Results 241 to 250 of about 8,751,318 (290)
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Finger joint contact areas and pressures
Journal of Orthopaedic Research, 1985AbstractAlthough the joints of the index finger are similar geometrically and kinematically, the occurrence of degenerative joint disease is more frequent and severe in the distal interphalangeal joint. Much circumstantial evidence exists to suggest a mechanical cause for the observed differences in frequency.
J M, Moran, J H, Hemann, A S, Greenwald
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Tibiofemoral Contact Area-Determination and Implications
The Journal of Bone & Joint Surgery, 1972We have presented a roentgenographic method of determining the area of contact of the femur on the medial and lateral tibial plateaus. The area of contact on both tibial plateaus decreases throughout the first 35 degrees of flexion. The average area of contact on the medial plateau was 1.6 times greater than the area on the lateral plateau.
D B, Kettelkamp, A W, Jacobs
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Contact areas in the thumb carpometacarpal joint
Journal of Orthopaedic Research, 1995AbstractThe thumb carpometacarpal joint is a common site of osteoarthritis. It has been hypothesized that peaks of localized stress on the dorsoradial or volar‐ulnar regions, or both, of the articular surfaces of the trapezium and metacarpal lead to erosion of cartilage and may be responsible for the progression of the disease.
G A, Ateshian +5 more
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Dependence of Skin Permeability on Contact Area
Pharmaceutical Research, 2003We report that experimentally measured skin permeability to hydrophilic solutes increases with decreasing contact area between the formulation and the skin. Our results suggest that an array of smaller reservoirs should thus be more effective in increasing transdermal drug delivery compared to a large single reservoir of the same total area ...
Pankaj, Karande, Samir, Mitragotri
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Contact Areas in Human Elbow Joints
Journal of Biomechanical Engineering, 1982The paper describes the results of in-vitro experiments to determine the contact areas in the elbow joint during different anatomical positions. The casting technique, using wax as a casting material, was used in this study. The shape and size of the contact areas change, in different elbow positions ranging from full extension to full flexion.
V K, Goel, D, Singh, V, Bijlani
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Contacting Rough Surfaces: Hertzian Contacts Versus Welded Areas
International Journal of Fracture, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sevostianov, Igor, Kachanov, Mark
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Thermotactile thresholds at the fingertip: Effect of contact area and contact location
Somatosensory & Motor Research, 2010Thresholds for the detection of changes in temperature are used to indicate neuropathy, but a variety of different contact areas and contact locations are used. This study was designed to determine the effects of variations in contact area and contact location on both warm and cool thresholds at the fingertip.
Seah, Sue Ann, Griffin, M.J.
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On the Contact Area of Nominally Flat Hertzian Contacts
Tribology Letters, 2016In a recent paper, Pastewka and Robbins (Appl Phys Lett 108:221–601, 2016) state an analytical expression for the real contact area of a Hertzian tip with small-scale roughness. We confirm that their formula predicts real contact areas quite well—with less than 10 % error.
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Determination of the actual contact area during sliding contact
Wear, 1981Abstract A new method for determining the actual contact area of conducting samples by measuring the total electrical resistance of the contacting pair is described. The results of experimental determinations of the actual contact area are given and discussed.
A.T. Filayev, A.V. Kornilov, L. Wegrzyn
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Adhesive Contact of Bodies Having an Elliptical Contact Area
World Tribology Congress III, Volume 1, 2005The so-called JKR theory of adhesion between elastic spheres in contact (Johnson, Kendall & Roberts 1971, Sperling 1964) has been widely used in micro-tribology. In this paper the theory is extended to solids of general shape and curvature. It is assumed that the area of contact is elliptical which turns out to be approximately true, though the ...
K. L. Johnson, J. A. Greenwood
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