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Quantum Mechanical Calculation Theory Developed
An Electron Density Functional Calculation Theory, based on the widely used quantum mechanical principles and yet accurate and with shortened calculation period, was developed by Korean research team.
*Electron Density Functional Calculation Theory: Theory that proves that it is possible to calculate energy and properties with only simple wave equations and electron densities.
The research was conducted by Professor Jeong Yoo Sung (Graduate School of EEWS) and Professor William Goddard with support from WCU Foster Project initiated by Ministry of Education, Science and Technology and Korea Research Foundation. The result was published in the Proceedings of the National Academy of Sciences Journal.
The research team corrected the error when performing quantum calculations that arises from the length of calculation time and incorrect assumptions and developed a theory and algorithm that is more accurate and faster. The use of wave equations in quantum mechanical calculations results in high accuracy but there is a rapid increase in calculation time and is therefore difficult to implement in large molecules with hundreds, or thousands of atoms. By implementing a low electron density variable with relatively less calculation work, the size of calculable molecule increases but the accuracy decreases.
The team focused on the interaction between electrons with different spins to improve upon the speed of calculation in the conventional accurate calculation. The team used the fact that the interaction between electrons with different spins increases as it comes closer together in accordance with the Pauli’s Exclusion Principle.
In addition the interaction between electrons are local and therefore can ignore the interactions between far away electrons and still get the total energy value. The team also took advantage of this fact and developed the algorithm that decreased calculation time hundredth fold.
Professor Jeong commented that, “So far most of the domestic achievements were made by focusing on integrative researches by calculation science and material design communities but these involved short time frames. In areas that required lengthy time frames like fundamentals and software development, there was no competitive advantage. However this research is significant in that a superior solution was developed domestically”.
2012.01.31 View 11830 -
Great Success!: 2011 Wearable Computer Contest
The 2011 Wearable Computer Contest (WCC) was held on the 28th and 29th of November at Seoul COEX. The WCC is hosted by KAIST and Korea Next Generation Computing Society and is an annual event.
A wearable computer allows the user to freely use the computer even a moving environment and involves the miniaturization, weight lightening to incorporate the computer into clothing. It is the fusion of IT technology and fashion and is opening new fields like entertainment, healthcare and other forms of fashion culture.
The competition selected 10 teams out of the 57 teams that applied that will participate in the finals.
The selected teams have to use smartphones to create a wearable computer that detects and uses the biorhythm of the wearer. A staff member commented that the requirement to use biorhythm reflected in many teams entering products related to health and safety, and body and entertainment.
The most notable of the products entered was the outfit that prevents bicycle accidents. The LED attached on the back shows the direction the bicycle is traveling, or if it is stopping and uses the smartphone as a camera to show the cyclist what’s going on behind him.
Other interesting products included a product that turned clothes into a movie theater. Whilst watching movies on the smartphone, sensors attached to the clothing give out vibrations, water vapor, smoke effect; essentially brining the 4D movie experience to each person.
In addition products like ▲LED jacket that turns music into light and vibration ▲a prosthetic arm using an electromyogram to move it ▲an exercise suit that detects regional exercise load and helps design a balanced exercise regime.
Kolon Industries Ltd. Provide the clothing for the finalists and the team that receives Kolon Special Award will be given the opportunity to commercialize the product.
2012.01.31 View 8941
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Professor Jang Soon Heung Appointed International Consultant of the Fukushima Nuclear Disaster Task Force
The Japanese government appointed Professor Jang Soon Heung (department of Nuclear and Quantum Engineering) as the International Consultant to the Fukushima Nuclear Disaster Task Force.
Professor Hatamura Yotaro of the Tokyo University is the head of the task force and is tasked with finding out the cause and extent of damage of the disaster and minimize social cost and expansion of damage along with prevent a similar disaster from occurring.
The International Consultants will independently advise and look over the findings of the task force.
The members include: Professor Jang Soon Heung (Professor of KAIST), Richard A. Meserve (Carnegie Research Center Director/Former Chairman of Nuclear Regulatory Commission), Andre-Claude Lacoste (Chairman of French Nuclear Safety Regulatory Commission), and Lars-Eirk Holm (Secretary General of Sweden Health and Welfare).
2012.01.31 View 8820
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New LEDs: Large Spectrum of Colors
Professor Yonghun Cho has discovered that LEDs with hexagonal pyramid structures can emit various colors of light.
LEDs, which have been leading the light revolution is a light emitting element that uses the characteristics of semiconductors to emit light upon passing a current, and is being used for lighting, TV, and various signaling devices.
In general, the white LED used for lighting has to be constructed by spraying yellow fluorescent material on a blue LED or by creating a complicated circuit where various LED chips function together.
Prof.Cho’s research team discovered the fact that when a small hexagonal pyramid structure is formed on the semiconductor composing the LED and a current is passed through this, then each side, edge, and point on the pyramid assumes different energies.
Due to the energy differences, lights of bluegreen, yellow, and orange were emitted from the side, edge, and points of the pyramid, respectively. This shows the prospect of displaying white light as well as that of many other colors.
Thus, applying the nanopyramidal structure to LEDs will allow the emission of light with a large spectrum with just the flow of the current, enabling a new type of LED light emitting particles that would display various colors from a single LED chip without the use of a fluorescent material.
Also, originally, LEDs have had limitations to its efficiency because of its structural characteristics where fluorescent materials had to be sprayed on, but the nanopyramidal structures will overcome this structural barrier to create brighter light
2012.01.31 View 7984
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'Scientist-Engineer of the Month' for December: Professor Choi Joon Ho
Professor Choi Joon Ho (department of Biological Sciences) was made ‘Scientist-Engineer of December’ for his discovery of new gene (twenty-four) that helps biorhythm and proving that this gene helps control biorhythm.
Professor Choi published 100 dissertations over the past 25 years and made significant advancements in the field of molecular virus and neurobiology.
In 1995 Professor Choi uncovered the fact that the NS3 protein in C type hepatitis function as RNA helicase thereby opening the path to developing a cure for C type hepatitis; this is an international patent with Chiron corporation. The result was published in Biochemical and Biophysical Research Communications Journal and was the most domestically referred to dissertation in biological sciences in 1999.
In addition Professor Choi published in Nature magazine in 1999, a dissertation that uncovered the fact that the DNA of papillomar virus has another protein (hSNF5) that direct it apart from ordinary proteins.
In 2000~2005 Professor Choi published many dissertations in journals like Immunity, Cancer Research, Molecular and Cellular Biology, Oncogene, Journal of Virology, and etc.
Professor Choi screened over 10,000 species of pomace fly mutations and discovered the twenty-four gene that affects the biorhythm of pomace flies. He analyzed this gene further and found a new function that was different from known biorhythm mechanisms.
This research allowed a better understanding of biological clock of pomace flies and therefore was another step towards better understanding the control mechanism of human biological clock.
2012.01.31 View 9915
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2011 IT Convergence International Workshop
KAIST held the 2011 IT Convergence International Workshop on Future Mobile Service & Service Technology.
The workshop was attended by Kim Byoung Il (Chairman of National Science and Technology Commission), Koichi Asatani (Professor at Kogakuin University), Jay H. Eum (representative of TransLink Capital), among 15 other experts from government, scholar, industry, and IT defense.
The keynote speaker, Chairman Kim Byoung Il, gave a speech on Industry Development Strategy for Software. Professor Koichi Asatani gave a presentation on information communication technology and future trend of future network and service. And Jay H. Eum will be giving a presentation on the technological venture firm strategy that was so successful in Silicon Valley.
There will be presentations and debate on mobile services, IT security and defense, IT convergence technology, software technology and other future IT convergence technologies.
2012.01.31 View 7625
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Professor Lee Jae Kyu : Appointed Fellow at Association of Information Systems
Professor Lee Jae Kyu of the Graduate School of Information Media Management was made Fellow of the Association of Information Systems.
Professor Less was the Chief Editor of Electronic Commerce Research and Applications, Chairman of Asia Pacific Information System Symposium, and Chairman of Korea Academy of Management Information, in addition to Chairman of the Academy of Korea Intelligence Information System.
The ‘Electronic Commerce’ co-written by Professor Lee is being used as primary MBA textbook in many universities around the world.
Homepage : http://www.business.kaist.ac.kr/faculty/jklee/
2012.01.31 View 9390
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Closer to the Dream: Graphene
A technique that allows easy and larger observation area of graphene’s crystal face was developed by Korean Research Team.
The research team, led by Professor Jeong Hui Tae (KAIST), consists of Doctorate candidate Kim Dae Woo, Dr. Kim Yoon Ho (primary author), Doctorate candidate Jeong Hyun Soo. The research is supported by WCU (World Class Research University) Development Plan, Mid-Aged Researcher Support Business and was published in the online edition of Nature Nanotechnology.
(Dissertation: Direct visualization of large0area graphene domains and boundaries by optical birefringency)
Professor Jeong’s team used the optical property of the liquid display used in LCD to visualize the size and shape of the single crystals along a flat surface. The visualization of the single crystal allowed the measurement of a near theoretical value of electrical conductivity of graphene.
Graphene has great electrical conductivity, transparent, mechanically stable, flexible, and is therefore regarded as the next generation electrical material. However the polycrystalinity of graphene meant that the actual electrical, mechanical properties were lower than the theoretical values. The reason was thought to be because of the size of the crystal faces and boundary structures.
Therefore, in order to create graphene that has good properties, observing the domain and boundary of graphene crystal faces is essential.
The new technique developed by the research team is another step towards commercializing transparent electrodes, flexible display, and electric materials like solar cells.
2012.01.31 View 11062
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MOU: KAIST-Korea Internet & Security Agency
KAIST signed a MOU with the Korea Internet & Security Agency for the development of IT and International Security.
As a result of the MOU interaction in ▲Exchange of personnel and materials for cooperative research for information protection ▲Information protection policy and technology ▲Education and training for developing information protection personnel, will be increased.
Director of Cyber Security Research Center Joo Dae Joon commented, “Cyber-attack on national infrastructure like DDOS attacks can threaten the nation’s system” and that “the two institutes will establish a response system against cyber-attacks and train experts in information protection”.
2012.01.31 View 7726
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City of McAllen, Texas Adopts OLEV Technology
KAIST will be exporting the OLEV technology to the United States for the first time since its development.
The city of McAllen of Texas will be stationing 3 OLEV buses in the 10 mile (16km) route from 2013 from OLEV Technology Corporation.
The OLEV Technology Corporation based in Massachusetts and is a venture company that KAIST has 30% share of and has the OLEV technology. The corporation has sole license in commercialization of OLEV in the United States.
The OLEV technology has been commercialized in the city of Seoul since July of 2011. But this is the first instance of foreign implementation of the OLEV technology.
The reason for the city of McAllen adopting the OLEV is because of the support of the Department of Transportation. The Department of Transportation has been supporting Green Energy Research and Future Transportation Technology Development projects since 2009.
A total of 266 research proposals were submitted in 2011 and out of that 46 were selected and given a total of 112 million USD.
Representative of McAllen city commented “the operation of OLEV buses developed by KAIST will result in decrease in energy consumption and emission of greenhouse gases. The OLEV technology can be applied to existing diesel buses and therefore has high cost efficiency”.
2012.01.31 View 7647
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Director of ELK Shin Dong Hyuk Donates 500 million Korean Won over 5 years
KAIST Alumni Director of ELK Shin Dong Hyuk Promised to donate 100million Korean Won annually for 5 years.
Director Shin commented revealed his reason for donating was, “I had received a lot of help from KAIST as a KAIST alumni and was therefore wondering what I could do to help out.” And that “I wish that the donation can help KAIST students who are experiencing financial difficulty”.
He added that, “I wish that the donation becomes the basis on which KAIST students can achieve their dreams and also KAIST students contribute back to KAIST after graduation”.
The ELK ltd. where Alum Shin Dong Hyuk is Director at is located in the DaeDuk Techno Valley and is one of the leading touch screen panel specialization companies. It has world’s best technological asset in smartphone touch screen panel production and is responsible for supplying panels for Motorola and LG Electronics, etc.
2012.01.31 View 7394
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Bio Pharmaceutical Business Center: Now Open
The Signboard Hanging Ceremony for the Bio Pharmaceutical Business Center for the Integrated Research for the field of Bio Pharmaceutics. 150 representatives from various bio pharmaceutics related businesses and institutes were present for this ceremony.
The Ministry of Education, Science and Technology placed the Molecular Process research team, Personalized Drug Delivery Medium research team, and the newly formed Cancer Cell Detection using Blood research team at the Bio Pharmaceutical Business Center at KAIST.
2012.01.31 View 9299