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이수길(Su-Gil Lee),한성호(Seong-Ho Han),송용수(Yong-Soo Song) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the power suppling device is very essential for stable electric power supply.
이수길(Lee Su-Gil),한성호(Han Seong-Ho),송용수(Song Yong-Soo) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantagraph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantagraph for the power suppling device is very essential for stable electric power supply.
Ultrafine Particle의 독성, 측정방법 및 관리
이수길 ( Su Gil Lee ),김성수 ( Seong Soo Kim ) 한국산업보건학회 2010 한국산업보건학회지 Vol.20 No.3
This study is an overview of toxicities and measurement techniques of ultrafine particles (UFPs), and their exposure controls. UFPs are ubiquitous in many working situations. Exposure to UFPs is possibly causing adverse health symptoms including cardio-respiratory disease to humans. In order to measure exposure levels of airborne UFPs, there are current available measurement guidelines, instruments and other techniques (i.e. contour mapping, control banding). However, these risk assessment techniques including measurement techniques, controls and guidelines are dependent on background levels, metrics (e.g. size, mass, number, surface area, composition), environmental conditions and controls. There are no standardized measurement methods available and no generic and specific occupational exposure standards for UFPs. It is thought that there needs to be more effort to develop Regulations and Exposure Standards for generic UFPs should be based on more exposure data, health surveys, toxicological data and epidemiological data. A carefully considered hierarchy of controls can also reduce the maximum amount of airborne UFPs being emitted from diverse sources in industries.
이수길(Su-Gil Lee),한성호(Seong-Ho Han),송용수(Young-Soo Song),이우동(Woo-Dong Lee),한영재(Young-Jae Han) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
Tilting trains are now an established feature of railway operations throughout the world. For intercity traffic, tilt provides operators with increasing speeds, and therefore enhanced competitiveness, on existing routes where insufficient traffic or a lack of funds precludes the construction of a dedicated new high-speed railway. Appling the tilting train, we can expect 30% of speed up on existing lines, but the stability of the electric current would be low because of tilting the train. Also, the spark between the catenary and pantograph cause environmental problems such as noise, radio wave malfunction. Therefore, the tilting on pantograph for the power suppling device is very essential for stable electric power supply.