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정주대학(Residential College) 여가프로그램 참여와 웰니스의 관계
이상덕(Sang Duk Lee),임영삼(Young Sam Lim) 한국여가레크리에이션학회 2012 한국여가레크리에이션학회지 Vol.36 No.2
The purpose of this study is to investigated wellness of leisure activity participants among residential college students. The number of participants for this study is 370 from J University in Chungcheongbuk-do and H University in Kangwon-do. The participants were selected from leisure activity participants residing in residential colleges. After target population was selected, one of the non-probability methods, purposive sampling method was applied. Questionnaires for this study were distributed to 370 students of the J University and H University and 364 questionnaires were collected and analyzed using SPSS 14.0. As a result, the following results were found. First, statistically significant relationship was found between participants` characters (sex, grade, period of stay, and health degree) and physical health and social health. Second, in the relationship between leisure program participants and wellness, the following sections were found to be statistically significant; physical health (sex, grade, period of stay, number of days to participate in leisure, length of time spent for leisure, and health degree), social health (sex, health degree), intellectual health (sex), psychological health (number of days to participate in leisure), emotional health (number of days to participate in leisure).
기숙형 대학생이 인지하는 여가유능감과 생활만족 및 여가이득과의 구조적 관계
이상덕(Sang Duk Lee),임영삼(Young Sam Lim) 한국여가레크리에이션학회 2011 한국여가레크리에이션학회지 Vol.35 No.4
The purpose of this study was the investigation of the structural relationship between leisure competence, life satisfaction, and leisure benefit. The objects in this research were 300 university students who were from a resident university at Chungcheongbuk-do and Gangwon-do As a sampling method, we used purpose sampling method which is one of the non-probability sampling method. As a result of the survey, 291 of 300 questionnaires were acquired and the data were analyzed using PASW Ver. 18.0 and Amos 7.0. The results of this research can be summarized as followings. Firstly, the physical competence which is a sub-factor of leisure competence effects on life satisfaction. However, cognitive competence and social competence do not effect on the life satisfaction. Secondly, we found that the life satisfaction effects on social benefit, psychological benefit, personal satisfaction, and leisure benefit.
아스클레피오스는 아테네와 에피다우로스의 국제관계를 위한 신인가?
이상덕 ( Lee Sangduk ) 한국서양고대역사문화학회 2021 서양고대사연구 Vol.62 No.-
전통적인 아스클레피오스 연구에서는 아스클레피오스를 개인을 위한 치유의 신으로 여겼다. 그러나 최근 학계에서는 국가가 공적 목적을 위해 도입한 신으로 생각한다. 그는 기원전 430년에 아테네를 강타한 전염병을 치료하기 위해 아테네에 소개된 것으로 생각된다. 더욱이 펠로폰네소스 전쟁 중 정치적인 복잡성으로 인해 아스클레피오스는 제국주의적으로 평가하든 평화주의적으로 평가하든 아테네와 에피다우로스 간의 관계를 유지하는 데 핵심 인물이 되었다. 미첼-보야스크는 아스클레피오스가 디오니소스 및 아테네 드라마와 밀접한 관련이 있다는 이론을 제기했다. 그는 그리스 비극을 분석하여 비극이 질병, 고통 및 치유의 개념을 전달한다고 주장했다. 치유는 비극의 은유를 통해 암시되었다. 에우리피데스는 특히 은유를 사용하여 현실을 표현했다. 히폴리토스는 자신의 문제를 해결하기 위해 에피다우로스로 가길 원했지만 다다를 수 없었다. 기원전 420년 에피다우로스의 아스클레피오스가 아테네에 소개된 후 아스클레피오스를 아테네와 밀접한 연관이 있는 인물로 재탄생 시키기 위한 노력이 필요했고, 필자는 이를 달성하고자 한 것이 에우리피데스의 <이온>이라고 생각한다. 이 연극은 고통과 치유의 개념을 전달할 뿐만 아니라 이온을 통해 아스클레피오스의 이미지를 만든다. 에우리피데스의 이온은 네 가지 면에서 아스클레피오스와 유사하다. 1. 그의 출생 이야기, 그의 아버지가 아폴론인 것, 2. 외국인으로 아테네에 입국해야 한다는 것, 3. 뱀과 관련이 있다는 것, 4. 아테네에 결국 입성한다는 것. 에우리피데스는 아스클레피오스를 아테네 조상 영웅인 이온의 형제로 만듦으로써 아테네와 에피다우로스 간의 관계를 공고하게 했던 것이다. Asklepios was considered to be a god of healing for private individuals. In recent scholarship, however, he is considered to be a god that the state wanted for public purposes. He is thought to have been introduced to Athens to cure the plague that hit the city in 430 BCE. Moreover, the political complexity during the Peloponnesian Wars made Asklepios a key figure in maintaining the relationship between Athens and Epidauros, be it imperialist or pacifist in nature. The Telemachos Monument or the Epidauria which took place during the Great Dionysia were taken as evidence of and provide an explanation for the appropriation of the cult of Asklepios in the city of Athens. Mitchell-Boyask raised a plausible theory that Asklepios was closely related to Dionysos and the Athenian drama. He analysed available dramas to show that they convey the notion of disease, pain, ailment and healing. The healing process was implied through metaphor in tragedies. Euripides in particular used metaphor to represent the reality. In Euripides’ play, Hippolytos headed to Epidauros to solve his problem but was hindered. Mitchell-Boyask did not include Euripides’ Ion as one of his examples, but here I argue that Ion is a perfect parallel to Asklepios. The play not only conveys the notion of pain and healing, but also illustrates the image of Asklepios through Ion - he, as a foreigner entering the Athenian community. Euripides’ Ion resembles Asklepios in four ways mainly: 1. His birth story, his father being Apollo, 2. He needs to enter Athens as a foreigner, 3. He is related to serpents, 4. He is successfully accepted by the Athenians in the end. Euripides, by creating an image of Asklepios being a brother to Ion welcomed the god that would heal the Athenian community.
몬테카를로 기반 재귀최소자승법에 의한 시스템 인식 실험 연구
이상덕(Sang-Deok Lee),정슬(Seul Jung) 대한전기학회 2018 전기학회논문지 Vol.67 No.2
In this paper, a Monte Carlo-based Recursive Least Square(MC-RLS) method is presented to directly identify the inverse model of the dynamical system. Although a RLS method has been used for the identification based on the deterministic data in the closed loop controlled form, it would be better for RLS to identify the model with random data. In addition, the inverse model obtained by inverting the identified forward model may not work properly. Therefore, MC-RLS can be used for the inverse model identification without proceeding a numerical inversion of an identified forward model. The performance of the proposed method is verified through experimental studies on a control moment gyroscope.
동적 시스템의 각가속도 추정을 위한 데이터 기반 상태관측기 설계와 필터링 기법
이상덕(Sang-Deok Lee),정슬(Seul Jung) 대한전기학회 2019 전기학회논문지 Vol.68 No.2
In this paper, we propose a data-driven state observer design and a filtering technique for the estimation of the angular acceleration information of dynamic systems. Angular acceleration information is quite useful for the control of vehicles, mobile robots, and joint systems. When the accurate angular acceleration state is estimated, we can construct a joint independent control scheme neglecting the dynamically coupled effects between the joints or links. An angular acceleration state observer based on the data of the measurable encoder is designed. However, such a data-driven state observer may show the peaking effect when the data are not enough or when the sampling rates are not fast. A simple first-order complementary filter is proposed to deal with the peaking effect problem. The proposed method is verified by the simulation and experimental studies.