Results 151 to 160 of about 121,812 (366)
Flutter stability of twin-box bridge decks [PDF]
arXivThe present paper reports on wind tunnel tests and analyses carried out to investigate the effect of the static angle of attack on the aerodynamic stability of a twin-box bridge deck section. It is found that the critical wind speed for onset of flutter increases with increasing positive static angles (nose-up) and that this effect relates mainly to a ...
arxiv
Multifunction tests of a frequency domain based flutter suppression system [PDF]
The process is described of analysis, design, digital implementation, and subsonic testing of an active control flutter suppression system for a full span, free-to-roll wind tunnel model of an advanced fighter concept.
Adams, William M., Jr. +1 more
core +1 more source
Advanced Intelligent Systems, EarlyView.A tactile sensor array simultaneously integrates super‐resolution and rapid response capabilities to perceive subtle and dynamic stimuli, mimicking the location‐sensing mechanism of human skin. It effectively and swiftly detects and localizes these stimuli, resulting in a localization inference with a root mean square error of 1.50 mm, and can track ...
Shuyao Zhou +9 more
wiley +1 more source
Computer Animation and Virtual Worlds, Volume 33, Issue 6, November/December 2022., 2022 Stereo window violations in 3D rendering occur when virtual objects in front of a physical screen are clipped at the screen borders. Dynparity introduces a real‐time, per‐vertex, nonuniform projection to eliminate this adversary effect. Our user study shows that Dynparity significantly reduces simulator sickness compared to standard stereo rendering on
Christoph Schröder‐Dering +2 more
wiley +1 more source
AerospaceWind tunnel testing is a crucial method for studying aircraft flutter. Using heavy gas as the wind tunnel medium can mitigate the escalating issue of test models being overweight as advanced aircraft develop.
Zhe Hu +5 more
doaj +1 more source
Fast Leaderless Byzantine Total Order Broadcast [PDF]
arXivThis paper presents the Byzantine fault-tolerant agreement protocols Flutter and Blink. Both algorithms are deterministic, leaderless and signature-free; both assume partial synchrony and at least $(5f + 1)$ servers, where $f$ bounds the number of faults.
arxiv
Development of aeroelastic analysis methods for turborotors and propfans, including mistuning [PDF]
The NASA Lewis aeroelastic research program is focused on unstalled and stalled flutter, forced response, and whirl flutter of turborotors and propfans.
Kaza, Krishna Rao V.
core +1 more source
Magnetic Skin for Voice Disorders with Real‐Time Lip Translation
Advanced Intelligent Systems, EarlyView.Soüti, a novel wearable technology combining flexible, biocompatible magnetic skin patches with a convolutional neural network to translate lip movements into speech with 92.54% accuracy. This innovative approach enhances therapeutic options for speech impairments and democratizes access to advanced healthcare technologies, particularly benefiting ...
Montserrat Ramirez‐De Angel +6 more
wiley +1 more source
Catheterization and Cardiovascular Interventions, Volume 100, Issue 7, Page 1159-1170, December 1, 2022., 2022 Abstract Background Clinical factors favouring coronary angiography (CA) selection and variables associated with in‐hospital mortality among patients presenting with out‐of‐hospital cardiac arrest (OHCA) without ST‐segment elevation (STE) remain unclear.
Wayne C. Zheng +15 more
wiley +1 more source
Structural Damping Identification Sensitivity in Flutter Speed Estimation [PDF]
arXivPredicting flutter remains a key challenge in aeroelastic research, with certain models relying on modal parameters, such as natural frequencies and damping ratios. These models are particularly useful in early design stages or for the development of small UAVs (maximum take-off mass below 7 kg).
arxiv