• 대한토목학회논문집
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• 제41권3호
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• pp.257-265
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• 2021

본 연구는 자전거 이용에 필요한 이용환경과 관련된 지표를 도출하고, 자전거 이용환경을 평가할 수 있는 평가지표를 개발 및 적용하였다. 분석결과 평가요소 간 상대적 중요도는 자전거 안전성이 가장 높았으며 전체적으로 자전거 주행에 직접적인 영향을 미치는 항목의 우선순위가 높고 간접적인 영향을 미치는 항목은 중요도가 낮은 것으로 나타났다. 평가모형을 토지이용별로 자전거도로에 적용한 결과 비교적 현실적으로 묘사할 수 있는 것으로 확인되었고 향후 이를 활용하여 지자체의 자전거도로 이용환경 개선을 위한 개선방향 도출 등에 기여할 것으로 기대된다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.102-103
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• 2021

In Korea, starting with the Busan residential-commercial fire in 2010, the frequency of fire expansion in high-rise buildings has been continuously increasing. In the case of such large-scale fires, most of the fires generated from the inside tend to expand to the upper floors by riding the exterior material or exterior wall panels through the process of being ejected to the outside. It has been revised so that combustible exterior materials cannot be used in buildings. However, due to the legal fluoride level, the fire risk of high-rise buildings is still high, such as the case of a 33-story residential-commercial fire in Ulsan. In order to prevent such fire expansion, it is considered that it is necessary to first understand the nature of the fire occurring inside and the mechanism of the fire expansion in the upper floor. The purpose of this study is to propose improvements in domestic fire safety design through a review of existing literature to prevent fire expansion of high-rise buildings.

• Journal of Forest and Environmental Science
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• 제39권4호
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• pp.254-260
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• 2023

A sensor system has been developed that uses an ultrasonic sensor to detect the downhill slope on the side of a forest road and prevents a vehicle-type forest machine from rolling down a mountainside. A specular reflection of ultrasonic wave might cause severe issues in measuring distances to targets. By investigating the installation angle of the sensor to minimize the negative effects of specular reflection, the installation angle of lateral monitoring ultrasonic sensor could be determined based on the width of road shoulder. Obstacles such as small rocks or piece of log in a forest road may cause the forest machine to be overturned while the machine riding over due to excessive its posture change. It was determined that the laser sensor could be a part of a sensor system capable of specifying the location and size of small obstacles. Not only this sensor system including ultrasonic and laser sensors can issue a warning of dangerous sections to drivers in forest forwarders currently in use, but also it can be used as a driving safety sensor in autonomous forest machine or remote-control forest machine in the future.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.181-199
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• 2011

수도권의 인구 집중화와 역세권 주변 개발 등으로 다수의 역사가 건설당시 추정 이용승객을 초과하여 혼잡한 실정으로 이에 지하철 이용승객의 안전과 비상대피 공간확보, 쾌적한 승차 환경조성을 위하여 친환경적으로 도심지 지하철역사의 혼잡도 개선 관한 연구방안.

• 한국가스학회:학술대회논문집
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• 한국가스학회 2006년도 추계학술발표회 논문집
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• pp.129-137
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• 2006

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.122-127
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• 2008

General bus stop is very simple and have some problem to protect the passengers and don't have any proper information messenger for the convenience of bus riding in spite of present initiative bus information system. However, this paper have introduced new conceptual modular-smart station avaliable to both public bus and bimodal tram. It can secure the passenger's safety from other danger attributes like running car or unexpected natural disaster and supply the passengers the variable information from display which is connected to the control center. Therefore, modular-smart station is both shelter and information messenger for passenger's safey and convenience.

• 한국철도학회논문집
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• 제6권3호
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• pp.203-208
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• 2003

With designing alignment of railway for urban rail transit, a greater attention is paid to the riding safety and the comfort of the passengers. Especially, cant, transition curve, minimum curve radius are considered as very important alignment factors for the curve. For the above alignment factors, in this study, comparative studies on the design criteria of foreign rail transit are conducted. And reasonable design criteria of the alignment for urban rail transit are proposed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 춘계학술대회 논문집
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• pp.297-302
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• 2003

With designing alignment of railway for urban rail transit, a greater attention is paid to the riding safety and the comfort of the passengers. Especially, cant transition curve, minimum curve radius are considered as very important alignment factors for the curve. For the above alignment factors, in this study, comparative studies on the design criteria of foreign rail transit are conducted. And reasonable design criteria of the alignment for urban rail transit are proposed.

• 대한기계학회논문집
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• 제12권6호
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• pp.1450-1461
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• 1988

본 연구에서는 국내에서 제작된 차량을 대상으로 임펄스 입력이 가하여졌을 때의 동적 특성을 예측하기 위하여 동적 모델링과 연립 운동 방정식을 구하고 수치 적 분 계산 프로그램을 작성하였다. 또한 상용 프로그램인 ADAMS를 이용하여 범프를 통 과할 때의 차량의 동적 거동을 구하고 이를 실험적으로 검증하여 모델의 타당성을 입 증하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1622-1627
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• 2008

A suspension is a core part, determining running stability and riding quality of vehicles and its stiffness is essential parameters in the process of vehicle designing. Suspension stiffness shall be adjusted to meet requirements of running stability and curve running performance, as adding stiffness to primary suspension for running stability in high-speed running results running performance degradation in curved track. The purpose of the report lies in utilization of usable data for optimization of suspension via analyzing running performance through changing stiffness of railway vehicle suspension.