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showing 10 items of 827 documents

La scoperta, sistemazione e conservazione della grande Iscrizione di Gortina, nell'isola di Creta (1884-1921): la protezione delle testimonianze e le…

2013

La scoperta e la conservazione della Grande Iscrizione di Gortina a Creta, da parte degli studiosi italiani, fra la fine del XIX sec. e i primi decenni del XX sec., rappresentò un grande riconoscimento scientifico-culturale per la giovane nazione italiana. Nel passato, l’isola di Creta era stata legata alla Repubblica di Venezia e anche questo rapporto favorì l’invio a Creta del giovane epigrafista F. Halbherr, il quale fra notevoli peripezie rinvenne, assieme all’epigrafista tedesco E. Fabricius, la famosa l’iscrizione nell’antica città di Gortina. L’iscrizione, fra le più antiche e complete finora conosciute in tutta Europa, conteneva le norme sulla famiglia, l’eredità e in generale i dir…

The discovery and preservation of the Great Inscription of Gortyna in Crete by Italian researchers in the late nineteenth century. and the first decades of the twentieth century. was an important cultural and scientific recognition for the young Italian nation. In the past the island of Crete had been tied to the Republic of Venice and this report also favored sending in Crete the young epigraphist F. Halbherr who among considerable vicissitudes came to together to the epigraphist german E. Fabricius the inclusion of the famous ancient city of Gortyna. The inscription among the oldest and most comprehensive so far known throughout Europe the rules contained on the family's legacy in general and the rights and duties of some of the people of the Minoan civilization (480-450 BC). The inscription was carved on blocks organic limestone a restored ancient building which later in Roman times was turned into odeon. The Laws of Gortyn were engraved on the remains of the wall forming the passageway in front of the steps of the odeon. The essay traces the events that led to the discovery and subsequent storage made by Halbherr especially with the help of archaeologist L. Pernier and finally with the help of architect E. Stefani who designed a modern cover on the top of the ambulatory of the segments containing the inscription. This coverage was made to perform during the First World War on the basis of the Italian project from the Greek Government in order to protect the membership from possible war damage but especially from vandalism. The roof brick clay of the Laws of Gortyna still serves its function and ensures the use of the monument bearing witness to the preservation of Italian culture in Greece and more generally in the world. But in Sicily in the remains of the Villa del Casale in Piazza Armerina (Enna) its elegant protection (built in 1957) is representative of a whole period of culture of the Italian restoration is removed and replaced because it has not been able to make a ongoing maintenance is due. A bad example of conservation and management of a UNESCO monument from which arise after the work for the construction of new roofs an equally insulting to the archaeological heritage and scenic Italian and world.Settore ICAR/19 - Restauro
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Rapid and eco-friendly synthesis of graphene oxide-silica nanohybrids

2014

The increasing interest in Graphene oxide (GO) is due to many issues: the presence of both sp2-conjugated atoms and oxygen-containing functional groups provides a strong hydrophilicity and the possibility to further functionalize it with other molecules (i.e. π-π interactions covalent attachment etc.) [1]. Furthermore since the GO is biocompatible and noncytotoxic many studies have been recently focused on the development of GO-based nanodevices for bioimaging DNA detection drug delivery. Due to their low cytotoxicity and large internal surface area silica nanoparticles have been taken into account as promising material for biolabeling and drug loading/delivery. Particular consideration has recently been demonstrated for GO-silica composites because of the potentialities for electrical applications their chemical inertia and stability toward ions exposure. The possibility to combine the extraordinary properties of GO and silica offers several advantages for the realization of nanoprobes for biological applications and of biosensor [12]. The strategy for the fabrication of GO-nanosilica nanohybrids can be schematized as follows: (i) synthesis of GO by oxidizing graphite powder with the method described by Marcano et al. [3] (ii) Preparation of oxygen-loaded silica nanoparticles by thermal treatments in controlled atmosphere in order to induce high NIR emission at 1272 nm from high purity silica nanoparticles. (iii) preparation of GrO-silica nanohybrid films via rapid solvent casting in water. The nanohybrids were tested by XPS FTIR Raman analysis UV photoluminescence analysis TGA Zeta potential measurements electrical tests AFM and SEM. Several nanohybrids were prepared by combining two different typologies of GO and two different samples of silica.
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Integrazione di celle fotovoltaiche ibride nel vetromattone

2012

L’invenzione riguarda l’integrazione del vetromattone con celle solari ibride (organiche/inorganiche), conosciute come Dye-sensitized Solar Cell (DSC). La combinazione del vetromattone con le DSC consente di migliorare le prestazioni del prodotto originario rendendolo in grado di produrre energia pulita. Le caratteristiche di trasparenza e isolamento termo-acustico del prodotto possono essere regolate agendo sulla configurazione delle DSC. Il prodotto può essere assemblato a formare pannelli fotovoltaici per la realizzazione di facciate traslucide energeticamente “attive” in varie condizioni luminose (condizioni di luce diffusa o artificiale) e indipendentemente dall’angolo di radiazione so…

The integration of Dye-sensitized Solar Cell (DSC) with the glassblock is disclosed. The combination of the two technological elements the glassblock and the DSC module enhance their own peculiarities. The final complete product is ready-made for installation owns the qualities of the glassblock and produces sustainable energy at the same time. The transparency and the thermo-acoustic insulation may be modulated according to the specific requirements of each case of installation. The product may be used for example to create PV panels for glazed and translucent façades that are able to perform efficiently in all light conditions (even in diffuse light also converting internal artificial light) that are not dependant on the angle of the solar radiation and do not suffer from the high operative temperatures of functioning due to the peculiarities of the DSCs. DSCs are made of economic and biocompatible materials and are produced with low-cost and highly productive printing methods on rigid or flexible substrates. With the integration of DSC modules with the glassblock PV panels coincide with the envelope itself so that they do not need any further structures to be installed on and allow the possibility of subtract from the price of the panel the price of the substituted building element allowing further economies. DSCs can be printed in different colours and with various patterns offering to designers and customers the possibility of intervening on the glassblock aesthetical aspect also taking advantage of the peculiar modularity of the glassblock for larger compositions of drawings on the building’s façade. Seven Hypotheses of integration are discussed in order to obtain DSC-integrated glassblock ready for the construction of a precast and dry-assembled PV panel which can use the horizontal and vertical cavities between the glassblocks to house plastic profiles where the electric interconnections and the steel bars -useful for improve the mechanical resistance of the panel- are integrated.Settore ICAR/10 - Architettura Tecnica
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Senti chi parla. Su un aspetto dell’attività di parola a partire da Lacan.

2017

The paper analyzes a theoretical point of interest of the lacanian psychoanalysis: the role of the speaker as his own hearer. In order to explicate some details of this topic we connect the lacanian intuition with some operations of the human language activity.Lacan epilinguistics otherness dialogism.
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nalysis, Modeling and Simulation of Mechatronic Systems using the Bond Graph Method

2011

The Bond Graph is the proper choice of physical system used for: (i) Modeling which can be applied to systems combining multidisciplinary energy domains, (ii) Analysis to provide a great value proposition for finding the algebraic loops within the system enabling the process of troubleshooting and eliminating the defects by using the proper component(s) to fix the causality conflict even without being acquainted in the proper system, and (iii) Simulation facilitated through derived state space equations from the Bond Graph model is solved using industrial simulation software, such as 20-Sim. The Bond Graph technique is a graphical language of modeling, in which component energy ports are co…

Theoretical computer scienceMomentumComputer sciencePhysical systemDielectric electro active polymers (DEAP)Fourth order electrical systemTroubleshootingTopologycomputer.software_genrelcsh:QA75.5-76.95Modeling and simulationComponent (UML)Bond graphPush actuatorState-space representationProcess (computing)Casual strokeDisplacementEffective strokeComputer Science ApplicationsSimulation software20-Sim toolControl and Systems EngineeringModeling and SimulationEffective forcelcsh:Electronic computers. Computer sciencecomputerBond graphSoftwareModeling, Identification and Control: A Norwegian Research Bulletin
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Local thermal equilibrium and ideal gas Stephani universes

2005

The Stephani universes that can be interpreted as an ideal gas evolving in local thermal equilibrium are determined. Five classes of thermodynamic schemes are admissible, which give rise to five classes of regular models and three classes of singular models. No Stephani universes exist representing an exact solution to a classical ideal gas (one for which the internal energy is proportional to the temperature). But some Stephani universes may approximate a classical ideal gas at first order in the temperature: all of them are obtained. Finally, some features about the physical behavior of the models are pointed out.

Thermal equilibriumPhysicsTheoretical physicsExact solutions in general relativityPhysics and Astronomy (miscellaneous)Internal energyFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]First orderIdeal gasGeneral Relativity and Quantum Cosmology
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Asymptotics for third-order nonlinear differential equations: Non-oscillatory and oscillatory cases

2022

We discuss a third-order differential equation, involving a general form of nonlinearity. We obtain results describing how suitable coefficient functions determine the asymptotic and (non-)oscillatory behavior of solutions. We use comparison technique with first-order differential equations together with the Kusano–Naito’s and Philos’ approaches.

Third order nonlinearOscillation and non-oscillationDifferential equationGeneral MathematicsComparison technique010102 general mathematicsMathematical analysis01 natural sciencesAsymptotic behavior010101 applied mathematicsSettore MAT/05 - Analisi Matematica0101 mathematicsThird-order differential equationNonlinear differential equationMathematics
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Global extrapolation with a parallel splitting method

1992

Extrapolation with a parallel splitting method is discussed. The parallel splitting method reduces a multidimensional problem into independent one-dimensional problems and can improve the convergence order of space variables to an order as high as the regularity of the solution permits. Therefore, in order to match the convergence order of the space variables, a high order method should also be used for the time integration. Second and third order extrapolation methods are used to improve the time convergence and it was found that the higher order extrapolation method can produce a more accurate solution than the lower order extrapolation method, but the convergence order of high order extr…

Third orderUnit circleHigh Energy Physics::LatticeApplied MathematicsNumerical analysisConvergence (routing)Mathematical analysisExtrapolationSpace (mathematics)Unit squareMinimum polynomial extrapolationMathematicsNumerical Algorithms
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Combination of measurements of the top-quark pair production cross section from the Tevatron Collider

2014

We combine six measurements of the inclusive top-quark pair (tt̄) production cross section (σtt̄) from data collected with the CDF and D0 detectors at the Fermilab Tevatron with proton-antiproton collisions at s=1.96TeV. The data correspond to integrated luminosities of up to 8.8fb-1. We obtain a value of σtt̄=7.60±0.41pb for a top-quark mass of mt=172.5GeV. The contributions to the uncertainty are 0.20 pb from statistical sources, 0.29 pb from systematic sources, and 0.21 pb from the uncertainty on the integrated luminosity. The result is in good agreement with the standard model expectation of 7.35-0.33+0.28pb at next-to-next-to-leading order and next-to-next-to leading logarithms in pert…

Top quarkP(P)OVER-BAR COLLISIONSTevatron7. Clean energylaw.inventionPhysics Particles & FieldsHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)law[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]HADRON COLLIDERSFERMILABFermilabNuclear ExperimentQuantum chromodynamicsPhysicsLarge Hadron ColliderPhysicsP(P)OVER-BAR COLLISIONS; ROOT-S=1.96 TEV; PARTON DISTRIBUTIONS; HADRON COLLIDERS; LEADING ORDER; T(T)OVER-BAR; DETECTOR; LHC; QCD; FERMILABPerturbative QCD3. Good healthROOT-S=1.96 TEVPhysical SciencesComputingMethodologies_DOCUMENTANDTEXTPROCESSINGLHCT(T)OVER-BARParticle physicsNuclear and High Energy PhysicsFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstronomy & AstrophysicsMASSNuclear physicsSEARCHColliderParticle PhysicsDETECTORAstrophysics::Galaxy AstrophysicsScience & Technologyhep-exLEADING ORDERHigh Energy Physics::PhenomenologyTop quarkQCDP(P)OVER-BAR COLLISIONS; T(T)OVER-BAR; DETECTOR; SEARCH; MASSPair productionPARTON DISTRIBUTIONSExperimental High Energy PhysicsCollider PhysicsCDFHigh Energy Physics::ExperimentParticle Physics; Collider Physics; Top quark
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Electroweak measurements in electron-positron collisions at W-boson-pair energies at LEP

2013

The ALEPH, DELPHI, L3, OPAL collaborations and LEP Electroweak Working Group.-- arXiv:1302.3415

Top quarkPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; ALEPH; DELPHI; L3; OPALElectron–positron annihilationPrecision measurements at W-pair energiesWW bosonGeneral Physics and AstronomyCOLOR DIPOLE MODEL01 natural sciences7. Clean energyZZ bosonMathematical SciencesHigh Energy Physics - Experimentelectroweak interactionsHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)electron-positron physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]FERMION-LOOP SCHEMEANOMALOUS MAGNETIC-MOMENTOF-MASS ENERGIES; TOP-QUARK MASS; CARLO EVENT GENERATOR; HADRONIC Z-DECAYS; INVARIANT YFS EXPONENTIATION; ANOMALOUS MAGNETIC-MOMENT; (UN)STABLE W+W-PRODUCTION; FERMION-LOOP SCHEME; COLOR DIPOLE MODEL; LEADING ORDER QCDeffective coupling constantsBosonPhysicsOPALPhysicsElectroweak interactionSettore FIS/01 - Fisica Sperimentalehep-phPrecision measurements at WW-pair energiesRadiative correctionsALEPHNuclear & Particles PhysicsLARGE ELECTRON POSITRON COLLIDER3. Good healthRadiative correctionHigh Energy Physics - PhenomenologyOF-MASS ENERGIESDecays of heavy intermediate gauge bosonsINVARIANT YFS EXPONENTIATIONPrecision measurements at W-pair energieFermion-antifermion productionL3Physical SciencesComputingMethodologies_DOCUMENTANDTEXTPROCESSINGPARTICLE PHYSICSFísica nuclearProduction (computer science)decays of heavy intermediate gauge bosons; neutral weak current; w boson; tests of the standard model; precision measurements at w-pair energies; fermion-antifermion production; top quark; electron-positron physics; electroweak interactions; effective coupling constants; higgs boson; z boson; radiative correctionsFermion–antifermion productionELECTROWEAK INTERACTIONTests of the Standard ModelParticle Physics - ExperimentParticle physicsZ bosonElectron-positron physicElectroweak interactionsLEADING ORDER QCDHiggs boson(UN)STABLE W+W-PRODUCTIONFOS: Physical sciencesdecays of heavy intermediate gauge bosonsddc:500.2Decays of heavy intermediate gauge bosonEffective coupling constantPartícules (Física nuclear)Standard ModelNuclear physicsPhysics and Astronomy (all)Neutral weak current0103 physical sciencesddc:530010306 general physicsTOP-QUARK MASSEffective coupling constantsDELPHIElectron–positron physicshep-ex010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyCARLO EVENT GENERATORTop quarkradiative correctionsElectron-positron physics; Electroweak interactions; Decays of heavy intermediate gauge bosons; Fermion-antifermion production; Precision measurements at W-pair energies; Tests of the Standard Model; Radiative corrections; Effective coupling constants; Neutral weak current; Z boson; W boson; Top quark; Higgs bosonHADRONIC Z-DECAYSCol·lisions (Física nuclear)[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Experimental High Energy PhysicsLarge Electron–Positron ColliderW bosonHigh Energy Physics::ExperimentElectron-positron physics
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