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DEVICE FOR DETERMINING THE COEFFICIENT OF SKIN FRICTION [PDF]
Skin tribology is very important scientific area because of its presence in everyday life in form of friction in contact of skin surface and various materials. The most often it appears between palm skin and fingers and object which are in someone hands (
Branislav DIMITRIJEVIĆ +2 more
doaj +2 more sources
Low friction layer in sanitary products for reduced skin irritation [PDF]
Sanitary napkins are essential during menstruation, but they can sometimes cause skin irritation due to friction. In this study, we propose a novel design: introducing a low-friction layer within the bulk of a sanitary napkin.
Toshiaki Nishi +5 more
doaj +2 more sources
Skin friction coefficient on a yarn package surface in ring spinning
The skin friction coefficient on the surface of a rotating yarn package affects the power required to drive the package. This paper examines the relationship between the skin friction coefficient on the package surface and its diameter and rotating speed,
Barrie Fraser +3 more
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Characterization of skin friction coefficient, and relationship to stratum corneum hydration in a normal Chinese population. [PDF]
<i>Background and Objectives:</i> Studies have demonstrated that some cutaneous biophysical properties vary with age, gender and body sites. However, the characteristics of the skin friction coefficient in different genders and age groups have not yet been well established.
Zhu YH +4 more
europepmc +4 more sources
Unsteady Magnetohydrodynamic Mixed Convection Flow over a Rotating Sphere with Sinusoidal Mass Transfer [PDF]
This paper investigates the unsteady magnetohydrodynamic (MHD) mixed convective fluid flow over a rotating sphere. An implicit finite difference scheme, together with quasi-linearization, is used to find non-similar solutions for the governing equations.
Saikrishnan Ponnaiah +2 more
doaj +1 more source
Bio-inspired Surface Texture Fluid Drag Reduction using Large Eddy Simulation [PDF]
Skin friction drag can be reduced through the application of bio-inspired riblet surfaces. Numerical simulations were performed using Large Eddy Simulation (LES) to investigate the effect of using riblets on reducing skin friction drag.
S. Hijazi, E. Tolouei
doaj +1 more source
The clothing fabric and skin interact continuously across the many regions of users′ bodies during wear, which can lead to both physical skin damage and discomfort. Therefore, this investigation aimed to explore the regional differences in skin friction, tactile perception, and sensitivity in both females and males during the skin-textile interaction ...
Mevra Temel +2 more
openaire +2 more sources
Wax-oil lubricants to reduce the shear between skin and PPE
Prolonged use of tight-fitting PPE, e.g., by COVID-19 healthcare workers leads to skin injuries. An important contributor is the shear exerted on the skin due to static friction at the skin-PPE interface.
Kian Kun Yap +5 more
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Integral relations for the skin-friction coefficient of canonical flows
We show that the Fukagata et al.'s (Phys. Fluids, vol. 14, no. 11, 2002, pp. 73–76) identity for free-stream boundary layers simplifies to the von Kármán momentum integral equation relating the skin-friction coefficient and the momentum thickness when the upper bound in the integrals used to obtain the identity is taken to be asymptotically large. If a
Ricco, P., Skote, M.
openaire +6 more sources
Decomposition of the skin-friction coefficient of compressible boundary layers
We derive an integral formula for the skin-friction coefficient of compressible boundary layers by extending the formula of Elnahhas and Johnson [“On the enhancement of boundary layer skin friction by turbulence: An angular momentum approach,” J. Fluid Mech. 940, A36 (2022)] for incompressible boundary layers.
Xu, D., Ricco, P., Duan, L.
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