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김익희(Kim, Ik-Hui),김영진(Kim, Yeong-Jin) 대한교통학회 2007 대한교통학회 학술대회지 Vol.56 No.-
지난 20여년간 우리나라는 급격한 경제성장에 따라 지속적 교통수요 증가 추세를 보였으며, 이에 대한 SOC 투자로 국가간선교통망이 형성되었다. 특히 철도의 경우는 1990년 이후 지역간 통행을 담당하는 일반철도에 비중을 두어 투자가 이루어졌다. 그러나 2004년 KTX 개통이후 일반열차는 운행회수 축소로 인해 지속적인 수요 감소 추세를 나타내고 있으며, 이러한 일반열차의 수요 감소는 운영자의 경영 악화 뿐만 아니라 이용자 서비스의 저하를 야기 시켰다. 이에 기존 자원의 효율적 활용과 장래 수요에 효과적으로 대응하기 위한 중장기적 열차운영 계획 수립 필요성이 제기되었다.
김익희(Kim, Ik-Hui),고승영 대한교통학회 2003 대한교통학회 학술대회지 Vol.44 No.-
지난 20여년간 우리나라는 급격한 경제성장에 따른 자동차 이용의 증가로 폭발적인 교통수요 증가를 보여 왔으나 이에 따른 적절한 수요관 리정책 부재 및 교통 인프라 확충의 한계라는 문제로 인해 교통혼잡은 날로 심각해져 왔다.
김익희(Ickhee Kim),김인철(Incheol Kim),배영규(Yeong-Gyu Bae),왕연대(Yeondae Wang) 한국경영과학회 2013 韓國經營科學會誌 Vol.38 No.3
It is very important that the calculation of railroad track capacity in infrastructure investment analysis and train operation planning. The dwelling time is one of the factors that influence in railroad track capacity. Current research in dwelling time has been focusing on theoretical investigation, the state of the research in effective variable (dwelling time etc) is insufficient. In this paper, we clearly draw the concept of railroad track capacity and the estimate on modeling of relationship railway demand and dwelling time. Also, we compare and analyze the variation of railroad track capacity according to transit railway demand in Gyeongin Line (Guro~Inchon). This paper is expected to contribute for improving on the in-using equations and methods in train operation planning as well as for improving level of service on railway user.
김익희(Ik Hee Kim),조찬우(Chan Woo Jo),최선호(Seon Ho Choi),김태준(Tae Jun Kim),금보성(Bo Seong Geum),이창훈(Chang Hun Lee),유동인(Dong In Yu) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
This paper describes the analysis of the contact angle to determine the drain performance according to tube material of the micro channel heat exchanger. The contact angle of the droplet depends on whether the fin surface is homogeneous or heterogeneous and also depends on the topography. A study was conducted to find a method with optimal drain performance by analyzing the contact angle by varying the material and surface characteristics of the fin.
환경 오염 및 과학 실험실 폐수와 폐기물 처리에 대한 과학 교사들의 인식과 태도 조사
김익희(Ik-Hee Kim),박국태(Kuk-Tae Park),정진수(Jin-Su Jeong) 한국환경교육학회 2007 環境 敎育 Vol.20 No.4
The purpose of this study was to survey science teachers, perception and attitudes on disposal of school laboratory waste water and materials. To fulfill this aim, a questionnaire was administered to 244 secondary school science teachers. The result of this study revealed that there was no large disparity in the degree of understanding of laboratory waste disposal and the laboratory waste water treatment, and in secondary science teachers' perception and practicing attitude on the environment. While science teachers had deep understanding of laboratory waste disposal and its influence on environmental pollution, they expressed less positive attitude toward the actual disposal of waste materials and waste water, and participation in teacher training. Therefore, it is necessary to provide standards of systematized disposal methods and proper disposal facilities in middle and high school laboratories, as well as to investigate teachers' needs before providing teacher training program.
김익희(Kim Ick Hee),이상명(Lee Sang-Myoung),윤경만(Yoon Kyoung Man) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
Since 2010 December the Gyeongchun line can provide better service than the other modes in respect of cost & time efficiency by operating electric double track from Sangbong station to Chuncheon station. However customers living in the Northern part of capital area which there are stations of line No.1 have inconvenience to transfering twice to access Gyeongchun line. To minimize inconvenience this study has analyzed the demand variation of Geongchun line upon changing the terminal of some trains on Gyeongchun line which reduces the number of transfer. In this study the demand variation has been estimated by the direct demand model considering only saving time between O/D. So some additional modifications are required because the effect of fare and accession convenience has not been considered.
도시철도 7호선 연장 개통에 따른 경인선 수요변화 연구
김익희(Kim Ick Hee),양유경(Yang You Kyung) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Recently, there has been growing interest in Gyongin Line demand estimation, because SMRT(Seoul Metropolitan Rapid Transit Corporation) Line 7 will be extended west by 9.8km from Onsu to meet the Gyongin Line at Bupyeong-gu Office. This study was designed to estimate the change of traffic demand in Gyongin Line before and after the completion year 2011, also provide against the economic loss caused by the derived demand from Gyongin Line to SMRT Line 7. In this paper we give preliminary results for the strategic plans for traffic demand estimation and train operating plan in Gyongin Line by analyzing transport performance of Seoul metropolitan subway, and an additional study on the transportation market and the urban development plan is needed for more accurate results.