• 대한간호학회지
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• 제37권4호
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• pp.490-500
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• 2007

Purpose: The purpose of this study was to identify factors influencing the outcome of psychosocial rehabilitation for persons with chronic mental illness and to suggest a hypothetical model of psychosocial rehabilitation which is based on the relationship between influencing factors and then to test its fitness empirically. Method: Data was collected from persons with a chronic mental illness using a self-report questionnaire, and from their case managers using an observed rating questionnaire. A total of 220 cases were used in the final analysis, and a hypothetical model was verified through covariance structure analysis using LISREL. Result: 1) The fitness indices of the model were $X^2=133.77$ (df=48, p=.00), GFI=0.93, AGFI=0.87, RMR=2.32, NNFI=0.95 and NFI=0.95. Twelve paths among fifteen proved to be significant. 2) Psychosocial rehabilitation was influenced directly by symptoms, daily living skill and self-concept, and was influenced indirectly by the psychosocial rehabilitation program service. Psychosocial rehabilitation accounted for 32% of variance of these factors. Conclusion: This study is expected to contribute to understanding the psychosocial rehabilitation phenomena. Besides it will provide basic information for developing strategies of bio-psycho-sociological interventions and evaluations in regard to influential factors of psychosocial rehabilitation.

• 가정과삶의질연구
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• 제15권2호
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• pp.71-71
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• 1997

This study aims ai the extraction of what is universally to be taught in modern Korean Families and its scalization. That is, it attempts to provide the criterion by which we can determine what to teach adolescent in the family, not in society or school. For this purpose, this study firstly reviews the preceeding studies on the subject. As a result of the review, we postulate the hypothetical structure consisting of 11 domains. Secondary, we gather the parent's view on the topic by interviewing 496 parents with teenagers. On the basis of this study, we can construct the questionnaire(Likert scale; 5 point). After we conduct an extensive empirical research(346 parents) in order to generalize 195 items of the workedout questionnaire. We apply factor analysis(principal axis factoring, oblique (promax) rotation) in the verification of the validity. As the consequence, we select 66 items consisting, 10 factors, which explain 68% of common variance. We name the 10 educational factors extracted in the scale as follows ; The Sense of Value, Communal Society, Sex, Esteem for an ancestor & a traditional way of life, Parent-Child Relationship, the Culture life within the family, The Guide of Learning Way, Setting up the way of life, The control of one's life, Friendship. The reliability of the scale is the cronbach =0.91 which turns out to be satisfactory.

• 영재교육연구
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• 제3_4권1호
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• pp.158-166
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• 1994

The nature of the classroom environment is an important variable to understand when fostering creativity for elementary children. Studies of the classroom climate, structure or interaction commonly depend on behavioral observations or reports from the teacher or other adult-observer. Recent studies have used self-report instruments completed by students regarding their perceptions of various aspects of their class (see Fraser, 1991). The purpose of this study was to determine the developmental differences in the ratings of classroom environment between Korean students who are gifted and their American peers. The My Class Inventory was administered to 141 elementary students in grades three, four, and five. There were 65 Korean students and 76 American students who were identified as gifted by their schools. Reliability coefficients were calculated for all scales (satisfaction = .68: friction, .67; competition = .57; cohesion = .73; difficulty = .22). Results of a multivariate analysis illustrated significant differences between students from Korea and students from America on the MCI. Univariate analysis of variance of cultural group by grade level were conducted for four of the five scales. Significant differences were found by country for the cohesion scale and by country at grade levels for the satisfaction scale. American children expressed greater satisfaction than their Korean counterparts at all grade level, but particularly at grade five. Implications for further research are discussed.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.1682-1685
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• 2005

System algorithms estimated by deterministic input may occur the error between predicted and actual output. Especially, actual system can't predict the exact outputs due to uncertainty and tolerance of input parameters. A single output to a set of inputs has a limited value without the variation. Hence, we should consider various scatters caused by the load assessment, material characteristics, stress analysis and manufacturing methods in order to perform the robust design or estimate the reliability of structure. The system design with uncertainty should perform the probabilistic structural optimization with the statistical response and the reliability. This method calculated the probability distributions of the characteristics such as stress by combining stress analysis, response surface methodology and Monte-Carlo Method and got the probabilistic sensitivity. The sensitivity of structural response with respect to inconstant design variables was estimated by fracture probability. Therefore, this paper proposed the probabilistic reliability design method for fracture of uncorved freight end beam and the design criteria by fracture probability.

• 응용통계연구
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• 제19권2호
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• pp.349-360
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• 2006

SAS의 PROC MIXED를 사용하면 일반적인 ANOVA 추정량뿐만 아니라 더 많은 장점을 갖는 제한최대우도추정법 또는 최대우도추정법으로 모수들을 추론할 수 있다. 혼합모형에 속하는 불균형중첩오차구조를 갖는 선형회귀모형에서 랜덤효과와 관련된 그룹간 분산의 신뢰 구간과 고정효과에 해당되는 회귀 계수들에 대 한 신뢰구간을 구하기 위하여 세 가지 크기를 갖는 표본에 대하여 PROC MIXED를 사용하였다. 모의실험을 실행한 결과, 대표본인 경우에는 모수들의 신뢰 구간을 구하기 위하여 PROC MIXED를 활용할 수 있지만, 소표본인 경우에는 PROC MIXED를 사용할 경우, 그룹간 분산의 신뢰 구간과 회귀계수 가운데 절편항의 신뢰구간은 주어진 신뢰계수를 지키지 못하는 것을 보인다.

• 응용통계연구
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• 제24권1호
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• pp.127-136
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• 2011

본 연구에서는 통계기관에서 마이크로자료를 제공할 때, 연속형 변수를 마스킹하는 기법으로 잘 알려진 승법잡음모형을 적용하는 경우 원자료의 평균과 분산을 유지할 수 있는 변수 변환 방안을 제시하고, 제시된 방법의 적절성과 다양한 잡음생성 분포에 따른 마스킹자료의 유용성을 검토하였다. 아울러 여러 변수들을 대상으로 승법잡음모형을 적용하는 경우 변수들 간의 상관관계를 유지하기 위해서는 잡음생성과정에서 어떤 측면이 고려되어야 하는지 살펴보았다. 본 연구에서는 제시된 변수 변환 방법의 적절성과 자료의 유용성 등을 평가하기 위해 우리나라 가계조사자료를 이용한 모의실험을 수행하였다.

• 한국도로학회논문집
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• 제19권4호
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• pp.1-7
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• 2017

PURPOSES : This study aims to improve complex modeling of multivariable, nonlinear, and overdispersion data with an artificial neural network that has been a problem in the civil and transport sectors. METHODS: Deep learning, which is a technique employing artificial neural networks, was applied for developing a large bus fuel consumption model as a case study. Estimation characteristics and accuracy were compared with the results of conventional multiple regression modeling. RESULTS : The deep learning model remarkably improved estimation accuracy of regression modeling, from R-sq. 18.76% to 72.22%. In addition, it was very flexible in reflecting large variance and complex relationships between dependent and independent variables. CONCLUSIONS : Deep learning could be a new alternative that solves general problems inherent in conventional statistical methods and it is highly promising in planning and optimizing issues in the civil and transport sectors. Extended applications to other fields, such as pavement management, structure safety, operation of intelligent transport systems, and traffic noise estimation are highly recommended.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.1173-1178
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• 2007

The robot for narrow space is used in searching, investigating or cleaning. Up to now variety of researches on in-pipe robots have been introduced. However it is still hard to overcome vertical or curved passage. In most cases of narrow space robots are able to travel just aimed diameter which was selected when those are developed. Also, a large percentage of robots are not able to detect the configuration of pipe or circumstance. In this paper we present a robot called PAROYSⅡ for narrow space with vertical and curved passage. This proposed robot is not affected at all to variance of pipes, vertical or horizontal passages, curved pipes, projecting parts and parallel planes. In addition to that, it will perceive the internal configuration of pipe and terrain, which will be not only available to control navigating scheme by itself, but also mappable about the passage which the robot traveled. Core points in the design and structure are introduced and preliminary verification is given.

• 동의생리병리학회지
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• 제27권2호
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• pp.261-267
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• 2013

The purpose of this study was to examine the psychometric structure of Sasang typology with four personality measures and examine the construct validity of Sasang Personality Questionnaire (SPQ). We measured biopsychological traits of 104 university students using SPQ, Temperament and Character Inventory (TCI), NEO-Personality Inventory (NEO-PI) and Myers-Briggs Type Indicator (MBTI). The construct validity of SPQ was analyzed with TCI, NEO-PI and MBTI using Pearson's correlation. The temperament features of each Sasang groups were compared with Analysis of Variance and Profile Analysis. The SPQ showed significant correlation with TCI Novelty-Seeking (r=.398), TCI Harm-Avoidance (r=-.333), TCI Reward-Dependence (r=.465), TCI Self-Directedness (r=0.340), NEO-PI Extraversion (r=0.489) and MBTI Extraversion-Introversion (r=-0.509). The SPQ, TCI and NEO-PI revealed significant differences between Sasang constitutional groups. We examined the temperament construct of the Sasang typology and the validity of SPQ with well established western biopsychosocial instruments. This study would contribute to the objective studies on the biopsychosocial mechanism of Sasang medicine.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권11호
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• pp.2068-2086
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• 2011

Based on the quincunx sub-sampling grid, the New Interleaved Hierarchical INTerpolation (NIHINT) method is recognized as a superior pyramid data structure for the lossless and progressive coding of natural images. In this paper, we propose a new image interpolation algorithm, Edge Adaptive Hierarchical INTerpolation (EAHINT), for a further reduction in the entropy of interpolation errors. We compute the local variance of the causal context to model the strength of a local edge around a target pixel and then apply three statistical decision rules to classify the local edge into a strong edge, a weak edge, or a medium edge. According to these local edge types, we apply an interpolation method to the target pixel using a one-directional interpolator for a strong edge, a multi-directional adaptive weighting interpolator for a medium edge, or a non-directional static weighting linear interpolator for a weak edge. Experimental results show that the proposed algorithm achieves a better compression bit rate than the NIHINT method for lossless image coding. It is shown that the compression bit rate is much better for images that are rich in directional edges and textures. Our algorithm also shows better rate-distortion performance and visual quality for progressive image transmission.