Results 61 to 70 of about 107,600 (223)
A stretchable, slippery triboelectric nanogenerator (SS‐TENG) is presented for efficient droplet energy harvesting. A novel phase separation method is created to prepare a durable, flexible triboelectric layer with skeleton‐embedded, dispersed lubricant particles.
Changjun Yang+7 more
wiley +1 more source
Astronautics & Astronomy - a Profitable Partnership
The connection between Astronautics and Astronomy is naturally straight forward. Astronomy is one of the oldest scientific areas along the human development, thousands of years.
Othon Cabo Winter
doaj
There is currently a lack of efficient heat transfer analysis methodologies for spiral channel regenerative cooling that has been increasingly applied in liquid rocket engines.
Junjie Lv+3 more
doaj +1 more source
Extension-twist coupled laminates for aero-elastic compliant blade design [PDF]
A definite list of laminate configurations with extension-twisting (and shearing-bending) coupling is derived for up to 21 plies of identical thickness.
York, C.B.
core +1 more source
Decoupling bending modes in magneto–mechano–electric energy harvesters, featuring two bending modes responding to different excitations with identical resonant frequencies, enables effective harvesting stray magnetic field energy in diverse environments.
Wei Peng+7 more
wiley +1 more source
Fault Detection and Isolation for Redundant Inertial Measurement Unit under Quantization
Fault detection and isolation with redundant strapdown inertial measurement unit is critical for ensuring the reliability of the guidance or navigation system in the fields of both aeronautics and astronautics.
Tong Zhang, Fenfen Wang, Wenxing Fu
doaj +1 more source
Wrinkling of Orthotropic Viscoelastic Membranes [PDF]
This paper presents a simplified simulation technique for orthotropic viscoelastic films. Wrinkling is detected by a combined stress-strain criterion and an iterative scheme searches for the wrinkle angle using a pseudo-elastic material stiffness ...
Deng, X., Pellegrino, S.
core +1 more source
Spring and Power in Hovering Ornithopters
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau+4 more
wiley +1 more source
Theoretical analysis of perching and hovering maneuvers [PDF]
Unsteady aerodynamic phenomena are encountered in a large number of modern aerospace and non-aerospace applications. Leading edge vortices (LEVs) are of particular interest because of their large impact on the forces and performance.
Beddoes+15 more
core +1 more source
Gecko‐Inspired Adhesive Grasping from Convex to Flat Surfaces with Contact Sensing
A gecko‐inspired adhesive gripper with a pair of soft hierarchical bio‐toes and a bionic rolling module is designed for adaptive grasping from convex to flat surfaces. Integrated adhesive contact sensing enables the smart grabbing of complex items. The gripper exhibits adaptability, load‐bearing capacity, and potential for applications in industries ...
Liuwei Wang+6 more
wiley +1 more source