• Journal of Advanced Navigation Technology
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• v.15 no.4
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• pp.536-542
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• 2011

This paper considers the performance of tightly-coupled GPS/INS integration using total-state UKF (Unscented Kalman Filter) for multipath error. In the city canyon there exists large multipath error and it may happen that GPS satellites are seen only three or less. For these situations simulations show that the performance of total-state UKF is better than that of EKF in the presence of multipath error. The total-state UKF shows robust performance for multipath error.

• Journal of the Korean Institute of Landscape Architecture
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• v.42 no.2
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• pp.52-64
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• 2014

I the recent years, Seoul, Daejeon, Changwon, and Suncheon have started to strengthen P.R. efforts on eco-brands produced by the city and to publicize as a specialized tourist city in an attempt to change their identity and image. However, there is actually a question whether the efforts of the local governments have any direct impact on satisfaction with urban living environments and the attractions of the city. The purpose of this study was to examine the awareness of residents and visitors about the attractions of Suncheon City as an eco-city and to discuss the planning criteria for the eco-city brand building and its management. The research data was collected in Suncheon City and main results of this study are as follows. The residents and the visitors investigated were satisfied with the environmental friendliness of this city and regarded it as an eco-city. As a result of asking them why they viewed the city as an eco-city, many of the residents cited diverse green tracts of land as the reason, whereas the visitors replied they were satisfied with the state of marshy areas preserved by the city. The psychological factors related to the satisfaction of the eco-city by the residents were composed of four factors, 'cultural factor', 'urban infrastructure factor', 'ecological factor' and 'scenery factor'. The visitors were composed of five factors, 'cultural factor', 'urban infrastructure factor', 'ecological factor', 'scenery factor' and 'amenity factor'. Out of the factors, the cultural factor and the urban infrastructure factor were found to exert the largest influence on the overall satisfaction of the residents and the visitors. The ISA(Importance-Satisfaction Analysis) was made, the residents and the visitors gave top priority to 'diversity of natural attractions', 'pleasant season and weather', 'beautiful scenery', 'diversity of rare animals and plants', 'diversity of parks', 'green areas and streets', 'broad ecological area' and 'the preservation of marshy areas' among the attractions of the eco-city. They placed importance on the activation of green traffic and walking environments as well, but they weren't satisfied with the state of the two in the city. Therefore there was much room for improvement in that regard.

• Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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• 2006.11a
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• pp.121-126
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• 2006

Modern Ocean wave forecasting systems predict the mean sea state, as characterized by the wave spectrum, in a box of size ${\Delta}x{\Delta}y$ surrounding a grid point at location x. It is shown that this approach also allows the determination of deviations from the mean sea state, i.e. the probability distribution function of the surface elevation. Hence, ocean wave forecasting may provide valuable information on extreme sea states.

• Journal of the Korean Home Economics Association
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• v.41 no.12
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• pp.69-89
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• 2003

The purpose of this study was to investigate the current state of divorce negotiations and to identify major variables associated with positive divorce negotiations. Survey research was conducted on 182 men and 246 women residing in Daegu Metropolitan city area who had divorced between July 1999 and June 2002 with at least one child at the time of divorce. In conclusion, it was found that divorce negotiations are more influenced by the characteristics, natures and resources of the subjects than by the nature of issues being negotiated. The study findings' implications for research and practice were also discussed.

• Human Ecology Research
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• v.52 no.2
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• pp.151-164
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• 2014

This study was conducted to explore the relationships between the elderly's existential identity and psychological well-being in accordance with the elderly's age-identity so as to improve the quality of life in the elderly with prolonged lives. The data were collected from respondents who were more than 60 years in age who live in city Suncheon. The statistics used for the data analysis were reliability, frequency, percentage, mean, standard deviation, one way analysis of variance, and multiple regression. The results of this study were as follows: (1) A majority of the elderly (49.8%) acknowledged psychological age as actual age. (2) The degrees of the elderly's existential identity was 54.90, while the degree of the elderly's psychological well-being was 33.07. (3) The elderly's existential identity level was significantly affected by economic state, spouse, age-identity, monthly living expenses, household, religion, career, age, and health state. Further, the elderly's psychological well-being level was significantly affected by existential identity, economic state, spouse, health state, age-identity, monthly living expenses, household, education, career, and age. (4) The variables that affect the elderly's existential identity were age-identity, economic state, health state, religion, monthly living expenses, and career, indicating an explanatory power of 38%. Moreover the variables that affect the elderly's psychological well-being were existential identity, age-identity, economic state, health state, and monthly living expenses, explaining approximately 55% of the total variance.

• Journal of Information Science Theory and Practice
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• v.10 no.1
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• pp.1-17
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• 2022

The article reports the results of an investigation on the practice of providing digital scholarship services at Vietnam National University Ho Chi Minh City, Vietnam. This study is part of an ongoing research project entitled Developing a digital scholarship service framework for universities at Vietnam National University Ho Chi Minh City. It employed a qualitative research approach through in-depth interviews with 31 individuals who are university managers, library managers, lecturers, and postgraduate and undergraduate students from six member universities and Central Library of Vietnam National University Ho Chi Minh City. Research results show that some digital scholarship services have been provided at Vietnam National University Ho Chi Minh City. However, they have not been yet systematically implemented and have not met users' needs. Lack of needed resources such as space, technology infrastructure, human resources, finance, and stakeholder support are among major challenges in developing digital scholarship services. The management of existing digital scholarship services is fragmented without a clear policy for developing digital scholarship and supporting services. The study contributes to the existing knowledge by adding substantially to current understanding of the practice of providing digital scholarship services in Vietnam's universities in the transition period, from state control to autonomy, which has not been much addressed in previous research. Furthermore, this study can be a useful reference for higher education institutions in developing countries regarding implementation of digital scholarship services.

• 한국정보교육학회:학술대회논문집
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• 2011.01a
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• pp.179-185
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• 2011

Recently Internet addiction problem comes to fore as social issues. The phenomenon is increasing rapidly at elementary school life. In our paper, we are going to analysis the interrelation of the state of Internet addition and the school life. We make progress our research for elementary students in Chonan City. According to the poll, 45.4 percent of respondents were disrupted their studies from Internet. Also, 48.3 percent of respondents have difficulties related to the internet addiction.

• Journal of architectural history
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• v.16 no.3
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• pp.21-38
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• 2007

If we take account of the 'Architectural Tradition' which aims a construction of better environment, we can see that this tradition has ended historically toward Utopia. It is a continual trend from ancient Greece to contemporary epoch in each transitional periods and especially in the Renaissance Era. Utopia is an ideal commonwealth in which inhabitants exist under perfect conditions, ideally perfect places or state of things. The plans of utopia are complete projects of image, its goal is an social, political and economical improvement according to the eras. Its plans are characterized by rigid geometrical pattern as circle and square, which contain generally center axis symmetry enclosure. Recent urban and architectural circumstances no longer reflect utopian visions. Since the latter of the 20th century, it appears dystopia on the contrary. Therefore, the utopian ideal city and architecture describes characteristics of the era unlike the continuity of its concept.

• Journal of environmental and Sanitary engineering
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• v.17 no.4
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• pp.19-28
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• 2002

We concluded to analysis the air condition of city area in the Chungbuk province by pollutant concentration and weather survey data to used from the data of Air Pollution Monitoring System until September in 2002 from 1998. The results of this study is to prove out the pollutional phenomena and effects in the each area of Cheong-ju & Je-cheon city and to provide the basic data of comfortable environmental condition in the province. Also, we provide environmental statistical dat for the inhabitants in the province as the present condition analysis of air pollution. We got the conclusion of having air condition as clear state in Chungbuk Province from our analytical results.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.531-533
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• 2003

This study aims at discussing the future trend of the community bus and attempted to route selection by using GIS for the welfare-type community bus, which satisfies the need of elderly and physically handicapped persons in Nagasaki City. In doing so, we have conducted field survey in some sample cities of Kyushu, Japan for taking lessons from the present state analysis of community bus already operating there. As a result of the study, we have been able to identify some best possible routes for the community bus operation in Nagasaki City, which meets the requirement of the welfare community as well as of the general passengers.