• 제목/요약/키워드: Theory Development

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문서분류의 이론과 변천에 관한 연구 - 조선조이후 현행 '정부공문서분류'까지 - (A Study on the Theory and Historical Development of Official Document Classification Scheme in Korea - Since Chosun Dynasty to Current Korea Government -)

  • 최정태;이주연
    • 한국기록관리학회지
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    • 제3권2호
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    • pp.1-33
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    • 2003
  • 이 논문은 문서분류에 대한 이론적 근거를 찾아보고, 조선조 이후 구한말을 걸쳐 대한민국 정부수립 이후 지금까지 시행해오고 있는 한국공문서분류의 변천과정을 살펴, 새로 제정 공포될 '기록물분류기준표'와 비교하여, 시행상의 문제점을 검토함으로써 더 나은 분류표로 발전시키는데 목적을 둔다.

Effect of porosity distribution rate for bending analysis of imperfect FGM plates resting on Winkler-Pasternak foundations under various boundary conditions

  • Aicha, Kablia;Rabia, Benferhat;Daouadji, Tahar Hassaine;Bouzidene, Ahmed
    • Coupled systems mechanics
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    • 제9권6호
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    • pp.575-597
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    • 2020
  • Equilibrium equations of a porous FG plate resting on Winkler-Pasternak foundations with various boundary conditions are derived using a new refined shear deformation theory. Different types of porosity distribution rate are considered. Governing equations are obtained including the plate-foundation interaction. This new model meets the nullity of the transverse shear stress at the upper and lower surfaces of the plate. The novel rule of mixture is proposed to describe and approximate material properties of the FG plates with different distribution case of porosity. The validity of this theory is studied by comparing some of the present results with other higher-order theories reported in the literature. Effects of variation of porosity distribution rate, boundary conditions, foundation parameter, power law index, plate aspect ratio, side-to-thickness ratio on the deflections and stresses are all discussed.

도서선택론의 변증법적 연구 (A Dialectical Study of the Book Selection Theory)

  • 윤희윤
    • 한국문헌정보학회지
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    • 제29권
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    • pp.173-204
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    • 1995
  • The purpose of this study is to promote understanding of the book selection theory by researching dialectically of its development process centering on the BSTv(value theory) and BSTd(demand theory). The results of this study are summarized as follows 1. In the period of enlightenment and education, the book selection theory of public libraries was the thesis state of BSTv(d). 2. Antithesis state of BSTv(d), that is, BSTd was raised to real central theory of book selection in the early 20th century. 3. In the 1930-40's, BSTv and BSTd were transformed into balance state or coexistence relations(BSTb $[v(d){\cdot}d(v)$]. 4. After World War II, BSTn(library needs theory) and BSTo(library objective theory) were evoked, and opposed to the existing selection theories. Now, they are developing into BSTbl$[n(d)\cdot\;o(v)\;or\;n(d){\cdot}v(o)]$.

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고전확률론과 중심극한정리에 대한 역사적 고찰

  • 장인홍
    • 한국수학사학회지
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    • 제15권3호
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    • pp.65-74
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    • 2002
  • In this paper we investigate an origin and development of the classical theory of probability. And we also investigate the law of large numbers and central limit theorem which are very important in tile probability theory.

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초기 군론의 역사

  • 홍영희
    • 한국수학사학회지
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    • 제13권2호
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    • pp.33-40
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    • 2000
  • This paper deals with the development of early group theory. We first investigate how the concept of abstract groups has emerged as a generalization of groups of substitution(=permutation groups) which strongly relate the theory of equations.

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Dynamic Web Pages Personalization using Intimacy Theory

  • Kim, Ji-Hwa;Byurn, Hyun-Soo
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 2004년도 e-Biz World Conference
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    • pp.150-153
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    • 2004
  • ■ Face-to-face ■ Object-medium-object ·Digital interaction with Internet ■ Setting Interpersonal Distance · Intimacy theory · Web interface development(omitted)

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총체적 건강을 위한 건축 공간계획의 실험적 복합이론 구축연구 (Formation of a composite theory of planning built environment for holistic health)

  • 이연숙;안소미;임수현
    • KIEAE Journal
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    • 제10권1호
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    • pp.97-107
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    • 2010
  • Although aspiration towards quality of life and holistic health has been growing faster in our modern society and the affordance of health in built environment has been more acknowledged, there has been hardly any development on built environment planning and design theory that can be comfortably and confidently used in creating built environment to promote holistic health. Thereby, this study sets out to experimently formulate a composite theory that explains the relationship between health and built environment. The main methodology of this study is literature review and analysis. Theories that have been applied in other similar fields were chosen to be analyzed by health related perspectives and graft those theories onto holistic health viewpoints to compose a comprehensive theory. Selected theories that were considered useful to be analyzed were Lawton's Environment Press Theory, Carp & Carp's Complementary & Congruence Theory, Valins' Activity-based Design Criteria Theory, Atchley's Continuity Theory, Murtha & Lee's User Benefit Criteria Theory, and Alexander's Pattern Language Theory. Characteristics of these theories were compared by their abstractness and concreteness, and the range of application, and analyzed by a holistic health perspective. Then, these theories were comprehensively structuralized and synthesized as a built environment for health theory. This study has its significance in providing a base to develop healthy built environment research further as it introduced a conceptual framework which explains spatial elements in the health functionality point of view.

Contemporary Chinese Households' Food Away From Home Expenditure and Becker's Household Production Theory

  • Kim Eon-Jin;Chern Wen S.
    • International Journal of Human Ecology
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    • 제6권1호
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    • pp.17-28
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    • 2005
  • This study examines factors determining contemporary Chinese households' food away from home (FAFH) expenditures using Becker's household production theory. Data came from the 2000 urban household survey in Guangdong Province, collected by National Bureau of Statistics (NBS) of China. It was revealed that the contemporary urban Chinese wives also substitute their household work by time-saving product, FAFH, as Becker's household production theory postulated. This suggests the important role of time-value (opportunity cost) in determining household FAFH expenditure across the cultures.