• Title/Summary/Keyword: self-adaptation

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Development of a Machining System Adapted Autonomously to Disturbances (장애 자율 대응 가공 시스템 개발)

  • Park, Hong-Seok;Park, Jin-Woo
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.4
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    • pp.373-379
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    • 2012
  • Disruptions in manufacturing systems caused by system changes and disturbances such as the tool wear, machine breakdown, malfunction of transporter, and so on, reduce the productivity and the increase of downtime and manufacturing cost. In order to cope with these challenges, a new method to build an intelligent manufacturing system with biological principles, namely an ant colony inspired manufacturing system, is presented. In the developed system, the manufacturing system is considered as a swarm of cognitive agents where work-pieces, machines and transporters are controlled by the corresponding cognitive agent. The system reacts to disturbances autonomously based on the algorithm of each autonomous entity or the cooperation with them. To develop the ant colony inspired manufacturing system, the disturbances happened in the machining shop of a transmission case were analyzed to classify them and to find out the corresponding management methods. The system architecture with the autonomous characteristics was generated with the cognitive agent and the ant colony technology. A test bed was implemented to prove the functionality of the developed system.

The Role of Job Satisfaction in the Relationship between Job Stress and Organizational Commitment among Nurses in Small-sized General Hospitals (소형종합병원 간호사의 직무스트레스와 조직몰입의 관계에서 직무만족의 역할)

  • Choi, Hyun-Ju
    • The Korean Journal of Health Service Management
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    • v.10 no.2
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    • pp.35-48
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    • 2016
  • Objectives : The purpose of this study was to analyze the effects of job stress on organizational commitment among nurse working in small sized general hospitals and determine moderating effects of job satisfaction. Methods : A self-report questionnaire survey was completed by 292 nurses working at five small sized hospitals in P and K. Data were collected during March 2015 and analyzed with the SPSS 21.0 program. Results : Job satisfaction was a positive factor in organizational commitment. Job satisfaction had significant moderating effects on the relationship between job stress and organizational commitment of nurses working in small sized general hospitals. Conclusions : The results of this study indicate that various job stresses and job satisfaction have a significant effect on the organizational commitment of nurses working in small sized general hospitals. Therefore, to decrease the job stress and increase the job satisfaction of nurses working in small sized general hospitals, consideration must be given to improving the financial and psychological rewards as well as providing differentiated job training. To reduce the psychological burden of nurses, it is necessary to develop adaptation programs of nurses.

Relationships among Daily Hassles, Social Support, Entrapment and Mental Health Status by Gender in University Students (성별에 따른 대학생의 일상적 스트레스, 사회적 지지, 속박감 및 정신건강의 관계)

  • Cheon, Suk-Hee
    • Women's Health Nursing
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    • v.18 no.3
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    • pp.223-235
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    • 2012
  • Purpose: This study was designed to examine the relationships among daily hassles, social support, entrapment and mental health status in relation to gender in university students. Methods: Data were collected via a self- administered questionnaire from 118 male and 98 female college students in Kangwon province. Data were analyzed using SPSS/WIN 18.0 program for descriptive statistics, t-test, ANOVA, Pearson correlation, and stepwise multiple regression. Results: There were significant differences in daily hassles, entrapment and depression between male and female group. Also, there were significant relationship between entrapment and mental health status (i.e. depression, anxiety, hostility, somatization) in both groups. In male students, internal entrapment was the significant predictor of depression and anxiety, and external entrapment was the significant predictor of hostility and somatization whereas, in female students external entrapment was the significant predictor of depression, and internal entrapment was the significant predictor of anxiety, hostility and somatization. Conclusion: These results suggest that entrapment is an important factor for psychological maladaptation due to stressful life events. Therefore, strategies that reduce perception of entrapment according to gender should be developed for psychological adaptation.

On autonomous decentralized evolution of holon network

  • Honma, Noriyasu;Sato, Mitsuo;Abe, Kenichi;Takeda, Hiroshi
    • 제어로봇시스템학회:학술대회논문집
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    • 1994.10a
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    • pp.498-503
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    • 1994
  • The paper demonstrates that holon networks can be used effectively for identification of nonlinear dynamical systems. The emphasis of the paper is on modeling of complicated systems which have a great deal of uncertainty and unknown interactions between their elements and parameters. The concept of applying a quantitative model building, for example, to environmental or ecological systems is not new. In a previous paper we presented a holon network model as an another alternative to quantitative modeling. Holon networks have a hierarchical construction where each level of hierarchy consists of networks with reciprocal actions among their elements. The networks are able to evolve by self-organizing their structure and adapt their parameters to environments. This was achieved by an autonomous decentralized adaptation algorithm. In this paper we propose a new emergent evolution algorithm. In this algorithm the initial holon networks consists of only a few elements and it grows gradually with each new observation in order to fit their function to the environment. Some examples show that this algorithm can lead to a network structure which has sufficient flexibility and adapts well to the environment.

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A Phenomenological Study on Smoking Experience among Female College Students (여대생의 흡연 경험에 대한 현상학적 연구)

  • Jeong, Jin-Hong;Jeon, Eun-Ju;Lee, Jung-Hee;Han, Ji-Youn;Kim, Young-Suk;Won, Young-Soon;Seo, Mi-A
    • Korean Journal of Health Education and Promotion
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    • v.27 no.3
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    • pp.1-12
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    • 2010
  • Objectives: This study was to understand the essence and the meanings of smoking experience in female undergraduate students. Methods: Colaizzi's phenomenological method was used. Data were collected by in-depth interviews with six undergraduate female students. Field notes, recording under the subjects' agreement, and telephone interview were also used. Results: In the analysis, 131 significant statements, 15 themes, 7 categories emerged. The seven categories were as follows; 'the first smoking for change and adaptation', 'becoming a part of self', 'good friend without any reason', 'a bond with friends', 'gazing with bad eyes', 'unexpected guest without realizing it', 'willingness to smoke more'. Conclusion: The results of this study will help professionals to understand the smoking behavior of female undergraduate students. We should consider positive experience toward smoking in young women for considering to plan smoking cessation program.

An Exploration of Factors Influencing College Students' Academic and Social Adjustment

  • Lee, Jee Young
    • International Journal of Advanced Culture Technology
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    • v.4 no.4
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    • pp.13-22
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    • 2016
  • The purpose of this study is to identify the characteristics of school life and to examine the influencing factors of academic adjustment and social adjustment in university students. This cross-sectional descriptive study by using secondary data from 2,064 subjects who responded to a self-rated student adjustment test. Descriptive, t-test, ANOVA, Pearson correlation and multiple regression analyses were conducted. Satisfaction with college selection, expectation for college, satisfaction with college service, emotional stability, and relationships with faculty were significantly higher among male students, whereas confidence in major, support from others were significantly higher among the female students. There was a significant positive relationship between academic adjustment and confidence in major, and between social adjustment and expectation for college. Confidence in major, relationships with faculty, emotional stability, expectation for college, satisfaction with college selection, and commitment to college life accounted for 31.8% of the variance in academic adjustment. In addition expectation for college, emotional stability, support from others, gender, commitment to college life, and satisfaction with college services accounted for 44.7% of the variance in social adjustment for university students. Overall, the results of this study suggest that understanding the levels of expectation for college, commitment to college life, and levels of emotional stability may be important for facilitating their transition and adjustment to university life.

Multicultural Family Adolescents: Their Acceptance of Korean Culture and Adaption to Korean School Life (다문화 가정 청소년의 한국문화수용성과 학교생활적응에 관한 연구)

  • Oh, Kyung-Wha
    • Journal of the Korean Home Economics Association
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    • v.49 no.9
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    • pp.83-97
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    • 2011
  • The effect of an adolescent's being in a multicultural family, including the psychological, cultural, and situational characteristics of this experience, in terms of how it impacts acceptance of Korean culture, social competence, and educational adaptation was investigated. 120 multicultural family adolescents who were enrolled in Seouland Gyeonggi-do middle and high schools were surveyed. The results were analyzed by the PASW Statistics v18 program. Firstly, it was found that the psychological, cultural, and situational characteristics of multicultural family adolescents were significantly affected by family's general economic level and their mother's occupation and nationality. Secondly, multicultural family adolescents with higher self-perception, good accommodation of crosscultural attitudes in Korean culture and more relationships with Koreans tended to adapt to Korean culture more easily. Thirdly, multicultural family adolescents who adapted to Korean culture more easily could also adapt to school life well, and those who had better interpersonal relations and more advanced problem-solving skills had better relationships with school friends.

The Influence of Gamers' Characteristics on the Emergent Party Play: Based on Organizational Citizenship Behavior Theory (게이머 특성이 창발적 파티 플레이에 미치는 영향 - 조직시민행동 이론을 중심으로 -)

  • Ahn, Ji Hoon;Choi, Chris Seoyun
    • Journal of Korea Game Society
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    • v.14 no.4
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    • pp.7-16
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    • 2014
  • This empirical study is to investigate the influence of MMORPG player's social as well as individual characteristics on the emergent party play. First, we have tested our research model by surveying 231 active players of Lineage 2. The results demonstrate that both the personal values, such as self-efficacy and job satisfaction, and also the organizational values, such as task interdependence and trust, have significant influences on the organizational citizenship behaviors among the party players. This study suggests both theoretical and practical implications on how to encourage gamers' altruistic concern and organizational adaptation in MMORPG.

Affecting Factors of New Nurse's Intention to Retention in Hospitals (신규간호사의 재직의도 영향요인)

  • Son, Haeng-Mi;Lee, Eun Hee;Cho, Kyung Sook
    • Journal of muscle and joint health
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    • v.24 no.3
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    • pp.205-216
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    • 2017
  • Purpose: The purpose of this study is to investigate relationship among intention to retention, role conflicts, psychosocial job conditions and job satisfaction of new nurses, and identify affecting factors for intention to retention. Methods: Data were collected from 136 new nurses who were graduated at 2016 and working now in general hospitals by self-reported questionnaire. The relationship among variables were analyzed with Pearson's coefficient correlation and affecting factors for intention to retention were identified by using multiple linear regression analysis. Results: The mean score of intention to retention was $2.63{\pm}0.28$. Intention to retention was significantly different by the working ward, hope period for work, and reason for retention. Intention to retention had positive relationships with work organization and job contents, and job satisfaction, but negative relationships with frequency of role conflict, demands at work. Job satisfaction and meaning of work identified as influencing factors inn intention to retention. Conclusion: It is needed a positive hospital environment to improve adaptation in clinical nursing practice and to emphasize professionalism including value of nursing and meaning of nurses' work for new nurses.

The Concept Analysis of Motherhood (간호이론개발을 위한 개념 분석 : 어머니됨)

  • Kim, Young-Hee
    • Women's Health Nursing
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    • v.4 no.2
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    • pp.245-257
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    • 1998
  • The characteristics of health behavior related pregnancy and childbirth have reflected on the cultural belief and value in the society. The efforts for women's health promotion through the current illumination of the traditional health care are the prompting assignment to be in nursing. The process of motherhood already progress before the motherhood actually. The functional state as the expectant mother can be the important predicting factor of the postpartum state, the quality of a married life. Motherhood was analyzed by Walker and Avant's method to clarify the concept 'to be a mother' using the various concepts like Koreans' Taekyo, transition to motherhood, maternal identity, maternal role attainment, maternal fetal attachment, and maternal fetal interaction. Upon the concept analysis, naturalness, responsibility, attachment, readiness, controllability were identified as the defining characteristics of motherhood. The antecedents of motherhood were consist of maternal affection, positive self esteem, pregnancy acceptance, fetus recognition and the consequences of motherhood were consist of positive maternal identity, maternal fetal attachment, confidence about the maternal role, the healthy mother and the healthy baby. The empirical referents of motherhood were consists of recognition of motherhood, expectation about motherhood, fetal recognition with ultrasonography and fetal movement, experience of unification between mother and fetus, expression of affection to the fetus, concern about fetal health, concern and practice about Taekyo, adaptation behavior about physical change and discomfort due to pregnancy. Therefore it is necessary to develop the instruction program of motherhood including the defining attributes identified in this study.

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