• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.8
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• pp.563-571
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• 2020

The purpose of a utility tunnel is to prevent repeated excavation as well as disasters and calamity. Domestic utility tunnels have been built in new town development plans. Currently, it is difficult to establish a utility tunnel due to a conflict of opinions by organization and financing. In this paper, research was conducted based on systematic procedures to suggest ways of improving the activation of utility tunnels in new cities and existing cities. First, a survey was conducted on the laws and status of utility tunnels, and problems were derived based on the review and analysis of the status. Finally, a method suggesting improvement measures to solve problems was applied. Based on the related laws and problems, the status of the development project was analyzed to select the installation scale in the utility tunnel, and the appropriate scale was reviewed through economic feasibility analysis of the installation scale under 2 million square meters. Considering the new city and the existing city, it was proposed to support administrative expenses to reduce the burden on additional installation areas and occupied institutions in a utility tunnel. In addition, improvement plans were presented for the details of the master plan for reviewing the installation regional of the utility tunnel. This paper will help officials to work smoothly when planning and installing utility tunnels in the future.

• Journal of Wetlands Research
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• v.18 no.3
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• pp.324-329
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• 2016

Constructed wetlands are widely applied in urban and rural areas for various purposes such as pollutants reduction, acquisition of eco-spaces and habitats, flooding reduction, acquisition of water resources and environmental education. Since the design of constructed wetlands utilizes ecosystems, special consideration must be given to ecological mechanisms, environmental mechanisms and hydrological mechanisms. To ensure the sustainable functionality of constructed wetlands, it is necessary to achieve stable flow rate and velocity, and remove sediments to ensure sufficient space for detention. To enhance the efficiency of constructed wetland sedimentation basins, this study determined the optimal position for baffle installation, and applied Computational Fluid Dynamics (CFD) to the cross-sectional design of wetlands. CFD analysis revealed that the decrease in flow velocity with baffle installation enhanced the efficiency of sedimentation of particulate matters. Vertical baffles had higher sedimentation efficiency than those with an inclined angle. When vertical baffles were installed in the sedimentation basin of a hybrid constructed wetland to reduce non-point source pollutants in urban areas, the average flow velocity within the basin decreased by 10~30%, while the sedimentation efficiency improved by 1.3~1.5 times. The application of CFD to constructed wetlands is expected to improve the cost efficiency of designing hybrid constructed wetlands with high removal efficiency.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.1
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• pp.311-326
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• 2023

This paper proposes a plan to improve the installation and operation of traffic safety facilities using a microscopic simulation by confirming the difference in the perception method and range of autonomous vehicles and human vehicles. In this study, the existing 『Traffic Safety Sign Installation·Management Guidelines』 was reviewed, and safety signs among traffic safety facilities were classified according to changes in vehicle behavior. Subsequently, for the classified facilities, the installation location of the traffic sign was changed through simulation experiments, and the optimal location was inferred to suggest an improvement plan. This study confirmed how traffic safety facilities installed based on the visibility of human drivers affect road efficiency and safety in mixed traffic flow with autonomous vehicles and human-controlled vehicles. The optimal location derived through this study is meaningful because it can be used as the basis for revising the guidelines on the installation and management of traffic safety facilities.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.2 no.5
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• pp.16-21
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• 1981

농수산부는 금년부터 농협새마을 협동조직 활성화 방안의 일환으로 모든 농촌조직을 새마을영농회 중심으로 통폐합하였고 공동방제단도 새마을영농회공동작업반으로 흡수하는 한편 책임관리기관을 지정 책임방제를 실시하고 있다. 또한 적극적인 참여의식제고를 위해 공동방제시범포를 설치, 운영하며 우수 공동작업반장에게는 선진지 견학$\cdot$해외 시찰등의 특혜를 부여했다

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.41-43
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• 2022

항행선박에 위치정보를 제공하기 위하여 관내 유인등대 및 주요 항로상에 레이더 비콘 14기를 설치·운영 중이나, 대부분의 선박에서 전자해도와 AIS를 이용하고 다른 표지와 기능이 중복되어 레이더 비콘 운영에 대한 개선방안을 마련하였다..

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.27-29
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• 2023

본 연구에서는 항로표지 통합관리시스템 자국 운영 예산 절감 및 데이터 신뢰성 향상을 위한 문제점 분석 및 전원연계형 RTU 개발을 진행하였으며, 대산청에서 실제 적용 중인 항로표지 점검정비 절차 표준화 방안, 해양구조물 경계표시등 설치방법, 정비점검 현장 안전개선사항에 대해 검토하였다

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.11a
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• pp.5-7
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• 2023

전국 수중방파제 현황 및 최근 사고사례를 공유하고, 특히 지속적으로 사고가 발생하는 포항권역 '송도해수욕장 송도해수욕장'수역의 항로표지시설 확충·재배치 및 안전시설물 추가설치, 어민 대상 홍보·계도 등 좌초예방을 위한 개선방안을 연구하였다.

• 농업기술회보
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• v.39 no.2 s.463
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• pp.18-21
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• 2002

• TTA REPORT
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• v.4 no.6 s.16
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• pp.33-34
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• 1992

• Water for future
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• v.37 no.5
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• pp.61-65
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• 2004