• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.1513-1516
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• 2000

인터넷 사용자의 비약적인 증가와 발전에 따라 교육공학에 있어서도 구성주의를 기반으로 한 웹 기반 학습의 역할이 매우 중요한 하나의 교육 분야로서 인식되고 있다. 따라서 웹을 기반으로 한 수많은 학습 사이트가 등장하고 있으며, 이를 이론적으로 정립하기 위한 연구도 계속되고 있다. 본 논문에서는 구성주의 및 웹 기반 학습 이론에 충실하면서, 구조적이고 학습 효과를 높일 수 있는 웹 기반 학습[WBL] 환경을 구현하기 위하여, 기존의 웹 기반 학습 사이트에 대한 분석을 바탕으로 각 모듈 사이에 유기적인 관계를 가지고 학습자의 학습을 관리해 줌으로써, 학습 효과를 최대한 높일 수 있는 웹 기반 학습 환경을 구현하였다. 또한 UML 방법론을 사용하여 재사용 가능한 메시징 컴포넌트를 구현 및 이용함으로써, 웹 환경에서 교사-학습자간, 학습자-학습자간의 적극적인 상호작용을 할 수 있고, 다른 웹 기반 학습 사이트에서도 재사용 할 수 있도록 하였다.

• Composites Research
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• v.12 no.2
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• pp.46-52
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• 1999

In this paper result of an analytical investigation pertaining to the elastic buckling behavior of orthotropic plate under combined in-plane shear and bending forces is presented. The existing analytical solution developed for the isotropic plates is extended so that the orthotropic material properties can be taken into account in the buckling analysis of web plate. For the solution of the problems Rayleigh-Ritz method is employed. Graphical form of results for finding the elastic buckling strength of orthotropic plate under combined in-plane shear and bending forces is presented. Brief discussion on the design criteria for the shear and bending interaction is also presented.

• Journal of Digital Convergence
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• v.13 no.1
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• pp.449-454
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• 2015

This study is done to analyze the social function of social games, propose a development model, and demonstrate predisposing factors and consequences on the model. Therefore, the predisposing variables on social functions of social games are explored through related theory and previous studies to propose the social function developing model of social games. Social function model of social games are classified in detail in terms of emotional ties, open communication, sense of belonging to a community and interaction to derive a measure for social function improvement, to prove social function improvement elements through various social network services and social game theories and to propose a social game development model.

• The Journal of the Acoustical Society of Korea
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• v.34 no.2
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• pp.108-116
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• 2015

An acoustic vector sensor is a device that is capable of measuring the direction of wave propagation and the acoustic pressure. In this paper, the modeling of micro-cantilever sensor for the vector sensor are proposed by consideration of acoustic phenomenon in water. Two models based on unimorph structure are proposed in this paper and corresponding transfer function which describes the relation between input pressure wave and output voltage depending on incidence angle and frequency of pressure wave is derived based on lumped model. It has been shown that very thin and flexible micro-cantilever can be used to measure directly the particle velocity component in water.

• Composites Research
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• v.34 no.2
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• pp.123-128
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• 2021

This paper dealt with multi-scale natural frequency characteristics of wavy CNT (carbon nanotube) reinforced composites by applying the Mori-Tanaka method, rule of mixture, and Halpin-Tsai equation. By compelling benefit of an ad-hoc Eshelby tensor, the load-transfer characteristics of CNT with a waviness implanted in the polymer matrix was determined. The numerical results obtained are in good agreement with those reported by other investigators. Furthermore, the new results reported in this paper show the interactions between CNT weight, waviness ratios and layup sequences of laminated composites. Key observation points are discussed and significant considerations are given in practical designing of CNT reinforced composites.

• Journal of Korean Society of Archives and Records Management
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• v.24 no.3
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• pp.105-129
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• 2024

The research explores methodologies for the development of archival contents to support urban sustainability in the context of intensifying urbanization leading to local extinction. Through an analysis of placemaking theories, the study demonstrates that the sense of place reproduced in archival content can contribute to the formation of a unique local identity. The research proposes a comprehensive approach to constructing and organizing archival content by examining narrative and storytelling methodologies. In addition, it conceptualizes a service model that enhances the interaction between archival content and users by leveraging digital technologies. This study theoretically confirms that archival content can play a role in reconstructing and supporting placeness. It is hoped that this research will contribute to the development of archival strategies that support urban sustainability.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.1910-1913
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• 2006

To solve the interaction of incident monochromatic waves with a bottom-fixed vertical circular cylinder, a numerical analysis by boundary element method is developed using three-dimensional linear potential theory. A numerical analysis by boundary element method is based on Green's theorem and introduce to an integral equation for the fluid velocity potential around the vertical circular cylinder. These numerical results are compared with those of ManCamy and Fuchs(1954) and Williams and Mansour(2002), and it has shown good relationship with their results. This numerical analysis developed by boundary element method will be applied for various offshore structures to be constructed in coastal zones in the future.

• The Journal of the Korea Contents Association
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• v.13 no.2
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• pp.244-253
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• 2013

This research explores the impacts on the recognition of organizational justice for public employees organizational citizenship behavior during the public-sector reformation. Research results are summarized as follows. The first, the job satisfaction and organizational citizenship behavior of public employees relate with procedural justice, interactional justice. but distributive justice not impact. The second interactional justice relations impact organizational citizenship behavior. The third, job satisfaction does the intermediate role between the organizational justice and organizational citizenship behavior of public employees. These result contribute to the explanation of how public employees organizational citizenship behavior work in the public sector reform process.

• Fire Science and Engineering
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• v.21 no.3
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• pp.1-7
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• 2007

This research was conducted through demonstrating method about how high cooperation level between crisis management systems against terror in korea is now, based on both interaction level relating to cooperation relation among organization relationship theory. Through the results of analysis, People in charge against terror were widely recognizing about the need of cooperation between crisis management systems to treat terror effectively. For organic cooperation between organizations, it was suggested the politic implication that it is the most important task to build the sense of values, the behavior about cooperations in the internal phase of crisis management system.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06c
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• pp.307-310
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• 2011

최근 멀티미디어 데이터의 급속한 증가는 그를 대상으로 하는 다양한 컴퓨팅 기술의 발전을 가져왔다. 이러한 기술이 인간과의 상호 작용에서 그 양적 범위와 질적 깊이를 더해감에 따라, 멀티미디어 데이터 특히 그 중 가장 대표적이라 할 수 있는 이미지 데이터를 의미적으로 이해할 수 있는 방법의 필요성이 대두되고 있다. 이미지의 의미를 이해하기 위해 저수준(low level)의 시각 정보만을 이용하는 경우 인간과의 상호 작용에서 의미 격차(conceptual gap) 문제가 발생할 수 있다. 이미지 객체의 시각 정보들을 가공해서 온톨로지(ontology)와 같은 형태의 지식 베이스(knowledge base)와 연동하여 보다 고수준의 의미를 부여하는 경우에는 해당 도메인을 벗어난 새로운 환경에 대해 적응력과 강인함이 떨어진다. 이러한 문제를 근본적으로 해결하기 위해서는 지식 베이스가 없는 상태에서 이미지 데이터의 형태로 주어진 대상 객체로부터 의미를 부여할 수 있는 정보들을 추출해, 구조적으로 지식 베이스를 형성해 나가고 이를 토대로 대상 이미지 객체의 의미를 이해할 수 있는 시스템이 필요하다. 본 논문에서는 발달 심리학 이론들을 바탕으로 시각과 관련된 인간의 생득적 능력을 찾고, 이를 기반으로 우선 주어진 이미지 객체로부터 의미 정보를 효과적으로 추출할 수 있는 방법을 제안한다.