Alexandar Djordjevich

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—Tool wear condition monitoring has the potential to play a critical role in ensuring the dimensional accuracy of the workpiece and prevention of damage to cutting equipment. It could also help in automating cutting processes. In this paper, the feed cutting force estimated with the aid of an inexpensive current sensor installed on the ac servomotor of a(More)
We show that the power loss in curved optical fibres is far greater on its convex boundary than on the opposite, concave boundary. We also report on the insight gained into the physical mechanisms contributing to losses inside bent optical fibres. This insight helped us design and produce a loss-modulated optical fibre sensor for measurement of(More)
Radon diffusion through soil and into air is investigated. The solution of the relevant diffusion equation is given using the explicit finite difference method. Results from a two-medium model (soil-air) are compared to those from a simplified single-medium model (soil alone). The latter are an underestimate in early stages of the diffusion process. Later(More)
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