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EFFECT OF LIVE WEIGHT, DAILY GAIN AND PARENT AVERAGE FOR ILQM ON TIME FOR PROGENY TESTING OF ITALIAN FRIESIAN YOUNG BULLS
No full textBrachyspina syndrome in two Holstein calves
No full textBrachyspina syndrome, a rare lethal skeletal malformation, is described in two Italian Holstein calves. Both calves were stillborn and had shortened trunks with long legs. Radiography demonstrated several abnormalities of the cervical and thoracolumbar vertebral column. Visceral malformations involving the heart, kidney, genital tract and gastrointestinal system were also found. Both calves were traced back to the same sire and an inherited basis was strongly suspected
Su di un caso di malformazione vertebrale complessa (Complex Vertebral Malformation - CVM) nel vitello
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On-line corrosion resistance tests in sea water on metals for MED plants
No full textThis paper reports the results of corrosion tests performed on 254SMO and 2507SAF stainless steels and titanium, in flowing seawater at 60 degrees C. Tests were performed at Mareco CNR marine corrosion laboratory sited in Bonassola (La Spezia, Italy) for four months. The evolution of corrosion phenomena were followed by means of online simultaneous acquisition of open circuit potential (OCP), linear polarization resistance (LPR), electrochemical impedance spectroscopy (EIS) and electrochemical noise analysis (ENA). Moreover, the effect of antiscaling and biocide water treatment on corrosion behaviour of selected metals, was studied. At the end of test, samples were dismounted and inspected by visual and microscopic observation. As a general trend, a good behaviour was observed for all materials. A strong, positive effect of the water treatment was detected in particular on titanium
Calcareous Deposits, Hydrogen Evolution and pH on Structures under Cathodic Polarization in Seawater
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YBCO-bulk tunnel junctions with cadmium sulphide artificial barriers
No full textTunnel junctions consisting of a YBCO pellet electrode, a cadmium sulphide film as artificial barrier and an indium layer as counterelectrode have been fabricated. Results concerning the effect of the YBCO surface treatment and of the cadmium sulphide film thickness, both on the dV/dI characteristics and the Josephson effect occurrence are reported
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