The Optics Between Theory and Application in Arabic Golden Age -- Fatigue and Notch Mechanics -- Experimental Disparity Analysis of the Behavior and Fatigue of the 304L Stainless Steel -- Numerical Investigation on the Anisotropic Behavior of an Aluminum Alloy Type 2017A.-History of Microstructure Evolution and its Effect on the Mechanical Behavior During Friction Welding for AISI 316 -- A Study of Selective Laser Melting Technology on the Ultra-High Strength Tool Steel Use – Quality, Mechanical Properties and Fatigue -- Transferability of Fracture Toughness With Constraint -- Crack Path Stabilisation and T-Stress Estimation in Connection With the Global Approach for Inclined Notches -- Measuring of Strain and Displacements in Welded Joints Subjected to Tensile Load Using Stereometric Methods -- Experimental and Numerical Investigations of Friction Stir Welding of Aluminum to Copper -- Heat-Affected Zone as Critical Location in Pressure Equipment.-Mixed Mode Static and Dynamic Modeling in Fracture Mechanics for Plane Composite Materials by X-FEM.-The Preheating Temperature Effects on the Residual Stresses of the Welded Rails Sections -- Dynamic Analysis of Fiber Reinforced Composite Beam Containing a Transverse Crack.-Determination of Elastic-Plastic Parameters of Inconel Arc Sprayed Coating.-Study of Noise Inside a Mechanical Shovel Cabin Using a Sound Perception Approach -- Perceptual Study of Simple and Combined Gear Defects -- Natural Frequencies of Composite Cylindrical Helical Springs -- Improvement of the Sensitivity of the Scalar Indicators Using a Denoising Method by Wavelet Transform -- Fault Diagnosis Through the Application of Cyclostationarity to Signals Measured -- Experimental Study of Real Gear Transmission Defects Using Sound Perception -- Taguchi Design of Experiments for Optimization and Modeling of Surface Roughness when Dry Turning X210Cr12 Steel -- Study Contribution of Surface Quality Parts Machined by Turning Using Hard Materials -- Prediction of Cutting Tool’s Optimal Lifespan Based on the Scalar Indicators and the Wavelet Multi-Resolution Analysis -- Diffusion Modelling of Composite With Permeable Fiber.-Elastic Buckling at the Scale of a Bone Trabecula: The Influence of the Boundary Conditions -- Dynamic Characterization of MR Damper and Experimental Adjustment of Numerical Model -- Evaluation of Nonlinear Seismic Response of Reinforced Concrete Structures.-A Finite Element Approach for Predicting the Flexural Response of Light Weight FRP-Concrete Beams Under Cyclic Loading -- Study of Composite With Metallic Matrix WC/W2C-20W-20Ni Realized by Spontaneous Infiltration of the Bronze Alloy Cu-30Mn-3P.-Investigations on the Residual Shear Properties of a Composite Subjected to Impact Fatigue Loading -- Development of a Reliability-Mechanical: Numerical Model of Mechanical Behavior of a Multilayer Composite Plate -- Analysis of Deflection in Isotropic and Orthotropic Rectangular Plates with Central Opening under Transverse Static Loading -- Diffusive Behavior in Polymer-Local Organomodified Clay Matrix.-Effect of Grain Size of Nano Composite in Optical and Magnetic Proprieties -- Finite Element Based on Layerwise Approach for Static and Dynamic Analysis of Multi-Layered Sandwich Plates -- Tool Life Evaluation of Cutting Materials in Turning of X20Cr13 Stainless Steel -- Importance of Physical Modeling for Simulations of Turbulent Reactive Flows -- Influence of Diverging Section Length on the Supersonic Jet Delivered From Micro-Nozzle: Application to Cold Spray Coating Process -- Turbulent Combustion Modeling in Compression Ignition Engines -- On the Thermal Characterization of a Fire Induced Smoke-Layer in Semi- Confined Compartments.