• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2009년도 춘계 학술발표회
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• pp.874-882
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• 2009

Continuous monitoring of dam performance is essential to earth and rockfill dams safety because it has to be guaranteed for safety during construction period of course and from initial impounding to a long term maintenance period of dam. Among the 31 dams managed by Kwater at present, the proportion of dams being over 20 years after completion of construction is 42% and it is estimated that the loss rate of monitoring devices will be increase as times. Monitoring devices would be impossible to repair since those are mostly installed in the dam body and foundation. If repairing of monitoring devices is possible, the expenditure will be expensive. Therefore reasonable decision making for abandonment, repair and alternation for loss of monitoring devices would be needed through the establishment of key instrument for earth and rockfill dam safety. In this study the process of monitoring for safety were modeled by failure modes of dams, adverse conditions related to failure mode, indicators of adverse condition and monitoring devices The relationship between failure mode and monitoring devices were systematically analyzed and established and evaluation technique for qualifying the importance of monitoring devices were presented.

• 한국건축시공학회지
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• 제19권4호
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• pp.331-339
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• 2019

도심과 사회기반시설의 확장에 대한 수요로 인해 군사시설의 이전이나 시설의 지하화가 지속적으로 요구되고 있다. 그러나 탄약시설과 같은 시설을 횡단할 때에는 탄약이 우발적으로 폭발하지 않도록 고도의 안전성 평가가 선행되어야 한다. 이에 지중 구조물의 건설을 위한 발파작업이 지상의 탄약시설에 미치는 영향을 분석하기 위해 국방부와 한국철도시설공단간 협의에 의해 진행되는 신안선 복선 전철 설계구간 중 군사 보안구역을 통과하여 건설되는 터널구간에 대해 사례연구를 실시하였다. 폭발현상에 의한 진동의 속도를 수치해석 프로그램인 GTS-NX를 활용하여 예측하였고 문헌조사를 통해 모든 형태의 구조물에 대해서도 안전에 영향을 미치지 않는 0.2cm/sec의 지반진동속도를 안전성 평가기준으로 제시하였다. 본 연구에서 활용된 안전성 평가지표와 절차는 향후 탄약시설을 횡단하는 사회기반시설 계획 시 안전성 평가의 지표로 활용될 수 있을 것이다.

• 한국지반공학회논문집
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• 제35권12호
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• pp.111-121
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• 2019

2019년 개정된 시설물 안전과 유지관리 세부지침을 보면, 기존의 안전성 중심의 시설물 평가에서 내구성과 사용성을 추가한 성능평가로 확대된 바 있다. 이러한 확대는 전 세계적으로 이슈화되고 있는 시설물의 고령화와 시설 이용측면을 반영한 점이기는 하나 실제로 이러한 시설물 평가가 유지관리와 관계된 보수보강과 연계되기 때문에 각 세부성능 간의 상관관계 및 목표 성능의 선정과 연계된 성능보강시 우선순위 결정 등 많은 후속연구가 필요하다. 이 연구에서는 국내 도로시설에 설치된 옹벽을 중심으로 기존의 시설물 평가이력에 대한 분석을 통해 우선적으로 개정된 성능평가에서 적절한 목표 성능을 제시하였다. 또한, 실제 2개의 옹벽에 대해 평가를 수행하고 목표성능의 적절성 여부를 검토하였다. 그리고, 안전성과 내구성만으로 구성된 옹벽의 성능평가에 사용성 부분을 추가할 수 있는 세부 지표를 제시하였다.

• Journal of Information Processing Systems
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• 제16권5호
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• pp.1064-1073
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• 2020

The general situation of system composition and safety management of high-speed railway terminal is investigated and a comprehensive evaluation index system of operational security is established on the basis of railway laws and regulations and previous research results to evaluate the operational security management of the high-speed railway terminal objectively and scientifically. Index weight is determined by introducing interval eigenvalue method (IEM), which aims to reduce the dependence of judgment matrix on consistency test and improve judgment accuracy. Operational security status of a high-speed railway terminal in northwest China is analyzed using the traditional model of fuzzy comprehensive evaluation, and a general technique idea and references for the operational security evaluation of the high-speed railway terminal are provided. IEM is introduced to determine the weight of each index, overcomes shortcomings of traditional analytic hierarchy process (AHP) method, and improves the accuracy and scientificity of the comprehensive evaluation. Risk factors, such as terrorist attacks, bad weather, and building fires, are intentionally avoided in the selection of evaluation indicators due to the complexity of risk factors in the operation of high-speed railway passenger stations and limitation of the length of the paper. However, such risk factors should be considered in the follow-up studies.

• 대한지역사회영양학회지
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• 제26권6호
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• pp.429-440
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• 2021

Objectives: Standardized guidelines and reference points for a food security policy are necessary to guarantee that basic social safety nets work properly. Therefore, this study aimed to explore the basic concepts and detailed dimensions of food security, including the potential relevant indicators, and sought to establish standardized well-being baselines. Methods: A literature review and 14 expert roundtable discussions were carried out to analyze and extract the key concepts of food security. After determining these concepts and detailed dimensions of food security, a conceptual framework was modeled. Then, indicators for each local government that could be monitored and evaluated for each sub-area were suggested. Results: The concept of food security was defined as follows: Individuals should be provided with sufficient, safe, and quality food, which should be accessible to the community and available for use to achieve health and well-being. In addition, food security should be ensured sustainably in a changing environment. Four dimensions were suggested while conceptualizing food security. First, sufficient food, which means sufficient food supply in quantity, quality, and safety. Second, equitable food which includes creating environments in which high-quality and safe food can be purchased at an appropriate price and can be provided regardless of the socioeconomic gap. Third, healthy food which should be provided to promote people's health and happiness through the eco-friendly consumption of food. Fourth, sustainable food, which can be supplied in a sustainable manner and as part of an eco-friendly food system that considers the conservation of natural environments. Conclusions: The basic concepts and detailed areas of food security including the potential indicators proposed in this study, may be useful for developing and implementing various policies and programs to support food and nutrition security in the future.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.329-330
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• 2023

The performance of the construction project is to be evaluated within 60 days of completion, according to relevant laws. It evaluates cost, construction period, design change, re-construction, safety, etc. for each project stage. And the project owners are inputting the evaluation results of the construction work into the construction project information system(CALS). The post-evaluation result information entered in this way can be referred to in the basic design of the construction project by referring to the related contents if there is a similar construction in the future. And It can also be used to predict and respond to the required period and cost by analyzing the accumulated data. In this study, in order to provide reference data that can be used in similar projects in the future, the latest analysis methods are reviewed and the possibility of future application is considered. Accordingly, this study intends to focus on the construction cost part among the indicators such as construction cost, construction period, design change, and re-construction that are currently being dealt with in post evaluation.

• 예술인문사회 융합 멀티미디어 논문지
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• 제9권11호
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• pp.1015-1026
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• 2019

본 연구에서는 노인장기요양시설 평가지표개발과 관련된 선행연구의 평가현장 적용성 및 실효성이 미흡하다는 문제의식하에, 노인장기요양기관(시설급여) 평가의 품질향상을 위한 평가지표를 개발하는 데 연구의 목적이 있었다. 이를 위해 2018년도 노인장기요양기관(시설급여) 평가지표에 대한 분석적 고찰, 일본의 노인특별요양홈 평가지표에 대한 분석, 한국의 노인장기요양시설 종사자와 일본의 노인특별요양홈 종사자를 대상으로 한 평가지표 및 평가체계에 관한 FGI를 실시하였다. 연구결과를 토대로 하여 이용자가 양질의 서비스를 제공 받을 수 있도록 지원하는 측면에서 평가지표를 개발하였다. 노인의 특성, 즉 유지 및 호전되기 어려운 노인성 질환의 특성과 기관운영의 방향 및 투명성, 그리고 종말기 케어의 필요성 등을 반영하였다. 기관운영, 환경 및 안전, 수급자 권리보장, 급여제공과정, 급여제공결과를 포괄하는 43개의 평가지표를 제시하였다. 또한, 중복되고, 불필요한 평가과정을 개선하여 평가의 과정 효율성을 증가시킬 수 있는 4단계 다층평가시스템을 제안하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권9호
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• pp.4669-4675
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• 2012

Objective: Nude mice with orthotopic transplantation of human ovarian epithelial cancer were used to investigate screening criteria for paraneoplastic normal ovarian tissue and the security of the freezing and thawing for ovarian tissue transplantation. Methods: Expression of CK-7, CA125, P53, survivin, MMP-2/TIMP-2 in paraneoplastic normal ovarian tissues were detected by RT-PCR as well as immunohistochemistry. The tissues of the groups with all negative indicators of RT-PCR, all negative indicators of immunohistochemistry, negative expression of CK-7, CA125 and survivin, positive expression of CK-7, CA125 and survivin, cancer tissues and normal ovarian tissues of nude mice were used for freezing and thawing transplantation, to analyze overt and occult carcinogenesis rates after transplantation. Results: When all indicators or the main indicators, CK-7, CA125 and survivin, were negative, tumorigenesis did not occur after transplantation. In addition the occult carcinogenesis rate was lower than in the group with positive expression of CK-7, CA125 and survivin (P<0.01). After subcutaneous and orthotopic transplantation of ovarian tissues, rates did not change (P>0.05). There was no statistical significance among rates after transplantation of ovarian tissues which were obtained under different severity conditions (P>0.05). Conclusion: Negative expression of CK-7, CA125 and survivin can be treated as screening criteria for security of ovarian tissues for transplantation. Immunohistochemical methods can be used as the primary detection approach. Both subcutaneous and orthotopic transplantation are safe. The initial severity does not affect the carcinogenesis rate after tissue transplantation. Freezing and thawing ovarian tissue transplantation in nude mice with human epithelial ovarian carcinoma is feasible and safe.

• Geomechanics and Engineering
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• 제30권3호
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• pp.313-324
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• 2022

With the development of the economy, people's utilization of underground space are also improved, and a large number of cities have begun to build subways to relieve traffic pressure. The choice of subway station construction method is crucial. If an inappropriate construction method is selected, it will not only waste costs but also cause excessive deformation that may also threaten construction safety. In this paper, a subway station construction scheme selects model based on the AHP-fuzzy comprehensive evaluation. The rationality of the model is verified using numerical simulation and monitoring measurement data. Firstly, considering the economy and safety, a comprehensive evaluation system is established by selecting several indicators. Then, the analytic hierarchy process is used to determine the weight of the evaluation index, and the dimensionless membership in the fuzzy comprehensive evaluation method is used to evaluate the advantages and disadvantages of the construction method. Finally, the method is applied to Liaoyang east road station of Qingdao metro Line 2, and the results are verified by numerical simulation and monitoring measurement data. The results show that the model is scientific, practical and applicable.

• 한국건설관리학회논문집
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• 제17권5호
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• pp.108-119
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• 2016

국내 건설재해율은 1992년 도입된 이후 현재까지 PQ에 '환산재해율' 반영 등을 통하여 건설재해 감소 및 건설업 안전관리 체제 구축에 기여하고 있다. 또한, 최근 정부가 도입 추진 중인 종합심사낙찰제에도 '재해율' 및 '사망만인율'이 평가항목으로 구성되어 입 낙찰제도의 그 영향력이 확대되고 있다. 그러나 현행 건설재해율은 입 낙찰제도에 따라 이원화된 기준으로 산정 및 운영되고 있는 실정이므로 현 시점에서 건설재해율 평가지표에 대한 현황 검토와 효율적 운영을 위한 방안이 모색될 필요성이 대두되고 있다. 이에 본 연구에서는 건설업체의 재해관리 실무자를 대상으로 설문조사를 실시하여, 현행 건설재해율의 평가 운영에 대한 현황 검토를 통하여 문제점을 분석하고 그에 따른 개선방안을 제시하였다. 연구 결과, 건설재해율 평가지표의 일원화를 위한 산정기준, 평가대상업체 범위 설정, 건설업 공상처리 개선 측면에서의 개선방안을 제시하였다. 제시된 개선방안을 통해서 보다 효율적이고 합리적인 건설재해율 평가지표의 산정 및 운영이 가능할 것이며, 나아가 건설업체의 자율적인 안전보건 활성화 등을 통한 건설 재해 감소 효과를 기대할 수 있을 것이다.