In the pleural space, sliding between the lung and chest wall induces shear stress that could damage the delicate mesothelial cells covering the tissue surfaces. Normally, the pleural space, which is filled with fluid, is able to sustain continuous shear loading throughout its lifetime. To understand the mechanisms in preventing frictional damage on mesothelial tissue, we conducted experiments ...

Increased machine efficiency is a requirement in today’s world and geared transmissions are no exception. A back-toback gear test rig was used to compare dip lubrication with spray lubrication regarding gearbox efficiency, mesh efficiency, gear temperature and surface roughness. Gears lubricated at the inlet of the mesh show a lower measured temperature when compared to spray lubrication at the...

Bio-inspired lubrication has gained great interest among researchers due to the fact that there are several examples in nature where biomolecules can enhance lubrication and provide low friction and low wear properties. VTT is currently running two projects on bio-based lubrication (“New Bioinspired and Bio-based Solutions for Lubrication (NEWLUB)” and “Biomimetic Water Lubrication” (BIOWAL)) t...

self-mutilation is defined as intentional damaging of the body without intent to die.  this behavior is observed among groups of psychiatric patients particularly schizophrenics.  in these patients, self-mutilative behavior may have unusual manifestations related to delusion and hallucination.  in this article, an unusual form of self-mutilation of a paranoid schizophrenic patient is reported. ...

Abstract We study the frictional response of water-lubricated gold electrodes subject to an electrostatic potential difference using molecular dynamics simulations. Contrary previous studies on electrotunable lubrication that were carried out by fixing charges, our simulations keep at fixed a variable charge method. For pure water and NaCl solutions, viscosity is independent polarization electr...