http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kim, Yukyung,Kim, Saerona,Noh, Seonmyeong,Kim, Semin,Park, Geunsu,Le, Thanh-Hai,Han, Hyunwoo,Kim, Yoong Ahm,Yoon, Hyeonseok Elsevier 2018 CHEMICAL ENGINEERING JOURNAL -LAUSANNE- Vol.353 No.-
<P><B>Abstract</B></P> <P>A non-covalent approach to prepare nanotube-containing gels was developed based on the physical gelation of two polymers, polyvinyl alcohol (PVA) and polyacrylonitrile (PAN), with different microphase behaviors in water/dimethyl sulfoxide (DMSO) mixture. Single-walled carbon nanotubes (SWNTs) were incorporated into the binary-polymer/binary-solvent system to alter the physical gelation behavior and, in turn, to achieve unique physicochemical characteristics of the resulting gels. SWNTs were wrapped with PVA, which extended the binary polymer system to a ternary polymer system consisting of PVA bound to SWNTs, free PVA, and PAN. It was observed that the SWNT/PVA/PAN ensembles gelled with appropriate amounts of water in DMSO and the gelation behavior was reversible. The amounts of water and SWNT were determined to be key parameters affecting the formation of the gels. The SWNT/PVA/PAN gels were successfully converted to carbonaceous gels via heat treatment in an inert atmosphere, which can be extended to several applications such as electrode materials. The macroporous carbonaceous gels were further functionalized via manganese deposition followed by potassium hydroxide activation, which yielded excellent cell performance in a neutral electrolyte with the energy density of 9.6–24.8 Wh kg<SUP>−1</SUP> and power density of 8.0–0.1 kW kg<SUP>−1</SUP>.</P> <P><B>Highlights</B></P> <P> <UL> <LI> The effect of co-nonsolvents on the microstructure of the gel was demonstrated. </LI> <LI> The SWNT-mediated physical gelation of binary polymer blends were reported. </LI> <LI> Physically cross-linked gels were converted to versatile electrode materials. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
운동선수의 경기력 향상을 위한 데이터 분석 시스템 설계
김세민(Semin Kim),이충호(Choong Ho Lee),홍기천(Ki-Cheon Hong),송정범(JeongBeom Song),유강수(Kangsoo You) 한국정보통신학회 2019 한국정보통신학회 종합학술대회 논문집 Vol.23 No.2
최근 체육 분야에서도 데이터를 활용하여 운동선수들의 진로와 연봉 등에 참고자료로 활용하는 경우가 많아졌으며, 스포츠 경기 중계에 보조자료로 널리 활용하고 있다. 또한 많은 운동선수들도 자신의 미래를 위하여 경기력 향상을 꾀하고 있으며 이를 위한 데이터 활용이 많이 요구되고 있다. 이에 본 연구에서는 운동선수들의 경기력 향상을 위하여 데이터 분석 시스템 개발하고자 개발 모형을 설계하였다. 개발된 모형에서는 각종 정형 데이터와 비정형 데이터를 수집하여 전처리 과정을 거친 후 각종 시각화 자료와 분석 보고서를 생성할 수 있도록 설계하였다. 본 연구를 통하여 선수들이 경기력 향상을 위하여 동기부여가 되고 경기에 임하는 자세를 새롭게 할 수 있을 것으로 기대할 수 있다. Recently, in the field of physical education, the data are often used as reference materials for careers and salaries of athletes, and they are widely used as supplementary materials for sports games. In addition, many athletes are trying to improve their performance for their future, and there is a great demand for data utilization. Therefore, this study designed a development model to develop a data analysis system for improving athlete"s performance. The developed model is designed to generate various visualization data and analysis report after preprocessing by collecting various structured and unstructured data. Through this study, it can be expected that athletes will be motivated to improve their performance and renew their attitude to play.
Design and Development of Software Model Textbooks with Novel Engineering for After-Schools
Semin Kim,Ki-Cheon Hong ASCONS 2018 INTERNATIONAL JOURNAL OF EMERGING MULTIDISCIPLINAR Vol.2 No.4
In Korea, software education is being strengthened. As a result, the polarization in software education is getting worse due to the private education craze. Fortunately, there is room in South Korea to narrow the gap through after-school schools. However, the ability of after-school instructors and the acquisition of information are also important, so this study developed model textbooks. Model textbooks have recently applied Nobel Engineering, which has been gaining attention in South Korea. Through the developed model textbooks, we hope to help with fun software education by applying it to the school site after school.
A Plan to Improve Learners" Resilience in Learning using Online Programming Tools
Semin Kim,Seonghee Woo,Kangsoo You 한국정보통신학회 2021 2016 INTERNATIONAL CONFERENCE Vol.12 No.1
Due to the impact of COVID-19, schools at each level are offering online courses. The subject that faces the greatest difficulty is the practical subject. However, computer programming courses have an online programming tool, so the situation is better. Therefore, this study attempts to propose a method to improve resilience in learning using online programming tools. Models for this include the use of various online tools and analysis of various variables.