• Journal of the Korean Society for Precision Engineering
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• v.34 no.2
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• pp.115-123
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• 2017

This paper presents the design and the control performance of a novel dynamic compliant-arm support with parallel elastic actuators that was developed to assist with the daily living activities of those whose arms are compromised by muscular disease or the aging process. The parallel elastic-arm support consists of a compliant mechanism with combined passive and active components for human interaction and to reach the user's desired positions. The achievement of these tasks requires impedance control, which can change the virtual stiffness, damping coefficients, and equilibrium points of the system; however, the desired-position tracking by the impedance control is limited when the end-effector weight varies according to the equipping of diverse objects. A prompt algorithm regarding weight calibration and friction compensation is adopted to overcome this problem. A result comparison shows that, by accurately assessing the desired workspace, the proposed algorithm is more effective for the accomplishment of the desired activities.

• Plant Journal
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• v.8 no.2
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• pp.52-58
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• 2012

Pipe means the connection of the tube in order to transfer fluid from one device to another device. The piping stress analysis is to analyze the structural stability considering the location and the features of piping support after completing the piping design, The allowable stresses comply with the requirements of the relevant standards by examining whether the support of the function and location of pipe or re-operation is confirmed. Allowable stresses are to make sure that the maximum stress should not exceed the allowable stress presented in the ASME B31.1 POWER PIPING code. ASME B31.1 POWER PIPING code ensures a smooth stress analysis can be performed during the initial pipe stress analysis as provided in the case of straight pipe to the horizontal distance between the supports. However, because there is no criteria set in the case of curved pipe, the optimum pipe supporting points were studied in this paper. As mentioned about the curved pipe, loads applied to the support of the position of 17% and 83% of the position relative to the elbow part have results similar to the load acting on the support of straight pipe.

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.3
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• pp.375-379
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• 2010

The support vector machine (SVM) has been widely used in variety pattern recognition problems applicable to recommendation systems due to its strong theoretical foundation and excellent empirical successes. However, SVM is sensitive to the presence of outliers since outlier points can have the largest margin loss and play a critical role in determining the decision hyperplane. For robust SVM, we limit the maximum value of margin loss which includes the non-convex optimization problem. Therefore, we proposed the design method of robust SVM using genetic algorithm (GA) which can solve the non-convex optimization problem. To demonstrate the performance of the proposed method, we perform experiments on various databases selected in UCI repository.

• The Journal of the Korea Contents Association
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• v.14 no.4
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• pp.180-188
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• 2014

The purpose of this study was to analyze the effect that the social support for social welfare workers who are the key personnel providing the service to children directly at local child care center would have on job satisfaction. For this study, the social welfare workers of local child care center in Jeollanam-do were surveyed. A total of 240 questionnaires which had been collected were used for analysis. This study analyzed the effect of social support on job satisfaction by defining the demographic characteristics of social welfare workers as the control variables. The results of the analysis showed that the social support had the greatest influence on job satisfaction. Such results suggest that the stronger social support for social welfare workers would increase the job satisfaction of social welfare workers. Based on the results of the analysis, the following recommendations are presented which can help increase social support for social welfare workers: First, it is necessary to standardize the works of social welfare workers at local child care center and provide them with specialized training and education. Second, additional points should be granted to excellent local child care centers. Third, a cooperation system needs to be established which links the networks of colleagues and local societies.

• Journal of Hospice and Palliative Care
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• v.15 no.1
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• pp.36-39
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• 2012

Purpose: Cancer patients require emotional, financial and practical support as well as information/advice regarding their illness. This study aims to explore opportunities and barriers for the provision of the social support services in Australia and Korea. Methods: The survey was carried out by an email questionnaire for social workers in Australia and Korea, and collected data were analyzed using a thematic analysis by Braun and Clarke. Results: In Australia and Korea, various types of social support were available for cancer patients. However, social support for cancer patients should be better understood first in Korea, and more personalized support is needed in Australia. Conclusion: These findings will ultimately help to improve social support services for cancer patients in Korea an Australia, through grasping the current state and making up for the weak points.

• Journal of Family Resource Management and Policy Review
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• v.23 no.3
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• pp.133-148
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• 2019

This study aimed to explore the moderating effect of family support resources on family caregiver burden as it in turn affects psychological well-being among middle-aged working mothers. Through purposive sampling, the study recruited 325 married employed mothers age 40-50 years who live in Seoul and who have more than 1 child and living parents or parents-in-law. The investigation was performed April 1-30, 2018, with the participants sampled from companies, schools and religious organizations in Seoul. The collected data were statistically analyzed using the SPSS 21.0 package. The results of this study were as follows: First, of all categories of caregiver burden, the score for burden of caring for elderly parents was 3.01 (SD = .81), slightly higher than the median of 3 points; childcare burden scored 3.16 (SD = .73), also higher than the median value; and family support resources scored 3.40 (.89), higher than the median of 3. Overall psychological well-being rated 3.25 (SD = .56). Second, health and educational level, the burdens of caring for elderly parents and childcare and family support resources were found to significantly affect psychological well-being. Third, family support resources, a moderating variable, were found to significantly moderate and ease the effect of childcare burden on middle-aged working mothers' psychological well-being. Furthermore, in the analysis of their moderating effect, family support resources were confirmed to positively affect psychological well-being by moderating childcare burden experienced by middle-aged working mothers.

• Korean Journal of Community Nutrition
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• v.17 no.2
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• pp.194-204
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• 2012

The purpose of this study was to investigate school dietitians' satisfaction with and needs for School Meal Service Support Centers. A web-based on-line survey was conducted with 1,102 nutrition teachers or school dietitians using four School Meal Service Support Centers during the summer of 2011. The data from 578 respondents (52.5%), consisting of 165 (44.4%), 334 (53.4%), 41 (67.2%), and 38 (86.4%) dietitians using Seoul, Gyeonggi, Suncheon and Gyeongju centers, respectively, were analyzed. The main reason for using the centers was subsidies from local governments. The dietitians using the metropolitan centers, which were Seoul and Gyeonggi centers, tended to buy agricultural products through the centers only, and those using local centers, which were Suncehon and Gyeongju centers, bought those products from the private suppliers as well as from the centers. The dietitians' overall level of satisfaction with the centers was not high showing 3.3 out of 5 points; it was significantly associated with the operating system and services of the centers such as system efficiency, delivery accuracy, communication, and information provision rather than the agricultural products provided by the centers. The dietitians preferred joint operation of the centers by local governments and producers' groups. They wanted School Meal Service Support Centers to be evaluated every year. It was suggested that efforts should be made to improve the operation system and service of School Meal Service Support Centers for improving dietitians' satisfaction with the centers. In addition, an evaluation system for School Meal Service Support Centers should be implemented soon based on school dietitians' needs.

• Journal of Korean Biological Nursing Science
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• v.24 no.3
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• pp.200-207
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• 2022

Purpose: Medication adherence in older adults with multimorbidity is critical for self-care. The purpose of this cross-sectional study was to identify the factors that influence medication adherence in older adults with multimorbidity. Methods: The patients were 116 adults 65 or older with three or more chronic diseases. The data were collected from December 2020 to April 2022 in outpatient clinics at a hospital in Daejeon. Results: The mean scores of depression, social support, and medication adherence were 16.18± 6.74 (of 30), 41.06± 6.56 (of 60), and 4.69± 1.85 (of 8) points, respectively. Patients with low adherence comprised the most with 75 patients (64.7%). Influencing factors on medication adherence were depression (β= -.35, p= .007) and family support among social support (β= .29, p= .006). Conclusion: Among older adults with multimorbidity, lower depression as well as higher family support, results in higher medication adherence. It is necessary to develop a practical strategy toward improving medication adherence, by sensitively managing the degree of depression, as well as strengthening family support.

• Journal of the Korean GEO-environmental Society
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• v.24 no.1
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• pp.37-44
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• 2023

In this study, the performance of the support modular system, as substructure of the proposed sustainable-perpetual modular road system to reduce road construction time and maintenance costs was evaluated. A modular road system consisting of 4 support modular cross-beams with a lower curved surface was constructed on the test-bed. Six load cells and eight LVDTs were installed in the center part of two cross-beam support modular systems. Two loads, 50kN and 100kN, were applied to 15 points on the pavement slab to measure the load and displacement occurring in the modular road system. The measured displacements were less than 1 mm, so it is considered that there was no problem in the stability of the actual road. When comparing the two applied loads and the measured loads in the field test, it was considered that the load transmitted to the ground under the support modular system is very small. It is considered that the modular road system with the support modular system is applicable to the actual road site.

• The Mathematical Education
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• v.61 no.1
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• pp.127-156
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• 2022

This study used the data of students from the 6th grade to the 3rd grade of middle schoolin the Korean Educational Longitudinal Study 2013 and classified them into subgroups with similar longitudinal changes in math academic achievement. In addition, the influence of longitudinal changes in the group's academic self-concept and teachers and parents academic support on the longitudinal changes in math academic achievement were analyzed, either directly or indirectly. As a result of the analysis, it was found that the academic self-concept of each group had a positive influence on the academic achievement in mathematics. In addition, the academic support of teachers and parents was found to have a positive influence on the academic achievement in mathematics through the mediating of the academic self-concept. In terms of direct and indirect influence on academic self-concept and math vertical scale scores, it was found that teachers' academic support had more influence than parents' academic support. The educational implications of these points were discussed.