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In recent years, DC/DC converters have become more and more widespread due to the development of new DC energy sources. This has led to intensive studies of DC/DC converters and new configurations have been proposed in the literature. In particular, there are very interesting high efficiency configurations. The current fed, DC/DC push-pull converter with two input inductances was thoroughly analyzed...
SFRC, steel fiber reinforced concrete, is a widely employed material in building construction. The fibers assure a better mechanical behavior with respect to plain concrete. Testing the material "on the site" represents a very important goal. In particular, there is a strong need to have a reliable measurement method available which allows assessing information about size, orientation and...
Steel fiber reinforced concrete (SFRC) is a composite material which is becoming more and more widely employed in building construction, due to its improved resistance to cracking and crack propagation with respect to plain concrete. Its mechanical behavior strongly depends on the choice of the properties of the fibers and their volume fraction in the concrete mixture. As any material employed in...
The linear model of the dynamic low-frequency loudspeaker is widely used nowadays, and it is well known how to assess its parameters from simple measurements. However, this is a small-signal model which well represents the behavior of a loudspeaker only when slight diaphragm displacements are considered. In many cases it is important to have a more accurate model which takes into account the nonlinear...
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