Table of contents 7th African Conference on Non Destructive Testing Behavior and Damage of Welded Structures Withdefects : Application to Pipeline Radiographic Weld Images Denoising Using Wavelet-Based Technique Study Of The Effect Of -Ray Irradiation On The Optical Properties Of Polyethylene Terephthalate Polymer ............................................................................................................. Flare Test, an Application on the Welded Steel Tubes, Study with Simulation Teaching Learning Based Optimization Neural Networks for Waveguide Filte Modeling The Variation of The Gap With Hydrostatic Pressure of The Fluoropervskite Rbznf3 Compound 11 Magneto-Electriqueand Magnetic Studies Of The Sr-Doped Samarium Manganite Synthsesed By Citrate Gelmethod. .......................................................................................................... 11 Crystallization Kinetics Phenomena Assessment In a Glass-Ceramic Material, By Non- Destructive Spectroscopic Methods ...................................................................................... 12 Comparative Numerical Simulation of Blood Flow in the Cases of Left Sub-Clavian Artery Sténosis and Aortic Coarctation ........................................................................................... 12 Non-Destructive Evaluation of Burnt Bridge at CH. 57+450 along Abuja-Abaji-Lokoja Road, Nigeria. ................................................................................................................................ 13 Numerical Damage Localization in Beam like Structures by using Modal Strain Energy Ratio Based Method ....................................................................................................................... 13 Theoretical and Numerical Study of the Reflection of an Ultrasonic Pulse Radiated by a Linear Phased Array Transducer at a Fluid-Fluid Interface ................................................... 14 Studies of Temperature-Dependent Behavior And Crystallization of Metallic Glass Alloys Determined by A New Device «NDT» for Simultaneous Measurements of Electronic Transport ............................................................................................................................. 14 Electrical characterization of the contact between the composite grains by dielectric spectroscopy ........................................................................................................................ 15 Eddy-Current Non-Destructive Testing System Using a Magnetic Sensor Based on GMR ...... 15 Electromagnetic and Hyperfrequency Conductivity of Polymer and Iron based Nanocomposites ................................................................................................................... 16 Spin Crossover Materials Based on Functionalized Macrocycle Ligands ................................ 16 A Comparative Experimental Study of Ultrasound Technique and Vibration Analysis in Detection of Bearing Defect ................................................................................................. 17 A First-Principles Study of The Physical Properties of Cdx (S, Se,Te) Compounds Materials for using in Radiation And Optical Applications. .................................................................. 17 Swarm Optimization Algorithm Inspired in the Behavior of the Social-Spider for Microwave Filters Optimization .............................................................................................................. 17 Dielectric Characterization of Thermally Aged XLPE Used As High Voltage Cable Insulation 18 Ultrasonic Attenuation in Trabecular Bone: Theoretical Approach and Experimental Measurement ....................................................................................................................... 18 Edge Detection in an Infrared Image in Steel and Metallurgical Domain .............................. 19 Characterization of micro cracks growth generated by Ion Co-Implantation ....................... 19 Testing the Setting and Hardening of Concrete using the Prism Technique .......................... 20 Theoretical Investigation of Damage Detection in Composite Structures using Harmonic Response Technique............................................................................................................. 20 The Technique Enabling Measurement of the Dispersion Influence of the Phase Velocity of Lamb Wave Signals Propagating in the Higer Dispersion Zone ............................................. 21 Rectangular Dielectric Resonator Antenna with Stacked BaxSr1-xTiO3 Ceramic Film ............. 21 Structural, Mechanical, Electronic, Elastic and Chemical Bonding Properties of the Complex K2PtCl6-Structure Hydrides Sr2RuH6: First-Principles Study .................................................. 22 Non Destructive Testing of Different Structure of Composite with Infrared Thermography and Ultrasonics .................................................................................................................... 22 Test of Multilayer Concrete Structures by Ultrasound .......................................................... 23 Status of Neutron Tomography at the Nuclear Research Centre of Birine: ........................... 23 Principles and Facility Characteristics .................................................................................. 23 Numerical Simulations of The Propagation of Chirped Vector Soliton In Optical Fibers With Variable Coefficients in the Presence of Third Order Dispersion and Power Law Nonlinearity 24 Advanced Computational Approach For Non Destructive Micro-Structural Material Diagnosis 24 Is the Occurrence of an Attractor in a Multi-Scale Ndt Computer Based Data Analysis a Good Indicator of Chaos Theory Data Modeling? ........................................................................... 25 Time of Flight (TOF) Estimation of Overlapping Ultrasonic Signals Using Wavelet Transforms 25 Study of Residual Stresses of Identation in the Glass ......................................................... 26 UV Radiations Impact on the Mechanical and Physicochemical Properties of Polycarbonate 27 Rolling Bearing Fault Diagnosis using SVM, Frequency Kurtosis and Entropy Techniques .... 27 Study of Propagation Comportment of Partial Discharge Pulses In Transmission Electric Power Cable 18/30 Kv Subjected to The Electric Aging DC Voltage 60 kV ............................ 27 Vibrations of Sandwich Beams FGM...................................................................................... 28 Estimating Overlapped Backscattered Echoes From Thermal Sprayed Coating using the Maximum Likelihood Approach ............................................................................................. 29 A Comparison of Tow Powerful Optimization Method, Genetic Algorithm and Practical Swarm Optimization for the Design of Waveguide Filters ................................................................ 29 Relation Entre la Résistance à La Compression et Upv du Béton avec Des Fibres Exposées à des Températures Elevées .................................................................................................... 29 Prediction of Compressive Strength of Concrete With Steel Fibers Exposed to High Temperatures by Artificial Neural Networks ......................................................................... 30 Weld Defects Recognition and Classification using Ultrasonic Signals .................................. 30 Study of the Structural, Electronic and Magnetic Proprieties Of PrCOO3 .............................. 31 Ultrasonic Internal Inspection System with a Rotating Transducer ..................................... 31 Measurement of thickness of thin metal sheets by the A0 Lamb mode at low products frequency thickness ............................................................................................................. 32 Application of Neuron Network for Direct Torque Control of DSIM Fueled by Multilevel Inverters. ............................................................................................................................. 32 Bayesian Inference for Image Reconstruction in X-Ray Tomography ................................... 32 Multistep Relaxations in a Spin-Crossover Lattice with Defect: a Spatiotemporal Study of the Domain Propagation. ............................................................................................................ 33 Defects Dispersion Studies in Composite Structures Has Polymer Matrix ............................. 34 Harmonized System for The Training, Qualification And Certification of Personnel, Implemented Within the French Confederation for NDT (COFREND) .................................... 34 Non-Destructive Testing (Ndt) Laboratory For Industrial Applications In Angola ................ 35 Design and Optimization of Micro-Strip Patch Antenna for Non Destructive Tasting (NDT) Applications ......................................................................................................................... 35 Human Liver Tissue Characterization Using Backscattere Ultrasound Signals ...................... 36 Reconstitution of Complex Defects With The Method of Neural Networ: Application For the Nondestructive Evaluation ................................................................................................... 36 Temperature Effects on Thin film Based SPR-Sensor ............................................................ 36 Non-Destructive Testing