Recent Advances in Natural Fiber Reinforced Metal/Cement/Polymer Composites: An Overview of the Structure-Property Relationship for Engineering Applications.

Hybrid Advances, Год журнала: 2025, Номер unknown, С. 100378 - 100378

Опубликована: Янв. 1, 2025

Язык: Английский

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Review of respiratory anatomy adaptations in whales

The Anatomical Record, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Whales (cetaceans, including dolphins and porpoises) are superbly adapted to life in water, but retain vestiges of their terrestrial ancestry, particularly the need breathe air. Their respiratory tract exhibits many differences from closest relatives, artiodactyls (even toed ungulates). In this review, we describe anatomy cetacean adaptions. These include protective features (e.g., preventing water incursions during breathing or swallowing, mitigating effects pressure changes diving/ascent) unique functions underwater sound production, regulating gas exchange dive cycle).

Язык: Английский

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Characteristics of productivity for the Academy Bay (Okhotsk Sea)

Izvestiya TINRO, Год журнала: 2025, Номер 205(1), С. 91 - 110

Опубликована: Апрель 4, 2025

The data on parameters of biological productivity measured in the Academy Bay September 2020, as chlorophyll a concentration euphotic layer, primary production, phytoplankton and zooplankton biomass, results echo sounding at 200 kHz are presented. production estimated by Zvalinsky model varied from 300 to 6050 mgC per m 2 day. Diatoms with biomass 660–1220 mg/m 3 dominated phytoplankton, whereas Copepoda ranged 18 478 was dominant group. A discrepancy is noted between net thickness sound diffusion layer. more productive area highest found northern enriched nutrients transferred there Okhotsk Sea due patterns estuarine circulation, but thickest sound-diffusing layer observed southern central parts bay where it presumably formed shoals juvenile fish rather than copepod aggregations. feeding grounds bowhead whales were located Bay, too. This spatial misalignment highly explained hypothesis that may be important prey for whales, addition zooplankton.

Язык: Английский

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Suffused: baleen fringe mat porosity and hydrodynamics in balaenid and balaenopterid whales

Biological Journal of the Linnean Society, Год журнала: 2024, Номер unknown

Опубликована: Апрель 18, 2024

Abstract Baleen plates of filter-feeding whales are longitudinally fibrous, separating where eroded medially into mats fringes due to friction from water, prey, and the tongue. The end up spreading-out, in other words suffusing, over comb-like structure baleen assemblage. This study examined relationships between mat morphology hydrodynamics it generates. Samples collected nine rack locations on a bowhead whale (Balaena mysticetus) fin (Balaenoptera physalus) were investigated with new technique porosity determination flume setting. Porosity was measured range 5–20% 8–37% samples respectively. These largest ventrally both species, while remaining somewhat insensitive flume’s water speed. A hydrodynamical model through-mat currents used estimate speeds 0.15–3.0 cm/s permeabilities order 10−13 m2, depending applied pressure. Finally, relative near entrance mouth, these trends quantitatively similar species. With tongue- flow-based erosion as main mechanism for creation all extant mysticetes, our analysis suggests baleen-generated filtration having emerged early their evolution.

Язык: Английский

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Rapid flow field prediction in patterned baleen membranes of balaenid whales during filter feeding by deep learning

Physics of Fluids, Год журнала: 2024, Номер 36(8)

Опубликована: Авг. 1, 2024

Filter membranes are the core components of solid–liquid separation equipment, and their control over particulate pollutants directly determines effective operation system. The feeding balaenid whales, acting as an “oral filter,” provides new technical ideas for design traditional filter membranes. This study proposes a 3-input, 9-output UNet deep learning framework applies it to rapid flow field prediction in patterned baleen whales during feeding, named UNet-BaleenCFD. datasets obtained through computational fluid dynamics (CFD) simulations combined with linear interpolation, model is validated effectiveness against revised theoretical model. To account differences units magnitudes velocity pressure, dimensionless pressure values calculated loss function. Compared CFD, UNet-BaleenCFD can accelerate by three orders magnitude. Additionally, predictions made good agreement results from indicating that promising method predicting fields channels. provide guidance development

Язык: Английский

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Optimal Design of a PIDD² Controller for an AVR System Using Hybrid Whale Optimization Algorithm

IEEE Access, Год журнала: 2024, Номер 12, С. 128525 - 128540

Опубликована: Янв. 1, 2024

Язык: Английский

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Sustainable Microplastic Filter Development for River Conservation: A Case Study in Yogyakarta

2022 International Conference on Decision Aid Sciences and Applications (DASA), Год журнала: 2024, Номер unknown, С. 1 - 5

Опубликована: Дек. 11, 2024

Язык: Английский

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