Results 91 to 100 of about 9,281 (235)
Bio-Inspired Flexible Flapping Wings with Elastic Deformation
Aerospace, 2017 Over the last decades, there has been great interest in understanding the aerodynamics of flapping flight and development of flapping wing Micro Air Vehicles (FWMAVs).
Tien Van Truong +2 more
doaj +1 more source
Development of 4D printing and its performance testing methods
Responsive Materials, EarlyView.This paper reviews the molding methods of 4D printing and its applications in various fields, with emphasis on 4D printing performance testing methods. Abstract 4D printing is a cutting‐edge additive manufacturing technology that introduces the time dimension, allowing printed objects to have dynamic, changeable properties, functions or shapes ...
Guiwei Li +8 more
wiley +1 more source
Surface Tension dominates Insect Flight on Fluid Interfaces
, 2016 Flight on the two-dimensional air-water interface, with body weight supported by surface tension, is a unique locomotion strategy well adapted for the environmental niche on the surface of water.
Bardon, Thibaut C +3 more
core +1 more source
Big Bird: A global dataset of birds in drone imagery annotated to species level
Remote Sensing in Ecology and Conservation, EarlyView.Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson +19 more
wiley +1 more source
On unidirectional flight of a free flapping wing
, 2006 International audienceWe study the dynamics of a rigid, symmetric wing that is flapped vertically in a fluid. The motion of the wing in the horizontal direction is not constrained.
Childress, Stephen +2 more
core +4 more sources
SmartBot, EarlyView.Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao +5 more
wiley +1 more source
Artificial evolution of the morphology and kinematics in a flapping-wing mini ...
E De Margerie +3 more
core
Smart Molecules, EarlyView.A versatile 4D printed approach was developed to fabricate complex and refined photomechanical actuators using crystalline materials, including molecular crystals and covalent organic frameworks. The prepared smart actuators exhibited outstanding photomechanical and photovoltaic performance.
Yujie Liu +8 more
wiley +1 more source
Identification of Missing Knowledge in MBSE System Models Using Graph‐Based Machine Learning
Systems Engineering, EarlyView.ABSTRACT The design and development of complex aerospace systems pose significant challenges due to their growing complexity. Iterative design processes, guided by formal specifications, strive to refine initially vague characteristics through multiple stages.
Esma Karagoz +2 more
wiley +1 more source
Efficiency of lift production in flapping and gliding flight of swifts.
PLoS ONE, 2014 Many flying animals use both flapping and gliding flight as part of their routine behaviour. These two kinematic patterns impose conflicting requirements on wing design for aerodynamic efficiency and, in the absence of extreme morphing, wings cannot be ...
Per Henningsson +2 more
doaj +1 more source