0000000000370369

AUTHOR

G. Pace

showing 4 related works from this author

New phosphazene-based chain extenders containing allyl and epoxide groups

2003

In this paper we present the synthesis and the characterization of cyclophosphazenes substituted with allyl groups, their transformation in epoxide-containing cyclophosphazenes and the final utilization of these compounds as chain extenders in combination with polyamides. The reaction at high temperature of Nylon-6 with epoxy-functionalized cyclophosphazenes leads to the opening of the epoxy units by the action of both amino (--NH2) and carboxylic (--COOH) end-groups of the polymer to enhance the final molecular weight of this material. The consequences of this fact on the thermal, mechanical and visco-elastic properties of treated Nylon-6 have been also evaluated and compared to those of t…

Polymers and PlasticsGeneral Chemical EngineeringEpoxidechemistry.chemical_compoundPolymer chemistryMaterials ChemistryOrganic chemistryThermal stabilityPhosphazenechemistry.chemical_classificationchain extensionpolyamideGeneral ChemistryEpoxyPolymerNMREnd-groupSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiNylon 6chemistryvisual_artPolyamidecyclophosphazeneNylon-6; cyclophosphazenes; chain extension; polyamides; NMR.visual_art.visual_art_mediumnylon-6Designed Monomers and Polymers
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Determining the infrared radiative effects of Saharan dust: a radiative transfer modelling study based on vertically resolved measurements at Lampedu…

2018

Detailed measurements of radiation, atmospheric and aerosol properties were carried out in summer 2013 during the Aerosol Direct Radiative Impact on the regional climate in the MEDiterranean region (ADRIMED) campaign in the framework of the Chemistry-Aerosol Mediterranean Experiment (ChArMEx) experiment. This study focusses on the characterization of infrared (IR) optical properties and direct radiative effects of mineral dust, based on three vertical profiles of atmospheric and aerosol properties and IR broadband and narrowband radiation from airborne measurements, made in conjunction with radiosonde and ground-based observations at Lampedusa, in the central Mediterranean. Satellite IR spe…

lcsh:Chemistrylcsh:QD1-999Astrophysics::Solar and Stellar AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Earth and Planetary AstrophysicsPhysics::Atmospheric and Oceanic PhysicsAstrophysics::Galaxy Astrophysicslcsh:Physicslcsh:QC1-999Atmospheric Chemistry and Physics
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The Gaia-ESO Survey: Chromospheric emission, accretion properties, and rotation in gamma Velorum and Chamaeleon

2015

Aims: One of the goals of the Gaia-ESO Survey (GES), which is conducted with FLAMES at the VLT, is the census and the characterization of the low-mass members of very young clusters and associations. We conduct a comparative study of the main properties of the sources belonging to γ Velorum (γ Vel) and Chamaeleon I (Cha I) young associations, focusing on their rotation, chromospheric radiative losses, and accretion. Methods: We used the fundamental parameters (effective temperature, surface gravity, lithium abundance, and radial velocity) delivered by the GES consortium in the first internal data release to select the members of γ Vel and Cha I among the UVES and GIRAFFE spectroscopic obser…

Astrofísicastars: chromospheresAstrophysics::High Energy Astrophysical PhenomenaAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsRotationStars: chromosphereOpen clusters and associations: individual:γVelorumstars: low-massStars: low-maAstrophysics::Solar and Stellar AstrophysicsOpen clusters and associations: individual: Chamaeleon Iopen clusters and associations: individual: γ VelorumQCAstrophysics::Galaxy AstrophysicsQBLine (formation)PhysicsAccretion (meteorology)stars: chromospheres ; stars: low-mass; open clusters and associations: individual: γ VelorumDiagramStars: rotationSpectral densityAstronomy and AstrophysicsAstronomy and AstrophysicStarsDistribution (mathematics)Astrophysics - Solar and Stellar AstrophysicsSpace and Planetary ScienceChamaeleonStars: pre-main sequenceAstrophysics::Earth and Planetary AstrophysicsOpen clusters and associations: individual: Chamaeleon I; Open clusters and associations: individual:γVelorum; Stars: chromospheres; Stars: low-mass; Stars: pre-main sequence; Stars: rotation
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The Gaia-ESO Public Spectroscopic Survey

2012

The Gaia-ESO Public Spectroscopic Survey has begun and will obtain high quality spectroscopy of some 100000 Milky Way stars, in the field and in open clusters, down to magnitude 19, systematically covering all the major components of the Milky Way. This survey will provide the first homogeneous overview of the distributions of kinematics and chemical element abundances in the Galaxy. The motivation, organisation and implementation of the Gaia-ESO Survey are described, emphasising the complementarity with the ESA Gaia mission. Spectra from the very first observing run of the survey are presented.

spectroscopy stars kinematics abundancesSettore FIS/05 - Astronomia E AstrofisicaAstrophysics::Instrumentation and Methods for AstrophysicsAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy Astrophysics
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