• Journal of Convergence for Information Technology
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• v.10 no.9
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• pp.147-153
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• 2020

As demand for drone test flight is rapidly increasing, it is difficult for Goheung Aviation Center alone to meet the test flight demand. Newly developed drones or modified existing aircraft carry potential flight risks due to unpredictable flight performance or poor pilot skill when performing test flights outside the test site. Therefore, it is necessary to ensure sufficient test flight space for the safety verification of manned and unmanned aircraft. Therefore, this study analyzed the status of domestic flight test site and chapter 5 of ICAO DOC 9184-AN / 902 Part 1 (Airport Planning Manual). And to build a comprehensive flight test infrastructure, the methodology for preliminary evaluation of candidate sites for flight test sites and a method for evaluating infrastructure test sites was presented.

• Journal of Convergence for Information Technology
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• v.8 no.1
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• pp.89-94
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• 2018

Recently, interest and necessity for the insect industry has been increasing. Insects, which are referred to as the second food, are being used in various fields. Interest in mass production of insects has been increasing in various fields, and the need for research on environmental analysis for them is also increasing. In some countries in other developed countries, automated breeding systems have been developed that incorporate IoT. However, it is limited to be applied to many kinds of insects, and the price is so expensive that it has not been utilized in farm households. Therefore, we have carried out a study to make an optimal system that can be used practically in a farmhouse. Protaetia brevitarsis used for medicinal and edible purposes. It automatically checks the moisture of sawdust medium, which has the greatest influence on the environment of the slugs, which is the third larva of the grasshopper, and informs the result through the LED. It is applied to the environment to create an optimal breeding environment. I want to make it.

• Journal of Convergence for Information Technology
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• v.8 no.1
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• pp.227-233
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• 2018

The purpose of this study was to develop a warm cover for greenhouse with excellent thermal insulation and to propose ways of commercialization of the product. Feathers were used as filling materials because they formed the air layer to enhance insulation. Instead of downs for clothing or other textile products, we used disposed feathers. The developed product covers the outside of the greenhouse to keep the crops warm. It has multiple layers including feathers as filling materials, padding, inside fabric, heat insulation materials and outer fabric. It has proven to improve the insulation ratio. We developed other kinds of warm covers that are applicable to the inside of the greenhouse or the small houses in the greenhouse. Also, R&D system of educational industrial complex enables us to commercialize the products and building marketing strategies for them. This technology contributes to the expansion of energy-saving facilities for farmers, and it can serve the development and spread of various products utilizing feather.

• Journal of Convergence for Information Technology
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• v.10 no.10
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• pp.236-245
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• 2020

The purpose of this study was to determine the associations among emotional burnout, resilience, job embeddedness, and organizational commitment, provide basic data for an effective dental care delivery system and manpower management, and promote organizational commitment in clinical dental hygienists. For data collection, convenience sampling was performed among dental hygienists working in Daejeon and Chungcheong and Jeolla Provinces from November 11 to December 30, 2019, and a self-administered questionnaire was used. Organizational commitment was positively correlated with resilience and job embeddedness and was negatively correlated with emotional burnout; emotional burnout was negatively correlated with resilience and job embeddedness; and resilience was positively correlated with job embeddedness. The factor most significantly affecting organizational commitment was emotional burnout, followed by resilience and job embeddedness. It is therefore necessary to give another consideration to a customized intervention strategy, which involves emotional burnout, resilience, and job embeddedness, in exploring a program that helps clinical dental hygienists maintain and manage organizational commitment efficiently.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.65-72
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• 2020

This study examines the supervision competence of supervisor from the comparative perspective of supervisor and supervisee, and investigates the effects of organizational factors on supervisor's supervision competence. For this purpose, data collected from 241 workers at social welfare agencies in Gyeonggi-do were analyzed through t-test and hierarchical regression analysis. The major results of data analysis are as follows. First, supervisors are more positive than supervisees in terms of supervision competence. Second, there is a statistically significant difference between two groups in supervision knowledge and qualities among the subfields of supervision competence. Third, in the case of supervisors, the younger the age and the higher the education level, the more positively they perceive their supervision competence, and agency's supervision support explains supervision competence at the level of △R² = .305 at p> .001. Finally, based on the results of this study, the directions for strengthening the supervision competence were suggested.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.46-54
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• 2020

This study aims to develop and analyze the performance of a selective option straddle strategy based on forecasted volatility to improve the weakness of typical straddle strategy solely based on negative volatility risk premium. The KOSPI 200 option volatility is forecasted by the SVM model combined with the asymmetric volatility spillover effect. The selective straddle strategy enters option position only when the volatility is forecasted downwardly or sideways. The SVM model is trained for 2008-2014 training period and applied for 2015-2018 testing period. The suggested model showed improved performance, that is, its profit becomes higher and risk becomes lower than the benchmark strategies, and consequently typical performance index, Sharpe Ratio, increases. The suggested model gives option traders guidelines as to when they enter option position.

• Journal of Convergence for Information Technology
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• v.10 no.2
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• pp.55-62
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• 2020

The purpose of this study is to find out impact of physical health, family strength and psychological well-being on college students in Korea, and to use it as a basic data in developing psycholohgical well-being promotion interventions for college students. The study was composed of 125 students who were studying in 4-year system at colleges. Data were collected from September 1st to October 31st, 2019. Data analysis included an independent t-test, ANOVA, Pearson correlation coefficients and multiple regression using the SPSS 23.0 program. As a result of this study, psychological well-being of those was significantly correlated with physical health and family strenth. In a regression analysis, psychological well-being accounted for 28% of the variance of family strength, physical health and Club activity. The most significant factor affecting the success of psychological well-being was family strength (β=0.34, p<.001). The result of the study indicate the importance of consideration with family strength for psychological well-being of college students.

• Journal of Convergence for Information Technology
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• v.10 no.2
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• pp.15-20
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• 2020

In this paper, we propose an ICT-based smart farm design. At present, the decrease in rural population is naturally inevitable due to the decrease of the total population. The economic burden on each farm grows with increasing labor costs. As a solution to this, the necessity of spreading smart farms using computing resources is emerging. The proposed system utilizes the ICT technology emerging from the Fourth Industrial Revolution. We will use big data analysis to collect a large amount of data and propose a platform for managing collected data and providing efficient services. The proposed platform consists of SOA service layer, middleware layer, resource pool layer and physical resource layer. ICT-based smart farm service can reduce costs and be easy to install and manage because ICT-based smart farm service provides only necessary functions from the user's point of view.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.108-115
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• 2020

The purpose of this study is to identify the double mediating the effects of social support and self-esteem in the relationship between the subjective social class and the suicide thoughts of middle aged men and women. The subjective social class was analyzed in a parallel double-mediated model to check the mediating effect of self-esteem and social support on the idea of suicide. Social support and self-respect, which are mediating variables of subjective social class on suicide idea, both were a statistically significant. Putting the results of this study together, it is essential to establish a living-based social support system for middle-aged adults. This will contribute to improving self-esteem among middle-aged adults.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.240-248
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• 2020

This study compares and analyzes the tasks and evaluation methods of national technically qualified Skin Esthetic through systematic literature review of prior studies on qualification tests for Skin Esthetic qualification and process evaluation types that have been reorganized based on NCS. The national technical qualification is based on the ability to work through memorization-oriented theoretical tests and simple repetition of functions, and the Qualified qualification is relatively short in the period of test execution, and the reliability of its internal evaluation at the enforcement agency continues to be reduced. In the future, national technical qualification require innovation in the qualification system to reflect skilled demand at industrial sites, and course-based qualification for require supplementation and improvement of education and training courses so that they can learn skilled skills at the site.