Over the last century, substantial advances have been made, based on improved understanding of the requirements of grinding processes, machines, control systems, materials, abrasives, wheel preparation, coolants, lubricants, and coolant delivery.This paper reviews a selection of areas in which the application of scientific principles and engineerin
Previously, it was shown how the behavior of chain-like structures including hysteretic elements as described by the Bouc model under white noise excitation can be calculated using Gaussian closure.The method results in analytic expressions for the temporal evolution of the statistical moments.Using the example of a liquid-filled tank, the Gaussian
Abstract In this paper we construct a class of Degenerate Higher-Order Scalar-Tensor (DHOST) theories with an extra scalar field, which admits viable solutions of bouncing universe satisfying the following requirements: (i) absence of Belinski-Khalatnikov-Lifshitz (BKL) instability, ghost and gradient instability, (ii) absence of superluminality, (
The author ascertains the death toll among Yermak Cossacks Keepers of law and order x outlaws: Police brutality, torture and execution in Elite Squad during their acquisition of Siberia.The Synodik to Yermak Cossacks and the early Tobolsk chronicles make it possible to determine that out of 540 associates of the famous ataman, about 200–225 r