• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.38-47
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• 2019

The purpose of this study was to identify latent classes in executive function difficulty of first graders depends on evaluations from their mother and teacher and to investigate how its related with their school adaption and academic performance in second grade. Based on the model of the latent profile analysis, the 8th and 9th wave data from Korean Children and Youth Panel Survey were analyzed. The results of this study were as following. First, results showed that there were three types of latent classes in the executive function difficulty depend on evaluations from their mother and teacher: 'low executive function,' 'students who were highly evaluated by mother,' and 'students who were highly evaluated by teacher.' Second, students' executive function difficulty had a direct effect on the students' school adaption and academic performance in their second year of school. Especially students who were evaluated as having the lowest executive function difficulty showed significant higher means than students who were evaluated higher by mother and teacher. This study emphasized the importance of multiple evaluation in students' executive function difficulty to provide an educational intervention.

• The Journal of the Korea Contents Association
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• v.21 no.2
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• pp.315-329
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• 2021

The purpose of this study is to verify the mediating effect of job stress between childcare teacher personality and child abuse, and provides basic data on personality education and coping strategies for childcare teachers' job stress. A survey was conducted on 326 childcare teachers working at daycare centers in Incheon, Korea. The collected questionnaires were subjected to regression analysis, multiple regression analysis, and Sobel's Z-test according to the research purpose with using SPSS 20.0. The research results are as follow. First, it was found that job performance, a sub-factor of childcare teacher personality, had an effect on child abuse. Second, it was found that the sub-factors of childcare teacher personality, humanity, creativity and personality, social relations, and job performance had an effect on job stress. Third, it was found that childcare activities, the sub-factors of job stress, and the relationship with parents had an effect on child abuse. Fourth, it was found that childcare activities, sub-factors of job stress, partially mediated between job performance and child abuse, a sub-factor of childcare teacher personality. These findings suggest that in order to prevent and contain child abuse by childcare teachers, specific plan must be actively prepared to improve job performance skills related to childcare teacher personality and reduce the burden of child care activities which is a sub-factor of job stress.

• Journal of Korean Public Health Nursing
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• v.28 no.3
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• pp.619-632
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• 2014

Purpose: This study was conducted in order to analyze the job of school health teacher in Korea. Methods: School health teachers' roles were analyzed by DACUM job analysis. Guide of DACUM methods and workshop were directed by a DACUM job analyst. The DACUM committee identified tasks associated with each duty and completed the DACUM chart. Results: Through DACUM job analysis, the roles of school health teachers were defined; one who manages health of students and staff, and conducts health education; 11 duties and 95 tasks were identified. The committee listed required knowledge and skills, working attitude, and future trends. Emergency and common disease care were the best critical duties, followed by health education, counseling, and self-development. Conclusion: School health teacher plays the roles of nurse and health care manager, and teacher. According to the expansion of health care needs and health education, school health teachers are placed in more essential and critical areas. Their duties and tasks are various and have changed significantly, thus the School Health Act should be changed practically. The results of this study can be used in development of training programs or evaluation of the job performance of school health teachers.

• Steel and Composite Structures
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• v.35 no.6
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• pp.779-788
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• 2020

Multi-Walled Carbon nanotubes (MWCNT) coupled with Silicone Rubber (SR) can represent applicable strain sensors with accessible materials, which result in good stretchability and great sensitivity. Employing these materials and given the fact that the combination of these two has been addressed in few studies, this study is trying to represent a low-cost, durable and stretchable strain sensor that can perform excellently in a high number of repeated cycles. Great stability was observed during the cyclic test after 2000 cycles. Ultrahigh sensitivity (GF>1227) along with good extensibility (ε>120%) was observed while testing the sensor at different strain rates and the various number of cycles. Further investigation is dedicated to sensor performance in the detection of human body movements. Not only the sensor performance in detecting the small strains like the vibrations on the throat was tested, but also the larger strains as observed in extension/bending of the muscle joints like knee were monitored and recorded. Bearing in mind the applicability and low-cost features, this sensor may become promising in skin-mountable devices to detect the human body motions.

• Human Ecology Research
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• v.56 no.3
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• pp.263-282
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• 2018

This study is used to understand the characteristics of home economics teachers that could to help develop personal development in home economics teacher and home economics education. The questionnaire survey was conducted on 150 home economics teachers who belong to either the home economics teachers' study association or Korean home economics education essociation. The survey was processed with frequency analysis, standard deviations, factor analysis, independent sample t-test, and reliability analysis using SPSS 12.0 depending on the contents of the research. The study results are as follows. First, for home economics teachers' conscious teaching, they build their own identities as experts, and have a vocation and sense of duty for their job. The culture of research and investigation community to study education and to maintain collaborative relationships with teachers of home economics teachers' associations has evolved. Second, home economics teachers have the ability to analyze and manage students' demands in order to perform teaching activities, and understand individual student characteristics. They understand new study trends and curriculum, develop sources for class, use appropriate teaching and learning theories, and create students' reflective activities. In addition, they grow their learning ability as specialist and study in self-oriented ways.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2022.11a
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• pp.126-128
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• 2022

경량화 기법 중 하나인 Knowledge distillation 은 최근 object detection task 에 적용되고 있다. Knowledge distillation 은 3 가지 범주로 나뉘는데 그들 중에서 Self-Knowledge distillation 은 기존의 Knowledge distillation 에서의 pre-trained teacher 에 대한 의존성 문제를 완화시켜준다. Self-Knowledge distillation 또한 object detection task 에 적용되어 training cost 를 줄이고 고전적인 teacher-based methods 보다 좋은 성능을 성취했다.

• Journal of the Korean Chemical Society
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• v.63 no.3
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• pp.166-182
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• 2019

This study examined teachers' difficulties that they encountered free semester science assessment and their problem solutions. Fifteen science teachers who had experiences of free semester teaching and assessment were selected by convenience sampling in this study. The participant teachers mentioned difficulties of accurate scoring in student self/peer assessment and suggested solutions of providing studetns with detailed assessment criteria and opportunities to practice assessment. The participant teachers mentioned a lack of objective assessment criteria for affective domain and suggested solutions of providing criteria prior to assessment and developing assessment framework. The participant teachers mentioned a lack of assessment tools and references for perforamnce assesement. The participant teachers mentioned difficulties of a large teacherstudent ratio for providng feedbacks to students and suggested solutions of decreasing teacher-student ratio and teaching load. The participant teachers mentioned difficulties of identifying student characteristics for assessment reporting and suggested solutions of decreaing teacher work load. The participant teachers mentioned a lack of teacher understanding of process based assessment and inactive attitude to performance assessment and suggested solutions of professional learning community and improving teacher perceptions on performance assessment. The participant teachers mentioned difficulties of a large teacher-student ratio and a lack of time for implementing assessment methods that they learned from professional development programs. With both teacher self-efforts and systematic support, these problems would be solved and success of free semester assessment would be achieved.

• Journal of Korean Library and Information Science Society
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• v.37 no.1
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• pp.353-373
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• 2006

The purpose of this study is to research the concepts of reading ability and debate ability, and the components of both abilities and to make the performance assessment's standards to apply them to the classroom for reading debate in the school libraries. For doing this, I studied the necessity of reading debate, assessment, and the components of reading/debate abilities. The components of the reading and debate abilities were derived from the theoretical researches and the performance assessment's standards for the reading debate were proposed in the viewpoint of the teacher librarians and classroom teachers in the school libraries in order that the teacher librarians and teachers could apply them to the reading debate classes and assess the performance achievement of the students.

• Korean Journal of Childcare and Education
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• v.17 no.2
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• pp.89-101
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• 2021

Objective: The purpose of this study is to verify the effect of directors' coaching leadership on teachers' play implementation competencies and the mediation effects of teachers' reflective thinking and creative job performance by conducting a structural relationship analysis. Methods: The subjects of this study were child care teachers who were purposefully sampled from the metropolitan area which includes Seoul, Incheon, and Gyeonggi Province. A total of 267 questionnaires were analyzed after excluding poor or incomplete questionnaires by use of SPSS Statistics 25.0 and the AMOS 21.0. Results: Directors' coaching leadership was positively correlated with teachers' reflective thinking, creative job performance, and their play implementation competencies. Directors' coaching leaderships directly and indirectly influenced teachers' play implementation competencies, which was mediated by teachers' reflective thinking and their creative job performance. Conclusion/Implications: Directors' coaching leadership has a significant implication for teachers' play implementation competencies which became more important after the national curriculum standards had been revised.

• Membrane and Water Treatment
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• v.9 no.2
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• pp.129-136
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• 2018

In this contribution, the control of multivariable reverse osmosis (RO) desalination plant using proportional-integral-derivative (PID) controllers is presented. First, feed-forward compensators are designed using simplified decoupling method and then the PID controllers are tuned for flux (flow-rate) and conductivity (salinity). The tuning of PID controllers is accomplished by minimization of the integral of squared error (ISE). The ISEs are minimized using a recently proposed algorithm named as teacher-learner-based-optimization (TLBO). TLBO algorithm is used due to being simple and being free from algorithm-specific parameters. A comparative analysis is carried out to prove the supremacy of TLBO algorithm over other state-of-art algorithms like particle swarm optimization (PSO), artificial bee colony (ABC) and differential evolution (DE). The simulation results and comparisons show that the purposed method performs better in terms of performance and can successfully be applied for tuning of PID controllers for RO desalination plants.