Search results for " Carl"

Using of a uncertainty model of an polyarticulated coordinates measuring arm to validate the measurement in a manufacturing processsus

2014

International audience; Coordinates Measuring Arms (CMA) are increasingly used to control industrial parts and are often an alternative to CMM controls that require conditions of laboratory measurement and involve significant costs. However, the control of uncertainties is often not guaranteed because the measurement process is complex and there is no standard for setting a framework qualification process of the measurement process.The proposed study, in this paper, is a first approach to model the measurement uncertainties of a CMA with contact sensor. The problem is complex because there are many sources of uncertainty, largely due to variability in the handling carried out by the operato…

The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory

2011

In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an Extensive Air Shower (EAS) to trigger an individual detector of a ground based array as a function of distance to the shower axis, taking into account energy, mass and direction of the primary cosmic ray. We apply this concept to the surface array of the Pierre Auger Observatory consisting of a 1.5 km spaced grid of about 1600 water Cherenkov stations. Using Monte Carlo simulations of ultra-high energy showers the LTP functions are derived for energies in the range between 1017 and 1019 eV and zenith angles up to 65. A parametrization combining a step function with an exponenti…

Radial electron fluence around ion tracks as a new physical parameter for the detection threshold of PADC using Geant4-DNA toolkit

2018

International audience; The detection threshold of poly(allyl dyglycol carbonate), PADC, for C ions is determined as 55 eV/nm in stopping power, which is significantly higher than that for proton and He ions. The stopping power is not a universal parameter for expressing the detection threshold of PADC. A new physical parameter of Radial Electron Fluence around Ion Tracks, REFIT, is proposed to describe the detection threshold of PADC. It is defined as the number density of electrons passing through the surface of a cylinder of a certain radius that is co-axial with the trajectory. Furthermore, preliminary calculations are presently being performed using the Monte Carlo simulation code of G…

Calcul des contributions des incertitudes dans un modèle complexe de qualité de l'eau

2010

The quantification of uncertainty in integrated urban drainage water quality models is of paramount interest. Indeed, the assessment of the reliability of the model results for complex water quality models is useful for understanding the significance of the results. However, the state of knowledge regarding uncertainties in urban drainage models is poor. In the case of integrated urban drainage water quality models, due to the fact that integrated approaches are basically a cascade of sub-models (simulating sewer system, wastewater treatment plant and receiving water body), the uncertainty produced in one sub-model propagates to the following ones depending on the model structure, the estim…

Zenith distribution and flux of atmospheric muons measured with the 5-line ANTARES detector

2010

The ANTARES high energy neutrino telescope is a three-dimensional array of about 900 photomultipliers distributed over 12 mooring lines installed in the Mediterranean Sea. Between February and November 2007 it acquired data in a 5-line configuration. The zenith angular distribution of the atmospheric muon flux and the associated depth-intensity relation are measured and compared with previous measurements and Monte Carlo expectations. An evaluation of the systematic effects due to uncertainties on environmental and detector parameters is presented.

Extension de la cartographie des préférences aux plans incomplets

1995

National audience

Carlo Goldoni

2021

International audience; « On ne peut nier que je sois né sous l'influence d'une étoile comique, puisque ma vie même a été une comédie ». Picaresque, cette vie de Carlo Goldoni nous fait entrer de plain-pied dans la folle et fascinante société vénitienne du XVIIIe siècle, puis à la cour de Louis XVet de Louis XVI. Rien d'étonnant pour ce Molière italien, ancêtre de la comédie néo-réaliste des Dino Risi, Vittorio de Sica et autres Pietro Germi...

Methodology for estimating the uncertainties of a measurement process using an articulated arm coordinate measuring machine

2014

Pas de résumé en anglais.

Propagation des distributions - Détermination des incertitudes par la méthode de Monte Carlo

2013

Le supplément 1 [JCGM 101:2008] du guide pour l'expression des incertitudes de mesure de 2008 complète le GUM (Guide to the expression of uncertainty in measurement) [JCGM 100:2008] en proposant une nouvelle approche pour l'estimation des incertitudes de mesure. Il concerne la propagation des distributions des variables (paramètres) d'entrée à travers un modèle mathématique du processus de mesure. C'est une alternative pratique du GUM lorsque celui-ci n'est pas facilement applicable, par exemple, si la propagation sur la base du développement de Taylor au premier ordre n'est pas satisfaisante (linéarisation du modèle inadéquate) ou si la fonction de densité de probabilité pour la grandeur d…

Architetti e Ingegneri del Banco di Sicilia tra Ottocento e Novecento

I cambiamenti che interessano il mondo dell’architettura nel passaggio tra l'800 e il '900 coinvolgono anche il Banco di Sicilia che parteciperà attivamente alla ricerca di nuovi linguaggi e alla configurazione di nuove realtà urbane, a partire dalla prima metà del Novecento fino al programma di ricostruzione del secondo dopoguerra. L’attività legata all’edilizia e alla realizzazione delle proprie architetture spinge l’Istituto a formare un vero e proprio albo di tecnici di fiducia in cui si ritrovano importanti nomi di architetti e ingegneri che soprattutto nei primi trent’anni del ‘900 vengono chiamati a ricoprire ruoli più o meno prestigiosi. Gli estremi cronologici del periodo esaminato…