• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1152-1157
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• 2007

Anemometers to examine the characteristics of the natural wind in the vicinity of the railway track has been installed in two spots, one at the Cheon-Asan station of the Seoul-Busan high-speed line, and the other at the Daechon station of the Changhang conventional railway line in 2006 to examine the characteristics of the natural wind around the railway track to estimate the actual wind speed acting on the train and to develop the wind gust model consisting with the Korean climate condition. The measured data shows that the instant wind velocity frequently exceeds the velocity of train speed restriction, 20m/s, and the actual wind velocities measured in the vicinity of the track are larger than the that measured by the Korean Meteorological Administration(KMA) because the anemometers are installed on the highly-elevated bridges.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.961-966
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• 2004

Lateral ballast resistance is one of track components that causes much effects in track buckling. Ballast work or tie renewal if is done the ballast original lateral resistance lose. Reduction of lateral ballast resistance may significantly reduce the stability of track. Lateral ballast resistance that is decreased by these work increases slowly according to the increase of train passing tonnage. We measured the ballast lateral resistance in Okchon station neighborhood in Seoul-Busan line to grasp fluctuation phenomenon of ballast resistance by ballast class-2 work. The rate of decrease of ballast lateral resistance shortly after ballast work and the rate of increase by increase of train passing tonnage were investigated.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(II)
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• pp.297-304
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• 2003

As the high speed rail to be opened at 2004, the. railroad will dominate over the transportation market in the Seoul-Busan corridor compared to road transport. But, it is obvious that the LOS(level of service) of railroad at 2004 will be worse in the areas that are not served KTX. For the speed-up of conventional line, it is a worldwide trend that tilting trains are served on the conventional railway line. That is the reason serving tilting trains is very efficient to use existing facilities and improve cruise time when capacity is available. In this paper, we suggest 10 routes are replaced with present operating trains(saemaeul, mugunghwa) by the tilting train.

• International Journal of Railway
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• 제4권2호
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• pp.29-33
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• 2011

High-speed rail study needs to focus on passenger movements as a key element of the planning process. A particular challenge is obtaining comprehensive information on high-speed rail passenger movements. A national preference stated survey was conducted from October to November of 2011 to meet this challenge through direct personal interviews of travelers between Seoul and Busan (the so called Kyung-Bu corridor). Over 40 interviewers were hired and trained to conduct personal interviews at several stations along locations within Kyung-Bu Seoul and Busan corridor. A total of 4,550 travelers were interviewed, furnishing an extensive database on high-speed rail passenger movements. The methodology and procedure employed to collect the national data for Korean high-speed train KTX are described. Specific issues investigated include survey design, questionnaire and strategy. Lessons learned from the high-speed rail passenger movement study provide insights for other countries contemplating similar high-speed rail studies.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(II)
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• pp.27-34
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• 2003

This Study is about adoption of slab track on the new high speed railway line between Daegu and Busan. While ballast track currently used is easy to construct with low investment, the error margin of rail track occurs in the track due to the repetition load of the train. Therefore, repairs should be carried out all the time to put the railway track at the repair level or less. In addition, noise caused by such repairs has become a new social problem at night. Construction costs for slab track are about 1.3-1.5 times higher than those for ballast track. However, slab track will save labor costs by solving various problems of ballast track. In this regard, it is feasible to adopt slab track on the new high speed railway line between Daegu and Busan.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.383-385
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• 2021

2018년에 발행된 반려동물 관련 산업 규모 추정 및 전망에 관한 논문에 따르면 2015년 기준 우리나라 반려동물 보유 가구중 26.9%가 30대 1인 가구이며, 부부로만 구성된 1세대 가구인 것이 확인되었다. 1인가구와 맞벌이 부부가 사회적으로 증가한 것과 관련하여, 반려동물이 원하지 않는 방치 시간의 급증과 훈련시간 부족이 문제가 된다고 판단된다. 본 논문은 레고마인드스톰을 이용한 반려동물의 훈련 및 관리를 위한 하드웨어 및 소프트웨어 제품 개발을 진행하였다. 레고마인드 스톰은 다양한 센서를 구비하였고, 쉬운 조립 및 비주얼 스크립팅을 통한 간단한 프로그래밍으로 반려동물을 훈련하거나 케어하는 장비를 제작 할 수 있다. 또한 자체 모듈화가 잘 되어있어, 새로운 장비로 전환 또한 쉬울 것으로 예상한다. 이 연구를 통해 반려동물시장 확대가 활발해지는 때 반려동물의 훈련과 관리에 도움이 되길 기대한다.

• 한국철도학회논문집
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• 제15권6호
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• pp.609-615
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• 2012

무인운전 경전철 운전계획을 위해 수동운전 기반의 TPS(Train Performance Simulation) 대신에 ATO(Automatic Train Operation) 자동운전에 기반한 TPS가 요구된다. 본 논문은 ATO 패턴을 사용하는 새로운 TPS 모델을 제시하고, 서울지하철 6호선의 시험구간과 부산-김해 경전철 전체 노선의 실제 자동운전 운행결과와 시뮬레이션 결과를 비교하였다. 실제와 유사한 ATO 운행패턴은 상용감속도, 저크, 역정차감속도, 구배환산거리의 4가지 파라미터를 도입한 새로운 TPS 모델에 의하여 매우 정밀하게 시뮬레이션 될 수 있다. 무인 자동운전을 위한 상업운전용 표정시분은 ATO기반 TPS의 "Fast" 운전모드 운행시간에 경전철 표준사양에 따라 km당 3초의 여유를 가지도록 본 논문에서 제시된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.334-338
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• 2004

KTX has started commercial service from Seoul to Busan and Mokpo since April 1, 2004. The service line is composed of new-high speed line and conventional line. Before KTX is runs, the maximum operational speed on conventional line was 140km/h. In order to reduce the traveling time, operation speed of KTX must be increased on the conventional line. So, we performed test running with prototype HSR-350x and verification of safety was made in $10\%$ speed-up. Korean High Speed Train HSR-350x) was developed by G7 - R&D project. In this study, in safety aspect, several technical reviews are introduced and the possibility for reduction of traveling time is investigated on the conventional line by using HSR-350x.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.301-303
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• 2006

According to speed elevation of internal railroad, Seoul-Busan high-speed railway was opened up. Setting hereupon speed elevation of old line propel. Therefore, research and development about Tilting train are propel by one of method that do not need huge investment such as earthwork serving speed elevation of general railroad. Studied about car report lake this treatise applies in Tilting train's signal control.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2014년도 추계학술대회 논문집
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• pp.131-133
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• 2014

Vibration exposure of the KTX and ITX-saemaeulho on the Gyung-Bu line was evaluated and compared in terms of human health based on ISO 2631. RMS value of KTX was calculated as much lower than ITX-saemaeulho in all travel sections. When VDV result of the two trains drived return travel from Seoul to Busan in single day is compared on the health guidance caution zone of ISO 2631, vibration exposure of KTX is safer than ITX-saemaeulho which is marginally under the caution line.