• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.12 no.4
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• pp.267-274
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• 2014

The first Low- and Intermediate-Level Waste (LILW) disposal facility with 6 silos has been constructed in granite host rock saturated with groundwater in Korea. A two-dimensional numerical modeling on gas migration was carried out using TOUGH2 with EOS5 module in the disposal facility. Laboratory-scale experiments were also performed to measure the important properties of silo concrete related with gas migration. The gas entry pressure and relative gas permeability of the concrete was determined to be $0.97{\pm}0.15bar$ and $2.44{\times}10^{-17}m^2$, respectively. The results of the numerical modeling showed that hydrogen gas generated from radioactive wastes was dissolved in groundwater and migrated to biosphere as an aqueous phase. Only a small portion of hydrogen appeared as a gas phase after 1,000 years of gas generation. The results strongly suggested that hydrogen gas does not accumulate inside the disposal facility as a gas phase. Therefore, it is expected that there would be no harmful effects on the integrity of the silo concrete due to gas generation.

• Journal of Digital Convergence
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• v.16 no.4
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• pp.371-378
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• 2018

The purpose of this study is to investigate the effect of family relations on facility adaptation of the elderly. In January and February of 2018, a questionnaire survey was conducted on 5 ~ 6 elderly residents of each long-term care facility, and finally 353 data were used for analysis. The main results of the study were as follows: First, the adaptation level of the elderly was high. As for 'maladjustment of group behavior' and 'movement shock', the level of maladjustment is low as 2 points, and adaptation dimension such as 'accept of new residence' and 'making friend' is above the middle level. Second, the influence of family variables was more influential than the demographic characteristics of the elderly and the influence of the facility-related variables. Among them, the closeness with family is the most influential. Therefore, it is suggested that the elderly need active support and efforts to maintain the intimacy with the family from the entrance to the facility and the time after the entrance.

• Journal of the Korea Institute of Building Construction
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• v.14 no.6
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• pp.545-550
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• 2014

The re-locatable military facilities are significant in combat zones with limited infrastructures. Military tents are particularly one of the most essential components in the battlefields, During the offensive operation. This study assesses educational effectiveness of the 4D Building Information Modeling (BIM), which is used to deliver educational information with considering re-locatable military facility construction. Furthermore, the real time for constructing temporary concentration camp was measured, By using analysis of variance associated with the educational effects of the 4D BIM. Statistically, understandability of facility construction using 4D BIM was found to be higher than the conventional educational materials with field manual.

• Journal of the Society of Disaster Information
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• v.8 no.1
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• pp.56-70
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• 2012

Civil defense evacuation facilities currently installed in our country are necessary to survey the operating status. The purpose of this study is to survey on the current facility for civil defense evacuation facilities equipment, management, and problem analysis, research and to build a facility model of the standard formulation through the analysis on the actual condition of the civil defense evacuation facility. The conclusions of this study are as follows. First, the civil defense evacuation facilities are most in Seoul. Second, civil defense evacuation facilities proved to be checked periodically without a systematic management. Many facilities do not have communication facilities appear to be evacuated in an emergency situation is expected to have difficulty in contact with the outside world. Fourth, the old civil defense evacuation facilities are in the center of the metropolitan area.

• Proceedings of the Korean Society of Computer Information Conference
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• 2009.01a
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• pp.337-344
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• 2009

본 연구는 노인복지시설의 성과평가에 미치는 우선순위 결정요인을 파악한다. 이론적 고찰과 선행연구를 통하여 노인 복지시설에 미치는 결정요인을 설정하였다. Saaty의 계층분석과정(Analytic Hierarchy Process; AHP)를 활용하여 각각의 결정요인들에 대한 가중치와 우선순위를 분석하였다. 노인복지는 특정한 분야로 한정되어 있지 않기 때문에 양적인 방법만으로 설명하는 것은 한계가 있다. 따라서 질적 및 양적 방법을 활용할 수 있는 계층분석과정방법과 SPSS프로그램을 이용하여 실증분석을 하였다. 노인복지시설의 분석결과를 요약하면 투입에 대한 상대적 중요도를 분석한 결과 예산이 가장 높게 나왔으며, 산출에 대한 상대적 중요도를 분석한 결과는 운영체계화와 노인복지성이 가장 높게 나타났다. 세부항목 간의 상대적 중요도를 분석한 결과는 결산서와 전문인력이 가장 높게 나타났다. 시설유형별 투입요인은 이용시설과 생활시설 모두 예산이 가장 높게 나타났으며, 산출요인은 이용시설은 운영체계화, 생활시설은 노인복지성이 가장 높게 나타났다. 노인복지시설에 미치는 결정요인에 따른 몇 가지 구체적인 정책적 시사점을 대안으로 제시하였다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2001.11a
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• pp.95-96
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• 2001

인천항은 한국의 주항의 하나로 원자재 수입화물을 취급하는 항만이다. 수입된 원자재 중에서 대두박등의 사료 부원료의 취급 시 강한 바람, 차량의 이동, 저장시설에서의 상하차 등에 의하여 다량의 비산먼지가 발생하여 인천항의 주된 비산먼지 오염원이 되고 있는 실정이다 (Jeon et al., 2000). 일반적으로 사료 부원료의 취급에 의하여 발생하는 비산먼지의 제진을 위하여, 사료 부원료 취급시설에 bag filter에 의한 제진시설이 사용되고 있다. (중략)

• The Safety technology
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• no.172
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• pp.24-25
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• 2012

건설현자의 경우 고령근로자가 많고, 현장 구성원의 이동이 잦기 때문에 사고가 많이 발생할 수밖에 없습니다. 하지만 근로자들이 보호구를 착용하고, 현장에서도 안전시설을 확실히 설치해둔다면 그 피해는 크게 줄일 수 있다고 확신합니다. 사고는 한순간의 방심과 과오를 통해 발생합니다. 현장 관계자 모두가 이 사실을 명심하고 항상 기본을 지키는 습관을 가지시기 바랍니다. 또 현장에서는 질 좋은 보호구와 안전시설을 통해 근로자들의 근원적인 안전을 확보해주시기 바랍니다. 우리(주)기성의 30여명 임직원들도 우리나라 산업현장의 특성에 맞는 제품들을 꾸준히 연구 개발해나가면서, 산업 안전을 지키려는 많은 분들의 발걸음에 동참해나가도록 하겠습니다.

• Prospectives of Industrial Chemistry
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• v.24 no.4
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• pp.52-61
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• 2021

2019년 정부의 '수소경제 활성화 로드맵' 발표 후 수소연료전지 보급에 추진 동력원이 되었고, 2020년 2월 '수소경제 육성 및 수소안전관리에 관한 법률'이 세계 최초로 제정되면서 수소연료전지의 안정적인 보급 확산을 견인하고 있다. 수소안전관리에 의한 법률에 의해 수소용품 4종 및 수소사용시설 1종에 대한 KGS Code 3종(수소추출설비, 고정형 연료전지, 수소연료사용시설)이 2021년 7월 제정되었고, 8월 2종(수전해설비, 지게차용 이동형 연료전지)이 추가 제정되어 2022년 2월부터 수소용품 및 시설에 대한 안전관리가 시작된다. 연료전지의 안정적인 보급을 위해서는 국내에 적합한 안전기준 개발이 필수적이다. 또한 신규 출현되는 제품 및 시설의 개발·보급 시기에 맞추어 안전 기준 개발이 병행되어야 할 것이다. 본고에서는 고정형 및 이동형 연료전지의 국내외 안전기준 분석 및 위험요소 분석 등을 통한 연료전지 안전기준 개발 현황을 소개하고자 한다.

• Journal of Bio-Environment Control
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• v.31 no.2
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• pp.79-89
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• 2022

With the wide use of greenhouses, the working hours have been increasing inside the greenhouse for workers. In the closed ventilated greenhouse, the internal environment has less affected to external weather during making a suitable temperature for crop growth. Greenhouse workers are exposed to organic dust including soil dust, pollen, pesticide residues, microorganisms during tillage process, soil grading, fertilizing, and harvesting operations. Therefore, the health status and working environment exposed to workers should be considered inside the greenhouse. It is necessary to secure basic data on particulate matter (PM) concentrations in order to set up dust reduction and health safety plans. To understand the PM concentration of working environment in greenhouse, the PM concnentrations were monitored in the cut-rose and Hallabong greenhouses in terms of PM size, working type, and working period. Compare to no-work (move) period, a significant increase in PM concentration was found during tillage operation in Hallabong greenhouse by 4.94 times on TSP (total suspended particle), 2.71 times on PM-10 (particle size of 10 ㎛ or larger), and 1.53 times on PM-2.5, respectively. During pruning operation in cut-rose greenhouse, TSP concentration was 7.4 times higher and PM-10 concentration was 3.2 times higher than during no-work period. As a result of analysis of PM contribution ratio by particle sizes, it was shown that PM-10 constitute the largest percentage. There was a significant difference in the PM concentration between work and no-work periods, and the concentration of PM during work was significant higher (p < 0.001). It was found that workers were generally exposed to a high level of dust concentration from 2.5 ㎛ to 35.15 ㎛ during tillage operation.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.17 no.2
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• pp.245-261
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• 2019

Radioactive contaminant from a nuclear facility moves to the ecosystem by run-off or groundwater flow. Among the two mechanisms, contaminant plume through a river can be easily detected through a surface water monitoring system, but radioactive contaminant transport in groundwater is difficult to monitor because of lack of information on flow path. To understand the contaminant flow in groundwater, understanding of the geo-environment is needed. We suggest a method to decide on monitoring location and points around an imaginary nuclear facility by using the results of site characterization in the study area. To decide the location of a monitoring well, groundwater flow modeling around the study area was conducted. The results show that, taking account of groundwater flow direction, the monitoring well should be located at the downstream area. Also, monitoring sections in the monitoring well were selected, points at which groundwater moves fast through the flow path. The method suggested in the study will be widely used to detect potential groundwater contamination in the field of oil storage caverns, pollution by agricultural use, as well as nuclear use facilities including nuclear power plants.