• 한국도서관정보학회지
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• 제40권1호
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• pp.433-449
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• 2009

본 연구는 초 중등학교 교육현장에서 실시되고 있는 도서관활용수업이 어떠한 저해요인에 의해 활성화되지 않는지 원인을 분석하여 해소방안을 제시하기 위한 연구로 첫째, 도서관활용수업방법의 실증적 개선을 위한 평가 분석의 모형을 인간수행공학모형을 기반으로 재구성하였으며 둘째, 도서관활용수업에 관한 기존 연구의 이론적 토대를 기초로 실태를 파악하고 도서관활용수업의 바람직한 수행목표를 도출하였으며 셋째, 실제 연구대상학교를 중심으로 재구성된 인간수행 공학모형을 적용하여 도서관활용수업을 저해하는 요인을 도출하고 분석기법에 따라 수행요인을 분류하여 저해요인의 해소방안을 제시하였다. 연구의 결과 제시된 도서관활용수업 저해요인의 해소방안으로는 도서관활용수업에 대한 명확한 기대치 제공과 학습목표의 정확한 기술, 도서관활용수업 지원체제 구축, 교사들의 외적 동기 유발 시스템 개발, 다양한 도서관활용수업 프로그램 개발, 그리고 학교장과 일선 교사들의 도서관활용수업에 대한 인식전환 등으로 요약할 수 있으며 학교도서관매체센터가 도서관활용수업의 활성화로 인해 학교교육의 핵심적 역할을 수행할 수 있기를 기대한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2866-2869
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• 2011

Concrete track to increase R&D compared to the existing gravel track 3dB(A) over the growing problem of noise has been raised. Accordingly, the noise reduction solutions for reducing the vibration of the rail that you want to reduce the noise of the concept is to develop the rail web-damper. For this purpose, first, that occurs while driving the train to simulate the vibration modes of rail vibration part of the main draw for this part of the effective vibration reduction to be made, a review of various shapes to try.

• 한국자동차공학회논문집
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• 제1권1호
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• pp.140-148
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• 1993

When a large automobile sheet metal part is formed in a draw die, the binder wrap is first calculated to predict the initial punch contact location for avoiding wrinkles and severe stretching of its thin blank sheet. Since the boundary of a pseudo blank in calculating a binder wrap by means of a geometrically nonlinear finite element method is unknown in advance, an iteration method is generally used. This paper presents an effective iteration method for correction of the pseudo blank in a binder wrap calculation. For the performance test, two examples are adopted. The calculated results for both examples show the good convergence which wasted solutions are obtained in the second iteration step.

• 시큐리티연구
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• 제1호
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• pp.99-122
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• 1997

The final aim of South Korean policies on North Korea and reunification of Korean peninsula is to reflect the direction and the form which South Korean authority has been pursuing. To achieve this aim, we must establish the forms of reunification and continue to prepare for contingency plans while focusing our effort to those policies. In pursuing peaceful reunification, the national security should not be neglected. Moreover, the policing policy is one of the important national security policies. In order to draw up more effective policing policies in a reunified state, this dissertation establishes some preparing measures on policing conditions and expected problems resultion from the reunification of Korean peninsula after studying similar problems in formerly divided countries. The chapter one shows the direction of reunification policy. The chapter two looks some policing problems in formerly divided countries The chapter three studys the expected policing conditions and preparing measures after the reunification of Korean peninsula The chapter four reposes some reasonal solutions for peaceful reunification.

• 한국산업융합학회 논문집
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• 제14권1호
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• pp.37-43
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• 2011

Study of stack effects in the early design stage is the most appropriate moment to draw any problems and provide the right solutions. However, In a real process, The pre-design planning stage review is not thoroughgoing enough to high-rise construction site. Therefore, this study has reviewed by selecting one of inappropriate project [D] to find the possible stack effect alternatives in an early design documentation stage and provide countermeasures to be a foundations of stack effect in the construction stages.

• 기술사
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• 제42권6호
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• pp.31-35
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• 2009

This paper aims to draw out the practical lessons for City Brand as aspect of urban spatial by urban regeneration project in Korea. Image of the City and City Brand is the most important element for the competitiveness of modern cities. This paper discusses the guide line or strategy of City Brand, its current status in Korea. It also examines the present Urban Regeneration in Korea, identifies the problems encountered in implementation, and suggests the solutions for strengthening urban competitiveness such as a City Brand. Also it emphasized that well planned invisible and physical environments, including story and land-mark facilities, are also crucial in making City Brand more attractive and competitive.

• 디지털융복합연구
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• 제9권6호
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• pp.57-70
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• 2011

본 연구는 디지털융합시대 사이버 저작권윤리(cyber copyright ethics)의 수용에 영향을 미치는 요인을 분석하였다. 저작권윤리의 확보는 저작권을 적절히 수용하는지의 여부에 의해 결정되는 것으로 보았다. 관련이론과 문헌검토를 통해 인간-기술-내용-문화(human-technology-contents-culture, HTCoC)의 4가지 요인이 저작권 윤리의 수용에 영향을 미치는 것으로 모형을 구성하였으며, LISREL을 통해 실증적으로 분석하였다. 분석 결과 본 연구에서 제시된 연구모형이 통계적으로 의미가 있는 것으로 나타났다. 우선 저작권의 윤리를 수용하기 위해서는 일정한 주관적 규범을 가지고 있어야 하며, 인터넷매체라는 기술적 한계를 보완하면서, 동시에 저작권문화의 형성이 중요한 것으로 나타났다. 특히 저작권 문화는 저작권윤리의 확립에 있어 매개변수로서 중요한 역할을 하는 것으로 나타났다. 논문말미에는 분석결과를 기초로 정책적 함의를 제시하였다. 결국 건전하고 지속 가능한 저작권보호를 위해서는 저작권윤리의 정착을 통해 저작권의 침해행위가 최소화되어져야 하고, 동시에 체계적인 정책노력을 통해 디지털융합시대의 역기능을 억제하는 것이 필요한 것으로 나타났다.

• Smart Structures and Systems
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• 제21권6호
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• pp.741-749
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• 2018

Structural health monitoring (SHM) systems are necessary to achieve smart predictive maintenance and repair planning as well as they lead to a safe operation of mechanical structures. In the context of vibration-based SHM the measured structural responses are employed to draw conclusions about the structural integrity. This usually leads to a mathematically illposed inverse problem which needs regularization. The restriction of the solution set of this inverse problem by using prior information about the damage properties is advisable to obtain meaningful solutions. Compared to the undamaged state typically only a few local stiffness changes occur while the other areas remain unchanged. This change can be described by a sparse damage parameter vector. Such a sparse vector can be identified by employing $L_1$-regularization techniques. This paper presents a novel framework for damage parameter identification by combining sparse solution techniques with an Extended Kalman Filter. In order to ensure sparsity of the damage parameter vector the measurement equation is expanded by an additional nonlinear $L_1$-minimizing observation. This fictive measurement equation accomplishes stability of the Extended Kalman Filter and leads to a sparse estimation. For verification, a proof-of-concept example on a quadratic aluminum plate is presented.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2011년도 춘계학술발표대회 논문집
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• pp.65-68
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• 2011

The average increase in life expectancy obtained as a gift of modern science cannot hold itself responsible for extended life's happiness. It admits of no argument that the necessity of social preparation for minimizing bad health and longevity of unhappiness to aged people who are in the state of these continuous growth. Recently, because of an aging trend, targeting on elderly housing expected continuous increased demand in housing market, this study is to comprehend it's characteristic and offer implications. For the characteristic of elderly housing, firstly it needs scientific analysis of related theory and analysis of statistical data. Also this study aims to look through and suggest an alternative included the special matters of Korean society with advanced foreign country's analysis of an alternative. And judging from economic characteristics of elderly housing to be presented as an important factor, choices of housing according to economic level are anticipated to show different forms. In future, to supply elderly housing, therefore, the introduction of the concept of housing providing various opportunity of choice is necessary. If studies proceed through expanded alternative, it is judged to be able to draw more varied results in elderly housing. Also, if going along with political dimension study, it is expected to offer more specific and effective solutions of the problem of elderly housing.

• 정보처리학회논문지C
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• 제15C권5호
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• pp.359-366
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• 2008

인터넷과 정보통신기술의 사용이 일반화되면서 인터넷 상에서 중요한 데이터를 안전하게 전송해야 함에 따라 SSL 프로토콜의 사용은 필수요소가 되었다. SSL 프로토콜은 메시지 위/변조 공격과 같은 능동적인 공격에 안전하도록 설계가 되었지만 CipherSuite 설정 변경은 별다른 제약 없이 수정이 가능하다. 공격자가 Client의 시스템의 오작동을 유도하여 CipherSuite 설정을 키 길이가 낮은 대칭키 알고리즘으로 변경한다면 도청하여 데이터를 해독할 수 있다. 본 논문은 키 길이가 낮은 대칭키 알고리즘 설정에 대한 국내 웹사이트의 보안세션 생성 조사 및 CipherSuite 설정 문제점에 대한 해결책을 제시한다.