Results 31 to 40 of about 10,701,215 (310)

Mapping Urban Spatial Structure Based on POI (Point of Interest) Data: A Case Study of the Central City of Lanzhou, China

ISPRS International Journal of Geo-Information, 2020
The study of urban spatial structure is currently one of the most popular research fields in urban geography. This study uses Lanzhou, one of the major cities in Northwest China, as a case area.
Chenyu Lu, Min Pang, Yang Zhang, Hengji Li, Chengpeng Lu, Xianglong Tang, Wei Cheng   +6 more
doaj   +1 more source

Identification and Optimization of the Spatial Structure of Urban and Rural Settlements from a Hierarchical Network Perspective

Land, 2021
China has entered a new era of comprehensive promotion of rural revitalization and integrated urban–rural development. The identification and optimization of the spatial structure of urban and rural settlements are of great significance to the ...
Qingqing Ye, Jiwei Li, Xuesong Kong, Shaokai Zhang   +3 more
doaj   +1 more source

Detecting Urban Polycentric Structure from POI Data

ISPRS International Journal of Geo-Information, 2019
It is meaningful to analyze urban spatial structure by identifying urban subcenters, and many methods of doing so have been proposed in the published literature.
Yue Deng, Jiping Liu, Yang Liu, An Luo
doaj   +1 more source

Discovering urban spatial-temporal structure from human activity patterns [PDF]

, 2012
Urban geographers, planners, and economists have long been studying urban spatial structure to understand the development of cities. Statistical and data mining techniques, as proposed in this paper, go a long way in improving our knowledge about human ...
Gonzalez, Marta C., Joseph Ferreira, Marta C. Gonzalez, Ferreira, Joseph, Jr., Shan Jiang, Jiang, Shan   +5 more
core   +1 more source

Spatial Pattern of Functional Urban Land Conversion and Expansion under Rapid Urbanization: A Case Study of Changchun, China

Land, 2022
As populations continue to be concentrated in cities, the world will become entirely urbanized, and urban space is undergoing a drastic evolution. Understanding the spatial pattern of conversion and expansion of functional urban land, in the context of ...
Guolei Zhou, Jing Zhang, Chenggu Li, Yanjun Liu   +3 more
doaj   +1 more source

Spatial planning based on urban energy harvesting toward productive urban regions [PDF]

, 2013
The industrial revolution and the exploitation of fossil fuels fostered profound changes on transportation systems and infrastructure enabling unprecedented urban growth.
Leduc, W.R.W.A., Van Kann, Ferry M. G., Kann, F.M.G., van, van Kann, F.M.G., Leduc, Wouter R. W. A., Van Kann, Ferry M. G.; id_orcid   +5 more
core   +1 more source

Spike‐Type Band Alignment via in2Se3/CuI Charge‐Transport Engineering Enables 26% Efficient Lead‐Free RbSn0.5Ge0.5I3 Perovskite Solar Cells

Advanced Materials Interfaces, EarlyView.
A lead‐free and Cd‐free RbSn₀.5Ge₀.5I3 perovskite solar cell is optimized through In2Se3/CuI charge‐transport engineering using SCAPS‐1D. Spike‐type band alignment suppresses interfacial recombination, enhances charge extraction, and achieves a power conversion efficiency of 26.01%, providing an effective strategy for high‐performance and ...
Md. Al Amin, Md. Sanwar Hossain, Md. Feroz Ali, Md Shafiul Alam, Mohammad Ali, Mohammed A. AlAqil   +5 more
wiley   +1 more source

Spatial models for context-aware indoor navigation systems: A survey [PDF]

, 2012
This paper surveys indoor spatial models developed for research fields ranging from mobile robot mapping, to indoor location-based services (LBS), and most recently to context-aware navigation services applied to indoor environments.
Christophe Claramunt, Imad Afyouni, Christophe, Claramunt, RAY, Cyril, Cyril Ray, AFYOUNI, Imad, CLARAMUNT, Christophe   +6 more
core   +1 more source

Exploring the influence of transportation on urban spatial structure using the spatial Durbin model: evidence from 265 prefecture-level cities in China

Computational Urban Science
The interactive relation between transportation and urban spatial structure remains a significant yet challenging issue in transport engineering and urban planning.
Chih-Lin Tung, Sanwei He, Ling Mei, Huiyuan Zhang   +3 more
doaj   +1 more source

A U‐shaped Microfluidic Platform for Culturing Vascularized Colorectal Cancer Spheroids Reveals Tumor–Endothelial Crosstalk and Invasion‐Associated Remodeling

Advanced Materials Technologies, EarlyView.
A closed U‐shaped microfluidic platform symmetrically embeds a single, size‐controlled HT29 colorectal cancer spheroid within a GFP‐HUVEC‐laden fibrin matrix. HT29 spheroids are associated with hyper‐branched endothelial network remodeling, while vascularized co‐culture is accompanied by anisotropic protrusive growth and EMT‐like marker changes in the ...
G. Cretti, M. Ballerini, A. Mantegazza, P. Occhetta, M. Rasponi   +4 more
wiley   +1 more source