Search results for "Low frequency oscillation"

showing 2 items of 2 documents

Influence of the channel design on the heat and mass exchange of induction channel furnace

2011

PurposeThe purpose of this paper is to present in‐depth numerical modelling of heat and mass exchange in industrial induction channel furnace (ICF).Design/methodology/approachThe turbulent heat and mass exchange in the melt is calculated using a three‐dimensional (3D) electromagnetic model and a 3D transient large eddy simulation method. The simulation model has been verified by flow velocity and temperature measurements, which were carried out using an industrial sized channel inductor operating with Wood's metal as a low temperature model melt.FindingsThe ICF is well‐established for melting, holding and casting in the metallurgical industry. But there are still open questions regarding th…

EngineeringElectromagnetic modelsLarge Eddy simulation methodsChannel geometryHeat and mass transferDewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und MaschinenbauMechanical engineeringInductorTemperature measurementModellingMetallurgical industryChannel designExperimentWood's metalMass transferLow temperaturesIndustryMass transferWood's metalElectrical and Electronic Engineeringddc:510Low frequency oscillationsMass exchangeTemperature measurementbusiness.industryApplied MathematicsThree dimensionalFurnaceMechanicsDesign/methodology/approachDewey Decimal Classification::500 | Naturwissenschaften::510 | MathematikComputer Science ApplicationsComputational Theory and MathematicsFlow velocityThree-dimensional (3D)Casting (metalworking)Numerical modellingMetallurgySimulation modelddc:620businessSimulationCommunication channelLarge eddy simulationNumerical analysis
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Acute inactivation of the medial forebrain bundle imposes oscillations in the SNr: a challenge for the 6-OHDA model?

2010

It has been recently shown that the substantia nigra pars reticulata (SNr) of 6-hydroxydopamine (6-OHDA)-lesioned rats, under urethane anaesthesia, manifests a prominent low frequency oscillation (LFO) of around 1Hz, synchronized with cortical slow wave activity (SWA). Nevertheless, it is poorly understood whether these electrophysiological alterations are correlated only with severe dopamine depletion or may also play a relevant pathogenetic role in the early stages of the dopamine denervation. Hence, here we recorded SNr single units and electrocorticogram (ECoG) in two models of dopamine denervation: (i) acute dopamine denervated rats, obtained by injection of tetrodotoxin (TTX), (ii) ch…

MaleTyrosine 3-Monooxygenasebasal ganglia oscillationsDopamineParkinson's diseaseWistarAction PotentialsParkinson's disease; Low frequency oscillation basal ganglia oscillations; Medial forebrain bundle; Tetrodotoxin; ElectrocorticogramTetrodotoxinSettore BIO/09 - FisiologiaParkinson's disease; low frequency oscillation; basal ganglia oscillations; medial forebrain bundle; Tetrodotoxin; electrocorticogramStatistics NonparametricAnimals; Analysis of Variance; Action Potentials; Electrophysiology; Tyrosine 3-Monooxygenase; Cerebral Cortex; Rats; Biological Clocks; Dopamine; Neurons; Rats Wistar; Substantia Nigra; Immunohistochemistry; Medial Forebrain Bundle; Statistics Nonparametric; MaleMedial forebrain bundlechemistry.chemical_compoundDevelopmental NeuroscienceBiological ClocksDopamineBasal gangliamedicineAnimalsNonparametricRats WistarMedial forebrain bundleElectrocorticographyCerebral CortexNeuronsDenervationAnalysis of Variancemedicine.diagnostic_testChemistryStatisticsLow frequency oscillation basal ganglia oscillationElectrocorticogramImmunohistochemistryRatsCortex (botany)ElectrophysiologySubstantia NigraElectrophysiologynervous systemNeurologylow frequency oscillationTetrodotoxinSettore MED/26 - NeurologiaNeurosciencemedicine.drug
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