• 국제초고층학회논문집
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• 제5권4호
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• pp.271-291
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• 2016

There is much architectural and engineering literature which discusses the virtues of exterior bracing and diagrid systems in regards to sustainability - two systems which generally reduce building materials, enhance structural performance, and decrease overall construction cost. By surveying past, present as well as possible future towers, this paper examines another attribute of these structural systems - the blend of structural functionality and aesthetics. Given the external nature of these structural systems, diagrids and exterior bracings can visually communicate the inherent structural logic of a building while also serving as a medium for artistic effect. Viewed in this light, the visual appeal of these systems can be enhanced to give a tower a more distinct urban identity. This entails the creation of structural elements that are aesthetically pleasing, geometrically coherent and that demonstrate dexterity of application in regards to a building's composition, while also respecting the laws of physics and mechanics. In this fashion, an artistic approach can exhibit structural systems as not just purely rational features that enable the construction of tall buildings, but as important visual components that afford opportunities for creative expression. This paper, therefore, synthesizes the concepts of structural performance and creative artistry to facilitate a better understanding of the aesthetic developments in skyscrapers worldwide.

• 정보통신설비학회논문지
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• 제9권3호
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• pp.92-101
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• 2010

Energy efficiency and safe mobility are the two key constituents of the future automobile. The technologies that enable these features are now heavily dependent upon information and communication technology rather than traditional auto-mechanical technology. This paper presents an exploratory project 'Smart&Green Vehicle Project' at Western Michigan University which is to improve the geographical location accuracy of vehicles and to study various applications of making such location data available. Global Positioning System (GPS), Inertial Navigation System (INS), Vehicular Ad-hoc Network (VANET) technology, and data fusion among these technologies are investigated. Testing and evaluation is done on systems which will gather vehicular positioning data during GPS signal loss. Vehicles in urban settings do not acquire accurate positioning data from GPS alone; therefore there is a need for exploration into technology that can assist GPS in urban settings. The goal of this project is to improve the accuracy of positioning data during a loss of GPS signal. Controlled experiments are performed to gather data which aided in assessing the feasibility of these technologies for use in vehicular platforms.

• 로봇학회논문지
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• 제11권3호
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• pp.115-126
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• 2016

This paper suggests the method of the spherical signature description of 3D point clouds taken from the laser range scanner on the ground vehicle. Based on the spherical signature description of each point, the extractor of significant environmental features is learned by the Deep Belief Nets for the urban structure classification. Arbitrary point among the 3D point cloud can represents its signature in its sky surface by using several neighborhood points. The unit spherical surface centered on that point can be considered to accumulate the evidence of each angular tessellation. According to a kind of point area such as wall, ground, tree, car, and so on, the results of spherical signature description look so different each other. These data can be applied into the Deep Belief Nets, which is one of the Deep Neural Networks, for learning the environmental feature extractor. With this learned feature extractor, 3D points can be classified due to its urban structures well. Experimental results prove that the proposed method based on the spherical signature description and the Deep Belief Nets is suitable for the mobile robots in terms of the classification accuracy.

• 한국건축시공학회지
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• 제11권6호
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• pp.634-644
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• 2011

Recently, As a part of urban forestation, the introductions of green roofs into public projects has been actively driven. Supported by this policy, the sizes of domestic green roof related markets have been rapidly expanding and many types of root barrier materials developed in Korea or abroad are being commercially distributed. In this study, root barrier tests were conducted over two years with nine types of sheet type waterproof materials that are the most commonly used as root barrier layers in green roof systems. The test conditions prepared considered the climates, natural features and vegetation in Korea and the results and related root barrier performance were verified. From the results of this study, the necessity to improve the joint part of root barrier sheets and forming methods has been identified and a measure to improve domestic root barrier testing methods was proposed.

• 한국조사연구학회지:조사연구
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• 제12권2호
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• pp.27-50
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• 2011

도시의 행정수요 측정과 도시경제 운영을 위해 주간활동인구를 파악해야 할 필요성이 증가하였다. 상주인구를 보완하는 개념으로서 센서스의 통근 통학 자료에 근거를 둔 주간인구가 활용되고 있으나 서비스 경제가 압도적인 서울과 같은 대도시의 주간활동인구 파악에는 한계가 있다. 본 연구에서는 도시의 주간활동인구를 파악하기 위한 개념으로서 유동인구를 제시하고 서울시 유동인구 조사의 방법을 소개하였으며 주요 분석결과를 제시하였다. 유동인구 조사자료의 분석 결과 센서스 기반 주간인구에서는 파악할 수 없었던 시간대별, 공간대별 도시 주간활동인구의 분포를 밝힐 수 있었다. 끝으로 유동인구 조사자료를 통해 파악한 주간인구와 센서스 기반 주간인구를 자치구 수준에서 비교함으로써 유동인구 조사 자료의 주요 특성들을 밝혔다.

• 보건교육건강증진학회지
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• 제30권1호
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• pp.41-52
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• 2013

Objectives: Rural-urban differences in suicide have been observed in many settings. However, there has been little research addressing what factors can explain these differences. The purpose of this study was to analyze which compositional factors and contextual factors in local areas might be related to local suicide. Methods: The study design was cross-sectional. The data for 251 primary local governments on their age-standardized suicide mortality and their predefined indicators of compositional factors and contextual factors were obtained from Korean Statistical Information Service as of year 2010. Bivariate analysis including one-way ANOVA and chi-square test were used to identify the differences in local features by area type. Seven poisson regression models for each of total, males, and females were used to analyze which compositional and contextual factors were related to suicide. Results: There were differences in suicide between gu and goon in total, male, and female groups. For total, compositional factors including divorce and smoking rate, and contextual factors including financial independency, water and waterwaste coverage, and number of wastewater discharge factories were found to explain the urban-rural differences. Conclusions: This study provided some evidence that contextual factors at the local level as well as compositional factors are useful for predicting local suicide mortality.

• International Journal of Computer Science & Network Security
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• 제22권1호
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• pp.324-330
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• 2022

At the present stage of the world economic development, a new economic system is being formed, in which non-economic values, in particular environmental and social parameters, have become widespread. A new vision of economic activity is being formed, which acquires the qualities of Smart-economy. The purpose of this paper is reveal the features of managing the development of smart cities as specific entities of the Smart-economy. New functions of economic entities are formed within the framework of the Smart-economy concept, while their role and weight in the localities' activity or formation have changed. Determining that the key trends in the Smart-economy development are such as digitalization, greening, socialization, institutionalization, and urbanization, this is necessary to note that all these trends are most active in the formation of urban ecosystems. These trends are determined by the general population growth and the urban population growth, which requires considerable attention to planning each city's development itself. Such planning could ensure the comfort of living for all its inhabitants, quality, safe, and modern life. The Smart-city's key elements and the intellectualized approach implementation planes to the decision of these or those tasks are definedIt is determined that a new ecosystem of governance is being formed.

• 대한원격탐사학회지
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• 제31권3호
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• pp.255-265
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• 2015

고해상도 위성영상은 실시간으로 정확한 지표 상태에 대한 정보를 수집할 수 있어 도심지 모니터링에 효율적인 수단으로 사용되고 있다. 고해상도 Synthetic Aperture Radar (SAR) 영상은 기상상태와 태양고도의 제약을 받지 않고 영상을 취득할 수 있는 장점을 가지기 때문에 최근 이들 데이터를 활용한 도심지 변화탐지 기술에 대한 관심이 증대되고 있다. 본 연구에서는 Gray-Level Co-Occurrence Matrix (GLCM)을 통한 텍스처 정보추출과 이들 특징 정보를 통합적으로 활용하는 새로운 텍스처 기반의 SAR 변화탐지 기술을 제안하였다. 제안기법의 효용성을 평가하기 위해 기존의 SAR 영상 변화탐지를 위해 많이 사용된 Non-Coherent Change Detection (NCCD) 기법과의 시각적/정량적 비교평가를 수행하였다. 실험결과 제안기법이 보다 높은 변화탐지 정확도를 보였으며 시각적으로도 우수한 결과를 도출하였다. 결과적으로 제안된 변화탐지 방법은 고해상도 SAR 위성영상을 이용한 도심지 변화정보 추출에 유용하게 적용될 수 있으리라 판단된다.

• 한국산학기술학회논문지
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• 제13권12호
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• pp.6118-6127
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• 2012

메소포타미아 문명은 서기전 3800년경에 시작된 수메르 문명에서 시작하여 서기전 600년경 사라진 아시리아와 바빌로니아 문명에 이르기까지 지리적 특징으로 인해 중첩되며 발달하였다. 하기에 3000여년간 지속된 도시의 변화과정을 살펴봄은 초창기 인류문명과 도시에 어떤 요소들이 중요하게 작용 되었는지를 알 수 있는 중요한 동기가 된다. 이 시기에 있었던 30여개의 도시 중 13개의 도시를 선정하여 분석한 결과 첫째 도시의 기능이 농경문화에서 점차 상업, 무역, 군사기능으로 전환되고 있음을 알 수 있었으며, 둘째 도시의 위치가 도시기능과 연관되어 메소포타미아 남부에서 점차 북부로 이동하고 있었고, 셋째 도시의 형태는 '텔' 이라는 구릉위의 도시형태가 점차 평지로 내려오고 있었고 나중에는 지형에 의지하지 않는 계획도시의 형태를 띄게 되었으며, 넷째 신전중심의 도시구조가 왕궁중심의 도시 구조로 서서히 변화하고 있음을 알 수 있었다.

• 한국콘텐츠학회논문지
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• 제16권3호
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• pp.712-721
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• 2016

본 연구는 프로스포츠시설의 입지 유무에 따른 도시특성차이 및 결정요인 분석을 목적으로 한다. 이를 위해 228개 시군구를 대상으로 도시별 특성을 사회 경제 문화 교통 공간특성으로 구분한 뒤 t-검정 및 이항로지스틱모형을 이용해 분석을 수행하였다. 분석 결과 프로스포츠시설 입지의 주요 결정요인은 경제적 여건, 프로스포츠시설의 운영과 관련된 인구, 교통여건 등으로 나타났다. 구체적으로 입지도시는 교통결절지로 일정한 구매력을 갖춘 청장년층이 많고 입지를 위한 대규모 토지가 형성되어 있다는 특징과 함께 일정수준 이상의 도시로서의 기능을 가지고 있는 곳일 가능성이 더 높아진다는 결론이 도출되었다. 최근 각 지방정부는 관중이 유입됨으로써 지역경제를 활성화시킬 수 있고, 반영구적인 시설이용을 통해 긍정적인 파급효과를 누릴 수 있으며, 이를 통해 도시경쟁력 향상이 기대될 수 있다는 점에서 대규모 프로스포츠시설 유치에 관심을 두고 있다. 본 연구결과는 도시경쟁력 향상에 대한 대안으로써 대규모 프로스포츠시설 유치정책이 지방정부의 매력적인 선택이 될 수 있다는 시사점을 제공하고 있다.