• Proceedings of the IEEK Conference
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• 1998.10a
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• pp.91-94
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• 1998

ATM technology is reaching a certain level of maturity that allow for its deployment in local as well as in wide area networks. Concurrently, audiovisual applications are foreseen as one of the major users of such broadband networks. We present in this paper requriement of real-time multimedia service on B-ISDN networks and simulating the transport of MPEG-2 encoded multimedia data over ATM networks using CBR, VBR, ABR of ATM Traffic Service. We compare each delay time considering network performance and propose need for real-time multimedia service.

• Journal of Information Technology Services
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• v.1 no.1
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• pp.161-168
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• 2002

Many problems in IT outsourcing service industry of Korea are rooted in the idiosyncratic structure of the industry. This structure causes the unique characteristics of service level management, service delivery methodology, and contracts. This study looks into the status of the industry, vendors, and markets of IT outsourcing and proposes some of relevant research topics of each area respectively.

• Culinary science and hospitality research
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• v.9 no.1
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• pp.51-64
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• 2003

The study aimed at conducting the comparative analysis of the service quality and the degree of satisfaction in the area of foods and beverages between recreational hotels and business hotels. Thus the quality of service was set up as tangibleness, reliability, responsive quality, confidentiality and sympathetic quality; the customer satisfaction was classified into the overall satisfaction and the degree of satisfaction of experience in using and analyzed. As the result of it, business hotels indicated higher than recreational hotels in tangibleness, reliability, confidentiality, the overall satisfaction and the degree of satisfaction of experience in using. Even in the effects of the service quality on the degree of satisfaction, there was difference between recreational hotels and business hotels. In conclusion, there is difference in the service quality and the degree of satisfaction on foods and beverages between recreational hotels and business hotels. Besides, to improve the degree of satisfaction on the field of foods and beverages of hotels, it is most important to understand the characteristics of main customers who use hotels.

• Journal of Korea Multimedia Society
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• v.7 no.12
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• pp.1719-1728
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• 2004

The fusion of Internet technology and applications with wireless communication provides a new business model and promises to extend the possibilities of commerce to what is popularly called mobile commerce, or m-commerce. In mobile Internet banking service through wireless local area network, security is a most important factor to consider. We describe the development of security service for mobile Internet banking on Personal Digital Assistants (PDAs). Banking Server and Authentication Server were developed to simulate banking business and to support certificate management of authorized clients, respectively. To increase security, we took hybrid approach in implementation: symmetric block encryption and public-key encryption. Hash function and random number generation were exploited to generate a secret key. The data regarding banking service were encrypted with symmetric block encryption, RC4, and the random number sequence was done with public-key encryption. PDAs communicate through IEEE 802.IIb wireless LAN (Local Area Network) to access banking service. Several banking services and graphic user interfaces, which emulatedthe services of real bank, were developed to verity the working of each security service in PDA, the Banking Server, and the Authentication Server.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.2
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• pp.301-309
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• 2009

This study investigated school food service employees' recognition of sanitation and sanitary education in the Kyunggi area of Korea. In terms of personal hygiene, over 90% of the food service employees acknowledged personal hygiene and regarded it as important. Inspection of personal hygiene before cooking occurred "everyday" (85.5%); however, 17.2% continued cooking after dissatisfactory personal hygiene was identified. The food service employees thought that contaminated food materials (35.3%) was the biggest cause of foodborne illness. Approximately 71.4% of the respondents answered that sanitation education and testing related to cooking were conducted "once every month". In addition, 56.4% answered that education on cooking sanitation was "lots of help" and 36.3% answered it was "very helpful". Upon examining the food service employees' awareness about cooking sanitation over 90% were aware of sanitary cooking methods, and 46.1% responded that their biggest difficulty in performing sanitary cooking procedures was excessive work duties due to a lack of food service employees.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.1574-1585
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• 2007

In the more and more continues traffic difficulty which comes to be serious it is for solve, in order to like this used plan for new town light train automatic fare collection system, the city development which is balance and the passenger whom it uses, in consequence of the fact that recently believer instruction, the automatic fare collection system the reverse which is convenient is used in the scripture season which is embossed with means it introduces it operates and a manpower with the scientific service control which leads the electric computer anger of passenger service improvement and accounting and statistical business it reduces, the use is convenient and the possibility facility of operating efficiently in rational plan in order to be, description below for the service automation equipment where the efficiency improves it is. Service automation equipment uses a scripture season to be the first boundary gate of the passenger, there must be a place where it uses a service automation facility and in order to be convenient, it considers the moving area and a wait of the reverse station passenger moving area and the space where, must secure the automatic fare collection system which it follows in automation of facility and the service operation of the reverse station which is ticket sale, the collection of tickets back the passenger is convenient and in order it will be able to use, must do and must consider, must arrange the efficient characteristic of the maintenance civil official services.

• Journal of the Korean Institute of Rural Architecture
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• v.10 no.4
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• pp.41-48
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• 2008

Recently, Rural village of japan are enlarging and enriching the service of health, medical and welfare facilities for the elderly. Concentrated arrangement of the three types of facilities is one of the effective ways especially for the small-scale local governments. This paper focus on a questionnaire survey of employees who work in the facilities to evaluate service network. Using this survey data, it is used to make a plan of intensive arrangement. As a result, their satisfaction with concentrated arrangement was considerable high. In particular, they expressed satisfaction with service network between Medical and Welfare. Due to increasing outpatients, the concentrated arrangement has contributed to hospital funds and given emotional security to the aged in welfare facilities. In order to promote service network effect, there are many opinions that management of health facilities(local governments) is needed.

• Advances in concrete construction
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• v.8 no.1
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• pp.55-64
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• 2019

Chloride corrosion has become the main factor of reducing the service life of reinforced concrete structures. The object of this paper is to propose a theoretical model that predicts the service life of chloride-corrosive concrete under fatigue load. In the process of modeling, the concrete is divided into two parts, microcrack and matrix. Taking the variation of mcirocrack area caused by fatigue load into account, an equation of chloride diffusion coefficient under fatigue load is established, and then the predictive model is developed based on Fick's second law. This model has an analytic solution and is reasonable in comparison to previous studies. Finally, some factors (chloride diffusion coefficient, surface chloride concentration and fatigue parameter) are analyzed to further investigate this model. The results indicate: the time to pit-to-crack transition and time to crack growth should not be neglected when predicting service life of concrete in strong corrosive condition; the type of fatigue loads also has a great impact on lifetime of concrete. In generally, this model is convenient to predict service life of chloride-corrosive concrete with different water to cement ratio, under different corrosive condition and under different types of fatigue load.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.31 no.1
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• pp.118-132
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• 2023

This study aimed to analyze the relationship between the learning perception of aviation service subjects using role play on the interpersonal competence, learning satisfaction, and learning outcomes of college students majoring in aviation service. A survey was conducted targeting 217 university students majoring in aviation service who are enrolled in universities in the metropolitan area and Chungcheong area and have experience in class using role play. In addition, the hypothesis is verified using the structural equation model. Among the perceptions of role play classes experienced by university students majoring in aviation service, 'inter-dependency' was found to have a positive (+) effect on all sub-factors of interpersonal competence. And 'usefulness' confirmed the positive (+) influence relationship with 'temperament for others' and 'communication' except for 'relationship promotion' of interpersonal ability. Among sub-factor of interpersonal competence, it is confirmed that only the factors of 'temperament for others' and 'communication' had an effect on learning satisfaction. And it is proved that learning satisfaction is an important determinant of learning outcomes. Therefore, this study is expected to serve as a basis for deriving an efficient and optimal learning method for practical subjects in aviation service majors.

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.2
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• pp.114-124
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• 2015

In the city, the urban park contributes to the quality of citizen life in many ways, and the importance of the urban park as an urban planning facility is growing each day. In this study, evaluation of park service supply adequacy in Suwon-si, the difference in analysis methods, and the type of land use at urban park catchment area analysis were analyzed. As a result, there were remarkable differences between the two analysis methods. In Suwon-si, the catchment area by network analysis was only about 41% of catchment area by buffer analysis. However, when basic local authorities establish planning of parks and green areas, they use buffer analysis to calculate the park service area. It means that such calculations of urban park service areas may be wider than actually used. Also, because there were differences between urban park catchment areas by land use types, guidelines of planning parks and green areas will be adjusted. Although quantitative expansion of the park area is also important for the realization of green welfare, it is necessary to consider city characteristics such as the population size, population density, land use types, and so on.