• 국제초고층학회논문집
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• 제12권1호
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• pp.83-91
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• 2023

Under the dual pressure of population growth and land shortage, threedimensional development is the inevitable choice for cities in China. In such a scenario, a mixed-use complex has considerable potential in its realization and research. Based on space syntax and the three-dimensional visibility graph analysis, this paper describes the spatial and functional layout of the Shanghai Super Brand Mall and studies the relationship between spatial visibility and user behaviour through linear regression analysis and correlation analysis. This paper studies three different types of user behaviour, namely, path selection, staying selection, and store selection, and finds that spatial visibility and accessibility have different effects on user behaviour depending on the type and purpose of the activity. This paper reveals the influence of spatial and functional layout on user behaviour and puts forward the corresponding design strategy under the three-dimensional environment.

• 건축역사연구
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• 제14권2호
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• pp.103-142
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• 2005

All architectures in the history have certain attitudes of aesthetic expression of their own. Depending on the culture, such aesthetic attitudes are not the same but different. This paper aims to identify the nature of the difference of aesthetic attitude in the architectures of the East and the West. As a way of approach for this purpose, two keywords are employed as representative concept. They are: 'proportion' and 'vitality'. Proportion, of course, represent the attitude of the Western, while, vitality, the Eastern. Although these two words are subjective selection, it is hoped that the nature of aesthetic attitudes could be observed through the windows of these two representative concepts. We all know that the architects and students of architecture of this period, are very much concerned about the aesthetic expression of their design. However, the value judgement of aesthetic quality seems quite confused in modem period. If the nature of aesthetic attitudes of the Eastern and the Western architecture is well understood, such understanding will help much for the direction of architectural aesthetic of future architecture.

• 건축역사연구
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• 제8권3호
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• pp.75-89
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• 1999

Under the WTO system, global standardization of professionalism in architecture practice calls for transformation of curriculum in architectural education in Korea. This paper compares the curriculum standards of international accrediting authorities such as NAAB and RIBA based on UIA accord which defines fundamental knowledge and abilities of an architect. As a result this paper extracts 51 achievement oriented criteria of architectural education in Korea. It can be categorized as communication, design, cultural context(history and theory, human behavior and social aspects), technical systems(structural systems, environmental control systems, construction material and assemblies) and practice(project process, project economics and business management, laws and regulations). Based on this recommended Korean curriculum standards, current curriculum is analyzed focusing on the 5 architectural programs in Seoul. Through this analysis, it became clear that some area - social and economic aspects in architecture, sustainability in architecture, understanding and selection of construction material, assemblies and environmental control system, recycling of existing building, professional liability, professional rules of conduct, project economics and project management - need to be covered and emphasized to meet the international standards in professional education in architecture. The result in this paper will be used as a basic data in the process of finding the direction of restructuring curriculum for professional architectural education in Korea.

• 농촌계획
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• 제16권3호
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• pp.1-10
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• 2010

The purpose of this study is to find out the color preference on rural rooftop color. Today, public profit value of a rural community has been heavily recognized in the areas of preservation of pro-environmental and traditional life styles and foundation of collective community. Comparatively with urban, rural town conserves the scenic of those days when the historic landscape existed. Therefore, elements of historic and tradition in rural town are interesting resources to people who want traditional experience. Color is one of the most influenced elements for the image of Landscape. On the other hand, radical modernization has brought conflicting color element that does not blend with existing environmental color. Among others, roof represents one of the important traits of rapidly developing rural community due to vast amount of space it covers. In order to come up with more appropriate coloring scheme, it is necessary determine color that forms a balance with present conditions of rural life and historic landscape. This study provides more objective rooftop coloring selection process by employing additional surveys regarding color image adjective. I justified necessity of the balance between environmental color and roof color through analyzing correlation between environmental color of the rural town and Color Image Scale of the preliminary selection of roofs.

• KIEAE Journal
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• 제16권6호
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• pp.21-27
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• 2016

Purpose: The research is focused on the 25th King Cheoljong's mother's parents' traditional House in Ganghwa-do, for finding out how the surrounding natural environment was considered with Pungsu, a traditional ecological architectural science in case of site selection and architectural planning by the relative of royal family of Joseon period. Method: The study is processed as follows. Human Environment of the region where the house is located, is analyzed in chapter 2. Feature of mountain expressed as dragon and four important hills of the house are analyzed in chapter 3, Highly regarded factors for site selection by the scholar of the Realist School of Confucianism such as wind environment, the front and back of the Hyunmubong and building orientation are analyzed in chapter 4. Finally Pungsu applied in architectural space is analyzed in chapter 5. Result: The house considered Pungsu to some extent, but it shows the appearance contrary to the Pungsu in a certain part in order to show authority and proud as the house of the relatives of the King. It can be seen that the degree of application of Pungsu may be different depending on the will of the building owner.

• Journal of Ship and Ocean Technology
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• 제8권2호
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• pp.41-60
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• 2004

Ship design process requires lots of complicated analyses for determining a large number of design variables. Due to its complexity, the process is divided into several tractable designs or analysis problems. The interdependent relationship requires repetitive works. This paper employs collaborative optimization (CO), one of the multidisciplinary design optimization (MDO) techniques, for treating such complex relationship. CO guarantees disciplinary autonomy while maintaining interdisciplinary compatibility due to its bi-level optimization structure. However, the considerably increased computational time and the slow convergence have been reported as its drawbacks. This paper proposes the use of an approximation model in place of the disciplinary optimization in the system-level optimization. Neural network classification is employed as a classifier to determine whether a design point is feasible or not. Kriging is also combined with the classification to make up for the weakness that the classification cannot estimate the degree of infeasibility. For the purpose of enhancing the accuracy of a predicted optimum and reducing the required number of disciplinary optimizations, an approximation management framework is also employed in the system-level optimization.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권7호
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• pp.2960-2976
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• 2018

The limited storage and computing capacity hinder the development of cognitive radio ad hoc networks (CRAHNs). To solve the problem, a new paradigm of cloud-based CRAHN has been proposed, in which a CRAHN will make use of the computation and storage resources of the cloud. This paper envisions an integrated CRAHN-cloud network architecture. In this architecture, some cognitive radio users (CUs) who satisfy the required metrics could perform as mobile gateway candidates to connect other ordinary CUs with the cloud. These mobile gateway candidates are dynamically clustered according to different related metrics. Cluster head and time-to-live value are determined in each cluster. In this paper, the gateway advertisement and discovery issues are first addressed to propose a hybrid gateway discovery mechanism. After that, a QoS-based gateway selection algorithm is proposed for each CU to select the optimal gateway. Simulations are carried out to evaluate the performance of the overall scheme, which incorporates the proposed clustering and gateway selection algorithms. The results show that the proposed scheme can achieve about 11% higher average throughput, 10% lower end-to-end delay, and 8% lower packet drop fractions compared with the existing scheme.

• 한국환경복원기술학회지
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• 제5권3호
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• pp.31-39
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• 2002

The main purpose of this study is to select the appropriate wild plants on the rooftop. For the purpose of the experiments, 14 wild plants(12 korean native wild plants and 2 naturalized wild plants) were chosen. As the results of the experiments, the wild plants growing on the culture soil(perlite) Among the 14 kinds of wild plants, such as Chrysanthemum boreale, Taraxacum mongolicum, Aster Koraiensis, Aster yomena, Oenothera odorata, Oenothera lamarckiana, Patrinia scabiosaefolia showed good effects on growth of above ground parts. Therefore, these plants will effective for the rooftop revegation. Callistephus chinensis and Lotus corniculatus var. Japonicus showed good height growth, wherase covering rate was worst. Chrysanthemum boreale, Platycodon grandiflorum, Patrinia scabiosaefolia were plant height, wherase covering rate was not good. As the results of the experiments, the wild plants growing on the culture soil(vermiculite) Taraxacum mongolicum, Aster Koraiensis, Oenothera lamarckiana, Aster yomena showed good effects on growth of above ground parts. Consequently, korean native wild plants such as Taraxacum mongolicum, Aster Koraiensis, Aster yomena and naturalized wild plants such as Oenothera odorata, Oenothera lamarckiana were effective wild plants for rooftop revegetation.

• 한국정보통신학회논문지
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• 제8권7호
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• pp.1553-1557
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• 2004

임베디드 하드웨어 유전자 알고리즘을 위한 실시간 처리 시스템을 설계하였다. 제안된 시스템은 유전자 알고리즘의 기본 모듈인 selection, crossover, 및 mutation과 evaluation을 병행적으로 동작시키기 위해서 이중 프로세서로 구현하였다. 구현된 시스템은 두개의 Xscale 프로세서와 진화 하드웨어가 내장된 FPGA 로 구성되었다. 또한 본 시스템은 유전자 알고리즘의 기본 모듈 수행이 두 개의 프로세서에 자동으로 균등 배분되는 구조를 지니고 있어, 유전자 알고리즘 처리의 효율성을 극대화 할 수 있다. 제안된 임베디드 하드웨어 유전자 알고리즘 처리 시스템은 임베디드 리눅스 운영체제에서 수행되며 진화 하드웨어에서 실시간으로 처리된다. 또한 제안된 이중 프로세서의 각 프로세서 모듈은 동일한 구조로 가지고 있으므로 여러 개의 모듈을 직렬 연결하여 빠른 하드웨어 유전자 알고리즘 실시간 처리에 그대로 사용될 수 있다.

• 융합보안논문지
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• 제12권3호
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• pp.35-43
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• 2012

최근 스마트 폰과 같은 다양한 단말의 보급이 확대됨에 따라 지속적인 트래픽 증가로 인해 이를 처리하기 위한 전달망 및 통신망 제어기술 또한 급속히 발전하고 있다. 이러한 추세를 반영하여 차세대 네트워크는 다양한 스위칭 계층으로 구성되고 이를 Generalized Multi-Protocol Label Switching(GMPLS) 프로토콜로 제어하는 형태로 구성될 것이다. 그러나 다계층 네트워크에서의 장애는 보호 복구 기능들 간의 충돌을 유발하여, 복구 시간의 지연, 망 자원의 비효율적 사용 등을 초래할 수 있다. 따라서 계층별 보호 복구 기능 간의 신속한 복구 경로설정이 다계층 네트워크에서 가장 중요한 과제가 되었다. 본 논문에서는 PCE(Path Computation Element)를 기반으로 다계층, 다중 도메인 네트워크에서 최적의 트래픽 엔지니어링을 지원하기 위한 기법을 제안하였다.