution, not in solid state, he directed his research to developing the technology to capture protein"s dynamics in resolved state. In July that year, Prof. Ihee succeeded in measuring the structural changes of simple organic molecules in real time. He further developed the technology to uncover the structural dynamics of hemoglobin, myoglobin and cytochrome C. Prof. Ihee"s research, helped with the Education-Science-Technology Ministry"s Creative Research Promotion Fund, can be applied to new pharmaceutical development projects as well as nanotechnology development, according to KAIST officials. Prof. Ihee who earned his doctorate at California Institute of Technology in 1994 began teaching at KAIST in 2003. He won the Young Scientist Award given by the Korean government in 2006.
2008.09.22 View 18918
KAIST, GS Caltex Jointly Develop New Bacteria to Produce Biobutanol KAIST and GS Caltex, Korea"s second-largest refiner, have jointly developed a new strain of bacteria to produce biobutanol, which is regarded as a promising next-generation biofuel, KAIST authorities said on Monday (June 2). A research team led by Prof. Sang-Yup Lee of the Chemical and Biomolecular Engineering Department and researchers of GS Caltex succeeded in developing an improved strain of bacteria which enables to produce a large amount of biobutanol in the process of fermenting biomass. The research team has applied for international patent for the new technology. Biomass refers to living and recently dead biological material that can be used as fuel or for industrial production. It usually refers to plant matter grown for use as biofuel, but it also includes plant or animal matter used for production of fibers, chemicals or heat. In the 1970s and 1980s when scientists began researching the possibilities of alternative fuels, bacteria were used in the process of fermenting biomass. This ABE (acetone, butanol, ethanol) fermentation process yields butanol, acetone, and ethanol in a ratio of 6:3:1, respectively. Acetone produced in this process is not usable. The newly developed technology to produce biobutanol has an advantage of lowering production cost by eliminating the process to separate acetone from butanol. This has been made possible by improving the bacteria used for the fermentation in metabolic engineering terms, and producing butanol and ethanol only in a ratio of 6:1, while curbing the generation of acetone. In comparison with bioethanol, also a biofuel mixture which is currently under widespread use in some countries, butanol is more easily transported with gasoline and diesel through pipelines because of its lower tendency to separate from the fuel when contaminated with water. Butanol is also less corrosive than ethanol, another reason its transport through pipeline is preferable. Global interest in full utilization of biomass and development of other alternative energy including biobutanol has deepened in recent years, as crude oil prices have skyrocketed to record levels and climate changes resulting from the excessive use of fossil fuel have been causing various problems around the world.
2008.06.04 View 17240
Cooperation Agreement with Ajou Motor College Cooperation Agreement with Ajou Motor College KAIST Graduate School of Automobile Technology to sign a cooperation agreement with Ajou Motor College KAIST Graduate School of Automobile Technology (GSAT) signed a cooperation agreement with Ajou Motor College (AMC) on July 18th. Under the agreement, the both schools will share education and research facilities and promote mutual cooperation for joint education and researches. Lawmaker Geun-Chan Ryu, KAIST Vice President of Budget & Planning Ji-Won Yang, GSAT Dean Suck-Joo Na, AMC Dean Soo-Hoon Lee, etc. attended the ceremony.
2007.07.24 View 19818
Maximum Yield Amino Acid-Producing Microorganism Developed with use of System Biotechnology Maximum Yield Amino Acid-Producing Microorganism Developed with use of System Biotechnology A team led by Sang-Yup Lee, a distinguished professor of Chemical and Biomolecular Engineering and chair professor of LG Chemical, has succeeded in developing maximum yield L-valine-producing microorganism by using System Biotechnology methods. The research results will be published at the April fourth week (April 23 - 27) edition of the Proceedings of the National Academy of Sciences (PNAS) of the USA. Prof. Lee’s team has developed maximum yield amino acid-producing microorganism (target substance of L-valine, an essential amino-acid) by using microorganism E cell system and simulation methods. His team produced initial producing microorganism by selectively operating necessary parts in colon bacillus genome and excavated preliminary target gene which is to newly be operated through transcriptome analysis using DNA chips. Then they performed a great amount of gene deletion experiment on computer by using MBEL979, E-cells of colon bacillus, and excavated secondary engineering targets. And they finally succeeded in developing maximum yield valine-producing microorganism that can extract 37.8 grams of valine from 100 grams of glucose by applying experiment results to the actual development of microorganism so as to achieve the optimization of metabolic flux in cells, Prof. Lee said, “Since successfully used for the development of microorganism on a systematic system level, system biotechnology methods are expected to significantly contribute to the development of all biotechnology-relevant industries. At the beginning, we had huge obstacles in fusing IT and BT, but my team mates cleverly overcame such obstacles, hence I’m very proud of them.” The producing microorganism and its developing methods are pending international applications (PCT).
2007.04.26 View 19922
Austrian president and first lady visit KAIST Austrian President Heinz Fischer and first lady Margit Fischer visited KAIST on April 4. HUBO and Albert HUBO, humanoid robots of KAIST, welcomed Mr. and Mrs. President from Austria by giving bouquets to and shaking hands with them. HUBO also showed self-introduction, facial expression, and Tae-Geuk-Kwon demonstration. KAIST President Nam-Pyo Suh said at his welcoming remarks, “KAIST has talented young people as its students, and over 32,000 KAIST graduates are playing very important roles at large conglomerates and schools. To become a world-class university, KAIST is promoting active global exchange programs and hopes to have joint programs with Austrian universities such as the Technical University of Vienna, etc.” Austrian President Heinz Fischer said at his reply, “I am deeply impressed with KAIST, the final place visited during my trip to Korea. Albert HUBO evidently gave me a tip concerning the high technical power of KAIST. Austria is now on a strong education innovation program, and I hope to establish a long-term cooperation programs with distinguished Korean universities like KAIST.” After the ceremony, Mr. and Mrs. President from Austria, Mr. and Mrs. President of KAIST, and distinguished guests had a 30-minute long luncheon at the grand seminar room.
2007.04.12 View 16035
Professor Seong-Ihl Woo Develops New High-Speed Research Method Professor Seong-Ihl Woo Develops New High-Speed Research Method Reduce research periods and expenses for thin film materials several ten times Posted on the online version of Proceedings of National Academy of Sciences of the United States of America (PNAS) on January 9 A team led by Seong-Ihl Woo, a professor of KAIST Department of Chemical & Biomolecular Engineering and the director of the Center for Ultramicrochemical Process Systems, has developed a high-speed research method that can maximize research performances and posted the relevant contents on the online version of Proceedings of National Academy of Sciences of the United States of America (PNAS), a distinguished scientific journal, on January 9, 2007. Professor Woo’s team has developed a high-speed research method that can fabricate several tens or several thousands of thin films with different compositions (mixing ratio) at the same time and carry out structural analysis and performance evaluation more than ten times faster and accurately, which leads to the shortening of the research processes of thin film materials. This is an epoch-making method that can reduce research periods and expenses several ten times or more, compared to the previous methods. The qualities of final products of electronic materials, displays, and semi-conductors depend on the features of thin film materials. Averagely, it takes about two weeks or longer to fabricate a functional thin film and analyze and evaluate its performances. In order to fabricate thin film materials in need successfully, more than several thousand times of tests are required. The existing thin film-fabricating equipment is expensive one demanding high-degree vacuum, such as chemical vapor deposition, sputtering, physical vapor deposition, laser evaporation, and so on. In order to fabricate thin films of various compositions with this equipment, a several million won-worth target (solid-state raw material) and precursors (volatile organic metal compound) pricing several hundreds won per gram are required. Therefore, huge amount of experiment expense is demanded for fabrication of several ten thousands of thin films with various compositions. Professor Woo’s team has developed ‘combinatorial droplet chemical deposition’ equipment, which does not demand high-degree vacuum and is automated by computers and robots, by using a new high-speed research measure. The equipment is priced at about 1/5 of the existing equipment and easy for maintenance. This equipment uses cheap reagents, instead of expensive raw materials. Reagents necessary to form required compositions are dissolved in water or proper solvents, and then applied by high frequencies to make several micrometer-scaled droplets (fine liquid droplet). Theses droplets are moved by nitrogen and dropped onto a substrate, which is to be fabricated into a thin film, and then subsequent thermal treatment is applied to the substrate to fabricate a thin film of required composition. At this moment, several tens or several hundreds of thin films with various compositions can be fabricated at the same time by reducing the size of thin film specimens into millimeter scale with the use of shade mask and adjusting vaporization time with masks, the moving speed of which can be adjusted. The expenses for materials necessary for the fabrication of thin films with this equipment amount to several ten thousands won per 100 grams, which is in the range of 1/100 and 1/10 of the previous methods, and the research period can be shortened into one of several tenth. “If this new method is applied to the development of elements in the fields of core energy, material and health, which have not been discovered by the existing research methods so far, as well as researches in thin film material field, substantial effects will be brought,” said Professor Woo. ‘Combinatorial droplet chemical vaporization’ equipment is pending a domestic patent application and international patent applications at Japan and Germany. This equipment will be produced by order and provided to general researchers.
2007.02.02 View 23016