Results 81 to 90 of about 301,963 (259)

An MIP-heuristic approach for solving multiobjective helicopter flight scheduling in an oil and gas company

EURO Journal on Transportation and Logistics
Oil and gas extraction from offshore platforms usually requires regular helicopter transport to shuttle personnel to these remote sites. Effective organization and scheduling of flights to these maritime units ensure uninterrupted services, enhance ...
Angelo Aliano Filho, Tarley Mansur Fantazzini, Reinaldo Morabito   +2 more
doaj   +1 more source

Evolutionary design of a full–envelope flight control system for an unstable fighter aircraft [PDF]

, 2010
The use of an evolutionary algorithm in the framework of H∞ control theory is being considered as a means for synthesizing controller gains that minimize a weighted combination of the infinite-norm of the sensitivity function (for disturbance attenuation
Avanzini, Giulio, Minisci, Edmondo
core   +1 more source

Quantum Iterative Methods for Solving Differential Equations with Application to Computational Fluid Dynamics

Advanced Quantum Technologies, EarlyView.
Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams, Antonio A. Gentile, Vincent E. Elfving, Daniel Berger, Oleksandr Kyriienko   +4 more
wiley   +1 more source

PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh, Almuatazbellah Boker, Mohammad Al Janaideh   +2 more
wiley   +1 more source

A LTA flight research vehicle [PDF]

, 1975
An Airship Flight Research Program is proposed. Major program objectives are summarized and a Modernized Navy ZPG3W Airship recommended as the flight test vehicle. The origin of the current interest in modern airship vehicles is briefly discussed and the
Nebiker, F. R.
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

Progress of MXenes‐based responsive materials for soft sensors and actuators

Responsive Materials, EarlyView.
MXene, a promising 2D material, excels at mimicking human sensing and feedback system, making it ideal for intelligent robots. This review first covers its structure, properties, and synthesis. It then summarizes recent MXene‐based sensors and actuator.
Peidi Zhou, Wenjie Yang, Yihan Qiu, Meiping Xu, Leiting Liao, Xinlei Gong, Chan Zheng, Minghua You, Cheng Zhang, Huamin Chen, Mingcen Weng   +10 more
wiley   +1 more source

Methodology for ensuring the functional stability of aircraft integrated modular avionics complex

Наука і техніка Повітряних Сил Збройних Сил України
The article presents the methodology of ensuring the functional stability of aircraft avionics complexes under the influence of failure and destabilizing factors. It is based on the procedure of maintaining valid knowledge bases of individual modules of
Г. А. Калашник, М. А. Калашник-Рибалко   +1 more
doaj   +1 more source

A Method for the Study of Human Factors in Aircraft Operations [PDF]

A method for the study of human factors in the aviation environment is described. A conceptual framework is provided within which pilot and other human errors in aircraft operations may be studied with the intent of finding out how, and why, they ...
Barnhart, W., Billings, C., Cooper, G., Gilstrap, R., Lauber, J., Orlady, H., Puskas, B., Stephens, W.   +7 more
core   +1 more source

Fixed-Time Aircraft Spin Recovery Control Based on a Nonsingular Integral Terminal Sliding Mode Approach

Applied Sciences
This paper introduces a control strategy to recover from various spin motions to level trim flight conditions, utilizing a fixed-time nonsingular terminal sliding mode approach to minimize altitude loss. Firstly, an integral terminal sliding mode surface
Huaji Wang, Xunnian Wang, Zhenglong Zhu, Lai Yan, Yu Yang   +4 more
semanticscholar   +1 more source