Search results for "NUIT"
showing 10 items of 553 documents
Global–local model for three-dimensional guided wave scattering with application to rail flaw detection
2021
This study presents a three-dimensional global–local formulation for the prediction of guided wave scattering from discontinuities (e.g. defects). The approach chosen utilizes the Semi-Analytical Finite Element method for the “global” portion of the waveguide, and a full Finite Element discretization for the “local” portion of the waveguide containing the discontinuity. The application of interest is the study of guided wave scattering from transverse head defects in rails. Theoretical scattering results are impossible to obtain in this case for a wide-frequency range. While three-dimensional Semi-Analytical Finite Element–Finite Element models for guided wave scattering studies have been …
When does Regression discontinuity design work? Evidence from random election outcomes
2018
We use elections data in which a large number of ties in vote counts between candidates are resolved via a lottery to study the personal incumbency advantage. We benchmark non‐experimental regression discontinuity design (RDD) estimates against the estimate produced by this experiment that takes place exactly at the cutoff. The experimental estimate suggests that there is no personal incumbency advantage. In contrast, conventional local polynomial RDD estimates suggest a moderate and statistically significant effect. Bias‐corrected RDD estimates that apply robust inference are, however, in line with the experimental estimate. Therefore, state‐of‐the‐art implementation of RDD can meet the re…
La céramique de la Tène finale (fosse 1182 et niveaux précoces)
2020
INSERTION DE LA FOSSE 1182 DANS LE CONTEXTE DES NIVEAUX PRÉROMAINS DE LA ZONE CULTUELLE Dans la zone des sanctuaires, l’existence de niveaux préromains a été clairement mise en évidence par les fouilleurs (FAUDUET, POMMERET, 1985, p. 63 ; POMMERET, 1994). Malheureusement, les destructions consécutives à la construction du grand temple obscurcissent notablement la vision de ces niveaux. On ne dispose que d’informations ponctuelles et lacunaires sur les niveaux les plus précoces, difficiles de ...
The boundary Harnack inequality for infinity harmonic functions in Lipschitz domains satisfying the interior ball condition
2008
Abstract In this note, we give a short proof for the boundary Harnack inequality for infinity harmonic functions in a Lipschitz domain satisfying the interior ball condition. Our argument relies on the use of quasiminima and the notion of comparison with cones.
Factores clave para modelos de atención a la insuficiencia cardiaca. Una visión integradora y multidisciplinar
2021
[Resumen] Introducción y objetivos. La insuficiencia cardiaca (IC) supone un reto para los sistemas sanitarios que se puede responder a través del desarrollo de modelos integrales de atención. Un grupo multidisciplinar de expertos reflexionó sobre los factores clave para avanzar en el desarrollo de este tipo de modelos, planteando una hoja de ruta dirigida a todos los agentes (administraciones, gestores y profesionales sanitarios). Métodos. Se conformó un panel Delphi multidisciplinar integrado por un comité asesor de 15 expertos y un panel adicional de 31 expertos. A través de una revisión bibliográfica sistemática y entrevistas individuales semiestructuradas se realizó un diagnóstico e id…
Inverse symmetry breaking and the exact renormalization group
1996
We discuss the question of inverse symmetry breaking at non-zero temperature using the exact renormalization group. We study a two-scalar theory and concentrate on the nature of the phase transition during which the symmetry is broken. We also examine the persistence of symmetry breaking at temperatures higher than the critical one.
Pedagoģijas zinātnes ģenēze Latvijā no 20.gadsimta 20.gadiem līdz 60.gadu sākumam
2013
ANOTĀCIJA Ivetas Ozolas promocijas darba „Pedagoģijas zinātnes ģenēze Latvijā no 20. gadsimta 20. gadiem līdz 60. gadu sākumam” mērķis ir izpētīt, kā sociālpolitisku un zinātnes procesu kontekstā pedagoģija Latvijā laika posmā no 20. gadsimta 20. gadiem līdz 60. gadu sākumam veidojusies un attīstījusies kā patstāvīga zinātnes nozare. Darbā analizēti zinātnes veidošanās teorētiskie pamati, definējot dimensijas, kas raksturo atsevišķu zinātnes nozaru izveidošanos. Atbilstoši tām pētīta pedagoģijas zinātnes institucionālās, komunikatīvās un metodoloģiskās dimensijas attīstība Latvijā dažādu pedagoģijas paradigmu un sociālpolitisko apstākļu kontekstā. Pētījuma rezultāti apliecina, ka pedagoģija…
Generalized countable iterated function systems
2011
One of the most common and most general way to generate fractals is by using iterated function systems which consists of a finite or infinitely many maps. Generalized countable iterated function systems (GCIFS) are a generalization of countable iterated function systems by considering contractions from X ? X into X instead of contractions on the metric space X to itself, where (X, d) is a compact metric space. If all contractions of a GCIFS are Lipschitz with respect to a parameter and the supremum of the Lipschitz constants is finite, then the associated attractor depends continuously on the respective parameter.
The Landslide of Agrigento Hill (Sicily, Italy)
2018
This paper illustrated the geological, morphological and hydrogeological studies performed for the analysis and monitoring of the landslide involving the northern side of the hill of Agrigento (335 m a.s.l.) on which the ancient Cathedral was built during the 11th Century. The hill is made of a typical Plio-Pleistocene transgressive succession made of clays (M. Narbone formation), calcarenites, sands and clayey soils (Agrigento formation). The area has been unstable since 1315, involving both the little-welded, very porous and fractured calcarenitic sections (E-W) from Pleistocene and the clay layers interstratified within these sections. Since 1924, from time to time, various typologies of…
Application of Magnetic Susceptibility Measurements for Identification of Technogenic Horizons in Soil Profiles on the Example of the Vistula River C…
2017
Studies on magnetic properties of soils have been recently applied in the soil environment quality monitoring in relation to basic physical and chemical properties. However, the issue of distribution of ferrimagnetic materials in particular genetic soil horizons, especially in altered soils, has not yet been considered in environmental studies. The main subject of the research was to evaluate a potential of magnetic susceptibility measurements as implements for supporting the soil classification through indication of particular distinctive genetic horizons in the soil profile. The study objects were soils whose formation was strictly conditioned by hydrotechnical regulations in the area of …