• KIEAE Journal
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• v.15 no.5
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• pp.59-66
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• 2015

Purpose: Recently, Housing area plan has tried to reflect a public space of various forms. However, most of cases are indiscriminately developments, which don't reflect the diverse needs of residents. In addition, a subject of the public space is not clear and consistently stable of the management, so the residents don't have an interest enough to take advantage of it. Method: In order to make a plan of the public space of a residential complex, an architect designer needs to take a few things into consideration. One is a physical facility in needs. And other one is a management of keeping a social place stably and consistently, which allows residents to be able to interact with each other. It should be regarded for residents to form a sense of belonging, while minimizing the interface friction. When all these problems are fulfilled, an interaction will be made to improve the quality of the living environment. Result: Therefore, in this study, it is necessary to define the meaning of territoriality of the external public space of housing complex. This study makes it possible to improve the relationship of neighborhood and the quality of the life for the residents, depending on the time. This is the first step as 'the research for the territoriality of the external public space of housing complex', in order to define about the concept, function, characteristic of territory(the base of territoriality) and to establish the territoriality that can form the physical or psychological boundary in public space.

• Journal of the Korean housing association
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• v.11 no.3
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• pp.87-98
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• 2000

This study derives problems of external space utilization site from on-site observation and questionnaire survey in order to suggest solutions for the problems. The main results are follows. First, fences as visual boundaries of apartment site play some negative roles - separation of space and heterogeneity of circumstance. This study suggests green fences to cure this problem. Second, residents want to change space use - ground to be used as green space or space for relaxation in stead of parking lots, elevator hall as social space, and underground as bike parks or health centers. Third, rooftop space, used as empty space or machine storage space, should be designed to be utilized as relaxation space by making easy to enter and exit.

• International Journal of Aeronautical and Space Sciences
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• v.18 no.4
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• pp.807-815
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• 2017

For liquid rocket engine(LRE)-based space launch vehicles, longitudinal instability, often referred to as the pogo phenomenon in the literature is predicted. In the building block of system-level task, accurate dynamic modeling of a fluid-filled tank is an essential. This paper attempts to apply the virtual mass method that accounts for the interaction of the vehicle structure and the enclosed liquid oxygen to LOX-filled tanks. The virtual mass method is applied in a modal analysis considering the hydroelastic effect of the launch vehicle tank. This method involves an analysis of the fluid in the tank in the form of mass matrix. To verify the accuracy of this method, the experimental modal data of a small hemispherical tank is used. Finally, the virtual mass method is applied to a 1/8-scale space shuttle external tank. In addition, the LOX tank bottom pressure in the external tank model is estimated. The LOX tank bottom pressure is the factor required for the coupling of the LOX tank with the propulsion system. The small hemispherical tank analysis provides relatively accurate results, and the 1/8-scale space shuttle external tank provides reasonable results. The LOX tank bottom pressure is also similar to that in the numerical results of a previous analysis.

• Journal of the Korean Institute of Landscape Architecture
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• v.27 no.3
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• pp.18-31
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• 1999

The research deals with external space Seowon(lecture hall) dedicated to education and memorial rises in Sangju area of Choson Dynasty. Characteristics of Seowon as follow; 1. Seowon of Sangju area were built from the middle of 17C to the beginning of 18C. Ideological background of building functioning were grafted into the belief in the three God governing Childbirth, the theory of feng-shui(wind-and water-magic) which is in close connection with the principles of yin and yang, and confucianism and the philosophy of lao-tze and chung-tze. The formation of space were horizontally arrangement and vertical arrangement as the first-learning and then-ancestor shrine of Youngnam provinces. 2. Background and factors of site selection were applied geographical feature, tried to connect owner home town. 3. The shape of path of flow were simple of vertical and curved composition, were continued, were stabilized through composition of human scale's space by reasonable internal. A case of Sangju area, D/H ratio of the front area of buildings and courts was as follows. D/H=1>Hyangkyo> houses on the river>temples>lecture halls. D/H ratio ot the backside areas is as follows. D/H=1>Hyangkyo>houses on the river>lecture halls. 4. Inner garden were planted deciduous than evergreen trees with Lagerstroemia indica. Enclosed dominant trees were planted by Pinus densiflora, Querces seuata.construct GEM strain, and examined for the expression and functional stability in microcosms.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2008.05a
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• pp.190-195
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• 2008

Aggressive behavior and the purchase of systematic marketing strategy and the marketing strategy is applied consistently integrated image management needs. However, domestic fashion brand shops selling space, the reality is reckless use of the design elements and an age, and despite a high level of sales, but consumers are not getting the environment will he provided. Teenie Winnie the characteristics of burial space and tim ENC literature, materials, research through the local environment, architectural design, the human aspect, the store environment, external components, the investigation focuses on internal components. Maketing aspects, VP, IP, PP josago to systematically on a colorful aspects of the comparative analysis would be linked up. Winnie the characteristics of burial space and tim ENC literature, materials, research through the local environment, architectural design, the human aspect, the store environment, external components, the investigation focuses on internal components. Maketing aspects, VP, IP, PP josago to systematically on a colorful aspects of the comparative analysis would be linked up. First, the design aspects of the human environment, architecture, environmental stores, external components, internal components can be divided into The brand image and concept of same-store environment of mutual relations in other stores. The interior is an important element in order to draw attention to consumer needs.

• Journal of Astronomy and Space Sciences
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• v.23 no.4
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• pp.405-414
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• 2006

Satellite formation flying has become a critical issue in the aerospace engineering because it is considered as an enabling technology for many space missions. Thus, many nonlinear control theories have been developed for the tracking problem of satellite formation flying, which include full-nonlinear dynamics, external disturbances and parameter uncertainty. In this study, nonlinear adaptive control law is developed using an adaptive backstepping technique to solve the relative position tracking problem of the satellite formation flying in the presence of mass uncertainty and the bounded external disturbance. Simulation studies are included to demonstrate the proposed controller performance. The proposed controller is shown to guarantee the system stability against the external bounded disturbances in the presence of mass uncertainty.

• Proceedings of the KSRS Conference
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• 2008.10a
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• pp.236-239
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• 2008

Korea Aerospace Research Institute (KARI) has been trying for utilizing the polar station in Svalbard, Norway to receive the KOMPSAT-2 images, which are distributed and applied directly for Europe Space Agency (ESA) users. Now, KARI is operating the SpaceCapture-2 system that provides the KOMPSAT-2 catalogue service via the internet, whereas ESA is operating the EOLI-SA tool that provides access to the online ESA catalogues of Earth Observation (EO) products. This paper describes external interface based on service-oriented architecture in order to provide the KOMPSAT-2 catalogue service from the SpaceCapture-2 system to the EOLI-SA tool. As the KOMPSAT-2 catalogue service is available in the EOLI-SA tool through an implementation of external interface, the extend use of KOMPSAT-2 imageries is expected.

• Journal of the Korean housing association
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• v.9 no.2
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• pp.89-96
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• 1998

This study has been designed to explore how the types of housing life-style relate to the preferences of internal and external spaces among multi-family housing residents. Data were collected by questionnaire self-administered to 278 female residents living in multi-family housing over 20s pyong (66$m^2$) in the Kwangju area. General linear model/Duncan-test, and $x^2$-test were used in analyzing the data. In the preferences of internal space, there were significant differences in the needs of an indoor garden, exercise spaces, and a front balcony and in the concept of the living room and the dining-kitchen by types of housing life-style. In the preferences of external spaces, there were significant difference in the preferred type of housing, the preferred residential area, and in the need of an individual storage space and a walking path by types of housing life-style.

• The Bulletin of The Korean Astronomical Society
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• v.44 no.1
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• pp.81.1-81.1
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• 2019

Linear sausage oscillations of a cylinder embedded in a plasma with an azimuthal magnetic field, created by a current on the surface of the cylinder, are studied. Such a plasma configuration could be applied to modelling demonstrate that the lowest radial harmonic of the sausage mode is in the trapped regime for all values of the parallel wave number. In the long-wavelength limit, phase and group speeds of this mode are equal to the Alfven speed in the external medium. It makes the oscillation period to be determined by the ratio of the parallel wavelength, e.g., double the length of an oscillating loop, to the external Alfven speed, allowing for its seismological estimations. The application of the results obtained to the interpretation of long-period (longer than 20-30 s) oscillations of emission intensity detected in solar coronal structure, gives reasonable estimations of the external Alfven speed. Cutoff values of the parallel wavenumber for higher radial harmonics are determined analytically. Implications of this finding to the observational signatures of fast magnetoacoustic wave trains guided by the plasma non-uniformity are discussed.

• The Korean Journal of Air & Space Law and Policy
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• v.12
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• pp.66-77
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• 2000