• Journal of Digital Convergence
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• v.16 no.9
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• pp.465-475
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• 2018

This study aims to confirm whether both the emotional labour and job stress contribute to the turnover intention of infant teacher. The correlation analysis and parametric analysis were sequentially performed for our study. Analyzed results showed that the emotional labour was related to the job stress and turnover. Also, a statistical significance between the job stress and turnover intention was observed. Besides, the job stress partially mediated the relation between the emotional labour and turnover intention. Nsidering that the emotional labor of teacher caring or lived with infants occurred inevitably, our study proposed three approaches to reduce the job stress that partially mediated relation between the emotional labour and turnover intention. Generally, the infant teacher with excellent qualification produced the good education. Therefore, we suggested that the it was necessary that a work environment had been improved and working motivation was ameliorated to employ the infant teacher with excellent qualification.

• Journal of Industrial Convergence
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• v.18 no.3
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• pp.109-116
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• 2020

The purpose of this study is to make suggestions for the infectious disease surveillance systems as part of the government's healthcare policy intended to minimize damage by implementing an appropriate and swift crisis management in the event of future infectious disease outbreaks. To that end, this descriptive study analyzes the infectious disease outbreaks and the management and control thereof in Korea and other countries, so as to suggest some approaches to infectious disease surveillance systems applicable to affected regions. The analysis results shed light on the causes of the spread of future infectious diseases over the past years, and the management systems that could possibly deal with the trial and error in the response policy. It seems crucial to roll out appropriate information, training and promotion programs as part of the national disaster response systems to prevent infectious diseases in relation to the roles of multiple relevant government agencies in the event of disasters especially amid the COVID-19 pandemic.

• The Journal of the Convergence on Culture Technology
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• v.3 no.4
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• pp.137-144
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• 2017

The purpose of this study is to examine the effectiveness of Customer Relationship Management (CRM) factors in the Supply Chain Management (SCM) context focusing on ashion apparel company. Especially, this study reveals whether a long term relationship is beneficial for all businesses regardless of negotiation power leverage. To this end, the mixed research methods that combined qualitative and quantitative approaches were conducted. The findings of this study are as follows: First, the research model which is CRMs for interactive relationship building were developed. Second, cause-and-effect relationships in the proposed model were partially supported depending on CRMs. The most effective CRMs offered are a guarantee of sales and a special discount. Customized products and quality, convenience, competitive pricing, and development of a product/system/service were effective to ultimately increase a switching cost.

• Journal of Broadcast Engineering
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• v.20 no.2
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• pp.273-282
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• 2015

This study was to analyze the gambling media system, one of important factors in horse racing industry. The purpose of this study is to show a vision in special field of horse racing industry, which is examined as comparative analysis on domestic and foreign gambling media system in terms of Large Technological Systems by Hughes(1987). This study approaches in two different viewpoints. First, this study is to conceptualize the subjects of study in Large Technological System. Second, this study is to show common factors and differences on domestic and foreign gambling media system through conceptualization. This paper shows vision and implications like faster decision-making by authority's direct operating, competitive content development, future policy in accordance with the international open-door policy and broadcasting convergence for the balanced development of horse industry through the gambling media system, analyzing reverse salient which is the barrier of domestic gambling media system from comparative study.

• Journal of Digital Convergence
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• v.16 no.8
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• pp.393-400
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• 2018

The purpose of this study was to empirically investigate the emotional dynamics among sport issues, social structure changes and collective behaviors with time-series analysis. For the purpose, the doping scandal of Tae-Hwan Park was chosen and simplified into 10 episodes. And replies and articles on them were analysed by time-series analysis. As the conclusions, first, there was a clear causal relationship between sport issue and sport emotion. Second, sport emotion was a social being which interacting with social process. Third, the sport emotional dynamics was confirmed. With this study, the sport emotion dynamics was empirically verified, but more statistical approaches would be needed for stronger evidences.

• Tunnel and Underground Space
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• v.2 no.1
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• pp.116-122
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• 1992

A comprehensive, nonsteady state, computer simulation program for the environmental conditions in advancing tunnels (the HEADSIM simulation program) is constructed and successfully validated with heat balance amongst all heat sources, and with mass conservation amongst various airflows including the leakage air from ducts, under timedependent variations of inlet air conditions. which include sudden, diurnal and seasonal changes. Heat conduction in the wall strata and face strata is simulated with most complicated boundary conditions using the finite difference method, and the climatic conditions in roadway sections which contain air ducts, booster fan, spray cooler, compressed air pipes, cold water pipes, return water pipes, machinery and broken rock are simulated taking into account the variations of face operation and the heat storage mechanism in the strata. The limitations of simulation time steps and roadway section lengths are defined according to the stability criteria satisfying the principles of thermodynamics. Variations of heat transfer coefficients, which are newly set, and those of wetness factors are taken into account according to the variations of other parameters and the stepwise advance of the face. Newly-derived formulae are used for computing the air duct leakage and the pressure inside of the duct. A new concept of an 'imaginary duct' is introduced to simulate the climatic conditions in tunnels during holiday periods, which directly affect conditions on subsequent working days under the consideration of natural convection. A subsidiary program (the WALLSIM simulation program) is made to compute the dimensionless tunnel surface temperatures and to compare the results with those from analytical approaches, and to demonstrate the stability, convergence and accuracy of the strata heat conduction simulation, adopting the finite difference method. The WALLSIM also has wide applications, including those for the computation of age coefficients.

• Journal of Digital Convergence
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• v.10 no.1
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• pp.391-398
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• 2012

This study is to investigate the perceptions of high school teachers on the evaluation criteria of the college admission officer interview system and to suggest approaches to improve the interview system. The survey results of teachers' perceptions are the following. First, for 'potential' criteria, teachers consider challenging spirit and students' initiatives are important evaluation criteria. For 'personality' criteria, they contemplate that responsibility, community spirit and flexibility to resolve conflicts are important values. Further, views of life and creativity also need to be seriously considered in the screening process. Second, their satisfaction with the college admission officer system was relatively high (9.34 points). Last, in order to improve the interview screening system, teachers assert that the process to secure fairness is required. Based on the results, suggestions were made for ensuring expertise of college admission officer and improving the alternative policy of the admission officer interview system.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.4
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• pp.679-691
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• 2020

In the future, 5G technology will become the core infrastructure driving the 4th industrial era. For intelligent super-convergence service, it will be necessary to collect various personal information such as location data. If a person's high-precision location information is exposed by a malicious person, it can be a serious privacy risk. In the past, various approaches have been researched through encryption and obfuscation to protect location information privacy. In this paper, we proposed a new technique that enables statistical query and data analysis without exposing location information. The proposed method does not allow the original to be re-identified through polynomial-based transform processing. In addition, since the quality of the original data is not compromised, the usability of positioning big data can be maximized.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.102-113
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• 2012

The effort to generate new values in this age of digital technology characterized by rapid changes in information and knowledge demands transformations not only in the sociocultural and educational spheres but also specifically in the field of arts and culture education. One of the greatest transformations is emphasis on integration and consilience among different fields which has impacted the field of arts and culture, giving birth to the practice of arts and culture education. Digital technology actively utilizes in lots of subjects, which, also becomes a challenging factor for the field of arts and culture education. In this context, this study theoretically considered to approach music technology to use for the field of arts and culture education. Utilization of music technology takes interdisciplinary approaches combining various subjects in the field of arts and culture education. Considering the current circumstances in which there is a lack of teaching and learning methodologies which reflect the unique, specialized nature and the intrinsic originality of the field of arts and culture education. It is deemed that by accumulating more case studies applying music technology in practice to a wider variety of targets and situations. Music technology will serve the role of an important a learning tool for the arts and culture education field.

• KIISE Transactions on Computing Practices
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• v.23 no.5
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• pp.299-303
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• 2017

By piling up hidden layers in artificial neural networks, deep learning is delivering outstanding performances for high-level abstraction problems such as object/speech recognition and natural language processing. Alternatively, deep-learning users often struggle with the tremendous amounts of time and resources that are required to train deep neural networks. To alleviate this computational challenge, many approaches have been proposed in a diversity of areas. In this work, two of the existing Apache Spark-based acceleration frameworks for deep learning (SparkNet and DeepSpark) are compared and analyzed in terms of the training accuracy and the time demands. In the authors' experiments with the CIFAR-10 and CIFAR-100 benchmark datasets, SparkNet showed a more stable convergence behavior than DeepSpark; but in terms of the training accuracy, DeepSpark delivered a higher classification accuracy of approximately 15%. For some of the cases, DeepSpark also outperformed the sequential implementation running on a single machine in terms of both the accuracy and the running time.