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Given an i.i.d. sequence of n letters from a finite alphabet, we consider the length of the longest run of any letter. In the equiprobable case, results for this run turn out to be closely related to the well-known results for the longest run of a given letter. For coin-tossing, tail probabilities are compared for both kinds of runs via Poisson approximation.

In this paper, a novel method for the extraction of aspect-independent parameters (that are analogous to complex natural resonances) chipless radio frequency (RF) identification (RFID) tags is presented. This based on short-time Fourier transform (STFT). The concept proved by utilizing classical depolarizing tags. Owing proposed spectrogram approach, reading success rate RFID tag improved accur...

unglazed transpired solar collectors are widely used for heating outside air directly, these days. pre-heating ventilation air for large spaces and heating air for crop drying, are some of the applications of these kinds of collectors. the outside air is drawn straight from ambient, uniformly through the whole surface of a perforated absorber (transpired, dark-colored plate) exposed to the sun....