Results 61 to 70 of about 1,795,623 (284)

Decentralized Discrete-Time Formation Control for Multirobot Systems

open access: yesDiscrete Dynamics in Nature and Society, 2013
Inspired from the collective behavior of biological entities for the group motion coordination, this paper analyzes the formation control of mobile robots in discrete time where each robot can sense only the position of certain team members and the group
E. G. Hernandez-Martinez   +2 more
doaj   +1 more source

Robust Finite-Time Stabilization for Uncertain Discrete-Time Linear Singular Systems

open access: yesIEEE Access, 2020
This paper considers the robust finite-time stabilization problem for a class of discrete-time linear singular systems with norm-bounded parameter uncertainties. With the introduction of an additional matrix to describe the algebraic relationship between
Jianxin Wang   +3 more
doaj   +1 more source

An improved stability criterion for discrete-time time-delayed Lur'e system with sector-bounded nonlinearities

open access: yesAutomatika, 2022
The absolute stability problem of discrete-time time-delayed Lur'e systems with sector bounded nonlinearities is investigated in this paper. Firstly, a modified Lyapunov-Krasovskii functional (LKF) is designed with augmenting additional double summation ...
Lijuan Zhu, Chengyun Zhu
doaj   +1 more source

Preferences for post‐traumatic osteoarthritis prevention strategies in individuals with anterior cruciate ligament injury

open access: yesArthritis Care &Research, Accepted Article.
Objectives There is growing interest in evaluating new strategies to delay or prevent post‐traumatic osteoarthritis (PTOA) in individuals who have sustained anterior cruciate ligament (ACL) injury. This study sought to determine characteristics of potential treatments that are acceptable to patients with ACL injury.
Kevin Kennedy   +9 more
wiley   +1 more source

H∞ Control for Linear Positive Discrete-Time Systems

open access: yesJournal of Applied Mathematics, 2013
This paper is concerned with H∞ control for linear positive discrete-time systems. Positive systems are characterized by nonnegative restriction on systems’ variables.
Youmei Zhang   +2 more
doaj   +1 more source

Exploring Patients’ Profiles Associated With the Resolution of Acute Calcium Pyrophosphate Arthritis Treated With Colchicine and Prednisone: Post Hoc Analysis of a Randomized Controlled Trial

open access: yesArthritis Care &Research, EarlyView.
Objective The objective was to identify factors determining acute arthritis resolution and safety with colchicine and prednisone in acute calcium pyrophosphate (CPP) crystal arthritis. Methods We conducted a post hoc analysis of the COLCHICORT trial, which compared colchicine and prednisone for the treatment of acute CPP crystal arthritis, using a ...
Tristan Pascart   +14 more
wiley   +1 more source

H- Index for Stochastic Linear Discrete-Time Systems

open access: yesDiscrete Dynamics in Nature and Society, 2015
This paper discusses the H- index problem for stochastic linear discrete-time systems. A necessary and sufficient condition of H- index is given for such systems in finite horizon.
Yan Li, Weihai Zhang, Xikui Liu
doaj   +1 more source

Analysis of Algorithms for Velocity Estimation from Discrete Position Versus Time Data [PDF]

open access: yes, 1992
Algorithms for constructing velocity approximations from discrete position versus time data are investigated. The study is limited to algorithms suitable to provide velocity information in discrete-time feedback control systems such as microprocessor ...
Brown, Ronald H.   +2 more
core   +1 more source

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

Another New Solvable Many-Body Model of Goldfish Type

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
A new solvable many-body problem is identified. It is characterized by nonlinear Newtonian equations of motion (''acceleration equal force'') featuring one-body and two-body velocity-dependent forces ''of goldfish type'' which determine the motion ofan ...
Francesco Calogero
doaj   +1 more source

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