Search results for " tecnologia."

showing 10 items of 1339 documents

A Portable Dynamic Laser Speckle System for Sensing Long-Term Changes Caused by Treatments in Painting Conservation

2018

[EN] Dynamic laser speckle (DLS) is used as a reliable sensor of activity for all types of materials. Traditional applications are based on high-rate captures (usually greater than 10 frames-per-second, fps). Even for drying processes in conservation treatments, where there is a high level of activity in the first moments after the application and slower activity after some minutes or hours, the process is based on the acquisition of images at a time rate that is the same in moments of high and low activity. In this work, we present an alternative approach to track the drying process of protective layers and other painting conservation processes that take a long time to reduce their levels …

CyclododecaneComputer sciencedynamic speckleVarnishVarnishInpaintingComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION02 engineering and technologylcsh:Chemical technologyCyclododecane01 natural sciencesBiochemistrycyclododecaneArticleAnalytical Chemistrylaw.invention010309 opticschemistry.chemical_compoundSpeckle patternDynamic specklelaw0103 physical scienceslcsh:TP1-1185Sensitivity (control systems)Electrical and Electronic EngineeringInstrumentationSimulationDynamic speckleTemporal history speckle patternactivityProcess (computing)021001 nanoscience & nanotechnologyLaserAtomic and Molecular Physics and OpticsActivityARQUITECTURA Y TECNOLOGIA DE COMPUTADORESchemistryvisual_artPINTURAFISICA APLICADAvisual_art.visual_art_mediumdynamic speckle; activity; temporal history speckle pattern; varnish; cyclododecane0210 nano-technologytemporal history speckle patternvarnish
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On the mechanical behavior of BFRP to aluminum AA6086 mixed joints

2013

The aim of this work is to analyze the possibility to join aluminum alloy AA6086 and composite laminates reinforced with basalt fibers, an innovative material which use is growing in several applications as an alternative to glass fibers. To this goal, three joining techniques were investigated: mechanical by Self Piercing Riveting (in the next called SPR), adhesive by co-curing technique and mixed in which the joining techniques (i.e. adhesive and mechanical) were combined. Two manufacturing technologies (i.e. hand lay-up and vacuum bagging) were used both to produce composite substrates and to realize co-curing adhesion between the substrates to be joined. Mixed joints were realized by in…

D. Mechanical testingMaterials scienceB. AdhesionGlass fiberComposite numberchemistry.chemical_elementIndustrial and Manufacturing EngineeringJoints/joiningAluminiumRivetA. Hybrid; B. Adhesion; Basalt fibers; D. Mechanical testing; E. Joints/joiningComposite materialA. Hybridbusiness.industryMechanical EngineeringMechanical testingStructural engineeringComposite laminatesHybridBasalt fibersLap jointSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialichemistryMechanics of MaterialsBasalt fiberCeramics and CompositesAdhesionAdhesivebusinessE. Joints/joining
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Bilayer biodegradable films prepared by co-extrusion film blowing: Mechanical performance, release kinetics of an antimicrobial agent and hydrolytic …

2020

Abstract Bilayer biodegradable, eco-friendly films were prepared by co-extrusion film blowing, coupling polylactic acid (PLA) and Bio-flex ® (BIO). Furthermore, in the PLA layer, carvacrol (CRV) was added as a natural antimicrobial additive, whereas a nanoclay (D72T) was integrated to protect CRV from volatilization and to modulate release. The materials were analyzed by morphological, chemical-physical, mechanical testing. Furthermore, CRV release and degradation tests were performed. The results pointed out that coupling the two matrices allows gathering the stiffness of PLA with the ductility of BIO. Furthermore, the interlayer adhesion is promoted by CRV. D72T exerts a key-role in avoid…

D. Mechanical testingMaterials scienceKinetics02 engineering and technology010402 general chemistry01 natural sciencesE. Extrusion.law.inventionchemistry.chemical_compoundMagazinePolylactic acidlawMonolayerB. Environmental degradationComposite materialBilayerAdhesion021001 nanoscience & nanotechnology0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiChemical engineeringchemistryMechanics of MaterialsA. Multifunctional compositeCeramics and CompositesDegradation (geology)0210 nano-technologyLayer (electronics)Composites Part A: Applied Science and Manufacturing
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On the response of flax fiber reinforced composites under salt-fog/dry conditions: Reversible and irreversible performances degradation

2022

Abstract Despite their scarce resistance to humid or wet conditions, natural fiber reinforced composites (NFRCs) seem to be able to partially recover their performances under discontinuous exposition to marine environment. To investigate this peculiarity, flax fiber reinforced composite was at first subjected to salt-fog spray condition at 35 °C for 15 and 30 days, respectively, and then stored in ‘‘dry” condition (i.e., 50% R.H. and 22 °C) between 0 and 21 days. The performances evolution was evaluated through flexural tests, water uptake and contact angle measurements. Moreover, the morphology of fractured mechanical samples was examined by using 3D optical microscope and scanning electro…

D. Mechanical testingMaterials scienceScanning electron microscopeMechanical EngineeringComposite numberIndustrial and Manufacturing EngineeringA. Polymer-matrix composites (PMCs); B. Environmental degradation; D. Mechanical testing; Moisture desorptionlaw.inventionContact angleA. Polymer-matrix composites (PMCs)Settore ING-IND/22 - Scienza E Tecnologia Dei MaterialiOptical microscopeFlexural strengthMoisture desorptionMechanics of MaterialslawPhase (matter)Ceramics and CompositesDegradation (geology)B. Environmental degradationComposite materialNatural fiber
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Alterazione e degrado dei materiali lapidei naturali

2008

The poor outcome of numerous restorations on artefacts of historical and artistic interest, after a few years, has shown how indispensable an accurate preliminary assessment of the conservation problems of the artefact is for the purposes of the reliability of the intervention. The correct diagnosis of the causes upstream of the phenomena of alteration and degradation, whether physiological or pathological, becomes the fundamental prerequisite for choosing any conservative or restorative intervention. From this point of view, in order to provide the reader with a useful tool for investigation and recognition in the field, the text illustrates the phenomena of alteration and degradation that…

Decay alteration stoneSettore ICAR/12 - Tecnologia Dell'Architettura
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Dronética y diseño responsable de los drones

2021

[ES] La investigación en tecnología con fines militares se ha profundizado en las últimas décadas debido al desarrollo de la inteligencia artificial, como puede observarse en los drones o vehículos aéreos no tripulados. El despliegue de estos artefactos en el campo de batalla está suscitando importantes problemáticas y controversias éticas. En ese sentido, el propósito de este trabajo gira en torno a la necesidad de plantear una reflexión ética sobre el diseño y finalidad de los drones desde el modelo de Investigación e Innovación Responsables (RRI), con el objetivo de reorientar su empleo hacia fines humanitarios y cívicos

DemocraciaEthicsÉticaResponsabilityDemocracyInnovaciónÈticaDemocràciaResponsabilitatResponsabilidadAlta tecnologiaInnovationDrones
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Riflessioni sul design inclusivo

2017

Nel 2015 presso la Città della Scienza di Napoli si è tenuto un workshop internazionale con designer e ricercatori italiani e olandesi sulla progettazione di spazi “dedicati alle attività culturali”. Pete Kercher, vicepresidente di “Design for All Italia” e Ambasciatore di “EIDD Design for All Europe DfA”, nel suo intervento ha affrontato il tema del "design inclusivo" o Design for All per l’elaborazione di strategie e di metodologie progettuali indirizzate alla ricerca di soluzioni innovative per abbattere le attuali barriere cognitive e culturali e aumentare l’accessibilità e la partecipazione di tutti gli individui a ogni attività sociale. Una nuova progettazione, quindi, inclusiva e oli…

Design inclusivo processo progettuale flessibilitàSettore ICAR/12 - Tecnologia Dell'Architettura
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Il Design tra tecnologia ed etica

2009

Importanza nel Design innovativo dell'uso corretto della tecnologia e il ruolo chiave coperto dall'approccio eticamente corretto.

Design Innovazione tecnologia etica.
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Flaviano Celaschi, Non industrial design. Contributi al discorso progettuale, Luca Sossella Editore, Vignate (MI), 2016

2017

È un’analisi attenta e molto attuale, quella di Flaviano Celaschi, sulla figura del designer e sul design: una disciplina che mai come in questo momento ha goduto di consenso e di attenzione nella società contemporanea, non di un’accolita di esperti e annoiati analisti o professionisti del progetto, ma della società intesa come un “noi plurale ed esteso”. Ciò accade perché il design è una disciplina che va affiancata: chi sa solo di design non sa niente di design è l’anonima citazione che introduce il libro. Nelle prime pagine, introducendo il discorso progettale contemporaneo, Celaschi offre una bella definizione di design: è il nome che diamo all’esigenza dell’uomo contemporaneo di modifi…

Design designer prodotto strategia sistema tecnologia futuroSettore ICAR/13 - Disegno Industriale
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IDEA | Quando la stampa 3D incontra il design medicale

2018

Nel marzo del 2016 un laboratorio universitario (Università di Palermo) e l'ente di formazione IDEA lavorano sul tema della sedia stampata in 3, mettendo a punto una strategia di comunicazione indirizzata ai cosiddetti new maker (artigiani digitali). In questa prospettiva, si ragiona intorno alla tecnologia della stampa 3D e sulle possibilità di sviluppo progettuale che essa permette. La stampa 3D, ad esempio, può dar luogo a oggetti di plastica come pure ad arredi senza l’uso di stampi, che richiederebbero un certo investimento economico e implicherebbero una serie industriale di esemplari identici per ammortizzare la spesa. Con la stampa 3D si stampa un pezzo alla volta; e si tratta di un…

Design tecnologia Arredamento Stampa 3DSettore ICAR/13 - Disegno Industriale
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