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K리그 축구 경기에서 나타난 상황 요인 별 주요 공격 분석인자의 상대성 분석
김종원 ( Kim¸ Jongwon ),최형준 ( Choi¸ Hyongjun ) 한국체육학회 2021 한국체육학회지 Vol.60 No.1
본 연구는 2020 K리그 경기에서 발생한 주요 공격 인자들을 수집하고 이를 상황 요인(경기 장소, 상대팀 수준, 최근 팀 경기력, 최근 상대팀 경기력) 별 상대성 분석을 하고자 하였다. 본 연구에서는 2020 K리그 모든 팀들의 전 경기(스플릿 후 경기 제외)를 대상으로 하였으며, 연구의 대상이 된 경기 수는 132경기였다. 자료 수집을 위해 한국프로축구연맹에서 제공하는 ‘데이터포탈’의 공식 자료를 사용하였고, 자료를 정리하기 위해 1차적으로 Microsoft Office Excel 2007을 이용하였다. 통계 분석은 IBM SPSS 25.0을 이용하였으며, 정규성 분포를 이루지 않아 비모수 통계 기법인 Mann-Whitney U 검정법과 Kruskal-Wallis H 검정법을 이용하여 평균 차이를 비교 분석하였다. 본 연구에서 나타난 결과는 첫째, K리그 팀들은 홈에서 경기를 할 때가 원정에서 경기를 할 때보다 더 높은 볼 점유율을 기록했고(α<.05), 둘째, 강팀을 상대로 경기할 때가 중팀과 약팀을 상대로 할 때보다 더 적은 슛, 유효 슛, 패스, 전진 패스와 낮은 볼 점유율을 기록했으며(α<.05), 셋째, 팀의 최근 경기력이 좋을 때와 상대팀의 경기력이 좋지 않을 때 더 많은 패스, 전진 패스와 높은 볼 점유율을 기록했다(α<.05). The aim of this study was to identify the effect of situational variables e.g. match venue, opposition quality, current form, current opposition’s form on key attacking performance indicators from 2020 Korea Football League. All match(n=132) excepted for split matches were used for analysis and the data were provided by Korea Professional Football League(data.kleague.com). Microsoft Office Excel 2007 was used to collect data and the data were analysed in IBM SPSS 25.0 to determine differences between independent variables. Normality tests were firstly conducted and Mann-Whitney U test and Kruskal-Wallis H test was conducted as a non-parametric statistics method. The results showed that ball possessions were significantly different between home and away teams whilst all key attacking performance indicators were significantly different according to different quality of team. Also, there were significant differences in passes, forward passes and ball possessions among current team forms and opposition team forms.
김종원(Kim, Jongwon),최현석(Choi, Hyunseok) 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.11
In recent times, earthquakes of various magnitudes have been occurring frequently within the country, occasionally resulting in significant damage to both human lives and the power infrastructure. Particularly, Gas Insulated Switchgear (GIS), one of the essential components ensuring a stable power supply in the domestic electrical grid, demands a high level of earthquake safety. GIS consists of intricate devices and structural components, and its scale is quite substantial. Moreover, electrical facilities are subjected to diverse design loads during operation, necessitating the assurance of structural integrity against these overall loads. Safety assessments for seismic performance are accurate and intuitive when conducting direct tests that meet these conditions. However, in the case of Gas Insulated Switchgear, direct testing is not feasible due to cost and test facility constraints. Therefore, this paper evaluates the structural safety of GIS based on relevant standards using dynamic analysis methods, including response spectrum analysis and static analysis. The assessment of a 170kV GIS indicates that key components in critical locations meet the seismic performance requirements, and the component experiencing the maximum stress also has a safety margin of more than 10%.
자기연구를 통한 교사학습공동체의 리더 역할 성찰 - 학교 안 과학학습공동체 사례를 중심으로 -
김종원(Kim, Jongwon) 학습자중심교과교육학회 2016 학습자중심교과교육연구 Vol.16 No.5
본 연구는 자기연구로서 과학교과 중심의 학교 안 교사학습공동체에서 활동한 경 험을 토대로 교사학습공동체에서 리더로서 수행한 역할을 성찰하고, 교사학습공동 체 리더의 역할에 관한 시사점을 도출하는 것을 목적으로 한다. 교사학습공동체에 참여하면서 녹음한 대화 내용을 전사한 텍스트 문서를 주된 분석의 대상으로 삼았으며, 코딩과 범주화를 통해 주제를 구성하였다. 그리고 이를 중심으로 연구자의 경험을 내러티브 형식의 글쓰기로 기술하고, 교사리더십의 속성에 비추어 성찰하였다. 분석 결과, 리더 역할에 관한 88개의 의미 단위를 추출하였고, 유사한 것을 묶어 33개의 하위범주와 10개의 상위 범주를 추출하였다. 학습공동체 리더의 역할은 ‘공동체의 비전과 목표 설정하기’, ‘개방적인 소통을 통해 공동체성 형성하기’, ‘구성원들 과 조율하며 공동체 운영하기’, ‘문제 해결을 통해 나와 구성원의 성장 촉진하기’, ‘역할 분담으로 리더십 분산시키기’의 5가지로 구성되었다. 이 연구를 통해 교사학습공 동체에서 중요하게 고려되어야 할 사항, 학습공동체의 초기 단계와 성숙 단계에서의 리더의 역할, 분산적 리더십의 발휘, 외부와의 협력에 관한 시사점을 도출할 수 있었다. This study is a self-study which aims to reflect on role performance as a PLC leader and to draw some implications regarding roles of a PLC leader. All conversation in the PLC activity recorded, transcribed was subject to data analyses. Its themes were grounded on its coding and categorization scheme. With its themes, this researcher described her experiences as a narrative form and reflected her experiences in the light of attributes of teacher leadership within a PLC. A a result, there were 88 concepts drawn from the process of opening coding. 88 concepts were categorized into 33 subcategories and 10 categories. There were five major roles of a PLC leader such as establishing a shared vision and goal for a PLC, building a communal value through open-minded communication, running a PLC by negotiating diverse issues with its members, promoting the development and growth of its members and a researcher herself by actively involving in a process of problem-solving, and providing distributed leadership by its divisions of labor. In conclusion, this study helped us to draw important implications and considerations in a PLC activity which were roles of a leader both in an starter stage and in a mature stage, providing distributed leadership, and collaboration with external institutions or organizations.
김종원(Jongwon Kim),조정호(Jeongho Cho) 한국정보기술학회 2018 한국정보기술학회논문지 Vol.16 No.3
Aircraft fuel systems are one of the core electronic and mechanical systems of aircraft and the reliability of the fuel system for safe flight is of paramount importance. Despite the use of advanced technology and equipment, however, modern aircraft fuel systems still have vulnerabilities due to simple faults or crew carelessness. In this paper, we proposed an integrity monitoring method that uses an aircraft fuel consumption prediction algorithm to prevent accidents caused by aircraft fuel system errors that require high reliability and accuracy. The proposed aircraft fuel consumption prediction algorithm trained by the Levenberg-Marquardt learning method could confirm 20~30% higher robustness and superiority against the external environmental noise compared with the conventional aircraft fuel consumption model in the simulation using the B747-100 aircraft data.