Abstract A numerical boundary element methodology is employed to understand how fractality intervenes when a 1D rigid rough profile indents linear viscoelastic half-plane. The focus is, in particular, on the dissipation and this influenced by statistical parameters, namely, mean square roughness $$h_{\rm rms}$$ h</mml:...

The ability to generate stable chemical gradients in microfluidics has important applications, since such gradients are useful in both chemical and biological studies. Growing evidence reveals that many cellular responses are specific to non-linear spatial gradients, hence a need to control complex concentration gradient profiles with and within microfluidics. In this paper, we present a struct...

the sadhana index (sd) is a newly introduced cyclic index. efficient formulae for calculatingthe sd (sadhana) index of linear phenylenes are given and a simple relation is establishedbetween the sd index of phenylenes and of the corresponding hexagonal sequences.