Results 71 to 80 of about 15,708,220 (295)

A Finite-Time Disturbance Observer-Based Control for Constrained Second-Order Dynamical Systems and Its Application to the Attitude Tracking of a UAV

open access: yesMathematics
As second-order dynamical systems are omnipresent, solving the control problem for such a class of systems has attracted worldwide attention. Among many techniques, the backstepping control method is well-known for its straightforward design and efficacy,
Nguyen Xuan Mung   +5 more
doaj   +1 more source

Finite-Time Trajectory Tracking Control for Overhead Crane Systems Subject to Unknown Disturbances

open access: yesIEEE Access, 2019
In this paper, a finite-time trajectory tracking control method for overhead crane systems with unknown disturbances is proposed. The controller is designed in the framework of observer-based control design, therefore, it works well even in the presence ...
Menghua Zhang   +2 more
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Finite element solutions to boundary value problems [PDF]

open access: yes, 1976
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis consists of two distinct parts which deal with two-point boundary value problems and parabolic problems, respectively.
Moore, P
core   +6 more sources

Adaptive Neural Network Finite-Time Prescribed Performance Consensus Control for a Class of Second-Order Multi-Agent Systems

open access: yesGuidance, Navigation and Control
This research investigates the semi-global practical finite-time prescribed performance consensus control issue for a class of second-order multi-agent systems with unknown nonlinear functions. Unlike the previous finite-time control set by a finite-time
Chi Ma, Jiahe Huo, Dianbiao Dong
doaj   +1 more source

Scheduling for finite time consensus

open access: yes2009 American Control Conference, 2009
We study the problem of link scheduling for discrete-time agents to achieve average consensus in finite time under communication constraints. We provide necessary and sufficient conditions under which finite time consensus is possible. Furthermore, we prove bounds on the consensus time and exhibit provably optimal communication policies.
Chih-Kai Ko, Ling Shi 0001
openaire   +3 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Fractional-order backstepping sliding mode control for the speed tension and screw down system of the reversible cold strip rolling mill

open access: yesSystems Science & Control Engineering
This paper investigates the robust control problem of the speed tension and screw down system of Reversible Cold Strip Rolling Mill (RCSRM). A finite-time observer is proposed to observe the uncertainties of the system. Based on the finite time observer,
Yujing Guo, Zhuang Ma, Minghao Lin
doaj   +1 more source

Finite-time control method for distributed formation of ships based on finite-time observer

open access: yesZhongguo Jianchuan Yanjiu, 2020
[Objectives] In order to solve the formation control problem of multiple ships whose velocity measurements cannot be used directly and the environment disturbances are bounded,a finite-time control method for the distributed formation based on finite ...
YU Lingling   +4 more
doaj   +1 more source

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

open access: yesAdvanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao   +6 more
wiley   +1 more source

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