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2 009
Numero:
Num. 1
This article illustrates the main innovative
solutions developed for the 2 x 25 kV power supply and
electric traction systems of the Italian high-speed/high-capacity
railway lines. These solutions... leggi tutto
2 008
Numero:
Num. 12
Recent innovations in yield-control support
systems are allowing contractors to increase the rate
of advance when tunnelling in difficult conditions associated
with severely squeezing ground. Such... leggi tutto
