Results 71 to 80 of about 68,712 (298)

A note on finite-time and fixed-time stability [PDF]

open access: yesNeural Networks, 2016
In this letter, by regarding finite-time stability as an inverse problem, we reveal the essence of finite-time stability and fixed-time stability. Some necessary and sufficient conditions are given. As application, we give a new approach for finite-time and fixed-time synchronization and consensus.
Wenlian Lu, Xiwei Liu, Tianping Chen
openaire   +3 more sources

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Further Result on Finite-Time Stabilization of Stochastic Nonholonomic Systems

open access: yesAbstract and Applied Analysis, 2013
This paper further investigates the problem of finite-time state feedback stabilization for a class of stochastic nonholonomic systems in chained form.
Fangzheng Gao   +3 more
doaj   +1 more source

Evaluation of Plasticity and Creep Parameters From Tensile Stress–Strain Data for a Range of Strain Rates

open access: yesAdvanced Engineering Materials, EarlyView.
This plot compares experimental tensile stress–strain curves (with 4 different strain rates) and corresponding modelled curves (obtained using the optimised sets of Voce and Miller–Norton parameter values shown). The inferred M‐N values, characterizing the creep, are very similar to those obtained via conventional creep testing.
S. Ooi, R. P. Thompson, T. W. Clyne
wiley   +1 more source

Finite-Time Annular Domain Stability and Stabilization of Regime-Switching Jump Diffusion System

open access: yesIEEE Access
In this paper, the finite-time annular domain stability and stabilization of regime-switching jump diffusion system are discussed. With the help of explicit solution of multi-dimensional regime-switching jump diffusion system, we give the sufficient and ...
Ran Ni, Gui-Hua Zhao
doaj   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Finite-time stabilization by using degenerate feedback delay

open access: yesElectronic Journal of Differential Equations, 2015
Some examples are studied in which a linear controllable dynamical system can be steered towards a specific steady state by using some appropriate linear, time-varying delayed feedback controller.
Jose M. Vegas
doaj  

On feedback stabilization of nonlinear discrete-time state-delayed systems

open access: yes, 2009
In this paper, we consider the problem of feedback stabilization of discrete-time systems with delays. The systems under consideration are nonlinear and nonaffine.
Woihida Aggoune   +5 more
core   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Finite-Time Stabilization Control for a Rigid Spacecraft under Parameter Uncertainties

open access: yesJournal of Applied Mathematics, 2014
A novel finite-time control scheme is investigated for a rigid spacecraft in present of parameter uncertainties and external disturbances. Firstly, the spacecraft mathematical model is transformed into a cascading system by introducing an adaptive ...
Aihua Zhang, Jianfei Ni, Xing Huo
doaj   +1 more source

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