This study attempted to look into the second language (L2) learners' attitude toward and perception of their L2 pronunciation, and make suggestions for L2 pronunciation teaching within English as an international language (EIL) perspective which is theoretically supported by the variationist approach and multi-competence model of the sociocultural framework. Based on the qualitative analysis of what English as a second language (ESL) learners had discussed through individual interviews, the study showed how they perceived the importance of pronunciation, as well as revealed what kind of difficulties and obstacles they had faced in improving their pronunciation skills. It also indicated the types of efforts and strategies that the learners employed to improve pronunciation skills. The research findings made known the factors driving L2 learners to commit themselves to refining their pronunciation skills. Having considered the unique status of EIL as well as respected the identity of EIL speaker as multi-competent language user, the study made suggestions as to what should be taken care of for L2 pronunciation teaching.

고준위 방사성폐기물 처분장에서 적용하고 있는 다중 방벽의 한 부분인 처분 용기는 벤토나이트 완충재의 팽윤과 지압으로부터 폐기물을 역학적으로 안정하게 보호함과 동시에 일정 기간 방사성폐기물의 유출을 억제하는 역할을 한다. 처분용기의 건전성은 엄격한 재질 선정과 품질 보증을 통해 확보된다. 그러나 용기 제작 과정이나 수송 중 예상치 못한 사건으로 인해 불량 용기가 발생할 가능성이 있다. 본 논문에서는 이와 같은 경우 방사성폐기물로 인해 생태계에 미치는 환경 영향을 연간 개인 선량으로 평가하였다. 연구결과 일부 불량 처분 용기가 발생하더라도 현 평가에 사용한 입력 데이터 범위에서는, 국내 고준위 방사성폐기물 처분 개념이 방사선적 안전성을 확보할 수 있는 것으로 판명되었다.

As the certifications of ISO 9001/1400, OHSAS 18001(not official standard) is increasing, it is needed to construct a integrated management system(IMS) for the efficient operation. This paper deals with the types of integration of management of the various areas of interest -Quality, Environment, Safety and Health. Second, this presents how an integrated management system could be developed, implemented and operated through case studies.