This article presents information on the study of the flora of Uzbekistan based on grid system mapping. The urban flora of the city of Bukhara was researched in it. As a result of research, the territory of Bukhara ci...This article presents information on the study of the flora of Uzbekistan based on grid system mapping. The urban flora of the city of Bukhara was researched in it. As a result of research, the territory of Bukhara city was divided into 85 indexes based on 1 × 1 km<sup>2</sup> grid mapping system. The diversity and density of species in the indexes are determined. The influence of anthropogenic factors on the diversity of species in the indexes is determined.展开更多
为了有效集成基于主体的模型(Agent Based Model,ABM)和地理信息系统(Geographical Information System,GIS),将经典地理信息系统的功能从着重宏观地理格局的描述扩展到注重微观行为机制的刻画,作者提出并设计了一个具备网格计算能力的...为了有效集成基于主体的模型(Agent Based Model,ABM)和地理信息系统(Geographical Information System,GIS),将经典地理信息系统的功能从着重宏观地理格局的描述扩展到注重微观行为机制的刻画,作者提出并设计了一个具备网格计算能力的集成化城市微模拟平台---Grid ABGIS。首先回顾了目前城市微模拟研究进展,通过对城市微模拟系统信息过程进行归纳和总结,从软件工程的角度提出了"七步法"城市模拟信息工程的基本框架;其次分析了通用多主体城市模拟软件平台Grid ABGIS的信息处理流程和相应的系统需求;最后对Grid ABGIS的系统结构、对象体系结构、数据模型和城市主体对象模板进行了详细设计,进而实现了一个ABGIS原型系统。展开更多
The urban power grid(UPG)combines transmission and distribution networks.Past studies on UPG congestion mitigation have primarily focused on relieving local congestion while ignoring large-scale energy transfer with s...The urban power grid(UPG)combines transmission and distribution networks.Past studies on UPG congestion mitigation have primarily focused on relieving local congestion while ignoring large-scale energy transfer with safety margins and load balancing.This situation is expected to worsen with the proliferation of renewable energy and electric vehicles.In this paper,a two-layer congestion mitigation framework is proposed,one which considers the congestion of the UPG with flexible topologies.In the upper-layer,the particle swarm optimization algorithm is employed to optimize the power supply distribution(PSD)of substation transformers.This is known as the upper-layer PSD.The lower-layer model recalculates the new PSD,known as the lower-layer PSD,based on the topology candidates.A candidate topology is at an optimum when the Euclidean distance mismatch between the upper-and lower-layer PSDs is the smallest.This optimum topology is tested by standard power flow to ascertain its feasibility.The optimum transitioning sequence between the initial and optimum topologies is also determined by the two-layer framework to minimize voltage deviation and line overloading of the UPG considering dynamic thermal rating.The proposed framework is tested on a 56-node test system.Results show that the proposed framework can significantly reduce congestion,maintain safety margins,and determine the optimum transitioning sequence.展开更多
The evolution process of urban design is the result of transformations due to population increase along the expansion of cities on a global scale.Geotechnologies applied to forms of mapping make it possible to underst...The evolution process of urban design is the result of transformations due to population increase along the expansion of cities on a global scale.Geotechnologies applied to forms of mapping make it possible to understand the changes that have occurred in urban spaces in relation to temporal space.The general objective of this study is to analyze the change that occurred from the year 2010 to 2021,in the evolution of urban design,in the city of Marau(southern Brazil).The identification of urban evolution in the years 2010 and 2021 was carried out.These data were modeled using the QGIS software,in the SIRGAS(Geocentric Reference System for the Americas)database,related to the evolution of urban design in Marau.The results demonstrate the need to apply geotechnologies not only in the city of Marau,but in other cities worldwide,because city halls need precision maps,avoiding the fragmentation of the urban fabric,a result of population expansion not projected in the built environment.展开更多
文摘This article presents information on the study of the flora of Uzbekistan based on grid system mapping. The urban flora of the city of Bukhara was researched in it. As a result of research, the territory of Bukhara city was divided into 85 indexes based on 1 × 1 km<sup>2</sup> grid mapping system. The diversity and density of species in the indexes are determined. The influence of anthropogenic factors on the diversity of species in the indexes is determined.
文摘为了有效集成基于主体的模型(Agent Based Model,ABM)和地理信息系统(Geographical Information System,GIS),将经典地理信息系统的功能从着重宏观地理格局的描述扩展到注重微观行为机制的刻画,作者提出并设计了一个具备网格计算能力的集成化城市微模拟平台---Grid ABGIS。首先回顾了目前城市微模拟研究进展,通过对城市微模拟系统信息过程进行归纳和总结,从软件工程的角度提出了"七步法"城市模拟信息工程的基本框架;其次分析了通用多主体城市模拟软件平台Grid ABGIS的信息处理流程和相应的系统需求;最后对Grid ABGIS的系统结构、对象体系结构、数据模型和城市主体对象模板进行了详细设计,进而实现了一个ABGIS原型系统。
基金supported by the Universiti Sains Malaysia,Research University Team(RUTeam)Grant Scheme(No.1001/PELECT/8580011).
文摘The urban power grid(UPG)combines transmission and distribution networks.Past studies on UPG congestion mitigation have primarily focused on relieving local congestion while ignoring large-scale energy transfer with safety margins and load balancing.This situation is expected to worsen with the proliferation of renewable energy and electric vehicles.In this paper,a two-layer congestion mitigation framework is proposed,one which considers the congestion of the UPG with flexible topologies.In the upper-layer,the particle swarm optimization algorithm is employed to optimize the power supply distribution(PSD)of substation transformers.This is known as the upper-layer PSD.The lower-layer model recalculates the new PSD,known as the lower-layer PSD,based on the topology candidates.A candidate topology is at an optimum when the Euclidean distance mismatch between the upper-and lower-layer PSDs is the smallest.This optimum topology is tested by standard power flow to ascertain its feasibility.The optimum transitioning sequence between the initial and optimum topologies is also determined by the two-layer framework to minimize voltage deviation and line overloading of the UPG considering dynamic thermal rating.The proposed framework is tested on a 56-node test system.Results show that the proposed framework can significantly reduce congestion,maintain safety margins,and determine the optimum transitioning sequence.
基金the Center for Studies and Research on Urban Mobility-NEPMOUR,IMED and PPGARQ/IMED for supporting this researchthe Fundação Meridional-IMED for the funding provided through the institutional productivity grantthe National Council for Scientific and Technological Development of Brazil for the research productivity grant(Process:313040/2020-6).
文摘The evolution process of urban design is the result of transformations due to population increase along the expansion of cities on a global scale.Geotechnologies applied to forms of mapping make it possible to understand the changes that have occurred in urban spaces in relation to temporal space.The general objective of this study is to analyze the change that occurred from the year 2010 to 2021,in the evolution of urban design,in the city of Marau(southern Brazil).The identification of urban evolution in the years 2010 and 2021 was carried out.These data were modeled using the QGIS software,in the SIRGAS(Geocentric Reference System for the Americas)database,related to the evolution of urban design in Marau.The results demonstrate the need to apply geotechnologies not only in the city of Marau,but in other cities worldwide,because city halls need precision maps,avoiding the fragmentation of the urban fabric,a result of population expansion not projected in the built environment.