Liste des publications
A Comparative Study of Various Methodsof Bearing Faults Diagnosis Using the CaseWestern Reserve University Data.
Bearing is probably one of the most criticalcomponents of rotating machinery. They are employed toguide and support the shafts in rotating machinery.Therefore, any fault in the bearings can lead to losses onthe level of production and equipments as well as potentiallyunsafe. For... Voir les détails
Mots clés : Vibration analysis, bearing Fault diagnosis, Temporal analysis, Cepstrum analysis
Full-potential calculations of structural and optoelectronic properties of cubic indium gallium arsenide semiconductor alloys
In this work, the first-principle calculations have been performed to predict the structural,electronic and optical properties of cubic InxGa1−x... Voir les détails
Mots clés : Ab inition, DFT, Cubic, InxGa1-xAs alloys, structural parameters, Optoelectronic properties
Structural, electronic, optical and elastic properties of the complex K2PtCl6-structure hydrides ARuH6 (A = Mg, Ca, Sr and Ba): first-principles study
We report a systematic study of the structural, electronic, optical and elastic properties of the ternary ruthenium-based hydrides A2RuH6 (A = Mg, Ca, Sr and Ba) within two complementary first-principles approaches. We describe the properties of the A2RuH6 systems looking for trends on different... Voir les détails
Mots clés : Ruthenium-based hydrides; first-principles calculations; elastic constants; optical properties; electronic
Spatially Varying Weighting Function-BasedGlobal and Local Statistical Active Contours.Application to X-Ray Images
Image segmentation is a crucial task in the image processingfield. This paper presents a new region-based active contour whichhandles global information as well as local one, both based on the pixelsintensities. The trade-off between these information is achieved by aspatially varying function... Voir les détails
Mots clés : image segmentation, Active contour, Averaged Shifted, histogram, pressure forces, statistics, Spatially varying function
Adsorption of the copper in solution by the kaolin
The physico-chemical characterization showed that this adsorbent is mostly silica and alumina and. The specific surface area measured is more important for purified. The proposed disposal is in batch system. The results of investigations carried out show that the equilibrium is reached after 30... Voir les détails
Mots clés : Kaolin, copper, adsorption, water, depollution
An experimental analysis of fracture mechanisms by acousticemission of woven composite bolted assembly
This work is focused on the study of the evolution of damage mode and failure mechanisms of woven composite bolted assembly carbon fiber/epoxy. In the present paper three configurations are studied [0°,45°,0°,45°], [0°,45°,0°,45°]s and [0°,45°,0°,45,0°]s. In order to analyze a global... Voir les détails
Mots clés : Woven composite, acoustic emission, bolted assembly, digital image correlation, Damage.
Computer Code for Materials Diagnosis Using Monte CarloMethod and Neural Networks
Non-destructive testing (NDT) is a highlyvaluable technique in evaluation and evolution of materialsand products. X-ray imaging is an important NDT techniquethat is used widely in the metal industry in order tocontrol the quality of materials. Sometimes it may be difficultto get a... Voir les détails
Mots clés : Non-Destructive testing, X-ray imaging, Materials diagnosis, Monte Carlo, Neural Network
Diagnosis and Detection of Eccentricity Faults in a Doubly-Fed Induction Generator
Doubly-fed induction generators are being used extensively in wind energy conversion systems. Efforts are being made to effectively adopt existing condition monitoring and fault diagnostic techniques for these systems. We consider in this paper to take account of the specificities and... Voir les détails
Mots clés : diagnosis, Detection, faults, doubly-fed indduction generator, eccentricity, modeling, simulation
Metallic Coating for Carbon Fiber Reinforced Polymer Matrix Composite Substrate
This paper investigates the application of metallic coatings on high fiber volume fraction polymer matrix composites. For the grip of the metallic layer, a method of modifying the surface of the composite by introducing a mixture of copper and steel powder filler powders which can reduce the... Voir les détails
Mots clés : Arc spray, coating, composite, erosion
On-Line Monitoring and Classification of Stator windings Faults inInduction Machine Using Fuzzy Logic and ANFIS Approach
the induction machines drives becomes moreand more important used in many industrial applications.Their attractiveness is largely due to their simplicity,ruggedness and low cost manufacture, easy maint00enance,high power efficiency and high reliability, are susceptible tovarious... Voir les détails
Mots clés : Monitoring, classification, Fis, INFIS, RMS