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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 13790 -
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 8242 -
Professor Sang Ouk Kim Receives the POSCO Academic Award
Professor Sang Ouk Kim of KAIST’s Department of Materials Science and Engineering received the 2015 POSCO Academic Award. The award ceremony took place at the annual conference of the Korean Institute of Metals and Materials on April 23, 2015.
The POSCO Academic Award has been presented to the Institute's researchers and academics in recognition of their contributions to the advancement of metals and materials engineering in Korea.
Professor Kim is known for his pioneering work in manipulating the properties (work function, conductivity, surface energy, chemo-responsiveness, etc.) of carbon-based materials using double-element doping. Through his research, Professor Kim showed that carbon materials could be extremely useful in various areas including solar batteries and flexible devices. His work has been recognized and published in such journals as Advanced Materials, which invited him to write a review paper on his research in its 25th anniversary issue in 2014, along with world-renowned scholars including the Nobel laureate Alan Heeger.
Professor Kim has published a total of 143 Science Citation Index papers in journals like Nature, Science, Nature Materials, Nature Communications, Advanced Materials, Nano Letters, and Physical Review Letters. According to Scopus, a bibliographic database containing abstracts and citations for academic journal articles, he has been cited 6,456 times and has the h-index of 44, an index describing the scientific productivity and impact of a researcher.
2015.04.22 View 10476 -
KAIST's Alumni Announces Its Vision to Raise Development Funds
The 40th anniversary of the Graduation and Homecoming Day took place at Seoul campus on April 18, 2015.
KAIST’s alumni announced its long-term vision called “Honor KAIST” to raise the development fund of USD 1 billion by 2100 at the 40th anniversary of “The First Master’s Graduation and Homecoming Day.” The anniversary ceremony took place at the Seoul campus on April 18, 2015. President Steve Kang, Man-Ki Paik, President of KAIST Alumni Association, and the first graduates of KAIST master’s program attended the event.
The first 106 master’s graduates of KAIST, the Class of 1975, received their degrees from eight departments. About 18 professors, including Dr. KunMo Chung, who taught the Class of 1975, and 52 graduates such as Suk-Joong Kang, Sik-Chol Kwon, Youngkyu Do, Sung Joo Park, Joon-Taik Park, Hyung-Kang Shin, Dong-Yol Yang, Seong Ihl Woo, Jae Kyu Lee, In-Won Lee, Byoung-Kyu Choi, and Kyu-Young Hwang participated in the homecoming event that proceeded with the tour of Seoul campus and the ceremony to deliver the first donation by the graduates.
The graduates involved in the vision campaign declared: “KAIST graduates have great pride in having taken part in advancing science and technology in Korea and are grateful for the education given by the nation. There is still a long way ahead for KAIST and Korea. The alumni should work together to help shaping the future of KAIST with great interest and affection for the institution.” They also urged KAIST graduates to donate more for their alma mater: “Let us try to participate in donating USD 100,000 in our lifetime!” The graduates added, “Having donations up to USD 1 billion helped MIT become a great university. We should take the lead in aiming to collect such amount by 2100 for KAIST.”
President Kang addressed the ceremony and said in his speech, “The Honor KAIST Development Funds will serve as the foundation for the university’s continuous, strong growth. Every member of KAIST will work in harmony to transfer KAIST into one of the top ten research universities in the world.” He continued, “The funds will be used to further future strategies of KAIST such as high impact Nobel-prize level research and innovative education.”
Contributors will receive benefits including an honorary lifetime email account entitled “Honor.KAIST” and will have their names listed on “The Honor KAIST” website and “The Honor KAIST” commemorative wall.
Picture 1: The First Master’s Graduation and Homecoming Day 2015
Picture 2: President Steve Kang (right) and President Man-Ki Paik of the KAIST Alumni Association
2015.04.22 View 8909 -
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 8306 -
KAIST Researchers Develops Hyper-Stretchable Elastic-Composite Energy Harvester
A research team led by Professor Keon Jae Lee (http://fand.kaist.ac.kr) of the Department of Materials Science and Engineering at KAIST has developed a hyper-stretchable elastic-composite energy harvesting device called a nanogenerator.
Flexible electronics have come into the market and are enabling new technologies like flexible displays in mobile phone, wearable electronics, and the Internet of Things (IoTs). However, is the degree of flexibility enough for most applications? For many flexible devices, elasticity is a very important issue. For example, wearable/biomedical devices and electronic skins (e-skins) should stretch to conform to arbitrarily curved surfaces and moving body parts such as joints, diaphragms, and tendons. They must be able to withstand the repeated and prolonged mechanical stresses of stretching. In particular, the development of elastic energy devices is regarded as critical to establish power supplies in stretchable applications. Although several researchers have explored diverse stretchable electronics, due to the absence of the appropriate device structures and correspondingly electrodes, researchers have not developed ultra-stretchable and fully-reversible energy conversion devices properly.
Recently, researchers from KAIST and Seoul National University (SNU) have collaborated and demonstrated a facile methodology to obtain a high-performance and hyper-stretchable elastic-composite generator (SEG) using very long silver nanowire-based stretchable electrodes. Their stretchable piezoelectric generator can harvest mechanical energy to produce high power output (~4 V) with large elasticity (~250%) and excellent durability (over 104 cycles). These noteworthy results were achieved by the non-destructive stress- relaxation ability of the unique electrodes as well as the good piezoelectricity of the device components. The new SEG can be applied to a wide-variety of wearable energy-harvesters to transduce biomechanical-stretching energy from the body (or machines) to electrical energy.
Professor Lee said, “This exciting approach introduces an ultra-stretchable piezoelectric generator. It can open avenues for power supplies in universal wearable and biomedical applications as well as self-powered ultra-stretchable electronics.”
This result was published online in the March issue of Advanced Materials, which is entitled “A Hyper-Stretchable Elastic-Composite Energy Harvester.”
YouTube Link: “A hyper-stretchable energy harvester”
https://www.youtube.com/watch?v=EBByFvPVRiU&feature=youtu.be
Figure: Top row: Schematics of hyper-stretchable elastic-composite generator enabled by very long silver nanowire-based stretchable electrodes.
Bottom row: The SEG energy harvester stretched by human hands over 200% strain.
2015.04.14 View 13876 -
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 10993 -
Wall Climbing Quadcopter by KAIST Urban Robotics Lab
Popular Science, an American monthly magazine devoted to general readers of science and technology, published “Watch This Creepy Drone Climb A Wall” online describing a drone that can fly and climb walls on March 19, 2015. The drone is the product of research conducted by Professor Hyun Myung of the Department of Civil and Environmental Engineering at KAIST. The flying quadcopters can turn into wall-crawling robots, or vice versa, when carrying out such assignments as cleaning windows or inspecting a building’s infrastructure. Professor Myung leads the KAIST Urban Robotics Lab (http://urobot.kaist.ac.kr/). For a link to the article, see http://www.popsci.com/watch-drone-climb-wall-video.
Another Popular Science article (posted on April 3, 2015), entitled “South Korea Gets Ready for Drone-on-Drone Warfare with North Korea,” describes a combat system of drones against hostile drones. Professor Hyunchul Shim of the Aerospace Engineering Department at KAIST developed the anti-drone system. He currently heads the Unmanned System Research Group, FDCL, http://unmanned.kaist.ac.kr/) and the Center of Field Robotics for Innovation, Exploration, aNd Defense (C-FRIEND).
2015.04.07 View 12573 -
Anti-Cancer Therapy Delivering Drug to an Entire Tumor Developed
KAIST’s Department of Bio and Brain Engineering Professor Ji-Ho Park and his team successfully developed a new highly efficacious anti-cancer nanotechnology by delivering anti-cancer drugs uniformly to an entire tumor. Their research results were published in Nano Letters online on March 31, 2015.
To treat inoperable tumors, anti-cancer medicine is commonly used. However, efficient drug delivery to tumor cells is often difficult, treating an entire tumor with drugs even more so.
Using the existing drug delivery systems, including nanotechnology, a drug can be delivered only to tumor cells near blood vessels, leaving cells at the heart of a tumor intact. Since most drugs are injected into the bloodstream, tumor recurrence post medication is frequent.
Therefore, the team used liposomes that can fuse to the cell membrane and enter the cell. Once inside liposomes the drug can travel into the bloodstream, enter tumor cells near blood vessels, where they are loaded to exosomes, which are naturally occurring nanoparticles in the body. Since exosomes can travel between cells, the drug can be delivered efficiently into inner cells of the tumor.
Exosomes, which are secreted by cells that exist in the tumor microenvironment, is known to have an important role in tumor progression and metastasis since they transfer biological materials between cells. The research team started the investigation recognizing the possibility of delivering the anti-cancer drug to the entire tumor using exosomes.
The team injected the light-sensitive anti-cancer drug using their new delivery technique into experimental mice. The researchers applied light to the tumor site to activate the anti-cancer treatment and analyzed a tissue sample. They observed the effects of the anti-cancer drug in the entire tumor tissue.
The team’s results establish a ground-breaking foothold in drug delivery technology development that can be tailored to specific diseases by understanding its microenvironment. The work paves the way to more effective drug delivery systems for many chronic diseases, including cancer tumors that were difficult to treat due to the inability to penetrate deep into the tissue.
The team is currently conducting experiments with other anti-cancer drugs, which are being developed by pharmaceutical companies, using their tumor-penetrating drug delivery nanotechnology, to identify its effects on malignant tumors.
Professor Park said, “This research is the first to apply biological nanoparticles, exosomes that are continuously secreted and can transfer materials to neighboring cells, to deliver drugs directly to the heart of tumor.”
Picture: Incorporation of hydrophilic and hydrophobic compounds into membrane vesicles by engineering the parental cells via synthetic liposomes.
2015.04.07 View 12139 -
Professor Rim Presents at IAEA Workshop in Vienna
Professor Chun-Taek Rim of the Department of Nuclear and Quantum Engineering at KAIST recently attended the International Atomic Energy Agency (IAEA)’s workshop on the Application of Wireless Technologies in Nuclear Power Plant Instrumentation and Control System. It took place on March 30-April 2, 2015, in Vienna, Austria.
Representing Korea, Professor Rim gave a talk entitled “Highly Reliable Wireless Power and Communications under Severe Accident of Nuclear Power Plants (NPPs).” About 20 industry experts from 12 countries such as AREVA (France), Westinghouse (US), Oak Ridge National Laboratory (US), Hitachi (Japan), and ENEA (Italy) joined the meeting.
The IAEA hosted the workshop to explore the application of wireless technology for the operation and management of NPPs. It formed a committee consisting of eminent professionals worldwide in NPP instrumentation and control systems, communications, and nuclear power to examine this issue in-depth and to conduct various research projects for the next three years.
In particular, the committee will concentrate its research on improving the reliability and safety of using wireless technology, not only in the normal operation of nuclear plants but also in extreme conditions such as the Fukushima Daiichi nuclear accident. The complementation, economic feasibility, and standardization of NPPs when applying wireless technology will be also discussed.
Professor Rim currently leads the Nuclear Power Electronics
and Robotics Lab at KAIST (http://tesla.kaist.ac.kr/index_eng.php?lag=eng).
Picture 1: Professors Rim presents his topic at the IAEA Workshop in Vienna.
Picture 2: The IAEA Workshop Participants
2015.04.07 View 12942 -
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 11143 -
Professor Shim Featured with His Drone System in IEEE Spectrum
The IEEE Spectrum, a technology and science magazine published by the Institute of Electrical and Electronics Engineers (IEEE), featured an article of KAIST’s autonomous unmanned aerial vehicles (UAVs) entitled “South Korea Prepares for Drone vs. Drone Combat,” posted on April 1, 2015.
The article introduces the anti-drone defense system being developed by Professor “David” Hyunchul Shim of the Department of Aerospace Engineering at KAIST. With the goal of developing guard drones that can detect and capture unknown UAVs, the anti-drone defense system consists of reconnaissance drones, agile multi-rotor UAVs equipped with nets which are dropped to snare enemy drones, and transport UAVs to carry smaller drones.
Professor Shim currently leads KAIST’s Unmanned System Research Group (USRG, http://unmanned.kaist.ac.kr/) and Center of Field Robotics for Innovation, Exploration, aNd Defense (C-FRIEND).
For the article, please go to http://spectrum.ieee.org/automaton/robotics/aerial-robots/south-korea-drone-vs-drone.
2015.04.02 View 13372