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Advanced Search Results For "SPATIAL variation"

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 "SPATIAL variation"
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Exploring the Spatial Variation of Access/Egress Distances of Subway Stations Using Mobile Phone Positioning Data in Chengdu, China.

Publication Type: Academic Journal

Source(s): Journal of Advanced Transportation. 2/28/2023, p1-17. 17p.

Abstract: The distance from the origin or destination to or from the subway station is defined as the access or egress distance, which determines the service coverage of the subway station. However, little literature studies the distances at the station level, a...


Publication Type: Academic Journal

Source(s): Applied Ecology & Environmental Research. 2022, Vol. 20 Issue 6, p4667-4679. 13p.

Abstract: In the present study data obtained during the monitoring of the Marchica lagoon (NEMorocco, Mediterranean) was analyzed, and the trophic index (TRIX) was calculated. The spatiotemporal pattern of TRIX in water from thirteen stations in the Marchica lag...

Spatial and seasonal variation of benthic fish assemblages in whitewater rivers of Central Amazon.

Publication Type: Academic Journal

Source(s): Biota Neotropica (Edicao em Iingles). 2022, Vol. 22 Issue 4, p1-9. 10p.

Abstract: Apesar do elevado número de espécies de peixes descritas para a região amazônica, a ictiofauna que habita as profundezas dos principais canais de grandes rios tropicais é uma das menos conhecidas. Para conhecer os padrões de diversidade desses peixes n...


Publication Type: Academic Journal

Source(s): African Crop Science Journal. 2022, Vol. 30 Issue 4, p539-545. 7p.

Abstract: L'azote (N) joue un rôle important dans le sol et la vie humaine et sa connaissance est essentielle dans la gestion de la fertilité des sols. L'étude a permis d'analyser la structure spatiale de la teneur en azote au Bénin en utilisant l'approche du Ba...

Optimization of Land Use Regression Modelling of PM2.5 Spatial Variations in Different Seasons across China.

Publication Type: Academic Journal

Source(s): Journal of Sensors. 9/28/2022, p1-9. 9p.

Abstract: Fine particulate matter (PM2.5), one of the main components of haze, is of wide concern for its potential negative health effects. In order to further improve ambient air quality, it is essential to conclude the spatial variability of pollutants by inv...

Modeling of spatial permittivity variations using Karhunen–Loève expansion for stochastic electromagnetic problems.

Publication Type: Academic Journal

Source(s): International Journal of RF & Microwave Computer-Aided Engineering. Sep2022, Vol. 32 Issue 9, p1-11. 11p.

Abstract: Fabrication tolerance often causes spatial variations in material properties in electromagnetic systems. In this paper, these spatial variations are modeled using Karhunen–Loéve expansion, which is truncated for a finite dimensional representation. Unc...

Prairie dogs, cattle subsidies and alternative prey: seasonal and spatial variation in coyote diet in a temperate grassland.

Publication Type: Academic Journal

Source(s): Wildlife Biology. Sep2022, Vol. 2022 Issue 5, p1-14. 14p.

Abstract: As the dominant predator on North America's grasslands, coyotes Canis latrans have a large influence on biodiversity, both on working ranches and in protected parks. Ground squirrel (sciurid) species and livestock carrion are often abundant on grasslan...

Abundance and distribution of ruffed grouse Bonasa umbellus at the southern periphery of the range.

Publication Type: Academic Journal

Source(s): Wildlife Biology. Sep2022, Vol. 2022 Issue 5, p1-11. 11p.

Abstract: Peripheral populations of ruffed grouse Bonasa umbellus at the trailing edge of their range are likely to be at risk of population declines and potential extirpation from continued climate and habitat change. Accurate estimates of abundance and distrib...

Transmission-based charge modulation microscopy on conjugated polymer blend field-effect transistors.

Publication Type: Academic Journal

Source(s): Journal of Chemical Physics; 1/21/2023, Vol. 158 Issue 3, p1-8, 8p

Abstract: Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users m...

Spatial and Temporal Variations in the Ecological Vulnerability of Northern China.

Publication Type: Academic Journal

Source(s): Journal of Sensors. 8/8/2022, p1-10. 10p.

Abstract: Ecological vulnerability is the focus of research on global environmental impact, regional sustainable development, ecological civilization, and green development. There are eight deserts and four sandy lands in northern China. The ecological environme...