• Journal of Environmental Science International
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• v.13 no.8
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• pp.721-731
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• 2004

The dispersion of suspended particulates in the coastal complex terrain of mountain-inland basin (city)-sea, considering their recycling was investigated using three-dimensional non-hydrostatic numerical model and lagrangian particle model (or random walk model). Convective boundary layer under synoptic scale westerly wind is developed with a thickness of about I km over the ground in the west of the mountain, while a thickness of thermal internal boundary layer (TIBL) is only confined to less than 200m along the eastern slope of the mountain, below an easterly sea breeze circulation. At the mid of the eastern slop of the mountain, westerly wind confronts easterly sea breeze, which goes to the height of 1700 m above sea level and is finally eastward return flow toward the sea. At this time, particulates floated from the ground surface of the city to the top of TIBL go along the eastern slope of the mountain in the passage of sea breeze, being away the TIBL and reach near the top of the mountain. Then those particulates disperse eastward below the height of sea-breeze circulation and widely spread out over the coastal sea. Total suspended particulate concentration near the ground surface of the city is very low. On the other hand, nighttime radiative cooling produces a shallow nocturnal surface inversion layer (NSIL) of 200 m thickness over the inland surface, but relatively thin thickness less than 100m is found near the mountain surface. As synoptic scale westerly wind should be intensified under the association of mountain wind along the eastern slope of mountain to inland plain and further combine with land-breeze from inland plain toward sea, resulting in strong wind as internal gravity waves with a hydraulic jump motion bounding up to about 1km upper level in the atmosphere in the west of the city and becoming a eastward return flow. Simultaneously, wind near the eastern coastal side of the city was moderate. Since the downward strong wind penetrated into the city, the particulate matters floated near the top of the mountain in the day also moved down along the eastern slope of the mountain, reaching the. downtown and merging in the ground surface inside the NSIL with a maximum ground level concentration of total suspended particulates (TSP) at 0300 LST. Some of them were bounded up from the ground surface to the 1km upper level and the others were forward to the coastal sea surface, showing their dispersions from the coastal NSIL toward the propagation area of internal gravity waves. On the next day at 0600 LST and 0900 LST, the dispersed particulates into the coastal sea could return to the coastal inland area under the influence of sea breeze and the recycled particulates combine with emitted ones from the ground surface, resulting in relatively high TSP concentration. Later, they float again up to the thermal internal boundary layer, following sea breeze circulation.

• Journal of the Korean association of regional geographers
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• v.3 no.1
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• pp.13-34
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• 1997

The impact of a central place on daily living over wide outlying territory has been one of traditional subjects in the field of urban geography. The flow of rural population toward the central city of Chinju characterizes the population movement in Western Kyungnam, where the spillover of urban population into outlying areas, an especially prominent phenomenon in American society, does not occur. The central city of Chinju is supposed to be the most favored settlement area in Western Kyungnam. More than two thousands of teachers. who live in Chinju, cross the city boundary each morning to do their jobs in Western Kyungnam. But only ninety teachers living outside Chinju commute to the workplace in the city. The teachers willingly spend hours commuting each day to enjoy better quality of life in the central city. In fact, the central city of Chinju functions as bedroom communities for many middle-class workers in Western Kyungnam. On the basis of teachers' commuting behavior, four levels of Chinju's urban spheres are identified in Western Kyungnam. As Table-6 and Figure-2 show, the first-order level of Chinju's sphere includes most Myuns of Sanchung/Hadong Guns and some Myuns of Sachun/Gosung Guns. The second-order level comprises Sanchung/Sachun Eubs and many Myuns of Sachun /Gosung Guns. The third-order level is made up of Samchunpo, Hadong/Gosung/Eryung/Namhae/Habchun/Hamyang Eups, and many Myuns of Eryung/Namhae/Habchun Guns. And all of Guchang Gun and most Myuns of Hamyang Gun belong to the fourth-order level of Chinju's sphere. The influence sphere of Metropolitan Chinju is extended farther in the direction of less competition with other metropolises. Such a situation occurs to the west and south of Chinju. Daily commuting, defined as the journeys to and from work, is an excellent indicator for delimiting urban spheres of influence.

• Journal of the Korean Institute of Rural Architecture
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• v.11 no.2
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• pp.29-36
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• 2009

The recently research shows that the many tourists of Suanbo hot spring waters haven't satisfied the service. These reasons due to that they did not properly consider the satisfaction of tourists' services and index. However, satisfaction level of hot spring waters tourists is interacted complicatedly with various factors, the interactions are not easily identified. A structural equations model is adopted to capture the complex relationships among variables. In the model estimation, we used 140 survey data of Suanbo hot spring waters tourists. The SEM with several factors mentioned above as exogenous variables shows that they have complex and strong relationships. As results of a SEM, it was shown that variables influencing in pleasance are surrounding scenery, clean condition inside hot springs and congestion for use in satisfaction level most. Secondly, in case of kindness, attitudes of employees influence in satisfaction level most, followed by attitudes of residents and kindness of employees. Thirdly, in case of information, it was shown guidance on internal roads influencing in satisfaction level most, followed by guidance on owner drivers, guidance on surrounding tourist attractions and guidance on public transportation. Finally, a variable influencing in accessibility most is satisfaction level of public transportation.

• Journal of Environmental Impact Assessment
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• v.16 no.4
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• pp.267-275
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• 2007

In this study, relationship between the air pollution of Siheung city and the relative contribution of automobiles to the city's pollution was evaluated for the first time. Then, new air pollution exposure index was developed through simulation. Using the newly developed index, two different urban development scenarios were compared to present a sustainable urban development plan to reduce air pollution from the land utilization point of view. According to the result of this simulation, air quality of the city was found to be affected significantly by human activities. More populated area showed worse level of air quality. Any development in the city resulted in more automobile activity and deterioration of air quality. This simulation result thus explains that a rapid increase of automobiles accompanied by the land development near local roadsides in the city is the major cause of air pollution in Siheung city. In this study, if urban activities are vigorous in an area with high air pollution, people are more likely to be exposed to air pollutant under the bad environmental conditions. On the other hand, if urban activities are less vigorous in an area with high pollution or if urban activities are vigorous in an area with less pollution, the environmental condition was positive. The APEI (Air Pollution Exposure Index) was developed based on these considerations. Scenarios 1 and 2 were compared and analyzed using APEI. In result, scenario 1 is the case in which land is developed and used in an environmentally favorable manner. From this study, it was proved that the impact of air pollution on human health can be minimized with proper land use. The result form the current study can be used as the basic information to solve problems from improper land utilization and air pollution (by road traffic). It also can be utilized to evaluate air pollution level according to land use and road characteristics and to help to choose the best location of land use to comply with the road function and status.

• Archives of design research
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• v.19 no.1 s.63
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• pp.89-98
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• 2006

As the concept of city changes city is viewed in the perspective of business to make profits, not in the perspective of physical space. In the case of Korea urbanization processed over the level of 80% and the formation of identity is suggested for the way to improve city competitiveness as of globalization and liberalization. Seoulentered the level of developed countries in the perspective of functions and facilities, but its image is evaluated poor because of the lack of cultural competitiveness, tourismattractiveness and service system. Dependency of public transportation which is public facilities representing city indirectly is very high, but in information service and visual systems of pubic transportation operations and management are not enough and differentiated image and loyalty are hard to find. In 2004 government of city of Seoul suggested modifications, but compared to London, Paris and Tokyo consistent system, the lack of control and management of use environment of design, excessive visual information and destruction of connection are pointed out. Therefore to solve these problems the introduction of design system is needed to develop identity after applying characteristics and regulations for using to disordered visual stuff. These procedurescan be explained as City Identity Program (CIP) and this study tries to embody city image through public transportation design system. As the study method for this the status of public transportation design system of London, Paris and Tokyo were searched and compared to that of Seoul. Based on this systematization of symbol marks per public transportation being used right now, the development of design guidelines to form identity, relation of design and the strategy of systematization per method and media were proposed.

• The Journal of the Korea Contents Association
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• v.20 no.1
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• pp.152-164
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• 2020

The purpose of this research is to derive a checklist for the site evaluation of Slow City, and through the excellent cases of Slow City, carry out field investigation to understand the construction characteristics of Slow City in the concept of locality. The subjects of this research are five cases of slow cities in South Korea certified by Citta Slow. Through literature review, combining with the construction characteristics of locality and the evaluation elements of Slow City certification, the checklist of Slow City locality evaluation has been obtained, and the field visit evaluation has been carried out. The change characteristics and construction characteristics are evaluated by the cases. The results are as follows.Through case analysis, it is found that the site-based construction features of Slow City are as follows: Through the introduction of the basic concept of Slow City to create the relevant place environment, and build the overall site of Slow City based on it.The location of Slow City was evaluated as historical·cultural assets>environmental assets>physical assets>living resources, emotional·symbolic assets>social assets.In addition, the level of environmental assets, historical·cultural assets is higher, but the level of living resources, social assets and emotional·symbolic assets is lower. This means that it is necessary to carry out community activities for local residents or use projects to improve regional pride and so on.

• Journal of the Korean Association of Geographic Information Studies
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• v.10 no.4
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• pp.168-178
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• 2007

As the title signifies, the current study aims at the realization of u-City, which is short for the Ubiquitous City. For this purpose, firstly, the meaning of u-City realization is sought in the study based on future urban changes. Along with this, current issues in the course of u-City realization are gathered based on in-depth interviews with relevant experts. Thirdly, necessary for the comprehensive planning and management of u-City, several strategies are presented by classifying it into u-Infra and u-Service, and considering relevant laws and regulations. And the study divided the execution process into project, development and management levels, and then suggests some realization strategies that are level-dependent.

• Spatial Information Research
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• v.20 no.5
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• pp.49-56
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• 2012

Recently, various researches have been attempted to link or integrate BIM and GIS. In particular, some of the researches were progressed to convert the data model between the BIM standard model IFC and the GIS standard model CityGML. However, it is hard to utilize the previous research results yet because characteristics and domains of between two data models are very different, In order to obtain the correlation between BIM and GIS, in this research, we analyzed the characteristics between IFC and CityGML objects of each LOD, And, we analyzed the correlation of IFC and CityGML by performing mapping between IFC and CityGML objects from view point of building with these characteristics. In this research, based on these correlation analysis results, we proposed the efficient interrelation plan between IFC and CityGML.

• Journal of Society of Preventive Korean Medicine
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• v.1 no.1
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• pp.126-136
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• 1997

To procide basic data for improvement of oriental medical care system, the questionnaire interview was carried out with community peoples, over 20 years old, selected randomly in Seoul, Pusan, Taegu and Taejon err. from 10th Mar. to 20th Apr. 1996. The result were summarized as follows: 1. In the general characteristics of subjects, the highest portion of each part was 52.4% of male, 22.4% of thirties, 37.1% of college graduates, 19.1% of married, 30.6% of town dwellers, 63.3% of muddle social class, 26.6% of housewife, 19.3% of student, 16.6% officer and 11.6% of professional technician. 2. The portion of subjects agree to open oriental clinic in western medicine hospital was 60.0%, that of disagreement was 20.1%, Among 60.0% of agreement group, the high rate was showed in female, fifties, middle school graduates, unemployed, middle social level. 3. The rate of positive responses in system of a herb specialist was 64.7%, that of negative responses was 11.6%. Among positive responses, the groups of high rate were male. twenties, above college graduates, student, middle-high social level and city dwellers. 4. In the question whether a pack of herb medicine should be included in medical insurance or not, the rate of agreement was 74.3%, that of disagreement was 4.1%. Amount agreement subjects, the high rate was showed in male, young age, high educated, city dwellers, professional technician middle social class. 5. In the cost of oriental medical care, the portion was divided by 70.3% of expensiveness,25.6% of moderate, 4.1% of low price. among 70.3% of high price, the high rate was in female, forties, agrolivestock-fishery, and town dwellers. 6. In the question what the herb doctor should do for the improvement of oriental medicine, the highest rate was 54.2% in further study. The next was 23.0% in need of western medical and 9.1% in no complain in present situation. Among 54.2% of further study, the high rate was showed in male, forties, high school graduate, profession technician, high social level, christian, married and city dwellers. 7. About institution of oriental care, 86.8% of subjects answered to need of improvement, 8.0% of them replied no problem as present. Amount 86.8% of subjects, the high rate was showed in male, twenties, above college graduate, sales, singles, high social level and city dwellers. 8. About necessity of western medical care instrument in oriental medical hospital, the rate of sightly need was 47.5%, inevitably need was 37.7%, no need was 6.3%, the Positive subjects were showed high rate in male, officer, singer, the younger age, the higher educated, better social level and city dwellers. These results might be useful information for establishing of oriental medical care policies, which open oriental medical clinic in western medical hospital, equip western medical care instrument in oriental medical hospital, improve oriental medical care instrument carry out a herb specialist system, balance the resonable medical care cost and effort for further study & research on oriental medicine to satisfy increasing need of oriental medicine.

• Journal of the Korean Home Economics Association
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• v.41 no.5
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• pp.1-13
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• 2003

This study examined the determinants of urban households' expenditures on alcoholic beverages, using double-hurdle models to distinguish between the decision to purchase (purchase decision) and the decision of how much to consume (expenditure decision). Data for this study were drawn from the 2000 Korean Household Income and Expenditure Survey. Households were likely to purchase alcoholic beverages with increasing of household income, tobacco expenditures, and household size. The age, sex, marital status, occupation, education level, type of house ownership, residing city were significantly related to the purchase decisions. Among those households which drink, as household income and tobacco expenditures increase, the age, sex (male), marital status (married), and education level of a household-head, house ownership, residing city (Seoul) were positively related to and the presence of young children were negatively related to the expenditure level of alcoholic beverages.