• The KIPS Transactions:PartC
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• v.17C no.4
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• pp.315-326
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• 2010

Today's society is being caught in a whirlpool of change that is not behind the Industrial Revolution, the Reformation and so on. Technological determinism is the most general perspective that explains information society. It is the belief that information technology will bring about a particular form of information society. It is the opinion that the sequence of change of technology is inevitable and asks for a particular social change(Kim, 2006). When technology asks for it, however, not only the degree of technological development but also the credibility of the degree of technological development plays an important role in changing a society. This study was implemented based on the opinion that social change and individual change can vary depending on the degree of trust of people in the Internet technology. This study analyzes preferences of real-name system depending on the credibility of anonymity on the Internet and its influences on the behaviors of users, focused on the survey on the difference between ordinary users and users related to the Internet business. It also suggests not only the potential and the appropriateness of anonymity on the Internet, but also measures to alleviate adverse effects of it. Lastly, the objective of this study is to offer a dispute of real-name system and the standard of the anonymity policy on web sites.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.16 no.2
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• pp.81-89
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• 2002

The Battery Energy Storage System (BESS) has lots of advantages such as load leveling, quick response emergency power (spinning reserve), frequency and voltage control, improvement of reliability, and deferred generation and transmission construction. However, it is very critical that economic feasibility requires justification from the customer side of meter to promoting the dissemination of BESS in nation widely. In this paper, we proposed the economic assessment model of customer owned BESS which is complemented and improved the existing model. The proposed model is applied to the typical customer types, i.e. light industrial, commercial, and residential, which are taken from the statistical analysis on the load profile survey of Korea Electric Power COmpany (KEPCO). The economic viability performed for each customer load type to justifying their economic feasibility of BESS installation from the economic measures such as payback period, Net Present Worth (NPW), Rate Of Return (ROR). The results show that the BESS has economic benefits to the specific customer type, i.e. residential customer. Therefore, the government and the energy agency should be committing the support program, such as tax incentive, financial support, to disseminate the BESS nation widely. The results of this paper are useful to the customer investment decision-making and the national energy policy & strategy in Korea.

• Journal of Digital Convergence
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• v.15 no.6
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• pp.259-271
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• 2017

The present study was designed to examine the impact of socioeconomic, health-related, and health behavioral factors on the health-related quality of life (HRQoL) of the Korean elderly by gender. The subjects comprised 688 men and 898 women aged 65 or more who had participated in the Sixth Korea National Health and Nutrition Examination Survey conducted in 2014. The associations of factors with the HRQoL as measured with the European Quality of Life 5 Dimensions (EQ-5D) Index were examined in a general linear model. The most influential factor on the HRQoL was depression in both men and women. The perceived health status and walking activity were also associated with the HRQoL in both men and women. The living arrangement and educational status were associated with the HRQoL in women, while the body mass index was associated with the HRQOL in men. Depression management and the promotion of walking activity are essential to the HRQoL of the Korean elderly. Particular attention must be paid to the HRQoL of older women who live alone and have a lower level of education.

• Journal of Digital Convergence
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• v.18 no.11
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• pp.465-475
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• 2020

The purpose of this study was to investigate how the attributes of YouTube BJs, specifically those dealing in e-sports content, affects information usefulness, information search satisfaction, and behavioral intention. To achieve this purpose, data from 229 students collected by convenient sampling of college students were used for final analysis, and analyzed using SPSS 23.0 and AMOS 23.0 programs. The results of the study are as follows: First, the friendliness of the BJ had a significant positive (+) effect on the information usefulness, the information search satisfaction, and the behavioral intention. Second, it was found that the reliability of the BJ did not significantly affect the information usefulness, the information search satisfaction, and the behavioral intention. Third, the information usefulness had no significant effect on behavioral intention, but Information search satisfaction was found to have a significant positive (+) effect on behavioral intention. Therefore, the results of this study are expected to contribute to establishing a strategy for e-sports content production based on the attributes of BJs.

• Culinary science and hospitality research
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• v.19 no.4
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• pp.25-39
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• 2013

The purpose of this study is to understand interrelationships among young entrepreneurs' growth factors, entrepreneurial capability and entrepreneurial intentions, targeting the students who major in culinary and foodservice. Based on total 327 samples obtained from the empirical research, this study reviewed reliability and fitness of the research model and verified total 2 hypotheses with the Amos program. The proposed model provided an adequate fit for the data, $x^2$=495.217 (p<.001), df=231, CMIN/DF 2.144, GFI .902, AGFI .878, NFI .911, CFI .954, RMSEA .067. The SEM results showed that the young entrepreneurs' growth factors such as policy support(${\beta}$=.457, p<.001), skills & knowledge(${\beta}$=.244, p<.01), role model(${\beta}$= .242, p<.05) in order had significantly positive effects on entrepreneurial capability, and entrepreneurial capability(${\beta}$= .787, p<.001) had positive(+) effects on entrepreneurial intentions, verifying organic causal relationships among the growth factors, entrepreneurial capability, and entrepreneurial capability. These study results showed that there should be more systematic supports to encourage young entrepreneurs. Limitations and further research directions are also discussed.

• Journal of Digital Convergence
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• v.15 no.8
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• pp.145-160
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• 2017

This paper aims to investigate the effects of Smart-Work IT resources on job performance. The survey was conducted amongst the business workers who are currently engaged in domestic major companies as well as small businesses, and analyzed based on the frequency, factor and reliability. Using PROCESS Macro, we conducted an analysis of the relationship between the IT resources and job performance, treating collective intelligence as a mediating parameter. The results of the study are as follows. First, the IT resources of the companies were found to have a meaningful effect on job performance. Second, the IT resources were found to have no effect on employee productivity except through their effect on the collective intelligence. Finally, while openness and cooperation were found to be the aspects of collective intelligence which mediated between IT resources and workflow improvement, participation, openness and cooperation were found to be the aspects of collective intelligence which mediated between IT resources and workflow coordination, In the future, it is necessary to compare quantitatively the financial performance of Smart-Work adopters and others in the same industry or to compare the financial performance before and after introducing Smart-Work dynamically within the same company.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.3 no.2
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• pp.119-126
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• 1983

The purposes of this study are to analyze/model the mode choice behavior of the regional traveler by express bus/express train and to offer useful source in deciding the public transportation policy. The data analyzed were trips of both modes from March, 1980 to November, 1981, between Seoul and other nineteen cities; the data were grouped as five groups according to the change of service variables. Service variables were travel time(unit: minute), cost(:won), average allocation time(:won), service hour(:hour), and dummy variables by mode. As model Logit Model with linear or log utility function were postulated. As the result of this study, some reseanable models were constructed at Model Type I(eq. 2. of this paper) based on the above data except the dummy. It was judged that the parameters calibrated by Group III and Group IV data in table 4, were optimal. Among the parameters, the parameter of travel cost was most reliable. There was a tendency preferring express bus to train in October and November. With the constructed model and Pivot-Point Method. the demand change of express train caused by the service variables' change could be forecasted over 99%.

• Korea journal of population studies
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• v.26 no.2
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• pp.111-145
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• 2003

This paper attempts to explore recent socio-demographic changes of the ethnic Korean population in Yanbian autonomous prefecture. Due to rapid decrease in the level of fertility and population ageing, Korean minority society in China has been in a process of profound transition after the introduction of the market economy and establishment of diplomatic relations between South Korea and China. The changes in demographic behaviors and in the structure of population appear to be much faster among Koreans than Hans. Results from the 2000 population census reveal that the Korean population in Yanbian, where ethnic Koreans are most densely populated in China, has been in a decreasing trends in absolute numbers and in its proportion to the total population. The growing tendency of regional mobility for work and for marriage, rapid expansion of residential areas, serious crisis of ethnic schools of Korean community, and weakening social integration and ethnic identification of Koreans in Yanbian are discussed in this study. It is expected that socio-demographic transition of Korean society in Yanbian will be even more drastic over the coming decades. The rapid changes in demographic behaviors and in the structure of population has major consequences and implications for every sphere of human life, and will present enormous challenges for the status of Korean minority society in China. Along with various statistical data on Yanbian, micro-level data as well as published reports from the 1990 Chinese population census for Yanbian and the 2000 Chinese population census are analyzed in this study. In addition to sex ratios and age ratios, various indices are calculated to analyze the characteristics and accuracy of the data from the 1990 and 2000 population censuses of China.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.323-331
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• 2017

In this paper, four types of deposition control processes such as temperature, pressure, input/output(I/O), and gas were replaced by the Internet of Things(IoT) to analyze the data load and sequence procedure before and after the application of it. Through this analysis, we designed the load balancing in the sensing area of the deposition process by creating the sequence diagram of the deposition process. In order to do this, we were modeling of the sensor I/O according to the arrival process and derived the result of measuring the load of CPU and memory. As a result, it was confirmed that the reliability on the deposition processes were improved through performing some functions of the equipment controllers by the IoT. As confirmed through this paper, by applying the IoT to the deposition process, it is expected that the stability of the equipment will be improved by minimizing the load on the equipment controller even when the equipment is expanded.

• Journal of Digital Convergence
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• v.12 no.3
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• pp.161-176
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• 2014

Social commerce is a new internet business model which are types of joint purchase, social link, promotion, and on-off association etc. The recent public organization has the dual target to increase sound finance, and to improve customer satisfaction and the quality of public service. The purpose of this study is to propose the strategy of public social commerce which makes it's customers become positive purchasers. We analyzed 31 public organizations, and found that the type of social link interlocking with SNS site in the various purpose of public, and the offline association type using the service of location base would be utilized very highly. We also found that the joint purchase type and the promotion type would be used in the area of public and private selective services intending to make a profit. The anticipated performance are as follows: rapidity and reliance, customer made thing and goodwill, convenience for the service environment quality, publicity and diffusion, and sales promotion, productivity increase and new finding of revenue model for the profit increase outcome.