Search results for "Transform"

showing 10 items of 3975 documents

Bodily Transformations and Textual ‘Rape’ in Will Self’s Cock & Bull (1992)

2009

Will SelfBritish Postmodern FictionbodytransformationsSettore L-LIN/10 - Letteratura Inglese
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Relations between multi-resolution analysis and quantum mechanics

2005

We discuss a procedure to construct multiresolution analyses (MRA) of L2 (R) starting from a given seed function h (s) which should satisfy some conditions. Our method, originally related to the quantum mechanical Hamiltonian of the fractional quantum Hall effect, is shown to be model independent. The role of a canonical map between certain canonically conjugate operators is discussed. This clarifies our previous procedure and makes much easier most of the original formulas, producing a convenient framework to produce examples of MRA. © 2005 American Institute of Physics.

WindowsPure mathematicsfast parallelMultiresolution analysisFOS: Physical sciencesStatistical and Nonlinear PhysicsMathematical Physics (math-ph)Quantum Hall effectMathematical Operatorshall effectsymbols.namesakeFractional quantum Hall effectLinear algebrasymbolsMathematical transformationsCanonical mapHamiltonian (quantum mechanics)Settore MAT/07 - Fisica MatematicaQuantumMathematical PhysicsMathematics
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Integrating analytical resolutions in non-targeted wine metabolomics

2015

Direct injection Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS), and ultra-high performance liquid chromatography coupled to mass spectrometry (UPLC/MS) were combined for the non-targeted analysis of wine metabolites. The unrivalled resolution on mass measurement allowed by the former and the separation ability of isomeric and isobaric substances by the latter, clearly increases the scope of detectable unknown metabolites in wines. Such methodology is illustrated through the comparison of chemical spaces of a young and an older Pinot noir wine. RP and HILIC chromatography could reveal up to five isomers for a given mass, throughout the explored mass range. CHO, CHOS …

WineChromatographyResolution (mass spectrometry)ChemistryHydrophilic interaction chromatographydigestive oral and skin physiologyOrganic Chemistryfood and beveragesMass spectrometryBiochemistryHigh-performance liquid chromatographyFourier transform ion cyclotron resonanceMetabolomicsDrug DiscoveryWine chemistryTetrahedron
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Expressing forest origins in the chemical composition of cooperage oak woods and corresponding wines by using FTICR-MS.

2008

A non-targeted, ultra-high-resolution mass spectrometric, direct analysis of oak-wood extracts from two species (Quercus robur L. and Quercus petraea Liebl.) from three French forests, and of a wine aged in barrels derived therefrom has been performed to identify families of metabolites that could discriminate both the species and the geographical origin of woods. From 12 T ultra-high-resolution Fourier transform ion cyclotron resonance mass spectra of wood extracts, hundreds of mass signals were identified as possible significant biomarkers of the two species, with phenolic and carbohydrate moieties leading the differentiation between Q. robur and Q. petraea, respectively, as corroborated …

WineMagnetic Resonance SpectroscopybiologyChemistryOrganic ChemistryAnalytical chemistryWineGeneral Chemistrybiology.organism_classificationMass spectrometryMass spectrometricWoodCatalysisFourier transform ion cyclotron resonanceMass SpectrometryQuercus roburQuercusData Interpretation StatisticalBotanyMass spectrumQuercus petraeaChemical compositionChromatography High Pressure LiquidChemistry (Weinheim an der Bergstrasse, Germany)
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La cultura ci salverà? Processi di touristification a base culturale nel centro storico di Palermo

2023

Negli ultimi tre decenni la cultura ha avuto un ruolo chiave nella costruzione delle politiche urbane, divenendo uno strumento decisivo nella definizione delle strategie di sviluppo economico e nell’accesso alla competizione globale che caratterizzano l’attuale regime di neoliberismo urbano (Miles e Paddison 2005). Anche nel sud Europa la cosiddetta rigenerazione a base culturale ha rappresentato e continua ancora oggi a rappresentare una vera e propria ortodossia urbana, che trova nel turismo tanto una ragione di esistenza quanto un campo di attuazione. In particolare, negli ultimi anni i centri storici di molte città sudeuropee sono stati oggetto di trasformazioni profonde in cui pratiche…

Within this framework Palermo and its historic center are no exception. The epicenter of these processes is represented here by the Kalsa district which since the early 2000s has been placed at the center of a precise strategy of culturally-based renewal called to drive the city's tourist renaissance (Vinci 2008). The culmination of this path came in 2018 when Palermo was named the Italian capital of culture and chosen as the venue for Manifesta one of the most prestigious traveling biennales of contemporary art. However the exponential increase in tourist arrivals in the last three years came to a halt with the outbreak of the pandemic which showed with unprecedented evidence the contradictions of the development strategies pursued in the historic center and the marks they leave on the territories. While this sudden interruption seems to offer an opportunity to radically rethink urban and cultural policies and find new curbs to the conditions of overtourism in which the historic centers of South European cities and beyond find themselves it could also prove to be an accelerator of the dynamics of commodification of these spaces representing the revival of tourism an easy escape route in times of crisis. The objective of this contribution is to critically explore the urban and social transformations that have crossed the Kalsa district of Palermo from the 2000s to the present using qualitative and quantitative techniques (analysis of statistical data in-depth interviews critical discourse analysis ...) with particular reference to the role that culture has played in these processes. While it is impossible to prefigure post-pandemic scenarios we will examine documents and discourses that trace possible development directions for South European cities and their historic centers.Settore ICAR/21 - UrbanisticaSettore M-GGR/01 - Geografia
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Bio-inspired consolidants derived from crystalline nanocellulose for decayed wood

2018

Abstract Novel bio-inspired materials derived from crystalline nanocellulose (CNC) have been tested as wood consolidants. A suspension of CNC, produced by acid hydrolysis of cellulose and used as such or mixed with lignin and/or siloxane derivatives (PDMS), was applied on rotted wood samples of Norway spruce. X-Ray diffraction analysis on CNC powder showed high crystallinity index. Dynamic light scattering (DLS) measurement indicated a nearly uniform particle size distribution with an average hydrodynamic diameter for pure CNC smaller than that in the mixtures. Raman and FTIR spectroscopies suggested interactions between lignin, PDMS and CNC components. The storage modulus of wood samples, …

Wood consolidationMaterials sciencePolymers and PlasticsSettore ICAR/10 - Architettura Tecnica02 engineering and technology010402 general chemistryLignin01 natural sciencesNanocelluloseCrystalline nanocellulosechemistry.chemical_compoundCrystallinityDynamic light scatteringCrystalline nanocellulose Dynamic mechanical analysis Lignin Polydimethylsiloxane Wood consolidationMaterials ChemistryLigninCelluloseFourier transform infrared spectroscopySettore CHIM/02 - Chimica FisicaPolydimethylsiloxaneDynamic mechanical analysisOrganic ChemistryDynamic mechanical analysis021001 nanoscience & nanotechnologySettore ICAR/12 - Tecnologia Dell'Architettura0104 chemical scienceschemistryChemical engineeringSiloxane0210 nano-technologyCarbohydrate Polymers
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Zero-Dimensional Hybrid Organic−Inorganic Lead Halides and Their Post-Synthesis Reversible Transformation into Three-Dimensional Perovskites

2021

Zero-dimensional (0D) mixed-halide hybrid organic-inorganic MA4PbX6·2H2O (MA = CH3NH3+; X = Br1 - xIx with 0 < x < 1) has been synthesized by a solvent-free mechanochemical approach. It has been shown that this 0D phase with sharp absorption features in the near-UV is a hydrated structure, which can be reversibly transformed into the three-dimensional perovskite phase MAPbX3 by simple thermal annealing (dehydration) in air. This work reveals a new approach to hybrid organic-inorganic perovskites and related 0D structures, which have so far only been thoroughly studied for the inorganic Cs4PbX6 compounds. Hetero-structures for Efficient Luminescent Devices (HELD) REFERENCIA: 834431 PCIN-2019…

Work (thermodynamics)010405 organic chemistryChemistryZero (complex analysis)HalideQuímica010402 general chemistryPost synthesis01 natural sciences0104 chemical sciencesInorganic ChemistryTransformation (function)Phase (matter)Physical chemistryPhysical and Theoretical ChemistryAbsorption (chemistry)MaterialsPerovskite (structure)Inorganic Chemistry
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Theoretical efficiency limits for thermoradiative energy conversion

2015

Published version of an article in the journal: Journal of Applied Physics. Also available from the publisher at: http://dx.doi.org/10.1063/1.4907392 A new method to produce electricity from heat called thermoradiative energy conversion is analyzed. The method is based on sustaining a difference in the chemical potential for electron populations above and below an energy gap and let this difference drive a current through an electric circuit. The difference in chemical potential originates from an imbalance in the excitation and de-excitation of electrons across the energy gap. The method has similarities to thermophotovoltaics and conventional photovoltaics. While photovoltaic cells absorb…

Work (thermodynamics)Chemistrybusiness.industryBand gapEnergy conversion efficiencyVDP::Technology: 500General Physics and AstronomyNanotechnologyPhotovoltaic effectEngineering physicsThermal radiationPhotovoltaicsThermophotovoltaicEnergy transformationthermoradiation photovoltaics energy conversionbusiness
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Ray matrix analysis of anamorphic fractional Fourier systems

2006

In this work we extend the application of the ray matrix approach to analyse anamorphic fractional Fourier systems, i.e., fractional Fourier optical systems where the fractional power is different for two orthogonal directions. The application of the ray matrix approach allows for easily obtaining the properties of the optical system, and it is therefore a powerful tool to design and simplify complicated systems. For simplicity we consider fractional Fourier systems with real orders and systems without apertures. We start by presenting the analysis of some previously reported anamorphic Fourier and fractional Fourier systems, and we end by proposing a simple optical system with tunable anam…

Work (thermodynamics)Computer sciencebusiness.industryFourier opticsAtomic and Molecular Physics and OpticsFractional Fourier transformRay tracing (physics)symbols.namesakeMatrix (mathematics)OpticsFourier transformSimple (abstract algebra)symbolsMatrix analysisbusinessJournal of Optics A: Pure and Applied Optics
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Study of thermomagnetic energy conversion driven by renewable energy

2017

Magnetic heating, refrigeration and energy conversion have been defined very important challenges for promising environmentally future choices. Recent studies are focused attention on new thermomagnetic systems, devices working through thermomagnetic effect, driven by renewable energies. The aim of this work is a case study presentation of new thermomagnetic energy prototype coupled with renewable technologies or industrial waste heat. The paper is divided into four sections: the first gives a general state of art about magneto-caloric energy conversion systems, the second describes all general thermodynamics and magnetic laws governing the process, the third and fourth sections study in mo…

Work (thermodynamics)Engineeringbusiness.industry020209 energyRefrigerationMechanical engineering02 engineering and technologyThermomagnetic convection021001 nanoscience & nanotechnologyEngineering physicsRenewable energyGeneral stateCondensed Matter::Superconductivity0202 electrical engineering electronic engineering information engineeringEnergy transformationRenewable technologies0210 nano-technologybusinessMagnetic heating2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&amp;CPS Europe)
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