Results 41 to 50 of about 1,052 (252)
Aerospace, 2022 Active disturbance rejection control (ADRC) is a model-independent method widely used in passive fault-tolerant control of the quadrotor unmanned aerial vehicle.
Shaojie Ai +3 more
doaj +1 more source
Integral Sliding Mode Fault-Tolerant Control and Active Vibration Suppression of a Flexible Spacecraft in the Presence of External Disturbances [PDF]
مکانیک هوافضا, 2023 An active vibration control algorithm and robust integral sliding mode control (SMC) are discussed to stabilize the attitude of the flexible spacecraft under external disturbances and actuator faults.
Milad Azimi +2 more
doaj
Passive Fault Tolerant Lateral Controller Design For an UAV
IFAC-PapersOnLine, 2018 Abstract In this study a passive lateral fault tolerant controller for an UAV is designed using dynamic inversion (DI) method and robust integral of the signum of the error (RISE) techniques. The details of the methods are summarized. As the reference model of the tracking controller, UAV controlled by feedback type controller is used and the control
Hajiyev, Chingiz +2 more
openaire +2 more sources
Review of Fault-Tolerant Control Methods for Suspension Systems: From Road Vehicles to Maglev Trains
MathematicsRoad vehicles and maglev trains have garnered significant attention, with their suspension systems being crucial for safe and stable performance. However, these systems can be compromised by faults such as sensor and actuator failures, posing risks to ...
Fei Ni +5 more
doaj +1 more source
Systematic Fault Tolerant Control Based on Adaptive Thau Observer Estimation for Quadrotor Uavs
International Journal of Applied Mathematics and Computer Science, 2015 A systematic fault tolerant control (FTC) scheme based on fault estimation for a quadrotor actuator, which integrates normal control, active and passive FTC and fault parking is proposed in this paper.
Cen Zhaohui +2 more
doaj +1 more source
Passive Fault Tolerant Control of PEMFC air feeding system [PDF]
International Journal of Hydrogen Energy, 2016 In this paper, a Passive Fault Tolerant Control strategy dedicated to air feeding system fault based on an auto-tuning PID regulator is designed and implemented on a real fuel cell test bench. The present work compares the auto-tuning PID strategy performance to classical PID controller and highlights its benefits during faulty operation.
Carole Lebreton +4 more
openaire +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level
Aging and Cancer, EarlyView.This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley +1 more source
Optimal Passive Fault Tolerant Control of a High Redundancy Actuator [PDF]
IFAC Proceedings Volumes, 2009 The High Redundancy Actuator (HRA) project deals with the construction of an actuator using many redundant actuation elements. If one element fails, this changes the behaviour slightly, but the system still remains operation. A key challenge in this project is to design a passive fault tolerant controller that maintains the required performance in the ...
Steffen, T. +4 more
openaire +2 more sources
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source