• 한국안전학회지
• /
• 제35권5호
• /
• pp.115-120
• /
• 2020

From 2009 when the CNS facility was installed, the number of reactor failures due to abnormal CNS facility system has increased significantly. Of the total of 19 nuclear reactor shutdowns over the six years from 2009 to 2019, there were 10 nuclear reactor shutdowns associated with the CNS facility, which are very numerous. Therefore, this report intends to analyze the history of nuclear reactor shutdowns due to CNS facility system failure in detail, and to present the root cause and solution to problems. As a result of FMEA implementation of CNS facility system, a total of 76 SPVs were selected. In addition, 10 cases of reactor shutdown history due to CNS facility system abnormalities were analyzed in detailed, and improvement plans for solving the root cause and problem were suggested for each trip history. The results of this study are expected to be able to operate the domestic research reactor and CNS facilities more stably by providing effective measures to prevent recurrence of CNS facilities and reactor trips.

• 한국BIM학회 논문집
• /
• 제10권3호
• /
• pp.12-21
• /
• 2020

From the perspective of the client, the value of information for use in facility management is very low at the point of use. This is because the facility owner, who is a non-professional, cannot accurately request necessary information from the perspective of long-term facility life cycle management. The purpose of this study is to define the information necessary for facility management and to analyze the project operation method to procur this information to the client using BIM. To this end, this study analyzed the role of client and contractor, project delivery process, standards, and submissions in the BIM-based procurement area through USACE Air Force Hospital project case analysis. As a result of the analysis, if the client, who is the subject of facility operation, defines in advance the type and input method of necessary information in the operation stage, the client can receive the BIM optimized for operation from the contractor. The results of this study can be used to establish standards for receiving information necessary for establishment of procurement process and facility management of public institutions considering BIM introduction.

• 한국중재학회지:중재연구
• /
• 제32권4호
• /
• pp.103-141
• /
• 2022

Traditionally, schedule analysis in Korea has been used, mainly through the Critical Path Method, to evaluate the claim for extension of time and/or the amount of liquidated damages for delay. Critical path method, however, cannot identify the delay event and its impact occurred in non-critical path especially in multi facility projects. In multi facility projects that comprise several independent but related facilities or structures, each facility has its own facility critical path the duration of which will be impacted by facility specific critical delays. Thus, only through the non-critical delay analysis along with the critical delay analysis damages not attributable to contractors may be remedied in full. Because all the records and pictures can reveal what has actually happened in post contract review, only the retrospective analysis rather than the prospective analysis based on the assumptions can establish the cause and allocate the each parties' responsibilities appropriately.

• 교육녹색환경연구
• /
• 제16권2호
• /
• pp.19-33
• /
• 2017

본 연구는 교육부, 학교현장, 건축가, 기업 등 관련 기관의 정책수립, 운영계획수립, 시설건립 등 다양한 사업추진과 밀접한 관계가 있는 '안전체험교실 시설모형을 개발'하기 위하여 안전체험교실에 적용하기 위한 필수 교육프로그램을 도출하고 단위공간 조성과 이에 대한 구성요소 및 활용방안을 제시하는데 목적이 있다. 본 연구는 5단계로 내용을 구성하였다. 첫째, 안전교육 수행 및 시설계획 기본방향과 관련한 문헌을 분석하였으며, 둘째, 공간규모, 시설구성 등 공간조성 실태와 운영실태분석을 바탕으로 안전교육 체험교실 실태를 조사하였다. 이를 기반으로 기존 안전체험교실의 장 단점을 분석하고 델파이 조사 및 전문가 참여디자인을 통하여 5가지의 시설모형(안)을 개발하였다. 최종적으로 개발된 안전체험교실 시설모형(안)은 1) 교통안전(보행안전, 차량안전, 지하철안전) 2) 응급처치(응급구조, 신고요령) 3) 재난안전(화재 대피안전, 지진 생활안전) 4) 승강기안전(승강기안전, 에스컬레이터안전) 5) 약물 및 폭력안전(흡연 음주안전, 성폭력안전, 식품안전)에 대한 체험존과 각 영역의 세부 안전체험공간이다. 이러한 과정을 통해 개발된 안전체험교실 시설모형(안)은 학교현장의 수용 가능한 공간적 규모에 따라 각 모형을 조합 또는 분리하여 안전체험교실을 조성할 수 있을 것이다.

• BMB Reports
• /
• 제41권10호
• /
• pp.733-738
• /
• 2008

Although previous studies have implicated a role for TC1 (C8orf4) in cancer cell proliferation, the molecular mechanism of its action is still largely unclear. In this study, we showed, for the first time, that the mRNA levels of TC1 were upregulated by mitogens (FBS/thrombin) and at least partially, through the ERK1/2 signaling pathway. Interestingly, the over-expression of TC1 promoted the $G_1$- to S-phase transition of the cell cycle, which was delayed by the deficiency of ERK1/2 signaling in fibroblast cells. Furthermore, the luciferase reporter assay indicated that the over-expression of TC1 significantly increased Cyclin D1 promoter-driven luciferase activity. Taken together, our findings revealed that TC1 was involved in the mitogen-activated ERK1/2 signaling pathway and positively regulated $G_1$- to S-phase transition of the cell cycle. Our results may provide a novel mechanism of the role of TC1 in the regulation of cell proliferation.

• 교육녹색환경연구
• /
• 제18권3호
• /
• pp.1-15
• /
• 2019

본 연구는 우리나라와 교육제도적 측면에서 많은 유사성이 있으며, 대학입학자원 감소라는 문제를 한국보다 먼저 맞이하여 대응하고 있는 일본과 한국의 국립대학교 시설기준 및 국가수준의 대학시설 관련 정책, 실제 대학 캠퍼스 사례를 조사, 분석하였다. 이를 통해 대학시설에 대한 양국의 국가 차원의 접근방식과 기본 철학의 차이점을 살펴보고, 향후 대학 캠퍼스 계획 수립 시 주요 계획요소 및 개선방향을 파악하고자 하였다. 연구 결과는 다음과 같다. 첫째, 한국은 주요 현안이나 이슈를 중심으로 한 개별 프로젝트별로 대학시설 관련 정책을 추진하는 경향이 있는 반면 일본은 5년마다 국립대학시설 관련 정비계획을 수립하여 종합적이고 중장기적인 계획에 따라 국립대학시설 정책을 추진하는 것으로 나타났다. 둘째, 사례조사를 통해 본 양국의 대학시설 면적의 경우, 일본의 사례조사 대학의 평균 대학시설 면적이 한국의 사례조사 대학의 평균 대학시설 면적에 비해 약 5.6%, 일본의 학생 1인당 대학시설 면적이 한국보다 약 13% 넓은 것으로 나타났다. 일본 대학시설의 전체 연면적도 한국보다 20.7% 정도 크고, 일본의 학생 1인당 대학시설 면적이 한국보다 56.7%가량 넓은 것으로 조사되었다. 반면, 지원시설 중 기숙사의 경우 한국의 기숙사 전체 층 면적이 일본보다 2.5배 넓었고, 기숙사 수용률은 한국이 일본보다 5.6% 높은 특징을 보였다. 셋째, 두 나라의 대학시설 기준 항목과 제도는 비슷하지만 학생정원 산정 방법, 계열구분, 교사 및 교지면적 산정 방식 등은 두 나라 간에 차이가 있는 것으로 나타났다.

• 대한산업공학회지
• /
• 제10권2호
• /
• pp.45-50
• /
• 1984

This paper is concerned with the facility location-allocation problem (FLAP) with multiple objectives. A branch-and-bound procedure is presented to solve the mixed zero-one integer goal programming problem which is to determine facility locations from given candidate locations and to allocate facility capacity to given customer markets simultaneously. A numercial example is given to illustrate this procedure.

• Journal of Microbiology and Biotechnology
• /
• 제12권4호
• /
• pp.699-701
• /
• 2002

The current study demonstrates the ability of the marine cyanobacterium Oscillatoria willei BDU130511 to disinfect raw sewage. Within a holding time of 3 h under laboratory conditions, the organism drastically reduced in the total bacterial and coliform counts at various pH levels, in both unbuffered and buffered sewage, thereby suggesting a potential role for cyanobacteria in wastewater treatment.

• 한국조명전기설비학회:학술대회논문집
• /
• 한국조명전기설비학회 1993년도 추계학술발표회논문집
• /
• pp.51-54
• /
• 1993

In this paper, it is proposed the the SCADA(Supervisory control and Data Acquisition) system in Apartment complex. The proposed SCADA system make use of the computer CRT(Cathod RAy Tube), which automatically observe the Electrical Facility, Elvator Facility, Fire Alarm Facility and process in the real-time data. In order to improve the hardware performance and the information process, the SCADA system composed of master-slave topology and decentralized the supervisory Facility. This system is expected the retrenchment of construction expenditure and the level-up of supervisory execution.

• 한국경영과학회지
• /
• 제15권1호
• /
• pp.23-35
• /
• 1990

A mathematical model for a dynamic capacitate facility location problem is formulated by a mixed integer problem. The objective of the model is to minimize total discounted costs that include fixed charges and distributed costs. The Cross Decomposition method of Van Roy is extended and applied to solve the dynamic capacitated facility location problem. The method unifies Benders Decomposition and Lagrangean relaxation into a single framework. It successively solves a transportation problem and a dynamic uncapacitated facility location problem as two subproblems. Computational results are compared with those of general mixed integer programming.