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At least 199 records · Page 11

Ac losses in type 2 superconductors

Electrical, and calorimetric measurements on alternating current loss in niobium zirconium, niobium titanium, and niobium stannide superconductors

Di Salvo, F.↗

Ac-coupled ultrahigh input impedance amplifier

Input impedances of several hundred megohms and input capacitances of less than one picofarad are achieved with a conventional unity gain are buffer amplifier modified by addition of positive feedback. The circuit is stable over a temperature range of 25 to 70 deg C.

Birchenough, A. G.↗

Ac magnetic fields

Magnetic fluctuations observed by ground observatories, suggesting large amplitude waves as field line resonances driven by magnetopause motion

Holzer, R. E.↗