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손영진,최항석,고태영,Son, Youngjin,Choi, Hangseok,Ko, Tae Young 한국터널지하공간학회 2018 한국터널지하공간학회논문집 Vol.20 No.2
Subsea tunnel can be highly vulnerable to seawater intrusion due to unexpected high-water pressure during construction. An artificial ground freezing (AGF) will be a promising alternative to conventional reinforcement or water-tightening technology under high-water pressure conditions. In this study, the freezing energy and required time was calculated by the theoretical model of the heat flow to estimate the total amount of refrigerant required for the artificial ground freezing. A lab-scale freezing chamber was devised to investigate changes in the thermal and mechanical properties of sandy soil corresponding to the variation of the salinity and water pressure. The freezing time was measured with different conditions during the chamber freezing tests. Its validity was evaluated by comparing the results between the freezing chamber experiment and the numerical analysis. In particular, the freezing time showed no significant difference between the theoretical model and the numerical analysis. The amount of refrigerant for artificial ground freezing was estimated from the numerical analysis and the freezing efficiency obtained from the chamber test. In addition, the energy ratio for maintaining frozen status was calculated by the proposed formula. It is believed that the energy ratio for freezing will depend on the depth of rock cover in the subsea tunnels and the water temperature on the sea floor.
손영진,Son, Yeong-Jin 한국화재보험협회 2002 防災와 保險 Vol.92 No.-
본 고는 (2003년도 특수건물 화재조사 분석) 중, 1. 조사분석의 목적 및 대상, 2. 화재동향, 3. 분석결과만 발췌하여 게재한 것이다.
방재뉴스 - 한국화재안전기준[KFS] 주용 내용 소개(4)
손영진,Son, Yeong-Jin 한국화재보험협회 2001 防災와 保險 Vol.89 No.-
KFS에서 규정하고 있는 내용 중 각 설비별 설치, 유지관리 및 화재예방 등에 필요한 사항으로서 중요사항을 발췌.요약한 것입니다. 보다 더 상세한 내용을 알고자 하시는 분들은 해당 KFS를 참고하시기 바랍니다. KFS 1023, 이산화탄소소화설비기준(Standard on carbon Dioxide Ex-tinguishing System)
방재뉴스 - 한국화재안전기준(KFS) 주요 내용 소개(6)
손영진,Son, Yeong-Jin 한국화재보험협회 2001 防災와 保險 Vol.91 No.-
KFS(Korea Fire Safety Standards)에서 규정하고 있는 내용 중 각 설비별 설치, 유지관리 및 화재예방 등에 필요한 사항으로서 중요사항을 발췌.요약한 것입니다. 보다 더 상세한 내용을 알고자 하시는 분들은 해당 KFS를 참고하시기 바랍니다.
방재뉴스 - 한국화재안전기준(KFS) 주요 내용 소개(5)
손영진,Son, Yeong-Jin 한국화재보험협회 2001 防災와 保險 Vol.90 No.-
KFS(Korea Fire Safety Standards)에서 규정하고 있는 내용 중 각 설비별 설치, 유지관리 및 화재예방 등에 필요한 사항으로서 중요사항을 발췌.요약한 것입니다. 보다 더 상세한 내용을 알고자 하시는 분들은 해당 KFS를 참고하시기 바랍니다.
해저터널을 위한 동결공법 냉매로서의 액화공기 적용성에 대한 실험적 연구
손영진,최형철,문흥만,최항석,고태영,Son, Young-Jin,Choi, Hyeungchul,Moon, Hung-Man,Choi, Hangseok,Ko, Tae Young 한국터널지하공간학회 2016 한국터널지하공간학회논문집 Vol.18 No.2
In this paper, the liquid air was selected as the refrigerant in artificial ground freezing to be used for rapid ground freezing and to reduce the risk of suffocation and the applicability of liquid air was verified. In order to evaluate the stability of the liquid air, the oxygen concentration of mixtures with liquid nitrogen and liquid oxygen was experimentally examined to meet the oxygen concentration criteria in the Occupational Safety and Health Act. In addition, the effects of the mixture ratio of liquid nitrogen and liquid oxygen, pressure and flow rate change in the storage vessel on the oxygen concentration in the liquid air were investigated. As a result, the ratio of liquid nitrogen and liquid oxygen 8: 2 was shown to meet the oxygen concentration standards. Pressure and flow rate change in the storage vessel did not have significant effects on the oxygen concentration in the liquid air.
웨이트트레이닝 시 set간 휴식시간의 차이가 여성고령자의 인슐린저항성, 염증지표 및 비만관련 호르몬에 미치는 영향
손영진 한국스포츠학회 2017 한국스포츠학회지 Vol.15 No.1
본 연구는 여성노인들의 웨이트트레이닝 시 set간의 휴식시간에 차이를 두어 인슐린저항성, 염증지표 및 비만관 련호르몬에 어떠한 영향을 미치는지 알아보기 위함이 목적이다. 연구대상자는 29명으로 하였으며, 60초 휴식집단 10 명, 120초 휴식집단 9명, 180초 휴식집단 10명으로 구분하였다. 자료분석은 SPSS 19.0프로그램을 사용하였으며, 공 변량분석을 실시하였다. 결과로서 인슐린 저항성은 60초와 120초 집단이 180초 집단에 비해 유의하게 낮게 나타났다. 염증지표는 IL-6와 TNF-α 모두 60초집단과 180초 집단이 180초 집단 보다 높게 나타났다. 비만관련 호르몬 중 아 디포넥틴은 60초 집단이 180초 집단보다 높게 나타났고, 렙틴은 180초 집단이 60초집단보다 높게 나타났다. The purpose of this study was to identify an effective exercise method by investigating the effect of rest time difference between sets during weight training on the Insulin resistance, Inflammatory Markers and Adipocytokines in the Elderly Women. For this study, 29 elderly women in were subjected to 60sec rest time group of 10, 120sec rest time group of 9, and 180sec rest time group of 10. Analysis of ANCOVA was done using SPSS 19.0 for data processing. The results of this study are as follows: Insulin resistance in Extensor showed significantly lower in 60sec and 120sec rest time group than in 180sec rest time group. Inflammatory Markers in both of IL-6 and TNF- α was significantly higher in 60sec and 120sec rest time group than in 180sec rest time group. adiponectin in 60sec rest time group was higher than that in 180sec rest time group. leptin in 180sec rest time group was higher than that in 60sec rest time group.