Results 21 to 30 of about 3,119,517 (283)

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

Spatially embedded random networks [PDF]

open access: yes, 2007
Many real-world networks analyzed in modern network theory have a natural spatial element; e.g., the Internet, social networks, neural networks, etc. Yet, aside from a comparatively small number of somewhat specialized and domain-specific studies, the ...
B. Bollobás   +10 more
core   +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

open access: yesFrontiers 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   +5 more
doaj   +1 more source

Spatial Pattern and Influencing Factors of Urban Invisible Consumption: A Case Study of Changsha

open access: yesRedai dili, 2023
Urban invisible consumption space is a physical consumption space with weak visibility in urban public space, which has become a new channel for urban business and consumption development.
Liang Yixin   +4 more
doaj   +1 more source

The spatial structure of networks [PDF]

open access: yes, 2004
We study networks that connect points in geographic space, such as transportation networks and the Internet. We find that there are strong signatures in these networks of topography and use patterns, giving the networks shapes that are quite distinct ...
Gastner, Michael T., Newman, M. E. J.
core   +3 more sources

A Multi-Feature Framework for Quantifying Information Content of Optical Remote Sensing Imagery

open access: yesRemote Sensing, 2022
Quantifying the information content of remote sensing images is considered to be a fundamental task in quantitative remote sensing. Traditionally, the grayscale entropy designed by Shannon’s information theory cannot capture the spatial structure of ...
Luo Silong   +5 more
doaj   +1 more source

Identifying the Production–Living–Ecological Functional Structure of Haikou City by Integrating Empirical Knowledge with Multi-Source Data

open access: yesISPRS International Journal of Geo-Information, 2023
The inefficient use of urban resources and the imbalance of spatial structures make optimizing land use management a top priority in urban environmental management.
Bingbing Zhao   +4 more
doaj   +1 more source

Synergistic effect of CaO and red mud on the water resistance of phosphogypsum-based cementitious materials

open access: yesCase Studies in Construction Materials
To enhance the water resistance of phosphogypsum-based cementitious materials and promote solid-waste utilization, red mud (RM) was incorporated to develop phosphogypsum-based composites (RPG).
Jiazhe Chen   +4 more
doaj   +1 more source

Exploring the Spatial Structural and Optimization Modes of the Tourism Economy in Beibu Gulf Urban Agglomeration

open access: yesRedai dili, 2023
The strategic position of the Beibu Gulf urban agglomeration has become increasingly prominent in terms of national economic development. In this paper, we propose the life cycle theory of urban agglomerations from the perspective of tourism-economic ...
Li Huiqin, Luo Yujie, Hou Linchun
doaj   +1 more source

Substitutability, Spatial Structure, and Spatial Interaction [PDF]

open access: yesGeographical Analysis, 1991
This paper attempts to distill the relationship among spatial structure, consumer preferences, and spatial interaction. It introduces the notion of substitutability. Destinations are substitutable in both economic‐behavioral and physical‐locational senses.
openaire   +1 more source

Home - About - Disclaimer - Privacy