• Korean Journal of Mathematics
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• v.22 no.3
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• pp.517-527
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• 2014

In this paper, we study affine transformations of normal bases and give an explicit formulation of the multiplication table of an affine transformation of a normal basis. We then discuss constructions of self-dual normal bases using affine transformations of traces of a type I optimal normal basis and of a Gauss period normal basis.

• Journal of the Korean Home Economics Association
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• v.35 no.1
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• pp.339-356
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• 1997

The purpose of this study is to examine the relationships among role conflict coping strategy and psychological distress of dual-career wives. In order to achieve the study purpose the theoretical model of this study was built on the basis of relevant theories and previous studies, Especially it was influenced by the ABCX model of family stress proposed by Hill, Data were collected from 229 dual-career wives such as professors doctors lawyers teachers pharmacists and nurses. The results were as follows: 1. Role conflict was negatively correlated to self-esteem and positively correlated to psychological distress. 2) in terms of a main effect coping strategy was positively correlated to self-esteem and negatively correlated to psychological distress. 3) In terms of interaction effect coping strategy did not show any significant effect against the negative impacts of role conflict on self-esteem and it on the whole did not whole a significant effect against the positive impacts of role conflict of psychological distress.

• Journal of the Korean Institute of Telematics and Electronics B
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• v.31B no.11
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• pp.151-162
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• 1994

A new neural network structure called Self-organized Distributed Networks (SODN) is proposed for developing the neural network-based multidimensional system models. The learning with the proposed networks is fast and precise. Such properties are caused from the local learning mechanism. The structure of the networks is combination of dual networks such as self-organized networks and multilayered local networks. Each local networks learns only data in a sub-region. Large number of memory requirements and low generalization capability for the untrained region, which are drawbacks of conventional local network learning, are overcomed in the proposed networks. The simulation results of the proposed networks show better performance than the standard multilayer neural networks and the Radial Basis function(RBF) networks.

• Journal of Electrical Engineering and Technology
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• v.13 no.6
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• pp.2511-2520
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• 2018

In this study, Multi-Radial Basis Function Support Vector Machine (Multi-RBF SVM) classifier is introduced based on a composite kernel function. In the proposed multi-RBF support vector machine classifier, the input space is divided into several local subsets considered for extremely nonlinear classification tasks. Each local subset is expressed as nonlinear classification subspace and mapped into feature space by using kernel function. The composite kernel function employs the dual RBF structure. By capturing the nonlinear distribution knowledge of local subsets, the training data is mapped into higher feature space, then Multi-SVM classifier is realized by using the composite kernel function through optimization procedure similar to conventional SVM classifier. The original training data set is partitioned by using some unsupervised learning methods such as clustering methods. In this study, three types of clustering method are considered such as Affinity propagation (AP), Hard C-Mean (HCM) and Iterative Self-Organizing Data Analysis Technique Algorithm (ISODATA). Experimental results on benchmark machine learning datasets show that the proposed method improves the classification performance efficiently.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.582-592
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• 2019

This study was conducted to identify the causal pathways of variables affecting life satisfaction in adolescents with disabilities to establish a basis for concrete intervention in their daily lives. This study was conducted on 239 adolescents with disabilities aged 9 to 24 years who responded to the survey on the actual conditions of people with disability in 2017. The SPSS macro process was used for analysis of the dual mediation effect. The results showed that there was a statistically significant correlation between instrumental daily life performance capacity, life satisfaction, Self-Rated Health, and participation in culture and leisure activities. It confirmed the mediating effects of Self-Rated Health and cultural leisure activities when the instrumental daily life performance capacity affected life satisfaction. This confirmed the dual mediating effect of instrumental daily life performance capacity on life satisfaction through causal pathways of Self-Rated Health and participation in cultural leisure activities. Based on the results of this study, it was possible to identify the focus of practical intervention through the identification of sequential pathways of Self-Rated Health and cultural and leisure activities on influence of instrumental daily life performance capacity and life satisfaction in adolescents with disabilities.

• 한국노년학
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• v.29 no.1
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• pp.1-20
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• 2009

The purpose of the current research is to reconstruct the process in which changes in elderly support take place from the perspective of the elderly in rural areas. Six elderly couples were interviewed three times with the use of Schütze's 'autobiographical-narrative interview'. The entire interviews consisted of 17 sessions. Interviewed data was analyzed, following the method of Schütze's 'autobiographical-narrative interview analysis'. Research findings were as follows: Elderly support as experienced by the current elderly couples is mainly 'family support', which turned out to be 'dual structural shift' in the process of modernization. That is, there has been an 'internal structural shift' from 'family support on intergenerational, mutual support dimension' to 'family support on intragenerational self-support dimension' on the one hand. An 'external structural shift' has been noticed that realizes the 'socialization of family support' on the other hand. Additionally, a 'discrepancy' was captured between support norm and support behavior as occurred in the process of 'dual structural shift'. Perception on the 'dual structural shift' has proven 'ambivalent'. On the basis of these results, a critical discussion of modernization theory ensued, along with some implications for practice.

• Journal of Families and Better Life
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• v.6 no.1
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• pp.95-116
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• 1988

this study has dual purposes; one is to develope a new theoretical framework in consumer behavior area by applying the human ecological approach, and the other is to test the theory empirically area by applying the human ecological approach, and the other is to test the theory empirically by examining prepurchasing behavior of housing. Research methods adopted in this study are library search and survey research with self-administered questionnaires. The statistical methods used in the survey research are factor analysis, chi square test, and multivariate analysis with crosstablulations. According to the human ecological approach, ecological environments are important sources of consumer needs which , in turn, are satisfied by purchasing behavior in the market. Within this theoretical framework, consumers con improve the quality to life by perceving clearly what their needs are thereby making the most possible efficient purchasing decision making. The major findings of the empirical research on the basis of the theoretical framework are as follows; 1) Housing needs significantly vary with different ecological environment. 2) consumer information search behavior does not differ significantly by housing needs. 3) Housing needs turn out to be an intervening variable between ecological environments and consumer information search behavior. the results of this study show that the human ecological approach is useful in consumer behavior studies. The empirical result that consumer needs are not significantly satisfied by consumer behavior suggests a now direction in consumer education.

• Journal of Christian Education in Korea
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• v.61
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• pp.9-35
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• 2020

In the second half of the previous century the composition of the teacher population - and the composition of the pupil and parent population - in the Netherlands gives rise to the name change 'age of secularisation' to 'age of pluralisation'. In previous centuries the (religious or secular) worldview identity of the parents and the educational philosophy of the school were attuned to each other, and merged into a mono-cultural perspective on the identity development of pupils. The basis for both - the upbringing by the parents and the socialisation in the family on the one hand, and the teachers' efforts to enculturate the students at the school on the other - was a similar life orientation. The school choice of the parents was predetermined by their commitment to a particular (religious) worldview, very often inspired by Christianity. The religious identity of their children developed in a clear-cut context. However, in contemporary society plurality dominates, at home and at the school, both in case of the parents and the teachers. A direct relationship with a community of like-minded believers is no longer decisive for parents with varying cultural and religious backgrounds. Instead, a good feeling upon entering the schoolyard or the school building is a convincing argument in the process of school choice. The professional identity development of teachers and the religious identity development of children takes place in a plural context. Our question is: what does this mean for the normative professionalism of the teacher? To answer this research question we make use of the resources of the Dialogical Self Theory (DST) with its core concepts of 'voice' and 'positioning'. After presenting the Dutch dual education system (with public and denominational schools) we provide a lively description of a Dutch classroom situation occurring in a public school, as viewed from the perspective of the teacher. The focus in this description is on performative dialogue as a 'disruptive moment' and on its potential for the hyphenated religious identity development of teachers, which makes up a part of their normative professionalism.

• Journal of Energy Engineering
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• v.24 no.4
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• pp.192-199
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• 2015

Under the economic banner of "self-reliance," North Korea has focused on hydro and thermal power as its main energy supply sources. However, in the face of extreme energy penury caused by machinery and material supply instability in the wake of the collapse of the former communist block as well as equipment aging and deterioration due to floods and other disasters, North Korea and international aid organizations are increasingly turning their attention toward energy source diversification. In particular, renewable energy is recognized as the best strategic energy source for North Korea and it is a decentralized energy option that is suitable in light of North Korea's power distribution networks and its pursuit of self-reliance. Biogas can contribute to improving the human rights situation of North Koreans in conjunction with an increase in food production. For this reason, renewable energy is the most promising option for an energy source that is likely to secure humanitarian aid from international organizations such as the Food and Agricultural Organization (FAO) and the World Food Programme (WFP). However, the implementation of such humanitarian aid has been hampered by rising concerns about the diversion of provided energy materials for military purposes and the disguised introduction of dual use items strategic materials as well as UN Security Council resolutions and sanctions of the international community against North Korea's military provocation, including nuclear tests and missile launches. This paper explores the possibility of solving this dilemma and proceeding with the humanitarian aid to North Korea by evaluating the potential for sanction and the risk of diversion of the possible products for biogas-related aid on the basis of the list of UN-sanctioned items.

• Korea journal of population studies
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• v.21 no.2
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• pp.37-57
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• 1998

In recent, Korea introduced the local self-government system. And the local government tried to establish and implement plans for women. Those plans were established on the basis of not the particular environments of regional societies but similar policies of central government. Despite of geographical migrations, we can find differences of population structure and economic status among regions. As the result, most of regional policies for women were ineffective. This paper examines population structure and economic status of women by regions and recommends the long and medium direction for local policies for women. For analysis, it utilizes the 2% sample data-set of National Statistical Office's '1995 Population and Housing Census' in Korea. The findings of this paper are summarized as following; Firstly, the dependency rate of Chungchong-do, Cholla-do, Kyongsangnam-do will reach about 45% in 2000. Therefore, as soon as possible, those local government should establish the labor policies to enhance the economically active participation rate of the elderly persons and welfare policy for them. Secondly, the level of women's economic participation. Thus, local governments should set up labor market policies for women according to regional situations. For examples, in Kyonggi-do, Seoul, Daejeon, Daeku which unemployment rate of the highly educated women are relatively high, those local governments should seek the measures to tackle unemployment problem of them. Thirdly, due to the differences regional economic structure, women's employment structures differed also by region. Hence, local governments should formulate suitable plans to consider the working status of regional women's workers.