Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.
DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.
We develop an efficient adaptive receiver for joint equalization and interference cancellation for multi-user space-time block-coded transmissions. The receiver exploits the rich code structure and allows multiple user transmissions over frequency-selectiv ...
Pure perovskite Pb(Sc1/2Nb1/2)O-3 thin films without pyrochlore phase were prepared by the sol-gel method on TiO2/Pt/TiO2/SiO2/Si substrates. Films exhibited (111) preferred orientation and columnar microstructure. Diffuse phase transitions with permittivi ...
A configurable converter topology is presented as front-end converter for a locomotive that can be operated as well on a high voltage ac-system as on a medium voltage dc-system. The configurable converter is realized on the base of a multilevel chain, wher ...
This paper deals with the modeling of multi-winding transformers. Based on the real example of a railway DC - supply, a modeling methodology is presented as the original part of the paper. Afterwards two application examples of multi-winding phase shifting ...
Air-magnetic circuit breakers are widely used for short-circuit protection in DC electric railways or industrial plants. The well-known drawbacks of these breakers are mainly a slow breaking action, a short lifetime and high maintenance costs due to the de ...
In this article the development and realization of a 8 kW battery charger with Power Factor Correction (PFC) is described. The converter consists of two parts: The first part is an AC/DC converter based on a “VIENNA” topology with a controlled output volta ...
Return-stroke lightning models and coupling models permit a fairly good estimation of overvoltages induced by indirect lightning strokes. However, some discrepancies that still exist between measured data and calculations stress the necessity to incorporat ...
L'analyse du comportement des puits de stockage des déchets radioactifs dans des formations argileuses présente un grand intérêt pour les concepteurs dans l'évaluation de la sûreté de ces ouvrages. Le comportement d'un sol adjacent à un puits, contenant de ...
We develop an efficient adaptive receiver for joint equalization and interference cancellation for multi-user space-time block-coded transmissions. The receiver exploits the code structure and allows multiple user transmission over frequency-selective fadi ...
An ac loss experiment on two Nb3Sn cable-in-conduit conductors (CICCs) is carried out in the SULTAN test facility using both magnetization and calorimetric methods to cover a broad range of frequency, from 0.03 Hz to 6 Hz. Loss curves are measured before a ...
