• 한국대기환경학회:학술대회논문집
• /
• 한국대기환경학회 2003년도 추계학술대회 논문집
• /
• pp.51-52
• /
• 2003

A numerical study on PM using a dispersion and deposition model which can analyze for both quantify and quality would not only offer us to understand our environment more easily, but also make it easy that we can make a plan in order to prevent air pollution. The U.S. EPA has proposed the CALPUFF modeling system as a guideline model for regulatory applications involving long-range transport and on a case-by-case basis for near-field applications where. non- steady- state effects which consider situations such as spatial variability in the meteorological fields, calm winds, fumigations, re-circulation or stagnation, and terrain or coastal effects may be important. (omitted)

• 환경영향평가
• /
• 제22권1호
• /
• pp.117-124
• /
• 2013

The introduction of Extended Producer Responsibility(EPR), voluntary agreements and operating were analyzed in this study. The voluntary agreement to participate in the manufacturers, recyclers and management reporting agency data and literature data to verify through research and analysis assessing the performance of the management plan for this system was analyzed. The effectiveness of Voluntary Agreement(VA) on waste analysis system of voluntary agreements with the voluntary agreement of waste reduction savings exemption amount and reductions in greenhouse gases, such as comparison and understanding of business organizations participate waste recycling effects were verified. The Voluntary Agreements as a means of future regulatory system for the ongoing operation of the waste recycling operations and systems effectiveness analysis of the problems appearing in operators and manufacturers suggest ways to improve it.

• 대한안전경영과학회지
• /
• 제22권2호
• /
• pp.7-13
• /
• 2020

Sludge incineration facilities are socially recognized as a hate facility. Therefore, a careful deodorization plan must be established. Therefore, the incineration facility must conduct research on odor ventilation. In this study, a odor diffusion simulation in an incineration facility was conducted and analyzed. In particular, research was carried out on carry-in rooms, pre-treatment rooms, and storage facilities for crops, which are expected to rapidly spread odor. As a result, ammonia 1.62, hydrogen sulfide 0.63, and acetaldehyde 0.73 were found in the transfer room. In addition, pretreatment rooms and stencil storage facilities were found to be lower than regulatory standards.

• 식품과학과 산업
• /
• 제50권2호
• /
• pp.98-109
• /
• 2017

he safety and quality of the food supply are governed by a complex system and food safety management is one of the most important tasks of every government and government agency. Different types of policies have been developed and emplyed to address current and upcoming challegnes. In many counties including South Korea, much effort has been made to reform food safety system including organizational transformation and policy change. Food safety agencies including their history in four countries -U.S., England, Japan, and EU- are reviewd and major policies which have been recently employed by thses four contries are also examined. Additionally, the report of EU food safety and nutiriton in 2050 is introduced and scenarios of future change and policy responses in the report are exmained. Lastly, insight into this issue is given based on review of organizational transformation and major policies in four countries.

• Nuclear Engineering and Technology
• /
• 제54권1호
• /
• pp.414-422
• /
• 2022

Presented in this paper is a methodology for combining a Bayesian statistical approach with Data Quality Objectives (a structured decision-making method) to provide increased levels of confidence in analytical data when approaching a waste boundary. Development of sampling and analysis plans for the characterisation of radioactive waste often use a simple, one pass statistical approach as underpinning for the sampling schedule. Using a Bayesian statistical approach introduces the concept of Prior information giving an adaptive sample strategy based on previous knowledge. This aligns more closely with the iterative approach demanded of the most commonly used structured decision-making tool in this area (Data Quality Objectives) and the potential to provide a more fully underpinned justification than the more traditional statistical approach. The approach described has been developed in a UK regulatory context but is translated to a waste stream from the Fukushima Daiichi Nuclear Power Station to demonstrate how the methodology can be applied in this context to support decision making regarding the ultimate disposal option for radioactive waste in a more global context.

• Korean Chemical Engineering Research
• /
• 제59권2호
• /
• pp.186-190
• /
• 2021

규제당국은 유해 물질 배출을 저감 하는 규제를 시행하면서, 규제 이행에 따른 다양한 활동의 편익/비용 비율로 그 타당성을 제시한다. 그리고 비율 산정과정에서 규제 관련 속성의 중요도 가중치를 반영한다. 그런데, 전문가들은 가중치 설문 응답에서 애매함을 보이고 있으며, 정확한 의사 결정을 위해서는 이를 제거해야 한다. 본 연구에서는 이를 위한 퍼지-계층화 방법론을 이용하여 타당성여부를 적용하고, 이를 2019년 11월 시행된 우리나라의 '배출 저감 계획'규제 타당성 평가에 적용하였다.

• 방사성폐기물학회지
• /
• 제20권4호
• /
• pp.533-540
• /
• 2022

Because of the massive development of nuclear power plants in China in recent years, China is facing the challenge of radioactive waste disposal. China has established complete regulatory requirements for radioactive waste disposal, but it also has encountered problems and challenges in low-level radioactive waste disposal in terms of management, selection of disposal facility sites, and implementation of a site selection plan. Three low-level radioactive waste disposal facilities that have been operated in China are described, and their activity limits, locations, and capacities are also outlined. The connotations of "regional" and "centralized" disposal policies are discussed in light of the characteristics of the radioactive waste. The characteristics and advantages of the regional and centralized disposal policies are compared. It is concluded that the regional disposal policy adopted in 1992 can no longer meet the current disposal needs, and China should adopt a combination of the two disposal policies to solve the problem of radioactive waste disposal.

• 한국압력기기공학회 논문집
• /
• 제19권1호
• /
• pp.6-10
• /
• 2023

Only about 10% of selected equipment in nuclear power plants are monitored by wiring to address failures or problems caused by vibration. The purpose is primarily for preventive maintenance, not for predictive maintenance. This paper shows that vibration monitoring and diagnosis using Industrial 4.0 enables the complete predictive maintenance for all vibrating equipments in nuclear power plants with the convergence of internet of things; wireless technology, big data through periodic collection and artificial intelligence. Predictive maintenance using wireless technology is possible in all areas of nuclear power plants and in all systems, but it should satisfy regulatory guides on electromagnetic interference and cyber security.

• 한국콘텐츠학회논문지
• /
• 제11권2호
• /
• pp.61-68
• /
• 2011

인터넷의 급격한 발달로 인해 수많은 기업에서 다양한 어플리케이션들이 불특정 다수의 사용자에게 개방되어 있는 현재의 비즈니스 환경에서 최근 개인정보의 보안에 대한 이슈가 자주 언급되며, 그 중요도 측면에서 기업의 최우선 과제가 되었다. 얼마 전 정부에서도 정보통신망법 상의 개인정보 보호 강화조치를 법률로 제정하고 이를 다양한 산업군에 적용하고 있다. 기업은 개인정보의 보호를 위해 다양한 방안들을 마련해 이러한 규제를 준수하여, 내부에 관리중인 개인정보에 대해 보안을 강화하기 위해 빠르게 보안 솔루션을 도입하고 있다. 이에 수많은 데이터들이 저장되어 사용되고 있는 DBMS 측면에서 규제를 준수하는 동시에 효과적으로 데이터 보안을 확보하기 위한 방안을 암호화, 접근제어, 감사로 구분하여 각각에 대한 구현방법 및 해당 솔루션들을 비교 및 검토하여 이를 통해 최적의 데이터베이스 보안 방안을 모색할 수 있도록 체크리스트를 구현하였다.

• Corrosion Science and Technology
• /
• 제11권6호
• /
• pp.213-217
• /
• 2012

1) 선진 핵연료주기시설 관련 규제기술과 관련하여 인허가 안전심사의 경험이 없으며, 선진 핵연료주기시설 인허가를 위한 규제체계 및 안전성 평가방법 등의 개발이 필요한 단계이며 관련기기와 제반 공정에서 재료의 내식성을 평가하는 기준마련이 시급하다. 2) 선진 핵주기시설 관련 국내 기술수준을 분석하였고 그 핵심 공정인 전해환원, 전해정련, 전해제련공정의 실험변수를 조사하고 평가 필요항목을 정리하였다. 3) 전해환원과 전해정련공정의 경우 Hot-cell 내에 수분 및 산소가 일정 수준 이하로 유지되는 경우, 재료의 부식은 고려하지 않아도 되나 우라늄 잉곳 제조 공정에서 수냉 코일을 사용하게 되는 경우 물에 의한 부식을 고려해야 한다. 4) 전해 제련공정의 경우 LCC, RAR, Cd 증류공정에서 플랜지의 O-ring을 보호하기 위해 수냉 코일을 사용하게 되는 경우 물에 의한 부식을 고려해야 한다.