• Title/Summary/Keyword: Theory Development

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Recent Advances in Multireference-Based Perturbation Theory

  • Nakano, Haruyuki;Hirao, Kimihiko
    • Bulletin of the Korean Chemical Society
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    • v.24 no.6
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    • pp.812-816
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    • 2003
  • Accurate ab initio computational chemistry has evolved dramatically. In particular, the development of multireference-based approaches has opened up a completely new area, and has had a profound impact on the potential of theoretical chemistry. Multireference-based perturbation theory (MRPT) is an extension of the closed-shell single reference Møller-Plesset method, and has been successfully applied to many chemical and spectroscopic problems. MRPT has established itself as an efficient technique for treating nondynamical and dynamical correlations. Usually, a complete active space self-consistent field (CASSCF) wave function is chosen as a reference function of MRPT. However, CASSCF often generates too many configurations, and the size of the active space can outgrow the capacity of the present technology. Many attempts have been proposed to reduce the dimension of CASSCF and to widen the range of applications of MRPT. This review focuses on our recent development in MRPT.

Development of Mosquito Trap with Effect of Air Cleaning by Using Theory of lnventive Problem Solving (TRIZ) (창의적 문제 해결이론 (TRIZ, 트리즈)를 이용한 공기 정화 기능의 모기 유인 퇴치기 개발)

  • Lee, Kyeong-Won
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.6
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    • pp.155-159
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    • 2002
  • This paper describes the development process of mosquito trap with the effect of air cleaning by using the substance-field analysis and evolution pattern of systems in the theory of inventive problem solving (TRIZ). We g(It the concept of the mosquito trap with mosquito attractants instead of mosquito reluctants such as mosquito stick coil and skin medicine with bad and toxic smell. The number of mosquitos traped by one trap near cattle shed per one night in summer, was over 10 thousands with some effects of air cleaning

A Multi-attribute Index for Assessing Environmental Impacts of Regional Development Projects: A Case Study of Korea (다속성 효용이론을 이용한 다속성 지수의 개발 - 지역개발에 대한 의사결정을 중심으로 -)

  • Kwak, Seung-Jun;Yoo, Seung-Hoon;Shin, Chul-Oh
    • Environmental and Resource Economics Review
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    • v.10 no.3
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    • pp.345-366
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    • 2001
  • Evaluating environmental impacts of regional development projects has critical importance in environmental management aspect. This paper uses multi-attribute utility theory as a basis for obtaining a value index to assess the environmental impacts and applies the theory to a specific Korean case study. To structure and quantify basic values for the assessment, we elicited important attributes, then refined and structured them into a hierarchy. An environmental multi-attribute index is constructed as a multi-attribute utility function, based on value judgments provided by a group of technical experts, policy makers, and a decision-maker at Korean Ministry of Environment. The implications of the results are also discussed. We found that the work and results can provide valuable insights for assessment of environmental consequences.

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Development of a Tool to Support Learning Tasks Analysis Using the Knowledge Space Theory (지식공간론을 활용한 학습과제분석 지원도구의 개발)

  • Jo, Hyeong-Cheol;Lim, Jin-Sook;Kim, Seong-Sik
    • The Journal of Korean Association of Computer Education
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    • v.7 no.1
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    • pp.129-139
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    • 2004
  • This society is rapidly changing into an information-oriented society. As such, revolutionary and efficient teaching methods are needed in school education rather than traditional methods. To be an efficient teaching lesson, teaching plans based on learners' prior knowledge are needed. The knowledge-space theory provides the methods of efficient analysis about learners' status of knowledge. This study designs and implements the support-learning tool based on the knowledge-space theory to increase the efficiency in classroom lessons through the development of various methods of analysis of learners' knowledge status.

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Development of Mosquito Trap with Effect of Air Cleaning by Using Theory of Inventive Problem Solving (TRIZ) (창의적 문제 해결이론 (TRIZ, 트리즈)를 이용한 공기 정화 기능의 모기 유인 퇴치기 개발)

  • 이경원
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.10a
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    • pp.556-559
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    • 1997
  • This paper describes the development process of mosquito trap with the effect of air cleaning by using the substance-field analysis and evolution pattern of systems in the theory of inventive problem solving (TRIZ). By the concept of standard solution about introducing S3 substance, modification of S1 (human) and S2 (mosquito) between first substance SI and second substance S2 with harmful effect, we got the concept of the mosquito trap with mosquito attractants instead of mosquito reluctants such as mosquito stick coil and skin medicine w~th bad and toxic smell. The number of mosquitos traped by one trap near cattle shed per one n~ght in summer, was over 10 thousands with some effects of air cleaning.

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A Conceptual Review of the Korean World View for the Development of Nursing Theory (한국적 간호이론개발을 위한 한국인의 세계관에 대한 개념적 고찰)

  • Lee, Young-Ja
    • Korean Journal of Adult Nursing
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    • v.14 no.4
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    • pp.612-624
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    • 2002
  • 연구목적: 이 연구는 한국의 전통적 문화에 기초한 한국적 간호이론 개발을 위하여 고전문헌과 관련문헌으로부터 한국인의 세계관을 도출함을 목적으로 한다. 연구방법: 한국인의 세계관 도출을 위하여 문헌분석방법을 적용하였다. 연구자료는 조선왕조 500년과 현대까지 한국인의 사상체계에 가장 큰 영향을 끼친 성리학의 근간을 이루는 태극도설과 역경을 중심으로 한 고전문헌과 관련 해설서들로 하였다. 연구결과: 한국인의 세계관의 원리로서 변화의 원리, 통일성의 원리, 인본주의 원리를 도출하였다. 그들 각각의 하위개념으로 1) 변화의 원리에는 생산성, 주기성, 중용, 2) 통일성의 원리에는 유기적 체계, 동시성, 전일주의, 조화, 그리고 3) 인본주의 원리에는 경(敬), 충(忠), 서(恕), 효(孝)을 도출하였다. 결론: 서양의 간호개념이 아닌 한국인의 세계관의 원리와 하위개념을 기초로 한국인의 고유한 건강과 간호개념을 도출함으로서 한국적 간호이론개발에 기여할 수 있다.

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The Human Brain and Information Science: Lessons from Popular Neuroscience

  • Sturges, Paul
    • International Journal of Knowledge Content Development & Technology
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    • v.3 no.1
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    • pp.19-29
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    • 2013
  • Insights from the recent wealth of popular books on neuroscience are offered to suggest a strengthening of theory in information science. Information theory has traditionally neglected the human dimension in favour of 'scientific' theory often derived from the Shannon-Weaver model. Neuroscientists argue in excitingly fresh ways from the evidence of case studies, non-intrusive experimentation and the measurements that can be obtained from technologies that include electroencephalography, positron emission tomography (PET), functional magnetic resonance imaging (fMRI), and magnetoencephalography (MEG). The way in which the findings of neuroscience intersect with ideas such as those of Kahneman on fast and slow thinking and Csikszentmihalyi on flow, is tentatively explored as lines of connection with information science. It is argued that the beginnings of a theoretical underpinning for current web-based information searching in relation to established information retrieval methods can be drawn from this.

Measuring comparison level and comparison level alternatives in marital relationships from the exchange theory perspectives: Development of the comparison Level Scale and the Comparison Level for Alternatives Scale (교환이론적 관점에서 본 결혼관계에서의 비교수준과 대안에 대한 비교수준의 측정 : 비교수준척도와 대안에 대한 비교수준척도의 개발)

  • 윤경자
    • Journal of the Korean Home Economics Association
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    • v.31 no.4
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    • pp.133-140
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    • 1993
  • This study presents the rationale for the development of the Comparison Level Scale(CLS) and the Comparison Level for Alternatives Scale(CLAS). Data from 130 married women who live in the U.S.A. suggest that the CLS and the CLAS are internally consistent and unidimensional. The CLS and the CLAS are based on exchange theory perspectives, particularly, Thibaut and Kelley's theory, on evaluating an individual's comparative processes. The scales provide explanatory as well as descriptive power concerning evaluating an intimate relationship.

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Theory and Knowledge Development for the East-West Nursing (동서간호를 위한 이론 및 지식개발)

  • Kang, Hyun Sook
    • Journal of East-West Nursing Research
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    • v.19 no.2
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    • pp.195-200
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    • 2013
  • Practice evidenced by reliable knowledge is essential for professionals and practical studies. Because nursing is a human science and practical science, theory and knowledge development is an indispensable task to improve nursing. Nursing is a very special paradigm not exactly correlated to Western medicine and Oriental medicine. However, nursing was influenced by on Western medicine at the beginning, and most nursing theories were established western philosophies. Caring is the essence of nursing. To provide qualitative care which satisfies clients, it is required to respect cultures of the clients. Western and Eastern approaches of thinking are coexisting in Korea no, so the needs for developing a nursing model, East-West Nursing, which blends two approaches are increasing. In this paper, concepts of the East-West Nursing, differences between Oriental and Western medicines, and comparison of nursing metaparadigm in prospects from and Western Philosophies were briefly covered to define the East-West Nursing. Strategies and directions to develop the East-West Nursing were also discussed.

A Study of Institutional Theory and Korean FDI (진출국 제도와 해외직접투자 선택에 관한 연구)

  • Lee, Eungo-Sok
    • Asia-Pacific Journal of Business
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    • v.9 no.1
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    • pp.107-121
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    • 2018
  • The purpose of this paper is to explore the determining factors of foreign direct investment(FDI) of Korea by using institutioanl theory. In addition, this study divides institutional facts into the formal and the informal institutions. The empirical test implements multiful regression analysis focuing on korean electronics and automotive industry. The dependent variables are FDI outflow and the independent ones are corruption, econimic freedom, political risk, human development, and culturan distance. According to the empirical results, corruptin and human development have positive effects on Korean FDI outflow. On the other hand, political risks and economic freedom have negative effects on Korean FDI outflow. This results indicate the importance of forman and informal institutional facotrs as determinants of Korean FDI outflow.

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