Results 251 to 260 of about 26,782 (299)

Particle motion: the missing link in underwater acoustic ecology [PDF]

open access: yesMethods in Ecology and Evolution, 2016
Summary Sound waves in water have both a pressure and a particle‐motion component, yet few studies of underwater acoustic ecology have measured the particle‐motion component of sound. While mammal hearing is based on detection of sound pressure, fish and invertebrates (i.e. most aquatic animals) primarily sense sound using particle motion.
Sophie L Nedelec   +2 more
exaly   +8 more sources

Interplay between particle size and microbial ecology in the gut microbiome

open access: yesISME Journal
Abstract Physical particles can serve as critical abiotic factors that structure the ecology of microbial communities. For non-human vertebrate gut microbiomes, fecal particle size (FPS) has been known to be shaped by chewing efficiency and diet. However, little is known about what drives FPS in the human gut. Here, we analyzed FPS by
Sharon Jiang   +2 more
exaly   +5 more sources
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The importance of fine particle technology in the world's ecology

Powder Technology, 1973
Abstract Fine particle technology has much to offer in controlling the world's ecology. Better and cheap instrumentation for sampling of particulates needs to be developed. The collection efficiencies of existing particle removal systems must be improved and novel methods to remove more than one pollutant in a system must be invented.
exaly   +2 more sources

Particle Swarm Optimization inspired by r- and K-Selection in ecology

2008 IEEE Congress on Evolutionary Computation (IEEE World Congress on Computational Intelligence), 2008
An optimization technique named r/KPSO (particle swarm optimization with r- and K-selection) was developed in this paper. In Ecology, two evolutionary ldquostrategiesrdquo are termed, r-selection for those species that breed many ldquocheaprdquo offspring and live in unstable environments and K-selection for those species that produce few ...
Yunyi Yan, Baolong Guo
exaly   +2 more sources

Chemical characteristics analysis of automobile exhaust particles and the method for evaluating its ecological effect

Chemosphere, 2022
Automobile exhaust has become the main source of atmospheric particulate matter with the increase in the number of automobiles. Automobile exhaust particles (AEPs) discharged into the atmosphere can enter the aquatic environment through atmospheric deposition, rain runoff, leaching, drainage water and urban sewage and further affect aquatic organisms ...
Liang, Cui   +5 more
openaire   +2 more sources

Adding ecology to particle capture models: Numerical simulations of capture on a moving cylinder in crossflow

Journal of Theoretical Biology, 2015
The particle capture efficiency, η, of systems that remove suspended particles from ambient flow (e.g. suspension feeding, abiotic pollination) has been studied using static collectors in steady flows. Particle deposition on collectors moving due to fluid flow remains largely unknown, despite its ecological relevance.
Julian Krick, Josef D Ackerman
exaly   +3 more sources

Deriving reaction?diffusion models in ecology from interacting particle systems

Journal of Mathematical Biology, 2004
We use a scaling procedure based on averaging Poisson distributed random variables to derive population level models from local models of interactions between individuals. The procedure is suggested by using the idea of hydrodynamic limits to derive reaction-diffusion models for population interactions from interacting particle systems.
Cantrell, R. S., Cosner, C.
openaire   +2 more sources

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