• 제목/요약/키워드: scale issues

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나노기술을 둘러싼 사회적 쟁점 연구 (A Study on the Social Issues of Nanotechnology)

  • 이영희
    • 과학기술학연구
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    • 제4권1호
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    • pp.59-82
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    • 2004
  • 지난 1990년대 중반 이후부터 나노기술(nanotechnology)이 정보기술 및 생명공학과 더불어 사회에 가장 파급력이 높은 기술로 새롭게 떠오르고 있다. 이에 따라 현재 우리나라를 포함한 많은 나라들이 나노기술의 개발을 위해 엄청난 투자를 아끼지 않고 있다. 그러나 나노기술은 아직은 개발의 초창기 단계임에도 불구하고 이 기술이 사회에 던지는 함의들에 대해서는 현재 매우 많은 논란들이 야기되고 있는 실정이다. 최근 물질이 나노 크기의 입자가 되면 독성이 강해진다는 연구 결과가 나와 커다란 논란을 일으킨 바 있고, 또한 나노기술이 인체 및 환경에 미치는 영향뿐만 아니라 사회적, 윤리적으로도 많은 문제들을 야기할 수 있다는 우려의 목소리들도 제기되고 있다. 나노기술이 군사 기술화할 가능성이 예견되고 있으며, 대량실업사태를 야기할 가능성도 언급되고 있다. 이러한 상황에서 최근에 활발하게 연구되고 있는 나노기술이 과연 사회에 어떠한 영향을 미칠 것으로 전망되고 있는지를 나노기술을 둘러싸고 사회에서 논란이 되고 있는 쟁점들을 통해 체계적으로 살펴보는 것은, 향후 나노기술이 사회적으로 보다 바람직한 방향으로 개발될 수 있도록 정책적으로 개입할 수 있는 근거와 기반을 마련하는 일이라고 할 수 있다. 이상과 같은 문제의식 하에서 이 연구는 최근 급속하게 대두되고 있는 나노기술을 둘러싸고 어떠한 사회적 쟁점들이 형성되고 있는가를 분석한 다음, 나노기술의 바람직한 발전 방향을 모색해 보는 데 그 목적을 두고자 한다.

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중학생들의 전지구적 및 지역적 환경 문제 인식에 관한 연구 (A Study on Middle School Students' Perceptions of Global and Local Environmental Issues)

  • 정민이;소금현;심규철;여성희
    • 한국환경교육학회지:환경교육
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    • 제20권3호
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    • pp.63-75
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    • 2007
  • This paper focused on examining the middle school students' perceptions of characteristics(personal knowledge, human responsibility, impact on personal life, and predicted trend, behavior will) of 10 global and 8 local environmental issues. Subjects(N=516) demonstrated by completing a survey that they perceived the characteristics of issues differently on global and local scales, and to a degree those characteristics are related. First, middle school students' perceptions of global and local environmental issues were above mid-point mainly, and perceptions of local environmental issues were higher than those of global environmental issues. At perceptions of characteristics, They perceived that the personal knowledge of global environmental issues were higher than those of local issues, that the human responsibility effects on global environmental issues more than local environmental issues, that global environmental issues in the future, will be more serious. For each environmental issues, the perception of global warming among the global issues was highest, the perception of yellow dust and air pollution among the local issues was highest. For perceptions of characteristics, behavior will to solve the environmental issues was lower than that of 4 characteristics(personal knowledge, human responsibility, impact on personal life, and predicted trend). Second, there was significant difference of the perceptions of two scale environmental issues for area and sex. It showed that Seoul students' perceptions were higher than Kong-ju students' perceptions according to area, and that girl students' perceptions were higher than boy students' perceptions according to sex. Third, correlations among issues were significant. Especially, it was positive relationship between knowledge and human responsibility, human responsibility and impact on personal human responsibility and predicted trend. Educators and communicators should take into account the perceived characteristics of environmental issues and choose effective information sources and teaching methods to improve students' understanding of human-induced environmental changes.

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과학 빅데이터를 위한 엔디엔 테스트베드 분석: 현황, 응용, 특징, 그리고 이슈 (Analysis on NDN Testbeds for Large-scale Scientific Data: Status, Applications, Features, and Issues)

  • 임헌국;신광천
    • 한국정보통신학회논문지
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    • 제24권7호
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    • pp.904-913
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    • 2020
  • 데이터 볼륨과 복잡도가 빠르게 증가함에 따라 과학 빅데이터를 다루는 데이터 집적 과학은 네트워크를 통해 보다 효과적인 데이터 저장 및 분배를 위한 새로운 기술을 발견하는 것을 필요로 한다. 최근 네임드 데이터 네트워킹 커뮤니티와 데이터 집적 과학 커뮤니티는 함께 과학 실험 빅데이터의 분배 및 관리에 있어서 혁신적인 변화를 꾀하였다. 본 논문 에서는 기후과학 및 고에너지물리 데이터 등과 같은 과학 빅데이터를 위한 현존하는 엔디엔 테스트베드들에 대한 분석이 처음으로 이루어진다. 과학 빅데이터를 위한 엔디엔 테스트베드들을 현황, 엔디엔 기반 응용, 특징 측면에서 묘사하고 토의한다. 마지막으로 과학 빅데이터를 위한 엔디엔 테스트베드 네트워크를 확립함에 있어서, 함정에 빠질 수 있는 다양한 이슈들을 엔디엔 테스트베드들에 대한 묘사 그리고 특징들로 부터 도출하여, 분석 제시한다.

가족주의가치 측정을 위한 기초연구 - 가족주의척도 제작을 중심으로 - (A Study on the Measure of Familism : Familism Scale)

  • 옥선화
    • 대한가정학회지
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    • 제24권3호
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    • pp.143-153
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    • 1986
  • This study is intended to develop a scale to measure familism. Construction of this scale is based on a sample of 448 married males and females living in Seoul. This scale to measure familism is developed by employing a type of item analysis method called correlation analysis. 13 items are selected by correlation analysis, and these are found statistically significant even by analysis based on the criterion of internal consistency. Validity of this scale is evidenced by logical validation, jury opinion and independent criteria. Reliability estimate assessed by Cronbach's alpha coefficients is .759. This scale comprises the following 4 aspects of familism: 1) Support for filial piety and ancestor worship. 2) Integration of individual activities into family ones for achievement of family objectives. 3) Obligation to support individual family members and give them financial assistance when needed, on the assumption that properties such as land, money, etc. belong to family. 4) Mutual aid in psychological and social aspects between parents and married children, and married children and their married siblings. It is concluded that this familism scale represents an improvement on other measure of familism, but that a number of methodological issues remain to be further studied.

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석회석 광산의 파쇄도 관련 발파설계 및 평가 변수들에 대한 고찰 (Investigation of Some Blast Design and Evaluation Parameters for Fragmentation in Limestone Quarries)

  • ;양형식
    • 터널과지하공간
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    • 제20권3호
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    • pp.183-193
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    • 2010
  • 이 논문은 석회석 광산의 발파 중에 일어나는 파쇄도 관련 문제들에 대하여 고찰한 것이다. 먼저 실 규모 발파 시에 발파 결과를 크게 달리 할 수 있는 중요 발파설계변수를 추출하였다. 또 현장에서 간편하게 적용할 수 있는 발파 성과 평가 방법을 제시하였다. 이는 저자들이 시멘트 제조를 위한 석회석 광산에서 다양한 규모로 설계, 시공, 평가 한 경험에 근거한 것이다.

초등학생의 전지구적 및 지역적 환경 문제에 대한 인식 조사 (A Survey on Elementary Students' Perceptions about Global and Local Environmental Issues)

  • 장보라;소금현;심규철;여성희
    • 한국초등과학교육학회지:초등과학교육
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    • 제28권2호
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    • pp.142-153
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    • 2009
  • The purpose of this study was to survey primary students' perception of the global and local environmental issues. The subjects were 853 fifth primary students in Seoul, Busan, Daejeon, Anyang, Gimpo and Cheongju. The results were as follows: First, the perception level of the global environmental issues were global warming (M=3.99), drinking-water pollution (M=3.92), acid rain (M=3.77), yellow dust (M=3.66), ozone depletion (M=3.57), deforestation in tropical areas (M=3.52), desertification (M=3.36), biodiversity (M=3.40) and their perception level of local environmental issues were waste disposal (M=3.87), air pollution (M=3.74), bad smell (M=3.70), noise (M=3.61), river pollution (M=3.57), soil pollution (M=3.44). Second, it was shown that the metropolitan students' perception levels of environmental issues were higher than the non-metropolitan students'. There wasn't a significant difference in the perception levels of two scale environmental issues and characteristics for sex (p>.05). Third, the result of analyzing on the effects between characteristics was that the factors like 'environmental interest' and 'impact on personal life' had a strong influence on the 'behavior will' to solve the global environmental issues, and 'environmental interest' and 'personal knowledge' had a strong influence on the 'behavior will' to solve the local environmental issues. Fourth, the result of analyzing on the characteristics according to the types of the environmental issues showed that 'personal knowledge', 'environmental interest' and 'behavior will' were high in the global environmental issues (p<.01) and 'virtual contamination', 'human responsibility' and 'impact on personal life' were high in the local environmental issues (p<.05).

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Currents in Integrative Biochip Informatics

  • Kim, Ju-Han
    • 한국생물정보학회:학술대회논문집
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    • 한국생물정보시스템생물학회 2001년도 제2회 생물정보 워크샵 (DNA Chip Bioinformatics)
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    • pp.1-9
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    • 2001
  • scale genomic and postgenomic data means that many of the challenges in biomedical research are now challenges in computational sciences and information technology. The informatics revolutions both in clinical informatics and bioinformatics will change the current paradigm of biomedical sciences and practice of clinical medicine, including diagnostics, therapeutics, and prognostics. Postgenome informatics, powered by high throughput technologies and genomic-scale databases, is likely to transform our biomedical understanding forever much the same way that biochemistry did a generation ago. In this talk, 1 will describe how these technologies will in pact biomedical research and clinical care, emphasizing recent advances in biochip-based functional genomics. Basic data preprocessing with normalization and filtering, primary pattern analysis, and machine teaming algorithms will be presented. Issues of integrated biochip informatics technologies including multivariate data projection, gene-metabolic pathway mapping, automated biomolecular annotation, text mining of factual and literature databases, and integrated management of biomolecular databases will be discussed. Each step will be given with real examples from ongoing research activities in the context of clinical relevance. Issues of linking molecular genotype and clinical phenotype information will be discussed.

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EXTENSION OF CFD CODES APPLICATION TO TWO-PHASE FLOW SAFETY PROBLEMS

  • Bestion, Dominique
    • Nuclear Engineering and Technology
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    • 제42권4호
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    • pp.365-376
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    • 2010
  • This paper summarizes the results of a Writing Group on the Extension of CFD codes to two-phase flow safety problems, which was created by the Group for Analysis and Management of Accidents of the Nuclear Energy Agency' Committee on the Safety of Nuclear Installations (NEA-CSNI). Two-phase CFD used for safety investigations may predict small scale flow processes, which are not seen by system thermalhydraulic codes. However, the two-phase CFD models are not as mature as those in the single phase CFD and potential users need some guidance for proper application. In this paper, a classification of various modelling approaches is proposed. Then, a general multi-step methodology for using two-phase-CFD is explained, including a preliminary identification of flow processes, a model selection, and a verification and validation process. A list of 26 nuclear reactor safety issues that could benefit from investigations at the CFD scale is identified. Then, a few issues are analyzed in more detail, and a preliminary state-of-the-art is proposed and the remaining gaps in the existing approaches are identified. Finally, guidelines for users are proposed.

농촌의 환경문제에 관한 사회 문화적 인식의 비교연구 -한국과 영국을 중심으로- (Cross-sociocultural Comparison of Cognition to Environmental Issues in Countryside with Special Reference to UK and Korea)

  • 이관희
    • 농촌계획
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    • 제4권2호
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    • pp.1-7
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    • 1998
  • This research is concerned with a comparative cognition of environmental issues in the countryside between socio-cultural groups. Environmental issues have been con연nod to litter, soil, sewage, wild life, noise, landscape, air, housing development, waste land and pesticides. Socio-cultural groups consisted of urban and countryside people who live in Korea and UK. The method of this study depended upon a standard questionnaire with a semantic scale. The cognition of Korean and British people are significantly different in every respect(p =.0001)except air issues. There is a significant similarity between Korean groups in 10 environmental issues(p > .03). Both Korean groups have generally recognized that their countryside environment has faced serious problems to be solved while British groups have not recognized serious problems in their countryside compared to the Korean groups. To both Korean and British groups the most worrying amongst the 10 environmental issues is the litter problem. In particular, there is a significant difference between British groups in soils(p = .0001), wildlife(p = .0009), air(p = .0001) and waste land(p = .0027). The existing policies (or countryside environment in Korea should be completely reconsidered and in Britain policies towards soils, wild life, air and waste land need to be reviewed. From the results it can be seen that cognition to countryside environment undergoes more cultural influences rather than social ones.

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