• Journal of the Korea Convergence Society
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• v.10 no.8
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• pp.83-95
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• 2019

The purpose of this study was to comprehensively investigate predictive factors influencing on geriatric depression of the elderly by applying the Andersen's Behavioral Model of Health Service Use,. The research data was focused on the final analysis of 3,585 elderly population aged 65 or older among 21,724 participants in the 6th (2013-2015) Korea National Health and Nutrition Examination Survey. Hierarchical logistic regression analysis was conducted to multivariate analysis method of the variables for possible depression by the Andersen's Behavioral Model of Health Service Use. As a result of hierarchical regression analysis, there was a negative correlation of 0.49 times(0.31-0.78) for males. In addition, there was a positive correlation of pain 1.56 times(1.05-2.31), stress 0.55 times(1.10-2.19), walking exercise 1.44 times(1.03-2.00) and outpatient use 1.48 times(1.10-1.98). Therefore, differentiated support according to the gender of the community residents is necessary, and stress intervention or additional support for exercise is required.

• (The)Korea Educational Review
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• v.23 no.2
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• pp.5-30
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• 2017

In this study, we analyzed the longitudinal effect of participation in an overseas exchange student program on foreign language competence, intercultural competence, and personal development. Data were collected over three time points from the pre-, post-, and post-post tests with Korean college students who participated in an overseas exchange program. Hierarchical linear model was conducted to examine whether the change of participation effects exists over time and which predictors affected outcomes. The results of unconditional growth model showed that foreign language competence, cultural competence, and personal development showed statistically significant differences in their initial status prior to departure to participate in an overseas program as well as their growth rate. The results of conditional growth model showed that parents' level of education and overseas experiences before college affected the initial status of foreign language competence, and gender and overseas experience before college affected those of cultural competence as well as personal development. In case of growth rate, overseas experience before college and destination country/region affected foreign language competence, and interactions between Korean participating students and local students affected cultural competence. For personal development, only overseas experiences before college affected its growth rate. Lastly, relevant discussion and implications were provided.

• Journal of the Korean Association of Geographic Information Studies
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• v.11 no.3
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• pp.23-33
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• 2008

This study was performed to determine the central place hierarchy in Daejeon metropolitan city by examining its central place systems for the existing central place analyses through formation of urban spatial structure and GIS method. The central place structure and hierarch for the year of 2000 and 2005 were analyzed by using the model of W. K Davis modified, in which $1km{\times}1km$ GRID was applied. The analysis results showed the establishment of one CBD(existing center of Eunghaeng-dong and Sunhwa-dong) and two Subcenters (tourist resort of Yusung-dong and administrative center of Dunsan-dong) in Daejeon metropolitan city for the year of 2000. For the year of 2005, established were two CBD(existing center of Eunghaeng-dong and Sunhwa-dong and administrative center of Dunsan-dong) and two Subcenters (tourist resort of Yusung-dong and bus-terminal of Yongjeon) in Daejeon metropolitan city. The analysis results are expected to play a pivotal role in supporting the urban spatial policies in near future.

• Journal of Korean Society of Transportation
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• v.20 no.4
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• pp.163-175
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• 2002

Fatalities from traffic accidents constitute one of the major health issues as well as safety ones in Korea. It has been reported that traffic accident is affected by the combined effects of road. vehicle. and human factors. Over the past few decades, a number of studies have been conducted to find the impact of road geometric factors on traffic safety. The purpose of this study is to investigate the effect of road geometric factors on traffic safety on Korean expressways. Detailed geometric design data were available from Korea Highway Corporation. Five-year traffic accident data on Honam expressway were collected and analyzed. It was found that following geometric factors influence traffic safety on expressways : radius of curve, curve length, and length of straight section. Furthermore, the existence of I.C. turned out to have a significant impact on traffic safety level. Based on the data analysis several multiple regression forms that relate traffic accident frequencies and geometric factors on expressways are developed.

• Korean Journal of Cognitive Science
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• v.12 no.1_2
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• pp.77-89
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• 2001

Applying perceptual hierarchy of facial feature points, a neural network model for recognizing facial expressions was designed. Input data were convolution values of 150 facial expression pictures by Gabor-filters of 5 different sizes and 8 different orientations for each of 39 mesh points defined by MPEG-4 SNHC (Synthetic/Natural Hybrid Coding). A set of multiple regression analyses was performed with the rating value of the affective states for each facial expression and the Gabor-filtered values of 39 feature points. The results show that the pleasure-displeasure dimension of affective states is mainly related to the feature points around the mouth and the eyebrows, while a arousal-sleep dimension is closely related to the feature points around eyes. For the filter sizes. the affective states were found to be mostly related to the low spatial frequency. and for the filter orientations. the oblique orientations. An optimized neural network model was designed on the basis of these results by reducing original 1560(39x5x8) input elements to 400(25x2x8) The optimized model could predict human affective rating values. up to the correlation value of 0.886 for the pleasure-displeasure, and 0.631 for the arousal-sleep. Mapping the results of the optimized model to the six basic emotional categories (happy, sad, fear, angry, surprised, disgusted) fit 74% of human responses. Results of this study imply that, using human principles of recognizing facial expressions, a system for recognizing facial expressions can be optimized even with a a relatively little amount of information.

• Korean Journal of Social Welfare
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• v.61 no.1
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• pp.5-32
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• 2009

The purpose of this study is to examine the effects of organizational culture types (rational culture, developmental culture, group culture, and hierarchical culture) on Community-Centered Social Inclusion Orientation(COSI) among social service organizations for people with disabilities. More specifically, this study developed and empirically tested two theoretical models where each of organizational culture types were hypothesized to affect COSI either directly or indirectly through market orientation. For data collection, self-administered type questionnaires were mailed to 416 social service organizations for people with disabilities across the nation and 293 responded (response rate: 70.4%) from June 1 to September 22, 2006. For analysis, however, only 263 respondents were used, excluding Independent living centers due to their small size and short history. Structural Equation Modeling was employed for analysis and Full Information Maximum Likelihood was used for estimation. Findings indicated that market orientation had a significant effect on COSI. In addition, developmental culture and hierarchical culture were found to affect COSI directly while rational culture and group culture were found to affect COSI indirectly through market orientation. These findings imply that market orientation needs to be emphasized as a strategy in order to enhance social inclusion orientation for those organizations. Given that all the four types of organizational culture have direct or indirect impacts on COSI, those organizations are also advised to develop the four types of organizational culture harmoniously rather than one single type of organizational culture.

• Journal of the Korean Society of Marine Environment & Safety
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• v.9 no.2
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• pp.47-52
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• 2003

This study conducted a basic study to develop ISM Code operation evaluation module, which is part of development of Safety Management System(ISM Code) Implementation supporting module. In particular, the significant of this study is that it established AHP operation evaluation analysis process, the design of questionnaire, and the hierarchical structure of operation evaluation model standard, focusing on the development of ISM Code operation evaluation module. Also, this study has its value in the point that it attempted to apply AHP scheme, which is part of the main decision­making in management science field, to develop operation evaluation module.

• Proceedings of KOSOMES biannual meeting
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• 2003.11a
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• pp.93-97
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• 2003

This study conducted a basic study to develop ISM Code operation evaluation module, which is part of development of Safety Management System(ISM Code) Implementation supporting module. In particular, the significant of this study is that it established AHP operation evaluation analysis process, the design of questionnaire, and the hierarchical structure of operation evaluation model standard, focusing on the development of ISM Code operation evaluation module. Also, this study has its value in the point that it attempted to apply AHP scheme, which is part of the main decision-making in management science field, to develop operation evaluation module.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.219-222
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• 2013

본 논문에서는 스크래치2.0을 활용한 초등정보영재의 프로그래밍 교육 방안을 제안하고자 한다. 스크래치는 블록을 쌓는 것만으로 프로그래밍이 가능하기 때문에 프로그래밍을 처음 접하는 초등정보영재 학생의 프로그래밍 교육과정으로 적합하다. 또한 2.0으로 버전업되면서 스크립트 보기(See inside)나 리믹스(Remix)기능이 추가되어 프로그램의 공유 및 협업이 더 용이하여졌다. 따라서 이러한 스크래치2.0의 기능을 사용한다면 학습자에게 필요한 협업 및 의사소통 능력을 기르게 하는데 적합하다고 할 수 있다. 또한 영재학생들은 학습자 스스로 목표를 정하고 계획을 능동적으로 수행해나갈 때 높은 성과를 보이는 특성이 있다. 따라서 자기 주도적 학습 모형을 영재학생들에게 사용한다면 더 효과적이다. 이에 본 연구에서는 스크래치 2.0을 활용하여 Treffinger의 자기 주도적 학습모형을 적용한 프로그래밍 교육 방안을 제안하였다. 추후에 초, 중, 고 영재기관 연계를 위한 프로그래밍 교육위계에 대한 연구가 필요하다.

• Journal of Information Management
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• v.40 no.2
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• pp.47-70
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• 2009

This study is a exploratory research to develop standard measurement for service quality of public libraries through extracting common factors for them. It suggests that service quality of public libraries can be divided into three primary dimensions interaction of personnel, library resources and programs, physical environment and facilities and each dimensions be several sub-dimensions. It also suggests a third-order factor mode for public libraries' service quality based on the above dimensions and testifies it through exploratory factor analysis and confirmatory factor analysis.