Search results for "Linea"

showing 10 items of 7724 documents

First records of defensive tail vibration in the Italian Aesculapian Snake, Zamenis lineatus (Camerano, 1891)

2022

We report for the first time defensive tail vibration in the Italian Aesculapian Snake, Zamenis lineatus (Camerano, 1891)

defensive behavior tail vibration Zamenis lineatus Sicily
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Extension of Deflection Coefficient for Linear Fusion of Quantized Reports in Cooperative Sensing

2014

Maximizing the so-called deflection coefficient is commonly used as an effective approach to design cooperative sensing schemes with low computational complexity. In this paper, an extension to the deflection coefficient is proposed which captures the effects of the quantization processes at the sensing nodes, jointly with the impact of linear combining at the fusion center. The proposed parameter is then used to formulate a new mixed-integer nonlinear programming problem as a fast suboptimal method to design a distributed detection scenario where the nodes report their sensing outcomes to a fusion center through nonideal digital links. Numerical evaluations show that the performance of the…

deflection coefficientcooperative sensinglinear fusion
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Robust delay-dependent H∞ control of uncertain time-delay systems with mixed neutral, discrete, and distributed time-delays and Markovian switching p…

2011

Author's version of an article published in the journal: IEEE Transactions on Circuits and Systems I: Regular Papers. Also available from the publisher at: http://dx.doi.org/10.1109/tcsi.2011.2106090 The problem of robust mode-dependent delayed state feedback H ∞ control is investigated for a class of uncertain time-delay systems with Markovian switching parameters and mixed discrete, neutral, and distributed delays. Based on the LyapunovKrasovskii functional theory, new required sufficient conditions are established in terms of delay-dependent linear matrix inequalities for the stochastic stability and stabilization of the considered system using some free matrices. The desired control is …

delay systems H∞ control linear matrix inequalities Markov processes uncertain systems delay-dependent delayed state feedback distributed delays Lyapunov-Krasovskii functionals Markovian switching numerical example Stochastic stability and stabilization sufficient conditions uncertain time-delay system control system stability convex optimization delay control systems stabilization state feedback switching systems time delay uncertainty analysis discrete time control systemsVDP::Technology: 500::Mechanical engineering: 570VDP::Mathematics and natural science: 400::Mathematics: 410
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Non-linear optical, electrochemical and spectroelectrochemical properties of amphiphilic inner salt porphyrinic systems

2016

Three zwitterionic meso-substituted A3B- and AB2C-porphyrins containing one sulfonato alkylpyridinium substituent and three or two alkoxy-substituted phenyl groups were synthesized in good yield and fully characterized as to their physicochemical properties by a variety of techniques. This new series of inner salt donor-acceptor meso-substituted porphyrin derivatives were prepared for possible application as amphiphilic probes for membrane insertion in the area of combined second-harmonic and two-photon fluorescence cellular microscopy. To this end, the linear and nonlinear optical properties of the compounds were characterized, together with their electrochemical and spectroelectrochemica…

designInorganic chemistrySubstituentamphiphilic inner salt02 engineering and technology010402 general chemistryElectrochemistryPhotochemistry[ CHIM ] Chemical Scienceselectron-accepting moieties01 natural sciencesnon-linear optical propertychemistry.chemical_compoundAmphiphilechromophores[CHIM]Chemical SciencesMoleculeChemistryfrequency dispersionSecond-harmonic generationspectroelectrochemistrydipolar complexesGeneral Chemistry021001 nanoscience & nanotechnologyPorphyrinFluorescence0104 chemical sciences2nd-harmonic generationelectrochemistrymicroscopycharge-transferfluorescenceAbsorption (chemistry)hyper-rayleigh scattering0210 nano-technologyJournal of Porphyrins and Phthalocyanines
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Por sus obras los conoceréis. Documentos de perpetrador y voces de víctimas en Retratos de identificação (Anita Leandro, 2014)

2021

espanolEn los ultimos anos, el estudio de los perpetradores de violencia de masas ha crecido sustancialmente en publicaciones academicas, museos, memorias y cobertura mediatica. Lo ha hecho cada vez con menos dependencia respecto a los influyentes y muy avanzados Holocaust Studies. Ademas, los horizontes de la investigacion se han ampliado desde las personalidades y la maquinaria de destruccion al estudio mas cercano de los documentos, objetos y mirada de los perpetradores. Es en este dominio donde se inscribe un film como Retratos de identificacao de Anita Leandro (2014), film que, nacido de la investigacion historica, se propone reescribir mediante el uso de la composicion y el montaje lo…

dictadura brasileñaDomain (biology)media_common.quotation_subjectdocumentalMass violenceArtLineaHM401-1281Cinema documentalimágenes de perpretadortorturaMemoirSociology (General)Humanitiesmedia_commonPapeles del CEIC
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Reconfigurable nonlinear response of dielectric and semiconductor metasurfaces

2021

Abstract Optically resonant dielectric and semiconductor metasurfaces are an emerging and promising area of nanophotonics and light–matter interaction at the nanoscale. Recently, active tuning of the linear response and nonlinear effects of these components has received an increasing amount of interest. However, so far these research directions have remained separated with only few sporadic works that study their combination beginning to appear in the literature. The evolution of nonlinear metasurfaces based on dielectric and semiconductor materials toward reconfigurable and dynamic components could potentially answer the demand of integrated on-chip components that realize essential functi…

dielectric metasurfaces nanophotonics nonlinear optics second-harmonic generation third-harmonic generationMaterials sciencebusiness.industrydielectric metasurfaces; nanophotonics; nonlinear optics; second-harmonic generation; third-harmonic generationPhysicsQC1-999nonlinear opticsNanophotonicsSecond-harmonic generationNonlinear opticsPhysics::OpticsSettore ING-INF/02 - Campi ElettromagneticiDielectricAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialsthird-harmonic generationNonlinear systemSemiconductorOptoelectronicsnanophotonicsdielectric metasurfacesElectrical and Electronic EngineeringbusinessBiotechnologysecond-harmonic generationNanophotonics
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Stability and oscillation of dynamical systems : theory and applications

2008

differentaaliyhtälöttime-varying linearizationstabilitymatemaattiset mallitfaasittietotekniikkasynchronizationsymbolic computation
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Lineaariset differentiaaliyhtälöryhmät

2014

differentiaaliyhtälödifferentiaaliyhtälöryhmälineaarialgebra
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On Variational Measures Related to Some Bases

2000

Abstract We extend, to a certain class of differentiation bases, some results on the variational measure and the δ-variation obtained earlier for the full interval basis. In particular the theorem stating that the variational measure generated by an interval function is σ-finite whenever it is absolutely continuous with respect to the Lebesgue measure is extended to any Busemann–Feller basis.

differentiation basisPure mathematicsClass (set theory)Lebesgue measureBasis (linear algebra)Henstock integralApplied MathematicsMathematical analysisvariational measureInterval (mathematics)Absolute continuityInterval functionMeasure (mathematics)δ-variationPerron integralCalculus of variationsAnalysisMathematicsJournal of Mathematical Analysis and Applications
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Generalized heat equation and transitions between different heat-transport regimes in narrow stripes

2019

Abstract In the framework of weakly nonlocal thermodynamic theory, in this paper we derive a nonlocal and nonlinear heat-transport equation beyond the Fourier law by means of thermodynamic considerations in agreement with the second law. The obtained equation describes the transitions among different heat-transport regimes. The stability of the solution of that equation is also analyzed in a special case.

diffusive regimegeneralized heat equation05.70.Ln46.05.+b02 engineering and technologyballistic regime01 natural sciencesStability (probability)010305 fluids & plasmasphonon-hydrodynamic regime0203 mechanical engineering0103 physical sciencesGeneral Materials ScienceSpecial caseCivil and Structural EngineeringPhysicsMechanical EngineeringBallistic regimeCondensed Matter PhysicsNonlinear system020303 mechanical engineering & transportsClassical mechanics66.70.-fMechanics of MaterialsFourier lawHeat equationgeneralized heat equation; diffusive regime; phonon-hydrodynamic regime; ballistic regimeMechanics Research Communications
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