Dynamic sliding friction was studied based on the angular velocity of a golf ball during an oblique impact. This study used the analytical model proposed for the dynamic sliding friction on lubricated and non-lubricated inclines. The contact area A and sliding velocity u of the ball during impact were used to describe the dynamic friction force Fd = λAu, where λ is a parameter related to the we...

1) The coordinates of the Centroid of the Molecule 2) The translational friction tensor 3) The translational/rotational coupling friction tensor in the Center of Resistance 4) The coordinates of the Center of Resistance 5) The rotational friction tensor in the Center of Resistance 6) The Translational diffusion tensor in the Center of Mobility 7) The translational/rotational coupling diffusion ...

Lubrication on sharp curves has been commonly adopted as a method of reducing friction between the wheel flange and rail gauge face to minimize wear and energy consumption. Additionally, lubrication between the running surface of the low-rail and the wheel tread has recently been recognized as a significant factor in reducing the likelihood of low-rail corrugation, squealing noise and rail gaug...

Economic theory provides two main explanations why changes in exchange rates can affect foreign direct investment (FDI). According to a first explanation, FDI reacts to exchange rate changes if there are information frictions on capital markets and if the investment by firms depends on their net worth (capital market friction hypothesis). According to a second explanation, FDI reacts to exchang...

B.N.J. Persson and E. Tosatti 1 Institut für Festkörperforschung, Forschungszentrum Jülich, D–52425 Jülich, Germany International School for Advanced Studies (SISSA), Via Beirut 2, I-34014 Trieste, Italy, and Istituto Nazionale di Fisica della Materia (INFM), Trieste, (Italy), and Abdus Salam International Center for Theoretical Physics (ASICTP), P.O. Box 586, I-34014 Trieste, Italy ABSTRACT In...

Sliding bearings with low coefficient of friction enable the base isolation system with longer natural period than previous ones and to be effective even for small to medium earthquakes. This paper introduces the sliding bearings with low coefficient of friction, which is almost under 0.03. It is shown that newly developed materials for the sliding bearings contribute to reduce coefficient of f...

This paper experimentally and numerically investigated the heat transfer and friction characteristics of microfluidic heat sinks with variously-shaped micro-ribs, i.e., rectangular, triangular and semicircular ribs. The micro-ribs were fabricated on the sidewalls of microfluidic channels by a surface-micromachining micro-electro-mechanical system (MEMS) process and used as turbulators to improv...

This work outlines the etiological factors for exercise-related foot blisters and the pertinent prevention strategies related to these causes. Blisters result from shear forces within the epidermis causing cell necrosis. The extent of skin shear is influenced by friction at the skin and other interfaces, various skin characteristics, bony movement, and the shear modulus of the foot ware. The nu...