PrefaceChapter 1: Coatings and Surface EngineeringMethods of Structural Engineering of Surface in Solving the Problems of Multifactorial Increase of the Level of Operational Characteristics of MaterialsSelection and Application of the Optimal Surface Engineering Method to Restore the Properties of Rolling Equipment Elements that Have Been Reduced Due to Violations of Surface Grinding TechnologyMethods for Optimizing the Content of VOCs to Create Environmentally Friendly Materials for Protective CoatingsNumerical Modeling of Critical Velocity and Deformation Behavior in Cold Spray Using Lagrangian and Arbitrary Lagrangian TechniqueSynthesis, Characterization of Chromium Oxide Powders and CoatingsSurface Hardening of CP Ti by Laser Hardening and Development of Ti/TiC Surface Composite by Laser Sintering Technique for Wear Resistant SurfaceChapter 2: Thin FilmsStudies on Lead Sulphide (PbS) Thin Film Prepared by Chemical Bath Deposition MethodEffect of Annealing Temperature Variation on Al-Doped Nickel Oxide Thin-Film Synthesized by Dip-Coating TechniqueA Study on the Inclusion of Higher Dopant Proportion on ZrO2 Thin Film Deposited by Spray Pyrolysis MethodAn Embedded System Approach to Design and Development of an Automatic Spin Coating Machine for Thin Film ApplicationsEffect of Lanthanum Doping on Properties of ZnS Thin Films for Water SplittingOptical Characterization of Semiconducting Thin Films Using UV-VIS-NIR Spectroscopy: A ReviewChapter 3: Low Dimensional Quantum StructuresBinding Energy Stark-Shift, Polarizability and Dipole Moment Response of Shallow Donor Impurity in GaAs Quantum DotsDonor Atom Properties in 2D Ultra-Thin Cylindrical Quantum DotsElectronic Localized States Behaviour in a GaAs/GaAlAs Multi-Quantum Wells with a Geo-Material and a Material Defects