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KAIST paves the way to commercialize flexible display screens
Source: IDTechEX, Feb. 28, 2011
KAIST paves the way to commercialize flexible display screens
28 Feb 2011
Transparent plastic and glass cloths, which have a limited thermal expansion needed for the production of flexible display screens and solar power cells, were developed by researchers at KAIST (Korea Advance Institute of Science & Technology).
The research, led by KAIST"s Professor Byoung-Soo Bae, was funded by the Engineering Research Center under the initiative of the Ministry of Education, Science and Technology and the National Research Foundation. The research result was printed as the cover paper of "Advanced Materials".
Professor Bae"s team developed a hybrid material with the same properties as fiber glass. With the material, they created a transparent, plastic film sheet resistant to heat. Transparent plastic film sheets were used by researchers all over the world to develop devices such as flexible displays or solar power cells that can be fit into various living spaces. However, plastic films are heat sensitive and tend to expand as temperature increases, thereby making it difficult to produce displays or solar power cells.
The new transparent, plastic film screen shows that heat expansion index (13ppm/oC) similar to that of glass fiber (9ppm/oC) due to the presence of glass fibers; its heat resistance allows to be used for displays and solar power cells over 250oC.
Professor Bae"s team succeeded in producing a flexible thin plastic film available for use in LCD or AMOLED screens and thin solar power cells.
Professor Bae commented, "Not only the newly developed plastic film has superior qualities, compared to the old models, but also it is cheap to produce, potentially bringing forward the day when flexible displays and solar panels become commonplace. With the cooperation of various industries, research institutes and universities, we will strive to improve the existing design and develop it further."
http://www.printedelectronicsworld.com/articles/kaist_paves_the_way_to_commercialize_flexible_display_screens_00003144.asp?sessionid=1
2011.03.01 View 12420 -
Professor Min Beom Ki develops metamaterial with high index of refraction
Korean research team was able to theoretically prove that a metamaterial with high index of refraction does exist and produced it experimentally.
Professor Min Beom Ki, Dr. Choi Moo Han, and Doctorate candidate Lee Seung Hoon was joined by Dr. Kang Kwang Yong’s team from ETRI, KAIST’s Professor Less Yong Hee’s team, and Seoul National University’s Professor Park Nam Kyu’s team. The research was funded by the Basic Research Support Program initiated by the Ministry of Education, Science, and Technology and Korea Research Federation.
The result of the research was published in ‘Nature’ magazine and is one of the few researches carried out by teams composed entirely of Koreans.
Metamaterials are materials that have physical properties beyond those materials’ properties that are found in nature. It is formed not with atoms, but with synthetic atoms which have smaller structures than wavelengths.
The optical and electromagnetic waves’ properties of metamaterials can be altered significantly which has caught the attention of scientists worldwide.
Professor Min Beom Ki’s team independently designed and created a dielectric metamaterial with high polarization and low diamagnetism with an index of refraction of 38.6, highest synthesized index value.
It is expected that the result of the experiment will help develop high resolution imaging system and ultra small, hyper sensitive optical devices.
2011.02.23 View 15536
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New Bio-Clock gene and its function found
The Ministry of Education, Science and Technology announced that a Korean research team has found a new gene responsible for maintaining the bio-clock (twenty-four) and its mechanism.
Twnety-four was led by Professor Choi Joon Ho and Dr. Lee Jong Bin of KAIST (department of Biology) and was a joint operation with Professor Ravi Allada and Dr.Lim Jeong Hoon of Northwestern University (department of neurobiology) and the result was published in ‘Nature’ magazine.
The research team experimented with transformed small fruit flies for 4 years and found that there was an undiscovered gene that deals with the bio rhythm in the brain which they named ‘twenty-four’.
The understanding with genes prior to twenty-four was that these genes regulate biorhythm in the transcription phase (DNA to mRNA). Twenty-four operates in the step after transcription when the ribosome creates proteins. Especially twenty-four has a great effect on the ‘period protein’ which acts as a sub-atomic clock that regulates the rhythm and life of each cell.
The experiment was innovational in that it was able to scientifically prove the function of the protein produced by the gene.
The result is expected to help solve the problems associated with sleep disorders, jetlags, eating rhythms, bio rhythms, etc.
The name twenty-four was the fact that a day, a cycle, is 24 hours long and the gene’s serial numbers CG4857 adds up to twenty four.
2011.02.23 View 10952
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College of Cultural Science selects 'Best English Paper' Recipients
KAIST’s College of Cultural Science (Dean Kim Dong Won) announced the winners of ‘2010 Fall Semester Best English Paper Award’: Excellence Award went to Kwak Ah Young (department of Biology), Seong Du Hyun (undeclared major), Ahn Da In (Biological Chemical Engineering), and nine other students received the Participation Award.
Ahn Da In discussed ‘Joyce and Chopin on use of epiphany’, Seong Du Hyun discussed ‘On Kant’s Groundwork for the metaphysics of Morals, its Achievements, and Implications’, and Kwak Ah Young discussed ‘Fact Pattern of Environmental Law’.
The ‘Best English Paper’ Award has been awarded to undergraduates since 2009 Fall semester in the Humanities and Social Science Department’s efforts to increase creativity and English writing skills of students attending KAIST.
For the 2010 fall semester, each professor in charge went through 1 to 2 papers (among 610 papers admitted across human science subjects) and recommended 29 papers to be discussed with great scrutiny. The evaluation took place throughout January and the 3 papers discussing English Literature, Scientific Philosophy, and Environmental Law were awarded the Excellence Award, and 9 other papers were awarded the Participation Award.
Dean of Cultural Science College Kim Dong Won commented, ‘I am very encouraged by the level of papers and is becoming a very large art of the College of Cultural Science’.
The chairman of the screening committee, Professor Kim Eun Kyung also commented, ‘the best paper award is helping students better their English levels’ and that ‘in order to form and encourage a sound and structured English paper writing environment, a anti-plagiarism program will be implemented amongst implementing other judging standards’.
2011.02.21 View 10294
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Graduation of class of 2011 held
The graduation ceremony for the class of 2011 was held in the Ryu Keun Chul Sports Complex on the 11th of February with the Vice minister of the Ministry of Education, Science and Technology Kim Chang Kyung, Oh Myoung Chairman of the board, graduates, and 2,500 parents of the graduates.
5 honorary doctors, 507 doctors, 1,111 masters’ graduates, 771 undergraduates (2,389 in total) received their degrees. KAIST has produced since being established in 1971, 8,578 doctors, 22,796 masters’ graduates, 11,341 undergraduates; a total of 42,715 highly skilled science and technology experts.
During the ceremony Ms. Oh Lee Won, who helped establish the Professor Lee Won Jo Program, Chairman Cho Cheon Shik, who helped establish the graduate school of Green Traffic technology, Chairman Jang Young Shin, President Kim Young Gil of HanDong University, and Shirley Ann Jackson, President of Rensselaer Polytechnic Institute, received honorary doctorate degrees.
The valedictorian of the undergraduates was Ryu Jae Yoon (22 years old, department of Chemistry), and received the ‘Minister of the Ministry of Education, Science and Technology Award’ and gave a speech on behalf of the graduating undergraduates.
Mr. Ryu commented “I am very happy and honored to be graduating as a valedictorian” and that “I had attended the 2010 Nobel Prize Award Ceremony as representative of the Korea Engineering Undergraduates and I hope to become a Nobel Prize recipient myself one day and will do my utmost to become one”. Mr. Ryu will progress onto the graduate school of Chemistry and will be studying catalytic reactions in organometallic compounds.
In addition the Chairman of the Board Award went to Kang Jong Ho (department of Mathematics), President Award went to Cho Hyun Jae (department of Electric and Electronic Engineering), Chairman of Alumni Award went to Lee Joo Young (department of Aerospace Engineering), School Support Award went to Kim Dong Han (department of Mechanical Engineering).
Also, the Graduate college of Cultural Technology produced, for the first time ever since being established in September of 2005, 3 doctors.
A Mongolian government official known as ‘Tumur’ (Tumurpureve Dulambazar) received a doctorate’s degree and his son Jagdori is currently enrolled in KAIST and will be receiving a masters’ degree this coming fall graduation.
Christopher Emmerich received a double degree from KAIST and Germany’s Karlsruche Institute of Technology.
The vice president of the Ministry of Education, Science and Technology said in his commemoratory speech, “Make sure to sacrifice and work hard for advancement of country and society with pride and belief that you are experts in your respective fields.” And that, “we expect you to compete with world’s leading experts in your respective fields thereby helping improve Korea’s status in the world”.
President Seo commented, “Graduates of KAIST are ready to make great contributions to not only Korea but the human race in general. Hopefully the education the graduates received at KAIST will be used to help society and the human race.”
2011.02.21 View 10501
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The 40th Anniversary of the Establishment of KAIST Commemoration Held
KAIST, aspiring to become the best Science and Technology University, has turned 40.
KAIST held the commemoration ceremony for the 40th Anniversary of the Establishment of KAIST in the auditorium.
Five awards (Scholar, Creative Lecture, Excellence in Lecture, International Cooperation, Experiment) were given to Professors Kim Eun Jun and Walton Jones (department of Biology), Professor Abigail Shin (department of Humanities and Social Sciences), Professor Shin Seong Chul (department of Physics), and Professor Lee Sang Yeop (department of Biological Chemical Engineering). Each recipient received a prize of five million won.
Professor Song Joon Hwa (department of Computer Sciences) received the ‘New Knowledge Award’ in recognition of his development of the Orchestrator Mobile platform. The new platform is different from Android or the IOS platform in that it allows a fluid relationship to be formed between the smartphone and the user.
KAIST also showed off its new emblem.
The emblem consists of a star which represents the KAIST’s goals of becoming the world leader, of training leaders, the center point, and hope. The main keywords are: ‘Leadership’, ‘Premium’, ‘Scientific’, and ‘Humanity’.
KAIST plans on having various events from May 9th when there will be the Vision Declaration.
2011.02.21 View 12921
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Soyeon's Odyssey by Space Travel, Feb. 1, 2011
Soyeon Yi, an alumna of KAIST who joined the Soyuz TMA-12 mission to the International Space Station in 2008 and successfully returned to the Earth after completion of her mission. She is often cited as the first Korean astronaut who had spaceflight. She recently had an interview with an Australian based online newspaper that publishes space related news stories. For the interview, please go to the link.
http://www.space-travel.com/reports/Soyeon_Odyssey_999.html
2011.02.02 View 8929
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Success in differentiating Functional Vascular Progenitor Cells (VPC)
KAIST’s Professor Han Yong Man successfully differentiated vascular progenitor cells from human embryonic stem cells and reversed differentiated stem cells.
The research went beyond the current method of synthesis of embryonic body or mice cell ball culture and used the careful alteration of signal transmission system of the human embryonic stem cells to differentiate the formation of vascular progenitor cells.
The team controlled the MEK/ERK and BMP signal transmission system that serves an important role in the self replication of human embryonic stem cells and successfully differentiated 20% of the cells experimented on to vascular progenitor cells.
The vascular progenitor cells produced with such a method successfully differentiated into cells forming the endodermis of the blood vessel, vascular smooth muscle cells and hematopoietic cells in an environment outside of the human body and also successfully differentiated into blood vessels in nude mice.
In addition, the vascular progenitor cell derived from human embryonic cells successfully formed blood vessels or secreted vascular growth factors and increased the blood flow and the necrosis of blood vessels when injected into an animal with limb ischemic illness.
The research was funded by the Ministry of Education, Science and Technology, 21st Century Frontier Research and Development Institution’s Cell Application Research Department and Professor Ko Kyu Young (KAIST), Professor Choi Chul Hee (KAIST), Professor Jeong Hyung Min (Cha Medical School) and Doctor Jo Lee Sook (Researcher in Korea Bio Engineering Institute) participated in it.
The results of the research was published as the cover paper of the September edition of “Blood (IF:10.55)”, the American Blood Journal and has been patented domestically and has finished registration of foreign PCT.
The results of the experiment opened the possibility of providing a patient specific cure using stem cells in the field of blood vessel illness.
2011.01.18 View 12437 -
Professor Kang Suk Joong receives 'Korea Engineering Award.'
KAIST”s Professor Kang Suk Joong of the Department of Material Science and Engineering received ‘Korea Engineering Award’ from the Ministry of Education, Science and Technology and Korea Research Foundation. The award is given to those professors who have accomplished world class research and results.
Professor Kang has potentially redirected the direction of research in the field of the microstructure of materials by explaining the fundamental principle behind how the microstructure of a material that affects the physical properties of the polycrystalline structure and changes through processing. Professor Kang applied the results of his findings in the manufacture of new materials and made significant contributions to Korean Material Engineering Industry and was consequently awarded the award.
The ‘Korea Engineering Award’ was thought of in 1994 and a total of 24 recipients were recognized through the award in various fields like electronics, mechanics, chemistry, construction, etc. The recipient is awarded in addition the President’s award and 50million won as prize money.
The ceremony for ‘Korea Engineering Award’ and the ‘Young Scientist Award’ was held in Seoul Press Center Press Club on the 22nd of December at 3pm. The Minister of Education, Science and Technology (Lee Joo Ho), member of Board of Directors of the Korea Research Foundation (Kim Byoung Gook), Director of Korea Science and Technology Archive (Jeong Gil Seng), along with the recipients attended the ceremony.
In addition, Professor Kang was appointed as Distinguished Professor in March 2010 in recognition of his research accomplishments.
2011.01.18 View 10590 -
Explanation for the polymerized nucleic acid enzyme's abnormal activation found
KAIST’s Professor Park Hyun Kyu of the Department of Bio Chemical Engineering revealed on the 23rd of December 2010 that his team had successfully developed the technology that uses the metal ions to control the abnormal activation of nucleic acids’ enzymes and using this, created a logic gate, which is a core technology in the field of future bio electrons.
The polymerized nucleic acid enzyme works to increase the synthesis of DNA and kicks into action only when the target DNA and primers form complimentary pairs (A and T, C and G).
Professor Park broke the common conception and found that it is possible for none complimentary pairs like T-T and C-C to initiate the activation of the enzyme and thus increase the nucleic acid production, given that there are certain metal ions present.
What Professor Park realized is that the enzymes mistake the uncomplimentary T-T and C-C pairs (with stabilized structures due to the bonding with mercury and silver ions) as being complimentary base pairs. Professor Park described this phenomenon as the “illusionary polymerase activity.”
The research team developed a logic gate based on the “illusionary polymerase activity’ phenomenon.” The logic gate paves the way to the development of future bio electron needed for bio computers and high performance memories.
Professor Park commented, “The research is an advancement of the previous research carried on about metal ions and nucleic acid synthesis. Our research is the first attempt at merging the concepts of the two previously separately carried out researches and can be adapted for testing presence of metal ions and development of a new single nucleotide polymorphic gene analysis technology.”
Professor Park added that, “Our research is a great stride in the field of nano scale electron element research as the results made possible the formation of accurate logic gates through relatively cost efficient and simple system designs.”
On a side note, the research was funded by Korea Research Foundation (Chairman: Park Chan Mo) and was selected as the cover paper for the December issue of ‘Angewandte Chemie International Edition’.
2011.01.18 View 10013 -
Professor Young-Ho Cho elected as head of international academic conference
KAIST’s Professor Young-Ho Cho of the Department of Bio and Brain Engineering was appointed as the head of the PowerMems (Power Micro Electro Mechanical Systems) symposium to be held at Se-Jong Hotel in Seoul from November 15-18, 2011.
Professor Jo is America’s first engineering doctor in the field of MEMS and is the founding member of the BSAC (Berkeley Sensor and Actuator Center), the start of the MEMS technology.
PowerMEMS is the core of green growth and next generation energy production. It focuses on harvesting energy from minute vibrations or renewable energy sources such as sunlight or plants to harvest and store energy via micro or even nano size systems.
The symposium was first held in 2000, and it is where leading experts in the field share papers on the production and harvesting energy in the micro scale.
2011.01.14 View 10402 -
KAIST developed a plastic film board less sensitive to heat.
The research result was made the cover of magazine, Advanced Materials and is accredited to paving the way to commercialize flexible display screens and solar power cells.
Transparent plastic and glass cloths, which have a limited thermal expansion needed for the production of flexible display screens and solar power cells, were developed by Korean researchers.
The research, led by KAIST’s Professor Byoung-Soo Bae, was funded by the Engineering Research Center under the initiative of the Ministry of Education, Science and Technology and the National Research Foundation. The research result was printed as the cover paper of ‘Advanced Materials’ which is the leading magazine in the field of materials science.
Professor Bae’s team developed a hybrid material with the same properties as fiber glass. With the material, they created a transparent, plastic film sheet resistant to heat. Transparent plastic film sheets were used by researchers all over the world to develop devices such as flexible displays or solar power cells that can be fit into various living spaces. However, plastic films are heat sensitive and tend to expand as temperature increases, thereby making it difficult to produce displays or solar power cells.
The new transparent, plastic film screen shows that heat expansion index (13ppm/oC) similar to that of glass fiber (9ppm/oC) due to the presence of glass fibers; its heat resistance allows to be used for displays and solar power cells over 250oC.
Professor Bae’s team succeeded in producing a flexible thin plastic film available for use in LCD or AMOLED screens and thin solar power cells.
Professor Bae commented, “Not only the newly developed plastic film has superior qualities, compared to the old models, but also it is cheap to produce, potentially bringing forward the day when flexible displays and solar panels become commonplace. With the cooperation of various industries, research institutes and universities, we will strive to improve the existing design and develop it further.”
2011.01.05 View 12981