Search results for " Limit"

showing 10 items of 1716 documents

Passive time-multiplexing super-resolved technique for axially moving targets

2013

In this paper we present a super-resolving approach for detecting an axially moving target that is based upon a time-multiplexing concept and that overcomes the diffraction limit set by the optics of an imaging camera by a priori knowledge of the high-resolution background in front of which the target is moving. As the movement trajectory is axial, the approach can be applied to targets that are approaching or moving away from the camera. By recording a set of low-resolution images at different target axial positions, the super-resolving algorithm weights each image by demultiplexing them using the high-resolution background image and provides a super-resolved image of the target. Theoretic…

Synthetic aperture radarPhysicsbusiness.industryComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONsuper-resolutionMultiplexingAtomic and Molecular Physics and Opticstime-multiplexingOpticsComputer Science::Computer Vision and Pattern RecognitionMedical imagingTrajectoryA priori and a posterioriElectrical and Electronic EngineeringLimit setdiffraction limitbusinessAxial symmetryEngineering (miscellaneous)Image resolutionsuper-resolvedApplied Optics
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Combined use of liquid chromatography triple quadrupole mass spectrometry and liquid chromatography quadrupole time-of-flight mass spectrometry in sy…

2012

As a suitable way for routine screening of pesticides and control of other organic contaminants in water, the combination of liquid chromatography triple quadrupole tandem mass spectrometry (LC-QqQ-MS/MS) and liquid chromatography-hybrid quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) has been applied to the analysis of 63 surface and waste water samples after conventional solid-phase extraction (SPE). The extracts were screened for 43 pesticides or degradation products by LC-QqQ-MS/MS achieving limits of detection (LOD) ranged from 0.04 to 2 ng L(-1). Of the 43 selected pesticides, 33 were detected in water samples. The ESI-QTOF MS instrument was run using two simultaneous acquisi…

Tandem mass spectrometryMass spectrometryBiochemistryAnalytical ChemistryLC–MS/MSLimit of DetectionTandem Mass SpectrometryEnvironmental ChemistrySample preparationSolid phase extractionPesticidesChromatography High Pressure LiquidSpectroscopyDetection limitChromatographyChemistrySolid Phase ExtractionExtraction (chemistry)WaterSurface waterTriple quadrupole mass spectrometerLC–QTOF MSMass spectrumOrganic pollutantsWaste waterWater Pollutants ChemicalAnalytica Chimica Acta
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Day-to-Day Variability and Year-to-Year Reproducibility of Accelerometer-Measured Free-Living Sit-to-Stand Transitions Volume and Intensity among Com…

2021

(1) Background: The purpose of this study was to evaluate the day-to-day variability and year-to-year reproducibility of an accelerometer-based algorithm for sit-to-stand (STS) transitions in a free-living environment among community-dwelling older adults. (2) Methods: Free-living thigh-worn accelerometry was recorded for three to seven days in 86 (women n = 55) community-dwelling older adults, on two occasions separated by one year, to evaluate the long-term consistency of free-living behavior. (3) Results: Year-to-year intraclass correlation coefficients (ICC) for the number of STS transitions were 0.79 (95% confidence interval, 0.70-0.86, p < 0.001), for mean angular velocity-0.81 (95% c…

TechnologyACCURACYTP1-1185mobility limitationEngineeringAGEAccelerometryHumansKINEMATICSInstruments & InstrumentationAgedScience & TechnologyChemical technologyCommunicationDISABILITYMORTALITYChemistry AnalyticalReproducibility of ResultsliikuntarajoitteetEngineering Electrical & Electronictest-retestmittausmenetelmätChemistryLOWER-EXTREMITY FUNCTIONPHYSICAL-ACTIVITYThighPhysical SciencesYOUNGFemaleIndependent LivingTEST-RETEST RELIABILITYBODY FIXED SENSORchair risetest–retestfyysinen aktiivisuusikääntyneet
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Overview of first Wendelstein 7-X high-performance operation

2019

Abstract The optimized superconducting stellarator device Wendelstein 7-X (with major radius , minor radius , and plasma volume) restarted operation after the assembly of a graphite heat shield and 10 inertially cooled island divertor modules. This paper reports on the results from the first high-performance plasma operation. Glow discharge conditioning and ECRH conditioning discharges in helium turned out to be important for density and edge radiation control. Plasma densities of with central electron temperatures were routinely achieved with hydrogen gas fueling, frequently terminated by a radiative collapse. In a first stage, plasma densities up to were reached with hydrogen pellet injec…

TechnologyCONFINEMENT01 natural sciencesimpurities010305 fluids & plasmaslaw.inventionECR heatingDivertorDENSITY LIMITlawData_FILESGeneralLiterature_REFERENCE(e.g.dictionariesencyclopediasglossaries)004 Datenverarbeitung; InformatikPhysicsGlow dischargeDivertorCondensed Matter PhysicsContent (measure theory)ComputingMethodologies_DOCUMENTANDTEXTPROCESSINGElectron temperatureAtomic physicsddc:620StellaratorImpuritiesNuclear and High Energy PhysicsTechnology and Engineeringplasma performancechemistry.chemical_elementAtmospheric-pressure plasmaPHYSICSstellaratorPhysics::Plasma PhysicsNBI heating0103 physical sciencesdivertor010306 general physicsHeliumStellaratorPlasma performanceturbulenceFísicaW7-XTurbulenceTheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGESchemistryddc:004ddc:600Energy (signal processing)SYSTEMNuclear Fusion
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In-Vitro Investigation of Fatigue and Fracture Behavior of Transmucosal versus Submerged Bone Level Implants Used in Fixed Prosthesis

2021

Background: The present in vitro study aimed to investigate the fatigue performance of different dental fixtures in two different emergence profiles. Biological failures are frequently reported because the problem canonly be solved by replacing a failing implant with a new one. Clinicians addressed minor mechanical failures, such as bending, loosening or the fracture of screws, abutment, or the entire prosthesis, by simply replacing or fixing them. Methods: Transmucosal and submerged bone-level dental implants underwent fatigue strength tests (statical and dynamical performance) by a standardized test: UNI EN ISO 14801:2016. Two types of emergence profiles (Premium sub-crestal straight impl…

TechnologyQH301-705.5QC1-999medicine.medical_treatmentProsthesis03 medical and health sciences0302 clinical medicinemedicineimplant fractureUltimate failureGeneral Materials ScienceBiology (General)QD1-999InstrumentationMathematicsFluid Flow and Transfer ProcessesOrthodonticstransmucosal implantTPhysicsProcess Chemistry and TechnologyGeneral EngineeringNonparametric statistics030206 dentistryfatigue testEngineering (General). Civil engineering (General)Fatigue limitComputer Science ApplicationsChemistryCoronal planeFracture (geology)ImplantTA1-2040submerged bone-level implant neckAbutment (dentistry)030217 neurology & neurosurgeryApplied Sciences
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Il ruolo del white paper sulle offerte al pubblico di cripto-attività alla luce della proposta MiCA

2022

La proposta MiCA, nel regolare il white paper sulle offerte di crypto-assets, sembra tenere in considerazione i benefici e i limiti dei sistemi di voluntary e di mandatory disclosure, non optando integralmente né per il primo, né per il secondo. In quest’ottica, se può condividersi l’approccio regolamentare diretto a graduare, a seconda della tipologia di token offerto, sia il contenuto che l’assoggettamento del documento a mera notifica o ad approvazione ex ante da parte dell’Autorità competente, dubbi sorgono in ordine all’indistinta allocazione dell’onere della prova in capo all’oblato, nei casi di violazione della disciplina del relativo white paper.

The MiCa proposal in the regular white paper on crypto-assets offerings seems to take into account the benefits and limitations of voluntary and mandatory disclosure systems not opting for either the former or the latter in full. On one hand one can agree with the regulatory approach aimed at adapting the content of the white paper to the type of token offered and at making the white paper either subject to mere notification or to the approval by the competent Authority depending on the asset offered. On the other hand doubts arise on the indistinct allocation of the burden of proof to the user in case of infringement of the relevant white paper framework.Settore IUS/04 - Diritto Commerciale
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La recente riforma della disciplina italiana del subappalto nella prospettiva del bid rigging

2023

L’articolo analizza in chiave critica la disciplina nazionale del subappalto nell’ambito delle gare pubbliche, così come recentemente riformata a seguito di diversi interventi normativi in ottemperanza alla procedura d’infrazione avviata dalla Commissione UE. Stando alla tesi dell’A., l’attuale quadro normativo – caratterizzato dalla quasi totale eliminazione delle limitazioni previgenti (probabilmente anche spingendosi oltre ciò che la Commissione UE ha richiesto) – difetta nel trovare un equo bilanciamento tra il principio della massima partecipazione alla gara, da un lato, e l’esigenza di prevenire e svelare potenziali condotte collusive, dall’altro. La suddetta conclusione, peraltro, ap…

The article critically analyzes the Italian regulation of subcontracting in the context of public tenders as recently amended by several legislative measures in compliance with the infringement procedure launched by the European Commission against Italy. According to the Author’s view the current legislative framework – characterized by the almost overall elimination of the previous limits (probably even going beyond what the European Commission requested) – lacks in finding a fair balance between the principle of the maximum participation in the tender on the one hand and the need to prevent and reveal potential collusive conduct on the other. Furthermore this conclusion is supported by the analysis of the regulation of the causes of exclusion from the tender still too timid in envisaging the optional exclusion of the participants due to anticompetitive conduct.
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Tutela e sicurezza del lavoro tra centro e periferia: la sicurezza sui luoghi di lavoro

2013

Il saggio prende in esame la complessa questione del riparto di competenze tra Stato e Regioni alla luce del Titolo V della Costituzione in materia di salute e sicurezza sui luoghi di lavoro. Il riparto di competenze tra centro e periferia è stato oggetto di una limitata analisi da parte della dottrina e della giurisprudenza, che si sono concentrate in particolare sulla disciplina del mercato del lavoro. L’Autore descrive un sistema multilivello, caratterizzato dalla compresenza di fonti nazionali e regionali, della contrattazione collettiva, nonché di codici di condotta. Sulla scorta di una ricostruzione del quadro normativo e dei percorsi della giurisprudenza, il saggio propone una lettur…

The essay examines the complex issue of the division of powers between the State and the Regions according to Title V of the Constitution concerning health and safety at workplace. This division between the center and the periphery has been subject to a limited review by doctrine and jurisprudence expecially focusing on the regulation of labour market. The Author describes a multilevel system characterized by the presence of national and regional sources collective bargaining and codes of conduct. On the basis of a reconstruction of the regulatory framework and the judicial statements the paper proposes a dynamic reading of the relationship between center and periphery in which the axis of the system remains however anchored to the national jurisdiction along with important regulatory issues left to the regional legislation.Settore IUS/07 - Diritto Del Lavoro
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La tutela del lavoro nell’impresa sequestrata o confiscata tra contratto e mercato

2020

Il saggio esamina il sistema delle regole che ineriscono la gestione della forza lavoro nell’impresa sequestrata o confiscata per metterne in luci pregi e criticità. La ricerca mette in particolare in luce i limiti della tesi che fa leva sulla prevalenza della disciplina contenuta nell’art. 56 del d.lgs. n. 159/2011 sulle regole generali. Il tema è indagato attraverso materiale giurisprudenziale in parte inedito e una valutazione critica del ruolo del sindacato.

The essay is an n investigation into the system of rules relating to the management of the workforce in the seized or confiscated company to highlight its merits and critical issues.The research highlights the limits of the thesis about prevalence of the discipline contained in art. 56 of Legislative Decree 159/2011 on general rules. The issue is investigated through a partly unpublished case law material and with a critical evaluation of the role of trade un- ions.Settore IUS/07 - Diritto Del Lavoro
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Pannello precompresso di vetromattoni assemblati a secco per la realizzazione di involucri traslucidi

2012

L’invenzione riguarda la realizzazione di un pannello di vetromattoni montati “a secco” -da impiegare per la realizzazione di involucri edilizi traslucidi anche nel caso di edifici alti- che è in grado di rispondere adeguatamente alle sollecitazioni orizzontali (quali quelle dovute a vento e sisma) grazie all’applicazione della tecnica della precompressione mondirezionale. Per offrire una risposta ai limiti imposti dalla tecnica di assemblaggio tradizionale dei vetromattoni (“ad umido”), l’applicazione della precompressione consente, infatti, di dare ai pannelli preassemblati “a secco” una rigidezza adeguata anche in direzione normale al loro piano di posa, sfruttando le buone caratteristic…

The invention is related to the construction of a glassblock panel “dry assembled” that can be used to build translucent building envelope even in high-rise buildings. This panel is able to contrast the horizontal actions due to wind and earthquake by means of the application of unidirectional pre-stressing technique. To overcame the limits due to the “wet assembly” system traditionally used to assemble the glassblocks the use of prestressing technique allow the panels to have an adequate mechanical resistance against the actions perpendicular to their installation plane. In this configuration the mechanical resistance of the glassblocks is exploited. The unidirectional prestressing (along the prevalent dimension of the panel) is obtained through the grip of the nuts inserted in the steel bars that are housed inside the glassblocks supporting profiles positioned in the vertical cavities between the glassblocks and passing through the horizontal profiles useful to separate glassblock rows from each other. The proper nuts grip opposing to the steel plates positioned at the top and bottom of the panel allow to prestress the panel. The steel plate are positioned on a plastic plate fixed to the lateral faces of the glassblocks by means of resins.Settore ICAR/10 - Architettura Tecnica
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