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우리나라 공적연금의 보편적 중층보장체계로의 재구축 방안에 관한 연구
김원섭 ( Kim Wonsub ),강성호 ( Kang Sungho ),김형수 ( Kim Hyungsu ),이용하 ( Lee Yongha ) 한국사회보장학회 2016 사회보장연구 Vol.32 No.4
This study aims to suggest the reform model focused on the issue, “Re-structuring of the National Pension Scheme and the Basic Pension Scheme,” a critical issue of the pension reform in South Korea. The problem of Korean old age income security system can be defined as “inadequate and uncompleted multi-layered security.” This definition indicates the pension systems, which don`t fulfill the original function of the multi-layered security. This system is characterized by multiple problems such as the weak poverty-reducing effect, the inequality in pension provision, and the persistent financial Instability. This study suggests `the universal multi-layered security system` to deal with these problems. This model emphasizes the balanced development of the National Pension Scheme and the Basic Pension Scheme and provides the old age income security through their harmonious division of roles. The main elements of this model are as follows. First of all, the level and the coverage of basic pension are to be improved comprehensively. Secondly, the additional social assistance provision targeted for the elderly is to be newly introduced. Besides, the benefit level of NPS is to be reduced, and its income redistribution effect is to be weakened slightly. According to the estimations of policy effects, it is possible for this model to precisely alleviate poverty and the inequality of pension provision while suppressing the pension expenditure to the appropriate level.
Switching Activity 를 줄이기 위한 Retargetable 스케쥴링 기법
박상현 ( Sanghyun Park ),안민욱 ( Minwook Ahn ),김용주 ( Yongjoo Kim ),김원섭 ( Wonsub Kim ),백윤흥 ( Yunheung Paek ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.2
임베디드 시스템에서 저전력 설계에 대한 요구는 급증하고 있다. 대부분의 전력 소모는 circuit 내의 switching activity 로 인해 발생한다. 이 논문에서는 machine description 을 이용하여 instructiobus 에서의 switching activity 를 줄이기 위한 scheduling 기법들을 제시하고, 그 효과를 Intel XScale processor 상에서 MiBench benchmark 을 통해 확인한다. 명령어들 간의 switching activity 를 최소화 하게끔 명령어를 재배치 함으로써 적은 performance degradation(2.6%)으로 instruction bus 에서의 전력 소모를 최고 12.3%, 평균적으로 10.3%까지 줄일 수 있었다.