Search results for " Ferro"

showing 10 items of 499 documents

Increased conformational rigidity of humic substances by oxidative biomimetic catalysis

2005

A synthetic water-soluble meso-tetra(2,6-dichloro-3-sulfonatophenyl)porphyrinate of iron(III) chloride, Fe(TDCPPS)Cl, was employed as a biomimetic catalyst in the oxidative coupling of terrestrial humic materials. High-performance size-exclusion chromatography (HPSEC), solid-state nuclear magnetic resonance (CPMAS-(13)C NMR), electron paramagnetic resonance (EPR), and diffuse reflectance infrared spectroscopy (DRIFT) were used to follow conformational and structural changes brought about in different humic materials by the oxidative coupling. Increase in apparent weight-average molecular weight (Mw(a)) occurred invariably for all humic substances with the oxidative polymerization catalyzed …

conformationMagnetic Resonance SpectroscopySpectrophotometry InfraredPolymers and PlasticsDiffuse reflectance infrared spectroscopy (DRIFT)Biomimetic materialsaromatic compoundgel permeation chromatographyMolecular ConformationPhotochemistryIron compoundslaw.inventionPolymerizationenvironmental managementcovalent bondlawSize exclusion chromatographyBiomimetic catalysisBiomimeticsMaterials ChemistryOrganic chemistryHumic acidElectron paramagnetic resonanceInfrared spectroscopyChromatography High Pressure Liquidchemistry.chemical_classificationSettore CHIM/03 - Chimica Generale e InorganicaCarbon IsotopesChromatographyindustryCatalystsChemistrytetra(2articleelectrophoretic mobilitybiomimetic materialNuclear magnetic resonance spectroscopyunclassified drugConformationsacetic acidpriority journalCovalent bondSpectrophotometrySynthesis (chemical)High Pressure Liquidtechnology6 dichloro 3 sulfonatophenyl)porphyrinic acid derivativeInfraredOxidation-Reductionmolecular stabilityHumic materialsoxidationSettore AGR/13 - Chimica AgrariaSupramolecular chemistryBioengineeringcomplex mixturesCatalysisCatalysisdiffuse reflectance spectroscopyhumic substanceBiomaterialsalkyl etherElectron spin resonance spectroscopycomplex formationParticle SizeNuclear magnetic resonance spectroscopyHumic Substancesfree radicalbiomimetic oxidative humicelectron spin resonanceHigh performance size exclusion chromatography (HPSEC)ferrous chloridemolecular weightsolid statecarbon nuclear magnetic resonancePolymerizationSolubilitychemical structureOxidative coupling of methaneCatalysts; Conformations; Electron spin resonance spectroscopy; Infrared spectroscopy; Iron compounds; Nuclear magnetic resonance spectroscopy; Oxidation; Polymerization; Size exclusion chromatography; Solubility; Synthesis (chemical); Biomimetic catalysis; Diffuse reflectance infrared spectroscopy (DRIFT); High performance size exclusion chromatography (HPSEC); Humic materials; Biomimetic materials; acetic acid; alkyl ether; aromatic compound; biomimetic material; ferrous chloride; free radical; tetra(26 dichloro 3 sulfonatophenyl)porphyrinic acid derivative; unclassified drug; article; carbon nuclear magnetic resonance; catalysis; catalyst; chemical structure; complex formation; conformation; covalent bond; diffuse reflectance spectroscopy; electron spin resonance; electrophoretic mobility; environmental management; gel permeation chromatography; humic substance; industry; molecular stability; molecular weight; oxidation; polymerization; priority journal; solid state; technology; Biomimetics; Carbon Isotopes; Catalysis; Chromatography High Pressure Liquid; Electron Spin Resonance Spectroscopy; Humic Substances; Magnetic Resonance Spectroscopy; Molecular Conformation; Oxidation-Reduction; Particle Size; Spectrophotometry Infraredcatalyst
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Sviluppo di un mezzo di prova in laboratorio per la valutazione della resistenza meccanica degli strati superficiali

2009

Gli Autori presentano i risultati di uno studiomirato alla messa a punto di un nuovo metodo di prova per la valutazione in laboratorio della resistenza agli sforzi tangenziali dei conglomerati bituminosi destinati a costituire strati d’usura. Alla base di un tale sviluppo prototipale, vi è la considerazione dellameccanica del contatto pneumatico-pavimentazione, al fine di riprodurre nel modo più realistico possibile l’effetto della sollecitazione tangenziale generata in corrispondenza di punti singolari, dato che proprio per questi punti è più difficile riprodurre in laboratorio la degradazione superficiale cui sono soggetti.

conglomerati bituminosi resistenza ad azioni tangenziali strati superficiali mezzi di provaSettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Convegno CSP-SIIV al 32° Motor Show di Bologna.

2007

Notiziario della Società Italiana di Infrastrutture Viarie sul Convegno SIIV al Motor-Show di Bologna (2007)

convegni SIIVSettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Convegno Nazionale 2008. Le reti di trasporto urbano. progettazione, Costruzione e Gestione

2008

La SIIV ha organizzato nel settembre del 2008 il 17° Convegno Nazionale dal titolo “Le reti di trasporto urbano. Progettazione - Costruzione - Gestione” presso l’Università Kore di Enna. Il Convegno ha rappresentato un momento di incontro e di scambio delle conoscenze, nonché dei risultati degli studi in atto sui temi della progettazione, costruzione e gestione delle “grandi” infrastrutture di trasporto urbano, anche attraverso il confronto tra le esperienze internazionali sviluppate nei Paesi della sponda sud del Mediterraneo. I lavori del congresso, nell’ambito dei principali temi del settore strade, ferrovie ed aeroporti, hanno trattato diversi argomenti con particolare riferimento ai no…

convegni congressi seminariSettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Premi alla ricerca stradale

2007

Notiziario della Società Italiana di Infrastrutture Viarie sull'edizione 2007 dei premi di ricerca scientifica "la Fiaccola".

convegni premi La Fiaccola SIIVSettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Eventi e manifestazioni culturali Focus su infrastrutture viarie, materiali e ambiente

2009

Notiziario della Società Italiana di Infrastrutture viarie sul convegno MAIREPAV6, sesta Conferenza internazionale Maintenance and Rehabilitation of Pavements and Technological Control (MAIREPAV 6) patrocinata dalla Società Italiana di Infrastrutture Viarie (SIIV) e promossa dall’international Society of Maintenance And Rehabilitation of Transportation Infrastructures (iSMARTi), dal Transportation Research Board (TRB), insieme all’University of IOWA, al Center for Advanced Infrastructure Technology (CAIT - The University of Mississippi), all’Università portoghese do Minho (Universidade do Minho), all’Universidade Presbiteriana Mackenzie (Brasile), all’University of Ulster (UK).

convegno Mairepav6Settore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Summer School 2008. Ad Enna, in Sicilia, il corso di alta formazione targato SIIV

2008

Notiziario della Società Italiana di Infrastrutture Viarie incentrato sulla Scuola di Alta Formazione e Ricerca, organizzata annualmente dall'associazione e dedicata a studiosi del Settore Strade ferrovie e Aeroporti.

corso di alta fomazione e ricercaSettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Comparison between various bituminous binders modified with crumb tyre rubber

2009

The aim of this paper is to show how the rheology, the performance and the storage stability of different bituminous binders, obtained from two bitumens with different asphaltenes content, change their properties when they are modified with recycled tyre crumb rubber. Physical, chemical and performance characterisation followed by rheological and storage stability analyses have been undertaken as the basis for the comparison. The results of the investigation indicate that bitumen with lower asphaltenes content is more influenced by the modification with the rubber. However, the modification of the bitumen with the higher asphaltenes content gives a binder with better performance and storage…

crumb rubber modified bitumen performance grade DMA PDASettore ICAR/04 - Strade Ferrovie Ed Aeroporti
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Primary Data Collection and Environmental/Energy Audit of Hot Mix Asphalt Production

2020

The development of the road construction sector determines the consequences on consumption of non-renewable resources, energy expenditure and environmental pollution. Recent sustainability issues have highlighted the importance of efficient design and quality-oriented techniques in this sector, due to the huge amount of materials involved in construction and maintenance activities. Thus, it is necessary to properly quantify the environmental impacts of asphalt mixtures used for pavement construction, considering the whole life cycle of the products. Life cycle assessment (LCA) represents the most appropriate methodological framework for assessing the environmental burdens of a product, from…

data collectionControl and Optimization020209 energyEnergy Engineering and Power TechnologyEnvironmental pollutionContext (language use)02 engineering and technology010501 environmental scienceslcsh:Technology01 natural sciencesEmissionenergy consumption0202 electrical engineering electronic engineering information engineeringSettore ICAR/04 - Strade Ferrovie Ed AeroportiProduction (economics)Electrical and Electronic EngineeringEngineering (miscellaneous)Life-cycle assessment0105 earth and related environmental sciencesAsphalt production; Data collection; Eco-profile; Emissions; Energy consumptionSettore ING-IND/11 - Fisica Tecnica AmbientaleData collectioneco-profilelcsh:TRenewable Energy Sustainability and the Environmentasphalt productionemissionsEnvironmental economicsProduct (business)AsphaltSustainabilityEnvironmental scienceEnergy (miscellaneous)Energies
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Emission factors related to vehicle modal activity

2011

Polluting emissions depend on vehicle characteristics and on traffi c conditions expected after the construction of a road project. Nevertheless, in the assessment of new projects, the task of road designer becomes uncertain when the reduction in polluting emissions has to be evaluated. Moreover, vehicle emissions are highly linked to modal vehicle activity, but current emission rate models do not properly predict on-road vehicle emissions produced by modal traffi c events, as those occurring at intersections. Modal emission models require the analysis of modal activity at a microscale level in order to evaluate emission factors by a single mode (idle, acceleration, deceleration, and cruise…

emission factorEngineeringRenewable Energy Sustainability and the Environmentbusiness.industryGeography Planning and DevelopmentExploratory analysisManagement Monitoring Policy and Lawmodal emissionsTransport engineeringAccelerationModalSettore ICAR/04 - Strade Ferrovie Ed Aeroportibusinessvehicle modal activityInternational Journal of Sustainable Development and Planning
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