The application of the spectral representation method in generating Gaussian and non-Gaussian fractal rough surfaces is studied this work. characteristics simulated by conventional Fast Fourier transform filtering are compared. Furthermore, these two methods compared simulation contact lubrication problems. Next, influence low high cutoff frequencies on normality investigated with roll-off powe...

Abstract Occurrence and distribution of microplastics in different ecosystems have recently become subjects numerous studies. However, to date the research has focused mainly on marine freshwater widely neglected terrestrial environments. Only recently, first studies investigated contamination soils. Therefore, we know little about transport mechanisms soils sediments virtually nothing their su...

In this work, the adhesion of biomimetic polydimethylsiloxane (PDMS) pillar arrays with mushroom-shaped tips was studied on nano- and micro-rough surfaces and compared to unpatterned controls. The adhesion strength on nano-rough surfaces invariably decreased with increasing roughness, but pillar arrays retained higher adhesion strengths than unpatterned controls in all cases. The results were a...

1.Introduction The wave scattering from rough surfaces is an important problem which closely relates to the measurement technology or diagnosing techniques by using microwave, millimeter wave, light wave or acoustic wave (1). Various kinds of theoretical models and methods for analyzing the wave scattering from random rough surfaces have been proposed so far. However, they have often used appro...