• Journal of the Korean Institute of Gas
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• v.20 no.6
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• pp.73-79
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• 2016

A temporary LP-gas facility means outdoor LP-gas facilities in public venues such as boothes or food stalls. As temporary LP-gas facility is not an object of mandatory inspection, it is neccesary to develop an effective strategy of safety management. In this study, the direction of safety management strategy is analyzed through a survey and analysis of risk factor about gas facilities in a booth and stall. Some improved directions are suggested such as the use of pipeline and common gas storage. It is expected that the results of this study could help to improve LP-gas efficiency management.

• Korean Journal of Social Welfare Studies
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• v.49 no.1
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• pp.297-334
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• 2018

This study focused on accomplishment of successful life development after discharge a child-care facility even though they had a variety of diversity in hard environment on their own past. Furthermore the research analyzed expression progress and detail information of resilience effect on twenty healthy members of society, who lived theirselves for more than 10 years at out of chid-care centers, based on grounded theory methodology participants. As written in the result section of the study, using the paradigm model analysis showed that it was caused by 'Practical planning for the future', 'Organization of positive meaning' and 'Understanding in another's shoe'. The contextual condition appeared as 'Self examination, 'Seeking anchor as ontology' and 'Natural intimacy among family members'. The centralization phenomenon came in 'Living philosophy of internal stabilities'. The intervention condition appeared as 'Rise up through the world' and 'faith all the world'. The action-interaction showed up as 'Strict self-discipline' and 'Growing up own family'. The consequence appeared as 'Making social family' and 'Being a someone's social mentor'. This research shows discussion in depth based on above analyzed result.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.251-251
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• 2018

도로설계기준(2012)에 따르면 노면 배수시설은 측구, 집수정, 배수관, 배수구(빗물받이, 맨홀) 등으로 구성되며 중앙분리대 배수에서 구조가 방호벽일 경우 원칙적으로 집수정과 종배수관, 횡배수관을 설치하여 노면수를 배수한다. 최근 기후변화에 따른 국지성 집중호우로 교량 배수시설의 배수능력 부족으로 교량의 노후화, 노면의 체수와 수막현상을 야기한다. 교량 설계 시, 교량의 외관은 점배수에 의한 배수불량으로 막힘부에서의 식물생육, 부식, 배수구의 오염 등으로 심미성에 악영향을 미치고 있다. 따라서 국토교통부 도로 배수시설 설계 및 관리지침에서는 기존의 집수정으로 유도하여 배수하는 점배수 형태에서 우수의 지체시간을 저감하기 위해 배수구로 즉시 배수되어 배수 효율을 증가시켜주는 선배수시설을 권장하고 있다. 그러나 선배수 구조의 일반적인 내용만을 기술하고 있으므로 보다 상세한 설계기준이 필요하다. 또한 국내에서는 교면 배수를 위한 횡배수구의 배수능력에 관한 설계 개념은 미국의 빗물받이 설계 개념을 그대로 적용하고 있어서 교량 배수시설의 배수능력 증대를 위한 수치 및 수리실험에 관한 기술적인 자료가 부족한 실정이다. 따라서 도로의 흐름해석 및 선배수를 위한 측구 횡배수관의 흐름개선에 관한 구체적인 연구가 필요한 실정이다. 본 연구에서는 배수로 전반의 유향 분석 및 횡유입관 유입부에서의 상세한 흐름해석과 통수능력을 분석하기 위해서는 수리실험을 통한 연구가 필요한 실정이다. 그러나 최적 횡배수관의 형상 및 간격 설정에 대한 수리실험의 물리적 및 시간적 한계를 극복하기 위해 Fluent 모형(Ansys Workbench 13.0)을 활용한 수치모의를 수행하여 모형의 적용성을 검토하였다. 다상유동 해석을 위해 VOF(Volume of Fluid)방법을 적용하였고, 수치해석 방법으로는 비정상류, 난류 모형으로는 standard ${\kappa}-{\varepsilon}$모형을 적용했다. 도로 형상에 따른 우수유출량을 비교 분석하기 위하여 횡경사는 2%로 고정하고 종경사를 2%로 선정하여 수치모의를 통한 배수능력을 분석하고 설계에 직접적인 적용성을 검토하였다. 횡배수관의 간격변화 및 배수공의 위치 변화 등에 따른 차집량을 분석하였으며, 개략적인 수리실험 결과와 수치모의의 차집율을 비교 및 분석하여 Fluent 모형의 적용성을 확인하였다. 또한, 횡배수관의 유입부에서의 유속 변화 및 유출부에서의 유속이 모의가 가능하므로 배수시설에서 보다 정확한 흐름 해석이 가능하여 보다 적정한 배수능력 분석이 가능할 것으로 판단된다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.5
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• pp.113-118
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• 2021

The study is to provide safety to the occupants from smoke generated by fire occurring at midnight, and to provide a method for providing evacuation safety for a certain period of time even if the occupants are not aware of the fire. The goal of this study is to occur in small accommodation (floor area less than 1,000m²)It is to design a system that can provide ASET for more than 1 hour even if the occupant does not recognize the fire in late-night fire. The basic structure of the smoke-control system applicable to accommodation facilities was designed, and the expected effect was suggested when applied to small-scale domestic accommodation facilities through evacuation scenarios in accommodation facilities to which the system was applied.

• Journal of Digital Convergence
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• v.17 no.8
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• pp.105-113
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• 2019

The purpose of this study is to analyze cyber security risk modeling of critical infrastructure, draw out limitations and improvement measures. This paper analyzed cyber security risk modeling of national critical infrastructure like as electricity sector, nuclear power plant, SCADA. This paper analyzed the 26 precedent research cases of risk modeling in electricity sector, nuclear power plant, SCADA. The latest Critical Infrastructure is digitalized and has a windows operating system. Critical Infrastructure should be operated at all times, it is not possible to patch a vulnerability even though find vulnerability. This paper suggest the advanced cyber security modeling characteristic during the life cycle of the critical infrastructure and can be prevented.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.115-127
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• 2019

This study aims to address the needs and effectiveness of performance measurement system for convenient facilities support project for people with disabilities performed by local government. In addition, it is also to develop performance measurement index based on logic model. The researchers conducted literature review and focus group interview to develop the performance measurement index. Then, through the project managers and related professionals, the researchers tested validity of the measurement. The final measurement consisted of 38 questionnaires in 8 sectors. With this performance measurement system, we expect to establish rationalization of overall disability services. Also the theoretical framework and approach of performance measurement will be applicable to diverse public social service sectors.

• Korean Journal of Construction Engineering and Management
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• v.23 no.1
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• pp.28-36
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• 2022

Since the establishment of a large-scale public experience facility in Korea, the construction project of public experience facilities has recently changed to a form where local governments or local education offices place delivery alone or agreements. In particular, due to the low frequency of delivery and the nature of delivery organization that do not have specialized organizations specializing in Delivery Framework, the role of enhanced Public Owner is needed. In response, this study investigated the current status and operation status of public experience facility construction projects in Korea and derived problems and directions for improvement of the current role of Public Owner. In addition, the study proposed the improvement of the role of public Owner in public experience facilities, which are composed of the promotion stage and functions reflecting the factors and attribute information of the business characteristics.

• The Journal of the Korea Contents Association
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• v.22 no.1
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• pp.261-273
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• 2022

This study aims to analyze whether facilities linked to the inside and outside of the station affect the revitalization of commercial spaces inside the station where individual rental stores are clustered. Rent, which can replace sales, was set as the determining factor for revitalization. In addition to the variables related to sales, culture, office work/residential, public institutions, and transportation facilities, the independent variables were the number of daily passengers, which is a location factor of the station, and the product sales business, which accounts for the largest number of industries in the commercial space inside the station. As a result of regression analysis, it was proved that rent has an effect on product sales business, linked sales facilities, transportation facilities, and the number of passengers on board. These results indicate that the formation of sales products that can increase purchasing power and the direction of facility linkage that can increase the inflow population into the station are needed to revitalize commercial spaces in the station. In this study, the establishment of a living-friendly SOC for residents' convenience daily life was suggested as a policy management plan for stations with a high vacancy rate due to reduced vitalization.

• Journal of the Korea Convergence Society
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• v.13 no.1
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• pp.131-139
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• 2022

This study investigated the effects of job satisfaction on job commitment and turnover factors of physical therapists working in residential facilities for the disabled. Job satisfaction (23 questions) and organizational commitment (11 questions) were investigated for 122 physical therapists working in residential facilities for the disabled. As a result of the study, the job satisfaction of physical therapists working in residential facilities for the disabled was 3.16, and the level of organizational commitment was 3.29, which was moderate. Among job satisfaction, higher self-esteem, superior and welfare system, communication, and satisfaction with colleagues showed higher organizational commitment. Self-esteem, supervisor and welfare system, communication, and co-worker factors were found to affect emotional commitment. Physical therapists working in residential facilities for the disabled pointed out dissonance between their boss and colleagues, poor working environment, salary problems, and excessive work as factors for turnover. In order to increase organizational commitment of physical therapists working in residential facilities for the disabled, it seems that respect for their work and improvement of relationships with superiors and colleagues are necessary.

• Journal of Wetlands Research
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• v.21 no.4
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• pp.321-333
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• 2019

A primary aspect of low impact development (LID) design that affects performance efficiency, maintenance frequency, and lifespan of the facility is the type of filter media as well as the arrangement or media profile. Several LID guidelines providing media specifications are currently available and numerous studies have been published presenting the effectiveness of these systems. While some results are similar and consistent, some of them still varies and only a few focuses on the effect of filter media type and arrangement on system performance. This creates a certain level of uncertainty when it comes to filter media selection and design. In this review, a synthesis of filter media specifications from several LID design guidelines are presented and relevant results from different laboratory and field studies are highlighted. The LID systems are first classified as infiltration or non-infiltration structures, and vegetated or non-vegetated structures. Typical profiles of the media according to classification are shown including the different layers, materials, and depth. In addition, results from previous studies regarding the effect of filter media characteristics on hydraulic and hydrologic functions as well as pollutant removal are compared. Other considerations such as organic media leaching, clogging, media washing, and handling during construction were also briefly discussed. This review aims to provide a general guideline that can contribute to proper media selection and design for structural LIDs. In addition, it also identifies opportunities for future research.