-
- WISET hosts 2019 Girls’ Engineering Weeks
- SKKU’s WISET (Women in Science, Engineering and Technology) held the “2019 Girls’ Engineering Weeks” on July 23rd at the Natural Sciences Campus. The main theme of this event was “Fulfilling 20s dream with engineering and science”. 230 students and parents from 66 middle/high school in Seoul/Gyeonggi region joined this event. The program began with a special lecture by Director Miae SON. Students had a chance to learn about 16 different majors in engineering and science and over 50 mentors who are current students at SKKU described their life in university. The open lab tour was conducted in the afternoon and students went around 17 labs to experience special facilities andtools that they have only seen in books. The admission administrative team also held an information session for parents and teachers who participated in the event. The WISET emphasized gender equality in engineering education and hoped to produce many excellent female engineers. https://news.joins.com/article/23534404
-
- 작성일 2019-08-09
- 조회수 5764
-
- Prof. Sangwoo KIM develops transcutaneous ultrasound energy harvesting using capacitive triboelectric technology
- [Figure 1] mimetic diagram of ultrasound passing through the skin to triboelectric device Professor Sangwoo KIM’s research team claimed that they have developed a new energy harvesting technology that can recharge implantable medical devices using the triboelectric created within the body. This research was conducted under the auspices of Ministry of Science and ICT’s program and it was published on world renowned journal “Science” on August 2nd. Title: Transcutaneous ultrasound energy harvesting using capacitive triboelectric technology Authors: Professor Sang-Woo KIM, Dr. Hong-Joon YOON, Dr. Ronan Hinchet, Dr. Hanjun RYU, Researcher Moo-kang KIM, Professor Eue-Keun CHOI, Dr. Dong-Sun KIM Implantable devices such as cardiac pacemakers and insulin pump require significant amount of external energy. There had been many efforts to convert the mechanical energy of the body to electric energy but it all failed because the amount of energy produced within the human body was insignificant. [Figure 2] power performance characteristic of triboelectric device The research team found a hint in the ultrasound waves used in diagnosis and treatments. They have proved that the external ultrasound causes transformation in a certain material implanted inthe body and the triboelectric caused during this process can be used as a source of energy. There had been attempts to use the triboelectric from the cardiac impulse of rats and pigs in the past. However, the output was very low that it cannot be used as a source of energy. The researchers were able to improve the electric current by 1000 times using the ultrasound waves. [Figure 3] characteristic of energy harvesting and performance depending on the condition of ultrasound Researchers implanted the triboelectric device in the rat and pig’s skin and induced triboelectric using external ultrasound waves. Through this, they proved that energy harvesting is possible in organic environment. Furthermore, the team was successful in charging commercial capacitor (4.7mF) and lithium ion battery (0.7mAh).
-
- 작성일 2019-08-09
- 조회수 5713
-
- Graduate School “SAVE” team achieves 2nd place in Hyundai Motors’ Autonomous Vehicle Competition
- 2019 Autonomous Vehicle Comeptition was held at the “K-City” with the sponsor of Hyundai Motors Corp. This competition first began in 1995 and students compete by creating an actual vehicle. This year’s event was the first time being held at a racing circuit. 12 team were selected by Hyundai Motors after screening and each team worked for 8 months to complete their vehicle. SKKU’s “SAVE” team vehicle came in 2nd place in the racing. Korea Tech’s team took 1st place by finishing the race in 8 minutes and 42 seconds. SKKU’s team gets to receive KRW 30,000,000 and a site visit opportunity to Japan. http://www.etnews.com/20190710000405
-
- 작성일 2019-07-24
- 조회수 5846
-
- Prof. Taeil KIM’s team develop radiant heat film for stretchable display
- Professor Taeil KIM’s research team (Dept. of Chemical Engineering) announced that they discovered a radiant heat film for the next generation stretchable display. The research team developed a filmthat can maintain high level of heat conduction by arraying boron nitride particles in micro pyramid structure. In order to extend the life of an electronic device, the heat must be controlled. The latest electronic devices create too much heat due to high performance, miniaturization and intensive integration. The heating problem has always been a problem hindering the development of the stretchable display. [Figure 1] the structure of the film (left), prototype (right) The circuit board of a stretchable device is made out of high molecular material with low thermal conduction. Due to the physical limitation of the polymer material, the radiant heat issue in a flexible device was hard to solve. The research team proved that by arraying the boron nitride nanoparticle of the film in a pyramid structure, the heat can rapidly transmit in vertical (1.15W/mK) and horizontal (11.05W/mK) direction. The pyramid structure not only improves the heat conductivity but also brings mechanic stabilization of the film to maintain conductivity even when there is an external force on the film. [Figure 2] Proved that desquamation does not occur even with external force but pulling the stretchable film by 50% Furthermore, it can be produced in large-scale because it only uses simple processes such as bar coating process. This research proved that the performance of electronic device can be improved with the efficient heat dissipation of MOSFET. [Figure 3] comparing the performance before and after using MOSDFET as the board for the film The lead author of the research paper Hyerin HONG said, “The result of this research can be applied for electronic devices.” Professor Taeil KIM said, “This research will also lead to application in micro LED and various mobile devices.” This research was conducted with the support of Nano convergence 2020 research team and it has been published on “Advanced Functional Materials” (IF 13.325). [Figure 4] Comparing the temperature of different films
-
- 작성일 2019-07-24
- 조회수 5777
-
- Prof. Sangwoo KIM’s team develops energy-free micro dust removing technology
- Professor Sangwoo KIM’s research team (Dept. of New Material Engineering) announced that they were able to create an energy-free, non-pressure micro dust collecting system using the 3D printer. With this achievement, we are now able to remove micro dust in our daily environment without using any sort of energy. Micro dusts are known to be the main source of pollution in the atmosphere and has been categorized as a top grade carcinogen. There has been many researches recently to develop technology to remove micro dust but most technology incurred severe pressure loss and non-recyclable wastes. Electric filter takes too much space and energy, and also creates ozone, which is harmful to the human body. The research team created a villus structure using the 3D printer and were successful in creating static electricity using the friction caused by wind. The static electricity can remove micro dust without pressure loss and with no energy source. [Figure 1] evaluation of the static electricity based filter system The electric-charged medium inside the material acts as the collector with the friction caused by the wind. It creates nearly zero pressure loss unlike the discharger method used by high voltage. The filter created by the research team can remove micro dusts in nanometer sizes and can greatly increase the energy efficiency of the circulation system. It can also be reused after simple cleaning; creating no waste. Prof. KIM said, “We developed a smart filter that overcame the limits of previous filters. The new filters can be used in clean rooms, air filters in electric vehicles, domestic ventilation systems and masks.” This research was conducted as a project sponsored by Ministry of Science, ICT and Future Planning, National Research Foundation of Korea and Korea Research Institute of Chemical Technology. It was published online in the world renowned journal “Nano Energy”. [Figure 2] friction static electricity based filter
-
- 작성일 2019-07-23
- 조회수 5904
-
- Prof. Jonghwan SEO & Jaedo NAM win a project from US Air Force Research Laboratory
- SKKU’s two professors (Prof. Junghwan SEO from Mechanical Engineering department, Prof. Jaedo NAM from Chemical Engineering department) each obtained an order from the US Air Force Research Laboratory (hereafter AFRL). The responsible program managers from the AFRL visited SKKU on June 27th to meet with Dean Junyoung LEE and two professors and discussed about the projects. The research team will visit the AFRL in Ohio, USA in late September for the development of the joint research project. Prof. SEO’s team proposed to develop a 3D printing material by using bamboo fibre. Bamboo is the fasted growing plant in the world and it is possible to harvest once every three years. It has been proven to be an excellent eco-friendly material for reinforcement. Prof. NAM’s team proposed to research on high polymerized composite materials that can cover electromagnetic waves. Electromagnetic wave-covering technology has become important with the rise of 5G communication technology such as auto-drive vehicles, AI, IoT and etc.
-
- 작성일 2019-07-23
- 조회수 5824
-
- Institute of Human Resource Education and AI Academy trains AI experts for Samsung SDS
- SKKU Institute of Human Resource Education will conduct a AI program for employees of Samsung SDS for four weeks in July. This program was developed to strengthen the basics and application of AI technology. Participants will learn machine learning, deep learning, computer vision and other AI technologies by solving problems. This program has renewed the previous program initiated in April to a learner-friendly curriculum by adding teaching assistants for application. Institute of Human Resource Education is promoting various AI open course along with the AI Academy and has established a designated lecture hall at the 6th floor of the Research and Business Cooperation Center. Two institutions will run AI related lecture for various industries such as finance and manufacturing. The Institute of Human Resource Education is also preparing for SKKU 4S Certificate Programs to meet the educational demand of the society. It is program designed for each corporate and convergence education. The program will provide a post-program follow-up by organizing the data from the result of the education. The institution will provide an all-in-one service for client companies by considering the goal of each clients.
-
- 작성일 2019-07-23
- 조회수 5731
-
- Highlighting “Student Success” - University is providing student customized support
- The era of “on-demand” has started. Supply is no longer the determinant and demand has become the most important factor. One can notice this change in the university as well. Universities are reflecting the keyword “student success” in their policies to respond to the needs of the students and improve the quality of university education. The term “student success” and relevant programs can be easily found in American universities. Most of the universities are currently running “student success center”. It provides general support for students to be successful in both academics and university life. SKKU was the first Korean university to open Student Success Center. SKKU is the only university that has a physical center to provide student success related support but other Korean universities are also applying the idea to support their students. Sanghoon BAE, the Director of SKKU Student Success Center emphasized that it is necessary for each university to clarify their own definition of “student success”. “They must discover their characteristics by using data. Universities should listen to the comments of companies that have hired the students and search for a proper model and objective for student success. Furthermore, this information should be shared with the administrative offices, departments and professors.” http://news.unn.net/news/articleView.html?idxno=214921
-
- 작성일 2019-07-23
- 조회수 5677
-
- Prof. Hyungkyun CHO’s team develop miniaturization and expansion of memory capacity
- Professor Hyungkyun CHO’s research team (New Materials Engineering) announced that they discovered a method to miniaturize and expand memory capacity by developing variable resistance memory device.This research was published online at the world renowned journal ACS Nano (IF=13.709). The research team was able to create amorphous oxide thin film using metal precursor and was successful in developing and proving the stability of ReRAM. In this process the team was able to newly prove the mechanism of memory devices. They also developed a device that can expand the degree of integration of the memory. The world is now entering the era of 5G and the role of memory is becoming greater than ever. The ReRAM is the memory of next generation that can replace the DRAM and NAND-FLASH. An ideal memory for semiconductors has uniformity, fast read/writing speed, random access, low cost, 3D expandability, nonvolatile, strong durability, stable in different temperature and provide multiple states. The research team used the electrochemical method to check the possibility of synthesizing devices. They argued that the electrochemical process can efficiently control OH- (hydroxyl ion) and the roughness of the surface. The density of OH- on the surface of electrode is an important factor determining the growth rate of thin film. They have successfully synthesized oxide thin later with nano particle and applied it in the memory device. [Figure 1] Evaluating performance of ReRAM: a. uniformity b. durability c. stability The ReRAM is known to increase conductivity by creating vacant oxygen inside the basic material. However, this research newly proved that it acts as a bridge that enables the transmission of electron. [Figure 2] Mimetic diagram of Nps-Cu2O formation and conductible bridge of ReRAM using transmission electron microscope
-
- 작성일 2019-07-23
- 조회수 5746
-
- SKKU 95th place in the 2019 QS World Rankings
- QS has recently announced the 2019 World Rankings. Sungkyunkwan University has taken 95th place in the world ranking. Korean universities have been rising in rankings in the recent years. The average ranking of top 10 Korean universities is 149th place (2015: 176th place). The top 7 Korean universities are as follows: SNU (37th), KAIST (41st), Korea University (83rd), POSTECH (87th), SKKU (95th),Yonsei University (104th) and Hanyang University (150th). http://news.chosun.com/site/data/html_dir/2019/06/19/2019061900278.html?utm_source=naver&utm_medium=original&utm_campaign=news
-
- 작성일 2019-07-23
- 조회수 5706