Adomian decomposition method Algerien Analytical solution Arbeitsmarkt Arbeitsmarktpolitik Beschäftigungspolitik Biofluid Boundary layer Convective surface EHL rolling contact FENE-P model Failure Gear Hydrodynamic Inclined walls Jeffery–Hamel flow Lubricant contamination Lubrication Magnetic field Misalignment defect Numerical solution PTT model Prognose Roughness Solid contamination Temperature Variance analysis Viscoelastic fluids Wear analytical solution