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URBAN BUILT-UP AREA EXTRACTION AND APPLICATION BASED ON GF-2 SATELLITE DATA
GF-2 satellite object-oriented method built-up area Shennongjia
2018/5/16
GF-2 satellite was launched in China on August 19, 2014. It has wide potential applications with the spatial resolution of around 1 meter. In this paper, urban built-up area was extracted and classifi...
EVALUATION OF GMSH MESHING ALGORITHMS IN PREPARATION OF HIGH-RESOLUTION WIND SPEED SIMULATIONS IN URBAN AREAS
CFD meshing 3D computational fluid dynamics spatial data evaluation wind speed
2018/6/4
This paper aims to evaluate the applicability of automatically generated meshes produced within the gmsh meshing framework in preparation for high resolution wind speed and atmospheric pressure simula...
SUBTYPE COASTLINE DETERMINATION IN URBAN COAST BASED ON MULTISCALE FEATURES: A CASE STUDY IN TIANJIN, CHINA
Subtype Coastline Multiscale Feature Uncertainty Remote Sensing Tianjin
2018/5/15
In urban coast, coastline is a direct factor to reflect human activities. It is of crucial importance to the understanding of urban growth, resource development and ecological environment. Due to comp...
RESPONSIVE URBAN MODELS BY PROCESSING SETS OF HETEROGENEOUS DATA
Responsive Urban Model Urban Survey Sets of Heterogeneous Data Synthetic Information Model Detailed Information Model Visual Programming Language
2018/6/4
This paper presents some steps in experimentation aimed at describing urban spaces made following the series of earthquakes that affected a vast area of central Italy starting on 24 August 2016. More ...
USING GIS FOR DEVELOPING SUSTAINABLE URBAN GROWTH CASE KYRENIA REGION
GIS MCE Sustainable Urban Growth Urban Analysis Kyrenia
2018/5/8
It is critical to develop urban layers for analysis sustainable urban development possibilities within planning process. Kyrenia Region has many physical, environmental or economic issues that may dan...
CALIBRATED MULTI-TEMPORAL EDGE IMAGES FOR CITY INFRASTRUCTURE GROWTH ASSESSMENT AND PREDICTION
Urbanization Edge images Urban Land Use Infrastructure Growth Multi-Temporal Landsat
2018/4/18
Urban Growth or urbanization can be defined as the gradual process of city’s population growth and infrastructure development. It is typically demonstrated by the expansion of a city’s infrastructure,...
CALIBRATED MULTI-TEMPORAL EDGE IMAGES FOR CITY INFRASTRUCTURE GROWTH ASSESSMENT AND PREDICTION
Urbanization Edge images Urban Land Use Infrastructure Growth Multi-Temporal Landsat
2018/5/8
Urban Growth or urbanization can be defined as the gradual process of city’s population growth and infrastructure development. It is typically demonstrated by the expansion of a city’s infrastructure,...
Remote Sensing Data and SLEUTH Urban Growth Model: As Decision Support Tools for Urban Planning
urban growth urban planning land use land cover SLEUTH model Cellular Automata (CA) remote sensing Sri Lanka
2018/4/3
Sri Lanka is experiencing speedy urbanization by converting the agriculture land and other natural land cover into built-up land. The urban population of Sri Lanka is expected to reach to 60% by 2030 ...
City Networks of Online Commodity Services in China: Empirical Analysis of Tmall Clothing and Electronic Retailers
city networks online commodity services intercity relationships specialization
2018/4/3
City networks have been a critical topic in the fields of urban geography and regional economics. Numerous studies have explored city networks, focusing mainly on infrastructure and industrial network...
考虑线路输送能力利用的空间不均衡性，建立以线路输送能力利用率最大化、上线车组数和乘客出行费用最小化为目标，以交路形式、发车频率、列车编组为决策变量的多交路列车开行方案优化模型.设计线性加权法与遗传算法相结合的求解算法.结合算例，对比单一交路、嵌套交路和衔接交路最优开行方案下的列车运行效果及在不同客流特征下的适用性.结果表明，以输送能力利用率最大化为目标能够有效提升线路输送能力利用率及其空间均衡性，...
目前关于城市住房价格异质性和影响因素研究多侧重于空间位置分析,从城市系统角度刻画住房价格分异现象有待进一步探索。根据“土地利用—交通相互作用理论”,城市空间的发展过程是各类活动通过交通相互作用的过程,本文构建了交通可达性模型,综合全市经济活动空间分布和交通网络评价城市区位条件,并以北京为例,从就业、教育、消费、医疗服务等各方面评价了城市区位条件,在此基础上依据家庭成员结构,模拟分析了家庭区位需求对...
在三轴试验中，较密实砂土是很难最后到达临界状态的。该文在Yu等提出的CASM模型基础上，提出了适合模拟较密实饱和砂土的弹塑性模型。该模型有两方面的改进：一方面，模型将剪胀应力比Md引入剪胀方程；另一方面，模型中硬化参数采用与应力路径无关的参数来替代CASM模型中的塑性体应变增量。经试验结果验证，该模型较适合模拟饱和中密或密实砂土的剪胀特性，同时也能较好地体现中密或密砂剪切过程中的硬化及软化现象。模...
A Database Approach to Very Large LIDAR Data Management
LiDAR data Octree Quadtree Local KD tree Display precision
2015/11/20
This paper presents an approach to realizing LiDAR data management in DBMS. We use octree to partition data space, and build a local KD tree at each octree’s node. In data organization, we take precis...
Practice for Built Environment Awareness: From Survey to 3D Modelling and Related Database
Urban Survey Urban Heritage Colour Planning
2015/11/13
In these pages we present a research project the Faculty of Architecture of the University of Bologna is carrying out, concerning new methods and instruments for the representation of the urban histor...
Villa Adriana in Tivoli: A Method of Survey for Archaeological Heritage
Archaelogy Digital Internet/web Modelling Laser Scanning
2015/11/13
The complex of Villa Adriana at Tivoli is an outstanding archaeological site for its extension and articulation as well as for its state of conservation and originality. It is a sort of synthesis of t...