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송영철(Young Chol Song) 한국지역지리학회 2002 한국지역지리학회지 Vol.8 No.1
본 연구는 관광자의 거주지 특성에 따른 관광행태의 차이점을 통계적 방법에 의해 분석하여 연구한 것이다. 그 결과 거주지 특성에 따라 많은 차이점들이 발견되었으며, 특히 14개의 관광행태의 범주에서 11개가 도시·농촌별 특성과 일치하였고, 권역별로는 단 4개만이 일치하였다. 이는 도시와 농촌간의 사회, 경제, 문화의 격차가 관광행태 면에서도 그대로 나타나고 있음을 입증한 것이라고 할 수 있다. 따라서 향후 국토개발 계획을 수행함에 있어 이와 같은 문제를 염두에 두고 노력해야 하며, 국내 여행자들에게 여행의 기회를 균등하게 배분함으로써 외래 관광객에 대한 국민적 자존심을 회복시켜야 할 것이다. In this study we shall compare the differences among Korean tourists` behavioral patterns according to tourists` residences by using statistical techniques on questionnaires for 1,372 tourists around Korea. In conclusion, we found varying degrees of influences among touristic behaviors in relation to residences. We documented 11 out of 14 categories of touristic behaviors in urban/rural areas around Korea. And there were 4 out of 14 categories of those found in provincial areas. Characteristics of urban/rural areas had a significant influence on touristic behaviors compared to provincial areas. Therefore, tour authorities provide for a balanced policy of travel around Korea. As mentioned above, these touristic behaviors had many differences according to urban/rural areas and provinces. We are concerned that these differences are likely to cause psychological disturbances among social classes. I hope that these results will be reflected in the development polices of tourist goods and tour sites.
부착력과 임피던스를 이용한 에폭시 도장의 열화에 관한 실험적 평가(II)
나환선 ( Nah Hwan-seon ),송영철 ( Song Young-chol ) 한국구조물진단유지관리공학회 2001 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.5 No.2
The purpose of this experiment is to quantitively establish aging status of epoxy coating on containment structure at nuclear power plant. On six months after accelerated aging experiment for 64 days, adhesion test was performed to evaluate an physical bonding. To compare with adhesion data, impedance data by ultrasonic test were acquired. In case of almost 50 % of adhesion force decrease, aging phenomena of epoxy coating such as pin hole, blistering was discovered. To improve reliability on quality degradation of epoxy, co-relation between two kinds of different data was analyzed. By tracing co-related these data, it is possible to figure out physical status of as-built epoxy coating. The possibility to develop new methodology of time - dependent aging status on epoxy coating was identified.
나환선 ( Nah¸ Hwan-seon ),서용표 ( Suh¸ Yong-pyo ),송영철 ( Song¸ Young-chol ) 한국구조물진단유지관리공학회 2000 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.4 No.2
The purpose of this study is to quantitatively evaluate the aging status of epoxy coating onto containment structure in nuclear power plant. Prior to main accelerated aging test, pre-test under short term acceleration was performed to identify the reliability of relation between visual and ultrasonic testing results. Time-dependent degradation results of epoxy coating taken by VT were different from results taken by UT. According to aging acceleration factor, degradation pattern of epoxy coating by VT was similar not only to that by UT, but also to that by elongation change. The possibility to develop new methodology for investigation of time-dependent epoxy coating was identified.
에폭시 도장재의 정량적 열화도 평가를 위한 실험적 연구
나환선 ( Nah Hwan-seon ),김노유 ( Kim Noh-yoo ),송영철 ( Song Young-chol ) 한국구조물진단유지관리공학회 2001 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.5 No.1
The purpose of this study is to quantitatively evaluate the aging status of epoxy coating onto containment structure in nuclear power plant. Based on accelerated aging experiment for 64 days, both adhesion test data and impedence data by UT were received per each six step as time goes. By searching for compatibility between two kinds of different data, physical aging situation of as-built epoxy coating was figured out. The possibility to develop new methodology of time-dependent aging status on epoxy coating was identified.
부착력과 임피던스를 이용한 에폭시 도장재 열화 특성에 관한 실험적 평가
나환선 ( Nah Hwan-seon ),김노유 ( Kim Noh-yu ),권기주 ( Kwon Ki-joo ),송영철 ( Song Young-chol ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 논문집 Vol.7 No.2
The purpose of this paper is to quantitatively investigate aging state of epoxy coating on containment structure at nuclear power plant. In order to evaluate an physical bonding of the epoxy coating, adhesion test was performed on a degraded epoxy coating on concrete specimens fabricated by accelerated aging experiment. In addition, impedance data by ultrasonic test were measured to compare with adhesion data. From almost 50 % of the specimens, aging phenomena of epoxy coating such as pin hole, blistering was discovered. To improve reliability on quality degradation of epoxy, co-relation between two kinds of different data was analyzed. By tracing co-related these data, it was possible to figure out physical state of as-built epoxy coating. The possibility to develop new methodology of time - dependent aging state on epoxy coating was found and discussed.
열중량 분석에 의한 에폭시 도료의 열화 특성 변화 평가
나환선,김우범,송영철 대한건축학회 2000 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.20 No.2
The purpose of this study is eventually to predict the life-time of epoxy liner onto containment structure in nuclear power plant. Prior to main accelerated aging test, pre-test under artificial condition was performed to acquire how much visual inspection results were correlated with data taken by chemical approach. Throughout short-term laboratory acceleration, the temperature-weight loss relations to evaluate the aged status of the epoxy coating were derived from thermal gravimetric analysis. Based on getting the lines of degradation of epoxy coating from experimental data, new methodology to manage the time dependent epoxy coating was identified.