• 자원환경지질
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• 제55권3호
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• pp.231-239
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• 2022

The irregular shape of the disturbances is a fundamental issue for mining engineers at the Sidi Chennane phosphate deposit in Morocco. A precise classification of disturbed areas is therefore necessary to understand their part in the overall volume of phosphate. In this paper, we investigate the theoretical and practical aspects of studying and measuring multifractal spectrums as a defining and representative parameter for distinguishing between the phosphate deposit of a low rate of disturbances and the deposit of a high rate. An empirical multifractal approach was used by analyzing the disturbed areas through the geoelectric images of an area located in the Sidi Chennane phosphate deposit. The Generalized fractal dimension, D(q), the Singularities of strength, α(q), the local dimension, f(α) and their conjugate parameter the mass exponent, τ(q) as well as f(α)-α spectrum were the common multifractal parameters used. The results reported show wide variations of the analyzed images, indicating that the multifractal analysis is an indicator for evaluate and characterize the disturbed areas within the phosphates deposits through the studied geoelectric images. This could be the starting point for future work aimed at improving phosphate exploration planning.

• 경영과정보연구
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• 제34권5호
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• pp.295-312
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• 2015

최근 기업에서는 지속적 경쟁우위를 확보하기 위해 조직 구성원들 간의 네트워크와 신뢰에 의해서 형성되는 사회적 자본을 중시하고 있다. 사회적 자본은 조직 내 다차원적인 요인들과의 상호작용을 통해 구성원들의 적응과 몰입을 유도하고, 의사소통 및 참여의 통로로서 협력적 행동을 유발하여 조직성과를 높이는데 기여한다. 본 연구는 조직 내 형성되어 있는 사회적 자본과 조직지원인식이 이직의도에 미치는 영향을 분석하였으며 나아가 사회적 자본과 이직의도와의 관계에서 조직지원인식의 조절효과를 살펴보았다. 이를 위해 부산 경남 소재 중소 제조업체를 중심으로 설문을 실시하고 위계적 회귀분석을 사용하여 실증 분석하였다. 실증 분석결과, 첫째, 사회적 자본의 구조적 차원과 관계적 차원이 이직의도에 부(-)의 영향을 미치는 것으로 나타났다. 특히 관계적 차원이 이직의도에 큰 영향을 미치는 것으로 나타나 조직 내 구성원들 간의 상호작용을 통한 신뢰형성이 중요함을 알 수 있다. 둘째, 조직지원인식이 이직의도에 부(-)의 영향을 미치는 것으로 나타났다. 이는 구성원 개개인들에게 조직차원의 관심과 전폭적 지원이 필요함을 알 수 있다. 셋째, 조직지원인식이 사회적 자본과 이직의도 사이의 관계를 조절하는 것으로 나타났다. 조직지원인식이 높을수록 사회적 자본의 관계적 차원만이 이직의도에 미치는 부(-)의 영향이 더욱 낮게 나타나는 것으로 확인되었다. 이러한 분석결과를 근거로 본 연구의 이론적 실무적 시사점과 향후연구 과제에 대하여 논의하였다.

• 한국사회복지학
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• 제68권4호
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• pp.119-141
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• 2016

본 연구는 성남시 청년배당 지급조례를 기본소득 실현 사례로 설정하여 그 도입에 있어서 문화복지위원회 회의록을 규범과 경험의 정책기준으로 분석한 결과다. 주요 문장을 질적 코딩하여 재분류하는 분석방법을 응용하였다. 규범적 차원에서 찬성논의는 사회정의를 실현하는 목적으로 청년배당을 이해한다. 또한 원리적으로 기존정책을 대체할 수 있다고 본다. 반면 도덕적으로 정당하지 아니하며 정책의 비교 우위에 대한 모호성과 수단의 비효율성 등 원리적, 수단적 차원에서 반대 논의가 제기된다. 경험적 차원에서 찬성논의는 사회적 배려대책으로 이해하며 기존 대책의 기능부전에 따른 혁신적 정책 도입에 초점을 두고 있다. 반면 반대논의는 목표 효율성과 급여 내용에 대한 문제를 들고 있다. 양측이 너무 대조적이므로 합의는 어려우며 정치적 진영 논리가 중요 변수가 될 수 있다. 기본소득은 인간의 자기실현에 대한 새로운 사고실험이므로 생산주의 복지정책과는 다른 정책과학이다. 즉 총체적 생활지원을 요구하는 돌봄의 사회정책을 제한 조건으로 하는 실질적 자유를 위한 물질적 지원을 고려하는 비경험적 정책이다. 기존의 정책 과학적 평가 이전에 자율적인 삶의 실현을 지향하는 그 자체의 철학적 의미에 대한 이해와 복지 정치와 운동을 통한 정체성 알리기는 여전히 중요한 전략이 될 것이다.

• 응용통계연구
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• 제22권6호
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• pp.1143-1152
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• 2009

A canonical correlation analysis(CCA)-based method is proposed for prediction of future climate change which combines information from ensembles of atmosphere-ocean general circulation models(AOGCMs) and observed climate values. This paper focuses on predictions of future climate on a regional scale which are of potential economic values. The proposed method is obtained by coupling the classical CCA with empirical orthogonal functions(EOF) for dimension reduction. Furthermore, we generate a distribution of climate responses, so that extreme events as well as a general feature such as long tails and unimodality can be revealed through the distribution. Results from real data examples demonstrate the promising empirical properties of the proposed approaches.

• Safety and Health at Work
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• 제13권2호
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• pp.170-179
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• 2022

Background: The vulnerability of international migrant workers is on the rise, affecting the frequency of occupational accidents at workplaces worldwide. If migrant workers are managed in the same way as native workers, the consequences on safety assurance and risk management will be significant. This study aimed to develop the vulnerability factor model for migrant workers in seafood processing industries because of significant risk-laden labor of Thailand, which could be a solution to control the risk effectively. Methods: A total of 569 migrant workers were surveyed (432 Burmese and 137 Cambodian), beginning with 40 initial vulnerability factors identified in the questionnaire established from experts. The data were analyzed through descriptive analysis; exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used to ascertain the model. Results: The result of content validity >0.67 and the Cronbach's alpha of 0.957 specified the high reliability of 40 factors. The EFA indicated a total variance of 65.49%. The final CFA validated the model and had an empirical fitting; chi-square = 85.34, Adjust Goodness-of-Fit Index = 0.96, and root mean square error of approximation = 0.016. The structure concluded with three dimensions and 18 factors. Dimension 1 of the structure, "multicultural safety operation," contained 12 factors; Dimension 2, "wellbeing," contained four factors; and Dimension 3, "communication technology," contained two factors. Conclusion: The vulnerability factor structure developed in this study included three dimensions and 18 factors that were significantly empirical. The knowledge enhanced safety management in the context of vulnerability factor structure for migrant workers at the workplace.

• 한국항행학회논문지
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• 제28권1호
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• pp.21-26
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• 2024

도심항공교통(UAM; urban air mobility)은 교통 혼잡이 증가하는 도시 지역에서 교통수단의 대안으로 주목받고 있다. 사람 중심의 서비스인 기존 항공교통업무 방법으로는 복잡한 UAM 운용환경을 관리하기는 어려울 것으로 판단된다. 따라서 UAM 항공교통관리 (UATM; UAM traffic management)를 위한 첨단 정보처리 기반 교통관리시스템이 필요하다. 체계적인 UATM 환경 구축을 위해서는 공역관리가 필수적이다. 특히 UAM 항공기가 안전하게 운항할 수 있는 배타적 회랑을 구축하면 최저비행고도 규정을 위반하지 않고도 UAM 항공기를 운항할 수 있는 기회를 제공할 수 있다. 본 연구에서는 UAM 운용을 위한 회랑의 횡단규격을 설정하기 위해 UAM과 유사한 규모의 헬리콥터를 이용하여 실증분석을 수행하였다. 연구 결과는 UAM 회랑 설계 시 지침으로 활용되기를 기대한다.

• 한국사회복지학
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• 제44권
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• pp.7-35
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• 2001

Little empirical study has been conducted concerning board function effectiveness and organizational performance in nonprofit nongovernmental human service organizations in Korea. Using the evaluations of 107 board members and 17 executive directors in Korean Community Chest and 16 regional community chests, this study attempted to examine the level of board function effectiveness and its relationship with organizational performance in these community chests. This study used board function scale developed by Holland and Jackson (1998) to measure board function effectiveness in the following 6 dimensions: contextual dimension: educational dimension: interpersonal dimension: analytical dimension: political dimension: and strategic dimension. This study showed that using 4 points scale, mean of overall board function effectiveness evaluated by board members is 2.62 and mean of overall board function effectiveness evaluated by executive directors is 2.73. That is, it showed that means of overall board function effectiveness are located in the middle point between negative evaluation and positive evaluation. On the other hand, using parametric correlation analysis method, it was found that in these community chests the association between board function effectiveness and organizational performance measured by fund-raising growth rate in $1999{\sim}2000\;and\;1998{\sim}2000$ is very weak and statistically nonsignificant. This study also revealed that using nonparametric correlation analysis method, the association between consensus level in evaluation by board members and executive directors about board function effectiveness, and organizational performance is still very weak and statistically nonsignificant. Finally, this study discussed the direction of future research in board function effectiveness and its relationship with organizational performance and the areas of board management that requires substantial efforts for promoting effectiveness of nonprofit human service organizations in Korea.

• 보건교육건강증진학회지
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• 제20권3호
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• pp.145-170
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• 2003

The purpose of this study was to clarity the concept of health insensitivity using Hybrid model, which consists of three phases： theoretical, empirical, and analytic. In the theoretical phase, the definitions of health insensitivity were searched in korean dictionary and examples used in the websites because the concept of health insensitivity has never been studied before. Two dimensions of health insensitivity emerged out from this investigation were cognitive and behavioral. And then a working definition of health insensitivity was established. The sub-concepts and related factors of health insensitivity were identified through the extensive reviews of the literature focusing on two dimensions of cognitive and behavioral. In the empirical phase, in order to obtain description of health insensitivity, face-to-face in-depth interviews were conducted with nine persons who are not related to professional health care. Grounded theory approach was applied to analyze these qualitative data. In the final analytic phase, theoretical results and empirical results were analyzed in the integrated way and a theoretical framework of health insensitivity was established. A refined definition of health insensitivity was that decreased health risk perception in cognitive dimension and conduction of the unhealthy behaviors in behavioral dimension. Sub-concepts of decreased health risk perception were optimistic bias and decreased general fear. Sub-concepts of unhealthy behavior were doing health threatening behavior and not doing desirable health behavior. The contact of health information was a causal condition of health insensitivity. Optimistic disposition, health locus of control, and avoidance coping style were intervening conditions of health insensitivity. Three types of health insensitivity were identified： unconcern or ignorance type, optimistic bias type, and cognitive dissonance type. Finally, The implications of these findings for further research and nursing practice are discussed.

• 품질경영학회지
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• 제45권1호
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• pp.11-24
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• 2017

Purpose: This study is on the priority for improving students satisfaction in university educational service. It explores the dimension of service quality and analyzes the relationship among quality elements, service satisfaction, and loyalty. Methods: This paper performs empirical studies by questionnaire survey. The Timko model is used for finding the degree of possible improvement of quality elements, and structural equation and regression models are used to analyze the effect of them on service satisfaction and loyalty. Also, explanatory factor analysis is used to investigate the quality determinants. Results: The quality dimension is composed of curriculum, employment support, interaction with outsiders, start-up support, learning support, counselling, and administration service. Curriculum, learning support, and administration service are positively correlated with service satisfaction, and service satisfaction has a positive effect on loyalty. Counselling service is an attractive element, and curriculum, start-up support, and learning support are indifferent elements. Conclusion: Comprehensive analysis shows that curriculum, academic advisor, and administration service have high priorities for improving educational service satisfaction.

• 한국의류산업학회지
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• 제5권4호
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• pp.363-371
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• 2003

This study is designed to identify the dimensions of clothing shopping motives and clothing involvements which influence consumers' store choice behaviors and to find out what variables have a direct influence on the attitudes of customers toward stores. The empirical research was made through the survey on 300 female and male shoppers who purchased clothing. The major results of this study are as follows : 1. The dimension of clothing shopping motives is composed of leisure-related shopping motive, products-related shopping motive, and economy-related shopping motive. And the dimension of clothing involvement consists of pleasure involvement factor, fashion involvement factor, and symbol involvement factor. 2. The dimension of the store choice criteria is composed of such five factors as promotion, products, prices/salespersons, service, and location. 3. There is a positive correlation of the products-related shopping factor and the leisure-related shopping motive only. And the store choice criteria have a positive correlation with all the factors of clothing involvement. 4. The high-shopping-motive group turns out to pay more importance to such factors as products and location than the low-shopping-motive group. 5. The variables which have influences on the attitudes of customers toward stores tum out to be such factors as fashion involvement, promotion in the store choice criteria, and gender.