Noise Evaluation Considering the Uncertainty Variation According to Frequency

Lee Chulwon(이철원),Koo SeungJun(구승준),Kong Young Mo(공영모) 한국소음진동공학회 2014 한국소음진동공학회 학술대회논문집 Vol.2014 No.4

In the evaluation of measured noise data, tolerance shall be decided based on the uncertainty. The uncertainty has frequency variations due to the different standard deviations at each frequency. Therefore, tolerance shall be differently decided for each frequency with the same confidence probability. In the report, the evaluation method considering the frequency variation of uncertainty will be introduced. From the approach, considering the actual noise distribution characteristics of the ships, the tolerance shall be decided for each frequency with the same probability, but the overall averaged value shall be kept to the value designated in each notation.

신 중국 성립(1949-1954)시기 외교정책에 관한 연구 : 이데올로기의 영향을 중심으로

이철원 ( Lee Chulwon ) 한국외국어대학교 중국연구소 2018 中國硏究 Vol.75 No.-

The year 1949 proved pivotal in changing the dynamics of post-World War II international relations. In October 1949, the People’s Republic of China(PRC) replaced after the Chinese Communists won a nationwide victory in the civil war. Communist China, comprising a quarter of the world’s population, had inevitably extended the Cold War to East Asia. The PRC’s foreign policy during the Cold War went through several distinctive stages. October 1949, PRC, the Chinese Communist leader Mao Zedong announced that New China would support the Soviet Union in international affairs. U.S. settled on a policy of non-recognition of the PRC. The Chinese and Soviet leaders signed the Sino-Soviet Treaty of Friendship, Alliance, and Mutual Assistance on February 14, 1950. The alliance was mainly a military agreement, which committed the two sides to come to each other’s aid if either were attacked by Japanor the United States. The outbreak of the Korean War in June 1950 disrupted any possible stabilization of the Sino-American relations. The PRC and the United States would be locked into a deadly three-year war in the Korean peninsula from June 1950 to July 1953. After China entered the Korean War in October 1950, the U.S.would perceive the PRC as a major threat to its key interest in Asia, and to the security of Japan. Blocking the PRC’s membership in the UN, and further isolating the PRC politically. The PRC’s hostility toward the U.S.and Washington’s reciprocation intensified the Cold War in the region. The Chinese quarreled with the Soviets over the issue of de-Stalinization, the Soviet proposal of building a joint long-wave radio station and nuclear submarine fleet in China, differing interpretations of Marxism-Leninism, Khrushchev’s attempt to reach an accommodation with the West, and the USSR’s refusal to support China during its conflict with India in the second half of 1959 and early 1960. In July 1960, Moscow announced the abrupt removal of Soviet advisers and technical personnel from China. By the early 1960s, the Sino-Soviet dispute spread from ideology to state-to-state relations. Tensions rose along the Sino-Soviet border. The Sino-Soviet alliance collapsed.

검사 체적법을 이용한 유압식 Top-Bracing 동특성 연구

이철원(Chulwon Lee),김진현(Jinhyeon Kim),이동경(Dokyung Lee),정태석(Taeseok Jeong) 한국소음진동공학회 2012 한국소음진동공학회 학술대회논문집 Vol.2012 No.10

대형 FPSO의 소음해석 및 방음설계

이철원(Lee Chulwon),김노성(Kim Nhoseong),허주호(Heo Jooho) 한국소음진동공학회 2008 한국소음진동공학회 학술대회논문집 Vol.2008 No.11

Screw Compressor의 음향 공진 사례 소개 및 현상 규명

이철원(Lee Chulwon),김노성(Kim Nhoseong),허주호(Heo Jooho) 한국소음진동공학회 2008 한국소음진동공학회 학술대회논문집 Vol.2008 No.11

공유자전거의 여가 목적적 사용의도에 대한 분석: UTAUT2 모형을 적용하여

이민석(Lee, Minseok),김민정(Kim, Minjeong),이철원(Lee, Chulwon) 한국여가레크리에이션학회 2021 한국여가레크리에이션학회지 Vol.45 No.3

This study was conducted by applying the UTAUT2 model to analyze the intention to use shared bicycles for leisure purposes for shared bicycle users. Data was sampled online and offline using purposive selection, and 476 questionnaires were used after data cleaning. SPSS 24 and AMOS 22 were used as statistical processing programs. Among the components of UTAUT2, it was found that performance expectancy, effort expectancy, facilitating conditions, price value, hedonic motivation, and habit influence intention to use. Social influence did not affect intention to use, and facilitating conditions did not affect Leisure purpose usage. Finally, it was confirmed that intention to use affects leisure purpose usage. These results proved that performance expectancy, effort expectancy, facilitating conditions, price value, hedonic motivation, and habit are the main factors in using shared bicycles. In addition, it is significant that it has proved that habit is the factor that has the greatest influence on allowing shared bicycles to be used for leisure purposes.

메타분석을 통한 여가제약협상의 효과성 분석

한얼로(Urllo Han),이철원(Chulwon Lee),배정섭(Jungsup Bae) 한국여가레크리에이션학회 2018 한국여가레크리에이션학회지 Vol.42 No.3

The purpose of this study is to investigate empirically the effect of leisure constraint negotiation through meta–analysis. For the analysis of data, 18 studies using leisure constraint negotiation were selected and analyzed through CMA2 (Comprehensive Meta Analysis). The results of the study are as follows. First, the total effect size of leisure bargaining negotiation was measured at a high level. In the sub-factor, strength adjustment showed the highest correlation effect size, and energy charge, aspiration, time, companion, technology, Respectively. Second, the effect size of sports was larger than that of non - sport. Third, meta - regression analysis showed that the positive effect on the size of the leisure bargaining constraint was affected by the proportion of males. Based on the results of this study, it is meaningful to provide basic data for the application of leisure constraints negotiation.

확장된 기술수용모델(ETAM)을 적용한 홈트레이닝 기기 사용 의도에 관한 연구

박재형(Park, Jaehyung),이철원(Lee, Chulwon),김민정(Kim, Minjeong) 한국여가레크리에이션학회 2021 한국여가레크리에이션학회지 Vol.45 No.3

In this study, the purpose of using home training devices was analyzed for the public who are interested in the intention to use the home training equipment by using the extended technology acceptance model. A total of 314 responses were collected and analyzed to verify the hypothesis. SPSS and AMOS programs were used for data processing, and data were analyzed using frequency analysis, confirmatory factor analysis, reliability analysis, correlation analysis, and structural equation model analysis. The results of this study conducted on this basis are as follows. First, user reviews had a positive effect on perceived ease of use, perceived usefulness, and using intention. Second, perceived ease of use had a significant effect on perceived usefulness and using intention. Third, perceived usefulness had a significant static impact on using intention. The results of this study contribute to an in-depth understanding of the participants’ intention to use home training devices, and furthermore, it can be used in depth to explore and utilize home training as a leisure life and culture.

여자축구동호인의 여가동기, 신체적 자기효능감, 여가만족의 관계

박광범(Park, Kwangbeom),이철원(Lee, Chulwon),서광봉(Suh, Kwangbong) 한국여가레크리에이션학회 2021 한국여가레크리에이션학회지 Vol.45 No.2

The purpose of this study is to analyze the relationship between leisure motivation, physical self-efficacy, and leisure satisfaction of Womens football players. In order to achieve the purpose of this study, 291 questionnaires were surveyed. Frequency analysis, correlation analysis, confirmatory factor analysis and structural equation model analysis were conducted by using SPSS 22.0 and AMOS 20.0. The results of this study were as follows. First, leisure motivation partially had a significant effect on physical self-efficacy. Second, physical self-efficacy had a positive effect on leisure satisfaction. Third, leisure motivation partially had a significant effect on leisure satisfaction. In conclusion, this study shows that leisure motivation and physical self-efficacy are important factors in the leisure satisfaction of Womens football players. Recommending football activities to women with physical motivation related to physical fitness improvement and women with confidence in their bodies can be a solution to the shortage of Womens football players pointed out as a problem in this study. In the future, it is judged that various studies targeting womens football players are needed for the development of domestic womens football.

목표지향적 행동모형을 적용한 스포츠테마파크 이용자의 행동의도 분석 : 스포츠몬스터를 중심으로

장찬희(Chang, Chanhee),이철원(Lee, Chulwon),문대선(Moon, Daesoun) 한국여가문화학회 2021 여가학연구 Vol.19 No.2

본 연구의 배경은 복합쇼핑몰 내부에 위치한 스포츠테마파크인 스포츠몬스터다. 몰링 문화가 도시민의 여가문화로 자리 잡는 가운데 스포츠몬스터는 스포츠 콘텐츠를 포함하는 여가시설로서 몰링족에게 새로운 유형의 여가공간 모델을 제시하고 있다. 본 연구는 이러한 새로운 여가 모델에 대해 이해하고자 스포츠테마파크 이용자의 행동의도를 목표지향적 행동모델(MGB)을 적용하여 분석하였다. 스포츠몬스터 이용자 365명을 대상으로 조사하였으며, 자료처리는 SPSS 및 AMOS를 활용하여 빈도분석, 신뢰도분석, 확인적 요인분석, 상관관계분석, 구조방정식 경로분석을 실시하였다. 연구결과는 다음과 같다. 첫째, 태도는 열망에 통계적으로 유의한 영향을 미치지 못하였다. 이는 스포츠테마파크 이용의 과거 경험이 충분치 못하여 이와 관련된 태도가 형성되지 않은 것으로 파악된다. 둘째, 주관적 규범은 열망에 유의한 정적 영향을 미쳤다. 스포츠몬스터 이용과 같이 사회적 관계 위에서 이루어지는 행위에서 주관적 규범은 열망을 불러일으키는 것으로 확인되었다. 셋째, 예기정서는 열망 형성에 높은 영향력을 미쳤다. 이는 스포츠몬스터가 제공하는 콘텐츠가 이용자의 감성적 만족감을 채워주고 있음을 의미한다. 넷째, 지각된 행동통제감은 열망과 행동의도에 유의한 영향을 미치지 못했다. 이는 스포츠몬스터의 지리적 한계와 동반자와 함께하는 특성, 그리고 제약에 대한 개별 이용자의 역량이 상이한 것에 기인한다. 마지막으로, 주관적 규범과 긍정 및 부정적 예기정서에 의해 형성된 열망 요인은 행동의도로 이어져 목표지향적 행동모형에서 핵심적 역할을 수행하는 것으로 확인되었다. The Sports Monster can be considered a new type of sports theme park. Also, as s malling activities, enjoying the Sports Monster can be regarded a new type of leisure activities. In this respect this study aimed to understand the sports theme park user’s behavioral intention. This study used model of goal-directed behavior(MGB) to explore user’s decision making process on intention to visit the sports theme park. A total of 365 questionnaires were collected from the users who have experienced the Sports Monster once or more. Frequency analysis, reliability analysis, correlation analysis, confirmatory factor analysis and structural equation modeling were performed by SPSS 24.0 and Amos 20.0. The results of this study are as follows: First of all, attitude did not have a significant effect on desire. Secondly, subjective norm and anticipated emotions of sports theme park users had statistically significant effects on Desire to visit sports theme park. Thirdly, perceived behavioral control of the users did not have a significant impact on desire and behavioral intention. Lastly, desire had a key role in model of goal-directed behavior by having a significant effect on behavioral intention.