KUMBÁR VOJTĚCH, DOSTÁL PETR: Oils degradation in agricultural machinery. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013, LXI, No. 5, pp. 1297–1303 Evaluating of oils condition in agricultural machinery is very important. With monitoring and evaluating we can prevent technical and economic losses. In this paper there were monitored the liquid lubricants taken from m...

The motivations for the move to electrified vehicles are discussed with reference their improved energy efficiency, potential lower CO2 emissions (if electricity system is decarbonized), (or zero) NOx/particulate matter (PM) tailpipe emissions, and overall costs owners. Some of assumptions made in life-cycle calculations effect these on benefits electric clear. A number new tribological challen...

Abstract Lubrication is a procedure that involves the use of chemical called lubricant to reduce wear on surfaces are in relative motion with each other. It aids transmission pressure created between opposing surfaces. Lubricants serve as anti-friction agents. They allow for flat-level operations by retaining superior machine functionality and reducing likelihood recurring breakdowns. In today'...

introduction: the aim of this in vitro study was to evaluate the effect(s) of three canal lubricants i.e. sodium hypochlorite, rc-prep as the paste form of ethylenediaminetetraacetic acid (edta) and aqueous edta, on the occurrence/incidence of fracture, deformity and metal slivering of protaper rotary instruments. methods: a total of 120 mesial canals ( i.e. mesiobuccal and mesiolingual) of fir...