• Journal of Korea Game Society
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• v.9 no.6
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• pp.11-20
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• 2009

When an online game is considered as a commercial product, now an online game should arouse the consumer's purchase desires as a service item. Most of all, the contents of an online game are important, but, on the other hand, beyond the online game services, it is also important to improve the accessibility of online games, which are developed through the specific testing processes. That is, it is necessary to develop comprehensive and systematic game testing processes considering even the aspects of the usability of the online games on the basis of the qualitative and measureable game tests. Therefore, this study is intended to suggest the proper scopes of the online game testing processes in a view that an online game is a commercial product.

• The Journal of Aerospace Industry
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• s.49
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• pp.3-40
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• 1999

In this paper, the types of airport operation are categorized four groups in context of ownership and operational management; full government ownership and operation; government ownership with privatization of selected service; government ownership and private management; private ownership and operation. The term,"Privatization" has a different definition when it is used in different contexts and cultures. In this paper, the definition of"Privatization" in the context of airport, is that the movement of an entity from the government sector to the private sector. To keep pace with the remarkable growth in the air traffic volume of passengers and cargo, more and more mega-international airports have been built or are under construction. As the air transport demand is expected to increase at an even greater rate in the 21st century, the need for new conception airport is merging to solve the current problems such as airport congestions and flight delays which will be essential factors to decide whether the competitive airports or not. Presently, we researched the type of the operational management to strengthen the competitiveness for Korea's airports. Specifically, It is focused on the government ownership with privatization of selected services. It seems to be evaluated as government ownership and private management when it is actively utilized within Korea Airport Authority's law or Inchon International Airport's public corporation law. To make more competitive airport in 21st Century, however, it is desirable to seek for the method to gradually evaluate to private ownership and operation.

• Journal of Computing Science and Engineering
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• v.4 no.2
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• pp.128-152
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• 2010

With the advance of computer and communication technologies, wireless sensor networks (WSNs) are increasingly used in many aspects of our daily life. However, since the battery lifetime of WSN nodes is restricted, the WSN lifetime is also limited. Therefore, it is crucial to determine this limited lifetime in advance for preventing service interruptions in critical applications. This paper proposes a feasible static analysis approach to estimating the worstcase lifetime of a WSN. Assuming known routes with a given sensor network topology and SMAC as the underlying MAC protocol, we statically estimate the lifetime of each sensor node with a fixed initial energy budget. These estimations are then compared with the results obtained through simulation which run with the same energy budget on each node. Experimental results of our research on TinyOS applications indicate that our approach can safely and accurately estimate worst-case lifetime of the WSN. To the best of our knowledge, our work is the first one to estimate the worst-case lifetime of WSNs through a static analysis method.

• Korean Parent-Child Health Journal
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• v.14 no.2
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• pp.69-75
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• 2011

Purpose: This study is descriptive survey research that examined nurses' communication skills perceived by inpatient children's parents for short period due to acute diseases in children's hospital and aimed to make a qualitative improvement of nursing with the basic materials for improving nursing service for inpatient children. Methods: The subjects were 177 parents of children who were hospitalized in a children's hospital in Gwangju from May 1 to June 16, 2009. A structured questionnaire which consisted of a communication and interpersonal skills developed by Yodkowsky et al. (2006). Data collected from them were processed and analyzed with the SPSS/WIN program. Results: Nurses' communication skills as perceived by the parents of inpatients scored an average 4.11, communication scored 4.02, and interpersonal relationship scored 4.18. The scores of interpersonal relationship were mostly higher. Nurses' communication skills as perceived by the parents of inpatients according to general characteristics showed statistically significant differences depending on the number of children and the birth order. Conclusion: it was considered that nurses' emotional characteristics were important for inpatient children. it is thought that the positive communication skills considering the emotional aspects in planning and performing nursing for inpatient children should be achieved.

• International Commerce and Information Review
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• v.10 no.4
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• pp.301-319
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• 2008

The development of Korea in the Northeast through trade is not a matter of choice as far as national strategy is concerned, but is an important national policy that is a matter of life or death which will determine the future fate of Korea. This thesis will attempt to arrive at a general, tangible plan for the development of Korea in the Northeast centered around trade by examining the change in naval environment at home and abroad, the given economic situation in the Northeast, and the present state of essential port development in Korea-China-Japan. Its objective will be to provide strategies for the development of Busan port confrontation. For the last ten years, China has been growing at a rapid rate. Since a lot of the volume of naval trade is being transferred from Korea to China, we must do everything we can to improve the service and reduce cost. In addition, Japan also is losing international position. Japan's government and the private industry are trying to make Super Core Ports a prominent feature of their port system. If the Busan port system is to remain competitive, these aspects of the Japanese port system must be kept in mind to prevent trade from going to other ports with more competitive systems.

• Proceedings of the KIEE Conference
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• 1999.11d
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• pp.909-911
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• 1999

Metalization technology of the fine patterns by electroless plating is required in place of electrodeposition as high-density printed circuit boards (PCB) become indispensable with the miniaturization of electronic components. Electroless nickel plating is a suitable diffusion barrier between conductor metals, such as Al and Cu, and solder is essetional in electronic packaging in order to sustain a long period of service. Moreover, Electroless nickel has particular characteristics including non-magnetic property, amorphous structure, wear resistance, corrosion protection and thermal stability. In this study fundamental aspects of electroless nickel deposition were studied with effect of complexeing agents of different kinds. Then, the property of electroless deposit are controlled by the composition of the deposition solution, the deposition condition such as temperature and pH value and so on. the characteristics of the deposits has been carried out.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06a
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• pp.250-252
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• 2006

Web technologies are gaining increased importance in automation and control systems. However, the choice of Web technologies depends on the use cases in the application environment. In industrial systems, the data can be got not only from many different field systems and devices but also from different OPC (OLE for Process Control) Servers. Current OPC Client might be able to read simple data from OPC Server, but there are some problems to get structured data and to exchange structured information between collaborating applications. Therefore, OPC Foundation has defined interfaces to OPC XML-DA (OPC XML Data Access) and OPC Complex Data that aim to solve those problems. The OPC XML-DA can facilitate the exchange of plant data across the internet, and upwards into the enterprise domain. In addition, the OPC Complex Data will extend the OPC DA specification to allow the OPC Client to read and decode any type of data from measurement and control systems on the plant floor. This paper will describe the concept of OPC XML-DA and OPC Complex Data. And then it proposes a mechanism to implement the OPC Complex Data into OPC XML-DA Server. Additionally, the paper also discusses the security aspects.

• The Journal of the Korea Contents Association
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• v.8 no.11
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• pp.171-181
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• 2008

It is true that medical fields have been grown a lot in all its aspects and they have given much efforts to suppress intractable disease including atopic dermatitis. However, instead of decreasing those diseases, it is not controllably increased in recent years. Especially atopic dermatitis is now an issue in medical and social community because of its serious direct or indirect damages. So that, this study gives few suggestions for utilizing manipulative therapies in CAM to minimize direct or indirect atopic damages and to provide diverse medical service methods which have yet not been used in aptopic dermatitis patients and their family.

• Health Policy and Management
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• v.26 no.4
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• pp.271-278
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• 2016

Background: This study purposed to analyze the relationship between regional obesity rates and regional variables. Methods: Data was collected from the Korean Statistical Information Service (KOSIS) and Community Health Survey in 2012. The units of analysis were administrative districts such as city, county, and district. The dependent variable was the age-sex adjusted regional obesity rates. The independent variables were selected to represent four aspects of regions: health behaviour factor, psychological factor, socio-economic factor, and physical environment factor. Along with the traditional ordinary least square (OLS) regression analysis model, this study applied geographically weighted regression (GWR) analysis to calculate the regression coefficients for each region. Results: The OLS results showed that there were significant differences in regional obesity rates in high-risk drinking, walking, depression, and financial independence. The GWR results showed that the size of regression coefficients in independent variables was differed by regions. Conclusion: Our results can help in providing useful information for health policy makers. Regional characteristics should be considered when allocating health resources and developing health-related programs.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.5
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• pp.1873-1880
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• 2010

Recently, the world's Information Society, already central to humankind, is rapidly changing towards a fully ubiquitous computing society through the development of USN technology. USN application web services provide convenience through environment recognition as well as automatic recognition of specific situations all through the use of USN technology. It has been proven that it can also enable the safety of human life by providing an optimal service through real-time management. Therefore, USN application web services using such technology can be applied to various aspects of life. In this paper, we have implemented a scenario of with a specific user requirement regarding collected meta-data and sensing data based USN technology. We have implemented a visualization of the solutions suitable for each scenario.