• Journal of Convergence for Information Technology
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• v.11 no.1
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• pp.167-174
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• 2021

The purpose of this study is to examine the effect of computational thinking course on learning flow and collaborative self-efficacy of university students and to explore the effectiveness of computational thinking course as liberal arts education. For this study, 177 freshmen at a university in Chungnam Province were surveyed learning flow and collaborative self-efficiency. The collected data were analyzed with Stata IC 14 for ��2 test and t-test. The results of this study are as follows. First, the learning flow of students who took computational thinking course were significantly higher(t=3.837 p<.001) compared to those who did not. Second, the collective self-efficiency of students who took computational thinking course were significantly higher(t=2.277 p<.01) compared to those who did not. Therefore the results show that computational course has positive effects on learning flow and collaborative self-efficiency of university students. Based on these findings, discussions and implications were presented on the importance and effectiveness of computational thinking course.

• Journal of Convergence for Information Technology
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• v.10 no.12
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• pp.236-244
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• 2020

In this research a suspended solid transport experiment was conducted in the river experiment center to find the characteristics and dispersion of the material. Modeling by the particle dispersion model was also executed to reproduce the suspended solid transport. The suspended solid was consisted of a mixture of silica and water using a mixing equipment, which was then introduced into a real-scale flume and measured with the laser-diffraction based particle size analyzer(LISST) to find the concentration of the material. The comparison between the measured suspended solid concentration using drone images and particle size analyzers, with the model showed a good match overall, which proved the applicability of the model. Along with finding the model applicability, the research showed the potential for suspended solid estimation in high flow situations with high rainfall.

• Journal of Convergence for Information Technology
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• v.11 no.7
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• pp.136-144
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• 2021

This study was conducted to verify the effectiveness of the university's extracurricular program of convergence majors on lifelong education for the disabled on the performance of restaurant employment skills for high school students with intellectual and developmental disabilities. The research method consisted of a case study procedure for three intellectual and developmental disability high school students, specifically using a single subject research technique. The study found that high school students with intellectual and developmental disabilities effectively acquired and maintained restaurant employment skills through extracurricular program on convergence majors of lifelong education for the disabled. In conclusion, the university's extracurricular program on convergence major of lifelong education for the disabled was analyzed to be effective in adapting to adult life and self-reliance, including restaurant employment skills of students with intellectual and developmental disabilities.

• Journal of Convergence for Information Technology
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• v.10 no.12
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• pp.146-155
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• 2020

This study was to evaluate the usefulness of gamma glutamyl transferase (GGT) as a surrogate marker predicting metabolic syndrome. 7,155 non obese men over the age of 20 were studied as subjects. The criteria for diagnosing MetS were the National Cholesterol Education Program - Third Adult Treatment Panel (NCEP-ATP III). The risk of developing MetS according to GGT was conducted logistic regression analysis, and the ROC (receiver operating characteristic) curve was obtained to confirm GGT ability to predict the risk of MetS. Regardless of age and body mass index, MetS had a 7.09 times higher risk of onset in the fourth quartile than in the first quartile of GGT (p<0.001). The AUC (area under the curve) of GGT for the diagnosis of MetS was 0.715, and the cutoff value of GGT was 40.0 U/L, the sensitivity was 65.0%, and the specificity was 70.2%. Therefore, GGT is considered to be a useful diagnostic index for diagnosing MetS.

• Journal of Convergence for Information Technology
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• v.11 no.2
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• pp.130-137
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• 2021

The purpose of this study is to explore methods to prevent and improve the problem of overdependence on smartphones by analyzing the differences in satisfaction with college life satisfaction of freshmen. For this, data on freshmen of KCYPS were extracted and used. The data were analyzed using non-hierarchical cluster(K-means) analysis, T-test, one-way ANOVA, and Scheffé tests. The results of this study are as follows. First, it has been shown that freshmen who are overdependent on smartphones experience inconvenience in their daily life, withdrawal and anxiety, and resistance. Second, there is no significant difference in the level of satisfaction with college life according to gender(t=-.015, p<.05). Third, it is shown that the level of satisfaction with college life of overdependent freshmen on smartphone is significantly lower compared to that of average and moderate dependent freshmen. Based on the results, it was suggested that university-level efforts such as emotional support and learning strategy support are needed for freshmen who are overdependent on smartphones.

• Journal of Convergence for Information Technology
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• v.11 no.2
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• pp.146-152
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• 2021

Objectives: This study was conducted to understand influencing factors of job satisfaction of clinical dental hygienists and use them as basic data for enhancing their job satisfaction. Methods: A self-reported questionnaire was filled out by 182 dental clinic hygienists from April 1 to April 30 of 2019. Data were analyzed using SPSS 22.0. Results: The influencing factors of job satisfaction of clinical dental hygienists included job stress and professional self-concept. Conclusions: The higher the professional self - concept, the higher the job satisfaction, the lower the job stress of clinical dental hygienist. Therefore, it is necessary to develop and apply a program that can enhance the professional self concept of clinical dental hygienists and reduce job stress.

• Journal of Convergence for Information Technology
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• v.12 no.4
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• pp.133-142
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• 2022

The purpose of this study was to verify the moderating effect of the challenging spirit on the relationship between fun factors and re-participation intentions of participants in traditional play. The subjects of this study were 164 participants in the traditional play Hanmadang contest held in Jeju Special Self-Governing Province in 2021. They measured fun factors, challenging spirit, and re-particitation intention to participate. In order to analyze the collected measurement paper, the analysis was performed using SPSS18.0, PROCESS Macro(V.2.13), Interaction program. The major results were as follows. First, the interaction between promote health and challenge spirit was found to have a significant effect on re-particitation intention at high and medium levels. Second, it was found that the interaction between the foster of social and the challenge spirit did not have a significant effect on the re-particitation intention. Third, the interaction between sense of achievement and the challenge spirit was found to have a significant effect on the re-particitation intention at the high and medium levels.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.42 no.1
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• pp.107-116
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• 2022

Recently, research has been actively conducted on the technology of inspection facilities through image-based analysis assessment of human-inaccessible facilities. This research was conducted to study the conditions of deep learning-based imaging data on bridges and to develop an evaluation prototype program for bridges. To develop a deep learning-based bridge damage detection prototype, the Semantic Segmentation model, which enables damage detection and quantification among deep learning models, applied Mask-RCNN and constructed learning data 5,140 (including open-data) and labeling suitable for damage types. As a result of performance modeling verification, precision and reproduction rate analysis of concrete cracks, stripping/slapping, rebar exposure and paint stripping showed that the precision was 95.2 %, and the recall was 93.8 %. A 2^nd performance verification was performed on onsite data of crack concrete using damage rate of bridge members.

• Journal of Convergence for Information Technology
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• v.12 no.5
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• pp.177-182
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• 2022

This study aim to verify the difference in muscle activity due to difference in the direction of the stroking method for the stroke direction of the muscles using a tool made by a 3D printer. The subjects were conducted with 20 healthy adults in their 20s, and IASTM applied the intervention of the perpendicular stroking on the direction of muscle driving and intervention of the pararell stroking on the direction of muscle driving, with 10 each deployed. All subjects measured the muscle activity before intervention, and the muscle activity was measured and compared with the independent T test and the paired T test. The results of this study showed a significant increase in muscle activity in vertical groups, although the muscle activity in horizontal groups decreased. It was that differences in direction are significant in the application of IASTM.

• Journal of Convergence for Information Technology
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• v.12 no.5
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• pp.271-277
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• 2022

In this study, the effect of the anatomical practice extracurricular program on the major efficacy and satisfaction of medical health students was investigated. The research tool used a major efficacy survey, a program satisfaction survey, the major efficacy survey compared and analyzed the improvement before and after participation in anatomy practice and the satisfaction survey between anatomy pictures after completion of the extracurricular program. As a result of comparative analysis between the two groups, the effect on major efficacy was significant after the program progression, and in the case of satisfaction, the satisfaction of the anatomical practice group was higher than that of the anatomical picture group. Through these research results, when operating an anatomical practice extracurricular program, it is thought that operating an anatomical practice program rather than creating an anatomical picture improves the major efficacy and satisfaction score.