Search results for "Volta"

showing 10 items of 2055 documents

La chiesa di Santa Maria della Catena a Palermo come exemplum

2016

Realizzata entro il terzo decennio del XVI secolo, la chiesa di Santa Maria della Catena a Palermo mostra una gamma di soluzioni linguistiche, di impianto, spaziali e costruttive di grande interesse, che coniugano sapientemente tradizione e "modernità". Il saggio propone una riflessione critica sul ruolo di exemplum svolto da questa architettura nel contesto artistico culturale nel quale si inserisce, con riferimento in particolare alla soluzione di copertura della crociera con una volta costolonata a cinque chiavi.

storia della costruzioneVolta a cinque chiavitardogoticoSettore ICAR/18 - Storia Dell'Architettura
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Percorsi storiografici sul XVII secolo: dalla rivolta alla resistenza

2011

Un lungo percorso compiuto dalla storiografia europea e americana conduce dal concetto di rivolta a quello più politico di resistenza

storiografiastoriografia; rivoltarivoltaSettore M-STO/02 - Storia Moderna
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Composizione liquida mordenzante, diretta a creare una struttura frattale antiriflesso sulla superficie di celle fotovoltaiche, composte da un substr…

2012

struttura frattale antiriflesso celle fotovoltaicheSettore ICAR/12 - Tecnologia Dell'Architettura
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Il Laboratorio per lo Sviluppo Sostenibile e il Risparmio Energetico (SDESLab) nell’ambito industriale siciliano

2009

L’articolo presenta le attività del Laboratorio per lo Sviluppo Sostenibile ed il Risparmio Energetico (SDESLAB) dell’Università degli Studi di Palermo nei confronti dell’ambito industriale, con particolare riguardo a quello siciliano. Vengono illustrati gli ambiti di intervento del Laboratorio: ricerca scientifica di base, consulenza alle industrie e alle imprese, formazione, informazione e divulgazione nei vari campi dello sviluppo sostenibile con particolare riguardo a energie rinnov- abili, azionamenti elettrici, automazione industriale e gestione automatizzata dell’energia. Vengono descritte le attrezzature di cui il Laboratorio si avvale per le proprie attività, i progetti di ricerca i…

sviluppo sostenibile risparmio energetico energia eolica energia fotovoltaica vettore idrogeno gestione automatica dell’energiaSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici
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Biased graph walks for RDF graph embeddings

2017

Knowledge Graphs have been recognized as a valuable source for background information in many data mining, information retrieval, natural language processing, and knowledge extraction tasks. However, obtaining a suitable feature vector representation from RDF graphs is a challenging task. In this paper, we extend the RDF2Vec approach, which leverages language modeling techniques for unsupervised feature extraction from sequences of entities. We generate sequences by exploiting local information from graph substructures, harvested by graph walks, and learn latent numerical representations of entities in RDF graphs. We extend the way we compute feature vector representations by comparing twel…

ta113graph embeddingsGraph kernelComputer scienceVoltage graphComparability graphdata mining02 engineering and technologycomputer.software_genre020204 information systemsyhdistetty avoin tietolinked open data0202 electrical engineering electronic engineering information engineeringTopological graph theoryGraph (abstract data type)020201 artificial intelligence & image processingData miningtiedonlouhintaGraph propertyNull graphLattice graphavoin tietocomputerProceedings of the 7th International Conference on Web Intelligence, Mining and Semantics
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Design of a Cleaning Program for a PV Plant Based on Analysis of Energy Losses

2015

Solar photovoltaic (PV) energy has grown significantly over the past few years. However, despite the increase in installed capacity, this energy source still raises important concerns related to the variability of power production. The short-term effects such as cloud shadowing and supply interruptions, as well as long-term effects such as dust accumulation, seasonal variation, and ageing of PV modules, can cause variability of power production. Therefore, the analysis of all the variability sources in order to provide statistically consistent power production data is an important challenge. This study presents a methodology to analyze data from a PV plant in order to have an independent ev…

ta213digital signal processingta1172Photovoltaic systemEnvironmental engineeringSeasonalityCondensed Matter Physicsmedicine.diseaseElectronic Optical and Magnetic MaterialsPower (physics)Nameplate capacityenvironmental factorsphotovoltaic systemsmedicineGrid-connected photovoltaic power systemEnvironmental scienceProduction (economics)Electrical and Electronic EngineeringEnergy sourceta218Energy (signal processing)IEEE Journal of Photovoltaics
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Thermal anomalies detection in a photovoltaic plant using artificial intelligence: Italy case studies

2021

This paper proposes the application of artificial intelligence techniques for the identification of thermal anomalies that occur in a photovoltaic system due to malfunctions or faults, with the aim to limit the energy production losses by detecting faults at an early stage. The proposed approach is based on a Thermographic Non-Destructive Test conducted with Unmanned Aerial Vehicles equipped with a thermal imaging camera, which allows the detection of abnormal operating conditions without interrupting the normal operation of the PV system rapidly and cost-effectively. The thermographic images and videos are automatically inspected using a Convolutional Neural Network, developed by an open-s…

thermal anomaliesbusiness.industryComputer sciencePhotovoltaic systemSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettriciartificial intelligenceConvolutional neural networkReduction (complexity)Identification (information)photovoltaic systeminfrared thermographyLimit (music)ThermalAutomatic detectionStage (hydrology)Artificial intelligencebusinessEnergy (signal processing)2021 IEEE International Conference on Environment and Electrical Engineering and 2021 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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Nel labirinto degli indizi. La «Merope» di Maffei

2014

tragedia settecento illuminismo informazione verità teatro merope maffei voltaireSettore L-FIL-LET/10 - Letteratura ItalianaSettore L-ART/05 - Discipline Dello Spettacolo
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TRANSITION METAL OXIDES AS SELECTIVE CONTACTS FOR C-SI SOLAR CELLS

2021

transition metal oxides solar cell c-Si defects small polaron molybdenum oxide titanium oxide efficiency photovoltaicSettore ING-INF/01 - Elettronica
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Bias and temperature dependence analysis of the tunneling current of normal metal-insulator-normal metal tunnel junctions

2003

tunnel junctionbias voltage dependencetunnelingtunneling currenttemperature dependenceelectron tunneling
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