• Journal of Institute of Control, Robotics and Systems
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• v.22 no.10
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• pp.839-846
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• 2016

Bin picking is a task of picking a small object from a bin. For accurate bin picking, the 3D pose information, position, and orientation of a small object is required because the object is mixed with other objects of the same type in the bin. Using this 3D pose information, a robotic gripper can pick an object using exact distance and orientation measurements. In this paper, we propose a 3D vision technique for accurate measurement of 3D position and orientation of small objects, on which a paper label is stuck to the surface. We use a maximally stable extremal regions (MSERs) algorithm to detect the label areas in a left bin image acquired from a stereo camera. In each label area, image features are detected and their correlation with a right image is determined by a stereo vision technique. Then, the 3D position and orientation of the objects are measured accurately using a transformation from the camera coordinate system to the new label coordinate system. For stable measurement during a bin picking task, the pose information is filtered by averaging at fixed time intervals. Our experimental results indicate that the proposed technique yields pose accuracy between 0.4~0.5mm in positional measurements and $0.2-0.6^{\circ}$ in angle measurements.

• Journal of Korean Academy of Nursing Administration
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• v.22 no.2
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• pp.119-128
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• 2016

Purpose: The purpose of this study was to investigate the relationship among work environment of nursing, nursing organizational culture, demands at work and the emotional labor in clinical nurses. Methods: A convenience sample of 241 registered nurses was obtained from two hospitals. Data were collected by a self-administered questionnaire during December, 2014. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson correlations and multiple regression with SPSS/WIN 21.0. Results: The mean score for emotional labor was $3.36{\pm}0.48$, for work environment of nursing, $2.44{\pm}0.36$, and for innovational-orientation, $2.95{\pm}0.56$: Relation-orientation, $3.34{\pm}0.62$, Task-orientation, $2.95{\pm}0.53$, and hierarchy-orientation, $3.41{\pm}0.49$, The score for quantitative demands was $3.02{\pm}0.56$, and for work pace, $3.76{\pm}0.76$. In multivariate analysis, factors related to emotional labor were work environment of nursing, innovational-orientation and work pace. Conclusion: Findings from this study indicate the need to evaluate and improve the work environment for nurses to decrease emotional labor.

• Journal of the Korean Applied Science and Technology
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• v.40 no.5
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• pp.1092-1103
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• 2023

This study is a study to investigate how the achievement goal orientation of domestic winter sports participants has an effect on fun factors and participation satisfaction. A total of 326 questionnaires were used in this study, SPSS(Version 27.0) was used as a data processing method, and frequency analysis, reliability analysis, exploratory factor analysis, correlation analysis, and multiple regression analysis were used as statistical methods. The results of verifying the statistical effects of achievement goal tendency, fun factors, and participation satisfaction are as follows. First, as a result of verifying the effect of achievement goal orientation on fun factors, self-goal orientation and task goal propensity, which are sub-factors of achievement goal orientation, had significant effects on exercise ability, exercise utility, promotion of friendship, and self-satisfaction factors. Second, self-goal and task goal propensity, which are sub-factors of achievement goal orientation, had significant effects on facilities, costs, classes, interpersonal relationships, and health factors. Third, the sub-factors of fun factors such as exercise ability, exercise utility, promotion of friendship, and self-satisfaction had significant impacts on facilities, costs, lessons, interpersonal relationships and health factors.

• Journal of the Korea Convergence Society
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• v.8 no.6
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• pp.349-358
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• 2017

In this study, 109 athletes participating in the national fencing Epee competitions in 2017 were sampled. The purpose of this study was to investigate the effect of achievement goal orientation and self - management on psychological skills of fencing Epee athletes. The research tools used to achieve these research objectives are psychological techniques developed by Kim, Byung - joon (2001), a sports achievement goal orientation test paper, and an athlete self - management questionnaire developed by Huh Jung - hoon (2001) I used the questionnaires. The results obtained were analyzed by SPSS 22.0 program, test validity and reliability test, frequency analysis, Pearson 's correlation analysis and multiple regression analysis. First, task orientation and interpersonal management, mental management, self - orientation and training management, interpersonal management, mental management, team harmony, body management and anxiety control, mental management and team harmony have significant correlations. The relationship between goal orientation, self - management, and psychological skills was found to be correlated. Second, to analyze the effect of achievement goal orientation and self-management on psychological skills, multiple regression analysis showed that there was no statistically significant effect but the subordinate had a partial effect.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.6 no.2
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• pp.10-18
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• 1997

This paper presents the development of real-time estimation and control details for a computer vision-based robot control method. This is accomplished using a sequential estimation scheme that permits placement of these points in each of the two-dimensional image planes of monitoring cameras. Estimation model is developed based on a model that generalizes know 4-axis Scorbot manipulator kinematics to accommodate unknown relative camera position and orientation, etc. This model uses six uncertainty-of-view parameters estimated by the iteration method. The method is tested experimentally in two ways : First the validity of estimation model is tested by using the self-built test model. Second, the practicality of the presented control method is verified in performing 4-axis manipulator's assembly task. These results show that control scheme used is precise and robust. This feature can open the door to a range of application of multi-axis robot such as deburring and welding.

• Korean Journal of Adult Nursing
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• v.21 no.1
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• pp.129-139
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• 2009

Purpose: This study was to identify the perceptions of nursing student on the clinical practice environment and related variables. Methods: The subjects of this study were 180 nursing students from a college participated in clinical practice at four regional hospitals. Data was collected with the questionnaire tool for the perceptions of clinical practice environment. Results: The students highly satisfied in the major had significantly high perception in innovation, personalization, student involvement, and clinical practice satisfaction. The students with a low level of stress and a clearly named guidance nurse were significantly high in the perceptions of task orientation, innovation, personalization, student involvement, and practice satisfaction. Clinical practice environment variables such as task orientation, innovation, individualization, personalization, student involvement, and practice satisfaction were significantly correlated with each other. In student characteristics, the main variables directly influencing the perceptions of clinical practice environment were religion, the level of stress, and the method of guidance. Conclusion: Understanding the students' perspective would be valuable for promoting a positive clinical practice environment. Developing a cooperative system between the college and educational hospitals is necessary for effective clinical practice education.

• Journal of Korean society of Dental Hygiene
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• v.24 no.1
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• pp.35-43
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• 2024

Objectives: Previous research on turnover has been conducted from the organization's perspective. However, for the long-term retention of dental hygienists, it is necessary to conduct research from an individual's perspective. The purpose of this study is to examine the impact of achievement motivation on the intention to stay of dental hygienists. Methods: This study conducted an online survey targeting dental hygienists working in dental healthcare institutions, using convenience sampling from September, 2023. The analysis included 152 participants with long-term work experience and 121 participants with shorter work experience. Multiple regression analysis was conducted to identify factors influencing retention intentions (PASW Statistics ver. 23.0, p<0.05). Results: Factors influencing intention to stay for long-term dental hygienists included the number of dental hygienists and achievement motivation (responsibility, challenge, task orientation), with a significant impact (adj. R²=0.317). For shorter-term dental hygienists, achievement motivation (challenge, task orientation) demonstrated a significant impact (adj. R²=0.164). Conclusions: It was observed that intrinsic factors, particularly achievement motivation, had a significant impact on intention to stay. Consequently, exploring strategies to satisfy intrinsic motivation, such as achievement motivation, is deemed necessary.

• Korean Journal of Culture and Social Issue
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• v.8 no.2
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• pp.77-103
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• 2002

The goal of this study was to examine the effects of male gender role on the adjustment of Korean men. In study 1 Korean Male gender Role Scale was developed. A 52-item scale was constructed based on the responses of 432 college-aged and middle-aged men to theoretically-derived preliminary items. Five factors were extracted: achievement orientation, the initiative, task orientation, responsibility for family and friendship with male friends. Study 2 examined the relationship between male gender role and several adjustment variables. Correlational analyses indicated that in the college men self-esteem and career identity were positively correlated with the initiative and friendship with male friends was positively correlated with life satisfaction. College men's depression level was negatively correlated with the initiative and task orientation. Among the middle-aged men, self-esteem was also positively correlated with the initiative and task orientation. But responsibility for family was positively correlated with depression and job dissatisfaction in the middle-aged men. In both groups satisfaction with male gender role was positively correlated with self-esteem and life satisfaction but negatively correlated with depression. Finally, limitations of this study and direction of future research were discussed.

• Journal of Korean Academy of Nursing Administration
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• v.9 no.2
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• pp.159-170
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• 2003

Purpose : This study is to confirm the relation of the value orientation of the nursing unit manager and the job satisfaction and organizational commitment of the nursing unit nurse. Method : We used the systematic questionnaires as a study tool. The contents were composed of 46 questions in total such as 4 questions of general feature, 23 value-oriented questions, 10 job satisfaction questions, and 9 organizational commitment questions. The period of data collection was from August to September 2000. Result : 1) The value of flexibility was 3.82 points (${\pm}.3788$), which is above average. The values of equalitarianism was 3.37 points (${\pm}.4422$), which is above average. 2) The leadership pattern according to the value orientation perceived by the head nurses in 6 clusters has been divided into 3 patterns of change-oriented leader, task-oriented and stability-oriented leader. 3) The nurses who worked with the change-oriented leader showed higher values of job satisfaction (F=5.941, p=O.003), and affective commitment (F=5.793, p=O.003) than those who worked with the stability-oriented leader. Conclusion : As revealed in this study, we think that we have to consider that the change-oriented leader can produce higher performance of an organization than the stability-oriented leader, and write the basic data for the educational courses of leadership development or workshops etc. in order for the nursing unit managers to play their roles for the effective ward-unit management.

• Science of Emotion and Sensibility
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• v.21 no.2
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• pp.125-136
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• 2018

Although atypical sensory processing is a core feature of autism spectrum disorder (ASD), there is considerable heterogeneity among ASD individuals in the modality and symptoms of atypical sensory processing. The present study examined visual processing of children with ASD, focusing on the complexity and orientation of visual information. Age- and -IQ-matched Korean children (14 ASD and 14 typically-developing (TD) children) received an orientation discrimination task involving static spatial gratings varied in complexity (simple versus complex) and orientation (horizontal versus vertical). The results revealed that ASD children had difficulty perceiving complex information regardless of orientation, whereas TD children had more difficulty with vertical gratings than horizontal gratings. Thus, group-level differences between ASD and TD children appeared greater when gratings were presented horizontally. Unlike ASD adult literature, however, ASD children did not show superior performance on simple gratings. Our findings on typical and atypical processing of ASD children have implications for both understanding the characteristics of ASD children and developing diagnostic tools for ASD.