Results 1 to 10 of about 6,575 (259)

Discrete Unilateral Constrained Extended Kalman Filter in an Embedded System [PDF]

open access: yesSensors
Since its publication in the 1960s, the Kalman Filter (KF) has been a powerful tool in optimal state estimation. However, the KF and most of its variants have mainly focused on the state estimation of smooth systems.
Leonardo Herrera   +1 more
doaj   +2 more sources

Buckling versus unilateral constraint for a multistable metamaterial element

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2022
A structural element is designed and investigated, forming the basis for the development of an elastic multistable metamaterial. The leitmotif of the structural design is the implementation of a strut characterized by a bifurcation occurring at either vanishing tensile or compressive load.
Davide Bigoni, Francesco Dal Corso
exaly   +6 more sources

Geometric representation of detachment conditions in systems with unilateral constraint [PDF]

open access: yesRegular and Chaotic Dynamics, 2008
Summary: Mechanical systems with unilateral constraints that can be represented in the contact mode on the phase plane are considered. On the phase plane we construct domains that satisfy the following conditions 1) a detachment from the constraint is impossible; 2) the sign of the constraint reaction corresponds to its unilateral character.
A P Ivanov
exaly   +3 more sources

Personalized goal setting and predictors of functional gains following constraint-induced movement therapy in preschool-aged children with unilateral cerebral palsy [PDF]

open access: yesPLoS ONE
ObjectiveThis study aimed to identify caregiver-selected goal characteristics that predict functional improvements following constraint-induced movement therapy (CIMT), offering novel insights into personalized rehabilitation for younger children with ...
Youngsub Hwang, Jeong-Yi Kwon
doaj   +3 more sources

The Effect of Constraint-Induced Movement Therapy Combined With Repetitive Transcranial Magnetic Stimulation on Hand Function in Preschool Children With Unilateral Cerebral Palsy: A Randomized Controlled Preliminary Study

open access: yesFrontiers in Behavioral Neuroscience, 2022
Constraint-induced movement therapy (CIMT) combined with repetitive transcranial magnetic stimulation (rTMS) have shown great potential in improving function in schoolchildren with unilateral cerebral palsy attributed to perinatal stroke.
Kaishou Xu, Liru Liu, Hongmei Tang
exaly   +3 more sources

Enhancing Grip Strength and Manual Dexterity in Unilateral Cerebral Palsy: A Randomized Trial of Mirror Visual Feedback vs. Modified Constraint-Induced Movement Therapy [PDF]

open access: yesBrain Sciences
Background/Objectives: Manual dexterity and hand strength are common challenges in children with unilateral cerebral palsy (UCP), limiting the use of their affected upper limb and impacting daily activities.
Mohamed A. Abdel Ghafar   +9 more
doaj   +2 more sources

Realization of the brachistochronic motion of Chaplygin sleigh in a vertical plane with an unilateral nonholonomic constraint [PDF]

open access: yesTheoretical and Applied Mechanics, 2023
The paper considers the procedure for determining the brachistochronic motion of the Chaplygin sleigh in a vertical plane, where the blade is such that it prevents the motion of the contact point in one direction only.
Obradović Aleksandar M.   +3 more
doaj   +1 more source

Tykhonov triples and convergence results for hemivariational inequalities

open access: yesNonlinear Analysis, 2021
Consider an abstract Problem P in a metric space (X; d) assumed to have a unique solution u. The aim of this paper is to compare two convergence results u'n → u and u''n → u, both in X, and to construct a relevant example of convergence result un → u ...
Rong Hu, Mircea Sofonea, Yi-Bin Xiao
doaj   +1 more source

On the dynamics of systems with one-sided non-integrable constraints [PDF]

open access: yesTheoretical and Applied Mechanics, 2019
In the paper we take the first steps in studying the dynamics of systems with one-sided differential constraints defined by inequalities in the phase space. We give a general definition of motion for systems with such constraints. Within the framework of
Kozlov Valery V.
doaj   +1 more source

The effect of construction joints and cracks on the stress-strain state of the arch-gravity dam [PDF]

open access: yesИнженерно-строительный журнал, 2013
The aim of the paper was to review the stress-strain state of an arch-gravity dam of the Sayano-Shushenskaya HPP, which has construction and contact joints. The problem is solved by finite element method using software package SOFiSTiK.
G.S. Kolosova, V.V. Lalin, A.V. Kolosova
doaj   +1 more source

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