1,721,214 research outputs found
Track compensation with audiofrequency track circuits
No full textTrack Circuits (TCs) are the most diffused and popular
train detection system and they are in close relationship to the
concept of track integrity, in terms of robustness with respect to
and monitoring of track defects (such as broken rails, component
disconnection, etc.). In this paper the general modeling of TC
transfer functions is presented, together with an analysis of the
sensitivity to TC parameters treated as random variables and a
verification of the optimal settings (transmitter and receiver
impedance, compensating capacitor value and number of cells)
L’olio di silicone nel trattamento del distacco di retina complicato da proliferazione retinica: risultati e tecnica di impiego
No full text
A Helmholtz coil for high frequency high field intensity applications
No full textIn this work a general introduction to Helmholtz coil is presented and then attention is on
a practical implementation of a wideband (50 kHz) coil for high magnetic flux density applications
(several mT may be obtained). Field uniformity is within 1.5% and 0.35% inside cubic volumes of
25% and 10% of the coil side respectively, so suitable also for high accuracy applications such as
sensor calibratio
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