Results 71 to 80 of about 2,170,238 (197)

Nonlocality-controlled interaction of spatial solitons in nematic liquid crystals

open access: yes, 2006
We demonstrate experimentally that the interactions between a pair of nonlocal spatial optical solitons in a nematic liquid crystal (NLC) can be controlled by the degree of nonlocality.
Guo, Qi   +4 more
core   +1 more source

A methodology for neural spatial interaction modelling [PDF]

open access: yes
This paper presents a methodology for neural spatial interaction modelling. Particular emphasis is laid on design, estimation and performance issues in both cases, unconstrained and singly constrained spatial interaction.
Fischer, Manfred M., Reismann, Martin
core  

On spatial equilibria in a social interaction model [PDF]

open access: yes
Social interactions are at the essence of societies and explain the gathering of individuals in villages, agglomerations, or cities. We study the emergence of multiple agglomerations as resulting from the interplay between spatial interaction ...
MOSSAY, Pascal, PICARD, Pierre M.
core   +3 more sources

Spatial interaction modeling of interregional commodity flows [PDF]

open access: yes
Understanding the determinants of interregional commodity flows is critical for both transportation infrastructure planning (highways, railroad tracks, river/port facilities) and regional development policies (location of activities, reducing regional ...
Celik, H. Murat, Guldmann, Jean-Michel
core  

The Impact of Livestock on the Spatiotemporal Activity of Ungulates in Western Sichuan, China

open access: yesDiversity
Grazing is a widespread land use practice with significant implications for biodiversity and ecosystem functioning. Wild ungulates, as key components of terrestrial ecosystems, play a vital role in maintaining ecosystem health.
Jingyi Liu   +5 more
doaj   +1 more source

Commuting and Panel Spatial Interaction Models: Evidence of Variation of the Distance-Effect over Time and Space [PDF]

open access: yes
We apply spatial interaction models using panel data to explain commuting behaviour in the Netherlands. Our main conclusion is that the distance-decay effect is not constant over time and that changes in this effect are region specific.
Jos Van Ommeren, Wouter Vermeulen
core  

Pairwise interaction point processes for modelling bivariate spatial point patterns in the presence of interaction uncertainty [PDF]

open access: yes, 2015
Current ecological research seeks to understand the mechanisms that sustain biodiversity and allow a large number of species to coexist. Coexistence concerns inter-individual interactions. Consequently, there is an interest in identifying and quantifying
Illian, Janine Baerbel   +2 more
core   +1 more source

Traffic–Tourism Spatial Interaction of Lai-Qu Expressway Based on the Traffic Flow Data

open access: yesLand
In the Taihang Mountain Tourism Development Plan (2020–2035), the Taihang Mountain Expressway is included in the construction of the National Tourism Scenic Road around Taihang Mountain to promote the integrated development of regional transportation and
Yujian Gao   +7 more
doaj   +1 more source

Does economic geography matter for Pakistan? a spatial exploratory analysis of income and education inequalities [PDF]

open access: yes
Generally, econometric studies on socio-economic inequalities consider regions as independent entities, ignoring the likely possibility of spatial interaction between them. This interaction may cause spatial dependency or clustering, which is referred to
Ahmed, Sofia
core   +1 more source

Investigating the spatial interaction of immune cells in colon cancer. [PDF]

open access: yesiScience, 2023
Mohammad Mirzaei N, Hao W, Shahriyari L.
europepmc   +1 more source

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