Search results for "LESS"

showing 10 items of 2452 documents

Severo Alessandro e la responsabilità del governante: P. Fayum 20 e altri testi a confronto

2017

L’analisi dell’editto trasmesso dal P. Fay. 20, con cui Severo Alessandro rimetteva il pagamento dell’aurum coronarium all’inizio del suo impero, e il confronto con altre testimonianze documentanti l’attività amministrativa imperiale evidenziano un comune denominatore, frutto delle scelte dei giuristi che collaboravano con l’imperatore, sul piano della comunicazione e della ricerca del consenso. In tutta questa documentazione virtù etiche inerenti alla sfera della philanthropia, in tutte le sue declinazioni, incarnano la responsabilità di chi governa in un’epoca di crisi e segnano la distanza dai predecessori.

Severo Alessandro responsabilità P.Fay. 20 philanthropia aurum coronarium [Parole-chiave]Settore L-ANT/03 - Storia RomanaParole-chiave: Severo Alessandro responsabilità P.Fay. 20 philanthropia aurum coronarium
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Shock formation in the dispersionless Kadomtsev-Petviashvili equation

2016

The dispersionless Kadomtsev-Petviashvili (dKP) equation $(u_t+uu_x)_x=u_{yy}$ is one of the simplest nonlinear wave equations describing two-dimensional shocks. To solve the dKP equation we use a coordinate transformation inspired by the method of characteristics for the one-dimensional Hopf equation $u_t+uu_x=0$. We show numerically that the solutions to the transformed equation do not develop shocks. This permits us to extend the dKP solution as the graph of a multivalued function beyond the critical time when the gradients blow up. This overturned solution is multivalued in a lip shape region in the $(x,y)$ plane, where the solution of the dKP equation exists in a weak sense only, and a…

Shock formationFOS: Physical sciencesGeneral Physics and AstronomyKadomtsev–Petviashvili equation01 natural sciencesCritical point (mathematics)010305 fluids & plasmasDissipative dKP equation[ MATH.MATH-AP ] Mathematics [math]/Analysis of PDEs [math.AP]Mathematics - Analysis of PDEsMethod of characteristicsPosition (vector)[MATH.MATH-MP]Mathematics [math]/Mathematical Physics [math-ph]0103 physical sciencesFOS: Mathematics[MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP]0101 mathematicsSettore MAT/07 - Fisica MatematicaMathematical PhysicsMathematical physicsMathematicsCusp (singularity)Multiscales analysisdispersionless Kadomtsev-Petviashvili equation; dissipative dKP equation; multiscales analysis; shock formationPlane (geometry)Multivalued functionApplied Mathematics010102 general mathematics[ MATH.MATH-MP ] Mathematics [math]/Mathematical Physics [math-ph]Statistical and Nonlinear PhysicsMathematical Physics (math-ph)Nonlinear Sciences::Exactly Solvable and Integrable SystemsDispersionless Kadomtsev-Petviashvili equationDissipative systemAnalysis of PDEs (math.AP)
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Gli ingegneri camerali in Sicilia dopo il terremoto del 1823

2016

La memoria intende indagare, attraverso lo studio delle fonti bibliografiche e soprattutto di una copiosa documentazione archivistica, il ruolo determinante svolto dalle istituzioni attraverso l’attività degli ingegneri camerali, tecnici alle dirette dipendenze dell’amministrazione regia, tra i quali emergono alcuni tra i professionisti più attivi del tempo quali Luigi Speranza, Giuseppe Patti e Alessandro Emmanuele Marvuglia. Questi ultimi vennero incaricati di effettuare numerosi sopralluoghi nelle zone colpite dal terremoto al fine di valutare e monitorare i danni, redigendo sia quadri di carattere generale relativi ai singoli centri, che perizie di dettaglio volte all’accertamento dei d…

Sicilia XIX secoloLuigi Speranza Giuseppe Patti Alessandro Emmanuele Marvuglia terremoto 1823 Sicilia XIX secolo ingegneri camerali PalermoLuigi SperanzaLuigi Speranza; Giuseppe Patti; Alessandro Emmanuele Marvuglia; terremoto 1823; Sicilia XIX secolo; ingegneri camerali; Palermo; earthquake; Sicily 19th century; Luigi Speranza; Giuseppe Patti; Alessandro Emmanuele Marvuglia; 1823; damages; post-earthquake reconstructionterremoto 1823Palermodamagesingegneri cameraliGiuseppe PattiearthquakeSicily 19th century1823post-earthquake reconstructionAlessandro Emmanuele Marvugliaearthquake Sicily 19th century Luigi Speranza Giuseppe Patti Alessandro Emmanuele Marvuglia 1823 damages post-earthquake reconstructionSettore ICAR/18 - Storia Dell'Architettura
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Sicilia ed Egitto in età ellenistica: riflessioni sulle relazioni artistico-culturali fra Siracusa e Alessandria

2015

During the Early Hellenistic age (late 4th and 3rd centuries) the relationships between Sicily and Egypt are above all based on the strong political, economic and cultural links between Syracuse and Alexandria. Literary sources and few material remains testify how the kings of Syracuse (Agathocles, and later Hieron II and his offsprings) follow mainly Ptolemaic models in “staging” their kingship with well-appointed architectural sceneries, and in adopting some distintive status symbols and a luxurious style of living (with the related artifacts, like silver tableware, jewels, “royal” dress, but also banqueting-halls, furnishings, mosaics, royal portraits, etc.). During 3rd century BCE local…

Sicilia Siracusa Egitto ellenistico Alessandria arte relazioni culturaliSettore L-ANT/07 - Archeologia Classica
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Il contributo degli architetti siciliani ai concorsi per le nuove chiese italiane della CEI

2015

Il saggio analizza il contributo degli architetti siciliani ai concorsi per le nuove chiese italiane della CEI. Nell’ambito di tale lunga esperienza promossa dalla CEI, il contributo degli architetti siciliani alla realizzazione delle nuove chiese italiane appare particolarmente significativo e si distingue per una costante presenza in tutti i concorsi e per la qualità dei risultati raggiunti attraverso l’esplorazione di temi progettuali tutti interni al processo di rinnovamento liturgico e rituale. Pasquale Culotta e Giuseppe (Bibi) Leone sono i primi a esordire nell’iniziale concorso indetto nel 1998 con il progetto per la parrocchia di San Giovan Battista in Lecce. L’anno successivo, Vin…

Sicilian architects Italian Episcopal Conference new Italian churches Pasquale Culotta Bibi Leone Vincenzo Melluso Marcello Panzarella Andrea Sciascia competitionSettore ICAR/14 - Composizione Architettonica E Urbananuove chiese italiane Conferenza Episcopale Italiana CEI architetti siciliano rinnovamento liturgico Pasquale Culotta Giuseppe Leone Vincenzo Melluso Marcello Panzarella Andrea Sciascia Sebastiano Triscari Vito Corte parrocchia di San Giovan Battista in Lecce complesso parrocchiale di Gesù Maestro in Potenza parrocchia di Santa Maria Roccella in località Roccelletta a Catanzaro chiesa parrocchiale di Santa Maria del Carmine ad Avellino complesso parrocchiale di San Giorgio Martire in Dresdano parrocchia di San Giacomo Apostolo in Ferrara
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Un lessico settoriale estinto: la lingua solfaresca nelle scritture

2019

Le voci di questo lessico di fine Ottocento, ormai spento negli usi concreti e persino dei ricordi degli ultimi zolfarai, è rinvenibile – relativamente ai testi scritti – nelle raccolte folkloriche di canti di miniera, nelle testimonianze diaristiche di tre donne straniere (Chapman, Hamilton-Caico; White Mario), in testi socio-economici, nei registri e verbali tecnici, in qualche testo letterario (Pier Maria Rosso di San Secondo, Luigi Pirandello, Alessio Di Giovanni, Giuseppe Giusti Sinopoli, Andrea Camilleri, Angelo Petix). Nell'articolo ci si concentra sul trattamento fonetico e morfologico di alcune voci, a partire dalle diverse tipologie di testo. In particolare sulle voci carusu (tras…

Sicily specialized lexicon sulfur mines literary functional and documentary writings dialectologySettore L-FIL-LET/12 - Linguistica ItalianaSicilia lessico specialistico miniere di zolfo scritture letterarie funzionali e documentarie dialettologia
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A Spatial-Temporal Correlation Approach for Data Reduction in Cluster-Based Sensor Networks

2019

International audience; In a resource-constrained Wireless Sensor Networks (WSNs), the optimization of the sampling and the transmission rates of each individual node is a crucial issue. A high volume of redundant data transmitted through the network will result in collisions, data loss, and energy dissipation. This paper proposes a novel data reduction scheme, that exploits the spatial-temporal correlation among sensor data in order to determine the optimal sampling strategy for the deployed sensor nodes. This strategy reduces the overall sampling/transmission rates while preserving the quality of the data. Moreover, a back-end reconstruction algorithm is deployed on the workstation (Sink)…

Signal Processing (eess.SP)FOS: Computer and information sciencesAdaptive samplingGeneral Computer ScienceComputer sciencespatial-temporal correlationReal-time computing02 engineering and technologyData loss[INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE]data reconstructionQA76Computer Science - Networking and Internet Architecture[INFO.INFO-IU]Computer Science [cs]/Ubiquitous Computing[INFO.INFO-CR]Computer Science [cs]/Cryptography and Security [cs.CR]FOS: Electrical engineering electronic engineering information engineering0202 electrical engineering electronic engineering information engineeringGeneral Materials ScienceElectrical Engineering and Systems Science - Signal ProcessingNetworking and Internet Architecture (cs.NI)General EngineeringSampling (statistics)020206 networking & telecommunicationsReconstruction algorithmDissipation[INFO.INFO-MO]Computer Science [cs]/Modeling and SimulationWireless sensor networks[INFO.INFO-MA]Computer Science [cs]/Multiagent Systems [cs.MA]data reduction020201 artificial intelligence & image processing[INFO.INFO-ET]Computer Science [cs]/Emerging Technologies [cs.ET]lcsh:Electrical engineering. Electronics. Nuclear engineering[INFO.INFO-DC]Computer Science [cs]/Distributed Parallel and Cluster Computing [cs.DC]lcsh:TK1-9971Wireless sensor networkData reduction
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Propagation Channels for mmWave Vehicular Communications : State-of-the-art and Future Research Directions

2018

Vehicular communications essentially support automotive applications for safety and infotainment. For this reason, industry leaders envision an enhanced role for vehicular communications in the fifth generation of mobile communications technology. Over the years, the number of vehicle- mounted sensors has increased steadily, which potentially leads to more volume of critical data communications in a short time. Also, emerging applications such as remote/autonomous driving and infotainment such as high-definition movie streaming require data-rates on the order of multiple Gb/s. Such high data rates require a large system bandwidth, but very limited bandwidth is available in the sub-6 GHz cel…

Signal Processing (eess.SP)FOS: Computer and information sciencesComputer scienceComputer Science - Information Theoryfrequency bandsAutomotive industry02 engineering and technologyFOS: Electrical engineering electronic engineering information engineering0202 electrical engineering electronic engineering information engineeringajoneuvotElectrical and Electronic EngineeringElectrical Engineering and Systems Science - Signal ProcessingHigh data rateta213business.industryInformation Theory (cs.IT)Bandwidth (signal processing)020206 networking & telecommunicationsMicrowave transmissionwireless communicationComputer Science ApplicationsvehiclesExtremely high frequencylangaton viestintätaajuusalueetCellular frequenciesMobile telephonybusinessTelecommunicationsCommunication channelIEEE Wireless Communications
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Design of SCMA Codebooks using Differential Evolution

2020

Non-orthogonal multiple access (NOMA) is a promising technology which meets the demands of massive connectivity in future wireless networks. Sparse code multiple access (SCMA) is a popular code-domain NOMA technique. The effectiveness of SCMA comes from: (1) the multi-dimensional sparse codebooks offering high shaping gain and (2) sophisticated multi-user detection based on message passing algorithm (MPA). The codebooks of the users play the main role in determining the performance of SCMA system. This paper presents a framework to design the codebooks by taking into account the entire system including the SCMA encoder and the MPA-based detector. The symbol-error rate (SER) is considered as…

Signal Processing (eess.SP)FOS: Computer and information sciencesComputer scienceWireless networkInformation Theory (cs.IT)Computer Science - Information Theory05 social sciencesMessage passingDetector050801 communication & media studiesmedicine.diseaseNoma0508 media and communicationsComputer engineeringDifferential evolution0502 economics and businessFOS: Electrical engineering electronic engineering information engineeringmedicineCode (cryptography)050211 marketingMinificationElectrical Engineering and Systems Science - Signal ProcessingEncoder2020 IEEE International Conference on Communications Workshops (ICC Workshops)
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Online Non-linear Topology Identification from Graph-connected Time Series

2021

Estimating the unknown causal dependencies among graph-connected time series plays an important role in many applications, such as sensor network analysis, signal processing over cyber-physical systems, and finance engineering. Inference of such causal dependencies, often know as topology identification, is not well studied for non-linear non-stationary systems, and most of the existing methods are batch-based which are not capable of handling streaming sensor signals. In this paper, we propose an online kernel-based algorithm for topology estimation of non-linear vector autoregressive time series by solving a sparse online optimization framework using the composite objective mirror descent…

Signal Processing (eess.SP)Kernel (linear algebra)Signal processingSeries (mathematics)Autoregressive modelComputer scienceFOS: Electrical engineering electronic engineering information engineeringGraph (abstract data type)InferenceTopology (electrical circuits)Electrical Engineering and Systems Science - Signal ProcessingWireless sensor networkAlgorithm
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