نتایج جستجو برای: dowson
تعداد نتایج: 111 فیلتر نتایج به سال:
This paper reviews the recent advancements in computational modelling of lubrication hip and knee joint replacements, especially those concerning Professor Duncan Dowson’s contribution. The review starts with development five key parameters that appeared pioneered Hamrock–Dowson formula. Then, theory approaches for mixed which artificial replacements operate are reviewed. We also discuss curren...
It is proposed to use elastomeric composites as artificial joint bearing surfaces to increase their fluid film lubrication and therefore reduce the number of failures which have been attributed to wear mechanisms. The fluid generated between the surfaces supports part of the load and prevents direct contact of the bearing surfaces. In order to obtain optimum elastohydrodynamic lubrication, elas...
Martijn A. Spruit, Sally J. Singh, Chris Garvey, Richard ZuWallack, Linda Nici, Carolyn Rochester, Kylie Hill, Anne E. Holland, Suzanne C. Lareau, William D.-C. Man, Fabio Pitta, Louise Sewell, Jonathan Raskin, Jean Bourbeau, Rebecca Crouch, Frits M. E. Franssen, Richard Casaburi, Jan H. Vercoulen, Ioannis Vogiatzis, Rik Gosselink, Enrico M. Clini, Tanja W. Effing, François Maltais, Job van der...
Combatting AMR: Photoactivatable Ruthenium(II)isoniazid Complex Exhibits Rapid Selective Antimycobacterial Activity† Nichola A. Smith, Pingyu Zhang, Simon E. Greenough, Michael D. Horbury, Guy Clarkson, a Daniel McFeely, Abraha Habtemariam, Luca Salassa, Vasilios G. Stavros, Christopher Dowson,* Peter J. Sadler* Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL...
The objective of the present paper is to theoretically investigate the steady-state performance characteristics of journal bearing of finite width, operating with micropolar lubricant in a turbulent regime. In this analysis, the turbulent shear stress coefficients are used based on the Constantinescu’s turbulent model suggested by Taylor and Dowson with the assumption of parallel and inertia-le...
Simwiary. \lMultiple forms of hydIrolytic enzymes Nvere deemonstrated in extracts of healthy tean leaves (Phla(scoluts vtulgaris L.) anld bean leaves infecte(d with the halo blight organism [Pseudoiiioiias phascolicola (Burkh.) Dowson] by polyacrylamide (lisc elecrophoresis. Bean leaves conitainiedl up to 4 acid l)hosphatase bands, 9 esterase banlds active towards a-niaphthyl acetate, alnd 7 es...
Mixed-addenda vanadium substituted polyoxometalate supported on anatase TiO2 crushed nano leaf was synthesized by an unusual reaction with titanium tetraisopropoxide at 100 ºC via sol–gel method under oil-bath condition. The materials characterized by XRD, TEM, IR and UV–vis techniques. In the present work, efficient oxidative of thiols with polyoxometalate-TiO2/hydrogen peroxide ...
Since the first frame-mounted fascia lata heart valves were used clinically (Ionescu and Ross, 1969), over 260 tissue valves made of autologous or homologous fascia lata or of heterologous pericardium have been inserted at this institution in the mitral, aortic, and tricuspid positions. Encouraged by our results, especially with aortic valve replacement, over more than four and a half years (Io...
7. Waldenström J, Broman T, Carlsson I, Hasselquist D, Achterberg RP, Wagenaar JA, et al. Prevalence of Campylobacter jejuni, Campylobacter lari, and Campylobacter coli in different ecological guilds and taxa of migrating birds. Appl Environ Microbiol. 2002;68:5911–7. DOI: 10.1128/AEM.68.12.5911-5917.2002 8. Dingle KE, Colles FM, Wareing DR, Ure R, Fox AJ, Bolton FE, et al. Multilocus sequence ...
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