• Title/Summary/Keyword: Joint working

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A Design of JCM(Joint Constraint Map) for the Collision Avoidance of Two Robots (두 로보트의 충돌 회피를 위한 조인트 제한 지도(JCM) 의 구성)

  • Nam, Yun-Seok;Lee, Bum-Hee;Ko, Myoung-Sam
    • Proceedings of the KIEE Conference
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    • 1988.07a
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    • pp.945-949
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    • 1988
  • In this paper, collision avoidance of two robots working in a common workspace is described. The workspace for a two robot system is defined and classified. JCM (Joint Constraint Map) is designed which shows the region of joint values that must be avoided for collision free motion, and application of the JCM is studied.

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Effects of sitting and standing posture on the compressive forces at L5/S1 disc (입식과 좌식 작업 자세가 L5/S1 Disc의 하중에 미치는 영향)

  • 황도연;박경수
    • Journal of the Ergonomics Society of Korea
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    • v.11 no.2
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    • pp.3-13
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    • 1992
  • Resultant compressions on the L5/S1 joint of six subjects were studied as they lif- ted light weights in sitting and standing work postures. The subjects activities were photographed and analysed later by a static biomechamical computer model. Statistically significant differences were found between the result of the two postures analyses. Sitting posture showed significantly high compressions on the joint when doing several material handling tasks having the same work loads from the hip joint. Therefore, it is recommended that working with light weights in standing is less hazardous than doint the same work sitting postures, although both the maximum compression forces are under the Action Limit suggested by NIOSH.

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Influence of Workplace Bullying and Resilience on Organizational Socialization in New Graduate Nurses (신규간호사의 직장 내 괴롭힘 경험과 회복탄력성이 조직사회화에 미치는 영향)

  • Jo, Eun Ah;Kang, Jiyeon
    • Journal of muscle and joint health
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    • v.22 no.2
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    • pp.78-86
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    • 2015
  • Purpose: The purpose of this study was to identify the impact of workplace bullying experience and resilience on the organizational socialization among new graduate nurses. Methods: This is a descriptive correlational study with 148 new graduate nurses working in the hospitals in B city of Korea. The instruments that were used for measuring main variables were the negative acts questionnaire-revised (NAQ-R), the Korean version of the Connor-Davidson resilience scale (CD-RISC), and the measurement tool for new nurses' organizational socialization. Results: The prevalence of workplace bullying was 22.3%, and the subjects reported moderate level of resilience. Significant negative correlations between workplace bullying and resilience, and organizational socialization were found. A significant positive correlation was found between resilience and organizational socialization. As a result of multiple regression analysis, resilience, workplace bullying, and a working in desired unit turned out to be variables that explained new graduate nurses' organizational socialization (adjusted $R^2=.514$, p<.001). Conclusion: The results of this study suggested that new graduate nurses with higher resilience and less experience of workplace bullying would show higher organizational socialization. Further research is needed to identify the regulation effect of resilience in between workplace bullying and organizational socialization.

A Postural Classification Scheme of Upper Body for Females for Quantifying Postural Load of Working Postures (자세 부하 측정을 위한 상체에 대한 여성의 자세 분류 체계)

  • Kee, Dohyung
    • Journal of Korean Institute of Industrial Engineers
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    • v.28 no.2
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    • pp.223-231
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    • 2002
  • Recently, work-related musculoskeletal disorders(WMSDs) have rapidly increased and have been a major issue in the field of industrial safety. Of several physical risk factors for WMSDs, which include postures, vibration, repetitive work, speed or acceleration of movements, etc., awkward postures have been known as one of the major causes of WMSDs. For reducing the potential for injury as a result of postures, cost effective quantification of the magnitude for physical exposure to poor working postures is important and needed. To do this, several postural classification schemes have been developed and used in industrial sites. It is known that perceived discomfort for joint motions and muscle strength for females were much less than those for males. However, the existing postural classification schemes were developed without considering these gender effects. This study aims to develop a new postural classification scheme for female workers, based on the perceived discomfort for joint motions. The result showed that there was significant difference between the schemes for female and male. It was also found that when compared with OWAS, RULA and REBA, postural load was quantified more precisely with the developed scheme. It is recommended that different schemes according to gender of workers involved in work be used in order to accurately evaluate postural load of work postures.

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.

Job Analysis of the Nurses Who Work in Customized Visiting Health Care Services using DACUM Technique (맞춤형 방문건강관리사업 내 방문간호사의 직무분석)

  • Nam, Hye Kyung;Cho, Kyung Sook
    • Journal of muscle and joint health
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    • v.22 no.3
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    • pp.205-218
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    • 2015
  • Purpose: This study was performed to analyze the visiting nurses' job using Developing a curriculum (DACUM). Methods: The DACUM committee with 6 visiting nurses participated in the workshop. In this workshop, the visiting nurses role was defined and their duties and tasks were identified. After content validation via the experts, the pilot test was conducted to 78 nurses. Results: A total of 13 duties and 82 tasks were identified on the DACUM chart which represented the importance, difficulty, and frequency of tasks with alphabet A, B, and C as its higher degree. Regarding duties, 'visiting nursing for high risk group' is the highest, while the lowest was 'public welfare events'. Regarding to tasks, 'discovering a new patient' was the highest, while 'selecting patients and offering medical supplies (nutritional supplement, patch)' was the lowest one. Conclusion: The results showed that visiting nurses working in the visiting health care service center were doing more various duties and tasks than those working according to 'Act on Long-term Care Insurance for the Aged'. The results can be used to develop training programs for visiting nurses and evaluation-scale of their job performance.

Partnerships for joint product development between fashion companies and artists - focusing on exploratory factor analysis and structure equation model analysis - (패션기업과 아티스트 간의 공동상품화를 위한 파트너쉽에 관한 연구 - 탐색적 요인분석, 구조방정식 모형분석을 중심으로 -)

  • Choi, So-Ra;Chung, Sung Jee;Kim, Dong-Geon
    • Journal of the Korea Fashion and Costume Design Association
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    • v.21 no.1
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    • pp.47-57
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    • 2019
  • The purpose of the study was to explore effective satisfaction factors for continuous partnerships between fashion companies and artists. A questionnaire was developed by the researchers and results were collected from a total of 273 people who were working for a fashion company or working as an artist. Data was analyzed by the use of a frequency test, a reliability test, an exploratory factor analysis and a structure equation model analysis using AMOS 18.0. The results of the study were as follow. First, profitability and adequacy had significant effects, but awareness had no effect on confidence concerning the partnership. Second, awareness and profitability showed significant effects, but adequacy showed no effect on the flow among those in the partnership. Third, confidence had a significant effect on flow. Fourth, among the partnership factors, confidence and flow had significant effects on partnership satisfaction. Fifth, flow showed a significant effect on the intent for a continuous partnership, but confidence showed no effect.

Triage Nurses' Work Experiences in Emergency Department: A Qualitative Research (응급실 중증도 분류 간호사의 업무 경험: 질적 연구)

  • Park, Yu Jin;Kong, Eun-Hi;Park, Young A
    • Journal of muscle and joint health
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    • v.25 no.3
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    • pp.176-186
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    • 2018
  • Purpose: The purpose of the study was to describe work experiences of triage nurses working at emergency departments in Korea. Methods: A qualitative descriptive research method was used. Twenty-one nurses of emergency department participated in the first interview and 16 of them participated in the second interview. Data were collected through in-depth interviews and field notes. Qualitative content analysis was utilized to analyze the data. Results: Forty-eight codes, 12 categories, and six themes emerged from the data analysis: caring on the frontline, burden as an initial evaluator, handling things alone, lack of others' understanding, becoming an expert, and needs for improvement. Participating triage nurses faced many challenges and difficult situations in emergency departments. They felt burden and loneliness as initial evaluator. Also, they felt pride in their work and struggled to become a professional. Conclusion: This study is the first qualitative study that has focused on exploring the experiences of triage nurses in emergency departments in Korea. The results provide description and in-depth understanding of working experiences of triage nurses. The results provide valuable fundamental data for regulation, clinical practice, education, and research for triage nurses in Korean emergency departments.

Reasons, Incidences, and Influencing Factors of Work Interruptions in Intensive Care Unit Nurses (중환자실 간호사에게 발생하는 업무 흐름 중단 이유와 발생빈도 및 영향요인)

  • You, Jung Eun;Lee, Eun Nam
    • Journal of muscle and joint health
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    • v.27 no.3
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    • pp.247-254
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    • 2020
  • Purpose: This was a descriptive observational study examining the reasons for, frequency of, and factors affecting work interruption among intensive care unit (ICU) nurses. Methods: Convenience sampling was used to recruit 46 regular nurses who had been working in an ICU at D tertiary hospital in B metropolitan city for at least six months. To measure the degree of work interruption, this study revised a tool used by Brixey et al. (2007) for analyzing the type of work interruption. Results: A total of 1,787 work interruptions occurred during 368 hours of observation, i.e., at an average of 4.85 times per hour. Communication-related factors caused work interruption most frequently, followed by environmental, work-related, and personal factors. As for the work-related characteristics of nurses, participants experienced work interruption more frequently while working on weekdays, when the medical staff were stationed, than on weekends. Conclusion: ICU nurses experienced work interruption frequently. With the health care system expected to become more complicated in the future, efforts should be made to reduce unnecessary work interruptions to improve the operation efficiency of ICUs.

Development of a 2D Posture Measurement System to Evaluate Musculoskeletal Workload (근골격계 부하 평가를 위한 2차원 자세 측정 시스템 개발)

  • Park, Sung-Joon;Park, Jae-Kyu;Choe, Jae-Ho
    • Journal of the Ergonomics Society of Korea
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    • v.24 no.3
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    • pp.43-52
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    • 2005
  • A two-dimensional posture measurement system was developed to evaluate the risks of work-related musculoskeletal disorders(MSDs) easily on various conditions of work. The posture measurement system is an essential tool to analyze the workload for preventing work-related musculoskeletal disorders. Although several posture measurement systems have been developed for workload assessment, some restrictions in industry still exist because of its difficulty on measuring work postures. In this study, an image recognition algorithm was developed based on a neural network method to measure work posture. Each joint angle of human body was automatically measured from the recognized images through the algorithm, and the measurement system makes it possible to evaluate the risks of work-related musculoskeletal disorders easily on various working conditions. The validation test on upper body postures was carried out to examine the accuracy of the measured joint angle data from the system, and the results showed good measuring performance for each joint angle. The differences between the joint angles measured directly and the angles measured by posture measurement software were not statistically significant. It is expected that the result help to properly estimate physical workload and can be used as a postural analysis system to evaluate the risk of work-related musculoskeletal disorders in industry.