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World Renowned Wireless Technology Experts Gathered in KAIST
KAIST hosted the 2015 IEEE WoW from June 5 to 6, 2015
Wireless power transfer technologies, such as wireless electric vehicles, trains and batteries, are increasingly in use. A conference, The 2015 IEEE WoW (Workshop on Wireless Power), was held in KI Building for two days starting June 5, 2015 to exchange ideas on the new trends and issues of the world wireless power technology.
The wireless power conference hosted by Institute of Electrical and Electronics Engineers (IEEE), IEEE WoW, was sponsored by its societies, PELS, IAS, IES, VTS, MAG, and PES.
This year’s conference took place in Korea for the first time and was titled “IEEE PELS Workshop on Emerging Technologies: Wireless Power.” The event was attended by around 200 experts in wireless power from 15 countries to discuss the international standards and current trends.
Keynote speakers were President Don Tan of IEEE; Professor Grant Covic of the University of Auckland; Andrew Daga, the CEO at Momentum Dynamics Corporation; Professor Ron Hui of the City University of Hong Kong; and Jung Goo Cho, the CEO of Green Power Technologies.
The forum included plenary speaking sessions on “The Futures of EV and Power Electronics,” “Development of IPT at the University of Auckland,” “Interoperable Solution for Wireless EV Charging,” “Development of IPT for Factory Automation,” “Commercialization of High Power WPT,” and “WPT: From Directional Power to Omni-directional Power.”
Notably, KAIST Professor Dong-Ho Cho, responsible for KAIST’s On-Line Electric Vehicle (OLEV) development, spoke on “The Development of Shaped Magnetic Field Systems for EVs and Trains” to introduce the KAIST OLEV bus and OLEV trains developed in cooperation with Korea Railroad Research Institute.
The Dialog Sessions on “The Futures of Wireless Electric Vehicles” were led by John M. Miller of JNJ Miller and “Road Charged EV and WPT Regulation and Standard for EV in Japan” by Yoichi Hori of University of Tokyo.
The General Chair of this year’s IEEE WoW, KAIST Professor Chun T. Rim said, “This forum serves a great assistance to the industry using wireless power technology in areas such as smartphones, home appliances, Internet of Things, and wearable devices.”
2015.05.29 View 8382 -
KAIST International Food Festival
The KAIST International Students Association (KISA) hosted the 2015 International Food Festival in front of Creative Learning Building, KAIST, on May 22, 2015.
This was the 11th International Food Festival for KAIST where international students introduced food from their home countries to strengthen cultural exchanges with Korean students. This year’s festival was the biggest international festival in Daejeon in which around 500 students and staff from KAIST, Chungnam National University (CNU), the University of Science & Technology (UST), and the public participated.
KAIST’s President Steve Kang opened the festival with a welcoming speech, followed by congratulatory speeches by CNU President Sang-Chul Jung and UST President Un-Woo Lee.
The first section of the event was the food festival where around 40 kinds of food from ten countries including Kenya, Kazakhstan, India, and Turkey were presented. Students from each country offered cooking demonstrations in booths, and participants purchased the food.
Cheryl Wanderi, a Kenyan student who recently received a Master’s degree from KAIST’s Department of Bio and Brain Engineering last February said, “I am delighted to introduce Mandazi, a Kenyan donut, to not only Korean students but also other international students.”
The second half of the event consisted of cultural performances from different countries. There were eight teams performing including an Indonesian traditional Saman dance team, a Kazakh group that performed on traditional instruments, and an Azerbaijani K-POP dance team.
Sung-Hyon Myaeng, the Associate Vice President of KAIST’s International Office, said, “Despite their busy lives, students from three different universities planned this event to get to know each other. I hope international students and Korean students can come together and enjoy the festival.”
Edrick Kwek, the President of KISA, said, “This food festival is an event showing the cultural diversity of KAIST in the most splendid way.”
2015.05.27 View 8999 -
KAIST to Host Conference on the Financial Technology Industry
To take place in the Korea Federation of Banks building on May 21, 2015, Seoul
Around 200 individuals to be present including Oh-Kyu Kwon, the former Minister of Finance and Economy and Chang-Hyun Yun, the former president of Korea Institute of Finance
KAIST will hold a conference to discuss prospects for Korea’s financial technology industry (FinTech) and to address the rapid changes taking place in both national and global finance markets.
The conference will be held in the Convention Hall of the Korea Federation of Banks building in Myeongdong, Seoul on May 21, 2015 with a theme entitled “The Challenge and the Task of Korean FinTech Industry in the Global Finance Market.”
Around 200 individuals including Oh-Kyu Kwon, the former Minister of Finance and Economy, Jiwon Jung, a member of a standing committee of Financial Services Commission, and Steve Kang, the President of KAIST will attend the meeting.
The term “FinTech” originates from the combination of two words, finance and technology, to describe a new form of financial system based on Information Technology (IT). The precise definition and boundary of FinTech is not fully established yet, but this will provide Korea with an opportunity to take the lead in the finance industry with its cutting-edge IT.
The conference will focus on the methods by which Korean FinTech companies can acquire a competitive edge in the global finance market. The keynote speaker, Tong-Suk Kim, the Dean of College of Business, KAIST, will speak about “The Challenge and the Task of Korean FinTech.” The talk will emphasize how the FinTech industry can create an innovative industry, destroying the existing paradigm of payment system and Internet-only banks.
The keynote speech will be followed by a talk on “The Requirements for Establishing Korean FinTech Ecosystem” by Jong-Hyun Kim, a researcher at Woori Finance Research Institute, Korea.
Additional talks, which will be given by KAIST professors, are:
“Korean Economy and the Role of FinTech” by Professor Young-Sun Kwon of the Department Business and Technology Management;
“Korean FinTech in ICT Perspective” by Professor Yoon-Joon Lee of the Department of Computer Science;
“The Current State and Possibilities of Korean FinTech” by Professor Byung-Tae Lee of the School of Management Engineering; and
“The Task and Challenge of Promoting FinTech Industry” by Professor Byung-Chun Kim of the School of Management Engineering.
Also, Professor Chang-Hyun Yoon of the School of Business Administration, University of Seoul, will give a talk on “The Crisis in Korean Finance Industry and the Role of FinTech.”
The conference will also hold a discussion session on “The Promotion Methods for Korean FinTech Industry.” Participants for the discussion will include Jae-Sung Song from the Ministry of Science, ICT and Future Planning, Dong-Hwan Kim from the Financial Services Commission, Jeon Jin from Samsung Economic Research Institute (SERI), Hyo-Jin Lee of 8Percent, In-Chang Hwang from the Korea Insurance Research Institute, and Jae-Kyu Lee from Koscom.
Byung-Chun Kim, the Director of KAIST’s Financial Engineering Research Center, who organized the FinTech conference said, “FinTech industry will evolve from simply attempting to attract consumers to understanding the lifestyle patterns of consumers to provide customized service and information.”
2015.05.20 View 8542 -
KAIST Holds a Ceremony to Present the Cho Jeong-Hoon Academic Award
Doctor Gyu-Tae Kim from General Electric (GE) received the eleventh Cho Jeong-Hoon Academic Award. The award ceremony took place in the main conference room of the administration building on campus on May 13, 2015.
Dr. Kim, a graduate of KAIST, conducts research in the field of instable swirl combustion of gas turbines and has contributed to the development of aircraft engines. He earned his name as a researcher by identifying, for the first time in the world, the correlation between the thermoacoustic instability of gas turbine engines and the complex response of swirl flames.
Along with Dr. Kim, Shin-Jae Kang of the Aerospace Engineering Department, KAIST, Yong-Gyun Bae of the Mechanical Engineering Department, Korea University, and Ji-Won Kim from Kongju National University High School, received the Cho Jeong-Hoon scholarship.
The award was created in commemoration of Cho Jeong-Hoon who was killed in an explosion during his research at the KAIST Rocket Laboratory on May 13, 2003. Cho’s parents donated USD 450,000 to KAIST in his memory. Since 2005, a total of four students from KAIST, Korea University, and Kongju National University High School, all of which the late Honorary Doctor Cho attended, have received the scholarship.
2015.05.19 View 6983 -
KAIST's Patina Engraving System Awarded at ACM CHI
Professor Tek-Jin Nam’s research team of the Industrial Design Department of KAIST received the Best Paper Award in the 2015 Association for Computing Machinery’s (ACM) Conference on Human Factors in Computing Systems (CHI) which was held from April 18 to 23, 2015. The team consisted of two KAIST students: Moon-Hwan Lee, a Ph.D. candidate, and Sejin Cha, a master's student. The team was the first in Asia to receive the award.
The ACM CHI represents the premier conference in the field of Human-Computer Interaction (HCI). This year’s event, held in Seoul, South Korea, was the first conference that the ACM had held in Asia in its thirty-three year history. The KAIST team’s paper, entitled “Patina Engraver: Visualizing Activity Logs as Patina in Fashionable Trackers,” ranked in the top 1% of 2,000 submitted papers.
The team developed Patina Engraver, an activity tracker, which monitors and tracks fitness-related metrics such as distances walked or run, calorie consumption, heartbeat, sleep quality, and blood pressure. The device wirelessly connects to a computer or smartphone so that it can store and utilize long-term tracking data.
However, what makes Patina Engraver, a smart wristband, different from other health trackers is its ability to display different design patterns based on users’ activity on the surface of the wristband. The research team was inspired to build this system from the fact that wearable electronics including activity trackers can be used not only as health care devices, but also as fashion items to express emotions and personalities.
Equipped with an engraving feature, the charging pad or holder for Patina Engraver draws individualized patterns to reflect the user’s activities, such as walking or running, while the device is being charged. The pattern display syncs with the frequency of usage, therefore, the more the tracker is used, the greater the number of patterns will show up.
According to the team, since Patina Engraver provides users with a personalized illustration of their activity on the tracker, users are more motivated to put on the tracker and exercise.
Professor Nam said, “This research can be applied in producing other wearable devices to enhance users’ emotional satisfaction. When wearable technology is combined with design and emotion, the industry market will quickly expand.”
Figure 1: Patina engraving system developed by KAIST research team
Figure 2: The process of engraving illustrations of the activity records onto the tracker
Figure 3: Personalized activity trackers based on activity records
2015.05.15 View 12179 -
KAIST Hosts the Wearable Computer Contest 2015
Deadlines for Prototype Contest by May 30, 2015 and August 15 for Idea Contest
KAIST will hold the Wearable Computer Contest 2015 in November, which will be sponsored by Samsung Electronics Co., Ltd.
Wearable computers have emerged as next-generation mobile devices, and are gaining more popularity with the growth of the Internet of Things. KAIST has introduced wearable devices such as K-Glass 2, a smart glass with augmented reality embedded. The Glass also works on commands by blinking eyes.
This year’s contest with the theme of “Wearable Computers for Internet of Things” is divided into two parts: the Prototype Competition and Idea Contest.
With the fusion of information technology (IT) and fashion, contestants are encouraged to submit prototypes of their ideas by May 30, 2015. The ten teams that make it to the finals will receive a wearable computer platform and Human-Computer Interaction (HCI) education, along with a prize of USD 1,000 for prototype production costs. The winner of the Prototype Contest will receive a prize of USD 5,000 and an award from the Minister of Science, ICT and Future Planning (MSIP) of the Republic of Korea.
In the Idea Contest, posters containing ideas and concepts of wearable devices should be submitted by August 15, 2015. The teams that make it to the finals will have to display a life-size mockup in the final stage. The winner of the contest will receive a prize of USD 1,000 and an award from the Minister of MSIP.
Any undergraduate or graduate student in Korea can enter the Prototype Competition and anyone can participate in the Idea Contest.
The chairman of the event, Hoi-Jun Yoo, a professor of the Department of Electrical Engineering at KAIST, noted:
“There is a growing interest in wearable computers in the industry. I can easily envisage that there will be a new IT world where wearable computers are integrated into the Internet of Things, healthcare, and smart homes.”
More information on the contest can be found online at http://www.ufcom.org.
Picture: Finalists in the last year’s contest
2015.05.11 View 7278 -
Professor Jinwoo Shin Receives the Bloomberg Scientific Research Award
Professor Jinwoo Shin (https://sites.google.com/site/mijirim/) of the Electrical Engineering Department at KAIST has been selected as one of the three winners to receive the first Bloomberg Scientific Research Award this month. The newly created award is presented to researchers in computer science who conduct high-quality research in such areas as machine learning, natural language processing, machine translation, statistics, and theory.
Professor Shin submitted his research proposal entitled “Scalable Probabilistic Deep Leaning,” and the award will support funding his research for one year. For details, please click on the link below for an article released by Bloomberg News, announcing the winners of the award:
Bloomberg News, April 28, 2015
“Announcing the Winners of the Bloomberg’s First Scientific Research Program”
https://3blmedia.com/News/Announcing-Winners-Bloombergs-First-Scientific-Research-Program
2015.04.30 View 7273 -
KAIST and the Naver Corporation Agree to Cooperate in Computer Science
KAIST and Naver, a Korean Internet corporation, concluded a memorandum of understanding (MOU) on April 17, 2015, to cooperate in advancing research and education in computer science.
Doo-Hwan Bae (pictured on the right below), the Dean of School of Computing at KAIST and Jong-Mok Park (pictured on left), the Director of Technical Cooperation at Naver, signed the MOU.
Under this agreement, the two organizations will foster computer scientists and engineers, conduct joint research projects, and develop training programs for entrepreneurs.
KAIST and Naver will organize a steering committee to lay out further details on the agreement.
2015.04.17 View 7394 -
KAIST Hosts a Symposium on IPR
KAIST’s Graduate School of Future Strategy (http://futures.kaist.ac.kr) hosted a symposium entitled “Future Strategies to Grow Korea as the Hub for the World’s Intellectual Property Rights (IPRs)” under the theme of “Patent Laws and a Revised Bill for the Code of Civil Procedures” in the National Assembly’s Memorial Hall on April 9, 2015.
Experts who attended the symposium included Professor James Dator, Director of the Hawaii Research Center for Futures Studies, Sang-Wook Han, a lawyer and Vice President of Korea Intellectual Property Protection Association (KIPRA), and Min Seo, a former Chairman of Civil Law Revision Commission of the Ministry of Justice, Korea.
The event consisted of special lectures, patent law presentations, a revised bill for the code of civil procedures in patent law, and a general discussion forum. Professor Dator, the keynote speaker, addressed the future of intellectual property. San-Wook Han (KIPRA) talked about new and effective changes in Korean patent law such as the compensation against IPR violations and the reduction of legal burden of proof in IPR disputes. Min Seo from the Ministry of Justice moderated a panel of eight members, which offered an in-depth discussion on the revised bill.
A ceremony for “The Third Future Strategy Award” was also held at the symposium. Yeon-Soo Park, former Administrator of the National Emergency Management Agency, received the award for his work on the Northeast Asian International Business Center City Project which enabled the construction of Incheon International Airport and Songdo International City.
2015.04.09 View 10089 -
Novel Photolithographic Technology Enabling 3D Control over Functional Shapes of Microstructures
Professor Shin-Hyun Kim and his research team in the Department of Chemical and Biomolecular Engineering at KAIST have developed a novel photolithographic technology enabling control over the functional shapes of micropatterns using oxygen diffusion.
The research was published online in the March 13th issue of Nature Communications and was selected as a featured image for the journal.
Photolithography is a standard optical process for transferring micropatterns on to a substrate by exposing specific regions of the photoresist layer to ultraviolet (UV) light. It is used widely throughout industries that require micropatterns, especially in the semiconductor manufacturing industry.
Conventional photolithography relied on photomasks which protected certain regions of the substrate from the input UV light. Areas covered by the photomasks remain intact with the base layer while the areas exposed to the UV light are washed away, thus creating a micropattern. This technology was limited to a two-dimensional, disc-shaped design as the boundaries between the exposed and roofed regions are always in a parallel arrangement with the direction of the light.
Professor Kim’s research team discovered that: 1) the areas exposed to UV light lowered the concentration of oxygen and thus resulted in oxygen diffusion; and 2) manipulation of the diffusion speed and direction allowed control of the growth, shape and size of the polymers. Based on these findings, the team developed a new photolithographic technology that enabled the production of micropatterns with three-dimensional structures in various shapes and sizes.
Oxygen was considered an inhibitor during photopolymerization. Photoresist under UV light creates radicals which initialize a chemical reaction. These radicals are eliminated with the presence of oxygen and thus prevents the reaction. This suggests that the photoresist must be exposed to UV light for an extended time to completely remove oxygen for a chemical reaction to begin.
The research team, however, exploited the presence of oxygen. While the region affected by the UV light lowered oxygen concentration, the concentration in the untouched region remained unchanged. This difference in the concentrations caused a diffusion of oxygen to the region under UV light.
When the speed of the oxygen flow is slow, the diffusion occurs in parallel with the direction of the UV light. When fast, the diffusion process develops horizontally, outward from the area affected by the UV light. Professor Kim and his team proved this phenomenon both empirically and theoretically. Furthermore, by injecting an external oxygen source, the team was able to manipulate diffusion strength and direction, and thus control the shape and size of the polymer. The use of the polymerization inhibitors enabled and facilitated the fabrication of complex, three-dimensional micropatterns.
Professor Kim said, “While 3D printing is considered an innovative manufacturing technology, it cannot be used for mass-production of microscopic products. The new photolithographic technology will have a broad impact on both the academia and industry especially because existing, conventional photolithographic equipment can be used for the development of more complex micropatterns.” His newest technology will enhance the manufacturing process of three-dimensional polymers which were considered difficult to be commercialized.
The research was also dedicated to the late Professor Seung-Man Yang of the Department of Chemical and Biomolecular Engineering at KAIST. He was considered one of the greatest scholars in Korea in the field of hydrodynamics and colloids.
Picture 1: Featured Image of Nature Communications, March 2015
Picture 2: Polymers with various shapes and sizes produced with the new photolithographic technology developed by Professor Kim
2015.04.06 View 9808 -
Polymers with Highly Improved Light-transformation Efficiency
A joint Korean research team, led by Professor Bum-Joon Kim of the Department of Chemical and Biomolecular Engineering at KAIST and Professor Young-Woo Han of the Department of Nanofusion Engineering at Pusan National University, has developed a new type of electrically-conductive polymer for solar batteries with an improved light-transformation efficiency of up to 5%. The team considers it a viable replacement for existing plastic batteries for solar power which is viewed as the energy source of the future.
Polymer solar cells have greater structural stability and heat resistance compared to fullerene organic solar cells. However, they have lower light-transformation efficiency—below 4%—compared to 10% of the latter. The low efficiency is due to the failure of blending among the polymers that compose the active layer of the cell. This phenomenon deters the formation and movement of electrons and thus lowers light-transformation efficiency.
By manipulating the structure and concentration of conductive polymers, the team was able to effectively increase the polymer blending and increase light-transformation efficiency. The team was able to maximize the efficiency up to 6% which is the highest reported ratio.
Professor Kim said, “This research demonstrates that conductive polymer plastics can be used widely for solar cells and batteries for mobile devices.”
The research findings were published in the February 18th issue of the Journal of the American Chemical Society (JACS).
Picture: Flexible Solar Cell Polymer Developed by the Research Team
2015.04.05 View 10030 -
KAIST Develops a Credit-Card-Thick Flexible Lithium Ion Battery
Since the battery can be charged wirelessly, useful applications are expected including medical patches and smart cards.
Professor Jang Wook Choi at KAIST’s Graduate School of Energy, Environment, Water, and Sustainability (EEWS) and Dr. Jae Yong Song at the Korea Research Institute of Standards and Science jointly led research to invent a flexible lithium ion battery that is thinner than a credit card and can be charged wirelessly.
Their research findings were published online in Nano Letters on March 6, 2015. Lithium ion batteries are widely used today in various electronics including mobile devices and electronic cars. Researchers said that their work could help accelerate the development of flexible and wearable electronics.
Conventional lithium ion batteries are manufactured based on a layering technology, stacking up anodes, separating films, and cathodes like a sandwich, which makes it difficult to reduce their thickness. In addition, friction arises between layers, making the batteries impossible to bend. The coating films of electrodes easily come off, which contributes to the batteries’ poor performance.
The research team abandoned the existing production technology. Instead, they removed the separating films, layered the cathodes and anodes collinearly on a plane, and created a partition between electrodes to eliminate potential problems, such as short circuits and voltage dips, commonly present in lithium ion batteries.
After more than five thousand consecutive flexing experiments, the research team confirmed the possibility of a more flexible electrode structure while maintaining the battery performance comparable to the level of current lithium ion batteries.
Flexible batteries can be applied to integrated smart cards, cosmetic and medical patches, and skin adhesive sensors that can control a computer with voice commands or gesture as seen in the movie “Iron Man.”
Moreover, the team has successfully developed wireless-charging technology using electromagnetic induction and solar batteries.
They are currently developing a mass production process to combine this planar battery technology and printing, to ultimately create a new paradigm to print semiconductors and batteries using 3D printers.
Professor Choi said, “This new technology will contribute to diversifying patch functions as it is applicable to power various adhesive medical patches.”
Picture 1: Medical patch (left) and flexible secondary battery (right)
Picture 2: Diagram of flexible battery
Picture 3: Smart card embedding flexible battery
2015.03.24 View 10860