Results 51 to 60 of about 3,094 (268)

Diet of three juvenile fish species of the coastal zone of a Southwest Atlantic beach, Brazil

open access: yesActa Scientiarum: Biological Sciences, 2022
Surf zones are associated with a shelter area, nursery and feeding for several species of fish. In this study, the dietary habits of three species of fish with demersal habits (Gulf kingcroaker Menticirrhu gracilis, Whitesea catfish Genidens barbus and ...
jessica Knoeller   +2 more
doaj   +1 more source

Surf-zone Kinematics

open access: yesANZIAM Journal, 2017
A new method is described for making field measurements of broken surf fronts (turbulent bores) on coastal beaches. The position of a Garmin watch attached to a bodyboarder riding the surf front is recorded every second. The results of a large number of experiments on various beaches indicate that the surf fronts are uniformly retarded.
Neville John De Mestre, Gary McCoy
openaire   +2 more sources

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

Nonlinear wave energy modelling in the surf zone [PDF]

open access: yesNonlinear Processes in Geophysics, 1996
Breaking wave energy in the surf zone is modelled through the incorporation of the time dependent energy balance equation in a non linear dispersive wave propagation model.
Th. V. Karambas
doaj  

eDNA captures depth partitioning in a kelp forest ecosystem.

open access: yesPLoS ONE, 2021
Environmental DNA (eDNA) metabarcoding is an increasingly important tool for surveying biodiversity in marine ecosystems. However, the scale of temporal and spatial variability in eDNA signatures, and how this variation may impact eDNA-based marine ...
Keira Monuki   +2 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Abrasion and algal fouling of coarse material on the Murman littoral [PDF]

open access: yesVestnik MGTU, 2017
On the Murmansk coast of the Barents Sea the boulder littoral zone is widely spread mostly covered by Fucus communities. This is one of the most productive benthic communities of the Barents Sea.
Malavenda S. V.   +2 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Occurrence of Larvae and Juveniles of Eucinostomus argenteus, Eucinostomus gula, Menticirrhus americanus, Menticirrhus littoralis, Umbrina coroides and Micropogonias furnieri at Pontal do Sul beach, Paraná

open access: yesBrazilian Archives of Biology and Technology, 2001
Despite its importance, most ichthyoplankton studies in the South-Southeastern coast of Brazil, have been accomplished on the continental shelf. Regarding the beach environment, recognized as a nursery, little is known about the ichthyoplankton.
Rodrigo Santiago Godefroid   +3 more
doaj   +1 more source

SURF ZONE RESONANCE AND COUPLED MORPHOLOGY

open access: yesCoastal Engineering Proceedings, 1978
The edge wave hypothesis for periodic inshore morphology and circulation is tested for five beaches and is supported by resulting wave-current spectral and cross-spectral data. Beach types range from a reflective, narrow surf zone, case through various dissipative medium to high energy beaches including some with inshore bar-trough morphology and one ...
John Chappell, Lynn Donelson Wright
openaire   +2 more sources

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