Results 91 to 100 of about 918 (214)

Learning from bat: Aerodynamics of actively morphing wing

Theoretical and Applied Mechanics Letters, 2015
Different from birds and insects, bats have complex wing-deformation capacity to generate high aerodynamic forces. In flight, the actively morphing of bat wing includes the twisting from wing root to wing tip, the cambering along the chordwise direction,
Yongliang Yu, Ziwu Guan
doaj   +1 more source

Multiaxial Deformations of Elastomeric Skins for Morphing Wing Applications: Theoretical Modeling and Experimental Investigations. [PDF]

Polymers (Basel), 2022
Ahmad D, Kumar D, Ajaj RM.
europepmc   +1 more source

Morphing wing optimization for steady level flight

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2016
This paper presents the basic results of the morphing wing planform optimization of an experimental unmanned air vehicle for minimum drag at steady level flight. The aerodynamic design tool that consists of the three-dimensional panel method, two-dimensional boundary layer solution and generalized reduced gradient method-based optimization is ...
Korpe, Durmus S., Ozgen, Serkan
openaire   +2 more sources

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Aerodynamic Shape Design and Validation of an Advanced High-Lift Device for a Regional Aircraft with Morphing Droop Nose

International Journal of Aerospace Engineering, 2019
In the present work, the aerodynamic shape design of an advanced high-lift system for a natural laminar flow (NLF) wing, based on the combination of a morphing droop nose and a single slot trailing edge flap, is presented.
Alessandro De Gaspari, Frédéric Moens
doaj   +1 more source

Evaluating machine learning models for multi‐species wildlife detection and identification on remote sensed nadir imagery in South African savanna

Wildlife Biology, EarlyView.
This research paper investigates the efficacy of leading machine learning (ML) models for detecting and identifying ungulate species in African savanna using nadir imagery from unmanned aerial vehicles (UAVs). Traditional aerial counting methods, while widely used, suffer from significant limitations in accuracy and precision, in part due to human ...
Paul Allin, Fadel Seydou, Radloff Frans, Andrew Davies, Alison Leslie   +4 more
wiley   +1 more source

Repeated trends in altitudinal gradients of diversity: How habitat filtering and biotic interactions structure ecological communities

Journal of Animal Ecology, EarlyView.
This study reveals that tropical butterfly communities show remarkably consistent elevational patterns of diversity and phylogenetic structure across regions with contrasting evolutionary histories, demonstrating how regional species pools and local ecological factors jointly shape biodiversity along altitudinal gradients.
Raphaël Fougeray, Arlety Roy, Christelle Penager, Guillaume Correa Pimpao, Ronald Mori Pezo, Léo‐Paul Charlet, Nino Page, Ombeline Sculfort, Stéphanie Gallusser, Marianne Elias, Melanie McClure   +10 more
wiley   +1 more source

Bioinspired Design, Fabrication, and Wing Morphing of 3D‐Printed Magnetic Butterflies

Advanced Intelligent Systems
Monarch butterflies’ remarkable migratory abilities, facilitated by their efficient wing structures, inspire the development of bioinspired soft robots and microaerial vehicles.
Muhammad Bilal Khan, Kilian Schäfer, Florian Hofmann, Matthias Lutzi, Eduardo Sergio Oliveros‐Mata, Oleksandr Pylypovskyi, Denys Makarov, Oliver Gutfleisch   +7 more
doaj   +1 more source

Hierarchical Honeycomb-Structured Electret/Triboelectric Nanogenerator for Biomechanical and Morphing Wing Energy Harvesting. [PDF]

Nanomicro Lett, 2021
Tao K, Chen Z, Yi H, Zhang R, Shen Q, Wu J, Tang L, Fan K, Fu Y, Miao J, Yuan W.   +10 more
europepmc   +1 more source

Amidst (waste) abundance: world‐making and struggles in hosting a municipal landfill in the Bolivian lowlands Au milieu de l'abondance (de déchets) : fabrication du monde et luttes liées à la gestion d'une décharge municipale dans les basses terres de Bolivie

Journal of the Royal Anthropological Institute, EarlyView.
In recent decades, solid waste has proliferated worldwide, becoming a pressing global issue. This article explores the role of Indigenous people dwelling within and upon emerging waste scenarios, with a specific focus on involved forms of sociality and ontological contestation. Drawing on the case of a municipal landfill sited on a Guarani community in
Vanesa Martín Galán
wiley   +1 more source