Search results for " fisica"

showing 10 items of 4804 documents

How news affect the trading behavior of different categories of investors in a financial market

2015

We investigate the trading behavior of a large set of single investors trading the highly liquid Nokia stock over the period 2003-2008 with the aim of determining the relative role of endogenous and exogenous factors that may affect their behavior. As endogenous factors we consider returns and volatility, whereas the exogenous factors we use are the total daily number of news and a semantic variable based on a sentiment analysis of news. Linear regression and partial correlation analysis of data show that different categories of investors are differently correlated to these factors. Governmental and non profit organizations are weakly sensitive to news and returns or volatility, and, typica…

ta511Statistical Finance (q-fin.ST)Endogenous Factorsta114Sentiment analysisFinancial marketQuantitative Finance - Statistical FinanceNon profitFinancial marketInvestor behaviourSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Heterogeneity of agentFOS: Economics and businessSettore SECS-S/06 -Metodi Mat. dell'Economia e d. Scienze Attuariali e Finanz.Linear regressionEconometricsEconomicsVolatility (finance)Explanatory powerInformation in capital marketGeneral Economics Econometrics and FinanceFinanceStock (geology)health care economics and organizationsEmpirical time series analysis
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Tecar-therapy in the low back pain in acute phase: our experience.

2010

tecar-therapylow back painSettore MED/34 - Medicina Fisica E Riabilitativa
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Injury and Throwing Distance in Teenage Cyclist- Vehicle Crash

2016

The study of the injury caused by vehicle-teenage cyclist crash is presented in this paper. The results of the crash with three vehicles: sedan, SUV and Pick up are compared. Three different positions are analyzed: front, rear and lateral position. The injury on the cyclist head is examined by HIC criterion, in the way indicated by the rules. A comparison is done between the results of the simulations for Pick up, SUV and sedan, concluding that the injury of the head is more dangerous for Pick-up impact than SUV or the sedan, but only at greater speed than 40 km/h. Teenage cyclist is more likely to suffer an injury to the chest in rear impacts with the sedan, because 3 ms values remain abov…

teenage bicyclistSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchine3msSettore ING-IND/10 - Fisica Tecnica Industrialevehicle impactteenage bicyclist; vehicle impact;(AIS4+) injury; HIC; 3ms; throwing distance; biomechanics(AIS4+) injuryteenage bicyclist vehicle impact (AIS4+) injury HIC 3ms throwing distance biomechanicsHICbiomechanicsthrowing distance
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Teenage cyclist - Pick up crash by multibody simulation; HIC evaluation and comparison with previous results

2016

The study of the injury caused by Pick-up vehicle-teenage cyclist crash is presented in this paper. The vehicle has high frontal part, in order to compare the results with those obtained previously in the sedan and SUV - teenage cyclist crash. No variation is executed on the model of the teenage cyclist and the bike. Three different positions are analyzed: front, rear and lateral position. The injury on the cyclist head is examined by HIC criterion, in the way indicated in the rules. Correlation HIC – AIS is used to calculate the lethality of the injuries. A comparison is made between the results of the simulations for Pick up, SUV and sedan, concluding that the injury of the head is more d…

teenage bicyclistSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineSettore ING-IND/10 - Fisica Tecnica Industrialeteenage bicyclist Pick-up impact severe (AIS4+) injury HIC biomechanicsPick-up impactHICbiomechanicsteenage bicyclist; Pick-up impact; severe (AIS4+) injury; HIC; biomechanicssevere (AIS4+) injury
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Biomechanics Parameters in Teenage Cyclist – SUV Accident and Comparison with the Pedestrian

2015

The study of the injury caused by the vehicle-teenage cyclist crash is presented in this paper. The vehicle is a SUV, with high frontal part, in order to compare the results with those obtained previously in the sedan- teenage cyclist crash and begin a study of the influence of the frontal shape of the vehicle. No variation is executed on the model of the teenage cyclist and the bike. Three different positions are analyzed: front, rear and lateral position. The injury on the cyclist head is examined by HIC criterion, in the way indicated in the rules. Correlation HIC – AIS is used to calculate the lethality of the injuries. The principal conclusion is done that the injury of the head is mor…

teenage bicyclistSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchinesedan impactteenage bicyclist SUV impact sedan impact severe (AIS4+) injury HICteenage bicyclist; SUV impact; sedan impact; severe (AIS4+) injury; HICSettore ING-IND/10 - Fisica Tecnica IndustrialeSUV impactHICsevere (AIS4+) injury
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A New Theoretical Approach on Teenage Cyclist-Vehicle Crash

2016

Data obtained in teenage cyclist impact against three vehicles (sedan, SUV and Pick Up), tested in previous works, are analyzed to verify the theoretical results by the coupling of momentum conservation principle and energy conservation principle. The speed of vehicle and thorax are compared with theoretical ones, obtaining an excellent agreement. Following the results found in the literature, particular emphasis is done on teenager cyclist thorax and head speeds, indicating that the cyclist speed can be theoretically until 1,41 times the impact speed, while greater values, until 2, are obtained in the simulations. A small slowing of the vehicle is found theoretically and in the simulations…

teenage bicyclist; vehicle impact; front vehicle shape; mass influence; theory of impactteenage bicyclistSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineSettore ING-IND/10 - Fisica Tecnica Industrialevehicle impactteenage bicyclist vehicle impact front vehicle shape mass influence theory of impactmass influencetheory of impactSettore ING-IND/16 - Tecnologie E Sistemi Di Lavorazionefront vehicle shape
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Indistinguishability of Elementary Systems as a Resource for Quantum Information Processing.

2017

Typical elements of quantum networks are made by identical systems, which are the basic particles constituting a resource for quantum information processing. Whether the indistinguishability due to particle identity is an exploitable quantum resource remains an open issue. Here we study independently prepared identical particles showing that, when they spatially overlap, an operational entanglement exists which can be made manifest by means of separated localized measurements. We prove this entanglement is physical in that it can be directly exploited to activate quantum information protocols, such as teleportation. These results establish that particle indistinguishability is a utilizable …

teleportationQuantum PhysicsQuantum networkComputer scienceIdentical particles: Quantum EntanglementFOS: Physical sciencesGeneral Physics and AstronomyQuantum entanglement01 natural sciencesTeleportationSettore FIS/03 - Fisica Della Materia010305 fluids & plasmas0103 physical sciencesQuantum information processingIdentity (object-oriented programming)ParticleStatistical physicsQuantum informationQuantum Physics (quant-ph)010306 general physicsQuantumIdentical particlesPhysical review letters
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Performance of Lead-Acid Batteries with Nanostructured Electrodes at Different Temperature

2018

In this work we present innovative lead-acid batteries with nanostructured electrodes, which are cycled in a wide range of temperatures typically of lead-acid commercial batteries (EN 61427-1: 2013). In comparison to parameters usually used to commercial batteries, much more stressful conditions in terms of cut-off, charge/discharge rate and discharge were imposed.

temperature testMaterials sciencenanostructureRenewable Energy Sustainability and the Environmentnanovireslead acid batterieEnergy Engineering and Power TechnologyComputer Science Applications1707 Computer Vision and Pattern RecognitionNanotechnologystate of chargeIndustrial and Manufacturing Engineeringtemplate electrosynthesiDischarge rateComputer Networks and CommunicationSettore ING-IND/23 - Chimica Fisica ApplicataState of chargeArtificial IntelligenceLead acid batteryElectrodeLead–acid batterynano technologyInstrumentationnanostructured electrodeperformance2018 IEEE 4th International Forum on Research and Technology for Society and Industry (RTSI)
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High-Performance Lead-Acid Batteries Enabled by Pb and PbO2 Nanostructured Electrodes: Effect of Operating Temperature

2021

Lead-acid batteries are now widely used for energy storage, as result of an established and reliable technology. In the last decade, several studies have been carried out to improve the performance of this type of batteries, with the main objective to replace the conventional plates with innovative electrodes with improved stability, increased capacity and a larger active surface. Such studies ultimately aim to improve the kinetics of electrochemical conversion reactions at the electrode-solution interface and to guarantee a good electrical continuity during the repeated charge/discharge cycles. To achieve these objectives, our contribution focuses on the employment of nanostructured electr…

temperature testTechnologyMaterials scienceQH301-705.5template electrodepositionQC1-999Nanotechnology02 engineering and technology010402 general chemistryElectrosynthesis01 natural sciencesEnergy storageHigh C-rate cycling Lead nanowires Lead-acid battery Nanostructures cycling efficiency Temperature test Template electrodepositionOperating temperatureSettore ING-IND/17 - Impianti Industriali MeccaniciGeneral Materials ScienceBiology (General)Lead–acid batteryInstrumentationQD1-999Separator (electricity)Fluid Flow and Transfer Processeshigh C-rate cyclingNanoporouslead-acid batteryProcess Chemistry and TechnologyTPhysicsGeneral Engineeringlead nanowiresActive surface021001 nanoscience & nanotechnologyEngineering (General). Civil engineering (General)0104 chemical sciencesComputer Science ApplicationsChemistrySettore ING-IND/23 - Chimica Fisica ApplicataElectrodenanostructures cycling efficiencyTA1-20400210 nano-technologyApplied Sciences
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ELECTROCHEMICAL H2O2 SENSORS BASED ON Pd and Cu NANOSTRUCUTERS

2018

In the last decades, with the fast improvement of electronics, the field of sensors is highly expanding. The basic idea of sensors is to detect something and then trigger a corresponding action. This simple, but very important, concept can be used in different fields: from chemical industries to farms, from the environmental monitoring [1] to a point of care analysis [2]. Currently, talking about sensing of chemical species, different techniques are used, such as Atomic Absorption Spectroscopy (AAS), Graphite Furnace Atomic Absorption Spectroscopy (GFAAS), Inductively Coupled Plasma Mass Spectroscopy (ICP-MS), IR spectroscopy, redox titration and so on. Despite they are highly efficient in …

template electrosynthesisSettore ING-IND/23 - Chimica Fisica Applicatananostructureelectrochemical sensorHydroge peroxide
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