Caractérisation indirecte de défauts géométriques de forme liés au process de fabrication d'un élément d'essuie-glace

Les défauts de forme sont inévitables dans la production série de pièces mécaniques. On doit les caractériser pour quantifier leur impact sur la performance du système complet. Pour estimer les défauts locaux d'un balai d'essuie-glace, on utilise une méthode indirecte (établissement expérimental d'une courbe « caractéristique »). On montre comment identifier le défaut à partir de la courbe par un problème inverse. Le modèle de calcul utilisé étant coûteux (EF non linéaire en grands déplacements, contact), on a recours à un méta-modèle par krigeage pour résoudre le problème d'optimisation

Human papillomavirus infection in honduran women with normal cytology

Contains fulltext : 80440.pdf (publisher's version ) (Closed access)OBJECTIVE: This study was aimed at estimating type-specific HPV prevalence and its cofactors among Honduran women with normal cytology in order to provide valuable information to health policymakers about the epidemiology of this important sexually transmitted infection. METHODS: A total of 591 women with normal cytology from Tegucigalpa, Honduras were interviewed and tested for HPV using the SPF10 LiPA25. A structured epidemiological questionnaire was administered to each woman. RESULTS: The overall HPV prevalence was 51%. Twenty-three types of HPV were detected; HPV 16, 51, 31, 18, and 11 were the most common. The highest prevalence of cancer associated HPV types (15.0%) was found in the women less than 35 years. Besides the association with age, the main independent predictors of HPV infection were the lifetime number of sexual partners and having a low socioeconomic status and less than 5 previous Pap smears. CONCLUSIONS: In the population studied, there was a broad diversity of HPV infections, with high-risk types being the most common types detected. The establishment of a well-characterized population with regard to the community prevalence of type-specific HPV infection will provide a valuable baseline for monitoring population effectiveness of an HPV vaccine

Catalog of Ptolemy's Geography, Main Books

Ptolemy's geographical catalog, covering the localities of the world         (Geography 2.2.1 to 7.4.13), of the two main textual recensions of the work (Xi and Omega),         based on the German translation published by (@StueckelbergerGrasshoff2006). The database         contains localities and names of peoples, provinces, lands, seas or mountains, whether         they have coordinates or not. The coordinates of the Xi recension follow the readings of the         Vaticanus gr. 191, as they are edited in the main text together with the critical apparatus         by the editors.</p

Catalog of Ptolemy's Geography Book 8

Localities contained in Book 8 of Ptolemy's Geography, based on the         German translation published by (@StueckelbergerGrasshoff2006) of the two main         textual recensions of the work (Xi and Omega). For a selection of         important cities Book 8 of the Geography gives lists         the durations of the longest day of the year as well as the distance of         their meridian to the reference meridian through         Alexandria (Egypt) in hours and fractions of hours. </pre

Using spatial reliability in the probabilistic study of concrete structures: The example of a reinforced concrete beam subjected to carbonatation inducing corrosion

Several methods, simple or more sophisticated, are tested to determine useful information for reliability problems involving spatial variability. The methods are developed around a simple example of a reinforced concrete beam subjected to carbonation inducing corrosion. A point-in-space reliability analysis is conducted to estimate a first indicator on the length to be replaced. Then, random field are introduced and are taken into account in the reliability problem using simulations methods to determine the empirical cumulative density function (CDF) of the length to be repaired and its moments. Finally, analytical formulations are used to estimate the same moments but with small computational effort

Maps of the Iberian Peninsula — Comparison Xi, Omega Recension [Jupyter notebook]

Ptolemy's catalogue of localities contains a list of places with their coordinates that enables to draw maps of the Iberian Peninsula. Ptolemy's text came down to us in two versions that are sometimes different regarding the spelling of the toponyms and the values of the coordinates. These versions are usually called "Omega recension" and "Xi recension". Based on the Greek text of Ptolemy's catalogue edited by A. Stückelberger and G. Graßhoff (2006), we will draw Ptolemy's map of the Iberian Peninsula and compare the two transmitted versions of his work.This jupyter notebook maps the locations of both recensions