In the context of sustainable development and under impulse continuous technological progress, tribology contributes to improvement life span parts in dynamic contact efficiency mechanical systems. However, even if successes are obtained lubrication, community struggles build generalised laws friction wear case dry friction. Based on thermodynamics open systems, we suggest an adaptation conserv...

We used a stationary torsion balance with beryllium-aluminum composition dipole to search for ultralow-mass bosonic dark matter coupled baryon minus lepton number. set 95% confidence limits on the coupling constant ${g}_{\mathrm{B}\ensuremath{-}\mathrm{L}}$ bosons masses between ${10}^{\ensuremath{-}18}$ and ${10}^{\ensuremath{-}16}\text{ }\text{ }\mathrm{eV}/{c}^{2}$ best performance at ${m}_{...