• Title/Summary/Keyword: 미시

Search Result 694, Processing Time 0.029 seconds

역사속 과학인물 - 한국 최초의 물리학자 최규남(1898~1922)

  • Park, Seong-Rae
    • The Science & Technology
    • /
    • v.29 no.11 s.330
    • /
    • pp.67-69
    • /
    • 1996
  • 한국 최초의 물리학자로 꼽는 최규남박사는 1933년 35세때 미국 미시간대학에서 한국인 최초로 물리학박사 학위를 받았다. 평소 '고질콜콜', '불치하문'이라는 별명을 가졌던 최박사는 서울대총장 문교부장관을 지내는 등 평생 과학행정가로서 큰 역할을 해왔고 52년 피난시절 한국물리학회를 창립하여 초대회장을 맡기도 했다.

  • PDF

2003년도 경기전망 - (5)프리프레스 분야

  • Jeong, Sang-Jin
    • 프린팅코리아
    • /
    • s.7
    • /
    • pp.70-71
    • /
    • 2003
  • 2003년도 프리프레스 업계 전망은 흐린 후 차차 갬으로 나타날 것으로 생각된다. 이 같은 전망은 프리프레스 사업은 전통적인 산업이고 인쇄물에 따라 가동률이 늘어나기 때문이다. 인쇄물 증감의 유동성은 우리 산업계와 정치적 환경 등 여러 가지 복잡한 함수관계를 지니고 있으며 적게는 미시경제와 그리고 크게는 거시경제의 영향을 상당히 받을 것이다.

  • PDF

미시 산업정보 D/B 구축방안

  • 한국항공우주산업진흥협회
    • Aerospace Industry
    • /
    • v.75
    • /
    • pp.41-41
    • /
    • 2001
  • 산업자원부와 산업연구원은 대내외 경제환경의 변화에 대한 한국산업 및 기업의 대응능력 수준과 결정요인, 전망 등을 실태조사하고 이에 기초한 산업 및 기업의 경쟁력 강화정책을 수립하기 위해 다음과 같이 산업내부구조에 대한 통계 데이터베이스(DB)를 구축하고자 합니다.

  • PDF

베스트셀러로 본 90년대 문학출판

  • Park, Cheon-Hong
    • The Korean Publising Journal, Monthly
    • /
    • s.253
    • /
    • pp.10-10
    • /
    • 1999
  • 한 시대의 문학베스트셀러는 대중의 상상력과 감수성이 어느 지점에서 작동하는지를 민감하게 반영하는 지표다. 80년대 문학이 '이념'과 '역사'라는 거대서사를 정점으로 움직였다면, 90년대 문학은 '일상'과 '소비문화'의 미시서사로 하강했다. 성과 사랑이라는 고전적 주제 외에 여성의 정체성, 민족주의적 감수성, 흔들리는 부권과 가정에 대한 복고주의 등을 주제로 한 작품들이 베스트셀러 목록을 점령했다.

  • PDF

저구조 Black의 보강특성과 그 이용

  • Baek, Bong-Gi
    • The tire
    • /
    • s.6
    • /
    • pp.29-34
    • /
    • 1967
  • Low-structure black has proved to be a useful addition to the group of reinforcing fillers, allowing greater compounding flexibility and economy. Quite apart from the quality advantages, the volume used to date represents a considerable dollar saving by the rubber industry. Low-structure has also filled a need in a number of critical applications, and promises to become of increasing importance.

  • PDF

A Regional Study for Low-Income Affordable Housing Plan - With a Focus on Lansing Metropolitan Area in Michigan, USA - (미국 지방정부의 저소득층을 위한 부담가능주택 수요분석 및 정책사례 연구 - 미시건주 및 랜싱도시권을 사례로 -)

  • Lee, Jae Choon
    • Journal of the Korean housing association
    • /
    • v.27 no.2
    • /
    • pp.1-9
    • /
    • 2016
  • This paper introduced the affordable housing support programs and system of the State of Michigan and Lansing Metropolitan Area and reviewed the affordable housing plan of Lansing area. This paper also examined their challenges and efforts to solve the affordable housing issues with additional analysis. The affordable housing planning process was also presented with a comprehensive analysis and future prediction of demographic characteristics and housing supply and demand for affordable housing. Especially, the trend and future forecast of the elderly and low-income households who have a significant impact on the affordable housing demand are considered. The U.S. and South Korea have different housing characteristics and situations. A part of the plan and suggestions of Lansing are somewhat unfamiliar, and it is difficult to introduce their suggestions into our policies. However, the affordable housing plan of Lansing Metropolitan Area suggested various solutions to solve the issues, and some of them deserve to be considered on our housing policy making.

Microstructurally Sensitive Fatigue Crack Propagation Behavior (微視組織에 敏感한 疲勞균열進展擧動)

  • 김정규;황돈영;박영조
    • Transactions of the Korean Society of Mechanical Engineers
    • /
    • v.10 no.3
    • /
    • pp.316-325
    • /
    • 1986
  • Characteristics of fatigue crack propagation in martensite-ferrite duel phase steels have been investigated. In low .DELTA.K region, fatigue crack propagation resistance increases with increasing volume fraction of martensite, but the difference of crack propagation resistance resulted from the volume fraction decreases with increasing .DELTA.K. Also, threshold stress intensity factor range .DELTA.K$_{th}$ increases with increasing volume fraction of martensite, But fatigue crack propagation rates of dual-phase steels in terms of .DELTA.K$_{eff}$ are independent to volume fraction of martensite. These phenomena can be explained by the roughness induced crack closure due to crack deflection.n.n.

Analysis of Micromechanical Behavior for Fiber-Reinforced Composites (섬유 보강 복합재료의 미시역학적 거동 해석)

  • Jeong Jae Youn;Ha Sung Kyu
    • Transactions of the Korean Society of Mechanical Engineers A
    • /
    • v.28 no.10
    • /
    • pp.1435-1450
    • /
    • 2004
  • The investigation, which includes the material homogenization and the calculation of local stress concentration of long-fibrous composites in a microscopic level, has been performed to analyze the behavior of fiber-reinforced composites by using finite element method. In order to carry out this study, the finite element models of composites have been generated by the idealized arrays as square and hexagonal-packed type. In the FE analysis, the boundary conditions of micromechanical finite element method(MFEM) have been defined and verified by comparing with the results from multi-cells, and the effective material properties of composites composed of graphite/epoxy have been also evaluated by rules of mixture. For acquiring the relation between the global and local behaviors of composites, the magnifications of strain, stress, and interfacial stress of composites subjected to a longitudinal and transverse loading respectively have been calculated. And the magnifications have been proposed as the stress concentration in the microscopic level at composite material.