• Proceedings of the Korea Society for Industrial Systems Conference
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• 2007.02a
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• pp.87-96
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• 2007

Ubiquitous is a Latin-derived word meaning "to exist at any time and place" like water or air. In computing, the word "ubiquitous" indicates an environment in which users have access to networks without any limitation regarding computer networks or places. Important issues in building Ubiquitous Korea (U-Korea) are the social problems appearing with a rapid increase in the old age population. Nowadays, with the rise of the nuclear family, the increase in the number of elderly people living alone, and the change in the status of women, both wives and husbands are employed outside the home, and the relatives who would be responsible for supporting the elderly sometimes are on long or short business trips, and it happens that old people can't be looked after. Therefore the government developed a wireless paging system for the sick, disabled, old and weak so that when an emergency happens, by just simply dialing 119, an emergency aid center could take prompt action. However, the present wireless paging systems composing the under-layer of the emergency aid information system have some problems, such as, a lack of reliability, problems among terminals, mobile transmitters and receiving terminals, the users' refusal to admit the need for the system and poor operational skills, administrators' perfunctory management and checks, etc. On account of these problems, the system efficiency has degraded and therefore a system upgrade is necessary. In this paper, we attempt to evaluate the newly implemented SAFE119 system, a new wireless paging system seeking to correct the problems of the current system.

• Journal of Korean Society of Transportation
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• v.26 no.6
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• pp.133-142
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• 2008

The term, travel time reliability, refers to variations in journey time that travelers cannot predict. This issue has been one of the main research topics in transport studies. This paper, especially, investigates the value of travel time reliability. The marginal substitution rate method is suggested as the way for the valuation and travelers' stated preference data are collected based on a choice experiment. A mode choice model is estimated using the data surveyed. The parameters of travel costs and travel time reliability from the model are used to calculate the marginal substitution rate that is interpreted as the value of travel time reliability. The value is arranged by travel areas of intercity and urban trips and by journey purposes of working and non-working types. The result of this research is expected to be helpful of conducting more cautious economic feasibility studies of transport schemes.

• Journal of the Korean association of regional geographers
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• v.11 no.3
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• pp.351-366
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• 2005

In Joseon dynasty, national roads for mainly official trips, were designed to connect capital directly to each county seat or eupchi, and militarily strategic points. The entrance of county seat where national road reach to (sometimes there has been a gate of fortress), regarded as main entrance of the county seat Also the direction county office or gwan-a ordinally heads was regarded as main entrance. Therefore, starting point of national road from county seat was not always heading for capital, but south because most of county offices head south. Nevertheless, actual traffic often ignore such a symbolic rule, and formed another practical routes.

• Journal of Nutrition and Health
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• v.41 no.8
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• pp.860-869
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• 2008

The purposes of this study were to investigate use patterns of nutrition information service of 50-and-older adults and analyze the differences in use patterns of nutrition information service according to their socio-demographic variables. The survey was conducted with 500 adults aged 50-and-over living in Seoul between March 28 and April 10, 2007. A total of 401 questionnaires were used for analysis (use rate 80.2%) and the statistical data analyses were completed using SPSS Win (ver 12.0). The main results of this study were as follows. First, most respondents (73.3%) realized the need for nutrition counseling or education. However, 65.3% of respondents have little experience in nutrition counseling or education. Second, the most preferred methods of nutrition counseling or education were field trips (27.7%), counseling in hospitals/public health centers (23.4%), cooking classes (23.2%). And the most often cited sources of nutrition information were TV/radio (66.6%) and newspapers/magazines/books (41.6%). Third, sociodemographic variables such as sex, age, education level, occupations were significantly related to methods of nutrition counseling or education. And variables such as age, education level, occupations were significantly related to often cited sources of nutrition information. Also sex, age, education level, occupations were significantly related to needs for nutrirtion information service.

• International Journal of Human Ecology
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• v.9 no.2
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• pp.107-116
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• 2008

A new movement in forming community villages for better living standards is becoming popular. In order to sustain a proper community, it is essential to design proper community programs and facilities, which can encourage the proactive participation of residents. In this study, detailed aspects of the Mindlre (Dandelion) community (including formation process and management of the village) are investigated. The Mindlre community is a successful community village in Korea concerned with residents' participation and community activities. The community is located in Sancheong, Gyungsangnamdo province in Korea. The study methods are references, field trips, and interviews with residents. Six areas were surveyed and investigated: the physical environment of the Mindlre community and eco-friendly elements, respondents' background and the motivation to join, residents composition, residents' participation in the formation process of the community, self-management systems and common activities, and residents's life satisfaction. The mindlre Community was founded on Christian religions faith. The primary idea of this village was building a new hope for rural areas without discrimination. The size of the village was expanded with housing for teachers and students who were linked with the Mindlre School (substitution school). When the community was founded, existing shapes of the village were preserved. The village was physically renovated based on the original environment, in addition nature friendly materials and methods were used. The residents were proactively involved in the community through regular meetings, self-regulation, and community worship. Although the survey results should that most residents were highly satisfied with living standards, there seemed to be no clear division between community facilities and private houses. A systematic and detailed space planning technique was required. In addition, various community facilities are required due to the expansion of the community.

• Journal of the Korean Geographical Society
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• v.42 no.3 s.120
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• pp.421-433
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• 2007

The Metropolitan Areas have experienced the phenomenon that some of their peripheral parts emerged as a core business area because of the relocation of residential and economic activities from the central area. An important phenomenon in the spatial transformation of metropolitan area is the weakening of centrality in the center and the increasing strength of centrality in the periphery. This paper examined the changing patterns of spatial interaction in the Seoul Metropolitan area through an analysis on outflow trips. Outflow trip by Seoul decreased in nearby regions and increased in remote regions, however as times goes by, the spatial patterns of the largest outflow trip destination were diversified and the rate of outflow trip to Seoul has decreased in the periphery regions. This research reveals that the most remarkable changes of spatial interactions occurred nearby regions of Seoul and also the changes of outflow trip by Seoul was also distinct. In relation to this, the results arising from the similarity analysis by the variance of trip clearly show the changing spatial patterns of interaction in Yongin, Seoul, Suwon and Hwaseong.

• Journal of The Korean Association For Science Education
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• v.24 no.1
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• pp.157-170
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• 2004

Students experience science not only through school science lessons but also through various other channels. Science-related facilities, including science museums and centers, are important channels for informal science education. Korea has a number of governmental and private facilities in which young people can experience various aspects of scientific activities, and many of them also provide the programs supporting out-of-school science activities. However, there has been no systematic survey study on those facilities providing out-of-school activities, thus they have not been used effectively as well as their social utility is not fully realized. To this end, in 2002 researchers of this study carried out surveys (1) of the facilities supporting out-of-school science activities and (2) of science programs provided by these facilities. The surveys show that there are approximately 180 facilities supporting science activities in Korea. More than 40% of them are located in Seoul and Gyeonggi areas. Among them, the proportion of special theme science museums was the greatest (37.9%). The facilities supporting out-of-school science activities usually do not target the specific age groups but are intended for all people. The proportion of governmental facilities exceeds that of private ones. 41.8% of the facilities examined in this study run their own science activity programs. Among the 10 categories of the programs, 'science class' type programs were the most common. There were more programs for elementary and middle school students than preschoolers, high school students and adults. The contents of the programs were more related to astronomy and meteorology, the observation of living things and field trips. Despite their high practical potential, the special theme science museums were found to be lacking in relevant programs, which could fulfill their values for informal science education.

• Hwankyungkyoyuk
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• v.18 no.3 s.28
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• pp.45-58
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• 2005

The Purpose of this study is to help children practice environmentally friendliness by promoting Personalized Environment. Therefore, implemented the project 'Environment' that included natural and social environment in the area that had high potential energy for environmental education, it was explored how the project affects the personalized environment of students. The project 'Environment' was implemented, usually focused on field trips. 35 study subjects were selected from 2 classes in D elementary school in D city The study was conducted from march 2004 to November 2004. Research material was collected from participant observation, in-depth interview, products from teaching-learning process, diary, and video record Ethnographic research was used. Study data were analyzed 3 times. 1st analysis was needed to collect data related to students' senses of and interests in environment, and to shape the framework related to the theme. End analysis was used to categorize the main factors such as knowledge understanding, function, value attitude, action, which all affect the personalized environment of students. In 3rd analysis, it was examined what affected the personalized environment of children and the related factors were logically, objectively inferred and analyzed. The results of the study were as follows: First, the project 'Environment' developed children's knowledge and understanding about environment. Second, the children formed proper values and attitudes towards environment. Third, the children came to develop their learning abilities on environment. Fourth, the children came to have environmentally friendliness in everyday lives. Consequently, the project 'Environment' helped children to have Personalized Environment.

• Korean Journal of Plant Resources
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• v.31 no.2
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• pp.162-194
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• 2018

We investigated vascular plants of Jindo Island in Jindo-gun, Jeollanam-do, Korea. A total of 22 field trips were carried out over the course of 48 days from May 2012 to October 2014. As a result, 782 taxa belong to 134 families, 437 genera, 704 species, 11 subspecies, 60 varieties and 7 forms were identified. These include the following: 2 taxa (Drosera peltata var. nipponica, Cleisostoma scolopendrifolium) of Endangered Wildlife Class II under the Act on Wildlife Protection and Management Law. 14 taxa of Korean endemic plants, 53 taxa of floristic regional indicator plants in the third to fifth degrees. In all, 73 taxa of naturalized plants were recorded with the naturalization rate of 9.3%.

• Proceedings of the KSR Conference
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• 2009.05a
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• pp.1769-1778
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• 2009

Due to the industrialization and urbanization, the transport of hazardous materials increases, which rises possibilities in occurring prospective accidents in terms of hazardous material transport as well. This study applied the model developed from the previous research to analyze the scale of damage areas from the accidents related to hazardous material accidents, as well as suggested a method to measure automatically the scale of accident including casualties and environmental damage based on the guideline which suggests the quantities of hazardous materials exposed from an accident and was defined in the study of standardization for hazardous material classification. A buffering analysis technique of Geographic Information System (GIS) was applied for that. To apply the model which evaluates the scale of population and exposure to environment on each link, rail network, zones, rail accident data, rail freight trips, and locations of rivers etc were complied as a database for GIS analysis. In conclusion, a method to measure damage areas by the types of hazardous materials was introduced using a Clip and a Special Join technique for overlay analysis.