We investigate the femtosecond laser-matter interaction for a tungsten carbide with 10% of cobalt. A femtosecond laser (1030 nm) with a pulse duration of 400 fs was used. For cumulated fluences between 1.
* Thirteen men and thirteen women participated in experiments that measured the tangential and normal forces during finger movements across the surfaces, revealing notable differences in friction behaviors between genders.
* Findings highlight the importance of the fingerpad's lipid/water ratio and the roughness of the fingerpad, indicating that men generally have rougher finger surfaces than women, affecting their ability to distinguish between different levels of friction.