• Nuclear Engineering and Technology
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• v.55 no.1
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• pp.131-143
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• 2023

Constitutive equations in a nuclear reactor safety analysis code are mostly empirical correlations developed from experiments, which always accompany uncertainties. The accuracy of the code can be improved by modifying the constitutive equations fitting wider range of data with less uncertainty. Thus, the sensitivity of the code with respect to the constitutive equations is evaluated quantitatively in the paper to understand the room for improvement of the code. A new methodology is proposed which first starts by dividing the thermal hydraulic conditions into multiple sub-regimes using self-organizing map (SOM) clustering method. The sensitivity analysis is then conducted by multiplying an arbitrary set of coefficients to the constitutive equations for each sub-divided thermal-hydraulic regime with SOM to observe how the code accuracy varies. The randomly chosen multiplier coefficient represents the uncertainty of the constitutive equations. Furthermore, the set with the smallest error with the selected experimental data can be obtained and can provide insight which direction should the constitutive equations be modified to improve the code accuracy. The newly proposed method is applied to a steady-state experiment and a transient experiment to illustrate how the method can provide insight to the code developer.

• International Journal of Advanced Culture Technology
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• v.12 no.1
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• pp.20-25
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• 2024

The qualitative effect of class is influenced by the instructor's class design and operation method, but it comes from motivating students to actively participate in class and utilizing potential qualities that lead to student-centered learning. Students' activities and the quality development of class participation can be utilized in presentation-based classes. This could be confirmed through the presentation classes in English language curriculum applied to English major students in Korea. In other words, with presentations conducted in language-theoretic classes such as phonetics/phonology, and syntax, it turned out that immersion in learning, concentration on class, and motivation for learning can be improved, developing systematic self-directed learning ability and cooperative mutual communication ability. Instructors need to lead the direction and design of the classes, but the actual educational effect depends on how students accept the academic tasks, how well they understand the learning contents, and how well they can systematically transmit them to others. In this respect, this study aims to investigate that learner-centered presentation classes contribute to making learners develop their competencies in class design, data utilization, imparting knowledge, and communication, which would bring about the improvement of learning quality and educational effects.

• Journal of Digital Convergence
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• v.4 no.2
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• pp.51-65
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• 2006

This study is to evaluate the morality of teenagers with regard to features of justice. On the basis of the findings, an online morality level test system is designed and implemented to help students understand themselves better and to increase moral maturity through this self-test method based on Kohlberg's Morality Development Level. The main purpose of this study is to help students test and evaluate their morality, and it will be contributed to slough off egocentrism and to orient a relationship based on a mutual respect by using the embodied system. If this system can be applied successfully, an effective improvement on students' further education guidance may be gained because the test and its results are made in the system simultaneously. Also this easy and fast test system can attain much more economical effects than a written test.

• Korea Journal of Hospital Management
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• v.20 no.3
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• pp.13-23
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• 2015

This research is intended to inquire any discrepancy depending on the variables such as types, geography and size of hospitals of Korea in order to develop differentiated marketing strategy and to investigate how the aforementioned variables affect the management performance such as the increase in the number of foreign patients, their willingness to re-visit, the increase in profit and etc. The survey for this research was conducted for five weeks from July 10th 2014 to August 30th 2014 with 251 participants in charge of foreign patient attraction for 161 domestic hospitals. As the method of the research, a hypothesis was first established based on previous studies, followed by the incorporation of self-administered questionnaire to confirm the formulated hypothesis. Frequency analysis and ANOVA analysis were used to analyze the result of the survey. The outcome of the research and the implications are as follows. First, according to the demography of the persons-in-charge of foreign patient attraction, the proportion of female was superbly high by 76.5%. As for the age, those in their 30s were highest in proportion. Finally, for the education level, college graduates took up the largest portion by 46.5%. Second, in respect to the hypothesis assuming the difference in performance depending on the types of hospitals, national university-affiliated hospitals showed the highest level of the increase in foreign patients by the average of 3.25. Third, in respect to the hypothesis assuming the difference in performance based on geographical position, it was confirmed that hospitals in Ulsan City experienced the largest growth in the number in foreign patients. Fourth, in respect to the sizes of hospitals, those with 201 to 300 sickbeds showed the highest increase by the average of 3.45. The implication of the above research outcome indicates that while the number of foreign patients visiting Korea for medical purposes is on the rise, the number of professionals in place with necessary knowledge and capacity is insufficient and requires improvement.

• Journal of Family Resource Management and Policy Review
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• v.17 no.1
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• pp.139-158
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• 2013

This research aimed to determine how a combined yoga and tea meditation program would affect the happiness of adolescents. The investigation was conducted over a total of 11 sessions held twice a week with 15 female middle-school students. Each session lasted 90 min and comprised preparation for 5 min, Hatha yoga for 50 min, tea meditation for 15 min, the expression of feelings for 15 min, and 5 min were allocated to finishing the program and announcing the next session time. A t-test was performed before and after the program to analyze the effects of the program. A goodness of fit test, which is related to the improvement of happiness, was done through a path analysis. As a result, we were able to determine meaningful changes in the t-test scores of happiness, stress, and quality of life. The scores of mindfulness, physical self-concept, and self efficiency changed positively, but meaningful changes were not shown. To derive a final conclusion, we verified the mediator effect with respect to happiness through a structural model. Consequently, physical self-concept was activated as a promoter for improving self-efficiency and mindfulness. Mindfulness was the key factor that improved the happiness of the adolescent subjects.

• The Journal of Korean Academic Society of Nursing Education
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• v.22 no.4
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• pp.577-587
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• 2016

Purpose: This study was conducted to provide Simulation Problem-Based Learning (S-PBL) for community visit nursing students according to their Myers Briggs Type Indicator (MBTI) personality types for learner-focused education and to verify its effectiveness. Methods: This study was conducted with subjects having the ST (Sensing-Thinking) and NF (iNtuition-Feeling) personality types, which are conflicting personality types, and forty-one subjects were allocated to the experimental group and nineteen subjects to the control group. The training, provided to subjects once a week, for a total of six times and 100 minutes each time, was with respect to the improvement of problem-solving ability, communication ability, and clinical practice competency. Data were analyzed through t-test and independent t-test. Results: After training, the self-rated problem-solving competency (t=3.07, p=.003), communication ability (t=2.86, p=.006), and academic self-efficacy (t=2.44, p=.018) were significantly higher in the experimental group than in the control group. However, there was not a significant difference in the clinical practice ability rated by subjects themselves (t=1.50, p=.140) and by professors (t=1.08, p=.285), and in the communication ability rated by professors (t=0.72, p=.474). Conclusion: The community visit nursing S-PBL, according to MBTI personality types, is a helpful learning method for nursing students participating in self-directed learning of nursing theory and practice.

• The Journal of Korean Academic Society of Nursing Education
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• v.21 no.1
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• pp.54-64
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• 2015

Purpose: The purpose of this study was to investigate the effects of simulation in nursing education based on caring for elderly cognition disorder patients. The education consisted of a caring program for patients that included a process of assessment of a patient's mental status, diagnosis of the patient's health condition, and intervention to address the problems by using therapeutic communication. Methods: A nonequivalent control group pretest-posttest design was used. A total of 69 subjects (undergraduate students) participated in the education and they were assigned to two groups: the experimental group (n=32) and the control group (n=37). Data-gathering structured questionnaires that included communication competence, academic self-efficacy, and attitudes about the elderly. The data were collected from October 2013 to December 2013, and statistical analyses were conducted with-test and t-test using the SPSS 21.0 program. Results: With respect to education, there was significant improvement in communication competence in the experiment group (t=2.41, p=.022) compared with in the control group (t=.69, p=.494). However, there was no statistically significant difference in academic self-efficacy and attitude about the elderly. Conclusion: Simulation-based education should continue to be developed further for better elderly-patient care. Integrated education in particular using a high-fidelity simulator will contribute to improvements in nursing competence in this area.

• Journal of the Korea Convergence Society
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• v.13 no.1
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• pp.131-139
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• 2022

This study investigated the effects of job satisfaction on job commitment and turnover factors of physical therapists working in residential facilities for the disabled. Job satisfaction (23 questions) and organizational commitment (11 questions) were investigated for 122 physical therapists working in residential facilities for the disabled. As a result of the study, the job satisfaction of physical therapists working in residential facilities for the disabled was 3.16, and the level of organizational commitment was 3.29, which was moderate. Among job satisfaction, higher self-esteem, superior and welfare system, communication, and satisfaction with colleagues showed higher organizational commitment. Self-esteem, supervisor and welfare system, communication, and co-worker factors were found to affect emotional commitment. Physical therapists working in residential facilities for the disabled pointed out dissonance between their boss and colleagues, poor working environment, salary problems, and excessive work as factors for turnover. In order to increase organizational commitment of physical therapists working in residential facilities for the disabled, it seems that respect for their work and improvement of relationships with superiors and colleagues are necessary.

• Journal of Agricultural Extension & Community Development
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• v.20 no.3
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• pp.729-753
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• 2013

The purpose of this study was to analyze effectiveness of 4-H Seoul Field-Experiential Learning Program(4-H SFELP). The effectiveness scale of youth accredited activity was applied to analyze the effectiveness and satisfaction of the program. After screening the data, 155 responses were used to analyze the data for this study. The major findings of this study were as follows. First, 4-H SFELP has positive effects on the level of global leadership, initiative in exchange, and understanding other cultures which are related with effectiveness of youth exchange activity. Second, 4-H SFELP has positive effects on the level of confidence, challenge spirit, achievement motivation, and collective leadership which are related with effectiveness of youth adventure and challenge activity. Third, 4-H SFELP has positive effects on the level of problem-solving skills, morality, other-respect, and self-respect which are related with effectiveness of youth self-improvement activity. Fourth, 4-H SFELP has positive effects on the level of self-efficacy and autonomy but has not effects on the level of inquiring mind of participants. All these findings were discussed for youth workers and researchers.

• Korean Journal of Plant Resources
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• v.17 no.3
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• pp.339-351
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• 2004

This study was conducted to evaluate the effect of phased horticultural therapy(HT) program on the experience of psychologic therapy and the development of job and social integration in the mentally handicapped persons. In this study, the mentally handicapped persons participated in HT program were chosen in disabled person's welfare institute of Jeonnam. HT program was performed twice a week with 1 hour activity for 4 months. As a results, the mentally handicapped persons participated in HT program showed high interest of horticulture and improvement of self-respect and the high satisfactory degree of HT program. Therefore, the mentally handicapped persons were showed the experience of both physical and mental therapy, improvement of self-esteem scale and sociality in HT program. Also, the application of HT program with continuously interest will be showed high improvement of physical, psychological and sentimental. In the course of this HT program progress, horticultural therapist and social welfare officer were showed the limitation of role. Therefore the leaders of group for successful HT program be required the comprehensive plan of more efficient HT program and induced technique of continuously up-phased improvements in HT program progress.