Search results for "Putin"
showing 10 items of 25297 documents
Espace et pouvoir
2014
National audience
Le peuple au siècle des Lumières. Echec d'un dressage culturel
1990
National audience
Simulation of a Power Line Communication System in Medium and Low Voltage Distribution Networks
2011
The aim of the paper is to study the influence of the power transformer on signal transmission in the case of a power line communication (PLC) system in a overhead Medium Voltage (MV) power network. A model of the PLC system was carried out by means of the Simulink® software. A distributed parameter MV overhead line, two power transformers, the signal coupling networks and the receiving and transmitting line coupling interface of a ST7540 FSK powerline transceiver were included in the model. The performances of the complete PLC communication system are evaluated for different line lengths by means of the attenuation computed as ratio between the received and transmitted voltage signals.
Measurement and communication interfaces for distributed generation in smart grids
2013
The aim of this work is to perform a feasibility study on the measurement and communication strategies for the development of a new generation of interface devices for distributed generators and their integration on smart grids. The communication system can use one or more technologies, at the various levels, creating a low cost network infrastructure, in the framework of a SCADA (Supervisory Control and Data Acquisition) architecture. As regards the measurements, the attention is focused on the anti-islanding protection, based on a hybrid solution, which makes use of local measurements and communications with the grid, at both MV and LV level by employing the PLC technology. Some simulatio…
Power calculation of multi-band signals: design and implementation on FPGA
2017
International audience
Entretien avec Ernest Pignon-Ernest
2016
International audience
Homère dans le Traité du Sublime
2018
International audience
Towards student-centred pedagogy : action research with Ethiopian village school teachers
2018
This study is an action research that was planned and implemented with 23 Ethiopian Village School teachers. The action of the four year project concentrated on developing new, student-centred teaching methods instead of traditional lecturing and rote learning in one remote school. The overall aim of the study was to follow this process and the teachers’ professional development, and to explore how the practical arrangements, such as material or cultural surroundings, constrain or enable usage of student-centred methods at the school. The theoretical framework of the study consists of theories about professional development, action research, and the theory of practice architectures. The dat…
Tatiana, un environnement d’aide à l’analyse de traces d’interactions humaines
2010
International audience
Pouvoirs de l’historien. La pratique de l’histoire entre engagement et distanciation
2010
International audience