Results 1 to 10 of about 1,758,160 (162)
Third body damage and wear in arthroplasty bearing materials: A review of laboratory methods [PDF]
Third body wear of arthroplasty bearing materials can occur when hard particles such as bone, bone cement or metal particles become trapped between the articulating surfaces. This can accelerate overall implant wear, potentially leading to early failure.
Raelene M Cowie, Louise M Jennings
doaj +2 more sources
Third Body Wear of UHMWPE-on-PEEK-OPTIMA™. [PDF]
PEEK-OPTIMA™ is being considered as an alternative to cobalt chrome (CoCr) in the femoral component of total knee replacements. To date, investigations of ultra-high molecular weight polyethylene (UHMWPE)-on-PEEK have shown an equivalent wear rate to conventional implant materials under standard conditions.
Cowie RM +3 more
europepmc +5 more sources
Emerging in the UK in the 1980s, Scratch Video established a paradoxical union of mass-media critique, Left-wing politics, and music-video and advertising aesthetics with its use of moving-image appropriation in the medium of videotape.
Goldsmith, Leo
doaj +6 more sources
Roughness Evolution Induced by Third-Body Wear. [PDF]
AbstractSurface roughness is a key factor when it comes to friction and wear, as well as to other physical properties. These phenomena are controlled by mechanisms acting at small scales, in which the topography of apparently flat surfaces is revealed.
Garcia-Suarez J, Brink T, Molinari JF.
europepmc +4 more sources
Ultrasound gel minimizes third body debris with partial hardware removal in joint arthroplasty [PDF]
Hundreds of thousands of revision surgeries for hip, knee, and shoulder joint arthroplasties are now performed worldwide annually. Partial removal of hardware during some types of revision surgeries may create significant amounts of third body metal ...
Aidan C. McGrory +2 more
doaj +2 more sources
A Comparison of Averaged and Full Models to Study the Third-Body Perturbation [PDF]
The effects of a third-body travelling in a circular orbit around a main body on a massless satellite that is orbiting the same main body are studied under two averaged models, single and double, where expansions of the disturbing function are made, and ...
Carlos Renato Huaura Solórzano +1 more
doaj +2 more sources
Third Body Wear of an All-Polymer, PEEK-OPTIMA™ on Ultra-High-Molecular-Weight Polyethylene Total Knee Replacement [PDF]
Experimental wear simulation of a PEEK-OPTIMA™ polymer-on-UHMWPE total knee replacement has shown equivalent UHMWPE wear to conventional knee replacement materials (cobalt chrome-on-UHMWPE) when tested in a clean environment. The aim of this study was to
Raelene M. Cowie +4 more
doaj +2 more sources
Influence of Chemical Heterogeneity and Third Body on Adhesive Strength: Experiment and Simulation
We investigate experimentally and numerically the influence of chemical heterogeneity and of third-body particles on adhesive contact. Chemical heterogeneity is generated by chemical treatment of the contacting bodies changing locally the surface energy.
Iakov A. Lyashenko +4 more
doaj +1 more source
Period Change of the Contact Binary AH Tauri [PDF]
New BVRI photometric observations of the contact binary AH Tau were performed with the 61 cm reflector and a 2K CCD camera at the Sobaeksan Optical Astronomy Observatory during seven nights from September to December, 2001. A total of 144 times of minima
Dongjoo Lee +5 more
doaj +1 more source
REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE [PDF]
Observations of times of minimum lights of the eclipsing binary V65l Cas were carried out on the three nights from November 21-23, 2000. From our observations a total of seven new times of minimum lights was obtained.
Chun-Hwey Kim +4 more
doaj +1 more source

