Results 31 to 40 of about 1,917,813 (302)

A problem of unilateral contact of strings with variable tensions

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. Contact problems for strings are little-studied at present. The general method for the solution of these problems is not developed, although they are the direct continuation of Taylor and d’Alembert classical studies. The relevance of solving
Michael A. Osipenko
doaj   +1 more source

PENALTY METHOD FOR UNILATERAL CONTACT PROBLEM WITH COULOMB’S FRICTION FOR LOCKING MATERIAL [PDF]

open access: yesInternational Journal of Mathematical Modelling & Computations, 2016
In this work, we study a unilateral contact problem with non local friction of Coulombbetween a locking material and a rigid foundation. In the first step , we present the mathematicalmodel for a static process, we establish the variational formulation ...
Salah Bourichi, El Essoufi
doaj  

Altered In Vivo Knee Kinematics and Lateral Compartment Contact Position During the Single-Leg Lunge After Medial Unicompartmental Knee Arthroplasty

open access: yesOrthopaedic Journal of Sports Medicine, 2023
Background: Osteoarthritis (OA) progression in the lateral compartment is the most common reason for revision after medial unicompartmental knee arthroplasty (UKA).
Nan Zheng BS   +5 more
doaj   +1 more source

Problemas de contato unilateral em placas semi-espessas, sujeitas a grandes deflexões, utilizando uma teoria de ordem superior [PDF]

open access: yes, 1996
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoNeste trabalho é apresentada uma formulação incremental de elementos finitos para problemas de contato em placas, submetidas a grandes deslocamentos e com restrições ...
Barp, Jackson Luis
core  

The Role of Calcitonin Gene‐Related Peptide in High‐Altitude Headache: A Prospective Field Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective High‐altitude headache (HAH) is a common neurological condition associated with rapid ascent to high altitude. The pathophysiological mechanisms underlying HAH remain incompletely understood. Calcitonin gene‐related peptide (CGRP), a neuropeptide implicated in migraine pathophysiology, may play a key role in the pathophysiology of ...
Roman Schniepp   +4 more
wiley   +1 more source

Analysis of a Unilateral Contact Problem with Normal Compliance

open access: yesAnnals 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

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

On the decision of contact problems of structural mechanics with unilateral constraints and friction by step-by-step analysis [PDF]

open access: yesИнженерно-строительный журнал, 2013
Constructively nonlinear problems with unilateral constraints and friction with unknown in advance contact zone are frequent in the calculation of various structures.
A.A. Lukashevich, L.A. Rozin
doaj  

Pain and Patient‐Reported Physical Function Did Not Differ Among Body Composition Profiles in Patients With Hip Osteoarthritis

open access: yesArthritis Care &Research, EarlyView.
Objective To explore whether higher body fat and lower lean mass are associated with greater pain and worse patient‐reported physical function in individuals with hip osteoarthritis (OA). A secondary aim was to examine whether pain and patient‐reported physical function differ according to four body composition profiles: high body fat, low lean mass ...
Alexandra Ryan   +10 more
wiley   +1 more source

An analysis of parametric instability of risers

open access: yesLatin American Journal of Solids and Structures
In this work, three catenary riser models subjected to harmonic oscillations are studied. Two are finite-element models, one studied with Orcaflex, an offshore marine system analysis software, and another one with Abaqus, a generalist structural analysis
Fabio S. Prado   +2 more
doaj   +1 more source

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