Results 21 to 30 of about 666,213 (309)
A Major Public Health Problem: Uncontrolled Wearing of Contact Lenses [PDF]
, 2012 Pur po se: To evaluate the behavior, attitude and point of view of contact lens wearers attending Mersin University. Ma te ri al and Met hod: Our study included students from the Faculty of Medicine whom we assumed to have the highest awareness about ...
Gülhan Temel +4 more
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OPTIMIZATION PROBLEMS FOR A THERMOELASTIC FRICTIONAL CONTACT PROBLEM
Mathematical Modelling and Analysis, 2021 In the present paper, we analyze and study the control of a static thermoelastic contact problem. We consider a model which describes a frictional contact problem between a thermoelastic body and a deformable heat conductor obstacle. We derive a variational formulation of the model which is in the form of a coupled system of the quasi-variational ...
Baiz, Othmane +3 more
openaire +4 more sources
Wheel–rail contact: experimental study of the creep forces–creepage relationships [PDF]
, 2014 The wheel–rail contact problem plays an important role in the simulation methods used to solve railway dynamics problems. As a consequence, many different mathematical models have been developed to calculate wheel–rail contact forces.
Guiral, A. +5 more
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Multibody dynamics simulation and experimental verification for unwinding behavior of bobbin yarn
Nihon Kikai Gakkai ronbunshu, 2015 This paper propses a numerical simulation model for the unwinding behavior of a bobbin yarn based on the multibody dynamics method. When the edge of a yarn, wound on a bobbin, is pulled in upper direction, it starts moving naturally from the static ...
Hidetoshi TAKEUCHI +4 more
doaj +1 more source
Frictionless Contact Between a Rigid Indentor and a Transversely Isotropic Functionally Graded Layer
International Journal of Applied Mechanics and Engineering, 2018 This article is concerned with the study of frictionless contact between a rigid punch and a transversely isotropic functionally graded layer. The rigid punch is assumed to be axially symmetric and is supposed to be pressing the layer by an applied ...
R. Patra, S.P. Barik, P.K. Chaudhuri
doaj +1 more source
Superhydrophobic surfaces: a model approach to predict contact angle and surface energy of soil particles [PDF]
, 2009 Wettability of soil affects a wide variety of processes including infiltration, preferential flow and surface runoff. The problem of determining contact angles and surface energy of powders, such as soil particles, remains unsolved.
Bachmann, Jörg +3 more
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Comparison of Contact Stress Distribution for Foam Seat and Seat of Auxetic Spring Skeleton
International Journal of Applied Mechanics and Engineering, 2013 The objective of this paper is to present and compare the results of numerical solutions of contact problem for two types of seats subjected to typical sitting loadings. The first seat is made of a typical hyperelastic foam, the other is designed with an
M. Janus-Michalska +2 more
doaj +1 more source
Analysis of a quasi-variational contact problem arising in thermoelasticity [PDF]
, 2020 We formulate and study two mathematical models of a thermoforming process involving a membrane and a mould as implicit obstacle problems. In particular, the membrane-mould coupling is determined by the thermal displacement of the mould that depends in ...
Rodrigues, José Francisco +2 more
core +1 more source
Mechanical Engineering Journal, 2021 Recent years have witnessed attempts to employ a system with rigid and extremely flexible components (SREF), usually consisting of strings, membranes, and so on, to realize huge structures for spacecraft in orbit.
Shuntaro OOSHIMA, Yoshiki SUGAWARA
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Contact urticaria to giraffe hair [PDF]
, 2005 Background: Immediate-type hypersensitivity to animal proteins is a common problem in people occupationally exposed to animals. Methods: A 19-year-old female working as a voluntary zookeeper in her off-time suffered from hives on her forearms following ...
Placzek, M. +3 more
core +1 more source