Results 71 to 80 of about 162,331 (198)

Role of electron inertia and electron/ion finite Larmor radius effects in low-beta, magneto-Rayleigh-Taylor instability

open access: yes, 2018
The magneto-Rayleigh-Taylor (MRT) instability has been investigated in great detail in previous work using magnetohydrodynamic and kinetic models for low-beta plasmas.
Hakim, Ammar, Srinivasan, Bhuvana
core   +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  

A cut finite element method for coupled bulk-surface problems on time-dependent domains

open access: yes, 2015
In this contribution we present a new computational method for coupled bulk-surface problems on time-dependent domains. The method is based on a space-time formulation using discontinuous piecewise linear elements in time and continuous piecewise linear ...
Hansbo, Peter   +2 more
core   +1 more source

On finite-time stabilization via relay feedback control [PDF]

open access: yes2015 54th IEEE Conference on Decision and Control (CDC), 2015
— The problem of finite-time stabilization of multi-input linear system by means of relay feedback is considered. A new control design procedure, which combines convex embedding technique with implicit Lyapunov function method, is developed. The issues of practical implementation of the obtained implicit relay feedback are discussed. Theoretical result
Polyakov, Andrey, Hetel, Laurentiu
openaire   +2 more sources

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

An Eulerian Finite Element Method for PDEs in time-dependent domains

open access: yes, 2018
The paper introduces a new finite element numerical method for the solution of partial differential equations on evolving domains. The approach uses a completely Eulerian description of the domain motion. The physical domain is embedded in a triangulated
Lehrenfeld, Christoph   +1 more
core   +1 more source

Finite‐Time Stability and Stabilization of Nonlinear Quadratic Systems with Jumps [PDF]

open access: yesMathematical Problems in Engineering, 2014
This paper investigates the problems of finite‐time stability and finite‐time stabilization for nonlinear quadratic systems with jumps. The jump time sequences here are assumed to satisfy some given constraints. Based on Lyapunov function and a particular presentation of the quadratic terms, sufficient conditions for finite‐time stability and finite ...
openaire   +1 more source

Finite Time Stability and Optimal Control for Stochastic Dynamical Systems

open access: yesAxioms
In real-world applications, finite time convergence to a desired Lyapunov stable equilibrium is often necessary. This notion of stability is known as finite time stability and refers to systems in which the state trajectory reaches an equilibrium in ...
Ronit Chitre, Wassim M. Haddad
doaj   +1 more source

Finite-Time Stabilization of Uncertain Switched Positive Linear Systems with Time-Varying Delays

open access: yesDiscrete Dynamics in Nature and Society, 2015
This paper is concerned with finite-time stabilization (FTS) analysis for a class of uncertain switched positive linear systems with time-varying delays. First, a new definition of finite-time boundedness (FTB) is introduced for switched positive system.
Tianjian Yu   +3 more
doaj   +1 more source

Adaptive Finite-Time Command Filtered Fault-Tolerant Control for Uncertain Spacecraft with Prescribed Performance

open access: yesComplexity, 2018
In this paper, an adaptive finite-time fault-tolerant control scheme is proposed for the attitude stabilization of rigid spacecrafts. A first-order command filter is presented at the second step of the backstepping design to approximate the derivative of
Zhongtian Chen   +3 more
doaj   +1 more source

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