Search results for " limiti"

showing 10 items of 42 documents

Plant functional and taxonomic diversity in European grasslands along climatic gradients

2021

Aim European grassland communities are highly diverse, but patterns and drivers of their continental-scale diversity remain elusive. This study analyses taxonomic and functional richness in European grasslands along continental-scale temperature and precipitation gradients. Location Europe. Methods We quantified functional and taxonomic richness of 55,748 vegetation plots. Six plant traits, related to resource acquisition and conservation, were analysed to describe plant community functional composition. Using a null-model approach we derived functional richness effect sizes that indicate higher or lower diversity than expected given the taxonomic richness. We assessed the variation in abso…

0106 biological sciencesgrassland diversity333.7: Landflächen Naturerholungsgebieteenvironmental filtering favourability hypothesis functional richness grassland diversity limiting similarity null model plant trait diversity precipitation gradient seasonality taxonomic richness temperature gradient trait-environment relationshippragmatic approachBiodiversitylimiting similarityEnvironmental filtering; Favourability hypothesis; Functional richness; Grassland diversity; Limiting similarity; Null model; Plant trait diversity; Precipitation gradient; Seasonality; Taxonomic richness; Temperature gradient; Trait‐environment relationshipPlant Scienceprecipitation gradient01 natural sciencesGrasslandtaxonomic richnesstrait-environmentspecies richnessfavourability hypothesisbiodiversity2. Zero hungermechanismsgeography.geographical_feature_categoryEcologyEcologyseasonalitynull modelassembly rulesVegetation580: Pflanzen (Botanik)communityAssembly rulestrait convergence010603 evolutionary biologytemperature gradientLimiting similaritymedicineTrait‐environment relationshipgeographyfunctional richnessAquatic EcologyPlant communityenvironmental filtering15. Life on landSeasonalitymedicine.diseasetrait-environment relationshipEnvironmental scienceSpecies richnessdivergenceEnvironmental Sciencesplant trait diversity010606 plant biology & botany
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SiC Based Latching Current Limiter for High Voltage Space Power Distribution Systems

2018

This study presents a novel Latching Current Limiter topology, based on a N-channel Silicon Carbide (SiC) MOSFET as the main switching element. The design has been carried out using only discrete components, without digital controllers. This design has been validated by simulation and with a prototype. Tests have been performed at 1000V, modifying the limitation times, current-limiting values and eventually checking the proper operation of the system.

020301 aerospace & aeronauticsComputer scienceHigh voltageTopology (electrical circuits)02 engineering and technologychemistry.chemical_compoundElectric power systemCurrent limiting0203 mechanical engineeringchemistryvisual_artMOSFETElectronic componentSilicon carbideElectronic engineeringvisual_art.visual_art_mediumCircuit breaker2018 IEEE Energy Conversion Congress and Exposition (ECCE)
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Vital dyes in macular hole surgery

2021

Currently, surgical techniques, such as internal limiting membrane peeling, are used widely for macular holes, macular puckers, epiretinal membranes, diabetic macular edema, retinal detachment, retinal vein occlusions, vitreomacular traction, optic pit maculopathy, and Terson syndrome. This study aimed to highlight any differences regarding visual acuity and ocular tomography coherence changes after staining the internal limiting membrane with dilutions of Brilliant Blue G vs. lutein/zeaxanthin-based dyes. This study involved 30 eyes of 30 patients who had undergone posterior pole vitrectomy for idiopathic stage 4 macular hole. The study lot was divided in two subgroups, 15 eyes colored wit…

0301 basic medicinePars planaCancer Researchmedicine.medical_specialtyVisual acuityinternal limiting membranegenetic structuresmedicine.medical_treatmentlutein and zeaxanthin dyesVitrectomyVitreomacular traction03 medical and health sciences0302 clinical medicineImmunology and Microbiology (miscellaneous)intraocular dyesOptic pitmedicinestaining techniqueMacular holepars plana vitrectomybusiness.industryBrilliant Blue GcromovitrectomyRetinal detachmentGeneral MedicineArticlesmedicine.diseaseeye diseasesSurgerymacular hole030104 developmental biologymedicine.anatomical_structure030220 oncology & carcinogenesisMaculopathysense organsmedicine.symptombusinessExperimental and Therapeutic Medicine
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Autorità Indipendenti e soft law. Forme, contenuti, limiti e tutele.

2018

è una monografia scientifica che vuole indagare il fenomeno della soft law, limitando il campo di indagine ad alcune Autorità Indipendenti che. per la loro autorevolezza e per l’importanza dei settori cui sono proposte, si sono imposte nel panorama italiano. In particolare lo studio evidenzia come esse, attraverso i loro atti spesso non dotati di efficacia formalmente vincolante, siano in grado di intervenire nel sistema delle fonti in modo significativo. Ciò accade perché il legislatore pare aver scelto di abbandonare il campo di gioco in settori molto rilevanti dal punto di vista economico e sociale e caratterizzati da alta tecnicità, delegando a questi organismi la loro governance genera…

Autorità indipendenti soft law fonti del diritto limiti costituzionali limiti legislativi tutela giurisdizionale.Settore IUS/08 - Diritto Costituzionale
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I beni confiscati alla mafia: verso la riconquista della legalità

2003

La Legge 7 marzo 1996, n.109, Disposizioni in materia di gestione e destinazione di beni sequestrati o confiscati, può essere considerata, uno strumento fondamentale per la lotta alla criminalità organizzata. Partendo dal presupposto che la lotta alla mafia debba passare anche attraverso l'attacco al capitale economico dell'organizzazione, in quanto base del potere mafioso, la legge n. 109/96 si inserisce in una strategia dal profondo significato simbolico, in quanto prevede che la destinazione d'uso dei beni confiscati debba essere sociale e istituzionale. In tal modo si cerca di proporre e affermare sul territorio il modelli della legalità attraverso il riutilizzo di beni che rappresentav…

Beni conficati dati e limiti
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Contribution to variational analysis : stability of tangent and normal cones and convexity of Chebyshev sets

2014

The aim of this thesis is to study the following three problems: 1) We are concerned with the behavior of normal cones and subdifferentials with respect to two types of convergence of sets and functions: Mosco and Attouch-Wets convergences. Our analysis is devoted to proximal, Fréchet, and Mordukhovich limiting normal cones and subdifferentials. The results obtained can be seen as extensions of Attouch theorem to the context of non-convex functions on locally uniformly convex Banach space. 2) For a given bornology β on a Banach space X we are interested in the validity of the following "lim inf" formula (…).Here Tβ(C; x) and Tc(C; x) denote the β-tangent cone and the Clarke tangent cone to …

Contingent coneCône tangent de BouligandSuite minimisanteFonctions sous-régulières cône normal (tangent) de ClarkeClarke tangent (normal) coneMetric projection[MATH.MATH-GM] Mathematics [math]/General Mathematics [math.GM]Chebyshev setMosco (Attouch-Wets) convergenceAsplund spaceCône normal proximalProjection metriqueEnsemble de ChebyshevConvergence au sens de Mosco (d'Attouch-Wets)Subsmooth sets (functions)BornologyBornologieMinimizing sequenceProximal normal coneFréchet (Mordukhovich limiting) subdifferentialEspace d'AsplundTrustworthinessSous-différentiel de Fréchet (de Mordukhovich)Ensembles sous-réguliers
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Circuit proposals for high-voltage latching current limiters

2019

This work discusses some ideas to adapt existing low voltage Latching Current Limiter (LCL) circuits to high voltage operation to provide a basis for future designs. Component selection, driver and ancillary power supply are key issues discussed which eventually provides a high-voltage LCL proposal. Experimental validation of two different prototypes (380Vdc and 1kVdc) is included as well as some digital techniques to enhance LCL capabilities.

Current limitingWork (electrical)Computer scienceComponent (UML)LimiterElectronic engineeringHigh voltageLow voltagePower (physics)Electronic circuit2019 European Space Power Conference (ESPC)
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Funzione sociale della proprietà

2009

Diritto di proprietà. Libertà e limiti alla proprietà.
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Sensitization of nanocrystalline TiO2 with 3,4,9,10-perylene tetracarboxylic acid

2014

Optical properties of 3,4,9,10-perylene tetracarboxylic acid (PTCA) in the presence of nanocrystalline TiO2 (nominal diameter 15 nm) have been investigated in ethanol solution and in the solid state by UV-Vis absorption spectroscopy and steady-state and time-resolved fluorescence. Experimental results show that, in ethanol, the presence of TiO2 nanoparticles causes significant changes in the typical absorption and fluorescence bands of PTCA and in the fluorescence relaxation time. Similar effects are also detected in solid samples, obtained by electrospray deposition technique. The nonlinear optical properties of the PTCA-TiO2 in ethanol solutions were investigated using the single-beam Z-s…

ElectrosprayMaterials scienceAbsorption spectroscopyAnalytical chemistryBioengineeringchemistry.chemical_compoundGeneral Materials ScienceTitania nanoparticles Dye sensitization Absorption and fluorescence spectroscopies Optical limiting Z-scan methodDeposition (law)Settore CHIM/02 - Chimica FisicaZ-scan methodTitania nanoparticles; Dye sensitization; Absorption and fluorescence spectroscopies; Optical limiting; Z-scan methodDye sensitizationGeneral ChemistryCondensed Matter PhysicsFluorescenceAtomic and Molecular Physics and OpticsNanocrystalline materialchemistryModeling and SimulationAbsorption (chemistry)Optical limitingLuminescenceTitania nanoparticlesPeryleneAbsorption and fluorescence spectroscopiesJournal of Nanoparticle Research
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Nota a Cass., sez. un., 16 luglio-23 ottobre 2020, n. 29541, Filardo, in tema di estorsione ed esercizio arbitrario delle proprie ragioni

2021

Con la sentenza in epigrafe, le Sezioni Unite della Corte di Cassazione si pronunciano sulla classica vexata quaestio dei rapporti tra estorsione ed esercizio arbitrario delle proprie ragioni. Più precisamente, dopo aver richiamato i due macro-orientamenti giurisprudenziali - l'uno tendente a valorizzare l'elemento materiale della fattispecie (sub specie, di gravità o intensità della violenza o minaccia), l'altro l'elemento psicologico -, e dopo aver rilevato il carattere "più apparente, che reale" del contrasto tra i due, propendono per una tesi mediana facente leva, oltre che sull'elemento soggettivo del reato, anche sul carattere della ragionevole convinzione della fondatezza della prete…

Esercizio arbitrario delle proprie ragioni — Estorsione — Differenze — Concorso di persone nel reato — Configurabilità — LimitiSettore IUS/17 - Diritto Penale
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