Results 131 to 140 of about 1,141,804 (335)
Advanced Intelligent Systems, EarlyView.Strain gauges are attached to biomimetic flapping wings to investigate how wing strain sensors detect wind directions. A convolutional neural network model for wind direction classification is developed through experiments. The results reveal that wind classification is possible with strain data of only 0.2 flapping cycles, and the use of biomimetic ...
Kenta Kubota, Hiroto Tanaka
wiley +1 more source
Filtering technique based on high-frequency plant modeling for high-gain control [PDF]
, 1979 This invention was an improvement in aircraft control systems that utilized feedback motion sensors to generate a signal to control the aircraft. The improvement consisted essentially of a complementary filter comprising a simplified model of the ...
Garren, J. F., Jr., Niessen, F. R.
core +1 more source
Spring and Power in Hovering Ornithopters
Advanced Intelligent Systems, EarlyView.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
CFD predictions of near-field pressure signatures of a low-boom aircraft [PDF]
, 1992 A three dimensional Euler marching code has been utilized to predict near-field pressure signatures of an aircraft with low boom characteristics. Computations were extended to approximately six body lengths aft of the aircraft in order to obtain pressure
Baize, Daniel G., Fouladi, Kamran
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A TECHNIQUE FOR MEASURING PRECIPITATION PARTICLES FROM AIRCRAFT [PDF]
, 1958 Edward N. Brown
openalex +1 more source
PairTilt: Design and Control of an Active Tilt‐Rotor Quadcopter for Improved Efficiency and Agility
Advanced Intelligent Systems, EarlyView.PairTilt is an actuated tilt‐rotor unmanned aerial vehicle capable of active shape reconfiguration, balancing simplicity, efficiency, and agility. Its H‐shaped frame incorporates pairwise tiltable rotors, which reduce gyroscopic torque and decouple key dynamics, enhancing maneuverability and reducing drag.
Jerry Tang, Mark W. Mueller
wiley +1 more source
Charting the landscape of the environmental exposome
iMeta, Volume 1, Issue 4, December 2022., 2022 We describe the biological and chemical components of the environmental exposomes in three major environmental matrices that are highly relevant to human and social‐economical health—air, soil, and water. We discuss how different exposome components can interact with each other. Finally, we propose a list of outstanding challenges to be tackled to push
Xin Wei +6 more
wiley +1 more source
Low speed propellers: Impact of advanced technologies [PDF]
, 1980 Sensitivity studies performed to evaluate the potential of several advanced technological elements on propeller performance, noise, weight, and cost for general aviation aircraft are discussed.
Keiter, I. D.
core +1 more source
Design of Instruments for Navigation of Aircraft: Discussion [PDF]
, 1920 L. F. Blandy +4 more
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Advanced Intelligent Systems, EarlyView.This study introduces a novel method for labeling real‐world color and infrared images using a synthetically trained system. Applied to flight test imagery, the new labels enhance object detection. The method works without expensive truth systems or camera calibration, enabling predictions on past datasets and addressing the need for high‐quality ...
Jeffrey Choate +6 more
wiley +1 more source