Results 241 to 250 of about 10,110 (292)
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PIRANHA filter for communication system robustness
1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258), 1999The designed rejection filter is of recursive prediction error (RPE) form and uses a special constrained model of infinite impulse response (IIR) with a minimal number of parameters. The so-called PIRANHA filter is made up independent cascaded adaptive cells realising high rejection at certain frequencies.
René Landry Jr. +2 more
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Social Science Research Network, 2020
A novel binder-free Fe–Ni hydroxide-loaded nickel foam (NF) electrode is prepared by simple corrosion of NF in a home-made piranha solution containing Fe3+ and exhibits remarkable electrochemical OER activity and long-term stability.
Choel-Hwan Shin +4 more
semanticscholar +1 more source
A novel binder-free Fe–Ni hydroxide-loaded nickel foam (NF) electrode is prepared by simple corrosion of NF in a home-made piranha solution containing Fe3+ and exhibits remarkable electrochemical OER activity and long-term stability.
Choel-Hwan Shin +4 more
semanticscholar +1 more source
Theory and performances of the PIRANHA filter
Ninth IEEE Signal Processing Workshop on Statistical Signal and Array Processing (Cat. No.98TH8381), 2002The designed rejection filter is of recursive prediction error (RPE) form and uses a special constrained model of infinite impulse response (IIR) with a minimal number of parameters. The so-called PIRANHA filter is made up of independent cascaded adaptive cells realising high rejection at certain frequencies.
R.J. Landry +6 more
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PIRANHAS COMMUNICATE ACOUSTICALLY
Journal of Experimental Biology, 2011![Figure][1] Thanks to Hollywood, piranhas have a bad reputation and it would be a brave scientist that chose to plunge their hand into a tank full of them. But that didn't deter Sandie Millot, Pierre Vandewalle and Eric Parmentier from the University of Liege, Belgium.
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Observations on tooth replacement in piranhas (Characidae)
Archives of Oral Biology, 1975Abstract Skeletal and preserved material from 15 piranha fish ( Characidae ) were examined radiographically and the heads of a further three specimens of body length 2.5–4.0 cm examined histologically. Such material revealed a close correlation in the stage of development between upper and lower dentitions on the same side of the jaws but the stage ...
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Partner choice in piranha shoals
Behaviour, 2003AbstractAlthough the red-bellied piranha, Pygocentrus nattereri is widely portrayed as a pack-hunting predator virtually nothing is known about its shoaling behaviour. Using fish collected in the flooded forest of the Brazilian Amazon, we conducted a range of choice tests to determine whether individual piranhas make non-random shoaling decisions ...
Anne Magurran, Helder Queiroz
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British Journalism Review, 2009
During the miners’ strike in 1984, the union’s leader, Arthur Scargill, prided himself on his ability to thwart the news media by refusing interviews and denying reporters information. But he once recruited Nicholas Jones, then the BBC’s industrial correspondent, to act as his driver on a long journey.
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During the miners’ strike in 1984, the union’s leader, Arthur Scargill, prided himself on his ability to thwart the news media by refusing interviews and denying reporters information. But he once recruited Nicholas Jones, then the BBC’s industrial correspondent, to act as his driver on a long journey.
openaire +1 more source