Results 21 to 30 of about 760,200 (265)

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

Resource-based cities: Spatial structure and evolutionary identification based on nighttime light images

Frontiers in Earth Science, 2022
Dividing the development stage and grasping the best time to transition are significant for resource-based cities (RBCs). However, there is still a lack of research on how to judge the developmental stage of RBCs through objective indicators of urban ...
Shuo Lu, Shuo Lu, Wenzhong Zhang, Wenzhong Zhang, Jiaming Li, Shaohua Wang   +5 more
doaj   +1 more source

Spatial Characteristics of the Tourism Flows in China: A Study Based on the Baidu Index

ISPRS International Journal of Geo-Information, 2021
The characteristics of information flow, as represented by the Baidu index, reflect the pattern of tourism flows between different cities. This paper is based on the Baidu index and applies the seasonal concentration index and social network analysis ...
Yongwei Liu, Wang Liao
doaj   +1 more source

Investigating the Spatial Heterogeneity and Influencing Factors of Urban Multi-Dimensional Network Using Multi-Source Big Data in Hangzhou Metropolitan Circle, Eastern China

Land, 2023
Exploring the spatial heterogeneity of urban multi-dimensional networks and influencing factors are of great significance for the integrated development of metropolitan circle.
Jing Zhang, Lei Li, Congmou Zhu, Qi Hao, Xinming Chen, Zhoulu Yu, Muye Gan, Wuyan Li   +7 more
doaj   +1 more source

Integrating land surface conditions and transport networks to quantify the spatial accessibility of cities in China

Journal of Maps, 2020
Although there is a need to determine the spatial accessibility of cities in China, the limitations in available data and methods hinder research in this area. The main objective of this study was to quantify the accessibility of cities in China.
Wei Chen, Weidong Liu, Zhigao Liu
doaj   +1 more source

Profiling the Spatial Structure of London: From Individual Tweets to Aggregated Functional Zones

ISPRS International Journal of Geo-Information, 2018
Knowledge discovery about people and cities from emerging location data has been an active research field but is still relatively unexplored. In recent years, a considerable amount of work has been developed around the use of social media data, most of ...
Chen Zhong, Shi Zeng, Wei Tu, Mitsuo Yoshida   +3 more
doaj   +1 more source

Environmental factors affecting fear of crime among young women on streets in Seoul

Journal of Asian Architecture and Building Engineering, 2023
In modern society, the fear of crime and actual criminal activities influences the quality of daily life. Individuals vulnerable to crime are more impacted by its fear than its potential direct damage.
Gidong Byun, Mikyoung Ha
doaj   +1 more source

Precise identification and threshold inversion of pores and fissures in CT digital coal rock based on Bi-PTI model

Meitan xuebao, 2023
In the research area of the CT digital coal petrography, the selection of gray threshold directly affects the accuracy of spatial structure remodeling. To allow the pores and fissures space remodeling data to more accurately represent the real structure ...
Chenguang HAO, Xiaoyang GUO, Cunbao DENG, Xinghua ZHANG, Bo ZHAO, Xun WANG   +5 more
doaj   +1 more source

Replicated Spatial Point Pattern Analyses for Ecological Inference: A Tutorial Using the RSPPlme4 Package in R

Frontiers in Forests and Global Change, 2022
The analysis of spatial point patterns has greatly advanced our understanding of ecological processes. However, the methods currently available for analyzing replicated spatial point patterns (RSPPs) are rarely used by ecologists.
Robert Bagchi, Michael C. LaScaleia, Valerie R. Milici, Dipanjana Dalui   +3 more
doaj   +1 more source

Drivers of population divergence and genetic variation in Elymus breviaristatus (Keng) Keng f. (Poaceae: Triticeae), an endemic perennial herb of the Qinghai-Tibet plateau

Frontiers in Ecology and Evolution, 2022
Elymus breviaristatus, a rare grass species with excellent resistance and ecological importance, is narrowly distributed on the Qinghai-Tibet plateau. Populations of E.
Jin Li, Saier Ma, Keke Jiang, Changbing Zhang, Wenhui Liu, Shiyong Chen   +5 more
doaj   +1 more source