Results 281 to 290 of about 2,949,481 (364)

Empirical study of particle swarm optimization inspired by Lotka–Volterra model in Ecology

open access: closedSoft Computing, 2018
Particle swarm optimization (PSO) has been proved to be an effective technique in solving complex global optimization problems. Many modified versions of the original PSO algorithm emerged during the last 15 years. Many of those existing methods employ all particles in a single population which adopts the similar monotonic strategy.
Xianxiang Wu   +4 more
semanticscholar   +4 more sources

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

open access: closedJournal of Theoretical Biology, 2014
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 Daniel Ackerman
semanticscholar   +5 more sources

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

open access: closed2008 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
semanticscholar   +4 more sources

Deriving reaction?diffusion models in ecology from interacting particle systems

open access: closedJournal 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.
Robert Stephen Cantrell, Chris Cosner
semanticscholar   +5 more sources

Scales of Population Dynamics, Ecology and Diversity of Planktonic Foraminifera and their Relationship to Particle Flux in the Eastern Tropical Atlantic: Cruise No. M140, 11.8.2017-5.9.2017, Mindelo (Cabo Verde)-Las Palmas (Spain) - FORAMFLUX

open access: closed, 2019
Cruise M140 combined sampling of plankton, mineral dust and other particles in the water column with recovery of data and samples from long-term observational platforms (sediment traps and dust-collecting buoys).
Michal Kučera   +28 more
openalex   +2 more sources

Water ecology and fractal characteristics of soil particle size distribution of three typical vegetations in Shell Island

open access: closed, 2013
Little information is available about soil particle-size distribution in shell ridge ecosystems. Based on the principle of quality distribution of soil particle size and fractal theory,Periploca sepium Bunge,Ziziphus jujuba var.
Xia Jiangba
semanticscholar   +3 more sources

Particle Size Spectra in Ecology

open access: closed, 1984
The use of size distributions as descriptors of ecosystems goes back at least to Elton (1927), although quantitative applications have appeared only during the past decade. Elton noted that there was a characteristic difference between terrestrial and aquatic ecosystems; on land the organisms in the lower trophic levels tend to be larger than the ...
William Silvert
openalex   +3 more sources

Exploitation of Particle Migration Mechanism to Promote Economy and Ecology in Concrete Technology

open access: closedKey Engineering Materials, 2006
The computer simulation study of Portland cement blending confirmed the major mechanism to be size segregation in the Interfacial Transition Zones around the aggregate particles. Fine particles tend to move through the skeleton of larger particles towards the surface of the aggregate grains, improving local density.
Piet Stroeven   +2 more
  +5 more sources

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