college+of+engineering
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Super-Fast Internet Data Chip Developed
A KAIST research team led by Prof. Kyoung-Hoon Yang of the Electrical Engineering & Computer Science Department developed a super-fast chip that could lead to huge advancements in broadband Internet technology, the Korean Ministry of Education, Science and Technology said on Thursday (June 26).
The multiplexer chip is the first of its kind to be developed using the quantum effect of resonant tunnelling diode, according to the Ministry.
The integrated circuit chip built at the university laboratory has an operating speed of 45 gigabits per second (Gb/s), while using roughly 75 percent less energy than the previous version. The speed enables the transfer of about 4 full-length movies in one second.
The best operational broadband Internet services provide users with data transfer speed of 40 Gb/s, while most other high-speed online connections offer 10 Gb/s.
"Besides speed, the greatest achievement is low energy use," Prof. Yang said. He stressed that energy use in chips is a crucial factor because power creates heat that can melt circuits and make them inoperable.
"By cutting down on energy use, the new chips can be made smaller and with faster data transfer speed," the scientist said.
He added that efforts are underway to increase operational speed to 100 Gb/s, with energy consumption to be cut to 10 percent of current chips like the high electron mobility transistor, the heterojunction bipolar transistor and the complementary metal oxide semiconductor.
The researcher speculated that such revolutionary chips could be developed in 1-2 years and become the new benchmark in this field since existing chips have limited development capabilities.
The project has received funding from the Education-Science-Technology Ministry since 2000. The Ministry"s financial support will last until 2010.
2008.06.26 View 12104 -
KAIST Opens M&S Technology Research Center
KAIST held an opening ceremony for a new defense research center focusing on modelling & simulation located at its main campus in Daejeon on Thursday (June 19).
The opening of the M&S Technology Research Center is aimed at developing technologies and processes to test, practice and operate newly-developed precision and micro weapons systems in virtual space. The center will be supported by two state-run defense agencies, the Defense Acquisition Program Administration and the Korean Agency for Defense Development.
The new research center is expected to receive a total of 11.5 billion won (US$11.2 million) research grants from the state for the next eight years until 2016. The center will be involved in the development of sophisticated, complex and inter-related weapons system and training research personnel in the specialized area.
The research center will undertake a total of 21 specific projects in collaboration with seven other universities in Korea. Also joining the projects are such overseas institutions as Georgia Institute of Technology and the U.S. Naval Post-Graduate School, and private defense solution providers including Posdata, Samsung Thales and LIG Nex 1.
The opening of the research center comes at a time when modelling and simulation gain growing importance as today"s armies employ more sophisticated, complex and inter-related. weapons systems and equipment than ever before.
Tae-Uk Lee, director of the research center said: "The opening of the center will spur development of operational technologies of precision and micro weapons system on our own, departing from dependence on advanced countries."
2008.06.19 View 15235 -
New System to Generate Extreme-Ultraviolet Light Developed
A KAIST research team led by Prof. Seung-Woo Kim of the Mechanical Engineering Department developed a new system for generating coherent extreme-ultraviolet (EUV) light, school authorities announced on June 5.
The new system comes in a metallic nano-structure consisting of a two-dimensional array of gold "bow tie" elements on a sapphire plate. The new process was featured in the British journal Nature on June 5.
The properties of coherent EUV light make it a prime candidate for exciting technological applications. But, at present, the equipment needed to generate the short-wavelength light is costly and bulky. The system developed by Prof. Kim"s research team is expected to reduce both cost and bulk.
The new system uses the conventional principle of high-harmonic generation via the interaction of a femtosecond laser pulse with a gas, but adopts the novel concept of amplifying light by way of local plasmon field enhancement, according to the research team.
2008.06.10 View 12414 -
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 11712 -
International Science Journal Spotlights Korean Biotechnology
Biotechnology Journal published by German-based Wiley-VCH, one of the world"s major scientific and technical publishers, devoted its entire special edition for May to biotechnology in Korea.
The monthly journal"s special issue was planned by KAIST Professor Sang-Yup Lee of the Chemical and Biomolecular Engineering Department who is one of the journal"s two editors-in-chief.
The special issue outlines the current status and future prospect of biotechnology in Korea, and presents five review papers and eight original papers by leading Korean biotech researchers to showcase recent developments in Korean biotechnology. Among these papers, a review by Dr. Byung-Hwan Hyeon and his colleagues describes in detail the Korean biotechnology strategies represented by "Bio-Vision 2016," and another by Dr. Ji-Hyun Kim and his collaborators presents recent progress in microbial genome projects in Korea.
In the editorial of the journal, Prof. Lee said, "Heavy industry and IT industry have been the two drivers of Korean economic growth. Korea is now considering biotechnology as its next generation growth engine."
Underscoring the growing importance of fusion research, he mentioned that integration of biotechnology with information technology and nanotechnology is advancing rapidly in Korea. Another special edition of Biotechnology Journal focusing on these exciting biotech developments in Korea is planned for the future.
2008.05.20 View 12839 -
World Micromachine Summit to Open in Daejeon
The 2008 World Micromachine Summit will be held at Hotel Riviera in Daejeon for a four-day run from April 30, drawing worldwide industrial and academic leaders in the micro-nano-technology (MNT).
Organizers say that 76 delegates and 56 observers from 19 countries and regions will take part in this year"s Micromachine Summit. Prof. Cho Young-ho of the Department of Bio & Brain Engineering of KAIST will play host to the annual event.
Participants will discuss the progress of micro-nano-technology in each country and region development of national policies in this area. The Summit was first organized in 1995 by the Micromachine Center of Japan with representatives from 10 countries participating. They were Australia, Canada, Germany, Italy, Japan, the Netherlands, Switzerland, the United Kingdom, and the United States.
Korea was first invited to the conference in 1999. Since then, Korea has played an active role in promoting technological exchanges among nations and has conducted presentations and discussions on major technological breakthroughs.
During the four-day run, each delegation will outline their country"s policies and strategies and present local features on focused areas including this year"s main theme, "Micromachine towards Technology Convergence Era."
The gathering will offer a valuable opportunity for the participants to exchange and collect information on the current state of the MNT, as well as providing a forum for worldwide networking of leaders in the area.
2008.04.29 View 12124 -
Prof. Sang-Yup Lee Co-Editor-in-Chief of Biotechnology Journal
Prof. Sang-Yup Lee of KAIST"s Department of Chemical and Biomolecular Engineering has been appointed as co-editor-in-chief of Biotechnology Journal published by Wiley-VCH, a German-based leading technical publisher, university authorities said Tuesday, April 15.
Launched in January 2006, Biotechnology Journal has covered biological process, brain ailments, biological medicine, protein design and other applied bio-sciences.
Starting in May, Lee will be responsible for setting and overseeing editorial direction of the journal along with Prof. Alois Jungbauer of Austria.
Professor Lee has been gaining recognition in and outside the country for his research on metabolic engineering. In 2002, he was chosen as one of Asia"s next generation leaders by the World Economic Forum. In 2007, Lee was elected a fellow of the American Association for the Advancement of Science, the world"s largest general scientific society. He is also serving as an editorial member of more than ten international journals including Biotechnology & Bioengineering.
Awards and honors include the First Young Scientist"s Award from the President of Korea, the Scientist of the Month Award from the Korean Ministry of Science and Technology, the Best Patent Award from Korean Intellectual Property Office, the Citation Classic Award from ISI, USA, and the First Elmer Gaden Award (1999 Best Paper Award) from Biotechnology and Bioengineering (John Wiley & Sons, USA) at the ACS National meeting.
2008.04.16 View 12807 -
2008 Commencement Ceremony Held
The 2008 KAIST Commencement Ceremony was held on Feb. 29 at the KAIST Amphitheater in the presence of KAIST President Nam Pyo Suh, U.S. Ambassador to Korea Alexander Vershbow, alumni representatives and parents.
Other dignitaries on hand included National Assemblymen Sang-Kee Suh, Chang-Sun Hong and Sang-Min Lee; and Daejoen City Major Sung-Hyo Park.
President Suh and Vice President Soon-Heung Chang presented degrees to each of the 1,321 graduates (200 doctors, 725 masters and 396 bachelors) instead of just to representatives. Since its inception in 1971, KAIST has produced 7,067 Ph.D. graduates, 18,636 master"s degree holders and 8,998 bachelor"s degree holders. This year, 40 percent of the Ph.D. graduates, 79, were in their twenties upon graduation.
President Suh called on the graduates to return the favor they received from society by making their share of contributions to humanity. "You were chosen to be students of this unique university because the Korean people -- not only KAIST professors and staff, but also ordinary taxpayers -- believe that outstanding young people like you can change the world in which we live for the better. Now it is time for you to pay back their support," he said.
Notable graduates of this year include So-Yeon Yi, 29, the first Korean female astronaut candidate, who earned her doctorate degree in bio and brain engineering. She was granted a special award in recognition of her role in advancing space science in Korea but she could not attend the graduation ceremony due to her training schedule in Russia which will continue until April.
Eun-Gyu Oh, 26, was the youngest doctorate recipient in the ceremony and Won Hye-jeong, 21, recorded the top undergraduate GPA with a score of 4.20 over 4.3. Civil and environmental engineering major Seung-Hee Park, 28, published a total of eight papers in major international journals while attending KAIST and two more papers are currently under review.
So-Yeon Yi said: ``I frequently stayed up all night to research and write the paper. It was tough experience for me. Thanks to ceaseless support from professors and colleagues, however, I was able to complete the task,"" she said. ``I have done my best in studying, exercising and so on. I"m sure that my active, participatory attitude brought about this honorable moment.""
She is now training at Gagarin Cosmonaut Training Center near Moscow as a replacement astronaut in case Koh San, 31, who is to be the first Korean astronaut, is unable to go into orbit.
Koh and Yi were selected from more than 36,000 applicants last year. Koh was finally picked as the primary candidate last September. The two are serving as space ambassadors appointed by the Ministry of Science & Technology.
2008.03.09 View 14265 -
KAIST Retains Top Spot in Systems and Software Engineering
For two consecutive years, KAIST, Korea"s top science and technology university, topped the list of the world"s most published institutions in the field of systems and software engineering, according to a survey conducted by the Journal of Systems and Software.
The survey assessed systems and software engineering scholars and institutions by the number of papers they published in six major journals of the field from 2001 to 2005.
Geographically, seven of the top 15 institutions are from the Asia-Pacific region, six from the United States and two from Europe. In previous assessments, institutions from the Americas took the lion"s share.
KAIST topped the list of 15 in 2006 and again in 2007. The runner-up for 2007 is China"s National Chiao Tung University. Norway"s Simula Research Laboratory and Korea"s Seoul National University were ranked third and fourth, respectively. Rounding up the top ten list are Carnegie Mellon University, Georgia Institute of Technology, Iowa State University, and University of Texas at Dallas, all from the United States; and City University of Hong Kong and Hong Kong Polytechnic University.
Two KAIST professors, Chung Chin-Wan and Kim Myoung-Ho, were among the top ten most published scholars. Chung"s papers were mostly about his researches in database, web, and multimedia, while Kim"s researches concerned database systems and distributed information processing.
The Journal of Systems and Software, a computer science journal specializing in the software systems, is published by Elsevier, the Dutch-based world"s largest publisher of medical and scientific literature.
2008.02.28 View 12416
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KAIST Holds Symposium on Metabolic Engineering
The KAIST Institute for Bio-Century held a symposium on metabolic engineering at the auditorium of the KAIST"s Applied Engineering Bldg. on Thursday, Feb. 14, in cooperation with the BK21 Chemical Engineering Research Team.
The symposium focused on researches on bio-refinery program and bio-energy production in connection with steep hikes in oil prices and worsening environmental problems, including global warming.
Seven Korean experts presented their views on metabolic engineering strategies to effectively produce bio-energy and biofuel and the latest research trends.
Among the speakers, Prof. Lee Sang-yup, co-head of the KAIST Institute for Bio-Century, spoke on the theme of "Metabolic Engineering for Bio-refinery and Bio-energy.
The symposium provided an opportunity to take a glimpse into the latest research trends of metabolic engineering technology. Metabolic engineering technology is crucial to producing chemicals, energy and other substances from renewable biomass materials in a departure from heavy reliance on crude oil.
2008.02.14 View 12607
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KAIST, Nokia Launch Joint Research Project
Prof. Kyung Wook Baik of KAIST and his research team in the Department of Materials Science and Engineering announced the launch of a joint research project with Nokia, the world"s leading mobile phone supplier, on Jan. 24.
It is the first time that Nokia runs a joint research project with a Korean university or research institute.
Under the agreement, KAIST will develop a new ultrasonic welding process to bond various modules for mobile phones. The ultrasonic welding process, an indigenous technology patented by the research team led by Prof. Baik, is expected to contribute greatly to improving productivity in manufacturing mobile phones, as well as making it smaller and lighter.
The research period is six month and the project fund amounts to 35,000 euros.
2008.01.29 View 11378
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Int'l Herald Tribune Carries Feature Story on KAIST
International Herald Tribune carried a feature story on KAIST"s ongoing reform efforts on the front page of its Jan. 19-20 edition. The following is the full text of the report.
http://www.iht.com/articles/2008/01/18/asia/school.php
South Korean science prepares to take on the world
By Choe Sang-Hun
Friday, January 18, 2008
DAEJEON, South Korea: In Professor Cho Dong Ho"s laboratory at Kaist, South Korea"s top science and technology university, researchers are trying to develop technology that could let you fold a notebook-size electronic display and carry it in your pocket like a handkerchief.
It"s too early to say when something like this might be commercially available. But the experiment has already achieved one important breakthrough: it has mobilized professors from eight departments to collaborate on an idea proposed by a student.
This arrangement is almost unheard of in South Korea, where the norm is for a senior professor to dictate research projects to his own cloistered team. But it"s only one change afoot at this government-financed university, which has ambitions to transform the culture of South Korean science, and more.
"When we first got the student"s idea on what a future display should look like, we thought it was crazy, stuff from science fiction," said Cho, director of Kaist"s Institute for Information Technology Convergence. "But under our new president, we are being urged to try things no one else is likely to."
That university president is Suh Nam Pyo, 71, a mechanical engineer who used to be an administrator at the Massachusetts Institute of Technology and who is spearheading closely watched changes that are expected to have ramifications far beyond this campus 90 minutes by car south of Seoul.
His moves so far, from requiring professors to teach in English to basing student admissions on factors other than test scores, are aimed at making the university, and by extension South Korean society, much more competitive on a world scale.
When the South Korean government hired Suh in 2006 to shake up the state-financed Korean Advanced Institute of Science and Technology (which formally changed its name to its acronym, Kaist, on Jan. 1) the country"s leading schools faced a crisis. The old system, which guaranteed free tuition to lure promising students into science and technology, the drivers of South Korea"s industrial growth, was no longer working as well as it used to.
Prosperity was allowing those young people to choose fields of study once viewed as luxuries, like literature and history. Worse, increasing numbers were choosing to study abroad, mostly in the United States, and then not returning home. The fear was that South Korean institutions and enterprises would be gutted of expertise.
That concern was voiced at a news conference Monday by the president-elect, Lee Myung Bak, who said the educational system "isn"t producing talent that can compete globally."
Kaist, which was established in 1971 with foreign aid, has a special place in South Korean education. The military strongman Park Chung Hee recruited the brightest young people to train there as scientists and engineers. Villagers put up a large banner to celebrate whenever a local child was admitted.
"When I was a student here in the mid-1980s, some students stopped before the national flag at the library in the morning and observed a moment of silence, vowing to dedicate ourselves to the nation"s industrial development," said Cho Byung Jin, a professor of electrical engineering.
Since his arrival, Suh has become the most talked-about campus reformer in South Korea by taking on some of Kaist"s most hallowed traditions.
In a first for a Korean university, Suh has insisted that all classes eventually be taught in English, starting with those aimed at freshmen.
"I want Kaist students to work all over the world," Suh said last week. "I don"t want them to be like other Koreans who attend international conferences and have a lunch among themselves because they are afraid of speaking in English."
The move to English supports another of his changes: opening undergraduate degree programs to talented non-Koreans. Last year Kaist filled 51 of its 700 admission slots with foreign students on full scholarships. Meanwhile, he has ended free tuition for all; any student whose grade average falls below a B must pay up to $16,000 a year.
"My dream is to make Kaist a globalized university, one of the best universities in the world," he said.
In what may have been his most daring move, the university denied tenure to 15 of the 35 professors who applied last September. Until then, few if any applicants had failed tenure review in the university"s 36-year history.
In this education-obsessed country, Suh"s actions have been watched intensely for their broader impact. More than 82 percent of all high school graduates go on to higher education. What university a South Korean attends in his 20s can determine his position and salary in his 50s, a factor behind recent expos?of prominent South Koreans who faked prestigious diplomas.
The system is widely deplored but seldom challenged. From kindergarten, a child"s life is shaped largely by a single goal: doing well in examinations, particularly the all-important national college entrance exam. High school students plod through rote learning from dawn to dusk. Tutoring by "exam doctors" is a multibillion-dollar industry. During vacations, students attend private cram schools, which numbered 33,000 in 2006.
One result is a disciplined and conformist work force, an advantage when South Korea rapidly industrialized by copying technology from others. But now, with the country trying to climb the innovation ladder, the rigid school system is proving a stumbling block.
The nation"s highly hierarchical ways are often cited to explain how Hwang Woo Suk, the disgraced South Korean scientist who claimed he had produced stems cells from a cloned human embryo, could fabricate research findings with the complicity of junior associates.
The ambitious head overseas. Last year, 62,392 South Korean students were enrolled in U.S. colleges and universities, making them the third-largest foreign student group, after Indians (83,833) and Chinese (67,723), according to the U.S. Institute of International Education.
Some start earlier. About 35,000 South Korean children below college age go abroad each year, most to the United States to learn English.
Against this backdrop, Kaist has been experimenting with test-free admissions. For this year"s class, it brought applicants in for interviews and debates and make presentations while professors looked for creativity and leadership.
"About 20 percent of the students who formerly would have won admission didn"t make it under our new guidelines," Suh said. "We are looking for rough diamonds."
Challenging the status quo can be risky.
The Science and Technology Ministry, which oversees Kaist, had first looked outside South Korea for someone to lead the changes, choosing the Nobel physics laureate Robert Laughlin, who became the first foreigner to head a South Korean university in 2004. But he returned to Stanford University within two years, after the faculty rebelled against him for attempting some of the same changes Suh has instituted, accusing him, among other things, of insensitivity to Korean ways.
Suh"s Korean roots and experience shield him from such charges. He did not emigrate to the United States until he was 18 and has worked at Korean universities as well as serving as assistant director at the U.S. National Science Foundation in the 1980s and head of MIT"s department of mechanical engineering from 1991 to 2001.
"Reform entails sacrifices, but even if we don"t reform, there will be sacrifices," Suh said. "The difference is that if we don"t reform and don"t encourage competition, it"s the best people who are sacrificed."
So far, Suh"s innovations have mostly received favorable reviews.
Education Minister Kim Shi Il called them a "very desirable way of making Korea"s universities more competitive globally." The newspaper JoongAng Daily (which publishes an English-language version in partnership with the IHT) praised him for "smashing the iron rice bowls" (ending guaranteed job security) for professors and said, "We must learn from Kaist."
Ewan Stewart, a British physicist who has taught at Kaist since 1999, said, "Many of the things President Suh is saying were things I felt should have been said a long time ago."
Chung Joo Yeon, a first-year student, said she accepted the need for classes in English, but complained that some professors had no experience teaching in the language.
But Cho, the electrical engineering professor, said: "It"s no longer a matter of choice. If we want to maintain our school"s standards, we must draw talents from countries around the world, and that means we must conduct our classes in English."
Meanwhile, Lee has promised that as president he will give universities more autonomy by taking the "government"s hands off" how they select their students.
2008.01.23 View 15591