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242009. 08
No. 27 View. 21414
KISTI held the "Science School"
KISTI held the "Science School" for the children whose parents work for KISTI on August 21 at its headoffice in Daejeon. About 30 primary students took park in this program. The Science School aims to provide an opportunity for children to experience their parents'work and explore various scientific facilities and programs. Those students visited Korea Research Institute of Standards and Science(KRISS) and Korea Aerospace Research Institute(KARI), research institutes located in Daeduck Science Zone, had fun with a foreign teacher while at the same time learn of major research activities of KISTI through playing games, and then were able to get hands on experience. KISTI hopes that the children who participated in the program could have a chance to feel more pride and have more respect for their parents through this event. -
192009. 08
No. 26 View. 21350
POSTECH uncovers clue to identifying mechanism of 'peak effect' superconductors
Korean researchers have presented a new approach to the "peak effect (PE)," one of the characteristics of a superconductor, or a material that can reduce energy loss as electric resistance disappears at ultra-low temperatures. A research team including Jang Dong-jin, a doctoral student in the department of physics at Pohang University of Science and Technology, and Prof. Lee Sung-ik at Sogang University, said on August 3 that it had discovered that the isotropic vortex system of superconductors affects the PE. The peak effect refers to a sudden surge in the value of the critical current in certain hard superconductors at high temperatures, or near the end of superconductivity, a range in which the superconducting effect did not occur. By taking advantage of this effect, researchers can create a superconductor that can maintain its status at a relatively high temperature, as opposed to traditional superconductors, which can only maintain their status at ultra-low temperatures. This development is expected to help facilitate the commercialization of such a superconducting material. To conduct the study, the research team used MgCni3 single crystal, a superconducting material that is relatively consistent in layers, and in which one can monitor the PE in a low magnetic flux. The team discovered that an increase in the frequency of the current (driving frequency), which is streamed to monitor the magnetic flux that penetrates in the form of a vortex into the superconductor, was accompanied by the gradual decline and then ultimate disappearance of the PE. The team thus found that the vortex dynamics within the superconductor, which is created due to the magnetic flux, is closely related to the PE, illustrating that research on this phenomenon is essential to identifying the cause of the PE in the future. The study was published in the latest issue of the "Physical Review Letters," a leading journal in the physics field. Jang said, "If we identify the mechanism of the PE through the study, we will be able to use a superconductor at a high temperature, which will allow us to use energy much more efficiently." He added, "Notably, since our team is the only research group in the world that possesses MgCni3, we are relatively better positioned in the study than our rivals." Kim Hee-jinpeace at hellodd.com [August 17, 2009] - - - - - - -Source - HelloDD.com -
242009. 07
No. 25 View. 19965 Dr. NGUYEN TIEN DAT, Director of Vietnamese Academy of Science and Technology(VAST), visited KISTI on July 23, 2009. The object of this visit was to promote mutual cooperation and exchange information between KISTI and VAST. The event began with introduction of KISTI and VAST and was followed by a discussion on cooperation issues between two organizations and a tour of KISTI's facilities. During the visit, Dr. NGUYEN TIEN DAT showed considerable interest in the work of KISTI, and he was hopeful that KISTI and VAST promote mutual cooperation between both parties.
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222009. 07
No. 24 View. 21724
KAIST develops core technology for world's first surface plasmon OLED
Prof. Choi Kyung-chol team's technology to allow for low-cost, normal temperature OLED processing.The Korea Advanced Institute of Technology (President Suh Nam-pyo) said on July 9 that a research team led by Prof. Choi Kyung-chol at the institute's electrical and electronic engineering department had become the first in the world to develop a core technology that significantly enhances the efficiency of OLEDs, an electronic display device. Prof. Choi's team discovered that when a material inducing surface plasmon is combined with light generated from an OLED using nano-size silver (Ag) particles, the speed at which light emission recombines increases, thus significantly enhancing the brightness of the OLED. Additionally, the team increased the efficiency of light emission by up to 75 percent by allowing for low-cost, normal temperature OLED processing using surface plasmons through the application of an evaporation method for the first time in the world. (Photo) A photo of OLED light emission using surface plasmons compared with a photo of that light emission in a conventionally structured OLED. The study is drawing keen attention for inventing a new display device that combines OLED, a next-generation display technology, with surface plasmon technology using low-cost nanoparticles.Prof. Choi said, "The technology that has been developed using surface plasmons is a new technology that can enhance the emission efficiency of OLEDs," adding, "The technology is expected to make important contributions to the acquisition of core technology and to the development of OLED and flexible display technology." The study was published in Applied Physics Letters, a world-renowned journal in the applied physics field, and Optics Express, the most prestigious journal in the optics field. The study was conducted with support from the "Frontier research center program" of the Korea Research Foundation (Chairman Park Chan-mo), and from the "KAIST high risk, high return program" at the Nanopap Center (President Lee Hee-chul).Yoo Sang-young, young at hellodd.com [July 21, 2009] - - - - - - -Source - HelloDD.com -
222009. 07
No. 23 View. 21986
KIMS secures technology for highly porous, sturdier ceramic
Efforts kick off to commercialize core technology for microcellular, porous ceramic? (Photo) Efforts are underway to commercialize a state-of-the-art core technology that allows for the creation of invisible holes in ceramic materials but minimizes the deterioration of the mechanical functions of such materials.A team led by Dr. Song In-hyuk of the engineering ceramics research group at the Korea Institute of Materials Science (Director Cho Kyung-mok) said on July 13 that, working with a research team led by Dr. Kim Young-wook at the University of Seoul, it jointly developed a core technology for microcellular, porous ceramic, a material for which pore control is of utmost importance.Song's team is jointly conducting research with Youngjin Ceramics (CEO Bae Ji-soo) and Namkang Ceramics (CEO Yoon Dal-woong) to commercialize the technology and transfer related technologies. Notably, Youngjin Ceramics successfully produced a setter (a structure that maintains its electrical characteristics when forming ceramic products, including electronic parts and porcelain) comprising diverse formations based on the core technology.Dr. Song said, "By applying microcellular, porous ceramic technology, and thus reducing the weight of ceramics through the presence of numerous pores, we can produce components that can enhance efficiency in heat treatment when forming, and that are consistent in composition thanks to convenient degreasing on the contact surface at the bottom resulting from enhanced porousness."With the adoption of the technology, the porous Zirconia setter is expected to cut materials costs of a product by 40 percent and production costs by 20 percent, allowing producers to rake in 1.5 billion won in annual sales.Dr. Song said, "We have conducted research since 2001, and initially focused on the acquisition of core technology, including the development of new processes," adding, "Through proactive research collaboration with companies, we aim to commercialize in the short-term strategic items, including vacuum chuck materials that can be applied to semiconductor equipment and LCD equipment, which require a high level of porousness, and a light tile material that allows for humidity control as an eco-friendly construction material."Additionally, Dr. Song's team and Youngjin Ceramics are expanding the applicability of the technology by producing porous Zirconia setters and a brush for polishing printed circuit boards. As such, experts predict the technology will highly likely find applications in other fields in the future.Dr. Song said, "The microcellular, porous ceramics technology will emerge as a technology for creating core materials that overcome technological barriers in the areas of the environment, precision machinery, automobiles, construction materials, medical components and fuel cell projects."Amid increasing international concern for environmental matters, porous materials are catching on around the world in the fields of desulphurization, denitrification, and filters aimed at curbing environmental pollution. As such, the utility and value of microcellular ceramics that boast functional superiority over conventional porous materials will likely increase further.The applicability of the technology is also expected to expand to include semiconductors, heat-resistant tiles for space shuttles, high pressure ramps, and artificial bones and joints.Lim Eun-hee,redant645 at hellodd.com[July 21, 2009]- - - - - - -Source - HelloDD.com -
202009. 07
No. 22 View. 21725
1st Joint Workshop for Collaboration between KISTI and IPNS/KEK
KISTI has hosted "1st Joint Workshop for collaboration between KISTI and IPNS/KEK" on July 17 at its head office located in Daejeon. The workshop has been organized in cooperation with KEK, which is a high-energy physics research organization in Tsukuba, Ibaraki Prefecture, Japan. This workshop aimed to lay the foundation for an active information exchanges to promote joint research on electron-positron colliding-beam accelerator. The event began with a talk between Trustee of KEK, Dr. Fumihiko Takasaki, and President of KISTI, Dr. Park Young-seo, and proceded with the participants' presentations and discussions on the current state of each organization and future collaboration such as plans for promoting the exchange of technology between KISTI and KEK. -
082009. 07
No. 21 View. 20796
The First Minister of S and T Visits KISTI
The First Minister of Science and Technology, Kim Ki-hyung, made a visit to Korea Institute of Science and Technology Information(KISTI, President Park Young-seo) on July 7. The event began with a talk between the First Minister Kim and KISTI staffs including President of KISTI, Park Young-seo, and was followed by an introduction to KISTI and a tour of its facilities. During the visit, he showed considerable interest in KISTI's research activities and also encouraged KISTI staffs. -
292009. 06
No. 20 View. 19209
KISTI hosts a conference "The Clouds 2009"
'K-cloud' makes a startConference "The Clouds 2009" on July 8 - Discussion on standardization policy Korea Institute of Science and Technology Information(KISTI, President Park Young-seo) will hold a conference "The Clouds 2009" in cooperation with Korea Cloud Service Association, Korea IT Service Industry Association, Cloud Computing Forum, and The Electronic Times at the COEX Intercontinental Hotel Seoul on July 8. The conference's aim is to gather, analyze and propagate the technological information related with Cloud Computing, research and analyze the latency information of Cloud Computing and support new policy for Government as well. More than 500 attendants include computing analysts and participants interested in cloud service. The sailing ceremony of 'Cloud Computing Forum' will also be held as the first step of K-cloud on the same day. This forum, in which KISTI and Association of Next Generation computing Industry, and others are participated, plans to conduct standardization policy researches on Cloud Computing. Cloud Computing is one of the most promising IT concepts, which is when users run software over the internet and access it via a browser. It is a style of computing in which dynamically scalable and often virtualized resources are provided as a service over the Internet.The term cloud is used as a metaphor for the Internet, based on how the Internet is depicted in computer network diagrams and is an abstraction for the complex infrastructure it conceals. -
262009. 06
No. 19 View. 20263
KAIST develops conducting nanowire
Prof. Park Chan-beum's team uses peptide self-assembly tech, publishes study in international journal. (Photo) Image of vertically well-aligned nanowire and nanotube.A team of Korean researchers has developed conducting polymer nanowire and nanotube material that employ natural peptide self-assembly technology. The Korea Advanced Institute of Science and Technology (President Suh Nam-pyo) said on June 15 that a team led by Prof. Park Chan-beum at KAIST's department of materials science and researcher Ryu Jung-ki had published their study on the development of conducting polymer nanowire and nanotube material in Angewandte Chemie, a world-renowned chemistry journal. Peptides or proteins can create three-dimensional structures through the combination of some 20 amino acids. Such structures have the advantage of outstanding physical characters and diverse functions, which were not available in the original materials. The research team allowed tens of thousands of very simple peptides comprising two amino acids to align on their own to successfully form a long nanowire one one-thousandth the thickness of a single hair. They then coated the structure with polyaniline, a conducting polymer material, to create a Vertically Well-Aligned conducting Nanowire. Unlike common electric wires, the Vertically Well-Aligned nanowire only conducts electricity on its surface. Prof. Park's team then selectively removed the peptide core section of the conducting nanowire to produce a conducting nanotube consisting purely of polyaniline.Creating three-dimensional structures through the self-assembly of chemical substances, a process not unlike building with Lego blocks, not only constitutes a fundamental mechanism within all different biological phenomena, but is also widely sought after as one of the key technologies for producing nanomaterials. Notably, since the peptide the research team used in the study originated from amyloid plaque in a fabric structure, which is closely related with the development of degenerative diseases including Alzheimer's, the study of the self-assembly of peptides is highly important from a medical perspective as well. If conducting polymer is produced into a nano-sized structure, its electric characteristic is significantly enhanced. Hence, the newly developed conducting nanowire and nanotube will likely find applications in the development of various next-generation solar cells, sensors and chips, and are expected to help boost Korea's science and technology competitiveness in the areas of nano-bio fusion in the future.Meanwhile, experts say the newly developed technology has already made important contributions to the development of nanomaterials through the creative fusion of nanotechnology and bioscience.Lim Eun-heeredant645 at Hellodd.com(Photo) From left: Prof. Park Chan-beum and Ph.D. candidate Ryu Jung-ki, researcher[June 26, 2009]- - - - - - -Source - HelloDD.com -
222009. 06
No. 18 View. 20959
KISTI signs MOU with KASI and KAAS
Korea Institute of Science and Technology Information(KISTI, President Park Young-seo) has concluded a memorandum of understanding on science culture cooperation with Korea Astronomy and Space Science Institute(KASI, President Park Seok-jae) and The Korean Armature Astronomical Society(KAAS, President Jang Se-il). The signing ceremony was held at KASI in Daejeon on June 17, 2009. Under the MoU, KISTI, KASI, and KAAS have agreed to cooperate and collaborate for promotion of SETI Korea(Search for Extraterrestrial Intelligence, Korea), a distributed computing(grid computing) project of KISTI using Internet-connected computers.