Search results for " data"

showing 6 items of 7516 documents

Properties of zeros of solutions to third order nonlinear differential equations

2013

We investigate the behavior of zeros of solutions to the certain type of third order nonlinear differential equations. We show that the behavior of zeros may be rather different and depend on the nature of nonlinearity in the equation. Main results in the paper are illustrated with a number of examples.

zeros of solutionsThird order nonlinearDifferential equationMathematical analysisdependence of zeros on initial dataType (model theory)third order nonlinear differential equationsNonlinear systemModeling and SimulationQA1-939super-linearityAnalysisMathematicssub-linearityMathematicsMathematical Modelling and Analysis
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Statistical Approximation of Fourier Transform-IR Spectroscopy Data for Zinc White Pigment from Twentieth-Century Russian Paintings

2017

We present a statistical model for approximation of experimental Fourier transform-IR spectroscopy (FTIR) data for paint samples from paintings of different ages. The model utilizes random variations in some parameters (initial ageing rate, degree of change in ageing rate and time at which the change occurs). We determine the parameters characterizing variation in the paint composition and the storage conditions for the paintings. The numerical calculation is qualitatively consistent with the experimental data. In the proposed model, changes in the initial composition of the paint and the storage conditions make about the same contribution to the experimentally observed scatter in the data …

zinc whiteMineralogyInfrared spectroscopy02 engineering and technology01 natural sciencessymbols.namesakeFourier transform infrared spectroscopySpectroscopySpectroscopyPaintingChemistry010401 analytical chemistryExperimental dataStatistical modelsimulation021001 nanoscience & nanotechnologyCondensed Matter PhysicsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)0104 chemical sciencesComputer Science::GraphicsData pointFourier transformIR spectroscopysymbols0210 nano-technologyIR spectroscopy; dating; zinc white; simulationdatingJournal of Applied Spectroscopy
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L'économie matérielle de la France (1830-2015). L'histoire d'un parasite ?

2018

This article explores the long-term dynamics of material use in France over a period of 185 years. It is based on material flow accounts that are perfectly consistent with the standards of Material Flows Analysis at the national economic scale. This work - which covers domestic extraction, imports and exports - is the first long-term study of material flows for France, with annual and national data for most of the period. Our database allows us to study the evolution of French metabolism during the industrialization of the country, together with the increasing dependence on abiotic materials. We highlight a singular metabolic trajectory: that of a state that benefits from successive world-s…

Écologie monde[SHS.STAT]Humanities and Social Sciences/Methods and statisticsHistoire environnementaleJEL: O - Economic Development Innovation Technological Change and Growth/O.O5 - Economywide Country Studies[SHS.ECO]Humanities and Social Sciences/Economics and FinanceMétabolisme socialJEL: Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q5 - Environmental EconomicsJEL: B - History of Economic Thought Methodology and Heterodox Approaches[SHS.ENVIR] Humanities and Social Sciences/Environmental studies[SHS.HIST] Humanities and Social Sciences/HistoryHistoire économiqueJEL: E - Macroeconomics and Monetary Economics/E.E0 - General/E.E0.E01 - Measurement and Data on National Income and Product Accounts and Wealth • Environmental Accounts[SHS.ENVIR]Humanities and Social Sciences/Environmental studies[SHS.STAT] Humanities and Social Sciences/Methods and statisticsJEL: O - Economic Development Innovation Technological Change and Growth/O.O1 - Economic DevelopmentAnalyse des flux de matièresJEL: F - International Economics/F.F1 - Trade/F.F1.F18 - Trade and Environment[SHS.ECO] Humanities and Social Sciences/Economics and Finance[SHS.HIST]Humanities and Social Sciences/HistoryJEL: N - Economic History
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IME/Índice Médico Español. Perspectivas y retos tras 40 años de tradición bibliográfica en ciencias de la salud (1964-2003).

2004

Al cumplir cuarenta años de pervivencia, la base de datos IME, versión automatizada del repertorio Índice Médico Español, constituye la mayor base de datos bibliográfica sobre publicaciones en ciencias de la salud en español. Actualmente ha iniciado una nueva etapa en la que pretende responder a las nuevas exigencias de la sociedad mediante la incorporación de algunas innovaciones documentales y tecnológicas. Para ello, se ha mejorado el sistema de gestión de la base de datos mediante aplicaciones que permiten el teletrabajo en tiempo real y la actualización constante de los registros. Además, se ha ampliado su cobertura con la incorporación de nuevas revistas, algunas de ellas electrónicas…

Índice Médico Español ; Bases de datos bibliográficas ; Base de datos IME ; Ciencias de la saludIME databaseHealth sciencesUNESCO::LINGÜÍSTICA::Lingüística aplicada::DocumentaciónÍndice Médico EspañolÍndice Médico Español ; Bibliographic data bases ; IME database ; Health sciencesBibliografía:CIENCIAS MÉDICAS [UNESCO]Bases de datosCiencias de la saludBibliographic data basesBase de datos IME:LINGÜÍSTICA::Lingüística aplicada::Documentación [UNESCO]bibliographic data bases IME databaseUNESCO::CIENCIAS MÉDICASBases de datos bibliográficasAutomatización de procesos documentales
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Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period

2016

This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…

Большой адронный коллайдерbackground [beam]Physics::Instrumentation and DetectorsMonte Carlo methodPerformance of high energy physics detectorJet (particle physics)01 natural sciencesHigh Energy Physics - ExperimentSubatomär fysikHigh Energy Physics - Experiment (hep-ex)pressureSubatomic Physicsscattering [p p][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Instrumentationпротон-протонные столкновенияQCMathematical PhysicsPhysicseducation.field_of_studyPerformance of high energy physics detectorsLarge Hadron ColliderSettore FIS/01 - Fisica SperimentaleBeam-intensity monitors; Beam-line instrumentation (beam position and profile monitors; Bunch length monitors); Data analysis; Performance of high energy physics detectors; Instrumentation; Mathematical PhysicsData analysiMonte Carlo [numerical calculations]ATLASbuildingsBunchesCERN LHC CollBeam-intensity monitorBeam-line instrumentation (beam position and profile monitorComputingMethodologies_DOCUMENTANDTEXTPROCESSINGcolliding beams [p p]Particle Physics - ExperimentParticle physicsCiências Naturais::Ciências Físicas530 PhysicsAstrophysics::High Energy Astrophysical PhenomenaPopulation:Ciências Físicas [Ciências Naturais]Beam-line instrumentation (beam position and profile monitorsData analysisFOS: Physical sciencesgapCosmic ray530Bunch length monitors)Nuclear physicsATLAS LHC High Energy Physics510 Mathematics0103 physical sciencesBeam-line instrumentation (beam position and profile monitors;; beam-intensity monitors; bunch length monitors); Data analysis;; Performance of High Energy Physics Detectors; LEPHigh Energy Physicsddc:610010306 general physicseducationMuonScience & Technologycosmic radiation [muon]010308 nuclear & particles physicsFísicaLEPBeam-intensity monitorsghostcorrelationExperimental High Energy PhysicsBeam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); Data analysis; Performance of High Energy Physics DetectorsBeam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors)Physics::Accelerator PhysicsPerformance of High Energy Physics DetectorsATLAS детекторBeam (structure)experimental resultsbeam-line instrumentation
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High frequency data entry: statistical findings at high frequency

2010

We introduce some of the most common types of high-frequency financial data: tick-by-tick data, trade andquote data, order bookdata, andmarket member data. We describe the types of variables that are usually available in the most popular high-frequency financial databases. We discuss the issues related to the handling of these data, including cleaning protocols, timing issues, and issues related to data size. We then briefly consider the issues related to the stylized facts detected in the empirical analysis of high- frequency data. Specifically, we consider (i) the irregular temporal spacing of the events at high frequency and its relevance for the econometric modeling of financial variables, (…

financial markets high-frequency data data analysis tick-by-tick data order bookdata market microstructure econophysicsSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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