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Book
Atomic Processes in Plasmas and Gases
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ISBN: 3036554440 3036554432 Year: 2022 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Atomic processes in plasmas and gases encompass broad areas in theoretical, experimental, atomic and molecular physics. One example is atomic processes that are involved in the study of various plasmas over a wide range of electron densities and temperatures. The topics in this area covered in the present book include magnetic fusion plasmas, laser-produced plasmas, as well as plasma spectroscopy for all of the above applications. Another example is atomic and molecular processes in neutral gases. Rydberg polar molecules in particular are covered in this book.


Book
Advances in Fundamental Physics
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ISBN: 3036557466 3036557458 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This Special Issue celebrates the opening of a new section of the journal Foundation: Physical Sciences. Theoretical and experimental studies related to various areas of fundamental physics are presented in this Special Issue. The published papers are related to the following topics: dark matter, electron impact excitation, second flavor of hydrogen atoms, quantum antenna, molecular hydrogen, molecular hydrogen ion, wave pulses, Brans-Dicke theory, hydrogen Rydberg atom, high-frequency laser field, relativistic mean field formalism, nonlocal continuum field theories, parallel universe, charge exchange, van der Waals broadening, greenhouse effect, strange and unipolar electromagnetic pulses, quasicrystals, Wilhelm-Weber’s electromagnetic force law, axions, photoluminescence, neutron stars, gravitational waves, diatomic molecular spectroscopy, information geometric measures of complexity. Among 21 papers published in this Special Issue, there are 5 reviews and 16 original research papers.

Keywords

Research & information: general --- Physics --- information geometry --- complexity --- classical and quantum physics --- self-simulation hypothesis --- principle of efficient language --- quasicrystals --- empires --- game of life --- emergence --- state sum models --- space–time couplings --- spatiotemporal --- ultrafast optics --- unipolar pulses --- few cycle pulses --- line-by-line --- greenhouse effect --- radiative fluxes --- thermal emission --- spectroscopy --- stark broadening --- atomic physics --- foundations of quantum mechanics --- molecular spectroscopy --- diatomic molecules --- symmetry transformations --- optical emission spectroscopy --- astrophysics --- neutron stars --- nuclear equation of state --- gravitational waves --- speed of sound --- tidal polarizability --- charge exchange --- second flavor of hydrogen atoms --- dark matter --- stark effect --- parallel universes --- multiverse --- preferred direction in the universe --- bulk flow --- four spatial dimensions --- nonlocal metamaterials --- multiscale structures --- fiber bundles --- superspace --- mathematical methods --- mathematical physics --- nonlocal continuum field theory --- semiconductor materials --- preformed cluster decay --- relativistic mean-field --- alpha-particle clustering --- neck-length --- hydrogenic atoms --- high-frequency laser field --- relativistic precession --- laser-controlled precession --- cosmological constant --- generalised Brans-Dicke theory --- Big Rip --- photoluminescence --- dispersive media --- axion --- space-time couplings --- bipolar pulses --- few-cycle pulses --- free-space wave equation --- space-time wave packets --- nondiffracting localized waves --- molecular hydrogen ion --- proton collisions --- molecular spectral bands --- quantum antennas --- quantum field theory --- relativistic quantum mechanics --- quantum radiation --- propagator --- Green’s function --- quantum engineering --- quantum technologies --- radiation pattern --- electron impact excitation of hydrogen atoms --- discrepancy between theories and experiments --- electron impact excitation of hydrogen molecules --- quantum mechanics --- particle–wave duality --- quantum jump --- quantum entanglement --- Weber’s electrodynamics --- Weber force --- field theory --- electromagnetism --- electrodynamics --- physics of elementary particles and fields --- magnetic field --- electric field --- electrical engineering --- fundamental physics


Book
Technologies of Coatings and Surface Hardening for Tool Industry
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

The innovative coating and surface hardening technologies developed in recent years allow us to obtain practically any physical–mechanical or crystal–chemical complex properties of the metalworking tool surface layer. Today, the scientific approach to improving the operational characteristics of the tool surface layers produced from traditional tools industrial materials is a highly costly and long-lasting process. Different technological techniques, such as coatings (physical and chemical methods), surface hardening and alloying (chemical-thermal treatment, implantation), a combination of the listed methods, and other solutions are used for this. This edition aims to provide a review of the current state of the research and developments in the field of coatings and surface hardening technologies for cutting and die tools that can ensure a substantial increase of the work resource and reliability of the tool, an increase in productivity of machining, accuracy, and quality of the machined products, reduction in the material capacity of the production, and other important manufacturing factors. In doing so, the main emphasis should be on the results of the engineering works that have had a prosperous approbation in a laboratory or real manufacturing conditions.

Keywords

hierarchical structure --- multilayer PVD coating --- stochastic process --- convection and diffusion --- reactive magnetron sputtering --- argon --- nitrogen and ethylene --- TaSi2 --- Ta3B4 and ZrB2 --- SHS and hot pressing --- composition and structure --- hardness and elastic modulus --- friction coefficient and wear resistance --- oxidation resistance --- diamond-like coatings --- nitride sublayer --- index of plasticity --- adhesive bond strength --- end mills --- hard alloy --- wear resistance --- milling of aluminum alloys --- milling of structural steels --- surface quality --- modeling --- carbon flux --- low-pressure vacuum carburizing --- medium-high alloy steel --- nanolayered PVD coating --- microdroplets --- crack formation --- tool wear --- nanolayered coating --- microparticles --- monocrystalline --- high-pressure, high-temperature (HPHT) diamond --- chemical vapor deposition (CVD) diamond --- high-fluence ion irradiation --- Ar+ --- C+ --- SEM --- AFM --- Raman spectra --- electrical conductivity --- AlCr-based --- CrAl-based --- (AlCrX)N --- (Al1−xCrx)2O3 --- arc --- HiPIMS --- nanolayers --- nanocomposite --- structure --- properties --- roughness --- coatings --- finish turning --- PCBN --- tempered steel --- micro cutters --- cutting edges --- wear-resistance --- coating deposition --- adhesion --- plasma --- ions --- charge exchange collisions --- fast gas atoms --- etching --- sharpening --- diamond-like carbon coating --- high-speed milling --- nickel alloy --- SiAlON --- spark plasma sintering --- adaptive coating --- adaptive material --- composite powder HSS --- cutting tool --- secondary structures --- surface layer --- thermal-force loads

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