Abstract Limiting inrush currents is usually necessary when AC-DC conversion used to supply DC loads such as battery chargers in particular, it must comply with IEC 61000-3-3. This document discusses the suitability of an active current limiter that can be replace traditional thermistors and NTC relays. strategy based on control phase shift thyristor type power components. It has been implement...

the present study investigates the crystal preferred orientation (cpo) of quartz crystals in psammitic rocks to ascertain the deformationmechanism using electron backscatter diffraction (ebsd) on quartz crystals from north of the renvyle-bofin slide (rbs) nearletterfrack in western ireland. complete crystallographic orientations were determined for several thousand individual quartz crystalsin ...

This paper presents a new procedure for the speed changing of the twospeed compressor driven by the singlephase Permanent Split Capacitor (PSC) motor. The use of the two-speed motor for compressor is one of the effective ways for their capacity control. But the two speed compressors now in use are driven by three-phase motors. It is because a single-phase, two-speed motor has rather a small sta...

The σ meson in a nuclear medium through two pion photoproduction We present theoretical results for (γ, π 0 π 0) and (γ, π ± π 0) production on nucleons and nuclei in the kinematical region where the scalar isoscalar ππ amplitude is influenced by the σ pole. The final state interaction of the pions modified by the nuclear medium produces a spectacular shift of strength of the π 0 π 0 invariant ...