LED
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Transparent Antenna for Automobile Developed
A research team led by Prof. Jae-Woo Park of the School of Electrical Engineering & Computer Science, KAIST, developed a transparent antenna for the next-generation automobiles, university authorities said on Monday (Aug. 17).
The development was made possible through joint researches with the Hyundai-Kia Automotive Group; Winncom, a car antenna manufacturer; and a group of researchers led by Han-Ki Kim of the Department of Display Materials Engineering at Kyung Hee University in Seoul.
The transparent antennas were developed in two kinds -- one for the HSDPA (High-Speed Downlink Packet Access), a new protocol for mobile telephone data transmission, and the other for transmitting and receiving radio wave for emergency call.
Using the transparent electrically conductive film formation technology, the transparent antennas are to be mounted on the windshield of a vehicle.
"The development of transparent antenna represents a step forward for the advancement of the next-generation automotive electronic technology," said Seong-woo Kim, a senior researcher at the Hyundai-Kia Group.
2009.08.18 View 12333 -
Prof. Choi Unveils Method to Improve Emission Efficiency of OLED
A KAIST research team led by Prof. Kyung-Cheol Choi of the School of Electrical Engineering & Computer Science discovered the surface plasmon-enhanced spontaneous emission based on an organic light-emitting device (OLED), a finding expected to improve OLED"s emission efficiency, KAIST authorities said on Thursday (July 9).
For surface plasmon localization, silver nanoparticles were thermally deposited in a high vacuum on cathode. Since plasmons provide a strong oscillator decay channel, time-resolved photoluninescene (PL) results displayed a 1.75-fold increased emission rate, and continuous wave PL results showed a twofold enhanced intensity.
"The method using surface plasmon represents a new technology to enhance the emission efficiency of OLED. It is expected to greatly contribute to the development of new technologies in OLED and flexible display, as well as securing original technology," Prof. Choi said.
The finding was published in the April issue of Applied Physics Letters and the June 25 issue of Optics Express. It will be also featured as the research highlight of the August issue of Nature Photonics and Virtual Journal of Ultrafast Science.
2009.07.09 View 19090 -
Prof. Sang-Ouk Kim Featured on the Cover of Emerging Investigator Special Issue
KAIST Prof. Sang-Ouk Kim of the Department of Materials Science and Engineering was featured on the cover of the Emerging Investigator Special Issue published by Britain"s Royal Society of Chemistry on June 21, university authorities said on Monday (June 22).
The special issue shed spotlight on 18 up-and-coming scientists who have been selected through the recommendation and rigorous screening process of the editorial and advisory boards of the Royal Society of Chemistry. The 18 scientists consist of six from the American continent, 10 from Europe, one from Japan and one from Korea.
The journal introduced Prof. Kim"s paper, titled "Highly entangled carbon nanotube (CNT) scaffolds by self-organized aqueous droplets." Kim explained in the paper that the cellular CNT demonstrated high electrical conductivity and field-emission properties, which is potentially useful for various applications in electronics and energy storage devices.
2009.06.24 View 11997 -
U.S. and Korean Researchers Unveil Newest Research Team Member: Jaemi the Humanoid
- Project aims to enable humanoids to interact with people and their environment
June 1, 2009-- A Drexel University-led research team late last week unveiled the newest, most central member of its collaboration with a team of Korean researchers: Jaemi, a humanoid (HUBO). Jaemi HUBO embodies efforts to advance humanoid development and enhance the concept of human-robotic interaction. The project"s goal is to enable humanoids to interact with their environment, and enhancement plans include enabling the humanoid to move over rugged terrain, in unstructured environments and to interact socially with humans and handle objects.
The five-year project, funded through the National Science Foundation (NSF) Partnership for International Research and Education (PIRE) program, seeks transformative models to catalyze discovery through international research collaboration and train U.S. students and junior researchers to effectively think and work in global teams.
"The field of robotics is among the top 10 technology areas considered engines for economic growth. Korea understands this and is aggressively pursuing robotics. To stay competitive, the U.S. must do the same," said Mark Suskin, acting deputy director of NSF"s Office of International Science and Engineering. "NSF"s PIRE program and this robotics collaboration in particular, enable the U.S. to capitalize on research in other countries and remain competitive."
The PIRE research team is composed of researchers at The University of Pennsylvania, Colby College, Bryn Mawr College and Virginia Tech in the United States; and Korea Advanced Institute of Science and Technology (KAIST), Korea University and Seoul National University in Korea.
The team obtained a version of KAIST"s HUBO humanoid, which it named Jaemi HUBO and decided to house it at Drexel University. KAIST HUBO lab has become a model of cutting advance humanoid research by relatively small teams working on tight budgets.
KAIST excels in humanoid leg and body design, biped gait (walking, running, kicking), balance (modeling and control system design), and hardware integration. U.S. robotics researchers tend to enjoy an edge in locomotion over rugged, unstructured terrain; manipulation/grasping; cognition, perception and human-robot interaction; and vision (image, understanding, navigation).
This collaboration of American and Korean researchers will seek to draw on the expertise of each researcher and take Jaemi HUBO to the next level of development--that is, to improve Jaemi"s capabilities to navigate and manipulate objects and interact with people in unstructured environments. Such capabilities demand information technologies like cognition, perception and networking areas. Targeted enhancement features include a capability to move over rugged terrain and in unstructured environments and to handle objects and interact socially with humans.
Jaemi HUBO will also educate the American public, particularly young people, about the science of robotics. This education process began at the Please Touch Museum in Philadelphia on May 28, 2009, when Jaemi HUBO was unveiled and introduced to a crowded audience of children and a few adults. Neither male nor female,Jaemi connected with the children, boys and girls alike. Guided by a Drexel University graduate student, Jamei moved, spoke, danced, shook hands and lead the children in a game of Simon Says. Such access to Jaemi HUBO starkly contrasts with that afforded by other high-profile humanoids that are often protected trade secrets, largely inaccessible to the public.
Museum curators are pleased to have had Jaemi visit and entertain kids during the weekend. "At the Please Touch Museum, we promote learning through a variety of senses," said J. Willard Whitson,the museum"s vice president for exhibits and education. "A humanoid not only embodies our goal of building layers of knowledge in young people, but Jaemi helps all of us celebrate the playful side of technology."
Jaemi HUBO is now at its permanent home at Drexel University, from which travel and guest appearances may be arranged by appointment. Journalists interested in meeting and interviewing Jaemi HUBO and other research team members are encouraged to contact Lisa-Joy Zgorski at lisajoy@nsf.gov. (Press Release of U.S. National Science Foundation)
2009.06.19 View 13719 -
Prof. Cho's Team Awarded Best Paper Prize by IEEE
A team led by Prof. Seong-Hwan Cho of the School of Electrical Engineering and Computer Science, KAIST, won the 2009 Guillemin-Cauer Best Paper Award for their paper published in the IEEE Transactions on Circuits and Systems Journal last May, university authorities said on Thursday (June 4).
The team"s paper was entitled "A Time-based Bandpass ADC Using Time-Interleaved Voltage-Controlled Oscillators." The prize is given to a paper regarded as the best among about 350 papers published in the prestigious journal in the circuit theory area. Co-recipients of the award are Young-Gyu Yoon, Jae-Wook Kim and Tae-Kwang Jang. The award was presented at the annual 2009 International Symposium for Circuits and Systems in Taipei, Taiwan, on May 26.
The Institute of Electrical and Electronics Engineers or IEEE is an international non-profit, professional organization for the advancement of technology related to electricity. The New York-based organization has more than 365,000 members in about 150 countries making it the largest technical professional organization in the world.
2009.06.05 View 12745 -
KAIST Wins First Prize at Recon Challenge of Int"l Magnetic Resonance Society
Professor Jong-chul Ye of the Department of Bio and Brain Engineering and Hong Jeong, a doctorate student, won the first prize at the Recon Challenge held as part of a workshop sponsored by the International Society for Magnetic Resonance in Medicine (ISMRM) held in Sedona, the United States.
The workshop took place under the theme of “data sampling and image reconstruction” on Jan. 25-28 in Sedona, Arizona, the United States. The KAIST team beat out major magnetic resonance imaging groups from the U.S. and Europe.
The Recon Challenge is a biennial competition highlighting different reconstruction strategies and metrics to compare them. ISMRM is an international, nonprofit, scientific association which promotes communication, research, development, and applications in the field of magnetic resonance in medicine and biology and other related topics.
At the competition, the KAIST team presented a new dynamic MRI algorithm called k-t FOCUSS that is optimal from a compressed sensing perspective. The main contribution of the method is extension of k-t FOCUSS to a more general framework with prediction and residual encoding. The prediction provides an initial estimate while the residual encoding takes care of the remaining residual signals.
2009.02.06 View 12814 -
KAIST, ICU Agree to Merge
KAIST and the Information and Communications University, a state-run institution, decided to merge as they signed a memorandum of understanding for unification at the Westin Chosun Hotel in Seoul on May 23.
The MOU signing ceremony was attended by representatives of the two universities and related high-ranking government officials from the Ministry of Knowledge Economy and the Ministry of Education, Science and Technology.
Under the agreement, the two universities will form a joint committee to complete the merger process by the end of this year. According to the MOU, ICU will become the "IT Convergence Campus" (ICC) which will include KAIST"s IT related departments and research institutes. The projected ICC will be headed by a KAIST vice president, KAIST authorities said.
With the merger, the number of KAIST students in the IT area will increase to 2,850 from 1,951, while the number of IT-related faculty members will rise to 157 from 99.
ICU was established in 1997 by the Korean Ministry of Information and Communication, the Electronics and Telecommunications Research Institute, and some major Korean IT companies. Located in Daedeok Science Town in Daejeon where KAIST is also situated, ICU started as a graduate school and added the undergraduate course in 2002. It currently has a total enrollment of 1,121 students -- 481undergraduate students, 324 graduate students and 316 doctorate students.
KAIST said that it will treat ICU professors and staff equally after the merger. This year, the two universities will separately conduct freshmen recruitment procedures for 2009, but will then unify recruitment.
The unification of the two institutions is expected to give KAIST the competitive edge through a larger faculty, student body, and expanded facilities.
The agreement put an end to extended negotiations for merger which started in July 2006. The talk of merging the two universities surfaced when the Board of Audit and Inspection concluded that the government"s direct financial support for ICU was unlawful as ICU was established as a private school. When ICU was established in 1997, the Ministry of Information and Communication provided 200 billion won as the basic endowment and has continually provided 10 billion won in operating funds each year.
2008.05.22 View 13377 -
KAIST, Hynix Agree to Cooperate in Fostering Skilled Manpower
KAIST and Hynix Semiconductor, the world’s second largest producer of dynamic random access memory (DRAM) chips, have agreed to promote bilateral cooperation in fostering highly skilled manpower for the semiconductor industry. A signing ceremony was held on Jan. 21 in Seoul.
The agreement marked an expansion of the scope of cooperation between the two organizations into the system IC industry. Since 1995, KAIST and Hynix have cooperated in fostering human resource specialized in the memory semiconductor area, bringing up a total of 250 highly skilled personnel in the area so far. Under the new agreement, Hynix will provide financial support, including scholarships, to KAIST for the next five years. The number of students subject to the Hynix-financed program will be increased to 20 a year from the current 10. New material engineering and physics will be added to the areas covered by the cooperation program.
2008.01.29 View 10789
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Youngseok Son and Yongjoon Chun won a prize of Commerce, Industry and Energy Minister
Youngseok Son and Yongjoon Chun won a prize of Commerce, Industry and Energy Minister
Youngseok Son and Yongjoon Chun, doctorate students at circuit design and system application lab of Electrical Engineering Division, won a prize of Commerce, Industry and Energy Minister (Silver prize) at the 7th Semiconductor Design Contest hosted by the Korean Intellectual Property Office.
Their work exhibited at the contest is ‘a driving circuit for the improvement of image quality of AMOLED display’.
AMOLED display is gaining attention as a next-generation display for its numberless advantages compared to AMLCD and PDP, however, problems over the image quality and lifespan of the display have disturbed the substantial development. Their work verified its electrical features by proposing and designing the driving method and circuit for the improvement of the image quality and lifespan of AMOLED display. The announced driving method was named ‘Transient Cancellation Feedback (FCF)’ and its concept was published in SID 2006. Their work was evaluated to overcome the limitation of the existing driving methods by providing an intrinsic Active Matrix structure, different from the existing driving methods.
It is also evaluated to strikingly enhance the speed and accuracy of data current driving through TCF driving. It is expected to significantly enhance the image quality and lifespan of AMOLED displays by applying TCF driving.
2006.11.27 View 15000