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        검색결과 9

        2.
        2022.10 구독 인증기관·개인회원 무료
        The IAEA states that in the event of sabotage, nuclear material and equipment in quantities that can cause high radiological consequences (HRC), as well as the minimum systems and devices necessary to prevent HRC, must be located within one or more vital areas. Accordingly, in Article 2 of the ACT ON PHYSICAL PROTECTION AND RADIOLOGICAL EMERGENCY, the definition of the vital area is specified, and a nuclear facility operator submits a draft to the Nuclear Safety and Security Commission to establish vital areas and must obtain approval from Nuclear Safety and Security Commission. Since the spent fuel pool and new fuel storage area are areas where nuclear material is used and stored, they can be candidates for vital areas as direct targets of sabotage. The spent fuel pool is a wet spent fuel storage facility currently operated by most power plants in Korea to cool and store spent nuclear fuel. Considering the HRC against sabotage, it is necessary to review whether sepnt fuel pool needs to establish a vital area. In addition, depending on the status of plant operation during the spent fuel management cycle, the operation status of safety systems to mitigate accidents and power system change, so vital areas in fuel handling building (including spent fuel pool) also need to be adjusted flexibly. This study compares the results of the review on whether the essential consideration factors are reflected in the identification of essential safety systems and devices to minimize HRC caused by sabotage in the spent fuel storage system with the procedure for identifying the vital area in nuclear power plants. It was reviewed from the following viewpoints: Necessity to identify necessary devices to minimize the radiation effects against sabotage on the spent fuel pool, Review of necessary elements when identifying vital areas to minimize the radiation effects of spent fuel pool against sabotage, Necessity to adjust vital areas according to the spent fuel management cycle. The main assumptions used in the analysis of the vital area of the power plant need to be equally reflected when identifying vital areas in spent fuel pool. And, the results of this study are for the purpose of minimizing the radiological consequences against sabotage on the spent fuel storage system including the spent fuel pool and used to establish regulatory standards in the spent fuel storage stage.
        3.
        2022.05 구독 인증기관·개인회원 무료
        To rationalize the protection of spent nuclear fuel transport storage cask, we intend to investigate the status of domestic and foreign safety regulations and related technologies to develop sabotage scenarios and analyze the protection performance and radiation impact of transport storage cask. It is essential to conduct an aircraft collision safety evaluation on spent nuclear fuel transportation and storage casks in Korea due to changes in laws and regulations related to nuclear power plant design and demand for enhanced safety. Domestic and foreign research on the protection performance of spent nuclear fuel transport storage cask was based on 9.11 events, and the results of all studies show that the speed of the aircraft and leakage of nuclear materials are insignificant. The Sandia National Laboratory (SNL) calculates Aerosol emissions from spent fuel damage in the event of sabotage and calculates Source Term based on the Durbin-Luna model. In this paper, radiation sensitivity analysis was performed due to damage to the carrier according to the size of the accident, assuming that there was a hole enough to basket from the external shell among the collision scenarios identified for domestic cask models.
        4.
        2022.05 구독 인증기관·개인회원 무료
        In accordance with the Enforcement Decree of the Act on Physical Protection and Radiological Emergency, operators of Nuclear Power Plants (NPP)s must conduct full cyber security exercise once a year and partial exercise at least once every half year. Nuclear operators need to conduct exercise on systems with high attack attractiveness in order to respond to the unauthorized removal of nuclear or other radioactive material and sabotage of nuclear facilities. Nuclear facilities identify digital assets that perform SSEP (Safety, Security, and Emergency Preparedness) functions as CDA (Critical Digital Assets), and nuclear operators select exercise target systems from the CDA list and perform the exercise. However, digital assets that have an indirect impact (providing access, support, and protection) from cyber attacks are also identified as CDAs, and these CDAs are relatively less attractive to attack. Therefore, guidelines are needed to select the exercise target system in the case of unauthorized removal of nuclear or other radioactive material and sabotage response exercise. In the case of unauthorized removal of nuclear or other radioactive material, these situations cannot occur with cyber attacks and external factors such as terrorists must be taken into consideration. Therefore, it is necessary to identify the list of CDAs that terrorists can use for cyber attacks among CDAs located in the path of stealing and transporting nuclear material and conduct intensive exercise on these CDAs. A typical example is a security system that can delay detection when terrorists attack facilities. In the case of sabotage exercise, a safety-related system that causes an initiating event by a cyber attack or failure to mitigate an accident in a DBA (Design Basis Accident) situation should be selected as an exercise target. It is difficult for sabotage to occur through a single cyber attack because a nuclear facility has several safety concepts such as redundancy, diversity. Therefore, it can be considered to select an exercise target system under the premise of not only a cyber attack but also a physical attack. In the case of NPPs, it is assumed that LOOP (Loss of Offsite Power) has occurred, and CDA relationships to accident mitigation can be selected as an exercise target. Through exercise on the CDA, which is more associated with unauthorized removal of nuclear or other radioactive material and sabotage of nuclear facilities, it is expected to review the continuity plan and check systematic response capabilities in emergencies caused by cyber attacks.
        5.
        2021.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구의 목적은 피부전문가들이 경험한 고객 불량행동이 감정부조화 및 서비스 사보타주에 미치는 영향에 관한 연구이다. 연구의 목적달성을 위해 서울. 경기지역 피부전문가 383명을 연구대상으로 선정하였다. 분석방법은 빈도분석, 요인분석, 신뢰도분석, 상관관계분석, 다중회귀분석을 실시하였으며, 이 와 같은 연구절차를 거쳐 다음과 같은 연구결과를 도출하였다. 고객 불량행동이 감정부조화에 정적(+)상관 관계가 나타났고, 감정부조화의 감정억제가 서비스사보타주에 영향을 미치는 것으로 나타났다.
        4,000원
        9.
        2018.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 항공기 객실승무원이 지각한 고객 불량행동, 정서적 고갈, 비인간화, 서비스 사보타주와 관련된 문헌연구를 바탕으로 고객 불량행동이 정서적 고갈, 비인간화, 서비스 사보타주에 미치는 영향을 구명하고자 하였다. 이를 위한 실증분석을 위해 항공기 객실승무원을 대상으로 설문지를 배포하여 자료를 수집하였으며, 구조방정식 모형을 활용해 가설을 검증하였다. 따라서 본 연구에서는 항공기 객실승무원이 지각한 고객 불량행동, 정서적 고갈, 비인간화, 서비스 사보타주와 관련된 기존연구를 토대로 이들 변수간의 관계를 밝힘으로서, 항공기 객실승무원의 직무수행 능력과 조직유효성을 높이기 위한 관리방향을 고찰하고 항공사의 경쟁력 확보를 위한 경영전략을 제안하는데 그 주된 목적을 두고 있다. 실증분석 결과, 제시된 9개의 가설 중 8개가 유의한 것으로 검증되었으나, 몇 가지 한계점을 드러내고 있어 향후 다른 업종에 동일하게 적용할 수 있도록 연구범위를 확대하고, 항공기 객실승무원의 근무여건과 환경 등 여러 가지 상황을 고려한 다양한 변수들에 대한 연구도 같이 이루어져야 할 것으로 판단된다. 또한 엄격한 척도순화과정에도 불구하고 몇몇의 척도는 제거되어 지는 등 신뢰성 측면에서 다소 만족스럽지 않는 것으로 나타났다. 향후 연구에서는 이를 보완하기 위하여 척도의 신뢰성과 타당성을 증대시켜야 할 것으로 사료된다.
        5,400원