Results 101 to 110 of about 12,141,047 (255)

Design of passive fault-tolerant controllers of a quadrotor based on sliding mode theory

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
In this paper, sliding mode control is used to develop two passive fault tolerant controllers for an AscTec Pelican UAV quadrotor. In the first approach, a regular sliding mode controller (SMC) augmented with an integrator uses the robustness property of
Merheb Abdel-Razzak   +2 more
doaj   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

open access: yesAdvanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale   +6 more
wiley   +1 more source

Robust Quasi–LPV Model Reference FTC of a Quadrotor Uav Subject to Actuator Faults

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
A solution for fault tolerant control (FTC) of a quadrotor unmanned aerial vehicle (UAV) is proposed. It relies on model reference-based control, where a reference model generates the desired trajectory.
Rotondo Damiano   +2 more
doaj   +1 more source

A Review on Fault Diagnosis and Fault Tolerant Control Methods for Single-rotor Aerial Vehicles

open access: yes, 2014
Faults or failures are inevitable to occur and their prompt detection and isolation are essential for the dependability of various systems and for avoiding damages to the system itself, persons and the environment.
Hua CS(华春生)   +6 more
core  

Actuator Fault Tolerant Position Control of a Quadrotor Unmanned Aerial Vehicle

open access: yes, 2019
In this paper we design a fault tolerant single-loop position control of a quadrotor unmanned aerial vehicle. We design a nominal control law by using a feedback linearisation approach.
Rigatos G.   +11 more
core   +1 more source

Friend, Not Foe: Lowered Tissue Reactivity to Long‐Term Polyimide Implants

open access: yesAdvanced Science, EarlyView.
The choice of optimal neural probe designs remains a major challenge in the field of neurotechnology. This study investigated the biocompatibility of several probe variations, including material, thickness, width, and implantation strategy. It highlights the clear advantage of soft polyimide probes over stiff silicon probes for better device ...
Corinne Orlemann   +11 more
wiley   +1 more source

Active Fault-Tolerant Formation Control for Differential-Drive Unmanned Ground Vehicles Under the Separation-Bearing Control Framework

open access: yesDrones
This paper presents an observer-based active fault-tolerant control scheme for leader–follower formations of differential-drive unmanned ground vehicles under the Separation-Bearing Control framework.
Weizhong Chen, Zeyan Li, Shuo Dong
doaj   +1 more source

Complex system recovery by process programming redundancy [PDF]

open access: yesActa Montanistica Slovaca, 2000
This paper presents the recovery of a control system resistant against faults. We come out from parallel computer system with distributed memory and communication based upon exchange of messages.
Vokorokos Liberios
doaj  

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Hybrid Active-Passive Robust Fault-Tolerant Control of Event-Triggered Nonlinear NCS

open access: yes, 2017
In this paper, the authors aimed to analyze uncertain nonlinear networked control systems (NCS) under discrete event-triggered communication scheme (DETCS), in which an integrated design methodology between robust fault detection observer and active ...
Jun Wang, Wei Li, Xiaowan Yao
core   +1 more source

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