• Science of Emotion and Sensibility
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• v.22 no.2
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• pp.101-108
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• 2019

The aim of this study was to verify differences in autonomic responses that are affected by the configurations of one-room type units using an electrocardiogram (ECG). Accordingly, 43 one-room units that were collected randomly were classified into ten different types of floor plan configurations mainly according to the location of the bathroom and kitchen. An ECG was subsequently measured for each plan type and the average ratio of the LF/HF (Power in low frequency range/Power in high frequency range) was calculated to measure the comfort level of each space. The results revealed a significant statistical difference between the average LF/HF ratio between the plan types (p < 0.05) and provided compelling evidence suggesting that the configuration of the plan may affect the quality of one-room space. This approach appears to be effective in counteracting stress that may exacerbate psychological disorders in single person households.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.1
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• pp.11-22
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• 2023

A radiating elements fault diagnosis method with simplified radiation pattern measurement procedure was presented for planar active phased array antenna system. For presenting the mentioned method, the technique for linear approximation based on the radiation characteristics of a planar array configuration and a technique for solving a unique solution problem that occur in process of diagnosing a fault in a radiating elements were presented. Based on the presented method and a genetic algorithm, experimental simulations were performed for radiating element defect diagnosis according to various planar active phased array antenna configurations. As a result, it was confirmed that the presented radiating element fault diagnosis method can be smoothly applied to planar active phased antennas having various configurations.

• Journal of KIISE:Computer Systems and Theory
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• v.26 no.1
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• pp.107-116
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• 1999

대칭성(symmetry)은 그래프의 구조와 특성을 시각적으로 표현할 때 중요한 미적 기준 중의 하나이다. 또한 대칭성을 보여주는 드로잉은 전체 그래프가 크기가 작은 부그래트들로부터 반복적으로 구성됨을 보여줌으로써 전체 그래프에 대한 이해를 쉽게 푸는 해주는 장점이 있다. 하지만 일반적인 그래프에서 기하하적 대칭성(geometric symmetry)을 탐지하는 문제는 이미 NP-complete 임이 증명되었으므로 이에 대한 연구는 평면 그래프(planar graph)의 극히 제한적인 부분집합인 트리, 외부 평면 그래프, 임베딩된 (embedded) 평면 그래프 등에 초점이 맞추어져 왔다. 본 논문에서는 평면 그래프에서의 기하학적 대칭성 문제를 연구하였다. 평면 그래프를 이중 연결 성분들로 분할한 다음 이를 각각 다시 삼중 연결 성분들로 분할하여 트리를 구성하고 축소(reduction)개념을 도입함으로써 기하학적 대칭성을 탐지하는 O(n2)시간 알고리즘을 제시하였다. 여기서 n은 그래프의 정점의 개수이다. 이 알고리즘은 평면 그래프를 최대한 대칭적으로 드로잉하는 알고리즘 개발에 이용될 수 있다.

• Journal of the Korean Institute of Intelligent Systems
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• v.12 no.6
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• pp.524-530
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• 2002

This note suggests a stepwise fuzzy moving sliding surface using Sugeno-type fuzzy system and presents a sliding mode control scheme using it. The fuzzy system has the angle of state error vector and the distance from the origin in the phase plane as inputs and a first-order linear differential equation as output. The surface initially passes arbitrary initial states and subsequently moves towards a predetermined surface via rotating or shifting. This method reduces the reaching and tracking time and improves robustness. Conceptually the slope of the Proposed fuzzy moving sliding surface increases stepwise in the stable region of the phase plane. The surface, however, rotates continuously because the surface is a fuzzy system. The asymptotic stability of the fuzzy sliding surface is proved. The validity of the proposed control scheme is shown in computer simulation for a second-order nonlinear system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.8
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• pp.735-744
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• 2016

This study attempted quantitative analysis by space syntax on the plan of a non-hierarchical arrangement, which selected SANAA's work after Almere Stadt Theater, and analyzed the difference in the quantitative value of the non-hierarchical arrangement in plan that appears externally. The analysis results were as follows. First, SANAA's spaces with a non-hierarchical arrangement plan that appears externally showed a definite quantitative value difference, and had a hierarchical space difference in the plan that does not appear externally. Second, the spaces with a high integration value also had a high connectivity value, which is indicated by increasing the number of space openings using the method of giving hierarchy to the non-hierarchical arrangement plan or adjusting the size of the room or location to grant hidden hierarchy. Third, SANAA used exterior corridor rather than interior corridor in grid-type plan to solve the accessibility problem, and the open coat spaces between rooms provide natural lighting and ventilation and are used as equipment that controls the hidden hierarchy of space at the same time.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.7 no.1
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• pp.105-126
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• 1997

충분한 보안 메카니즘과 보안 통신 능력이 없는 지능망에서는 우연이든 고의적이든 민감한 정보에 대한 적법하지 못한 노출이나 변경이 가능성이 더 높게 존재한다. 암호화 및 복호화 알고리즘과 같은 보안 메카니즘이 존재한다는 가정하에서 이 논문은 현재의 지능망에 보안 통신 능력을 추가하기 위한 포괄적인 프레임웍을 제안하다. 이를 위해, 서비스평면(SvP: Service plane), 총괄기능평면(GFP: Global Functional Plane), 분산기능평면(DFP: Distributed Functional Plane) 및 물리평면(Physical Plane)으로 구성되는 현재의 지능망개념모델을 기본으로 의 각 평면에서 추가되어야 할 보안 통신 능력을 제시한다.

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.2
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• pp.279-284
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• 2010

The plane curve approach which was proposed by Boukharouba et. al. is a multi-threshold selection method through searching peak-valley based on histogram cumulative distribution function. However the method is required to select parameters to compose plane curve, and the shape of plane curve is affected according to parameters. Therefore detection of peak-valley is effected by parameters. In this paper, we propose an entropy maximizing-based method to select optimal plane curve parameters, and propose a multi-thresholding method based on the selected parameters. The effectiveness of the proposed method is demonstrated by multi-thresholding experiments on various images and comparison with other conventional thresholding methods based on histogram.

• Archives of design research
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• v.14 no.4
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• pp.209-216
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• 2001

The purpose of this study was to find out the characteristics of the floor plans of luxurious row-houses. The examined objects were 135 floor plans with the individual exclusive space of 50 pyung or more which collected from the solicitations for sale or the magazines of architecture, housing, or interiors. The major findings were summarized as follows: First, it is revealed that as the floor size become bigger, the appropriate additional spaces such as second family room, lounge hobbyroom and Atelier are formed instead of increasing room size. Second, it is revealed that the L- DK type was the most common in LDK system. Third, it is revealed that the master's zone composed generalized layout of 4 sections such as bedroom, sittingroom, bathroom, dressingroom. Fourth, it is revealed that the multifunctional room exist as a individual space located next to the kitchen. It used to be a post of rear balcony.

• Korean Institute of Interior Design Journal
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• v.16 no.3 s.62
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• pp.46-57
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• 2007

본 연구는 현대 집합주택의 개발의 실험적 토대가 되었던 1960년대 이후 1990년대 초반까지의 서울지역 아파트단지들을 중심으로 단지의 측면과 단위평면의 측면에서 시대적 변천과 유형별 특성을 분석하여 국내 집합주거의 양상이 어떻게 전개되어 왔는지를 인식하고, 국내 집합주거의 질적 향상을 위한 대안을 제시하고자 하는 추후 연구의 한 준거를 제시토록 한다. 이를 위하여 집합주거의 생성과 현황에 대하여 일반적인 고찰을 진행하여, 국내 주거양식이 점차로 고층, 고밀화되어가는 과정을 살펴보고, 이러한 주거양식의 집합화가 점차로 정책적인 차원에서 더욱 고려되어지고 있음을 현대에 이르기까지의 시대적 틀 속에서 고찰해 본다. 이와 함께 집합화되는 주거양식이 단위평면속에서는 어떻게 변천해 왔는지를 규모와 제실구성, 설비 및 구조방식, 내부공간 구성방식등으로 나누어 분석한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.236-239
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• 2001

광 인터넷의 서비스는 단일서비스 모델과 도메인 서비스 모델로 구분된다. IETF는 단일서비스 모델의 제어 평면을 위하여 GMPLS를 정의하고 있으며, OIF 및 ODSI는 도메인 서비스 모델 기반의 O-UNI 규격을 정의하고 있다. 광 인터넷을 위한 망 관리 기능은 제어 기능에 비하여 표준화가 활발히 진행되고 있지 않으며, OIF 및 ODSI에서 O-UNI의 구성 및 연결 관리를 위한 MIB를 정의하고 있다. 본 논문에서는 광 네트워크의 제어평면 및 관리평면과 전달평면사이의 개방형 인터페이스 모델을 제안하였다. 본 논문에서 제안한 모델은 네트워크 장비들에게 시스템 관리 기능을 최소화 시키므로 새로운 서비스의 창출 및 소프트웨어의 유지보수를 용이하게 한다.