• Journal of Information Processing Systems
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• v.16 no.1
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• pp.145-154
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• 2020

Maximum likelihood (ML) is the best estimator asymptotically as the number of training samples approaches infinity. This paper deduces an adaptive algorithm for blind signal processing problem based on gradient optimization criterion. A parametric density model is introduced through a parameterized generalized distribution family in ML framework. After specifying a limited number of parameters, the density of specific original signal can be approximated automatically by the constructed density function. Consequently, signal separation can be conducted without any prior information about the probability density of the desired original signal. Simulations on classical biomedical signals confirm the performance of the deduced technique.

• Journal of the Korean Home Economics Association
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• v.49 no.9
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• pp.35-45
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• 2011

This study was conducted to investigate the influence of university students' psychological separation from their parents on conflict solving strategies for dating relationships and on relationship satisfaction. The participants were 231 university students. The results were as follows. Firstly, male students were more psychologically separated from their mothers than female students. When living with parents, students were more psychologically separated from their fathers than their mothers. Secondly, the more independent students were from psychological conflict with their mothers, the less negative strategies they used in conflicts during dating. The closer female students were with their mothers, the more positive conflict solving strategies they used. Thirdly, the students who were freer from conflict with their mothers experienced higher satisfaction with emotional communication when dating. In conclusion, psychological separation from parents was confirmed to be a variable influencing both the effective use of the conflict solving strategies and dating relationship satisfaction.

• Journal of the Korean Home Economics Association
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• v.38 no.11
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• pp.77-88
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• 2000

The purpose of this study was to find out the characteristics of foster care of long-distance parents who meet their children on weekend and to examine the relationships among the separation anxiety and maternal guilt in foster care. The subject consisted of 138 employed mothers who are living separately with their children. The instruments used for this study were the Separation Anxiety Scale(Cho & Park,1992), the Maternal Guilt Scale(Kim & Kang, 1997), the Parental Satisfaction Scale(Hyun & Cho,1994), and the Parental Stress Scale(Park,1994). The main results of this study were as followings: 1. Mothers had a tend to rely on family members expecially grandparents for foster care of their children. They usually have visited to meet their children weekend and made a phone call once a day. Parental satisfaction in foster care was reported to be moderately high level. 2. The subject’s separation anxiety was found to be high, and it was strong positive relationships to maternal guilt feeling in foster care. The results of this study have implications for both formal and informal support systems of employed mothers with children. The findings of this study may used as basis for understanding long-distance parents’problems in foster care, developing support programs, and public policy for employed mothers.

• International Journal of Computer Science & Network Security
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• v.23 no.4
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• pp.79-84
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• 2023

Social studies show that the number of separated families have lately increased due to different reasons. Despite the causes for family rift, many problems are resulted which affected the children physically and psychologically. This effect may cause them fail in their life especially at school. This paper focuses on the negative reaction of the parents' separation with other factors from the computer science prospective. Since the artificial intelligent field is the most common widespread in computer science, a predictive model is built to predict if a specific child whose parents separated, may complete the school successfully or fail to continue his education. This will be done using Decision Tree that have proved their effectiveness on the predication applications. As an experiment, a sample of individuals is randomly chosen and applied on our prediction model. As a result, this model shows that the separation may cause the child success at school if other factors are satisfied; the intelligent of the guardian, the relation between the parents after the separation, his age at the separation time, etc.

• Membrane Journal
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• v.17 no.2
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• pp.81-92
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• 2007

Membrane-based separation processes are receiving increasing attention in the scientific community and industry since they provide a desirable alternative to processes that are not easy to achieve by conventional separation technologies. In particular, gas separation using polymeric membranes have annually grown so fast owing to advantages such as easy installation, no moving parts, small footprint and low energy process. The key element is definitely a polymer membrane exhibiting high permeability and high selectivity to compete with other gas separation technologies. Current polymer membranes used for commercial gas separation are a family of hydrocarbon polymers for hydrogen separation, air separation and carbon dioxide separation from natural gas sweetening. Relatively, gas or vapor separation properties of fluoropolymers are not known so much as compared with those of hydrocarbon polymers. Accordingly, in this study, membranes prepared from amorphous perfluoropolymers are of particular interest because of the unique properties of these polymers. The advantages offered by these amorphous perfluoropolymers for use in gas and vapor separation will be discussed. In addition, membrane properties and separation performance will be compared with other membranes available on the market.

• Human Ecology Research
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• v.53 no.2
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• pp.179-193
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• 2015

This study examined the retirement adaptation process for middle-aged and elderly couples. Twelve couples who had experienced retirement were recruited by theoretical sampling. Data were collected through in-depth interviews and analyzed through the grounded theory approach of Strauss and Corbin (1998). This study showed the results of 124 concepts, 41 sub-categories and 17 categories indicated through an open coding process. As a paradigm in axial coding, the causal conditions in the adjustment procedures of elderly couples whose spouses are retired were 'retirement preparation,' 'retirement acceptance,' and 'marital satisfaction.' A central phenomenon was 'crisis and conflicts of twilight couples.' The contextual conditions that correspond to this phenomenon were 'psychological separation from adult children,' 'division of household labor,' and 'economic status.' The action/interaction strategies to control the phenomenon were 'recognition of marital relationships,' 'conflicts coping,' 'resolution methods,' and 'self-reflection.' The intervening conditions that facilitate action/interaction strategies were 'attitudes of husbands,' 'mutual awareness of couple,' 'health status,' and 'support systems.' The consequences were 'readaptation of marital relationships,' and 'unresolved conflicts,' and 'trying alone.' This research classified middle-aged and elderly couples' adaptation into three types such as mutual effort, separation & resignation, and conflicts vestige. The findings provide basic information to develop a retirement adaptation program for the middle-aged and elderly.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.11a
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• pp.475-478
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• 2008

In Korea, there has been a tendency that multi-family housings are constructed by providers such as constructors or real estate agents for the economical benefits and selling efficiency, using standardized plans, load-bearing wall system, water-based construction method, and uniformized formworks. Especially, the traditional installation works which service equipments are buried into structures cause serious problems such as shortening building life span, increasing times of remodeling during specific period (100 years) and wasting resources. Also the unilateral way of massive distribution by providers for multi-family housings is not appropriate to meet the various social needs of residents. To solve these problems, it is necessary to build long-life housing which can be easily separated installations, interior and exterior finishings from structural parts. Therefore, this paper will examine the present administrative law and the civil law in order to find negative factors that can be obstructions for providing long-life housings and set the direction to revise the regulations.

• Journal of the Korean housing association
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• v.5 no.2
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• pp.41-50
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• 1994

The purpose of this study is to investigate changes of the kitchen lifespace in Korean family houses from the Old Stone Age to the Koryo Dynasty. The documentary research method was used for this study. The major findings were as follows the changes of kitchen lifespace in Korean family houses form the Old Stone Age to the Koryo Dynasty have been affected by natural, political, economic, technological, and socio-cultural environments. The Kitchen lifespace of these periods was categorized into six categories: the Beginings Period of the Kitchen, the Period of the Primitive Kitchen, the Formative Period of the Kitchen, the Enlargement Period of the Kitchen, the Separation Period of the Kitchen, and the Begining Period of the Traditional Kitchen.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.30 no.3
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• pp.88-99
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• 2019

Objectives: With increasing concerns for the rapidly growing minority population in South Korea, this literature review addressed a range of mental health risks among multiethnic youths (MY) in South Korea by 1) comparing mental health outcomes with those of native-born youths and 2) identifying multiple layers of relevant environmental factors, from family and school relationships to culture. Methods: We reviewed 54 studies that fulfilled specific inclusion criteria. Results: Multiple common risk/protective factors, including family separation, family relationship quality, parental socioeconomic and mental health status, social relationships at school, and cultural acceptance, were noted. Conclusion: In general, empirical evidence indicates that minority youths have relatively heightened risks for emotional and behavioral problems. Future studies must elucidate the complex interplay between multiple risk and protective factors and the long-term adaptation and mental health service utilization of MY.

• Korean Journal of Legislative Studies
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• v.23 no.2
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• pp.179-217
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• 2017

The purpose of this study is to analyze the integration and separation phenomenon of the legislative network by analyzing the Legislative cosponsorship networks in the process of multicultural, family, and gender legislation. First, I analyzed the Legislative cosponsorship networks centered on the proposed bills in the Women and Family Committee. Second, Analyze the network of joint initiatives for multicultural, family, gender related legislation and representative laws in each field. In this process, we analyze who participates in the Legislative cosponsorship networks and who is the leader of the political coalition. Finally, Understand the shared characteristics and differentiated characteristics of policy networks according to policy issues.