• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.308-318
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• 2016

The purpose of this study is to provide the basic data on the development and application of parent education programs and suggest the direction of future studies by analyzing the trends of research articles related to parent education programs. For this, the articles on 'parent education programs' written in Korea from 2004 to 2014 were collected and analyzed. The number of articles analyzed is 202 in total: 41 doctoral theses, 88 master's theses, and 73 academic theses. Firstly, the basic trend of research of parent education program was examined per object and subject. Secondly, the trend of research of the development and implementation of parent education programs was examined by dividing the programs on the basis of the ground for development, object of application, subject, type of program designing, the number and hours of the program, method of conducting the program, program educator, program effects. etc. The results of the analysis of the data made it possible to find out the process of development and implementation of parent education programs conducted in Korea. Such research results were summarized according to the research problems and suggestions for follow-up studies were made on its basis.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.4
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• pp.49-55
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• 2020

Recently, companies are growing by introducing rational and optimized technology for all processes, including design. In particular, the emergence of ICT-based cloud platforms has given rise to solutions that are equipped with all the necessary business services in corporations and schools, affecting technical education and corporate growth that have not been experienced thus far. The virtual reality technology and convergence of HMD devices utilizing this platform is a new turning point in corporate development. Therefore, this study tested the VR functions used in design based on 3DEXP and HMD VR devices. Second, design utilization and this issue were examined through a survey based on the experimental data. The results showed that 3DEXP and HMD VR technologies are closely related in terms of design utilization and have demonstrated their mediated effects through statistical analysis. Nevertheless, it is not enough to generalize some engineering students as a result of the study. On the other hand, the introduction of HMD VR technology is one of the pillars of education and the implementation of virtual reality technology.

• Journal of Korean Society of Steel Construction
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• v.9 no.4 s.33
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• pp.601-609
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• 1997

Bending and vibration results for a laminated plate base on a simplified higher-order plate theory with four variables are presented. Assuming a constant in-plane rotation tensor through the thickness in Reddy's higher-order shear deformation theory it is shown that a simpler higher-order theory can be obtained with the reduction of one variable without significant loss in the accuracy. This simple higher-order shear deformation theory is then used for predicting the natural frequencies and deflection of simply-supported laminated composite plates. The results obtained for antisymmetrical laminated composite plates compare favorably with third-order and first-order shear deformation theory. The information presented should be useful to composite-structure designers, to researchers seeking to obtain better correlation between theory and experiment and to numerical analysts in checking out their programs.

• Journal of Korean Society of Steel Construction
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• v.22 no.3
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• pp.219-228
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• 2010

This paper describes an experimental research on the structural behavior and the ultimate strength of longitudinally stiffened plates subjected to local, distortional, or mixed-mode buckling under compression. The stiffened plate undergoes local, distortional, or interactive local-distortional buckling according to the flexural rigidity of the plate's longitudinal stiffeners and the width-thickness ratios of the sub-panels of the stiffened plate. A significant post-buckling strength in the local and distortional modes affects the ultimate strength of the longitudinally stiffened plate. Compression tests were conducted on stiffened plates that were fabricated from 4mm-thick SM400 steel plates with a nominal yield stress of 235MPa. A simple strength formula for the Direct Strength Method based on the test results was proposed. This paper proves that the Direct Strength Method can properly predict the ultimate strength of stiffened plates when the local buckling and distortional buckling occur simultaneously or nearly simultaneously.

• Proceedings of the KAIS Fall Conference
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• 2006.05a
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• pp.517-521
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• 2006

네트워크 가상현실 시스템은 먼 거리에 떨어진 사용자들 사이에 일관성 있는 가상 세계를 제공하며, 군사, 오락, 건축 등 여러 부분에 응용되고 있다. 본 논문에서는 그 동안 고성능 그래픽 워크스테이션 환경에서 중심적으로 연구되어 왔던 네트워크 가상현실 시스템을 가장 보편적인 플랫폼인 네트워크 환경에서 구현할 때 생기는 3차원 그래픽 처리 성능의 문제 등과 같은 이에 대한 해결책들을 제시하고 미로 환경과 지형 환경에 근거한 가상 세계를 응용 실험 대상으로 삼아 성능을 분석하였다. 실시간으로 상호 작용하는 어플리케이션은 성능을 유지하면서 모든 참가자들에게 동일한 뷰를 보여주는 것이 중요하다. 동일한 뷰를 제공하기 위해 참가자들이 전송하는 이벤트마다 재생 지연 시간을 설정하고, 수신한 이벤트에 대해서는 예정 재생 시각까지 버퍼에 저장하여 모든 참가자들이 동시에 이벤트를 실행하도록 하는 기법이 제안되어 왔다. 그러나 네트워크 트래픽이 동적으로 변하므로 네트워크 상에서 발생하는 전송 지연 시간도 동적으로 변화한다. 그러므로 고정된 재생 지연 시간을 사용할 경우, 네트워크 트래픽 감소에 따라 상호 작용 성능을 향상시킬 수 있는 기회를 상실하게 되고, 네트워크 트래픽 증가에 따라 이벤트 손실률이 크게 증가하게 되어 참가자들 간에 일치하지 않는 뷰를 초래하게 된다. 네트워크 트래픽이 적어서 전송 지연 시간이 짧을 경우 짧은 재생 지연 시간을 적용하여 상호작용 성능을 높여주고, 트래픽이 많은 경우에는 재생 지연 시간을 늘림으로써 상호 작용 성능을 해치지 않는 범위에서 이벤트 손실률을 줄인다. 실험을 통하여 제안하는 기법의 성능을 평가하였으며 그 결과 본 동기화 기법이 고부하(heavily loaded) 네트워크 상태가 지속되는 동안 기존 기법에 비해 참가자들에게 일치된 뷰를 제공할 수 있고, 저부하(lightly loaded) 네트워크 상태에서는 상호 작용 성능을 향상시킬 수 있다는 것을 확인하였다.

• The Transactions of the Korea Information Processing Society
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• v.2 no.5
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• pp.721-732
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• 1995

The IPSE(Integrated Project Support Environment) tool can be seen as a result of an attempt to synthesize the key aspects of language-centered, specific methodology-based and toolkit oriented environments, which are current CASE tools into an organic whole. The IPSE approach based on a process model is regarded as an effective way to implement integrated CASE. The PM-CASE(Process Model based CASE) tool is currently a prototype which draw diagrams describing processes by using a new modeling technique. Attributes related with a task of withen the process model should be defined an saved the database. These attributed are used to retrieve the information of products, and to call the tool related which the task. In this paper, TSEE(Process centered Software Engineering Environment) tools are compared and analyzed. By describing the basic concept, architecture and design of PM-CASE tool, a method of building an process model-based CASE tool is proposed be support an effect software development and management.

• Journal of the Korea Safety Management & Science
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• v.13 no.1
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• pp.11-22
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• 2011

본 논문에서는 자기효능감(Self-efficacy belief)과 산업재해의 관계에 대한 분석을 수행하였다. 먼저 연구의 예비 단계에서는 크게 세 그룹 즉, 현장의 작업자, 현장 및 안전관련 자문업체에 근무하는 안전 관리자, 그리고 산업안전에 관계되는 정부기관 종사자 등을 대상으로 집중면접(Focus group interview)을 실시하였고, 이 집중면접의 결과를 근거로 하여 연구의 본 단계에서 적용될 설문지를 개발하였다. 본 설문지는 산업안전, 산업안전교육프로그램의 평가, 산업안전교육을 향상시키기 위한 방법, 자기만족, 스트레스, 산업재해율, 그리고 인구사회학적요인관련 정보 등과 관련되는 효능감을 평가 하도록 설계되었고, 총 917명(현장작업자: 542명, 안전 관리자: 210명, 정부기관종사자: 165명)에게 설문조사를 시행하였다. 주요 결과를 정리하면 다음과 같다. 첫째, 작업자 그룹의 경우에 안전관련 효능감과 관련한 세 가지 요인(자기관리, 사회적 지원, 환경관리)은 해당 회사의 산업재해율과 부(negative)의 상관관계를 갖는 것으로 나타났다. 둘째, 안전효능감이 높은 현장 작업자는 낮은 현장작업자들과 비교하여 안전관련 수칙을 더 잘 지키고, 자기 인생에 대한 만족도가 더 높으며, 스트레스의 정도가 더 낮은 것으로 나타났다. 셋째, 안전관리자의 경우에 안전효능감은 안전교육 프로그램의 효율성과 정(positive)의 상관관계를 그리고 해당회사의 산업재해율과는 부(negative)의 상관관계를 갖는 것으로 나타났다. 넷째, 정부기관 종사자의 경우에는 경력이 길고 높은 지위에 있을수록 산업안전관리관련 안전효능감이 높은 것으로 나타났다.

• Korean Journal of Optics and Photonics
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• v.14 no.2
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• pp.135-141
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• 2003

In arrayed waveguide grating (AWG) devices whose waveguides were composed of polymer with negative thermo-optic coefficient as overcladding, and silica with positive thermo-optic coefficient as both core and undercladding, we investigated the temperature dependence of the central wavelength using two-dimensional SFDM. From these results, it was confirmed that the temperature dependence can be nearly eliminated by adjusting the refractive index of the cladding and the thickness of the silica thin film upper-loaded on the core. Based on the numerical calculations, the AWG device with polymer overcladding was fabricated. and its optical characteristics were compared with those of the orginal silica AWG device. The introduction of polymer overcladding decreased the temperature dependence of the central wavelength from 0.0130 nm/$^{\circ}C$ to 0.0028 nm/$^{\circ}C$ without deteriorating the insertion loss and crosstalk characteristics.

• Journal of Korea Technology Innovation Society
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• v.12 no.1
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• pp.70-87
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• 2009

This paper studies the efficiency of public sector confronting with increasing oil price, economy crisis and energy-environment problems. In consideration that efficiency of national R&D program has been subjectively evaluated, this paper focuses objective validity by relative efficiency through a comparison among R&D programs in Korea. To implement this study, data published in national reports on R&D programs is used and analyzing method is induced by related books and theories. At the result of Data Envelopment Analysis on the collected data, this paper suggests the way to enhance the efficiency of nuclear R&D program. This study is the first on efficiency of national R&D programs applied DEA methods and is expected to contribute exploring the more efficient way of program management if more sophisticated DEA could be developed and applied.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.49-65
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• 2019

The purpose of this study is to conduct a systematic review of the development and implementation of family resilience programs focusing on published papers in domestic Journals, to provide basic data on development of future family resilience programs, and present research directions. For this, I analyzed the contents of 16 published papers in domestic Journals from 2003 to 2016. The analysis was divided into the performance elements of the program and the development factors. The six sub-areas of program execution factors are subjects of study, research design, program duration and time, facilitator, research method, scales and effect analysis. The three sub-areas of the program development factors are the development base, the purpose of the program development, and the main content of the program. Based on the results of this study, it is necessary to develop a family resilience program considering the various problems of each family and the specific environment in the future.