Spk Reduced peak height (roughness of peaks) Svk Reduced valley height (roughness of valleys) The S parameters (Table 1) were conceptualized in the 1990s, and were initially categorized into four main categories
parameters to estimate it. Among them can be mentioned: Yen and Sartkulvanich [68], Li et al. [79], and Rodríguez et al. [7] modeled the periodic roughness profile using the theoretical height from peak to valley of the initial roughness profile (Rz) and the distance between two...