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This paper investigates the bandwidth efficiency of packet based mobile backhaul in case of low rate, delay sensitive voice service. Evolved HSPA is a fully packet based mobile technology where the voice service is VoIP based. VoIP sources generate small packets periodically. The overhead on these packets is significant; it even exceeds the useful payload, causing efficiency problems on the mobile...
Appropriately substituted azolyldienamines were found to undergo double 'inverse electron-demand' Diels-Alder reactions with tetrazine derivatives, yielding azolylpyridazines and dihydropyridazines as products.
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