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- 저자 : 정구영(Jeong Gu Young) (검색결과 29 건)
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레퍼런스 ST 셋과 다항식 근사를 이용한 ST 형상 분류 알고리즘
정구영,유기호,Jeong, Gu-Young,Yu, Kee-Ho 대한의용생체공학회 2007 의공학회지 Vol.28 No.5
The morphological change of ECG is the important diagnostic parameter to finding the malfunction of a heart. Generally ST segment deviation is concerned with myocardial abnormality. The aim of this study is to detect the change of ST in shape using a polynomial approximation method and the reference ST type. The developed algorithm consists of feature point detection, ST level detection and ST shape classification. The detection of QRS complex is accomplished using it's the morphological characteristics such as the steep slope and high amplitude. The developed algorithm detects the ST level change, and then classifies the ST shape type using the polynomial approximation. The algorithm finds the least squares curve for the data between S wave and T wave in ECG. This curve is used for the classification of the ST shapes. ST type is classified by comparing the slopes of the specified points between the reference ST set and the least square curve. Through the result from the developed algorithm, we can know when the ST level change occurs and what the ST shape type is.
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정구영(Jeong Gu Young),고문수(Ko Moon Soo),이재용(Lee Jae Yong) 한국스포츠교육학회 2003 한국스포츠교육학회지 Vol.10 No.2
본 연구는 초등학교 체육수업에서 협동학습이 학생들의 참여와 성취에 미치는 영향을 규명하는데 목적이 있다. 이를 위해 수도권에 소재하고 있는 6학년 1학급(남21명, 여21명, 계42명)을 선정하고, 농구 단원을 적용하여 학생들이 선수, 주장, 심판, 그리고 성적기록자 역할을 경험하도록 하였다. 기간은 2개월 동안, 총 13차시의 농구형 게임 협동학습을 시행하였다. 협동학습 구조로는 Grineski(1996)의 학습 집단(Learning Teams)을 사용하였다. 학습 지도는 5인 1모둠으로 편성하고, 모둠 단위로 패스, 드리볼, 슛 기능을 연습하고, 모둠별로 간이 게임을 통해서 주어진 과제를 수행하고 기능을 확대·세련시키는 방법을 택하였다. 질적 연구 자료를 얻기 위한 자료 수집은 수업관찰자 질문지, 그리고 인터뷰로 학생 인식과 참여 태도, 수업관찰을 통한 교과인식, 농구 기능의 사전·사후 검사로 운동기능의 향상 정도를 분석하여 다음과 같은 결과를 얻었다. 첫째, 협동학습 체제로 구성된 체육수업에 대해서 학생들은 모둠원들과 즐겁게 활동하는 가운데 서로 배려하고 도우며 긍정적인 상호작용을 하였다. 둘째, 교사는 학생들이 희망하는 수업 형태를 파악하여 보다 학생들의 성취 수준을 높여주는 수업을 위해 노력하는 계기가 되었다. 셋째, 학생들은 선수, 주장, 심판, 성적기록자 역할을 경험한 후에 공동의 목적을 달성하기 위해 자신의 역할에 충실하였다. 넷째, 모든 학생에게서 운동기능의 향상이 관찰되었다. 특히 중위 그룹 학생들의 기능 향상이 뚜렷하였다. The purpose of this study was to identify the effects of cooperative learning on skill development and attitude of students in elementary physical education classes. Forty-two 6th-graders(21 boys, and 21 girls) were selected from an elementary school located in a metropolitan area. The teacher used Learning Teams (Grineski, 1996) as a cooperative learning structure. Five students in each team were assigned to various roles such as players, encouragers, captains, referees and recorders. A total of 13 cooperative learning classes using basketball lead-up games were performed during 2 months. A teacher diary was kept to obtain the teacher`s perceptions of cooperative learning. Student perceptions were obtained using questionnaires and interviews. Skill tests were given to students to determine skill improvement. Video tapes were observed to determine if attitude improvement occurred. First, in elementary physical education classes using cooperative learning structure, students showed positive interaction such as helping each other and caring for others. Second, teachers could identify students` preference in physical education classes and could behave accordingly to improve their skills and attitudes. Third, they appeared to devote themselves to achieve the goals of their teams after having experienced the roles of player, captains, referees and scorers. Fourth, almost all of the students showed improvements in passing, dribbling, and shooting skills, especially those of the average students.
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정구영(Gu-Young Jeong),윤명종(Myoung-Jong Yoon),유기호(Kee-Ho Yu) 제어로봇시스템학회 2009 제어·로봇·시스템학회 논문지 Vol.15 No.4
ECG is used on purpose to keep good health or monitor cardiac function of aged person as well as on purpose to diagnose the disease of heart patients. The ambulatory ECG monitoring system under guarantee of safety and accuracy is very efficient to prevent the progress of heart disease and sudden death. These systems can detect the temporary change of ECG that is very significant to diagnose heart disease such as myocardial ischemia, arrhythmia and cardiac infarction. In this paper, we describe the ECG signal analysis algorithm and measurement device for ECG monitoring. The authors designed a small-size portable ECG device that consisted of instrumentation amplifier, micro-controller, filter and RF module. The device measures ECG with four electrodes on the body and detects QRS complex and ST level change in realtime. Also it transmits the measured signals to the personal computer. The developed software for ECG analysis in personal computer has the function to detect the feature points and ST level changes.
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자연 친화적 요소를 적용한 청소년 수련관 실내 계획 연구
정구영(Jeong, Gu-young),김동훈(Kim, Dong-hoon) 한국실내디자인학회 2018 한국실내디자인학회 학술대회논문집 Vol.20 No.1
The happiness index of young people in Korea is at the bottom of the OECD member countries, The happiness index was higher than the OECD average. In order to revitalize such activities, the role of teachers who take the direction of students to take their abilities is also important, but the role of youth facilities is also becoming larger. The creative thinking required for young people to lead the era of the Fourth Industrial Revolution has been felt to be far from existing hard-core youth training facilities. The purpose of this study is to provide the space required for reconstruction or reconstruction of the aged youth training center in the future as a space with creative space production and vigorous vitality. The purpose is to provide basic data for the application of natural elements to the space as a necessary element. Therefore, it is expected that youths will have psychological stability and creativity through the application of youth training facilities, as well as materials categorized as elements for designing nature-friendly elements that have been used in existing prior studies In the future, we will continue to offer sustainable research proposals with elements that are naturally superior and continue to present the direction of the interior design for youth training facilities.
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정구영(Gu-Young Jeong),유기호(Kee-Ho Yu),권대규(Dae-Kyu Kwon) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
The ambulatory ECG monitoring can detect the temporary change of ECG that is very significant to diagnose heart disease such as myocardial ischemia, arrhythmia and cardiac infarction. In this paper, we describe the ECG signal analysis algorithm and measurement device for ECG monitoring. The authors designed a small-size portable ECG device that consisted of instrumentation amplifier, micro-controller, filter and RF module. The device measures ECG with four electrodes on the body and detects QRS complex and ST level change in real-time. Also it transmits the measured signal to the personal computer. The developed software for ECG analysis in personal computer has the function to detect the feature points.
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게임기반의 시각 피드백 훈련이 자세균형 조절에 미치는 영향
이정원(Jeong-Won Yi),유미(Mi Yu),정구영(Gu-Young Jeong),이낙범(Nak-Bum Lee),권대규(Tae-Kyu Kwon) 한국콘텐츠학회 2012 한국콘텐츠학회논문지 Vol.12 No.3
본 연구에서는 자세균형 훈련 효과를 향상시킬 수 있는 게임 콘텐츠를 적용한 시각 피드백 자세균형 훈련 프로그램을 이용하여 정상 20대 성인을 대상으로 자세균형 조절 능력의 향상에 관한 유효성을 검증하고자 한다. 힘판 기반 자세균형 훈련 장치를 이용하여 23명의 피험자들이 일주일에 3일, 하루에 15분씩 4주간의 자세균형 훈련을 받았다. 게임기반의 시각 피드백 자세균형 훈련에 대한 평가는 Balance SD(Biodex, medicalscience Inc., USA)의 자세 균형 평가를 통하여 자세안정성과 자세한계성을 분석하였으며, 실험자의 자세균형 능력의 증진을 통한 유효성을 검증하였다. 그 결과 자세안정성과 자세한계성 모두 훈련 전후로 유의한 차이가 있었음을 확인하였다(p<0.05). 이번 연구 결과는 게임기반의 시각 피드백 자세균형 훈련이 자세균형 능력 향상을 위한 운동에 적용될 수 있음을 의미하며, 향후 다양한 자세균형 훈련의 프로그램 종류, 강도 및 각 질환별 최적 콘텐츠 개발에 대한 정량적인 데이터 수집 및 분석연구가 필요하다. In this study, we analyzed the effects of game-based visual feedback training on postural balance control in young adults. We provided postural balance training for four weeks in fifth minute a day and three days a week using training system of postural balance based forceplate. We evaluated the ability of postural balance using balance SD(Biodex, medicalscience Inc., USA) for the validation of game contents based visual feedback training program. The results showed that postural stability and limits of stability were improved significantly before and after the training(p<0.05). Our study indicates that postural balance training of visual feedback based game could be adapted for improving postural balance. Also, for application of this game-based visual feedback training in older adults, we could develope of various game contents for disease types and conduct quantitative analysis and data collection of postural balance in the aged.
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