• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.586-593
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• 2019

The purpose of this study is to investigate the perception of fire safety education in middle and high school teachers. The results of this study provide basic data necessary for future school safety education. The research was carried out using a questionnaire given to 317 school teachers. The frequency of the questionnaire was calculated from frequency analysis using SPSS version 19.0. A chi-square test was conducted to verify the analyzed questionnaire data. Cronbach's alpha for fire safety awareness in the respondents is 0.845, which is very reliable. According to the results of the survey, fire safety education currently conducted in schools is aimed at having a safe lifestyle and respect for life. The training is conducted once every six months, on average, and training time is 30 to 45 minutes. Fire safety education in schools is conducted in the form of experience-oriented education in cooperation with fire-related organizations following the plan of the school. Educational texts are used and utilized through the Internet and in related publications. Under the present circumstances, it is necessary to secure sufficient space to run an experience-related education program and to actively participate in the students' fire safety education at the school.

• Journal of The Korean Society For Urban Railway
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• v.6 no.4
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• pp.233-241
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• 2018

Recently, integrated railway safety monitoring and control system, which is a convergence system based on data distribution service for railway safety monitoring and control, is under development. It collects safety data of vehicle, signal, power and safety monitoring facilities in real time and adopts communication middleware based on distributed service for mass data processing. However, in the case of a server device used as an existing control server, the performance of the distributed service middleware can not be exhibited due to low hardware performance due to safety reasons. In the safety control system, 200,000 packets per second were set as the transmission target, but the performance test of the LAB was not satisfied. In this paper, we analyze the characteristics of railway data to improve the data collection performance of existing equipment and apply DDS-based streaming transmission method to the data model of signal facilities and vehicle facilities with large packet amount according to the analysis result. As a result, it was confirmed that the throughput was improved about 30.4 times when the hardware performance was the same. We plan to improve the data processing performance by applying it to real-time railway safety integrated monitoring and control system in the future.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.247-251
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• 2014

As smart education increases the demand for new teaching-learning methods, teacher training colleges need to systematize smart education teaching-learning methods for pre-service teachers. This study designed a smart education teaching-learning model, which is applicable to pre-service teachers, by analyzing the smart education teaching-learning types for primary and secondary schools at national and international levels and by analyzing the Creation Teaching Learning Assessment (CTLA) model. The goal of smart education is to reinforce capability of learners. The smart education teaching-learning model designed to help pre-service teachers reinforce their smart literacy is suitable for reinforcing capability of future learners to receive smart education. The smart education teaching-learning model in this study was designed as a 15-week teaching plan applicable to pre-service teachers at teacher training colleges. In the teaching-learning model, problem-based learning (PBL), a situated learning model, and cooperative learning model were applied to weekly instructions. Further research should be conducted to prove its effectiveness in allowing pre-service teachers to reinforce their smart literacy by making gradual improvement in this model and to develop and test smart education teaching-learning models constantly.

• Korean Journal of Child Education & Care
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• v.19 no.2
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• pp.1-17
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• 2019

Objective: The objective of this study was to explore the perception and its improvement of pre-service teachers regarding teaching professionalism. The subjects of this study were 41 university students who experiencing early childhood teaching practice and 41 their cooperating teachers. Methods: In order to examine perception and its improvement on teaching professionalism, teaching professionalism scale for pre-service early childhood teachers (TPSECT) that was 33 items was administrated. Data were analysed paired t-test and contents analysis. Results: First, early childhood teaching practice experience affected positive effects on the four subordinate areas of teaching professionalism: , , , and improved perception of teaching professionalism. Second, student teachers were developing teaching professionalism, in a course of early childhood teaching practice which consisted of performing teaching real children in the field, evaluating and feedback of cooperating teacher, self-reflection and re-instruction. Conclusion/Implications: For improving pre-service teachers' professionalism, except a teaching practice subject, it is necessary to open various subjects that provide practical experiences, such as, teaching real children, observing actual class. This suggests that more experiential and practical in-service education program will be demanded.

• Journal of the korean academy of Pediatric Dentistry
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• v.46 no.2
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• pp.139-146
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• 2019

This study aimed to analyze the association of midpalatal suture (MPS) maturation stages with skeletal maturation and age and to obtain references for establishing a treatment plan for rapid maxillary expansion (RME). Cone-Beam Computed Tomography (CBCT) images from 480 children (240 boys, 240 girls) aged 7 - 15 years were obtained. MPS maturation stages and cervical vertebral maturation indicator (CVMI) were evaluated, and the correlations between MPS maturation stages, CVMI, and age were determined using the Spearman's correlation test. The positive likelihood ratio (LHR) of CVMI for MPS maturation stages was calculated. MPS maturation stages and CVMI showed a strong correlation. Especially, CVMI 1 - 3 showed positive LHR greater than 10 for the diagnosis of stages A - C. MPS maturation stages and age were correlated strongly in girls and moderately in boys. Conventional RME produces the most favorable skeletal effect at CVMI 1 - 3 or those up to 12 years of age and fewer skeletal effects at CVMI 4 or at 13 years of age in girls and 13 - 15 years in boys. It is recommended to evaluate MPS maturation stages using CBCT before RME application at CVMI 5, 6 or at 14, 15 years of age in girls.

• 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 the Korea Convergence Society
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• v.11 no.12
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• pp.353-362
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• 2020

The purpose of this study was to analyze the Gap Between Knowing the importance of and the Actual Implementation of family-centered practices of social workers at local social welfare centers in Gyeonggi-do, and to explore strategies at the institutional level to improve these differences. To this end, a survey was conducted on 232 social workers at 54 community welfare centers in Gyeonggi-do, and the t-test and IPA analysis techniques were used. As a result of the study, first, the importance of family-centered practice of social workers at community welfare centers is highly recognized, but the current performance is low. Second, as a result of verifying the difference in importance-performance regarding family-centered practice, it was found that there were statistically significant differences in all of the 6 sub-factor areas and 18 detailed items of family-centered practice. Third, as a result of IPA analysis of the importance-performance of family-centered practice, at keep up good work(family decision making, comprehensive service), at possible overkill(family focus) was derived, at low priority(family strength, individualization), at concentrate here(cooperation with family) were for each sub-factor. Based on these results, an institutional strategic plan to improve the difference between the importance and performance of family-centered practice was suggested.

• Journal of the Korean institute of surface engineering
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• v.55 no.6
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• pp.390-397
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• 2022

Parylene-C which was mainly used for industries such as electronics, machinery and semiconductors has recently been in the spotlight in the medical field due to its properties such as corrosion resistance and biocompatibility. In this study we intend to derive a plan to improve the bonding strength of Parylene-C coating with the SUS304 base material for medical use which can be applied to various medical fields such as needles, micro needles and in vitro diagnostic device sensors. Through plasma pretreatment the bonding strength between Parylene-C and metal materials was improved. It was confirmed that the coated surface was hydrophobic by measuring the contact angle and the improvement of the surface roughness of the sample manufactured through CNC machining was confirmed by measuring the surface roughness with SEM. Through the above results, it is thought that it will be effective in increasing usability and reducing pain in patients by minimizing friction when inserting medical devices and in contact with skin. In addition it can be applied to various application fields such as human implantable stents and catheters, and is expected to improve the performance and lifespan of medical parts.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.3
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• pp.697-706
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• 2021

The purpose of this study is to find out whether the many start-up support programs provided by a college can actually help students start a business, and to discuss what role colleges should have as facilitators of student entrepreneurship. To this end, a qualitative study was conducted with seven students who wished to start a business by utilizing start-up education and support programs provided by College Y. As a result of the study, the participants first mentioned parallel and administrative inefficiency in entrepreneurship and the entrepreneurship programs. Second, the implications for the role of colleges in fostering start-up content are systematic planning and guidance for start-up programs operated by the college, concise administrative procedures, mentoring in various start-up items, and securing a test market. It can be said that the concept of a common office in which students can work together is necessary. The study is significant in that it can help to establish a start-up support plan by suggesting what role colleges should play in relation to entrepreneurship, but its limitation is that its scope includes only one specific major.

• Journal of Korean Society of Forest Science
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• v.109 no.4
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• pp.468-476
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• 2020

we developed a stand density management diagram for Quercus variabilis in order to predict the final cutting ages of coppice forests based on management objectives. The sample data were classified into two groups: 603 data points for analysis and 113 data points for verification. Using these data, a stand density management diagram was constructed and a goodness-of-fit test was performed. The explanatory power (R2) of the constituent models for the stand density management diagram was 0.732 for the equivalent height curve and 0.990 for the equivalent diameter curve. According to the analysis of the final cutting age rangeof the highest production, the final cutting ages for 900 buds remaining per hectare was 42-44 years, and that for the 1,800 buds remaining per hectare was 38-42 years. With the third-grade log set as the production target, the final cutting age range with site index 16 and 14 was 25-28 years and 29-33 years, respectively. The results of this study provide baseline data for establishing a management plan for Q. variabilis coppice stands.