Results 161 to 170 of about 259,706 (309)

Safe Stabilization Using Non‐Smooth Control Lyapunov Barrier Function

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper addresses the challenge of safe stabilization, ensuring the system state reaches the origin while avoiding unsafe state regions. Existing approaches that rely on smooth Lyapunov barrier functions often fail to guarantee a feasible controller. To overcome this limitation, we introduce the non‐smooth control Lyapunov barrier function (
Jianglin Lan, Eldert van Henten, Peter Groot Koerkamp, Congcong Sun   +3 more
wiley   +1 more source

Vision-Based Vehicle State and Behavior Analysis for Aircraft Stand Safety. [PDF]

Sensors (Basel)
Tang K, Zeng L, Zhang T, Zhu D, Liu W, Zhu X.   +5 more
europepmc   +1 more source

Dynamic structural aeroelastic stability testing of the XV-15 tilt rotor research aircraft [PDF]

For the past 20 years, a significant effort has been made to understand and predict the structural aeroelastic stability characteristics of the tilt rotor concept.
Schroers, L. G.
core   +1 more source

Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño, Alejandro Palacio‐Betancur, Piedad Miranda‐Chiquito, Juan David Amaya, Christian E. Silva, Mariantonieta Gutierrez Soto, Luis Felipe Giraldo   +6 more
wiley   +1 more source

A²G-SRNet: An Adaptive Attention-Guided Transformer and Super-Resolution Network for Enhanced Aircraft Detection in Satellite Imagery. [PDF]

Sensors (Basel)
Chen N, Zhang B, He H, Gao K, Liu Z, Li L.   +5 more
europepmc   +1 more source

Challenges and Opportunities for Subsonic Transport X-Plane Acoustic Flight Research [PDF]

Aircraft system noise aspects of experimental aircraft acoustic flight research are analyzed. Experimental aircraft are seen as a key development step toward the introduction of a full scale low noise subsonic transport in the future, especially when ...
Clark, Ian A., Guo, Yueping, June, Jason C., Thomas, Russell H.   +3 more
core   +1 more source

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

Remote Sensing in Ecology and Conservation, EarlyView.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann, Valdemar Palmqvist, Johanna Stedt   +2 more
wiley   +1 more source

Return-to-fly after flow diversion for unruptured paraclinoid aneurysms in military pilots. [PDF]

Front Neurol
Zhang H, Zhang CY, Zhao CC, Zhou Y, Ma YD.   +4 more
europepmc   +1 more source

Fatigue Test of Full Scale Aircraft Structures

Journal of the Society of Mechanical Engineers, 1964
openaire   +2 more sources

Airframe noise: A design and operating problem [PDF]

A critical assessment of the state of the art in airframe noise is presented. Full-scale data on the intensity, spectra, and directivity of this noise source are evaluated in light of the comprehensive theory developed by Ffowcs Williams and Hawkings ...
Hardin, J. C.
core   +1 more source