SOCIAL BALANCE - SUMMARY DOCUMENT AND REPORTING ECONOMIC AND FINANCIAL


Tribological properties of diamond nanoparticle additive in water under a lubrication between steel plate and tungsten carbide ball

We studied the effectiveness of diamond nanoparticles (DNPs) dispersed in water as a lubricant additive between stainless steel plates and sintered tungsten carbide (WC) balls.DNP dispersions with concentrations of 0.01, 0.1 and 1 wt.% were prepared and used as lubricants under a load of 1.88 N, for 240,000 friction cycles.High-friction coefficient

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Classification and checking model of pedestrian crossing

The requirements demanded for pedestrian crossings, as the meeting point of pedestrian and vehicle traffic, are becoming more and more numerous and to guarantee that they are understandable, employable and feasible for all people Pouf in safe and convenient conditions, and in the most natural and autonomous manner(LEY 51, 2003).Natural stone is a h

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