Results 31 to 40 of about 7,404 (306)

Unified primal-dual active set method for dynamic frictional contact problems

Fixed Point Theory and Algorithms for Sciences and Engineering, 2022
In this paper, we propose a semi-smooth Newton method and a primal-dual active set strategy to solve dynamical contact problems with friction. The conditions of contact with Coulomb’s friction can be formulated in the form of a fixed point problem ...
Stéphane Abide, Mikaël Barboteu, Soufiane Cherkaoui, Serge Dumont   +3 more
doaj   +1 more source

A Multivalued Variational Inequality with Unilateral Constraints [PDF]

, 2016
The present paper represents a continuation of [3]. There, we studied a new class of variational inequalities involving a pseudomonotone univalued operator and a multivalued operator, for which we obtained an existence result, among others. In the current paper we prove that this result remains valid under significantly weaker assumption on the ...
Piotr Kalita, Stanislaw Migórski, Mircea Sofonea   +2 more
openaire   +1 more source

Single Blind Randomized Controlled Trial of Modified Constraint-Induced Movement Therapy in Infants With the Sequelas of Unilateral Brachial Plexus Injury

Frontiers in Human Neuroscience, 2022
ObjectiveTo explore the effect of modified constraint-induced movement therapy (mCIMT) on upper limbs residual dysfunction for infancy with the sequelas of unilateral brachial plexus injury (uBPI).MethodsSingle blind randomized controlled trial of mCIMT ...
Zhenzhen Cui, Le Liu, Xi Chen, Haiyan Zeng, Shizhu Zheng, De Wu, De Wu   +6 more
doaj   +1 more source

Tracking control of mechanical systems with a unilateral position constraint inducing dissipative impacts [PDF]

, 2012
In this paper, the tracking control problem is considered for mechanical systems with unilateral constraints with dissipative impacts. In these systems, impacts are triggered at the exact moment when the constraint becomes active.
R.G. Sanfelice, Biemond, J.J.B., Heemels, W.P.M.H., Sanfelice, R.G., Biemond, JJB Benjamin, Nijmeijer, H., J.J.B. Biemond, van de Wouw, N, N. van de Wouw, Wouw, van de, N., Heemels, WPMH, Sanfelice, RG, Nijmeijer, H Henk, W.P.M.H. Heemels, Heemels, WPMH Maurice, Wouw, N Nathan van de, Nijmeijer, H, H. Nijmeijer, Biemond, JJB   +18 more
core   +1 more source

Nonlinear periodic system with unilateral constraints

Topological Methods in Nonlinear Analysis, 2019
In this paper, the following periodic system is studied: \[ a(u'(t))' \in A(u(t)) + f(t,u(t),u'(t)) \quad \text{a.e.}\;\, t \in [0,b],\qquad u(0)=u(b), \ u'(0)=u'(b), \] where \(a : \mathbb{R}^N \to \mathbb{R}^N\) is continuous and strictly monotone, \(A\) is a maximal monotone operator with \(D(A) \subset \mathbb{R}^N\), and the map \(f\) is a ...
Sergiu Aizicovici, Nikolaos S. Papageorgiou, Vasile Staicu   +2 more
openaire   +4 more sources

A weak formulation for a rate-independent delamination evolution with inertial and viscosity effects subjected to unilateral constraint [PDF]

, 2015
We consider a system of two viscoelastic bodies attached on one edge by an adhesive where a delamination process occurs. We study the dynamic of the system subjected to external forces, suitable boundary conditions, and an unilateral constraint on the ...
Scala, Riccardo
core   +1 more source

Clinical significance of dynamical network indices of surface electromyography for reticular neuromuscular control assessment

Journal of NeuroEngineering and Rehabilitation, 2023
Background There is currently no objective and accurate clinical assessment of reticular neuromuscular control in healthy subjects or patients with upper motor neuron injury.
Jinping Li, Xianglian Kang, Ke Li, Ying Xu, Zhengfei Wang, Xinzhi Zhang, Qingjia Guo, Runing Ji, Ying Hou   +8 more
doaj   +1 more source

A Viscoelastic Contact Problem with Adhesion and Surface Memory Effects

Mathematical Modelling and Analysis, 2014
We consider a mathematical model which describes the quasistatic contact between a viscoelastic body and an obstacle, the so-called foundation. The material's behavior is modelled with a constitutive law with long memory.
Mircea Sofonea, Flavius Patrulescu
doaj   +1 more source

Bilateral and unilateral arm training improve motor function through differing neuroplastic mechanisms: a single-blinded randomized controlled trial [PDF]

, 2010
BACKGROUND AND PURPOSE: This randomized controlled trial tests the efficacy of bilateral arm training with rhythmic auditory cueing (BATRAC) versus dose-matched therapeutic exercises (DMTEs) on upper-extremity (UE) function in stroke survivors and ...
Larry W. Forrester, Goldberg, A.P., Forrester, L W, Luft, A, Daniel F. Hanley, Forrester, L.W., Macko, R F, Whitall, Jill, Sorkin, J.D., Andrew P. Goldberg, Whitall, J, Macko, R.F., Luft, A., Waller, S M, Goldberg, A P, John D. Sorkin, Hanley, D F, Sorkin, J D, Richard F. Macko, Waller, S.M., Sandy McCombe Waller, Andreas Luft, Hanley, D.F., Jill Whitall   +23 more
core   +1 more source

Analysis of a Unilateral Contact Problem with Normal Compliance

Annals of the West University of Timisoara: Mathematics and Computer Science, 2014
The paper deals with the study of a quasistatic unilateral contact problem between a nonlinear elastic body and a foundation. The contact is modelled with a normal compliance condition associated to unilateral constraint and the Coulomb's friction law ...
Touzaline Arezki, Guettaf Rachid
doaj   +1 more source