Search results for " classification"

showing 10 items of 1043 documents

Grandmother cells: much ado about nothing

2016

International audience; We do not dispute the possibility of the existence in the brain of “grandmother cells”, which are very finely tuned neurons that fire only in the presence of specific objects or categories. However, we question the causal efficacy of such neurons at the functional or behaviour level. We claim that, even though very familiar items, such as “my grandmother”, may well have associated grandmother neurons, these neurons have very little, or no impact on the actual recognition of my grandmother. A study by Thomas, Van Hulle, and Vogels [(2002). Encoding of categories by noncategory-specific neurons in the inferior temporal cortex. Journal of Cognitive Neuroscience, 13, 190…

Linguistics and LanguageCognitive NeuroscienceExperimental and Cognitive PsychologyCognitive neuroscience050105 experimental psychologyLanguage and Linguistics03 medical and health sciences0302 clinical medicineCategory-specific deficitsNothingCausal efficacyEncoding (semiotics)0501 psychology and cognitive sciencesTemporal cortexCommunicationbusiness.industry[SCCO.NEUR]Cognitive science/Neuroscience05 social sciencesGrandmother cellsCategory-specific neuronsnervous system[ SCCO.NEUR ] Cognitive science/NeuroscienceCausal efficacybusinessPsychologyNeuroscience030217 neurology & neurosurgeryTree/non-tree classification
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Particle transport in recirculated liquid metal flows

2008

PurposeAims to present recent activities in numerical modeling of turbulent transport processes in induction crucible furnace.Design/methodology/approach3D large eddy simulation (LES) method was applied for fluid flow modeling in a cylindrical container and transport of 30,000 particles was investigated with Lagrangian approach.FindingsParticle accumulation near the side crucible boundary is determined mainly by the ρp/ρ ratio and according to the presented results. Particle settling velocity is of the same order as characteristic melt flow velocity. Particle concentration homogenization time depends on the internal flow regime. Separate particle tracks introduce very intensive mass exchang…

Liquid metalMaterials scienceFurnacesDewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und MaschinenbauMechanical engineeringHomogenization (chemistry)ModellingPhysics::Fluid DynamicsSettlingRecirculated liquid metal flowsFluid dynamicsddc:510Electrical and Electronic EngineeringCrucible furnacesMelt flow indexTurbulent transport processesInternal flowTurbulenceApplied MathematicsLarge eddy simulationParticle physicsMechanicsComputer simulationDewey Decimal Classification::500 | Naturwissenschaften::510 | MathematikComputer Science ApplicationsComputational Theory and Mathematicsddc:620SimulationLiquid metalsNumerical analysisParticles (particulate matter)Large eddy simulationCOMPEL - The international journal for computation and mathematics in electrical and electronic engineering
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Numerical and experimental study of liquid metal stirring by rotating permanent magnets

2018

In this work, we study liquid gallium stirring by rotating permanent magnets. We demonstrate possibility of easily creating different flow patterns by rotating permanent magnets, which can be industrially important for controlling heat and mass transfer processes in the system. Unlike the typical approach of simulating magnet rotation as a transient problem and time-averaging the Lorentz forces, we solve the magnet rotation as a harmonic (frequency domain) problem, which leads to forces equal to time-averaged ones and decreases the simulation time considerably. Numerical results are validated using qualitative flow structure results from the neutron radiography visualization of tracer parti…

Liquid metalMaterials sciencePermanent magnetsNumerical modelsUltrasonic Doppler velocimeters02 engineering and technologyQuantitative dataRotationHeat and mass transfer process020501 mining & metallurgyPhysics::Fluid DynamicsMagnetohydrodynamicssymbols.namesakeFrequency domainsneutron radiographyLiquid metal stirringTransient problemsFrequency domain analysisddc:530Mass transferUDVMagnetic materialsMetal meltingNumerical and experimental studyData visualizationnumerical modellingMechanicsVelocimetry0205 materials engineeringFrequency domainMagnetNumerical resultsHarmonicsymbolsUltrasound Doppler velocimetryDewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikTransient (oscillation)Lorentz forceLiquid metalsIOP Conference Series: Materials Science and Engineering
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Local Tourism System in Sicily: a proposal for the identification through spatial classification with the constraints of contiguity

2012

The theoretical approach to Tourism Economics is based on the systemic nature of tourism, stemming both from the heterogeneity of the tourist package and from the existing complex interactions among destinations, firms, tourists. The systemic nature of tourism and the identification with its geographical representation, that is the destination, introduce the concept of Local Tourist System (LTS). This systemic nature has also been recognized by the Italian legislation by creating of an economic policy instrument, named Local Tourist System: “We call local tourist systems, homogeneous or integrated tourist environments, which include territories belonging even to different regions characteri…

Local Tourist System spatial classificationSettore SECS-S/03 - Statistica Economica
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Superconducting Solenoid System with Adjustable Shielding Factor for Precision Measurements of the Properties of the Antiproton

2019

Physical review applied 12(4), 044012 (2019). doi:10.1103/PhysRevApplied.12.044012

MAGNETIC-MOMENTSpeichertechnik - Abteilung BlaumPenning trapNuclear engineeringGeneral Physics and Astronomy02 engineering and technologyPROTON53001 natural sciencesNoise (electronics)Physics AppliedTrap (computing)External magnetic field0103 physical sciencesPENNING TRAP TECHNIQUEFACILITYddc:530Physics::Atomic PhysicsSolenoidsDetectors and Experimental TechniquesNuclear Experiment010306 general physicsSuperconductivityPhysicsScience & TechnologyLarge Hadron ColliderPhysics021001 nanoscience & nanotechnologyMagnetic fieldElectromagnetic coilAntiprotonPhysical SciencesMagnetic momentsElectromagnetic shieldingPhysics::Accelerator PhysicsCharge-to-mass ratiosDewey Decimal Classification::500 | Naturwissenschaften::530 | PhysikATOMIC MASSPARTICLE0210 nano-technologyMASS MEASUREMENTSPhysical Review Applied
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National fiscal consolidations and regional inequality in Europe

2016

Using annual data for 13 European countries over the period 1980-2008, we assess the impact of national fiscal consolidations on the income inequality of European regions. Regional dispersion increases in the outcome of consolidation episodes, particularly, when packages are more severe and implemented through spending cuts rather than tax rises. From a policy perspective, these findings suggest that fiscal consolidations driven by reductions in government spending can exacerbate regional disparities and may ultimately counteract the European policy efforts to promote territorial cohesion. Our results are robust to alternative inequality measures, the occurrence of crisis episodes and the e…

MacroeconomicsEconomics and EconometricEconomics and EconometricsSociology and Political ScienceInequalitymedia_common.quotation_subjectGeography Planning and Development0211 other engineering and technologies02 engineering and technologyfiscal consolidationregional inequalityConsolidation (business)Economic inequality0502 economics and businessDevelopment economicsEconomics050207 economicsmedia_commonGovernment spending05 social sciences1. No povertySettore SECS-P/02 Politica Economica021107 urban & regional planningR1Fiscal unionEuropean policyEurope JEL Classifications: D638. Economic growthE62E64Cambridge Journal of Regions, Economy and Society
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MEDIUM-TERM DETERMINANTS OF INTERNATIONAL INVESTMENT POSITIONS: THE ROLE OF STRUCTURAL POLICIES

2012

This paper provides an empirical investigation of the medium-term determinants of international investment positions for a large sample of advanced and emerging economies. In addition to the usually considered drivers of foreign assets and liabilities, the analysis focuses on the role of structural policy indicators. Using cross-section and panel regression techniques the results suggest that structural policy settings are important medium-term drivers of capital flows, having a relatively large impact on gross and net foreign capital positions and on their composition. In particular, the results suggest that certain kinds of structural policy reform could help to narrow global imbalances,…

MacroeconomicsEconomics and EconometricsInternational investmentInvestment PositionsForeign capitalGlobal imbalancesGeneral Business Management and AccountingMedium termF21 JEL Classifications: E6 [Capital flows structural policies global imbalances JEL Classifications]EconomicsCapital employedCapital flowsEmerging marketsFinancePanel dataJournal of International Commerce, Economics and Policy
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IC3D Classification of Corneal Dystrophies—Edition 2

2015

To update the 2008 International Classification of Corneal Dystrophies (IC3D) incorporating new clinical, histopathologic, and genetic information.The IC3D reviewed worldwide peer-reviewed articles for new information on corneal dystrophies published between 2008 and 2014. Using this information, corneal dystrophy templates and anatomic classification were updated. New clinical, histopathologic, and confocal photographs were added.On the basis of revisiting the cellular origin of corneal dystrophy, a modified anatomic classification is proposed consisting of (1) epithelial and subepithelial dystrophies, (2) epithelial-stromal TGFBI dystrophies, (3) stromal dystrophies, and (4) endothelial d…

Macular corneal dystrophygenetic structuresEndothelial dystrophiesGenetic diseaseStromaEpitheliumGelatinousdrop-like corneal dystrophyCorneaLisch Epithelial Corneal DystrophyCornea pathologyPosteror polymorphous corneal dystrophyCorneal Dystrophies HereditaryPosterior amorphous corneal dystrophyEpithelial-stromal TGFBI dystrophiesMacular corneal dystrophyFleck corneal dystrophyLattice corneal dystrophyPre-Descemet corneal dystrophyCongenital stromal corneal dystrophySubepithelialmucinous corneal dystrophySchnyder corneal dystrophyThiel-Behnke corneal dystrophyPosterior polymorphous corneal dystrophyEpithelial and subepithelial dystrophiesFuchsendothelial corneal dystrophyFleck corneal dystrophyReis-Bücklers corneal dystrophyCongenital hereditary endothelial dystrophyCentralcloudy dystrophy of FrançoisCongenital stromal corneal dystrophyPosterior amorphous corneal dystrophymedicine.medical_specialtyHistologyeducationHereditary diseaseHistopathologyBiologyKeratoconusLisch epithelial corneal dystrophyMeesmann dystrophyNOBowman membraneDescemetmembraneInternational Classification of DiseasesTerminology as TopicOphthalmologyGeneticsmedicineHumansBowman membrane; Centralcloudy dystrophy of François; Confocal microscopy; Confocal microscopy; Congenital corneal endothelial dystrophy and X-linked endothelialdystrophy; Congenital stromal corneal dystrophy; Cornea; Cornea; Cornea dystrophy; Cornea pathology; Descemetmembrane; Endothelial dystrophies; Endothelium; Epithelial and subepithelial dystrophies; Epithelial basement membranedystrophy; Epithelial recurrent erosion dystrophies; Epithelial-stromal TGFBI dystrophies; Epithelium; Fleck corneal dystrophy; Fuchsendothelial corneal dystrophy; Gelatinousdrop-like corneal dystrophy; Genetic disease; Genetics; Granular corneal dystrophy type 1; Granular corneal dystrophy type 2; Hereditary disease; Histology; Histopathology; Keratoconus; Lattice corneal dystrophy; Lisch epithelial corneal dystrophy; Macular corneal dystrophy; Meesmann dystrophy; Posterior amorphous corneal dystrophy; Posteror polymorphous corneal dystrophy; Pre-Descemet corneal dystrophy; Reis-Bücklers corneal dystrophy; Schnyder corneal dystrophy; Stroma; Stromal dystrophies; Subepithelialmucinous corneal dystrophy; TGFBI; Thiel-Behnke corneal dystrophy; OphthalmologyEndotheliumEpithelial basement membranedystrophyCornea dystrophyCongenital corneal endothelial dystrophy and X-linked endothelialdystrophymedicine.diseaseeye diseasesConfocal microscopyOphthalmologyGranular corneal dystrophy type 2Granular corneal dystrophy type 1Stromal dystrophiesLattice corneal dystrophysense organsTGFBIEpithelial recurrent erosion dystrophiesCornea
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Structural characterization and chemical classification of some bryophytes found in Latvia.

2013

Bryophytes are the second largest taxonomic group in the plant kingdom; yet, studies conducted to better understand their chemical composition are rare. The aim of this study was to characterize the chemical composition of bryophytes common in Northern Europe by using elemental, spectral, and non-destructive analytical methods, such as Fourier transform IR spectrometry (FT-IR), solid-phase (13) C-NMR spectrometry, and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), for the purpose of investigating their chemotaxonomic relationships on the basis of chemical-composition data. The results of all these analyses showed that bryophytes consist mainly of carbohydrates. Judging by FT-IR …

Magnetic Resonance SpectroscopyCarbohydratesBioengineeringGeneral ChemistryGeneral MedicineBryophytaChemical classificationMass spectrometryBiochemistryLatviaGas Chromatography-Mass SpectrometryCharacterization (materials science)chemistry.chemical_compoundchemistryChemotaxonomyEnvironmental chemistryBotanySpectroscopy Fourier Transform InfraredMolecular MedicineLigninCluster AnalysisBryophyteMolecular BiologyChemical compositionChemistrybiodiversity
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Hyperspectral detection of citrus damage with Mahalanobis kernel classifier

2007

Presented is a full computer vision system for the identification of post-harvest damage in citrus packing houses. The method is based on the combined use of hyperspectral images and the Mahalanobis kernel classifier. More accurate and reliable results compared to other methods are obtained in several scenarios and acquired images.

Mahalanobis distanceContextual image classificationbusiness.industryComputer scienceHyperspectral imagingPattern recognitionObject detectionSupport vector machineKernel (linear algebra)Kernel methodKernel (image processing)Computer visionArtificial intelligenceElectrical and Electronic EngineeringbusinessClassifier (UML)
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