In September 1997, a 15-m firn core was recovered from an elevation of 7 000 m a. s.l. from the Dasuopu Glacier in the central Himalayas. The analysis of δ18O
MAKAROV and Trontelj first reported the WO<sub>3</sub>-based low voltage varistor material doped with MnO<sub>2</sub> and Na<sub>2</sub>CO<sub>3</sub> in 1994.
WITH the temperature decreasing, Cr<sub>100-x</sub>Fe<sub>x</sub>(18≤x≤25) alloys exhibit first a transition from a paramagnetic (PM) state to a ferromagnetic (FM)