• 한국가스학회지
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• 제23권6호
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• pp.25-32
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• 2019

많은 대량소비 가스시설에서는 천연가스를 가스공사의 배관망을 통해 공급받지 못하여 탱크로리를 통해 액화천연가스(LNG)를 가스공사로부터 공급받아 기화시켜 사용한다. 이러한 시설에서 가스 누출로 인한 인명 또는 재산피해를 방지하기 위하여 주입하는 부취제가, 최초지점과 소비지점들에서 어떤 농도로 분포하는지 분석하는 연구를 수행하였다. 일정한 유량이 흐를 때 가스시설내의 배관위치에 따라 부취농도의 변화를 확인하기 위한 분석이 이루어졌다. 시료채취는 알루미늄 재질의 4.5 L 용기를 진공상태로 만든 후, 부취제가 주입되는 정압기와 가스가 사용되는 소비지점에서 시료를 포집하였다. 포집된 가스시료로부터 가스크로마토그래피(Main Body : Agilent 7890A, Detector : ANTEC 7090)를 이용하여 부취제의 농도를 분석하였다. 안전한 가스시설관리를 위하여 대량수요자 시설의 형태별로 부취농도 관리방법의 정립이 필요한 것으로 판단된다.

• 상하수도학회지
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• 제31권1호
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• pp.63-72
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• 2017

For economic evaluation of integrated operation to sewage facilities, benefit-cost analysis was performed to watershed sewage works project in 7 watershed areas, 156 facilities. In this study, the cost before and after integrated operation was compared and benefits are calculated from the reduction of operators, increasement treated pollution loads, reduction cost through operation convenience, reduction water consumption through effluent reuse, and improvement of life benefit. The result showed that cost was 8,500million won and benefit was 16,747million won, so benefit was 49% higher than cost. B/C analysis result showed that B/C ratio was 1.97 and it is similar to other researches. The benefits of integrated operation included convenience of data management, increase of emergency response, decrease of complains with sewage which was not reflected numerically, so the benefits of integrated operation were expected much greater than this result

• Current Research on Agriculture and Life Sciences
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• 제31권2호
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• pp.139-147
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• 2013

This study analyzed agricultural water distribution systems for the utilization of water demand-oriented water supply systems. Three major TM/TC(telemeter/telecontrol) districts of agricultural water management were selected for analyzing the characteristics of the water distribution systems. In addition, the characteristics of the water supply systems for general water supply zones based on irrigation facilities were also investigated, along with the case of special water management during the drought season. As a result, high annual and monthly variations were observed for the water supply facilities, including the reservoirs and pumping stations. In particular, these variations were more obvious during the drought season, depending on the type of facility. The operations of the pumping stations and weirs were more sensitive to the stream levels than the reservoirs, and the smaller reservoirs were influenced more than the larger reservoirs. Therefore, a water-demand-oriented water supply system should consider the existing general practices of water management in the agricultural sector, and focus on achieving a laborsaving system rather than water conservation in the case of reservoirs. Equal water distribution from the start to the end point of irrigation channels could be an effective solution for managing pumping stations.

• 농촌계획
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• 제25권1호
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• pp.89-97
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• 2019

This study aims to make a revitalizing plan for managing and maintaining of facilities which were installed after the rural development projects. The survey was conducted to examine some issues of operating facilities from the developing plan. There were some factors that should be considered in the establishment stage of the project plan when promoting rural development projects. Among them, the preservation and maintenance of rurality, consistency with business plans, connectivity with local resources, and ease of maintenance were less reflective than its importance. And for each facility, systematic consulting on appropriate scale and operational management plans and detailed planning is needed.. It's also necessary to plan action so that the local community can lead. The current or future rural development project will be succeeded when local governments support to strengthening their local groups or people's abilities.

• 대한환경공학회지
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• 제34권7호
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• pp.439-444
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• 2012

실제운영 중인 40여개 양돈시설을 대상으로 사육밀도, 경영방식, 돈사환기방식, 돈분뇨 처리방식 및 악취저감제 적용특성 등의 관리현황을 파악하고 관능평가 및 악취물질 분석을 통하여 양돈시설에서 발생하는 주요 악취유발물질과 악취발생 특성을 파악하고자 하였다. 양돈시설 악취발생원 중 악취농도(복합악취)는 액비화시설(포기 상태)(평균 4,055배) > 분뇨집수조(평균 913배) > 비육사(평균 506배) > 퇴비화시설(평균 201배) 순으로 조사되었다. 비육사의 경우 슬러리 피트 내부의 돈분뇨 적체높이가 높아질수록, 사육밀도가 높을수록 발생하는 악취수준이 높은 것으로 조사되었으나, 사료첨가 유무에 따른 악취는 큰 차이를 보이지 않았다. TMA를 제외한 9종의 악취물질($NH_3$와 $H_2S$, MM, DMS, DMDS, PA, n-BA, n-VA, i-VA)이 돈사와 분뇨저장조 및 퇴비화시설에서 검출되었으며, 악취기여도가 높은 물질은 $H_2S$, MM 등의 황화계열물질과 n-BA, n-VA, i-VA 등의 휘발성 지방산류이었다. 조사 대상 양돈시설의 97.5%가 주거지역과 300 m 이내에 위치하고 있어 악취민원 발생에 취약한 것으로 조사되었다.

• 한국지리정보학회지
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• 제12권4호
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• pp.158-168
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• 2009

국가와 도시가 급속히 발전할수록 국민생활에 필요한 기반시설물들과 관리 체계는 날로 복잡해지고, 이를 체계적으로 건설하고 유지하는 비용과 노력이 기하급수적으로 증가한다. 본 연구에서는 국가기반시설물 중 도시지상시설물을 무선 센서 네트워크로 관리하기 위해 센서노드를 설치하는 방법을 제시하였다. 먼저, 1차 분석으로 관리 대상 및 방법을 도출하여 센싱 커버리지를 만든 후, 이를 도시지상시설물에 센서노드 설치에 적용하였다. 그리고 2차 분석을 통하여 중복설치 문제의 해결 방안을 제시하였다. 제시된 방법과 수치지도를 활용하여 GIS 프로그램을 구현하였으며, 항공사진과의 중첩을 통해 관리의 방법에 현실성을 향상시켰다. 개발된 프로그램을 사용하여, 한국건설기술연구원 주변 지형에 대해 센서노드 실험을 실시하였다. 그 결과 중복 설치된 센서노드를 약 50% 제거하였으며, 도로를 따라 센서노드가 골고루 배치된 것을 확인할 수 있었다.

• International journal of advanced smart convergence
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• 제5권2호
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• pp.47-52
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• 2016

In this study there was the analysis of government incentives and resident support of public crematoriums, typically identified in Korea as a locally unwanted land use (LULUs), in the metropolitan area. The study looked at what government programs would be potential incentives for allowing the crematoriums to exist in metropolitan communities. Such programs were diverse, with projects focused on: enhancing resident welfare, increasing resident income, funeral facilities and management consignment, community oriented programs, education, funding, and others. Among them, it was found that residents were most in support of programs for enhancing resident welfare and increasing income among residents. In order to resolve the complexities of community support for LULUs and government incentives to shift public perception of cremation, three main policies are proposed. First, it would be necessary to compliment additional project support policies which provide medical services, resident prefered projects, and improvement of substandard housing. Second, it would be important to establish ordinances concretely identifying residential support projects based on community needs assessment. Lastly, it would be of the government's best interest to build policies for resident supported projects that reflect local conditions and the residents' demands for allowing non-preferred facilities to be built, and then to analyze the economic feasibility of these demands.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.545-546
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• 2011

변전설비 고장은 대규모 정전으로 이어져 국가 산업계에 엄청난 손실을 유발할 수 있고, 컴퓨터 등 정보화 기기의 확대 보급으로 순간 정전도 허용하지 않으려는 국민들의 요구가 거세어 지고 있다. 본 논문에서는 장기사용 변전설비에 대한 고장한계점을 도출하고, CBM(Condition Based Maintenance) 관리시스템을 구축함으로써 예방진단 데이터와 고장자료를 체계화하여, 향후 설비 교체기준과 설비의 상태를 기반으로 점검을 수행하도록 토대를 마련함으로써 최소 비용으로 효과적인 고장예방과 나아가 변전설비 활용도를 높임에 그 목적이 있다.

• 한국병원경영학회지
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• 제15권2호
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• pp.1-14
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• 2010

This study tried to analyze about the investment effects on the spent capital and possessed tangible assets of some hospitals during their hospital management. For this analysis purpose, this study used the financial data of 100 hospitals which presented their financial statements to an finance-information company from 2004 to 2006. The analysis was done with PEFR(Percentage of External Funds Required) and Tangible Asset. The FEPR considered the retained interior fund relating to the investment types in the hospital industry. And the Tangible Asset was related to the possession condition of facilities and equipment. The EBIT rate(Earnings before interest and tax to sales) meaning the management performance and tangible asset turnover were used as the measured variables of investment effect. As the result of data analysis, it was identified that the tangible asset like the hospitals's facilities and equipment was not an agent significantly to influence on the management performance(EBIT rate), the eventual goal of hospital management. But, it was identified that there was some differences tangible asset turnover according to each hospital's main characteristics. And at targeting the all sample hospitals, it was found that the management performance(EBIT rate) had some significant effect on the retained earnings rate, a part of source of PEFR.

• 한국농촌건축학회논문집
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• 제11권3호
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• pp.29-36
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• 2009

This study aims at the contribution to introduction of facilities and planning for the promotion of the exchange between city and rural community and the promotion of the rural areas. In order to understand the object of the Setagaya Ward Health Village and the management and the effects of facilities, I investigated the documentation, field work and interviews with the persons related. The Setagaya Ward Health Village has been steadily managing the exchange base facilities and the special enterprises, and operating the manager and promotion committees for the projects. Consequently, many tourism facilities and new enterprises such as the Setagaya-Kawaba Corporation were established in the rural areas and they developed into an active region which has abundant jobs available and attracts about 700,000 visitors a year. In conclusion, it is important to make a main body to manage professionally the future plan of facilities which involve image of the regional future and conform to the law. And the facilities should contribute to the economic development of rural areas in consideration of the environment and culture.