• 방재와보험
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• s.68
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• pp.55-57
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• 1996

• JOURNAL OF ELECTRICAL WORLD
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• s.458
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• pp.53-55
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• 2015

국토교통부는 '건축물의 에너지절약 설계기준'과 관련해 지난해 9월, 12월 두 차례 개정하고 시행에 들어갔다. 이 기준은 건축물의 효율적인 에너지관리를 위해 열손실 방지 등 에너지절약 설계에 관한 기준, 에너지절약계획서 및 설계 검토서 작성기준, 녹색건축물의 건축을 활성화하기 위한 건축기준 완화 등에 관한 사항을 담고 있다. 특히 9월 개정에서는 LED조명 설치 확대, 에너지성능지표(EPI) 전기부문 검토항목 추가 등 전기부문에 대한 내용이 다수 포함돼 있어 관계자들의 관심이 요구된다. 개정내용 중 전기부문에 대해 자세히 해설한다.

• Electric Engineers Magazine
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• v.248 no.4
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• pp.29-32
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• 2003

1965년 6월에 제정된 각종 기술기준은 경제산업성이 일본전시협회를 비롯하여 당시의 화력발전기술협회, 발전수력협회 등의 관련단체에 자문을 구하여 이들로부터의 답신을 기초로 기술기준을 제정하였다. 그 후 각종 기술기준에 대한 지속적인 조사연구를 진행함으로써 관계 성청의 자문에 대하여 답신하는 외에 기타 사항에 대하여 민간의견의 상신을 도모하고 아울러 이들의 기술기준과 표리일체가 되는 민간자율표준으로서의 전기기술규정을 작성하여 기술의 진보, 사회 정세의 변화에 적응하는 전기안전체제의 확립을 목적으로 1966년 3월 일본전기협회 내에 경제산업관련단체 등의 합의를 토대로 한 전기기술기준조사위원회를 설치하게 되었다

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.1
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• pp.42-54
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• 2018

This study is to establish the traffic volume-based warrants of left-turn lanes in unsignalized intersections based on a risk probability methodology. This study applied a risk probability of a potential rear-end collision between a left-turn vehicle and the immediately following through vehicle. With the shifted negative exponential model and the compound probability theorem, the risk probability can be expressed as the function of directional volumes, opposing volumes and the percentage of left-turns for a two-lane and four-land highway, respectively. The warrants of installing left-turn lanes on unsignalized intersections were developed with the risk probability. The warrants define the total approaching and opposing volumes to encourage a left-turn lane as a function of operating speed, percentage of left-turn, and number of lanes.

• Journal of Korean Society of Transportation
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• v.20 no.4
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• pp.73-82
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• 2002

The influence of bus stops near signalized intersections is one of the important factors which cannot be negligible in the analysis of the capacity of signalized intersections. Absence of consideration of bus bay can reduce capacity and increase the time that the stop of buses block other traveling vehicles. This influence is reflected by the bus blockage adjustment factor in KHCM, but the factor does not consider the course of each bus passing the intersection. Particularly, left turn buses have more influence on the capacity than the other buses and require the minimum length of the road for lane changes. All the existing criteria can apply only to arterial roads on which mostly traffic flows are continuous. And the criteria. which can determine the optimum location and the minimum distance between a signalized intersection and a bus bay, is not prepared and the related study is insufficient. Therefore, a theoretical formula is derived in this study being based on the theories which are avaliable to apply to the situation of signalized intersections.

• Journal of the Korean Institute of Gas
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• v.24 no.2
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• pp.29-35
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• 2020

The Chemical Control Act has revised in 2015 to promote chemical safety, particularly enhancing the standards for the installation and management of hazardous chemical handling facilities. However, in some existing facilities, it was difficult to comply with some facility standards because of lack of land, safety accident possibility during rebuilding. In this study, we attempted to provide a more rational approach of dike standard which was the highest(2017: 117, 2018: 83) complaint for two years(2017~2018, 1,087) by prior study, FLACS simulation, analyze safety management standard and conduct a survey. Therefore, considering the purpose of installing the discharge wall only at existing facilities in operation, additional sensors that can detect chemical leakage and leakage were recognized as an additional alternative to installing and operating closed circuit television (CCTV). This will help the safety and cost aspects of small or medium-sized businesses or small and medium-sized enterprises that cannot secure legal grounds or fail to enforce legal regulations due to economic problems such as construction costs.

• Fire Science and Engineering
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• v.29 no.1
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• pp.19-26
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• 2015

This study covers securing legal systems and institutions regarding the standards for installing fire prevention facilities to prevent fire on wooden architectural heritage. Conflicts among relevant laws were revealed and problems related to fire prevention performance, technical standards, responsibilities, etc. in the process of establishing legal fire prevention equipment and the equipment for self-extinguishing were identified through pondering over current legal systems of fire prevention facilities. To resolve the problems, at least the principle to preserve original shapes of wooden architectural heritage should be secured even though fire prevention facilities are installed and the installation process should be regulated by laws considering features of fire on wooden architectural heritage so that fire prevention performance can be guaranteed. The directions to improve installing system through legalization of design, construction, and audit review institutions and legalization of the technical standards for fire prevention facilities were suggested to guarantee performance when establishing fire prevention facilities for wooden architectural heritage.

• Bulletin of the Korea Photovoltaic Society
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• v.6 no.2
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• pp.7-14
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• 2020

육상태양광 발전원의 단점을 보완하기 위한 수단으로 유휴수면 활용 및 발전량 증대 등의 장점을 앞세우며 수상태양광 발전시스템이 대두되었으나, 설치면적 축소 등의 민원이 지속적으로 제기되며 한국환경정책평가연구원(KEI)에서도 설치면적에 대한 가이드라인이 필요함을 제시하기에 이르렀다. 이에 본 논문에서는 수상태양광 설치 시 제한된 설치면적 내에서 설치용량 및 발전량을 증가시킬 수 있는 새로운 수상 태양광 발전시스템 방법론을 제안하여, 국토의 효율적 및 친환경적 이용으로 「재생에너지 3020 이행계획」을 달성하면서 주민수용성을 증대시킬 수 있는 방안을 모색하고자 한다. 상주 수상태양광 오태2발전소를 대상지로 선정하여 현재 정남향(0°)으로 배치되어 있는 모듈을 기준으로 동일한 모듈 경사각이지만 동서방향(±90°)으로 모듈 방위각을 변경하여 배치한 경우의 비교 분석 연구 결과, 모듈 남향 배치 대비 동서방향 배치 시 설치용량은 13.25%, 발전량은 4.03%가 각각 증가하는 결과를 보였다. 본 연구에는 Sketchup Software를 통한 3D 모델링 및 PVSyst 프로그램을 이용하여 시뮬레이션 비교 분석을 진행하였다.

• Journal of Wetlands Research
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• v.18 no.2
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• pp.183-193
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• 2016

In this study, design and performance of infiltration trench using woodchip as media for treating stormwater from highway were examined through field monitoring. Average reduction efficiency for TSS, COD, BOD, TN, and TP was 88%, 94%, 85%, 80%, and 75% respectively, which is similar to values reported by other studies and design manuals even though direct comparison is not possible due to different monitoring and design conditions. Mean field infiltration rate estimated by measuring the change of water depth inside the observation well was about 40mm/hr, and the time taken for complete infiltration was about 0.83days, which corresponds well with design criteria recommended by MOE guidelines in Korea. In addition, according to analysis of infiltration rate and reduction efficiency, effective rainfall depth applied for determining water quality volume(WQv), 5mm was found to be properly established as design criteria. Woodchip must be considered and included as an alternative media together with crushed rock and gravel into the design guidelines because it has more advantages in terms of weight, porosity, cost, and easiness of management than other media materials.

• Journal of Environmental Impact Assessment
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• v.26 no.3
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• pp.181-194
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• 2017

While over 90 percent of fishways are made up with concrete material, nature-like fishways are started to be established as a form of small stream using natural materials. Recently, the central government in collaboration with a university has proposed a 'Standard Model of Nature-like Fishway' with a purpose to provide as a national design standard of nature-like fishway. This study aims to criticize the proposed design model of nature-like fishway and to propose improvements by examining other international cases. As a result, we found problems and limitations of the proposed design model due to the lack of research and experience about making nature-like fishway in Korea. Especially, for designing bypass nature-like fishway we found the lack of studies about structure management strategies, establishment of rocks or pebbles inside the stream, and natural materials. In this sense, more studies about nature-like fishway design adaptable to our environment need to be conducted. In addition, since the proposed design standard for nature-like fishway has been created based on the limited examination of existing domestic cases, it is desirable to improve the design standard on the basis of hydrological and biological research so that they could be adapted effectively to regional and local contexts.