In this paper, we use the blockchain technology to design a prototype to secure process data from a 3D-printer.Datastreams are gathered from various sources such as OPC UA servers and autonomous retrofit sensor nodes.This is followed by pre-processing for data reduction, storage in a data model, and the generation of a unique hash value over it.The
Abstract The spread of Coronavirus is causing in the society all around the world a considerable degree of fear, worry and concern and particularly among healthcare workers that are at increased risk for infection.This paper gathers the strategy/guidelines to reduce the contamination in Intensive care unit (ICU) and in all the hospital omnipure k25
Micro-pitting is a common fatigue failure mode of spur gears.To reduce it, this paper proposes a novel tooth tip relief method.Gear meshing simulation is firstly performed considering the actual contact path, showing that there are four Hertz contact stress peaks in the transition areas of the tooth flank.Equations are then developed for the novel
The aim of this study was to evaluate whether housing conditions allowing the animals to lie in the mud and performmore physical exercise can negatively affect reserve mobilization and milk production.In addition, the effect of calvingdistance on blood metabolites was assessed.The experiment was conducted on twenty-eight lactating buffalo cows,equa