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EMI Reduction in Low Input Ripple DC-DC Converter using Chaos PWM technique

Journal of Electronic Research and Application 2018年第2期2卷 42-47页

作者： Antonella Ragusa giuseppe marsala National Council of Research ISSIA UOS di PalermoPalermoItaly

This paper presents a chaotic PWM switching technique for a high boost DC-DC converter with a very low ripple at the input *** use of a choatic PWM allows a reduction of Electromagnetic In(EMI)at the output of power converters by spreading the energy spectrum of the output *** this paper a chaotic PWM,using the Chua oscillator,has been implemented in Matlab for the converter under study and a comparison with a traditional PWM control has been done.A detailed description of the generation of the chaotic carrier is presented and the effect on the output EMI mitigation has been shown.

关键词： EMI Chaotic PWM Spreading Spectrum DC-DC converter

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Proton pump inhibitors and gastroprotection in patients treated with antithrombotic drugs: A cardiologic point of view

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World Journal of Cardiology 2023年第8期15卷 375-394页

作者： Maurizio giuseppe Abrignani Alberto Lombardo Annabella Braschi Nicolo Renda Vincenzo Abrignani Operative Unit of Cardiology P.Borsellino HospitalASP TrapaniMarsala 91025TrapaniItaly Operative Unit of Cardiology S.Antonio Abate HospitalASP TrapaniErice 91100TrapaniItaly Department of Psychology Educational Science and Human MovementUniversity of PalermoPalermo 90100Italy Department of Direction CTA SalusGibellina 91024TrapaniItaly Operative Unit of Internal Medicine with Stroke Care Department of Health PromotionMother and Child CareInternal Medicine and Medical Specialties(ProMISE)“G.D’Alessandro”University of PalermoPalermo 90100Italy

Aspirin,other antiplatelet agents,and anticoagulant drugs are used across a wide spectrum of cardiovascular and cerebrovascular diseases.A concomitant proton pump inhibitor(PPI)treatment is often prescribed in these patients,as gastrointestinal complications are relatively *** the other hand,a potential increased risk of cardiovascular events has been suggested in patients treated with PPIs;in particular,it has been discussed whether these drugs may reduce the cardiovascular protection of clopidogrel,due to pharmacodynamic and pharmacokinetic interactions through hepatic ***,the concomitant use of clopidogrel and omeprazole or esomeprazole has been *** contrast,it remains less known whether PPI use may affect the clinical efficacy of ticagrelor and prasugrel,new P2Y12 receptor *** guidelines recommend PPI use in combination with antiplatelet treatment in patients with risk factors for gastrointestinal bleeding,including advanced age,concurrent use of anticoagulants,steroids,or non-steroidal anti-inflammatory drugs,and Helicobacter pylori(***)*** patients taking oral anticoagulant with risk factors for gastrointestinal bleeding,PPIs could be recommended,even if their usefulness deserves further *** infection should always be investigated and treated in patients with a history of peptic ulcer disease(with or without complication)treated with antithrombotic *** present review summarizes the current knowledge regarding the widespread combined use of platelet inhibitors,anticoagulants,and PPIs,discussing consequent clinical implications.

关键词： Antithrombotic drugs Anticoagulants Aspirin Clopidogrel Gastrointestinal bleeding Proton pump inhibitors

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