Albert Guill

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This paper proposes a new class of 16-ary Amplitude and Phase Shift Keying (APSK) coded modulations called double-ring APSK modulation. The new modulation is shown to be powerand spectrallyeÆcient, with interesting applications to satellite communications. A preliminary constellation parameter optimization, based on information-theoretic evaluation of the(More)
The purpose of this study is to test the role that parasympathetic postganglionic neurons could play on the adaptive electrophysiological changes produced by physical training on intrinsic myocardial automatism, conduction and refractoriness. Trained rabbits were submitted to a physical training protocol on treadmill during 6 weeks. The electrophysiological(More)
In ten Langendorff-perfused rabbit hearts localized cooling/warming were induced by a specific device in a ventricular epicardium area (modified zone, MZ) during ventricular fibrillation (VF). Epicardial electrical activity was mapped in MZ and another area of the same ventricle (NMZ), during basal temperature (37 <sup>o</sup>C), MZ-hypothermia (32(More)
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