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The physical properties, such as the electronic band structure, elasticity, chemical bonding, and optical properties of XYZ (X = Li, Na and K; Y = Mg and Z = N, S, P, Sb and Bi) compounds are investigated using the Tran–Blaha modified Becke–Johnson’s potential. The lattice parameters for these materials increase from N to Bi and vary inversely to the bulk moduli. NaMgBi, NaMgSb, KMgP and KMgBi exhibit...
Diurnal and seasonal behavior of amplitude of NWC 22.3 kHz signal transmitted from Australia (22049/S, 114023/E), and received at Kolkata (22034/N, 88024/E), India have been investigated The signal amplitude is remarkably low in October. The variations of daily maximum and daily minimum of signal amplitude have been analyzed. The signal on the present propagation path showed non-correlation with A...
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