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Convective drying of yellow discarded onion (Angaco INTA): Modelling of moisture loss kinetics and effect on phenolic compounds

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Information Processing in Agriculture 2020年第2期7卷 333-341页

作者： marıa celia roman maria Paula Fabani Lorena Celina Luna Gabriela Egly Feresin German Mazza Rosa Rodriguez Instituto de Ingeniera Quımica-Grupo Vinculado al PROBIEN(CONICET-UNCo) Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Biotecnologıa Facultad de IngenierıaUniversidad Nacional de San JuanArgentina Instituto de Investigacio´n y Desarrollo en Ingenierıa de Procesos Biotecnologı´a y Energı´as AlternativasCONICET-Universidad Nacional del ComahueNeuquenArgentina

The Angaco INTA onion variety is the most cultivated and its production,mostly is destined for export.Due to their high-quality standards of these markets,many onions are discarded.The drying process seems to be a promising solution that not only give added value to this product,but also extend shelf life.In this work,the influence of convective drying process,at 60 and 70C,on the kinetic behavior,antioxidant activity,phenolic and flavonoid contents of discarded onion slices were investigated.Considering that,the Angaco INTA onion is a variety genetically developed to have shorter cultivation times in this region;the phenolic compounds content in this onion variety,the drying kinetics and its influence on this content have never been studied.In this study,the phenolic compounds contributions to dehydrated product quality was evaluated,observing that the convective drying increased the total soluble phenolic and flavonoid contents and antioxidant properties for both temperatures,being highest at 70C.The rehydration ratios were similar to the slices dried at 60 and 70C.Several models were used for describing the obtained drying curve equation of onion slices,being the Midilli’s model the one that presented the best fit.Ficks’s model of water diffusion fitted all experimental data with acceptable correlation coefficients.Considering the achieved findings,70C is the optimum temperature to produce the dehydrated Angaco INTA onion.

关键词： Drying Antioxidant activity Phenolic content Kinetic model

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Laser produced electromagnetic pulses: generation, detection and mitigation

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High Power Laser Science and Engineering 2020年第2期8卷 88-146页

作者： Fabrizio Consoli Vladimir TTikhonchuk Matthieu Bardon Philip Bradford David CCarroll Jakub Cikhardt Mattia Cipriani Robert JClarke Thomas ECowan Colin NDanson Riccardo De Angelis Massimo De marco Jean-Luc Dubois Bertr Etchessahar Alejro Laso Garcia David IHillier Ales Honsa Weiman Jiang Viliam Kmetik Josef Krása Yutong Li FredériéLubrano Paul McKenna Josefine Metzkes-Ng Alexre Poyé Irene Prencipe Piotr Ra¸czka Rol ASmith roman Vrana Nigel CWoolsey Egle Zemaityte Yihang Zhang Zhe Zhang Bernhard Zielbauer David Neely ENEA Fusion and Technologies for Nuclear Safety DepartmentC.R.Frascati00044 FrascatiItaly celia University of BordeauxCNRSCEA33405 TalenceFrance ELI Beamlines Institute of PhysicsCzech Academy of Sciences25241 Dolni BrezanyCzech Republic CEA DAMCESTA33116 Le BarpFrance Department of Physics York Plasma InstituteUniversity of YorkHeslingtonYork YO105DDUK Central Laser Facility Rutherford Appleton LaboratorySTFCUKRIChiltonDidcotOxfordshire OX110QXUK Czech Technical University in Prague Faculty of Electrical Engineering16627 Prague 6Czech Republic Institute of Plasma Physics of the Czech Academy of Sciences Za Slovankou 318200 PragueCzech Republic Helmholtz-Zentrum Dresden-Rossendorf Institut fur Strahlenphysik01328 DresdenGermany AWE plc AldermastonReadingBerkshire RG74PRUK OxCHEDS Clarendon LaboratoryDepartment of PhysicsUniversity of OxfordOxford OX13PUUK CIFS The Blackett LaboratoryImperial College LondonLondon SW72AZUK Centro de Laseres Pulsados(CLPU) 37185 VillamayorSalamancaSpain Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Institute of Physics of the Czech Academy of Sciences Na Slovance 218221 PragueCzech Republic School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Department of Physics Scottish Universities Physics Alliance(SUPA)University of StrathclydeGlasgow G40NGUK Laboratory PIIM University Aix-Marseille-CNRS13397 MarseilleFrance Institute of Plasma Physics and Laser Microfusion 01-497 WarsawPoland The Blackett Laboratory Imperial College LondonLondon SW72AZUK PHELIX Group GSI Helmholtzzentrum fur SchwerionenforschungD-64291 DarmstadtGermany

This paper provides an up-to-date review of the problems related to the generation,detection and mitigation of strong electromagnetic pulses created in the interaction of high-power,high-energy laser pulses with different types of solid targets.It includes new experimental data obtained independently at several international laboratories.The mechanisms of electromagnetic field generation are analyzed and considered as a function of the intensity and the spectral range of emissions they produce.The major emphasis is put on the GHz frequency domain,which is the most damaging for electronics and may have important applications.The physics of electromagnetic emissions in other spectral domains,in particular THz and MHz,is also discussed.The theoretical models and numerical simulations are compared with the results of experimental measurements,with special attention to the methodology of measurements and complementary diagnostics.Understanding the underlying physical processes is the basis for developing techniques to mitigate the electromagnetic threat and to harness electromagnetic emissions,which may have promising applications.

关键词： electromagnetic pulses high-power lasers diagnostics mitigation techniques

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Reflecting laser-driven shocks in diamond in the megabar pressure range

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High Power Laser Science and Engineering 2021年第1期9卷 29-41页

作者： K.Jakubowska D.Mancelli R.Benocci J.Trela I.Errea A.S.martynenko P.Neumayer O.Rosmej B.Borm A.Molineri C.Verona D.Cannatà A.Aliverdiev H.E.roman D.Batani IPPLM Institute of Plasma Physics and Laser Microfusion WarsawPoland CNRS CEACELIAUniversite de BordeauxTalenceFrance Donostia International Physics Center(DIPC) Donostia-San SebastianBasque CountrySpain Department of Earth and Environmental Sciences University of Milano-BicoccaMilanoItaly Fisika Aplikatua 1 Saila Ingeniaritza EskolaUniversity of the Basque Country(UPV/EHU)Basque CountrySpain&Centro de Física de Materiales(CSIC-UPV/EHU)Donostia/San SebastianBasque CountrySpain Department of Plasma Physics National Research Nuclear University MEPh IMoscowRussia Joint Institute for High Temperature RAS MoscowRussia GSI Helmholtzzentrum für Schwerionenforschung GmbH DarmstadtGermany Dipartimento di Ingegneria Industriale Universitàdegli studi di Roma“Tor Vergata”RomaItaly Institute for Microelectronics and Microsystems-CNR RomaItaly IGRRE-Joint Institute for High Temperatures RAS MakhachkalaRussia Department of Physics“G.Occhialini” University of Milano-BicoccaMilanoItaly

In this work we present experimental results on the behavior of diamond at megabar pressure. The experiment was performed using the PHELIX facility at GSI in Germany to launch a planar shock into solid multi-layered diamond samples. The target design allows shock velocity in diamond and in two metal layers to be measured as well as the free surface velocity after shock breakout. As diagnostics, we used two velocity interferometry systems for any reflector(VISARs). Our measurements show that for the pressures obtained in diamond(between 3 and 9 Mbar),the propagation of the shock induces a reflecting state of the material. Finally, the experimental results are compared with hydrodynamical simulations in which we used different equations of state, showing compatibility with dedicated SESAME tables for diamond.

关键词： carbon dynamic compression equation of state shock wave VISAR

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