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만성폐쇄성폐질환을 동반한 탄광부진폐증자의 혈청 중 LD 및 CRP 농도
이종성,신재훈,이유림,백진이,최병순,Lee, Jong Seong,Shin, Jae Hoon,Lee, YouLim,Baek, JinEe,Choi, Byung-Soon 대한임상검사과학회 2017 대한임상검사과학회지(KJCLS) Vol.49 No.3
Coal workers' pneumoconiosis (CWP) and chronic obstructive pulmonary disease (COPD) are characterized as chronic inflammation of the lung in miners exposed to coal mine dust. The aim of the present study was to compare the levels of serum lactate dehydrogenase (LD) and C-reactive protein (CRP) as the inflammatory indices between subjects with CWP and those with CWP and COPD (CWP+COPD), among a total of 97 subjects (27 control, 40 CWP, and 30 CWP+COPD patients). The mean levels of serum LD (165.7 vs 184.6 U/L, p=0.016) and CRP (0.08 vs 0.15 mg/dL, p=0.002) in subjects with CWP were higher than those of in subjects without CWP. The mean level of serum CRP (0.10 vs 0.19 mg/dL, p=0.008) in subjects with COPD was higher than that in subjects without COPD. In an analysis of covariance adjusted by age, the mean level of serum CRP showed statistical significance among the study groups, control, CWP, and CWP+COPD (0.07 vs 0.13 vs 0.19 mg/dL, p=0.005); the mean level of serum CRP in the CWP+COPD group was significantly higher than that of the control group (p=0.001). The results suggest that a high level of CRP in the serum may be associated with CWP and COPD in retired coal miners.
이종성(Lee Jong-Seong),이희성(Lee Hi-Sung),문대섭(Moon Dae-Seop) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
북한산은 수도서울의 천연적인 아름다움을 갖고 있는 국립공원으로 시간적으로는 현재의 시점에서 30년 기준으로, 공간적으로는 북한산 및 수도권 일대로 하였으며, 북한산을 관광자원으로 하기 위해 환경친화적인 산악철도개발과 노약자와 장애인 등 교통 편의 증진을 위해 북한산 관광철도개발의 가능성과 산악 열차이용자에 대한 지불의사 수준에 따른 경제성 변화를 연구하고 추진방안을 파악하여 정책적 방향을 제시하고 기술적인 개발 가능성을 검토하였다. Bukhansan National Park is located in the capital city, Seoul, and it provides various kinds of natural beauty and wonderful scenery. The scope of this study is considering 30 years from now, and covering Bukhansan and its surroundings. This study is made to set up the development plan, to guide the strategic direction, and to review the technical feasibility of mountain railway over Bukhansan National Park by examining the feasibility and the user's willingness to pay for the environmentally-friendly mountain railway and more convenient access to mobility-disabled persons.
이종성(Lee, Jong-Seong),송문석(Song, Moon-Shuk) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.7
우리나라는 국토의 약 2/3이상이 산악지형으로 이루어져 있으며 산악지역의 자연공원을 관광 자원화 하여 수혜를 원하는 사람들에게 접근성이 용이하도록 정책을 활성화할 필요가 있다. 이러한 여건을 감안하고 국토의 균형발전과 철도 인프라구축 정책원칙 우선 적용을 위한 일환으로 산악지역 중 가장 실효성과 경제성이 있을 것으로 예상되는 북한산에 대해 산악관광열차로서의 도입시 이용자 지불의사 수준에 관한 대안을 적용하여 산악철도에 대한 경제성 변화를 연구 하였다. 분석결과 LIM(선형유도모터) 과 랙&피니언 시스템의 편익비용비가 각각 0.73, 0.8로 나타났으며, 랙&피니언방식이 적용가 능 한 대안으로, 향후 새로운 신 기술개발이 이루어지고, 노선내 터널을 일부시공 한다면 선형유도모터방식도 가능한 대안으 로 검토 되었다. South Korea has more than two-thirds of the land consists of mountainous terrain. It is necessary to enable the recycling of mountain tourism policy to allow people to use. This paper studied Bukhansan where there seems to have the most economical efficiency and effectiveness as an alternative means of transportation applying user'swillingnessto pay by age based upon the Study on Introduction Bukhansan Mountain Railway which was progressed as part of the balanced national development and railway promotion strategy. The Analyisis results are shown that cost-benefit ratio is Lim 0.73 and rack & pinion 0.8. The rack-and-pinion method is selected as an applicable alternative. If the new technologies are developed and made part of the construction of the tunnel route was judged as possible as an alternative way LIM