Published in Tribology Letters
This paper presents a numerical analysis of the hydrodynamic pressure build-up between parallel surfaces. According to the Reynolds theory, it is not possible to generate a pressure between flat parallel sliding surfaces. However, experimental results demonstrate that mechanical seal surfaces can be separated by a full fluid film if the sliding spe...
Published in Journal of Low Temperature Physics
I present theoretical calculations of the thermal conductivity of Fermi liquid 3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^3$$\end{document}He confined to a slab ...
This paper attempts to study a ferrofluid lubrication based rough sine film slider bearing with assorted porous structure using a numerical approach. The fluid flow of the system is regulated by the Neuringer-Rosensweig model. The impact of the transverse surface roughness of the system has been derived using the Christensen and Tonder model. The c...
Adhesion forces between tungsten spherical microparticles and tungsten substrates with different roughnesses have been measured using the Atomic Force Microscopy (AFM) colloidal probe technique. Mean roughnesses of the tungsten substrates were measured by AFM and were ranked in three categories i.e. nanoscale, sub-microscale and microscale roughnes...
Published in Arabian Journal of Geosciences
Shaft friction is an important component of the pile foundation bearing capacity in construction projects, whereas the roughness of a pile–rock interface is one of the key components affecting shaft friction. An accurate characterization of the roughness of a pile–rock interface can help in determining the lateral friction of the pile–rock interfac...
Published in tm - Technisches Messen
Die Oberflächeneigenschaften, insbesondere die Rauheit, sind in der Industrie von großer Bedeutung. Derzeit gibt es zahlreiche Verfahren zur optischen Rauheitsmessung. Ziel der in diesem Artikel beschriebenen Arbeiten ist es, eine Verbesserung der in [1, 2] beschriebenen Verfahren zu erzielen. Da bei realen Rauheitsmessungen gekrümmte Streifen auft...
Published in Materials science & engineering. C, Materials for biological applications
Despite the tremendous acceptance of additively manufactured (AM) Titanium alloys (Ti6Al4V) in the field of biomedical engineering, the high surface roughness due to partially-melted particles (fabricated in selective laser melting (SLM) process), limits their uses as hip implants. The objective of this study, therefore, is to modify the SLM fabric...
Published in Journal of Experimental Orthopaedics
BackgroundUltrasonic (US) devices are used in laparoscopic, dental, and spinal surgeries, while it is difficult to use for the joint under irrigation and perfusion solutions due to lack of power. A new US device is developed with greater voltage improvement and has been implemented in the arthroscopic field. The aim is to compare the characteristic...
Published in Journal of the Brazilian Society of Mechanical Sciences and Engineering
Aerospace and automobile industries employ aluminium alloys due to its lightweight and excellent resistance to corrosion. As aluminium is highly reflective and highly thermally conductive, it is difficult-to-cut material by laser processing. The quality characteristics of the cut predominantly depend upon the combination of laser processing paramet...
Published in Environmental Earth Sciences
A rapid cooling of rocks caused by rainfall from fire-generated atmospheric convection after the conflagration would produce thermal shock. It may affect intensely future decay patterns of the rock, which can then be related to rock weathering and geomorphological change. In this paper, thermal shock experiments at different temperatures and cycles...
