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Fabrication of Thermoelectric Module and Analysis of its Power Generation Characteristics 热电模块的制备及其发电特性分析
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.02.090
Tae-Young Choi, Kim Tae Young
{"title":"Fabrication of Thermoelectric Module and Analysis of its Power Generation Characteristics","authors":"Tae-Young Choi, Kim Tae Young","doi":"10.22156/CS4SMB.2021.11.02.090","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.02.090","url":null,"abstract":"In this study, a Bi2Te3 thermoelectric generator (TEG) was fabricated to convert unused thermal energy into useful electrical energy. For the performance test, a dedicated experiment device consisting of a heating block operating with cartridge heaters and a cooling block through which a refrigerant flows was constructed. A 3×3 array of thermocouples was mounted on the heating block and the cooling block, respectively, to derive the temperature fields and heat transfer rate onto both sides of the TEG. Experiments were conducted for a total of 9 temperature differences, obtaining V-I and P-R curves. The results of 7 variables including Seebeck coefficients that have a major effect on performance were presented as a function of the temperature difference. The feasibility of the energy recovery performance of the developed TEG was verified from the maximum power output of 7.5W and conversion efficiency of 11.3%.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"127 1","pages":"90-97"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74187606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of Differences in Satisfaction with College Life of Freshmen According to on Smartphone Overdependence 基于智能手机过度依赖的大学新生大学生活满意度差异分析
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.02.130
Hye-young K Park, Kyunghee Lee
{"title":"Analysis of Differences in Satisfaction with College Life of Freshmen According to on Smartphone Overdependence","authors":"Hye-young K Park, Kyunghee Lee","doi":"10.22156/CS4SMB.2021.11.02.130","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.02.130","url":null,"abstract":"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.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"31 1","pages":"130-137"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78915979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mediating Effect of Career Identity and Career Determination Self-efficacy in Relationship Between Grit and Career Preparation Behavior of College Students majoring in Dental Hygiene 职业认同、职业决定自我效能感在口腔卫生专业大学生毅力与职业准备行为关系中的中介作用
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.06.162
Jae-hoon Ji, Seong-Eun Heo
{"title":"Mediating Effect of Career Identity and Career Determination Self-efficacy in Relationship Between Grit and Career Preparation Behavior of College Students majoring in Dental Hygiene","authors":"Jae-hoon Ji, Seong-Eun Heo","doi":"10.22156/CS4SMB.2021.11.06.162","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.06.162","url":null,"abstract":"This study attempted to grasp the causal relationship, focusing on the double mediating effect of career identity and career decision self-efficacy in the relationship between grit and career preparation behavior. Data were collected by a self-entry method using structured questionnaire for dental hygiene student in area B. And it was analyzed using SPSS and Process Macro. The biggest factor directly influencing career preparation behavior was career identity, followed by grit and career decision self-efficacy. Through path analysis, grit indirectly had a significant influence on career preparation behavior through the mediating sense of career identity and the sense of career identity and career decision self-efficacy. This suggests that grit and career identity should be enhanced for active career preparation behavior, so it is intended to be used as basic data for career education contents development for college students majoring in dental hygiene.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"65 1","pages":"162-170"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76154861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Study on the Performance of Early Adaptation Support Program for People with Mental Illness Living in Independent Housing : Focused on Comparing Housing Types 独立住房中精神疾病患者早期适应支持方案的效果研究——以住房类型比较为中心
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.01.091
Choi Hee Chul, Bae, Eunmi
{"title":"A Study on the Performance of Early Adaptation Support Program for People with Mental Illness Living in Independent Housing : Focused on Comparing Housing Types","authors":"Choi Hee Chul, Bae, Eunmi","doi":"10.22156/CS4SMB.2021.11.01.091","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.01.091","url":null,"abstract":"The purpose of this study is to understand the performance of the initial adaptation support program for people with mental illness living in independent housing. The group of people with mental illness living in independent housing from T mental rehabilitation facilities in Seoul were assigned to the experimental group, and the other group of people with mental illness in living facilities and group home were assigned to the control group. After that, the degree of community performance between groups was compared with pre-post tests. As a result of the study, the pre-post analysis of the total social support of the experimental group showed significant differences. Also, the results were statistically insignificant in all of the control groups, so the initial adaptation support program was found effective in improving the total social support of the independent housing group. Based on the results of this study, the direction of housing support and establishment of a performance system for housing services for stable settlement of discharged people with mental illness into the community was suggested.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"9 1","pages":"91-101"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75006419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Analysis on the Changes in Muscle Function of the Leg Joint in Athletics Athletes Through by Whole Body Vibration Exercise Training 田径运动员全身振动运动训练对腿部关节肌肉功能变化的分析
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.03.250
Youngsun Lee, Chan-Young Yoon, K. Han, Jinhyun Kim, C. Hah, Joon-sung Park, Jongbin Kim
{"title":"Analysis on the Changes in Muscle Function of the Leg Joint in Athletics Athletes Through by Whole Body Vibration Exercise Training","authors":"Youngsun Lee, Chan-Young Yoon, K. Han, Jinhyun Kim, C. Hah, Joon-sung Park, Jongbin Kim","doi":"10.22156/CS4SMB.2021.11.03.250","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.03.250","url":null,"abstract":"The purpose of this study is to investigate muscle function and symmetry index during whole body vibration exercise using lower extremity training posture for throwing athletes. For throwing athletes in their 20s(6 males, 4 females, age: 24.60±0.92years, height: 177.90±7.40cm, weight: 92.90±22.97kg), lower extremity training postures with squat, carphrase, and lunge movements. Whole body vibration exercise training was performed using. Tensiomyography(TMG) variables Time Delay(Td), Time Contraction(Tc), Time Sustain(Ts) Time Relaxation(Tr), and Displacement Maximumal(Dm) in the lower extremity joint muscles(biceps femoris(BF), gastrocnemius lateral(GL), gastrocnemius medial(GM), rectus femoris(RF), tibialis anterior(TA), lateral vastus(LV), medial latissimus(ML)), were measured to compare and analyze muscle activity, muscle fatigue, and left-right symmetry. The results of the study are left RF, VL, right VM (p<.05) in Td, VM (p<.05) in Tc, GM in Ts (p<.05), left RF in Tr, and right TA (p<. 05) showed a change. Therefore, it has been proven that various whole-body vibration training is an effective exercise with changes in muscle contraction, and stability of the core is secured by symmetry of the left and right muscles. For this reason, the whole body vibration exercise will have a positive effect on rehabilitation training, and it is believed that it will be able to improve performance.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"66 1","pages":"250-260"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80233762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of Analytic Methods for Veterinary Drug Residue in Animal Products by Liquid Chromatography-Mass Spectrometry 动物产品中兽药残留液相色谱-质谱分析方法的建立
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.02.107
L. Soohyun
{"title":"Development of Analytic Methods for Veterinary Drug Residue in Animal Products by Liquid Chromatography-Mass Spectrometry","authors":"L. Soohyun","doi":"10.22156/CS4SMB.2021.11.02.107","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.02.107","url":null,"abstract":"","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"102 1","pages":"107-116"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80498705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Academic Stress of College Students on Dropout Intention : Mediating effects of Academic Procrastination Behavior 大学生学业压力对退学意向的影响:学业拖延行为的中介作用
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.02.138
Soo-Hyun Kim, P. Eun
{"title":"The Effect of Academic Stress of College Students on Dropout Intention : Mediating effects of Academic Procrastination Behavior","authors":"Soo-Hyun Kim, P. Eun","doi":"10.22156/CS4SMB.2021.11.02.138","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.02.138","url":null,"abstract":"The purpose of this study was to investigate the mediating effects of academic procrastination behavior on the relationship between academic stress and dropout intention. The research questions are First, does the academic stress of college students influence the intention to drop out? Second, does academic procrastination behavior the relationship between academic stress and dropout intention? A survey was conducted on 218 college students about academic stress, dropout intention, and academic procrastination behavior. Correlation analysis was conducted to find out the relationship between academic stress, dropout, and academic procrastination behavior, and Multiple regression analysis was performed to determine the moderating effect of academic procrastination behavior. The mediating effect was verified using Baron and Kenny's procedure, and the significance was verified by Sobel verification. The results are as follows: First, academic stress, dropout intention, and academic delay behavior showed significant positive correlations.. Second, Academic stress showed 15% of explanatory power as an influential factor on dropout intention, and 5% of explanatory power was an influential factor on academic procrastination behavior. Third, the through mediation analysis, there was partial mediated effects of academic procrastination behavior between academic stress and dropout intention. Our findings suggest that to improve the dropout intention among college students, educators should carefully design and develop an education program","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"41 1","pages":"138-145"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79304887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The Effects of Occupation-based Reminiscence training on Cognition, Depression, and Quality of Life in Community-dwelling Elderly 基于职业的回忆训练对社区居住老年人认知、抑郁和生活质量的影响
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.01.254
Park, Ju Hyung
{"title":"The Effects of Occupation-based Reminiscence training on Cognition, Depression, and Quality of Life in Community-dwelling Elderly","authors":"Park, Ju Hyung","doi":"10.22156/CS4SMB.2021.11.01.254","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.01.254","url":null,"abstract":"This study was conducted to investigate the effect of Occupation-based Reminiscence training on cognitive function, depression, and quality of life of the normal elderly. Subjects were 19 normal elderly. The evaluation was evaluated using the Montreal Cognitive Assessment Korean Version, Short Form of Geriatric Depression Scale-Korean Version, and the Geriatric Quality of Life. The Occupation-based Reminiscence training was conducted once a week for an hour for a total of 8 weeks. The collected data was confirmed using the Wilcoxon signed test. As a result of the training, significant positive changes in cognitive function, depression, and quality of life of the subjects were confirmed after application of Occupation-based Reminiscence training. From this result, it was confirmed that the Occupation-based Reminiscence training is a positive training method for improving cognitive function and preventing dementia of the normal elderly.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"5 1","pages":"254-260"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79369799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A study on the possibility of using dual task performance as a screening test for driving ability of elderly drivers 双任务表现作为老年驾驶员驾驶能力筛选试验的可行性研究
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.04.161
Suen Shin
{"title":"A study on the possibility of using dual task performance as a screening test for driving ability of elderly drivers","authors":"Suen Shin","doi":"10.22156/CS4SMB.2021.11.04.161","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.04.161","url":null,"abstract":"This study was conducted to identify the relationship between the dual task performance and driving behavior of the elderly driver in order to identify whether the dual task can be utilized as a test to screen the driving ability of the elderly driver. We surveyed general information and driving-related information for 32 normal elderly drivers, and evaluated Y-DuCog(Yonsei-Dual task Cognitive screening) and the K-DBQ (Korean-Driving Behavior Questionnaire). As a result of the study, the performance of the dual task using the pegboard task and the animal name speaking showed a significant correlation with the score of the violation domain of K-DBQ. With this study, it was possible to confirm the possibility as a test for discrimination of driving ability.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"40 1","pages":"161-167"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79445937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Technical Trading Rules for Bitcoin Futures 比特币期货技术交易规则
Journal of Convergence Information Technology Pub Date : 2021-01-01 DOI: 10.22156/CS4SMB.2021.11.05.094
S. W. Kim
{"title":"Technical Trading Rules for Bitcoin Futures","authors":"S. W. Kim","doi":"10.22156/CS4SMB.2021.11.05.094","DOIUrl":"https://doi.org/10.22156/CS4SMB.2021.11.05.094","url":null,"abstract":"This study aims to propose technical trading rules for Bitcoin futures and empirically analyze investment performance. Investment strategies include standard trading rules such as VMA, TRB, FR, MACD, RSI, BB, using Bitcoin futures daily data from December 18, 2017 to March 31, 2021. The trend-following rules showed higher investment performance than the comparative strategy B&H. Compared to KOSPI200 index futures, Bitcoin futures investment performance was higher. In particular, the investment performance has increased significantly in Sortino Ratio, which reflects downside risk. This study can find academic significance in that it is the first attempt to systematically analyze the investment performance of standard technical trading rules of Bitcoin futures. In future research, it is necessary to improve investment performance through the use of deep learning models or machine learning models to predict the price of Bitcoin futures.","PeriodicalId":15438,"journal":{"name":"Journal of Convergence Information Technology","volume":"2 1","pages":"94-103"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85594035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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