• Journal of Institute of Control, Robotics and Systems
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• v.5 no.3
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• pp.324-337
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• 1999

In this work, a new 3-PSP type spatial 3-degree-of-freedom parallel mechanism is proposed. And a 6 DOF hybrid manipulator which consists of a 3-PPR type planar 3 DOF parallel mechanism and a new 3-PSP type spatial 3-degree-of-freedom parallel mechanism is proposed. Both 3 DOF mechanism modules have closed-form forward position solutions and particularly, 3-PSP spatial module has unique forward position solution. Firstly, the closed-form position analysis and first-order kinematic analysis for the proposed 3-PSP type module are carried out, and the first-order kinematic characteristics are examined via maximum singular value and the isotropic index of the mechanism. It is shown through these analyses that the mechanism has excellent isotrpic property throughout the workspace. Secondly, position and kinematic analysis of the 3-PPR planar module are briefly described. Thirdly, the forward position analysis for the 3-PPR 3-PSP type 6 degree-of-freedom hybrid mechanism consisting of a 3-PPR planar module and a 3-PSP spatial module is performed along with the analysis of the workspace size and first-order kinematic characteristics. The kinematic characteristics of the proposed hybrid manipulator are compared to those of geometrically similar Stewart manipulator.

• Korean Institute of Interior Design Journal
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• v.16 no.6
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• pp.161-171
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• 2007

With a rapid expansion of the elderly population, there is a greater demand for the construction of senior complexes. However, due to a land price increase and insufficient financial resources, accommodating such a demand is challenging. Also, as aging progresses, many elderlies tend to be isolated from local community, because of deteriorating health. As a result, constructing senior complexes is becoming an important community project. The construction of senior complexes in Korea has been started since early 2000, so it is still in the beginning stage in Korea. However, in the case of Japan, they have more experience in building such buildings. Therefore, in this study, 49 senior complexes in Japan were analysed, and the following spatial characteristics were derived. 1. By classifying senior complexes largely into a complex type with similar facilities and a complex type with different facilities, 12 types were derived. Depending on the types of facilities, basic sharing rooms and selectively sharing rooms by need are suggested. 2. Depending on 4 characteristics, such as spatial composition, entrance type, circulation form, and complex facility type, 17 types of senior complexes were derived, and the characteristics of each type are presented.

• Journal of Korean Association for Spatial Structures
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• v.8 no.1
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• pp.5-12
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• 2008

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.4
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• pp.137-142
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• 2017

Recently, along with the development of IoT technology, technologies for wirelessly sensing various data, such as sensor nodes, RFID, CCTV, smart phones, etc., have rapidly developed, and in the field of multiple applications, to utilize sensor network related technology Have been actively pursued in various fields. Therefore, as GeoSensor utilization increases, query processing systems for efficiently processing 2D data such as spatial sensor data are actively researched. However, existing spatial query processing systems do not support a spatial-temporal data type and a spatial-temporal operator for processing spatial-temporal sensor data. Therefore, they are inadequate for processing spatial-temporal sensor data like GeoSensor. Accordingly, this paper developed a spatial-temporal query processing system, for efficient spatial-temporal query processing of spatial-temporal sensor data in a sensor network.

• Journal of the Economic Geographical Society of Korea
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• v.14 no.1
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• pp.33-51
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• 2011

This study investigates the spatial characteristics of the provision of and demand for the private tutoring service industries and the consumer groups. For the purpose, we analyze the spatial characteristics of various types of tutoring institutes in the Seoul Metropolitan area. In particular, we exam the spatial distribution patterns of attendants of tutoring institutes by institution type as well as the resident population by attendant age group. By applying spatial autocorrelation analysis, we examine the spatial clustering patterns of tutoring institutes and attendants by type. The results show distinct differences in the spatial distribution patterns by tutoring institute type as well as by attendant age group. We found significant socio-economic variables which influence on the spatial distribution of tutoring institutes. Finally, we propose private tutoring service provision models constructed with these variables through multiple regression analysis.

• Journal of Korea Spatial Information System Society
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• v.10 no.4
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• pp.59-66
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• 2008

GeoSensor network means sensor network infra and related software of specific form monitoring a variety of circumstances over geospatial. And these GeoSensor network is implemented by mixing data stream with spatial attribute, spatial relation. But, until a recent date sensor network system has been concentrated on a store and search method of sensor data stream except for a spatial information. In this paper, we propose a definition of spatial data stream and its join strategy model at GeoSensor network, which combine data stream with spatial data. Spatial data stream s defining in this paper are dynamic spatial data stream of a moving object type and static spatial data stream of a fixed type. Dynamic spatial data stream is data stream transmitted by moving sensor as GPS, while static spatial data stream is generated by joining a data stream of general sensor and a relation with location values of these sensors. This paper propose joins of dynamic spatial data stream and static spatial data stream, and cost models estimating join cost. Finally, we show verification of proposed cost models and performance by join strategy.

• Journal of the Korean Institute of Landscape Architecture
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• v.35 no.4
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• pp.1-15
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• 2007

The purpose of this study is to mate a basic foundation for the discourse of Koreanness of contemporary Korean landscape architecture by way of searching the conceptual definitions of Koreanness through analysis of Koreanness discourses. The results are that discourses of Koreanness are to be classified in aesthetics type, spatial-temporal type, and cultural type. Aesthetics type is understood as style in terms of formal and design representation planning principles of spatial composition and immanence in terms of philosophy. Spatial-temporal type is understood as contemporaneity. This is classified as the concept of connoting of tradition, and separating and keeping a distance from tradition. Cultural type is prescribed as cultural identity. This is classified as unity, generality and individuality. The intension of Koreanness of these types is represented as an aspect changing and shifting from one regulation to another regulation. First, in the concerns of substantial archetypes like Korean original form, decorative element, spatial composition aesthetic perception and philosophy, Koreanness shifts to the point of view of contemporaniety which is created and defined in history. Second, Koreanness as contemporaniety shows a trend of shifting the point of view which is to be found through the reconsideration on modem history and modernism. Third, Koreanness defined as cultural identity shows a trend to emphasize the differences in other cultures and includes all the modem cultural agents. The number of views understood as individuality and denial are small but provide important points. Programmatic definition of Koreanness is not suitable. This basic study uses a stipulative or operational definition of Koreanness in many ways such as spatial and regional identity. Koreanness study for Korean contemporary landscape architecture requires a systematic understanding of modernity and colonization relating to identity. Also, it is needed to elaborate on the discourse to divide the meaning of a concept of identity.

• Journal of Families and Better Life
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• v.21 no.6
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• pp.107-115
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• 2003

The purpose of this study was to Investigate the spatial composition characteristics of elderly housing facilities in USA, in order to refer them in establishing the basic plan for elderly housing in Korea. The case study performed in this study from July 23 to July 31 is based on ten housing facilities for the elderly located at California in USA. The results of this study were as follows; 1. The type of floor plan was classified into the U type, ㅁ type, L type, and ㅡ type. And they had an outside space called a garden(courtyard). 2. The kinds of common spaces could be grouped as the space for basic living, for leisure, and for convenient living. Also it was all common that the housing facility had shared livingroom, shared diningroom, activity room and garden. The type of the common spaces was categorized into two types, the centralized type where the shared space was located at the center of the housing facilities, and the distributed type, depending on the degree of separation between common spaces and units. ,3. The kinds of units was classified into studio, oneroom, one bedroom and two bedroom.

• Journal of Korean Society of Rural Planning
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• v.1 no.2
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• pp.53-66
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• 1995

This study aims at analyzing of residents'attitudes and spatial structures in the rural villages reconstructed by the Rural Village Improvement Project(type A), and suggesting the guiding directions for planning rural villages. Six rural villages located in KyungGi province were selected for case study. The Major findings can be summarized as follows : 1) The ratio of type A project(newly planned village) in the total cases of the Rural Village Improvement Project has increased since 1990, In the majority(91.2%) of the type A project, the project area is below 2 ha and density of dwelling unit is below 40 households/ha. 2) The three spatial structures of newly planned rural village, i.e., Loop pattern, Cul-de-sac pattern, and Dendritic pattern, are identified. And the barns in the newly-build houses are categorized into the five types : the vertical addition type, the horizontal addition type, the vertical- horizontal addition type, the no- barn type, and the reused -barn type. 3) In the newly planned rural villages, the level of satisfactions for the quality of house and water & sewer system is remarkably higher than in the existing rural villages. These are the positive effects caused by the Rural Village Improvement Project. 4) The majority of the villagers think the improvement of the existing rural village, instead of redevelopment or newly planned village, is most desirable, which means the improvement of houses, roads, and sanitary facilities while preserving the spatial structures of the existing village.

• Journal of the Korean housing association
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• v.22 no.1
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• pp.35-42
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• 2011

The objective of this study is to investigate the functional conformity based on the analysis of the spatial connectivity of block housing using space syntax. Three cases were selected which have important meanings in 1920s. The properties of spatial configuration were derived from an urban-context approach and without urban context analysis, and spatial connectivity and functional conformity were analyzed using references. The results of the study revealed that the arrangement of block housing were different from one another notwithstanding their similar layout characteristics. The relationships between urban streets and housing complexes were identified, and the public spaces were being arranged as semi-public spaces, whereas blocks as private spaces by separating functions. This study provides the implications for the planning of low rise-high density housings by means of analyzing the spatial connectivity of the spatial layout characteristics of European block housing, recognizing the relationships between urban communities and housing complexes.