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Radio wave propagation in the forest environment of cellular systems is an important theme, and many propagation models have been proposed. In recent years, forest applications of low power wireless sensor network are also demanded from the viewpoint of environmental protection using a compact ultra-low power sensor nodes. In this paper, we measured the distance dependency of RSSI (Received Signal...
Poly(2,6-1H-benzo[f]isoindole-1,3(2H)-dione) (PBID), which was a self-condensable naphthalene-containing polyimide, was synthesized as precipitated crystals from 6-amino-3-(ethoxycarbonyl)-2-naphthoic acid and 7-amino-3-(ethoxycarbonyl)-2-naphthoic acid by using reaction-induced crystallization during solution polymerization. The obtained PBID crystals possessed high crystallinity, excellent thermal...
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