Search results for "Voir"
showing 10 items of 613 documents
Changes in the flow and quality of water in the dam reservoir of the Mała Panew catchment (South Poland) characterized by multidimensional data analys…
2023
Multidimensional exploratory techniques, such as the Principal Component Analysis (PCA), have been used to analyze long-term changes in the fl ow regime and quality of water of the lowland dam reservoir Turawa (south-west Poland) in the catchment of the Mała Panew river (a tributary of the Odra). The paper proves that during the period of 1998–2016 the Turawa reservoir was equalizing the river’s water fl ow. Moreover, various physicochemical water quality indicators were analyzed at three measurement points (at the tributary’s mouth into the reservoir, in the reservoir itself and at the outfl ow from the reservoir). The water quality assessment was performed by analyzing physicochemical ind…
Stochastic Nonlinear Time Series Forecasting Using Time-Delay Reservoir Computers: Performance and Universality
2014
International audience; Reservoir computing is a recently introduced machine learning paradigm that has already shown excellent performances in the processing of empirical data. We study a particular kind of reservoir computers called time-delay reservoirs that are constructed out of the sampling of the solution of a time-delay diFFerential equation and show their good performance in the forecasting of the conditional covariances associated to multivariate discrete-time nonlinear stochastic processes of VEC-GARCH type as well as in the prediction of factual daily market realized volatilities computed with intraday quotes, using as training input daily log-return series of moderate size. We …
Riesgos infecciosos alimentarios y embarazo: ¿cuál es la información de la que disponen los profesionales de la salud?
2020
This study focuses on the nature and origin of prevention information available to health professionals in the field of nutrition for pregnant women. It focuses more specifically on information sharing practices regarding two infectious risks: toxoplasmosis and listeriosis. The information available to professionals on these potential risks comes mainly from institutional texts and manuals. We will focus here on the recommendations found in institutional texts, which show striking characteristics which need to be taken into account in the training of professionals: such recommendations are evolving in nature, with shifts in clarity and degree of precision, and are diverse in terms of messag…
Le point de vue des sujets formateurs confrontés au processus de professionnalisation. Itinéraires de trois formateurs en EPS.
2015
International audience; Confrontés à la professionnalisation du métier d'enseignant dans un nouveau contexte de masterisation, nous avons tenté d'identifier auprès de trois formateurs très impliqués, en référence à leur itinéraire professionnel, ce qui restait stable et ce qui évoluait dans les pratiques de formation en EPS. Les résultats sont présentés à partir de cinq analyseurs que sont le rapport au savoir, le rapport à la formation, le rapport à l'autre, le rapport à l'institution et le rapport à l'expérience antérieure. Selon la place que les sujets occupent dans l'institution et selon leur expérience professionnelle, le rapport à la professionnalisation évolue de manière plus ou moin…
Combining a data-driven approach with seasonal forecast data to predict reservoir water volume in the Mediterranean area
2023
Prolonged droughts and water scarcity have become more frequent in recent years, exacerbating the problem of the artificial reservoirs management in the Mediterranean area. This study proposes a methodology which combines a Nonlinear AutoRegressive network with eXogenous input (NARX) data-driven model with Seasonal Forecasts (SFs) data, with the aim to predict the water volume stored in reservoirs at a mid-term scale, as requested by the local authority. The methodology is applied to four Sicilian reservoirs that experienced water scarcity in the recent past. SFs produced at the European Centre for Medium-Range Weather Forecasting are used to force the NARX models. Also, the reservoirs are …
Chthonic science: Georges Niangoran-Bouah and the anthropology of belonging in Côte d'Ivoire
2009
Georges Niangoran-Bouah worked assiduously toward Africanizing national education, academia, and public culture in Cote d'Ivoire. As part of this venture, his research projects, including his study of "drummology," can be regarded as a quest for "chthonic" science, that is, an anthropology that uncovers and implements the deep tenets of African-Ivorian culture. Properly situated in its academic, ideological, and political umwelt, we demonstrate, Niangoran-Bouah's anthropology of belonging is not merely an instance of "closure" but must be seen as a multiform attempt to recover a "local" position as a way to participate in universal-global science.
Underbalance well completion - a modern approach for mature gas fields
2017
The exploitation of natural gas fields from Transylvanian Basin started a century ago. The majority of these fields were discovered and developed in the last century, from 1950 to 1970. So, these reservoirs have over 50 years of production historical. These are mature fields with a very low reservoir pressure. Now, for some of these reservoirs the pressure is 10 – 20 % of initial values. The biggest challenge for a production company is to make completions and recompletions in depleted reservoirs wells. At the beginning was not a problem to do a workover in these wells because the completion fluids were lost in the reservoir and the pressure helped the wells to clean up. Now, because the re…
Non-linear neuro-inspired circuits and systems: Processing and learning issues
2018
In this chapter the main elements useful for the design and realization of the neural architectures reported in the following chapters will be presented. Considering spiking and non-spiking neurons, the models used for implementing each of them, the synaptic models, the basic learning and plasticity algorithms and the network architectures will be introduced and analysed. The key elements that led to their selection and application in the developed neuro-inspired systems will be discussed briefly.
Language and Mind : towards a linguistic and critical study of spectacular language.
2021
He thesis focuses on a sample of written messages drawn from the daily environment. In the general framework of the relationship between language and power, the thesis consists in the analysis of written messages broadcast in daily life. The research is based on the collection of messages found on various media, including advertising displays. The thesis begins with the reception and use of the notions of newspeak and wooden tongue in their historical and contemporary context in order to show the topicality of linguistic and sociological questions about the relationship between language and power. The study of these two notions, through the linguistic and epistemological issues they involve…
Advances in photonic reservoir computing
2017
We review a novel paradigm that has emerged in analogue neuromorphic optical computing. The goal is to implement a reservoir computer in optics, where information is encoded in the intensity and phase of the optical field. Reservoir computing is a bio-inspired approach especially suited for processing time-dependent information. The reservoir’s complex and high-dimensional transient response to the input signal is capable of universal computation. The reservoir does not need to be trained, which makes it very well suited for optics. As such, much of the promise of photonic reservoirs lies in their minimal hardware requirements, a tremendous advantage over other hardware-intensive neural net…