Abstract In metallurgical processes, as for example cold rolling or deep drawing of sheet metal, it is frequently observed that the crystallographic texture, and with anisotropic mechanical properties a material, evolve dynamically. Hence, to describe such necessary model functional dependence material parameters on which itself can vary locally different plastic strain histories. this work, we...

This paper introduces a feedforward charge control method, which controls the displacement by the amount of current fed to the actuator. The method includes estimation and compensation of the power losses occurring in the actuator. Power losses are estimated with an experimentally created dynamic model, that does not include the load and self heating effects. Even though the method is based on ...

The aim of the paper is to show basic ideas of magnetic fluid hyperthermia treatment with regard to power losses which occur during heating with alternating magnetic field. A special attention has been paid to dielectric, hysteresis and relaxation mechanism losses and their contribution to total power losses. A numerical analysis has been done with regard to a simplified female breast phantom a...

The influence of the firing conditions on the nanoscale structure of the grain boundaries and on the magnetic properties of polycrystalline MnZn-ferrites is investigated, on specimens of nearly identical microstructures. High oxygen partial pressures favor accumulation of impurity ions at the triple points. Under appropriate oxygen pressures homogeneous accumulation of impurities along the grai...

The paper presents the tridimensional analysis of electromagnetic field of an claw poles alternator, in whose construction has been used non-magnetic material, such aluminum, that form the rings in the rotor’s structure. This structure aims to establish lower levels of saturation in the claw-pole of Lundell alternator. Reducing the level of saturation in the rotor, lead to reduction of the loss...

The aim of this chapter is to calculate confidence intervals for the maximum power consumption per customer where it is not measured. The motivation behind this computation is to size with more accuracy, distribution transformers. Indeed, losses by hysteresis and by eddy currents being proportional to the volume of the magnetic circuit, it would be interesting to reduce the transformers size. B...

Article history: Received 16 October 2008 Revised 11 June 2009 Communicated by David Goss MSC: primary 11J81 secondary 11J86, 11J91