A5027041723- Educational Systems and Policies
- Education and Learning Interventions
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Diverse Approaches in Healthcare and Education Studies
- Educational Research and Pedagogy
- Education, Safety, and Science Studies
- Magnetic confinement fusion research
- Healthcare Education and Workforce Issues
- Higher Education Governance and Development
- Psychosocial Factors Impacting Youth
- Global Educational Reforms and Inequalities
- Teacher Education and Leadership Studies
- Particle Accelerators and Free-Electron Lasers
- Technology and Data Analysis
- Global Education and Multiculturalism
- Hydrology and Watershed Management Studies
- Education Systems and Policy
- Artificial Intelligence in Healthcare
- Diabetes, Cardiovascular Risks, and Lipoproteins
- Precipitation Measurement and Analysis
- Face and Expression Recognition
- Research studies in Vietnam
- Medical Research and Treatments
- HVDC Systems and Fault Protection
Dankook University
2021-2024
Korea University
2001-2021
Samsung (South Korea)
2017
Pohang Iron and Steel (South Korea)
2000-2014
Inha University
2014
The Korea Superconducting Tokamak Advanced Research (KSTAR) project is the major effort of national fusion programme Republic Korea. Its aim to develop a steady state capable advanced superconducting tokamak establish scientific and technological basis for an attractive reactor. parameters are: radius 1.8 m, minor 0.5 toroidal field 3.5 T plasma current 2 MA, with strongly shaped cross-section double null divertor. initial pulse length provided by poloidal magnet system 20 s, but can be...
A new multiple-loop design technique for high-performance low-dropout (LDO) regulator designs has been proposed and successfully implemented in many commercial products portable smart phone tablet PC applications. The LDO is composed of five loops that allows designers to obtain a good tradeoff between quiescent current other performances, such as undershoot, overshoot, so on. total one bandgap reference 38 LDOs (including n-type p-type LDOs, which will be named NLDO PLDO, respectively) were...
Metabolic syndrome (MetS) is a chronic disease caused by obesity, high blood pressure, sugar, and dyslipidemia may lead to cardiovascular or type 2 diabetes. Therefore, the detection prevention of MetS at an early stage are imperative. Individuals can detect manage it effectively if they easily monitor their health status in daily lives. In this study, predictive model for was developed utilizing solely noninvasive information, thereby facilitating its practical application real-world...
The Korea Superconducting Tokamak Advanced Research (KSTAR) device is an advanced superconducting tokamak to establish scientific and technological bases for attractive fusion reactor [1]. In-vessel vertical coil (IVC) power supply (PS) developed stability shape control of KSTAR plasma. IVC PS in based on a single-phase full-bridge inverter. output voltage current are dc ±1 kV ±10 kA, respectively. Insulated gate bipolar transistor used as switching maximal 5 kHz frequency adopted meet the...
A technology based on thyristors will be used to manufacture the super-conducting coil AC/DC converters because of low ratio cost over installed power compared a design GTO or similar technology. But phase-controlled converter suffers from fundamental disadvantage. They inject current harmonics into input ac mains due their nonlinear characteristics, thereby distort supply voltage waveform, and demand reactive associated system at retarded angles. To overcome this disadvantage, in case two...
One of the limitations currently-used metabolic syndrome (MetS) risk calculations is that they often depend on sample characteristics. To address this, we introduced a novel sample-independent quantification method called ‘triangular areal similarity’ (TAS) employs three-axis radar charts constructed from five MetS factors in order to assess similarity between standard diagnostic thresholds and individual patient measurements. The was evaluated using large datasets Korean ( n = 72,332)...
본 연구는 한국 교육행정학 분야 질적 연구의 질 평가를 목적으로 한다. 이를 위해 먼저, 연구 평가 관련 선행연구를 고찰하고, 이어 영역과 준거를 구안하였다. 다음으로 자료 수집 및 분석 대상 학회지를 『교육행정학연구』로 선정하고, 2023년 41권 2호까지 발행된 159편의 활용 논문에 대한 실시하였다. 평가의 주요 결과를 정리하면 다음과 같다. ① 서론의 결과, 각 준거의 평균값은 2점 만점에 1.18~1.43점으로 비교적 높게 나타났다. ② 설계 방법의 준거 가운데 '특정 패러다임 또는 질적연구 유형에 근거한 이유 제시', '연구자의 편견이 개입될 수 있는 면담자 기본 정보 자기성찰', '연구자와 참여자의 관계 설정 내용 '자료 포화 결정 기준과 방법 '연구 윤리 확보 과정 중과 후의 필드 노트 작성 유무 수집에 활용한 도구와 기기 설명' 등 7개 준거는 1점 미만의 평균값을 보여주었다. ③ 결과의 기반 결과 제시'의 경우 1.91인데 비해, '이론 모형에 해석'...
본 연구는 비판적 담론분석의 사회과학적 함의를 바탕으로, 이 분석이 교육행정 및 정책연구에 미치는 영향을 고찰하고, 그 적용 가능성과 제약을 탐색하는 것을 목적으로 하였다. 이를 위해 가능성을 주제 설정, 방법론적 접근, 현장 실천의 세 가지 차원에서 논구하였다. 설정 차원에서는 담론분석이 교육행정과 정책 현상을 비판적으로 탐구하며 권력 구조와 사회적 불평등을 심층적으로 분석할 수 있는 제시하였다. 접근 다양한 학문적 배경을 통합하여 연구에서 유용한 분석 도구로서의 강조하였다. 실천 교육 현장에서 나타나는 해소하고, 보다 민주적이고 공정한 교육행정을 실현하는 데 기여할 있음을 논의하였다. 이러한 결과와 더불어, 설정의 주관성, 접근의 복잡성, 그리고 실천에서의 어려움이라는 제약도 함께 마지막으로, 연구 결과를 바탕으로 이론적 발전과 현장에서의 실질적인 적용을 위한 지속적인 연구와 협력을 제언하였다.
<title>Abstract</title> Background. High-dimensional datasets with low sample sizes (HDLSS) are pivotal in the fields of biology and bioinformatics. One core objective HDLSS is to select most informative features discarding redundant or irrelevant features. This particularly crucial bioinformatics, where accurate feature (gene) selection can lead breakthroughs drug development provide insights into disease diagnostics. Despite its importance, identifying optimal still a significant challenge...
High-dimensional datasets with low sample sizes (HDLSS) are pivotal in the fields of biology and bioinformatics. One core objective HDLSS is to select most informative features discarding redundant or irrelevant features. This particularly crucial bioinformatics, where accurate feature (gene) selection can lead breakthroughs drug development provide insights into disease diagnostics. Despite its importance, identifying optimal still a significant challenge HDLSS. To address this challenge,...
A 120 kV/70 high voltage switching system has been installed at Korea Atomic Energy Research Institute in Taejon to supply power Koma Superconducting Tokamak Advanced (KSTAR) Neutral Beam Injection (NBI) system. The NBI requires fast cutoff of the for protection grid when an arc is detected and turn-on sustaining beam current Therefore switch detection circuit are important parts systems there much need solid-state-switches a broad area pulse applications. To get switch, series-connection...