• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.4 no.2
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• pp.4-10
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• 1993

In mobile radio communication, propagation paths are time or spacial varying because of the motion of mobile unit. The propagation path loss not only involves frequency and distance but also the antenna height at both the base station and the mobile unit, terrain configuration, and the man made en- vironment. Thhese additional factors make the prediction of propagation path loss of mobile radio signals more difficult. In this paper, it is measured field strenght of mobile radio signals in Daejeon and Seoul area, also calculated local median, 500m sample mean, and stadard deviation. As the result of analysis, it can be seen that propagation path loss of measured data is similiar to predicted field strength, especially local median is dependent upon base antenna height, terrain configuration and the man-made environment. The standard deviation has been noted to lie between 2 and 10 dBuV.

• Journal of the Korean Institute of Educational Facilities
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• v.20 no.1
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• pp.27-36
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• 2013

The purpose of this study is to provide the configuration alternatives for the special classroom of the elementary school reflecting current trends of the health promotion education. Initiated by WHO(World Health Organization), the concept of health-promoting school has been widely advocated as an approach to enhance public health through school based health promotion. Korean Ministry of Education has also adopted the concept and many elementary schools has been participating in developing the curricula and educating students as the health promoting model schools. This study analyzes methodologies and education programs of current health promoting curriculum of the schools since 2009, explores the spacial features of other public facilities offering similar education program and surveys relating teachers. Based on the analysis, the study seeks the basic elements for health promoting classroom and deduces several classroom space configurations to optimize students' learning effects. This study can be a case method for other classroom typology studies especially with the current diversification tendency of elementary school education services.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.11a
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• pp.188-192
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• 2008

The Purpose of this paper is to analyze of community space of high-rise housing as a basic research towards developing a model of spacial convergence. For this, 10 cases of high-rise housing complexes are compiled. Research methods are as follows. First, through the analysis of 10 high-rise housing complexes, the types of community space program are categorized by concepts. Second, community space plans are analyzed by floor. The results of this study are summarized as follows. First, through the analysis of 10 cases, the types of community space program are classified 8 categories : Culture, Health, Leisure, Education, Life-style Assistance, Business Assistance, Open Space, Commercial Facility. Second, community space plans are arranged at the lower floor of the building at a high ratio. Third, the types of convergence model for community programs are suggested by 4 categories : Human, Time, Experience, Local Community. Fourth, community space configuration is categorized by 4 types.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.6
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• pp.1411-1418
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• 2015

Currently, the previous studies on the concept, configuration, and system regarding spacial information policies show the little progress. However, these studies only propose the basic structure system in terms of a policy theory, seeking and suggesting the basic concept to establish spacial information policies. In the shift of a new paradigm from a PC-based paradigm that began in the mid-2000s to the current smart society based on mobile devises, such as smart phones, this study thus reviewed the strategic direction of the propulsion to establish the desired future strategy for the spatial technology policy with spatial information system that can influence the future national competitiveness of Korea. The results of this study is expected to be used to analyze a variety of issues and technological changes on geospatial intelligence at the global level and to support the establishment of a road-map for policies and research & development on domestic geospatial information.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.20 no.4
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• pp.205-222
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• 2009

University libraries are involved in college education and college education is also involved in university libraries. To the knowledge information society increases the competitive power of the university and the academic library which national competitive power strengthens further must be operated developmentally. Professors and students to support research and learning activities appropriate facilities and systems must be equipped with features and the role of university libraries will be fulfilled properly. In this study, we analyze changes in the configuration space, and accordingly remodel before and after the user satisfaction survey of spatial configuration on the users' satisfaction and the results are to analyze based on C University Library. As a result of this study, the library space was utilized to determine the importance of purpose in the future, these results increase the quality of library service or library user satisfaction survey. Study will be a good reference for researchers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.433-442
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• 2017

This study consists of five case studies of the catering facilities of newly-built elementary schools' in Sejong City, regarding the spatial configuration and allocation. The analysis indicated that the space allocated in the cooking area in the five schools compared to the standard was as follows: School A; 99.2%, B; 91.1%, C; 81.4%, D; 110.8%, E; 88.1%. Accordingly, the cooking area was close to, or slightly above the standard; nevertheless, other areas in the facilities were not allocated sufficient space and were not appropriately planned. Among the other findings, the receiving areas of three schools were not even planned, and the receiving works were carried out in the pre-preparation area. Considering the flow of the dish-washing process, the width of the room should be at least 3.6 meters with a passage width of 1.6 meters, and easy access to the cooking and dining areas must be equipped. An interview with all five supervisors showed that most complaints focused on the cooking and dishwashing areas, whereas there were none in the storage and workers' area. The result highlights the importance of the cooking and dishwashing areas as the main functions in catering facilities, and future planning strategies should consider this aspect.

• Korean Institute of Interior Design Journal
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• v.20 no.1
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• pp.199-207
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• 2011

After the development of printing technology since the 15th century and the rise of citizen consciousness in the 18th century, the library has taken a public concept. And after the 20th century, its role as a public library for the public was stressed, and as its spatial composition became miniaturized and specialized, its function changed from stacking and reading to various kinds including culture and service and is getting more complex beside the function of a library. Thereupon, this study aims to figure out the limitations of public libraries' opening years shown in advanced researches and understand the current status of spatial composition by complexation with the subjects of five public libraries opened after the end of December, 2006 in order to examine their tendencies of complexation and the characteristics of spatial composition by the complexation of public libraries. As a result, the present public libraries have at leaser more than two spaces with complex functions. According to the result of analysis on the types, locational relations between spaces showed the mixed type the most. In the types of building allocation, the building integrated type had a higher percentage than the separated type. About the types of entrance, the one common door type was fewer than the two separate door type. In the analysis on the types of the interior line of flow, the common type was similar to the dispersed type, and it is thought to be resulted from spatial composition rather than the preplanned line of flow.

• Journal of The Korea Institute of Healthcare Architecture
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• v.29 no.2
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• pp.39-48
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• 2023

Purpose: In Korea, the increase rate of the number of mentally ill patients increases, and the hospitalization period for severely mentally ill patients to stay in acute wards is long and the re-hospitalization rate is high. In order to improve the dignity of patients with acute mental illness and to plan a therapeutic environment for this, this study attempted to present a basic framework of spacial planning for establishing guidelines for psychiatric acute ward in general hospitals. Methods: By analyzing the acute psychiatric ward guidelines of the UK, Australia, and the US., this study analyzed the areas and required rooms of psychiatric acute ward in general hospitals, as well as the net floor area of each room, and the connection between the rooms. Results: As a result of the study, the basic framework for the ward areas and the required rooms, the net floor areas of the rooms, and the connection between the rooms were presented for the establishment of guidelines for the psychiatric acute ward in general hospitals. Implication: The results of the study will be used as a basic framework of space planning for establishing of guidelines for the psychiatric acute ward in general hospitals and will contribute to the establishment of detailed guidelines based on the space configuration through surveys and analysis of space use status, operation status, and expert interviews in Korea.

• Tunnel and Underground Space
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• v.17 no.5
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• pp.350-359
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• 2007

Most large cut slopes of open pit mines, roadways, and railways are steeply inclined and composed with rocks that do not contain soils. However, these rock slopes suffer both weathering and fragmentation. In the case of steep slopes, falling rock and collapse of a slope may often occur due to surface erosion. Cast-in place concrete and rubble work are the most widely used earth structure-based pressure supports that act as restraints against the collapse of the rock slope. In order to overcome the shortcomings of conventional retaining walls, a segmental grid retaining wall is being used with connects precasted segments to construct the wall. In this study, laboratory model test was conducted to estimate deformation behavior of segmental grid retaining wall with configuration of rear strecher, height and inclination of the wall. In order to examine the behavior characteristics of a segmental grid retaining wall, this research analyzes the aspects of spacial displacement through relative displacement according to change in the inclination of the wall. Also, the walls behavior according to the formation and status of the rear stretcher which serves the role of transferring the load from the header and the stretcher which make up the wall, the displacement of backfill materials in the wall, and the location of the maximum load were surveyed and the characteristics of displacement in the segmental grid retaining wall were observed. The test results of the segmental grid retaining wall showed that there was a sudden increase in failure load according to the decrease in the wall's height and the size of the in was greatly decreased. Furthermore, it revealed that with identical inclination and height, the structure of the rear stitcher did not greatly affect the starting point or size of maximum horizontal displacement, but rather had a stronger effect on the inclination of the wall.