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- Global Capstone Design Team Wins at 2017 PACE Global Annual Forum
- The 1st semester ‘Global Capstone Design’ team (Advisory Professors: Gwan Soo HAN, Sang Do NOH) received 3rd prize for the Product Engineering, Industrial Design field in the PUMA Project Competition at the ‘2017 PACE Global Annual Forum’. The 2017 PACE Global Annual Forum was held from July 24th to 27th in Toluca, Mexico, and 6 teams from 30 universities in 8 countries participated in the competition. PUMA stands for Personal Urban Mobility Access. The team from SKKU invented a personal mobility and transportation service for the baby boomer generation. With support from the SKKU LINC Business Unit, 28 students majoring in subjects such as Systems Management Engineering, Mechanical Engineering, Electronic and Electrical Engineering, Psychology, and Design participated in the event. Over the course of one year, they organized a team with various universities including UPRM, Purdue University, Howard University, Ibero-American University, ITESM, Kookmin University, and Inha Unversity. The ‘Global Capstone Design’ team will seek a higher degree of completion for the project through the advanced education program ‘Advanced Convergence Capstone Design’ and by attending other international competitions and start-ups.
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- 작성일 2017-08-07
- 조회수 6576
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- Prof. Keun Tae CHO of Dept. of Systems Management Engineering Receives Minister Prize
- Prof. Keun Tae CHO of the Department of Systems Management Engineering at SKKU received the Minister Prize from the Ministry of Trade, Industry and Energy at the ‘Management of Technology (MOT) 10th Anniversary Conference’ held at Techno Valley in Pangyo on June 9th, 2017. Prof. CHO received the award by recognition of his dedication for propagating technology management by operating ‘reward system for excellent MOT corporations’ and MOT education programs for manager-level staff members.
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- 작성일 2017-07-10
- 조회수 6571
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- SKKU Enters Top 100 in THE World Reputation Rankings for First Time
- SKKU has placed within top 100 in World Reputation Rankings by Times Higher Education (THE) for the first time. On July 15th, THE announced the World Reputation Rankings 2017. In the evaluation, three universities in Korea were listed in Top 100: Seoul National University (45th), KAIST (81~90th), and SKKU (81~90th). Meanwhile, Harvard University ranked No. 1 for the seventh year in a row while MIT and Stanford University placed 2nd and 3rd, respectively. The THE World Reputation Rankings 2017 are based on an opinion survey of 10,566 academic scholars in 137 countries. Full analysis can be checked at THE’s website: www.timeshighereducation.com
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- 작성일 2017-07-05
- 조회수 6327
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- Ultraclean transfer method developed for large-area 2-dimensional semiconductors
- Prof. LEE, CHANG GU(Mechanical Engineering) Graphene, which was discovered in 2005 and awarded the Nobel Prize in 2010, has been so intensely studied due to its high charge carrier mobility, high electric conductivity, superior mechanical strength, excellent chemical stability, and high optical property, and its commercialization has been attempted in various ways and areas. However, despite those strengths, it has been considered hard to be utilized as an electronic material due to the zero bandgap. Overcoming the weakness of graphene, 2-dimensional (2D) semiconductors, such as molybdenum disulfide (MoS2), began to be investigated and are gaining attention and interest among scientists and engineers. Unlike graphene, 2D semiconductors have some bandgaps similar to that of silicon and exhibit reasonable charge carrier mobilities. Hence they are expected to become one of the main semiconducting materials for the next-generation electronics. In addition, it is highly probable that they will become an important material for flexible electronics due to the atomic-level thickness. However, still large-area synthesis or transfer techniques for commercialization of 2D semiconductors are being developed at too slow pace and are at immature stage. Out research team have been developing techniques to grow 2D semiconductors at wafer-scale and to transfer unto flexible substrates and have fabricated high-performance electronic device arrays. At first, a 2D semiconductor is synthesized at 600 degrees on a silicon substrate and the synthesized film is transferred onto a plastic substrate using epoxy glue. (Refer to figure 1) In this process, the liquid-phase glue is poured onto the plastic substrate and the 2D semiconductor film is glued and cured. Then, the glued 2D material film is separated from the silicon substrate in water. The film is easily separated because of its hydrophobicity. Conventionally, when 2D materials are transferred, the substrate had to be etched or they had to be transferred twice to the final target substrate. During the transfer, the film was damaged due to the chemical corrosion or mechanical stress and the quality was degraded. However, the transferred film of ours did not have any sign of damage, and the quality before and after the transfer was almost identical. This is because the atomic-level flatness is maintained and no residues remain even after the transfer. This transfer technique can be applied to various 2D semiconductors at large size, used to the fabrication of flexible displays, sensors, and logic devices, and adopted to the commercial mass-production processes. Figure 1. 2D semiconductor transfer process Figure 2. 2D semiconductor before and after transfer. The atomic-level flatness of the transferred film.
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- 작성일 2017-06-26
- 조회수 6461
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- A wet-tolerant adhesive patch inspired by protuberances in suction cups of octopi
- A wet-tolerant adhesive patch inspired by protuberances in suction cups of octopi -Nature, Materials science: How to suck like an octopus- Adhesion strategies that rely on mechanical interlocking or molecular attractions between surfaces can suffer when coming into contact with liquids. Thus far, artificial wet and dry adhesives have included hierarchical mushroom-shaped or porous structures that allow suction or capillarity, supramolecular structures comprising nanoparticles, and chemistry-based attractants that use various protein polyelectrolytes. However, it is challenging to develop adhesives that are simple to make and also perform well- and repeatedly- under both wet and dry conditions, while avoiding non-chemical contamination on the adhered surfaces. Here Prof. Chang Hyun PARK and his team present an artificial, biologically inspired, reversible wet/dry adhesion system that is based on the dome-like protuberances found in the suction cups of octopi. To mimic the architecture of these protuberances, they use a simple, solution-based, air-trap technique that involves fabricating a patterned structure as a polymeric master, and using it to produce a reversed architecture, without any sophisticated chemical syntheses or surface modifications. The micrometre-scale domes in our artificial adhesive enhance the suction stress. This octopus-inspired system exhibits strong, reversible, highly repeatable adhesion to silicon wafers, glass, and rough skin surfaces under various conditions (dry, moist, under water and under oil). To demonstrate a potential application, they also used our adhesive to transport a large silicon wafer in air and under water without any resulting surface contamination. Their octopus-inspired adhesives might be useful when applied over skin or a wound and so partially assist with wound healing. They note that our patches promoted wound healing less well than did 3M Tegaderm, but they are investigating stem-cell and drug-loading approaches to improve their practical utility. Please follow the link for the published news. http://www.nature.com/nature/journal/v546/n7658/full/546358a.html http://gizmodo.com/octopus-inspired-materials-could-one-day-save-your-life-1796090566
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- 작성일 2017-06-19
- 조회수 6607
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- Photonic neuromorphic devices: For the light speed cognitive computing
- The Von Neumann computer only can do well-structured mathematical calculation. The brain, However, can make proper decision under unfamiliar situations based on the past experience and memory consuming 20 Watt so that the brain have been attracting as a biological model to make the energy-efficient cognitive computing system. Neural cell, which is the building block of the brain transmit the electrical and chemical information through the synapse and its connecting strength is modulated according to the neural activities. This operating principle contributes to a significant role in learning and memory so that the key issue for making brain-like electronics is to emulate behaviors of neurons and synapses. Recently, a team of researchers from the Sungkyunkwan University in Suwon, Korea, led by Prof. S. K. PARK and Prof. Y. H. KIM successfully mimic short-term memory/long-term memory, spike-timing dependent plasticity and neural facilitation, which is a major synaptic function for learning and memory, in Advanced Materials. These synaptic functions were emulated by using the inherent persistent photoconductivity characteristics of amorphous oxide semiconductors (AOSs). Prof. KIM et al. not only emulate synaptic functions of the brain, but also explore the dynamics of photo-generated carriers for various AOSs systematically to reveal the underlying mechanisms of the photo-induced carrier generation and relaxation behaviors. They found that the activation energy for the neutralization of ionized oxygen vacancies had a significant influence on the photo-carrier dynamics. Given that photonic neuromorphic devices opens the door of opportunities for the mimicry of learning and memory function with the ultrafast operating speed and broad bandwidth for applications in cognitive computing system.
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- 작성일 2017-06-09
- 조회수 6514
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- Professor YOO, Chungsik, appointed as President of Korean Geosynthetics Society
- Professor YOO, Chungsik, Vice Dean of the College of Engineering appointed as President of Korean Geosynthetics Society for 2 years on April 20, 2017. The Korean Geosynthetics Society is the academic research association on Geotextiles and Geomembranes and Geosynthetics. Professor Yoo worked as Vice President of International Geosynthetics Society. The Organizing Committee of the 11th International Conference on Geosynthetics (11ICG) invites all interested geotechnical and geosynthetics professionals and academics to submit oral and poster abstracts. We welcome you to contribute to the most up-to-date research and latest developments from around the world. (http://www.11icg-seoul.org/)
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- 작성일 2017-05-29
- 조회수 6413
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- 7th KANEKA/SKKU Incubation Center International Symposium 2017 held at Natural Sciences Campus
- 7th KANEKA/SKKU Incubation Center International Symposium 2017 were held on March 31st at the Natural Sciences Campus. Since the establishment of the KANEKA/SKKU Incubation Center in 2010 with financial support from the KANEKA Corporation, SKKU and KANEKA have been conducting joint research together in the field of electronic material technology. The symposium is part of the joint research. The event started with an opening speech by Prof. Seong Hyeon YUN of Samsung Medical Center, followed by lectures about “Self-assembled Supramolecular Nanosystems for Smart Diagnosis and Therapy of Intractable Disease” from Kazunori KAKAOKA of the University of Tokyo as well as the Director of the Biomedical Institute for Convergence at SKKU. Also, a special lecture from Prof. Masateru ISHIGURO (Seoul National University) regarding “The Japanese Asteroid Missions” was delivered while other valuable lectures were also given by Prof. Tsutomu MIYASAKE (Toin University), Prof. Nam Gyu PARK (SKKU), Prof. Tae Woo LEE (Seoul National University), Prof. Emeritus Katsuhiko TAKAGI (Nagoya University), and Dr. Toshikazu YAMADA (AIST). Meanwhile, in recognition of the contribution to scientific technology exchange between Korea and Japan, an appreciation plaque was presented to the Vice-President of KANEKA Corporation, Mr. NAGANO. The meeting was successfully concluded with lectures from distinguished professors and many participants including professors and students from SKKU as well as officials from top global companies such as Samsung, LG, KOLON, ADEKA, and DAIKIN.
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- 작성일 2017-04-25
- 조회수 6641
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- Research on Future Electronic Devices
- Multifunctional Soft Electronics Lab. (Principle investigator; Prof Tae-il Kim; School of Chemical Engineering/Department of Biomedical Engineering/Graduate School of Human ICT Convergence) is studying next-generation electronics; flexible electronics, biomimetics and bio-integrated electronics which have recently attracted attention globally. In particular, the lab are leading worldwide in related research on brain penetrating electronics (Science, 2013) and spider's sensory receptor inspired electronics (Nature 2014). The research themes of the laboratory are as follows: 1. Nanofabrication Lithography in the semiconductor industry is the most important technique, and forming small patterns is indispensable for deriving low cost, high element characteristics. This laboratory is using an unconventional method instead of light illumination. It instead utilizes a polymer mold to form a nanoscale pattern sat low cost by utilizing various natural forces (such as capillary force, adhesiveness, surface tension, etc.). We have announced a large number of patents and papers every year, including ACS Applied Materials and Interface (7, p8070, 2016). 2. Biomimetics We are imitating various natural structures with the nanofabrication technique we accomplished and aim for engineering reproduction of the unique properties. In particular, it was confirmed that adhesive strength increased several hundred times or more by mounting a gradient cilia structure of Gecko Lizard (Foot), Advanced Materials 21,p 6575 (2009). In addition, we developed nano-crack based sensors by spiders (Nature 516, p222 (2014)) and showed that it can be applied to wearable electronic devices, especially by voice signal. 3. Flexible Electronics Flexible semiconductors utilizing organic materials have been receiving the spotlight recently. However, the material itself has the disadvantage of being easy to oxidize, and there are limitations to realizing the high characteristics required in the present era. This laboratory have unique techniques for assembling inorganic thin film devices on a sheet of plastic without device degradation. High performance inorganic electronics on flexible templates can be achieved. 4. Bio-integrated Electronics We are conducting research on bio-electronics that can adhere to human skin or be inserted into the brain and organs. They can measure nerve signals or stimulate the brain with electronic devices. (Science 340, p211 (2013)). This has recently become an important starting point for the fusion research of Neuroscience and Engineering. Research on devices related to melting and disappearing in the body after operating for a certain period of time is ongoing.
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- 작성일 2017-04-25
- 조회수 6523
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- College of Engineering is Evolving as an ‘Entrepreneurial College’
- SKKU’s College of Engineering has set their vision as a ‘Global Top 20 by 2020’ and has planned 3 core strategies. Last year, several departments in the College of Engineering were placed in the world top 50, such as; School of Advanced Materials Sciences and Engineering (40th), School of Chemical Engineering (48th), and School of Mechanical Engineering (50th). The College of Engineering is evolving as an ‘Entrepreneurial College’ which can create future new industry, and they announced 3 core strategies for its realization: (1) Cultivate outstanding engineers with convergence thinking by providing curriculums combined with research and industry cooperation, (2) Make smart innovation R&BD environment to reinforce research ability and specialization of industrial cooperation, (3) Expand global open networks. The main development strategy in order to evolve as an ‘Entrepreneurial College’ is the planning of ‘Success 3.0’. This is a strategy of an innovative education and research plan, designed for the 4th industrial revolution based on the smart environment. As one of the plans for the educational aspect in the ‘Success 3.0’, every department implemented the ABEEK system in order to produce ‘Holistic Engineer’ who have good conduct, convergence knowledge, software skills, global competence, and social responsibility. Also, various programs such as Grand Challenge Tech + Innovator certification system, Smart Car Track certification system, and Material School certification system are provided to produce leaders in the 4th industrial revolution. Furthermore, the team research activity credit system and flipped class have been offered more. Meanwhile, the ‘Successful Research Society’ has been initiated. This society was created in order to explore and practice globally raised research issues, with experts in the industries. There are 7 societies in the areas of autonomous smart vehicle, smart health wearable equipment, smart water total care, and so on. Research income also exceeded 85 billion won. Moreover, Multimodal walking robot and Women Engineers Fostering Program are under operation, while 9 projects for BK21+ Project have been selected. Every member in the College of Engineering is striving to realize their vision of ‘Global Top 20 by 2020’ and these efforts will continue into the future.
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- 작성일 2017-04-25
- 조회수 6615