Results 21 to 30 of about 17,807,427 (330)
Population dynamics with spatial structure and an Allee effect
bioRxiv, 2020 Allee effects describe populations in which long-term survival is only possible if the population density is above some threshold level. A simple mathematical model of an Allee effect is one where initial densities below the threshold lead to population ...
Anudeep Surendran, M. Plank, M. Simpson
semanticscholar +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 +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
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 +5 more
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The Spatial Structure of An Accretion Disk [PDF]
, 2007 Based on the microlensing variability of the two-image gravitational lens HE1104-1805 observed between 0.4 and 8 microns, we have measured the size and wavelength-dependent structure of the quasar accretion disk.
Christopher S. Kochanek +7 more
core +2 more sources
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 +3 more
doaj +1 more source
Spatially embedded random networks [PDF]
, 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
Spatial structure of quasilocalized vibrations in nearly jammed amorphous solids [PDF]
Physical Review E, 2018 The low-temperature properties of amorphous solids are widely believed to be controlled by the low-frequency quasilocalized modes. However, what governs their spatial structure and density is unclear.
M. Shimada +3 more
semanticscholar +1 more source
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 +5 more
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Spatial Pattern and Influencing Factors of Urban Invisible Consumption: A Case Study of Changsha
Redai 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
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