Search results for "Volt"

showing 10 items of 2187 documents

The ALICE experiment at the CERN LHC

2008

Journal of Instrumentation 3(08), S08002 (2008). doi:10.1088/1748-0221/3/08/S08002

visible and IR photonsLiquid detectorshigh energyPhotonPhysics::Instrumentation and DetectorsTransition radiation detectorsTiming detectors01 natural sciencesOverall mechanics designParticle identificationSoftware architecturesParticle identification methodsGaseous detectorscluster findingDetector cooling and thermo-stabilizationDetector groundingParticle tracking detectors[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Special cablesDetector alignment and calibration methodsDetectors and Experimental TechniquesNuclear ExperimentVoltage distributions.Photon detectors for UVInstrumentationMathematical PhysicsQuantum chromodynamicsPhysicsLarge Hadron ColliderSpectrometersPhysicsDetectorcalibration and fitting methodsTransition radiation detectorScintillatorsData processing methodsAnalysis and statistical methodsData reduction methodsParticle physicsCherenkov and transition radiationTime projection chambers610dE/dx detectorsNuclear physicsCalorimetersPattern recognitionGamma detectors0103 physical sciencesddc:610Solid state detectors010306 general physicsMuonInstrumentation for heavy-ion acceleratorsSpectrometerLarge detector systems for particle and astroparticle physics010308 nuclear & particles physicsCERN; LHC; ALICE; heavy ion; QGPCherenkov detectorsComputingVoltage distributionsManufacturingscintillation and light emission processesanalysis and statistical methods; calorimeters; cherenkov and transition radiation; cherenkov detectors; computing; data processing methods; data reduction methods; de/dx detectors; detector alignment and calibration methods; detector cooling and thermo-stabilization; detector design and construction technologies and materials; detector grounding; gamma detectors; gaseous detectors; instrumentation for heavy-ion accelerators; instrumentation for particle accelerators and storage rings - high energy; large detector systems for particle and astroparticle physics; liquid detectors; manufacturing; overall mechanics design; particle identification methods; particle tracking detectors; pattern recognition; cluster finding; calibration and fitting methods; photon detectors for uv; visible and ir photons; scintillators; scintillation and light emission processes; simulation methods and programs; software architectures; solid state detectors; special cables; spectrometers; time projection chambers; timing detectors; transition radiation detectors; voltage distributionsInstrumentation for particle accelerators and storage ringsInstrumentation; Mathematical PhysicsHigh Energy Physics::ExperimentSimulation methods and programsDetector design and construction technologies and materials
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La volta a botte in curva nel Palazzo Senatorio (Noto)

2013

volta a bottestereotomia NotoSettore ICAR/18 - Storia Dell'Architettura
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Electrical conductivity of glass fiber-reinforced plastic with nanomodified matrix for damage diagnostic

2021

The electrical conductivity of glass fiber-reinforced plastic (GFRP) with epoxy matrix modified by multiwall carbon nanotubes (MWCNT) was studied. The electrical conductivity of nanomodified lamina and multi-layered GFRP was investigated on several levels using a structural approach. Components of the electrical conductivity tensor for unidirectional-reinforced monolayer were calculated similarly as in micromechanics using the conductivity of the nanomodified matrix. The electrical conductivity of multilayer composite was calculated using laminate theory and compared with values measured experimentally for various fiber orientation angles. Calculated and experimental data were in good agree…

voltage distributionTechnologyMaterials scienceGlass fiberCarbon nanotubeConductivityArticlelaw.inventionFracture toughnessmicromechanicsElectrical resistance and conductancelawGeneral Materials ScienceComposite materialinterlaminar fractureMicroscopyQC120-168.85carbon nanotubeselectrical conductivityTQH201-278.5glass fiber reinforced plasticMicromechanicsFracture mechanicsdamage diagnosticFibre-reinforced plasticEngineering (General). Civil engineering (General)TK1-9971Descriptive and experimental mechanicsElectrical engineering. Electronics. Nuclear engineeringTA1-2040
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Experimental Validation of Maximum Constant Boost Control and Switching Frequency Optimal for three-phase Quasi-Z-Source Converters

2020

This paper presents a modified modulation scheme for quasi-Z-Source converters, based on the Maximum Constant Boost Control (MCBC) concept and Switching Frequency Optimal (SFO) as reference signal. The effectiveness of the proposed technique is validated by comparing the obtained results (in terms of AC harmonic content and voltage stress) with those carried out from traditional modulation schemes. For this reason, a test bench has been assembled and the benefits of the SFO MCBC modulation scheme have been valuated.

voltage stressTest benchQuasi-Z-source InverterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciConvertersSignalSettore ING-IND/31 - ElettrotecnicaharmonicThree-phaseModulationControl theorymodulation techniqueHarmonicsHarmonicharmonics modulation techniques Quasi-Z-source Inverter voltage stressMathematicsVoltage2020 2nd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)
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Decoupled control scheme of grid-connected split-source inverters

2017

Grid-connected power conversion systems for renewable energy sources must fulfill several requirements, e.g., the high efficiency, the reduced cost and complexity, and, quite often, the boost capabilities that is usually achieved using a front-end dc–dc boost converter before the inversion stage, leading to a two-stage architecture. Meanwhile, single-stage power conversion systems, which perform the boosting operation within the inversion one, offer some potential advantages, in terms of reducing the complexity and the volume of the whole system. Among several proposed options, the split-source inverter (SSI) has been recently proposed by Abdelhakim et al. as an alternative option with some…

voltage-source inverter (VSI)EngineeringDecoupled control; grid connected; impedance-based inverters; renewable energy sources (RESs); single-stage; space vector; split-source inverter (SSI); synchronous reference frame; voltage-source inverter (VSI); Z-source inverter (ZSI); Control and Systems Engineering; Electrical and Electronic Engineering020209 energyModulation index02 engineering and technologySettore ING-INF/01 - Elettronicasynchronous reference frameControl theoryspace vector0202 electrical engineering electronic engineering information engineeringElectronic engineeringElectrical and Electronic EngineeringMATLABcomputer.programming_languagesplit-source inverter (SSI)Z-source inverter Decoupled control Grid-connected Impedance-based inverters Renewable energy sources Single-stage Space vector Split-source inverter Synchronous reference frame Voltage source inverter Mathematical model Inverters Modulation Switches Voltage control Standards Topologybusiness.industry020208 electrical & electronic engineeringInversion (meteorology)Z-source inverter (ZSI)Gridsingle-stageDecoupled controlControl and Systems Engineeringimpedance-based invertersBoost converterrenewable energy sources (RESs)Invertergrid connectedReduced costbusinesscomputerReference frame
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Dating archaeological copper/bronze artifacts by using the voltammetry of microparticles.

2014

A method for dating copper/bronze archaeological objects aged in atmospheric environments is proposed based on the specific signals for cuprite and tenorite corrosion products measured through the voltammtry of microparticles method. The tenorite/cuprite ratio increased with the corrosion time and fitted to a potential law that yielded a calibration curve usable for dating purposes.

voltammetryCupriteChemistryCalibration curveMetallurgyMineralogychemistry.chemical_elementGeneral ChemistryGeneral Medicineengineering.materialcoinsCopperArchaeologyCatalysisbronzeCorrosioncoppervisual_artanalytical chemistryengineeringvisual_art.visual_art_mediumBronzeVoltammetryAngewandte Chemie (International ed. in English)
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Formaldehyde and total aldehydes in indoor air of public environments by voltammetry

2014

The proposed method involves active sampling, where a sampling pump is used to pull air through a solution and voltammetric analysis of the obtained solutions. No interferences have been observed. In addition, very little sample preparation is required. Analyses were performed in 19 indoor stations and one in outdoor. Measurements were carried out on University environments: Museum of Chemistry, Zoological Museum, libraries, laboratories, corridors, meeting rooms, photocopying room, machine shop and terrace. Formaldehyde concentrations in analyzed samples ranged from 2.6 to 85 μg m-3 (median = 32 μg m-3), while the sum of others aldehydes ranged from 2 to 25 μg m-3 (median =2.4 μg m-3). In …

voltammetryFormaldehydelibrariesmuseumaldehydesindoorSettore CHIM/12 - Chimica Dell'Ambiente E Dei Beni CulturaliFormaldehyde aldehydes indoor libraries museum voltammetry
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Electrochemical sensor for phosphate ions based on laser scriber reduced graphene oxide

2022

This preliminary work shows a new and innovative way to produce laser scribed reduced graphene oxide (LSGO) electrodes using different porous substrates (ranging from paper to plastic and fabric). The obtained electrodes were also tested as electrochemical sensors towards the detection of phosphate ions in water. To obtain the electrodes, a water suspension of GO was filtered on top of substrate (such as Whatman® filter paper) and a complete sensor was obtained from its reduction using a CO2 laser. The electrode is composed of working and counter electrodes made of LSGO and a reference electrode of a Ag/AgCl obtained by using a commercial AgCl conductive paste. Phosphate ions were detected …

voltammetrySettore ING-IND/23 - Chimica Fisica ApplicataElectrochemical sensorPhosphate ionSettore ING-IND/17 - Impianti Industriali MeccaniciVoltammetryPhosphate ionspaper based elecxtrodePaper based electrodesReduced graphene oxideEectrochemical sensorreduced graphene oxide2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
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Micro-determination of dithiocarbamates in pesticide formulations using voltammetry

2013

Abstract The purpose of this work was to develop a reliable method for the micro-determination of dithiocarbamates (mancozeb, maneb, propineb, nabam, Na(CH3)2DTC, zineb, ziram, ferbam and thiram) in pesticide formulations for agriculture using adsorptive stripping voltammetry (AdSV). The accuracy of analytical method was valued by analyzing simulate formulation samples prepared by us with known amounts of active ingredients. In addition, the applicability of the AdSV procedure for the analysis of DTCs and EBDTCs in micro-samples was evaluated by estimating its recoveries from spiked commercial formulate samples. The accuracy, valuated as recovery percentage ranged between 85% and 97%. The p…

voltammetryZiramChromatographyThiramManebformulationPesticideSettore CHIM/12 - Chimica Dell'Ambiente E Dei Beni CulturaliAnalytical Chemistrydithiocarbamatechemistry.chemical_compoundchemistryZinebAdsorptive stripping voltammetrySettore CHIM/01 - Chimica AnaliticaMancozebVoltammetryMicro determinationpesticideSpectroscopyMicrochemical Journal
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Voltammetric determination of platinum in perfusate and blood: Preliminary data on pharmacokinetic study of arterial infusion with oxaliplatin

2012

Abstract Because Platinum Group Elements have found widespread use in catalytic converters in cars and as chemotherapeutic agent, interest in the development of reliable analytical methods is carried out in order to monitor these analita in humans to protect the citizen's health. Considering that information on the levels of many trace elements in biological matrices is scarce and for many non-essential elements, baseline levels in the population, and especially in those particularly exposed to the risk are lacking, in this paper we optimize an analytical method for biological matrices, using a voltammetric technique to measure the concentration of Pt in blood and perfusate. The amount of P…

voltammetryeducation.field_of_studyChromatographyPopulationAnalytical chemistryPtchemistry.chemical_elementBiological materialsAnalytical ChemistryOxaliplatinchemistryPharmacokineticsbloodperfusatemedicineSettore CHIM/01 - Chimica AnaliticaIn patientPlatinumeducationVoltammetrySpectroscopyTarget organmedicine.drugMicrochemical Journal
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