Results 21 to 30 of about 2,386 (194)
Degradation of alumina and zirconia toughened alumina (ZTA) hip prostheses tested under microseparation conditions in a shock device [PDF]
This paper considers the degradation of alumina and zirconia toughened alumina vs. alumina for hip implants. The materials are as assumed to be load bearing surfaces subjected to shocks in wet conditions.
Geringer, Jean +3 more
core +9 more sources
Nowadays hip arthroplasty is recognized as one of the most successful orthopedic surgical procedures, even if it involves challenges to overcome, such that lately, younger and more active patients are in need of total arthroplasty.
Saverio Affatato, Alessandro Ruggiero
doaj +1 more source
The stick-slip phenomenon occurring between human skin and other surfaces [PDF]
This paper analyses the stick-slip phenomenon in tribosystems that include human skin and biocompatible polyethylene UHMWPE. The study focuses on the theoretical stability conditions of the movement of the UHMWPE polyethylene specimen in contact with ...
Andrei Tudor +3 more
doaj +1 more source
Foraging on sand particles: Coatings of soft radular teeth (Paludomidae, Gastropoda, Mollusca)
Abstract The radula is the ingesta‐gathering structure in Mollusca. As interface, it has to perform various tasks without functional deterioration caused by wear. Wear prevention is well investigated in mollusks that forage on rocks and that generate high punctual pressure with their hard teeth, which contain high inorganic contents at their tips.
Wencke Krings, Stanislav N. Gorb
wiley +1 more source
Theoretical approach of studying human fingers modelled as inflated membranes and experimental validation of study [PDF]
The human hand has evolved to become the most complex and versatile grasping and manipulation tool. The fingers play a crucial role in acquiring information about touched objects through tactile and thermal sensors.
Andrei Călin +3 more
doaj +1 more source
Synovial joint lubrication – does nature teach more effective engineering lubrication strategies? [PDF]
Nature shows numerous examples of systems which show energy efficiency, elegance in their design and optimum use of materials. Biomimetics is an emerging field of research in engineering and successes have been documented in the diverse fields of ...
Liskiewicz, T. +3 more
core +1 more source
Biotribology: Recent progresses and future perspectives
Biotribology deals with all aspects of tribology concerned with biological systems. It is one of the most exciting and rapidly growing areas of tribology.
Z.R. Zhou, Z.M. Jin
doaj +1 more source
Perspectives of 2D MXene Tribology
The past two years have witnessed increased experimental and theoretical efforts toward studying MXenes’ mechanical and tribological properties when used as lubricant additives, reinforcement phases in composites, or solid lubricant coatings. The most promising results in MXene tribology are summarized, future important problems to be pursued further ...
Andreas Rosenkranz +4 more
wiley +1 more source
Effect of Hygrothermal Ageing on Tribological Behaviour of PTFE-Based Composites
The present study investigates the influence of hygrothermal ageing on the tribological behaviour of polytetrafluoroethylene (PTFE) polymer composites. Three PTFE composites along with unfilled PTFE were tested in sliding contact against Inconel 625 (a ...
Mohammad-Reza Homayoun +2 more
doaj +1 more source
Slippage is a common phenomenon between laparoscopic graspers and tissues during minimally invasive surgery, which may lead to inefficient surgical operations, prolonged operation time, and increased patient suffering.
Yan Guo, Chengmo Cai, Wei Li
doaj +1 more source

