• Journal of the Korean Institute of Telematics and Electronics
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• v.23 no.5
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• pp.631-636
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• 1986

The self-tuning control theory which has so far been studied has the type of a moving average noise mode. In this paper we propose a self-tuning munimum varinace control of the plant with an autoregressive noise model. New identities are introduced to find a munimum variance control input, and the stability and convergence properties in a closed loop system are studied using the BIBO concepts and ODE method. Also the proposed algorithm is compared withe that of the original self-tuning control by computer simulation.

• Electronics and Telecommunications Trends
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• v.38 no.6
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• pp.95-106
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• 2023

As artificial intelligence has become commonplace in various fields, the transparency of AI in its development and implementation has become an important issue. In safety-critical areas, the eXplainable and/or understandable of artificial intelligence is being actively studied. On the other hand, machine learning have been applied to the intelligence of self-organizing network (SON), but transparency in this application has been neglected, despite the critical decision-makings in the operation of mobile communication systems. We describes concepts of eXplainable machine learning (ML), along with research trends, major issues, and research directions. After summarizing the ML research on SON, research directions are analyzed for explainable ML required in intelligent SON of beyond 5G and 6G communication.

• Journal of the Korean Home Economics Association
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• v.44 no.2 s.216
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• pp.25-36
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• 2006

This study examined the subcategories of the self concept of adolescent consumers, and investigated the influence of this self concept and the demographic characteristics on the evaluation and experience of adolescent entry into harmful places. The adolescent group was divided into 4 subgroups: (group I with negative evaluation and without entry experience, group II with negative evaluation but with experience;, group III with positive evaluation but without experience, and group IV with positive evaluation and with experience). The differences of demographic characteristic and self concept between these. subgroups were inspected. The results of this study were as follows. First, the self concept of the adolescent consumer consists of body self, social self, achievement self, scholarship self and family self. Among these self concepts, scholarship self was the highest, and family self was the lowest. Second, from the result of regression analysis using the demographic element as an independent variable to inspect the factors influencing self concept, sex, school year, living with parents, and economic status were statistically significant. Third, in case of entry evaluation, singing room was evaluated most positively among 10 places with a score of 4.20 and pub/drunkenness was evaluated most negatively. In case of entry experience, singing room was the most frequently experienced place and discotheque was the least. Fourth, with respect to demographic characteristics and influences of self concept, the influencing factors on entry evaluation were sex, school year, social self, and family self, and the influencing factors on entry experience were sex, school year, living with parents, social self, and family self. Finally, examination of the differences of demographic characteristics and self concept according to entry evaluation and experience, revealed the distinctive variables among the 10 harmful places to be sex, school year, living with parents, body self, social self, achievement self, scholarship self, and family self.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.22 no.2
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• pp.129-138
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• 2015

Purpose: This paper is a basic study done to establish spiritual health concepts according to Korean culture. The focus was on identifying perceived concepts of spiritual health in Korean people. Methods: The Q method, which is effective in measuring individual subjectivity, was used in this study. Results: Perception of the concept of spiritual health was found to have 3 independent types, Type I is a self-directed, present life centered type. This is a group stressing the importance of planning self-directed life and the people of this group consider the values of the present life as important. Type II is a faith-oriented, afterlife centered type. This is a group whose essence of spiritual health is religious devotion like faith in god and the people of this group do not sympathize with the oriental world view. Type III is an oriental, value-sharing type. This is a group with an oriental world view and the people of this group stress importance in sharing values with communities or others. Conclusion: These results not only become the basis for understanding the concept of spiritual health among Koreans, but also suggest the necessity of comprehensive education for spiritual health promotion.

• Journal of KIISE
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• v.44 no.1
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• pp.27-35
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• 2017

Many studies have addressed 'Adaptive User Interface (AUI)', wherein the user interface changes in accordance with the situation and the environment of each user at runtime. Nevertheless, previous papers for AUI barely reflected the viewpoints from requirements engineering field, since most of them focused on proposing the architecture and design. In this study, we outline AUI with the perspective of requirements engineering and propose the requirements elicitation and specification method based on concepts which have been researched in the area of self-adaptive system. Step by step, we first redefine and reinterpret the well-known concepts of self-adaptive software, after which the AUI requirements are elicited and specified. Finally, we illustrate a case study, which demonstrates the effectiveness of our method.

• The Journal of Korean Academic Society of Nursing Education
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• v.14 no.1
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• pp.108-116
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• 2008

Purpose: The purpose of this study was to identify the experiences of Team-Spirit training in new nurses. Method: Data was collected through open-ended and self-reported questionnaires which were received from 47 new nurses who had finished team-spirit training for 2 days. The content analysis method was used to derive the core-category, categories and concepts of Team-Spirit training for new nurses. Result: The care category identified in new nurses trained in Team-Spirit was upgrade myself and our team. The following 4 categories also emerged; companion, interdependency, importance of community, and future growth of myself and our community. The derived 12 subcategories were intimacy, importance of companions, binding, partaking in difficulties, empowerment, observing rules, cooperation, consensus, self-pledge as a subordinator, motivating vision formation, developing professionalism, contribution and devotion. The 34 concepts were derived from the new nurses' statements. Conclusion: These results imply that Team-Spirit Training for nurses could contribute to companionship, interdependency, importance of community, and future growth of oneself and the hospital team.

• Journal of the Korean Society of Clothing and Textiles
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• v.46 no.1
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• pp.63-79
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• 2022

This study investigated the phenomenon of modern people enjoying tattoo culture in Korea from the perspective of post subculture. A qualitative study was conducted using both literature review and in-depth interview methods. For post-subculture perspectives, the theories of Maffesoli (2017) and Thornton (1996), which are suitable for interpreting contemporary tattoo culture, were reviewed in terms of seven concepts: sporadic network, grouping, fluid participation, temporary emotional bond, self-distinction, pursuit of underground culture, and display and concealment. Semi-structured questionnaires were constructed and administered based on the organized characteristics. Five cultural qualities of the tattoo phenomenon in Korea were derived based on post-subculture concepts. Sporadic formation is related to the pattern of inflow into tattoo culture, and "streaming" participation is based on fluid participation and temporary ties. Distinction within subculture is based on self-distinction and pursuit of underground. The costume-playing ordinary concept includes the characteristic of controlling the exposure of tattoos in society. Finally, formation of the consumer tattoo market was newly discovered in Korean tattoo culture.

• Korean Journal of Child Studies
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• v.11 no.1
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• pp.100-114
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• 1990

The present research investigated scholastic self-concepts and attribution tendencies of institutionalized children in comparison with home-reared children. The subjects were 286 institutionalized and 327 home-reared fifth. sixth, seventh, and eighth grade children. Instruments were the Scholastic Self-Concept Test(Park. Lee. & Cho. 1980). the Attribution Tendency Test(Lee, 1983) and a questionnaire constructed by the researcher. Data were analyzed by ANOVA. Duncan's Test of Multiple Comparsion, and product- moment correlation coefficient(r). Findings showed that (1) the scholastic self-concept of institutionalized children was lower than that of home-reared children; (2) higher scholastic self-concept of institutionalized children was correlated with (i) higher degree of contentment with the institution. (ii) shorter length of residence in the institution. and (iii) older age at admission to the institution; (3) institutionalized children attributed achievement more to uncontrollable. external factors. while home-reared children attributed achievement more to controllable. internal factors; (4) institutionalized children with a lower degree of contentment with the institution attributed achievement to luck while those with a higher degree of contentment attributed achievement to ability; and (5) the higher the scholastic self-concept. the higher the tendency to attribute achievement to internal. controllable factors, and the lower the scholastic self-concept, the higher the tendency to attribute achievement to external, uncontrollable factors.

• Journal of the Korean Home Economics Association
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• v.18 no.2
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• pp.49-55
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• 1980

As the society has been capitalized, the importance of money has appeared widely. And there are many problems caused from the lack of money is supposed rather a qualitative problem happened by mismanagement of money than a quantitative. The purposes of this study are to suggest the desirable direction in money management education to adolescents and to provide some basic data to resolve the juvenile delin-quency caused from lack of money. With this purposes this study dealt with the money management behavior of adolescents with reference to self-concept, which was considered one of the influential factors to the money management behavior. Questionnaires composed with the Self-concept test (developed by Dr. chung) and the Money management test (developed by Dr. Troelstrup) were distributed to 300 high school students. 180 of them was taken as data. mean score and F-ratio were applied as statistical methods. As result, significant difference in money management behavior between the groups divided by self-concept scores were found. The higher the self-concept score is, the more desirable the money management behavior is. Here we cannclude as follow; As the money management behavior of adolescents differs with reference to the self-concept, it is possible to help the adolescents 세 develop the money management by inspiring the self-concept. And money management training as a consumer education is needed by all means at home, because it has an important effect upon the identity establishment, the major developmental task in adolescence.

• Women's Health Nursing
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• v.17 no.4
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• pp.369-377
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• 2011

Purpose: Childbirth self-efficacy plays an important role in women's ability to cope with labor and delivery. Coaching has been gaining popularity as a way to promote cognitive, emotional and behavioral change. This study aimed to test the effects of a Coaching-based childbirth program on anxiety and childbirth self-efficacy among primigravida women. Methods: The study design was a quasi-experimental pre-post design. A coaching-based childbirth program was developed synthesizing concepts and techniques from the literature on coaching and was verified by an expert panel. It consisted of four weekly 2-hour small group sessions. Pregnant women were recruited from H hospital in Seoul. Childbirth self-efficacy and state anxiety were measured before and after the program. Results: Although there was a no significant reduction in anxiety, there were statistically significant increase for childbirth self-efficacy in the experimental group when compared to the control group. Conclusion: The program appears to increase childbirth self-efficacy for pregnant women. Future studies may benefit from using mixed coaching modalities and consider measuring health behaviors and obstetric outcomes to gain insights on its long-term impact.