• Title/Summary/Keyword: 저해요인

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An Improved Register Allocation Technique for ILP Processors (ILP 프로세서를 위한 개선된 레지스터 할당 기법)

  • Sin, Hwa-Jeong;Lee, Gi-Ho
    • Journal of KIISE:Software and Applications
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    • v.28 no.2
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    • pp.201-209
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    • 2001
  • 고성능 마이크로 프로세서들은 성능 향상을 위해 ILP를 지원한다. 병렬성을 극대화시키기 위해서는 많은 성능 저해 요인들을 제거해야 한다. 최근에는 컴파일러의 역할을 증대시켜 이러한 요인들을 줄이기 위한 노력들이 활발히 진행되고 있다. 본 논문에서는 성능 저해 요인인 조건 분기 처리를 위하여 조건 실행과 레지스터 할당을 결합함으로써 메모리로의 대피를 최소화하고 병렬성을 향상시킬 수 있는 개선된 레지스터 할당 알고리즘을 제안한다. 제안한 방법을 적용하여 실험한 결과 간섭 그래프의 에지수가 4.47% 감소되었고 그 결과 요구되는 대피 변수의 수도 21.35% 감소되었다. 그리고 기존의 방법에 비해 19.38%의 성능 향상 결과를 얻었다. 결국 본 레지스터 할당 기법은 조건 실행을 통해 조건 분기 명령을 제거하여 기본 블록 내의 명령어 수를 증가시켜 병렬처리의 기회를 증진시키고 조건 분석을 통해 간섭 그래프의 불필요한 에너지를 제거시켜 보다 효율적인 레지스터 할당을 실현함으로써 제안한 방법의 타당성을 검증하였다.

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주요국의 원자력 미래기술 평가 비교

  • 정환삼;양맹호;함철훈;김현준;이동진
    • Proceedings of the Korean Nuclear Society Conference
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    • 1997.05b
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    • pp.630-635
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    • 1997
  • 본 연구에서는 원자력 선진국들의 원자력 미래기술의 예측 사례를 조사ㆍ분석하고, 이를 우리나라의 사례와 비교하였다. 조사된 미래 원자력 기술예측 및 수준 평가는 국외의 경우 일본, 독일 그리고 프랑스의 사례가 조사되었고 국내에서는 과학기술정책관리연구소와 한국원자력연구소의 사례를 원용하였다. 이들 사례에서 공통적으로 평가하고 있는 기술의 중요성, 실현시기 그리고 제약요인을 비교하였다. 기술평가 결과에 나타난 일반적인 특징은 우선 개별기술의 중요성 평가에서는 공통적으로 방사성패기물처리, 원전내진설계 그리고 원전해체기술 등과 같이 이미 활용중인 기술로서 기존 시설의 안전성을 향상시킬 수 있는 기술의 중요성을 높이 평가하고 있다. 다음으로 실현시기 평가에서는 레이저빔 이용기술과 같이 인접과학 분야의 발전에 따른 시너지 효과가 기대되는 분야의 기술이 2010년 이전에 실현될 것으로 평가하고 있다. 마지막으로 기술개발의 저해요인의 평가는 조사사례 별로 정도의 차이는 있으나 기술적 제약요인이 가장 높고, 다음으로 경제적 제약 그리고 사회적 제약의 순으로 평가하고 있다.

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Physically Disabled Persons' Motives of Participation in the Wheelchair Basketball Club and the Hindrance Factors of Participation (지체장애인의 휠체어농구 동호회 참여 동기 및 저해 요인)

  • Jang, Chul Seung;Kim, Doo Young
    • 재활복지
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    • v.21 no.1
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    • pp.279-299
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    • 2017
  • This study is to investigate what the factors motivating the wheelchair basketball club members to participate in the wheelchair basketball club are and what the factors hindering the members from participating in the wheelchair basketball club are, based on which it has been conducted to explore the effective direction of the management of the wheelchair basketball club for the physically disabled persons in the future. For this study, a survey targeting 180 members currently participating in the wheelchair basketball clubs in Seoul, Gyeonggi, Chungcheong, Gyeongnam, Jeju areas has been conducted and the data gained from 144 respondents of them have been analyzed and its key results of this study are as follows. Firstly, the results of analyzing the physically disabled persons' motives of participation in the wheelchair basketball club show that the respondents have most frequently participated in the wheelchair basketball club by their motives of the pastime-oriented type, which was followed by the health-oriented one, then by the home-oriented one. The results of examining the difference in the motivations for participation based on the degree of participation in the wheelchair basketball club and on the social demographic characteristics of the club members show that there was a significant difference depending on the group by residence, the subjective health condition in the light of the pastime-oriented motives and there was significant difference depending on the age, the occupation, the group by residence, the frequency of participation. Secondly, according to the results of investigating and analyzing the factors hindering the members of the club from participating in the wheelchair basketball club for the physically disabled persons, the structural factors are found to have been the biggest hindrance factor of participation and there was a significant difference depending on the age, the highest level of education, the occupation, the frequency of participation in the club in verifying the difference in the hindrance factors of participation in the club in accordance with the social demographic characteristics of the club members and the frequency of participation in terms of internal factors. Based on the abovementioned research results, some future effective management strategies of the wheelchair basketball club for the physically disabled persons have been discussed.

An content analysis of facilitating and conflicting factors on the Korea's educational uses of emerging technologies and trends (신기술·트렌드의 국내 교육적 활용을 위한 촉진 및 방해 요인 분석)

  • Cha, Hyunjin;Park, Taejung;Kye, Bokyung
    • Journal of The Korean Association of Information Education
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    • v.21 no.5
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    • pp.567-581
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    • 2017
  • The purpose of this study is to analyze the facilitating and conflicting factors on the emerging technologies and trends predicted to impact future education in Korea. To do this, open online questionnaires on 20 emerging technologies and trends derived from a comprehensive literature review were completed by 24 experts in research, policy, schools, and corporate fields, and a content analysis of the collected qualitative data was conducted. As a result of the study, the effectiveness of the content and the maturity of technology were found to be the most important facilitating factors and obstacles. In addition, the potential for innovative teaching and learning methods and motivation, and the maturity and popularity of technology were found to be the main facilitating factors. On the other hand, health problems and negative effects on students in ethical aspects, the lack of research and development, and poor networks and infrastructures in terms of education environment were found to be the main impeding factors of emerging technologies and trends.

The Study on the comparative analysis of EFA and CFA (탐색적요인분석과 확인적요인분석의 비교에 과한 연구)

  • Choi, Chang Ho;You, Yen Yoo
    • Journal of Digital Convergence
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    • v.15 no.10
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    • pp.103-111
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    • 2017
  • This study was performed with a view to examine the nature and difference of EFA(Exploratory Factor Analysis) and CFA(Confirmatory Factor Analysis), and to compare the analysis process and result of EFA and CFA with the same data. The result of empirical analysis was as follows. Meanwhile, p.1, p.3 was removed owing to hampering the convergent validity in EFA, p.3 was removed owing to hampering the discriminent validity in CFA. EFA was reduction process of muti measurement variables to a few factor, but CFA was understanding and confirmatory process of measurement and latent variables' relation. Eventually, this study showed that EFA and CFA used different methology, thus the different outcomes appeared although using the same data, and implicated resonable application of methology according to given data.