Results
author = "Laurent, Philippe"
FOSS issues in technology transfers from the University to the Industry
Author(s) :
Laurent, Philippe
Description :
FOSS has always been particularly welcome in Universities. Its spirit corresponds generally with the academic state of mind, and royalty-free technologies are particularly appreciated where money is usually lacking.
But at the opposite side of the spectrum, the universities¿ TTO¿s (Technology Transf...
Repository :
Repositori institucional de la UOC, O2
Language(s) :
Old English
VERS UNE SIGNATURE DES SYSTEMES BINAIRES COMPORTANT UN TROU NOIR ...
Author(s) :
Laurent, Philippe
Description :
Mes recherches ont eu pour but principal de trouver des signatures astrophysiques des trous noirs dans les systemes binaires d'étoiles. Comme je le montre dans ce mémoire, les astronomies X et γ semblent bien adaptées pour ces recherches. J'ai donc participé à la définition d'instruments X et γ, tou...
Repository :
HAL - Hyper Article on Line
Language(s) :
French
Evaluation de l’impact d’un projet de canal sur les naïades de l’Oise (France) et découverte de valves récentes de Margaritifera auricularia (Spengler, 1793) (Bivalvia : Margaritiferidae)
Description :
Within the framework of the installation project of the Oise River for the “Seine-Nord” channel, a research of the species of patrimonial bivalves was financed by Voies Navigables de France and driven by Biotope consultancy. The means put together allowed a complete inventory of the macrobivalves of...
Repository :
DOAJ-Articles
Language(s) :
Undetermined
Timing and Spectral Properties of X-ray Emission from the Converging Flows onto Black hole: Monte-Carlo Simulations
Description :
We demonstrate that a X-ray spectrum of a converging inflow (CI) onto a black
hole is the sum of a thermal (disk) component and the convolution of some
fraction of this component with the Comptonization spread (Green's) function.
The latter component is seen as an extended power law at energies mu...
Repository :
arXiv
Language(s) :
Undetermined
Effects of Downscattering on the Continuum and Line Spectra in Powerful Wind Environment. Monte Carlo Simulations, Analytical Results and Data Analysis
Description :
In Paper by Titarchuk & Shrader the general formulation and results for
photon reprocessing (downscattering) that included recoil and Comptonization
effects due to divergence of the flow were presented. Here we show the Monte
Carlo (MC) simulated continuum and line spectra. We also provide an anal...
Repository :
arXiv
Language(s) :
Undetermined
Spectral Index as a Function of Mass Accretion Rate in Black Hole Sources. Monte-Carlo Simulations and an Analytical Description
Description :
In this Paper, we present theoretical arguments that the observationally
established index saturation effect vs mass accretion rate is a signature of
the bulk (converging) flow onto the black hole. We demonstrate that the index
saturation value depends on the plasma temperature of converging flow....
Repository :
arXiv
Language(s) :
Undetermined
Sensorless Rotor Position Analysis using Resonant Method for Switched Reluctance Motor
Description :
Discrete position sensors are undesirable in our automotive applications. We are looking for a sensitive,simple, robust and low cost sensing method for the positioning of a rotor in a doubly salient motor. This paper describes an experimental modeling of the stator phase with regards to the frequenc...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
A New Indirect Rotor Position Sensing with Resonant Method for Switched Reluctance Motor
Description :
The paper describes an original method based on the principle of inductance measurement in the unenergized phase. A serie resonant circuit is used with the phase inductance carying with the position. The capacitor value is dertimend for resonance with opposition inductance.
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Comparison of Electromagnetic Perturbations and Commutation Losses between Self-Switching and PWM Mode of Current Control in a Switched Reluctance Motor.
Description :
In a previous paper we have shown the interest of the bilifilar winding in SRM feed by low voltage (automotive application). The interest is the minimization of switche number and of silicon area. In this paper, we propose to continue the study of a new control method with this feeding process struc...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Une population majeure de la très rare Grande Mulette Margaritifera auricularia (Spengler 1793) (Bivalvia : Margaritiferidae) dans le fleuve Charente (France)
Description :
During an environmental impact study concerning a scraping project on the Charente river, we discovered a major population of Giant Pearl Mussel Margaritifera auricularia (Spengler, 1793). We evaluate the population size to be over 20 000 individuals in the studied area from scuba diving counting, i...
Repository :
DOAJ-Articles
Language(s) :
Undetermined