Delete Article!-
252009. 09
No. 34 View. 6792
POSTECH scientists develop eco-friendly, terabyte-class data storage technology
POSTECH scientists develop eco-friendly, terabyte-class data storage technology Study published September 14 in online issue of Nature Nanotechnology. (Photo) Prof. Kim Jin-kon, and Jo A-ra, a doctoral program student at POSTECH. Korean scientists have developed a new technology that is capable of storing 1.03 terabyte, a volume equivalent to 1,250 movie titles, per 2.54 square centimeters, roughly the size of a fingernail. A research team led by Professor Kim Jin-kon at Pohang University of Science and Technology (POSTECH) said on September 14 that it developed a technology that allows for the production of a nanopattern that can store ultrahigh density data at terabyte levels on a polystyrene-block-poly (n-pentyl methacrylate), or a copolymer film, based on pressure at room temperature, by using a technology that stores data by a process in which the Atomic Force Microscope probe tip is made to come into mechanical contact with a copolymer surface. Unlike conventional technology that requires the heating of the probe to up to the 350 degree Celsius-level to produce such storage, the new technology allows for the generation of a pattern at room temperature, which drastically reduces energy consumption due to high temperature formation, and thus constitutes an eco-friendly technology, an advantage that is drawing keen attention. U.S. technology giant IBM, which is striving to develop next-generation terabyte-class information storage media, adopts research technology using a device that heats up the ATM tip to up to 350 degrees Celsius to induce plasticity in copolymer film during the string of procedures for data storage. However, IBM's method renders it difficult to produce a tip that can be used at high temperatures, and exhibits heat conductivity of only 0.3% or less through the copolymer film. As a result, this method is low in efficiency and consumes a large volume of energy, which is required for controlling temperatures. In order to overcome such shortfalls, Kim's team developed a polystyrene-block-poly on its own. The material will ultimately allow for the development of ultrahigh-density data storage media at room temperature using its pressure plasticity. Kim said, "We have developed a technology that allows us to easily produce nanopatterns by using a copolymer block that can generate a nano structure at room temperature merely with pressure." adding, "The study has laid the groundwork for the development of technology for ultrahigh-density data storage media, which global enterprises are scrambling to develop." Meanwhile, the study, which was conducted by Prof. Kim and doctoral student Jo A-ra jointly with LG Electronics, was published on September 14 in the online edition of Nature Nanotechnology, a world renowned scientific journal in the nanotechnology field. (Photo) Artist rendition and Atomic Force Microscope image of the production process of the ultrahigh density nanopattern. Artist renditions (a-d) and Atomic Force Microscope image (3-h) of production process of ultrahigh density nanopattern for application as data storage media. Process of writing (b), reading (c), and erasing (d) patterns using the AFM probe tip at room temperature after creating polystyrene-block-poly (n-pentyl methacrylate), or PS-b-PnPMA, on Silicon wafer. ? Lim Eun-heeredant645 at hellodd.com[September 25, 2009]- - - - - - -Source - HelloDD.com -
212009. 09
No. 33 View. 6488
Exchange Program between KISTI and ISTIC
Dr. Zhao Xiaoyuan, a staff from Institute of Scientific and Technical Information China(ISTIC, China), visited KISTI for exchange program from September 7 to 11. During her 5-day visit to KISTI, she had opportunities for understanding the work of Information Center and Information Analysis Center of KISTI. She visited major research divisions of KISTI, had a chance to discuss S&T information related activities with specialists of KISTI and also built her human network with KISTI's staffs. This exchange program is a part of MoU that KISTI and ISTIC concluded in 2005 to promote understanding of major research activities of both organizations and to develop collaborative R&D projects. -
162009. 09
No. 32 View. 6019
Dr. Kwon, Cho to be listed on Marquis Who's Who
Semior researcher??????? ResearcherDr. Kwon, Oh-Jin????????? Dr. Cho, Kwang-Jong Two KISTI researchers, Dr. Kwon, Oh-Jin, senior researcher with Information Analysis Department and Dr. Cho, Kwang-Jong, researcher with Supercomputing Center, have been listed in the 2010 edition of Marquis Who's Who, a U.S.-based publisher of biographical information. Marquis Who's Who is one of the top-three biographical publishers in the world, along with American Biographical Institute and the international Biographical Centre of Cambridge, England. -
142009. 09
No. 31 View. 6053 KISTI and Samsung Electronics Co. signed a memorandum of understanding to increase cooperation on September 10. According to the agreement, the two organizations will collaborate in research activities concerning establishment of sensing infrastructure for new technology. KISTI will provide the information of National Digital science Links(NDSL), which provides one click service on up-to-dated science and technology information.
-
042009. 09
No. 30 View. 6168
KISTI Holds Seminar on Information Dissemination and Technology Transfer
KISTI held the Seminar on Information Dissemination and Technology Transfer and experts from JST Japan(Japan Science and Technology Agency) were invited to talk at the seminar, which was held in association with KISTI's benchmarking on advanced institutes, between August 31 and September 1 at its head office in Daejeon. The seminar sought to promote executive understanding of each other, as well as benchmark advanced other institutes effectively. And the topics discussed during the seminar were as follows; △A-STEP △J-STAGE △Journal at rchive △Metadata Exchange △J-Global. This seminar was attended by a number of KISTI researchers who were interested in the subject. -
252009. 08
No. 29 View. 6690
KISTI takes part in Science Festival between Aug. 4 and9
Korea Science Festival 2009, one of the Korean largest science festivals, kicked off its six-day run on August 4 at the Korea International Exhibition Center in Ilsan, Gyeonggi Province. Hosted by the Ministry of Education, Science and Technology, this festival will run until August 9, Sunday from 10 a.m. to 5 p.m. without admission fee. The opening ceremony began 11 a.m. and attendants include Science Minister Ahn Byong-man, Defense Minister Lee Sang-hee, former science ministers, lawmakers and Korean scientists. At this festival, with the slogan "Green World to Be Drawn with Science," KISTI displays its research achievements, provides various science experience programs and also tries to promote membership of KISTI Junior, the KISTI's website for children and students with the aim of popularization of science. The festival has been held for the 13th time, which first began in 1997. ? -
252009. 08
No. 28 View. 9416
Transparent antenna' buried between auto glass developed as '3rd Generation Tech...
KAIST, Hyundai-Kia Automotive Group, Winnercom, Kyung Hee University jointly develop new antenna technology. (Photo) Korean researchers have developed a third-generation antenna technology, which features an antenna buried between auto glass and allows for data communication, including with the Internet. The Korea Advanced Institute of Science and Technology (KAIST, President Suh Nam-pyo) said on August 17 that a research team led by visiting Professor Park Jae-woo from its electrical engineering department successfully developed a next-generation antenna for vehicles through a joint study. The team conducted the study jointly with Hyundai-Kia Automotive Group, Winnercom, and Prof. Kim Han-ki of the display materials engineering department at Kyung Hee University. The transparent antenna development project is considered a success story of industry-academia cooperation, and the result of a harmonious combination of future-oriented roadmaps for technology development of the academia and industrial companies, which are scrambling to secure patents for diverse technologies for the application of transparent materials in preparation for an era of transparent electronics. The new transparent antenna, which was developed with support from Hyundai-Kia, can be used for antennas for high-speed downlink packet access (HSDPA) such as the Internet inside vehicles, and antennas for frequencies for emergency calls, which automatically relay the location of a vehicle in case of emergency. Those transparent antennas can be installed between automobile glass. The materials used in transparent antennas are basically a metal oxide film, which presents both transparency and conductibility, and others that tap transparent conductive film technology. The antennas have been developed in a way that maintains transparency through design for optimizing antenna functions, but meets the performance requirements for vehicular antennas. Dr. Kim Sung-woo, a senior researcher at Hyundai-Kia, said, "The development of the transparent antenna for vehicles constitutes the discovery of a new technology that can spearhead global automobile technology through the advancement of cutting-edge electronic tech for next-generation automobiles." In 2008, Prof. Park Jae-woo, who heads the antenna development project, became the first in the world to develop core technology for operation of transparent, thin film transistors, and transparent memory technology for variable electrical resistances. Meanwhile, automobile antennas have evolved from the first generation of pole-type, exterior antennas, to the second generation of interior glass antenna that doubles as the rear window defrosting heat wire or a shark's pin-type antenna. In the wake of the development of a transparent, next-generation antenna, automobile antennas are now expected to embrace a third generation of antennas that are buried between auto glass. (Photo) Transparent antenna developed jointly by KAIST, Hyundai-Kia Automotive Group, Winnercom, and Kyung Hee University. ? (Photo) Location for installation of transparent antenna. ? (Photo) View of transparent antenna actually installed in a vehicle. ? Kim Jo-sephjoesmy at hellodd.com [August 25, 2009] - - - - - - -Source - HelloDD.com -
242009. 08
No. 27 View. 6555
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. 6049
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. 5483 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.
