Národní úložiště šedé literatury Nalezeno 5 záznamů.  Hledání trvalo 0.00 vteřin. 
Synovial fluid filtration by articular cartilage under cyclical loading
Hlaváček, Miroslav
Lubrication of the human ankle joint in walking is analysed.For the normal joint, within each step, the synovial fluid filmshortly turns into a thin protecting gel layer. With thearthritic joint, this protecting gel film is depleted afterseveral steps and the surfaces get into the contact.
Rheological processes in the surface layer of articular cartilage under loading
Kafka, Vratislav
A mesomechanical rheological analysis of the deformation processes in the structure of this tangential zone discloses how strongly the stressing of the collagen fibers depends on the rate of loading of the joint.
Micromechanical Aspects of Inception of Cracks in Articular Cartilage
Kafka, Vratislav
The inception of cracks that are observed on the surface of articular cartilage is explained by taking into account the microstructure: There are - under the surface - dense collagen fibers lying parallel to the surface of cartilage an orientated in one direction. It is shown that an impact loading can lead to rupture of these fibers and subsequent creation of cracks.
Squeeze - Film Lubrication of the Human Ankle Joint with the Superficial Zone of Articular Cartilage Intact or Worn out
Hlaváček, Miroslav
A squeeze-film lubrication model of the human ankle joint with the fluid transport across the articular surface is presen ted. The intact articular superficial zone is considered as an inextendible permeable membrane and for this case the synovial fluid film maintains for long compared to the case with super ficial zone worn out (early osteoarthritis).

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