Results 61 to 70 of about 24,098 (229)

Scaling of soaring seabirds and its implication for the maximum size of flying pterosaurs [PDF]

, 2008
The flight ability of animals is restricted by the scaling effects imposed by physical and physiological factors. In comparisons of the power available from muscle and the mechanical power required to fly, theoretical studies have predicted that the ...
Akinori Takahashi, Charles-Andre Bost, Henri Weimerskirch, Katsufumi Sato, Kentaro Q. Sakamoto, Nobuhiro Katsumata, Yutaka Watanuki   +6 more
core   +1 more source

Flight Mechanics and Control of Escape Manoeuvres in Hummingbirds. II. Aerodynamic Force Production, Flight Control and Performance Limitations [PDF]

, 2016
The superior manoeuvrability of hummingbirds emerges from complex interactions of specialized neural and physiological processes with the unique flight dynamics of flapping wings.
Cheng, Bo, Chiu, George T.C., Deng, Xinyan, Hedrick, Tyson L, Powers, Donald R, Tobalske, Bret W, Wang, Yi, Wethington, Susan M   +7 more
core   +3 more sources

High‐Speed Altitude Regulation With Neuromorphic Camera and Lightweight Embedded Computation

Advanced Intelligent Systems, EarlyView.
Neuromorphic cameras deliver rapid, high‐dynamic‐range sensing but overwhelm embedded processors at high speeds. This work presents a lightweight, optimized Lucas–Kanade optical flow method with parallelization, gyroscopic derotation, and adaptive event slicing.
Simon L. Jeger, Alessandro Marchei, Charbel Toumieh, Dario Floreano   +3 more
wiley   +1 more source

Design and Construction of an Experiment for the Investigation of the Effects of Gust on Flapping Wing Micro Air Vehicle Power Consumption [PDF]

, 2013
In recent years, the promising nature of flapping wing flight has led researchers to investigate the wing morphology and unsteady wing aerodynamics found in insects to aid in the design of modern micro air vehicles (MAVs).
Hiller, Brett
core   +1 more source

How wing compliance drives the efficiency of self-propelled flapping flyers

, 2010
Wing flexibility governs the flying performance of flapping wing flyers. Here, we use a self-propelled flapping-wing model mounted on a ``merry go round'' to investigate the effect of wing compliance on the propulsive efficiency of the system.
Godoy-Diana, Ramiro, Thiria, Benjamin
core   +1 more source

Towards a Semantic Search Engine for Scientific Articles [PDF]

, 2017
Because of the data deluge in scientific publication, finding relevant information is getting harder and harder for researchers and readers. Building an enhanced scientific search engine by taking semantic relations into account poses a great challenge ...
Forestier, Germain, Hassenforder, Michel, Latard, Bastien, Weber, Jonathan   +3 more
core   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Flight Mechanics and Control of Escape Manoeuvres in Hummingbirds. I. Flight Kinematics [PDF]

, 2016
Hummingbirds are nature’s masters of aerobatic manoeuvres. Previous research shows that hummingbirds and insects converged evolutionarily upon similar aerodynamic mechanisms and kinematics in hovering.
Cheng, Bo, Chiu, George T.C., Deng, Xinyan, Hedrick, Tyson L, Powers, Donald R, Tobalske, Bret W, Wethington, Susan M   +6 more
core   +3 more sources

The Spectrum of Abnormal Tongue Movements: Review of Phenomenology, Etiology, and Differential Diagnosis

Movement Disorders Clinical Practice, EarlyView.
ABSTRACT Background Classifying abnormal tongue movements is challenging due to their varied presentations and limited visibility compared to other body parts. Accurate identification of the phenomenology guides physical examination and can point to specific diagnoses.
Nathaniel Bendahan, Seyed‐Mohammad Fereshtehnejad, Christos Ganos, Emily Swinkin, Anthony E. Lang   +4 more
wiley   +1 more source

Dynamic Modeling and Flight Performance Analysis for Large Bionic Ornithopters Considering Structural Flexibility

Nanjing Hangkong Hangtian Daxue Xuebao
The flapping wing of large bionic ornithopters （LBOs） has obvious flexible deformation during the flapping motion， which is difficult for aerodynamic analysis.
XU Hui, PAN Erzhen, XU Wenfu, HUANG Hailin   +3 more
doaj   +1 more source