Results 11 to 20 of about 8,727 (250)

An Improved Mayfly Optimization Algorithm Based on Median Position and Its Application in the Optimization of PID Parameters of Hydro-Turbine Governor

open access: yesIEEE Access, 2022
Mayfly algorithm is a new intelligent optimization algorithm with unique optimization capabilities recently proposed. It has strong research value, but there are also insufficient explorations, and it is easy to fall into the problem of local ...
Guo Lei   +3 more
doaj   +2 more sources

The role of hydro‐environmental factors in Mayfly (Ephemeroptera, Insecta) community structure: Identifying threshold responses

open access: yesEcology and Evolution, 2020
Freshwater organisms are threatened by changes in stream flow and water temperature regimes due to global climate change and anthropogenic activities. Threats include the disappearance of narrow‐tolerance species and loss of favorable thermal conditions ...
Pfananani A. Ramulifho   +2 more
doaj   +2 more sources

Mayfly response to different stress types in small and mid-sized lowland rivers [PDF]

open access: yesZooKeys, 2020
Freshwater ecosystems are endangered worldwide by various human pressures, resulting in dramatic habitat and species loss. Many aquatic invertebrates respond to disturbances in their habitat, and mayflies are among the most sensitive ones.
Marina Vilenica   +3 more
doaj   +4 more sources

The improved mayfly optimization algorithm [PDF]

open access: yesJournal of Physics: Conference Series, 2020
Abstract The mayfly optimization (MO) algorithm was proposed with a better hybridization of the particle swarm optimization (PSO) and the differential evolution (DE) algorithms. The velocity would be relevant to the Cartesian distance among the relevant individuals. In this paper, a reasonable revision for the velocity updating equations
Su-Ruo Li   +3 more
openaire   +2 more sources

The mayfly nymph Austrophlebioides pusillus Harker defies common osmoregulatory assumptions [PDF]

open access: yesRoyal Society Open Science, 2017
Osmoregulation is a key physiological function, critical for homeostasis. The basic physiological mechanisms of osmoregulation are thought to be well established.
Renee Dowse   +4 more
doaj   +2 more sources

Mayflies (Insecta: Ephemeroptera) from Venezuela [PDF]

open access: greenCheck List, 2009
A list of the known mayfly (Ephemeroptera) fauna of Venezuela is given, along with the states and bioregions from which each species is known. Depositions of the type specimens of each species are also listed.
M. L. Pescador   +3 more
openalex   +5 more sources

Microhabitat selection and distribution of functional feeding groups of mayfly larvae (Ephemeroptera) in lotic karst habitats

open access: yesKnowledge and Management of Aquatic Ecosystems, 2018
Research examining mayfly ecology in karst streams and rivers has increased in recent years, though microhabitat preferences remain poorly characterized.
Vilenica Marina   +3 more
doaj   +2 more sources

Effect of land use on mayfly assemblages structure in Neotropical headwater streams [PDF]

open access: diamondAnais da Academia Brasileira de Ciências, 2014
The aim of this study was to test the effect of agricultural and forestry land use on the structure of mayfly assemblages in low-order streams. Twenty-nine headwater streams were investigated in the state of São Paulo.
ANA EMILIA SIEGLOCH   +3 more
doaj   +2 more sources

The negative mayfly optimization algorithm

open access: yesJournal of Physics: Conference Series, 2020
Abstract The global best or historical best positions were involved in updating positions of individuals in swarms for almost all of the swarm-based nature-inspired algorithms with exceptions for the averages. However, literal research to the particle swarm optimization (PSO) algorithm had proved that the all of the candidates would also
Juan Zhao, Zheng-Ming Gao
openaire   +3 more sources

Permian mayfly nymphs [PDF]

open access: hybridPsyche: A Journal of Entomology, 1968
Jarmila Kukalová
openalex   +3 more sources

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