The misconception in graphene’s dispersion energy simulations

This study aims to find equations and simulations that satisfy the characteristics of graphene’s energy dispersion and identify misconceptions that may occur. Here we give students nine articles about graphene’s dispersion energy. They were asked to identify the equations, parameters, and software used in each of the articles. The assignment was then to make the distribution of the data in a spreadsheet. The parameters used were the lattice constant of 2.46 Å, the range of the k wave function for the x and y axes of -2πa to 2πa, and the interval for each range of 0.1. Each equation is divided into two parts, E(+) and E(-). The analysis was carried out by making a slice in the middle of the x and y axes, as well as the main and off-diagonals. Graphene has Dirac points where the band gap is zero. This means that there is no distance or very small distance between the valence and conduction bands. From this activity, it can be concluded that Rozhkov (2016) has the equations and simulations that best satisfy graphene’s dispersion energy. Misconceptions occur in almost all existing equations and simulations.

Deposition of Molybdenum Oxide Thin Films for Flexible Biodegradable Electronics

With its unprecedented properties over conventional rigid platforms, flexible electronics have been a significant research topic in the last decade, offering a broad range of applications from bendable display, flexible solarenergy systems, to soft implantable-devices for health monitoring. Flexible electronics is a disruptive science that requires a high level of multi-disciplinary research, including chemistry, physics, material science, electronic and electrical engineering, mechanical engineering, computing science, biomedical engineering. The deep cross-integrate of it with other key subjects such as artificial intelligence, material science, Internet of things, space science, health science, energy science and data science, breaks through the intrinsic limitations of convention silicon electronics and affords unprecedented opportunities for relative industries involving integrated circuit, new and renewable. One way to reduce the cost of photoconverters is to use transition metal oxide, which is characterized by better solar energy conversion efficiency. is one of the promising candidates due to its nontoxicity, deep electronic state and relative lower vaporization temperature, which can easily deposited in vacuum. In contrast, the other transition metal oxides need relative higher evaporation temperature to deposit the film. The conventional and common fabrication methods for are thermal evaporation or sputtering under vacuum. This work presents molybdenum oxide films grown on nanocellulose. Molybdenum oxide thin films were grown by reactive ion beam sputtering on UVN-75R equipment. Measurements of thin film transparency spectra and the effect of bending on the transparency value were measured using a 4802 UV/VIS Double Beam Spectrophotometer. The energy-dispersion X-ray spectrum showed no impurities. The chemical composition of molybdenum oxide thin films was studied on the basis of energy-dispersion analysis, in which the characteristic X-ray radiation of the sample surface under the action of accelerated electron irradiation was recorded. For this purpose, a scanning electron microscope REM-106U in the mode of elemental microanalysis was used. The films show high transparency in the visible spectrum, as well as a low influence of bending on the transparency in the ultraviolet spectrum. Bending of the manufactured samples reduces the amount of transparency. Increasing the deposition temperature of the films has the same effect as bending. Combining the excellent electrical properties of and the high flexibility and transparency of nanocellulose, an excellent replacement for silicon heterostructures has been demonstrated.

CHARACTERISTICS OF FRAGMENTS OF SHELLS AFTER HITTING THE TRIPLEX GLASS OF THE CAR WITH SHOTS FROM A HUNTING "SAIGA" CARBINE UNDER THE CARTRIDGE 5, 45X39

The article is devoted to the possibilities of innovative research methods in forensic medicine-scanning electron microscopy with energy-dispersion analysis. The described methods were used in conducting experimental studies in the case of a gunshot retrograde injury. Aim. The purpose of the work was to study the particles formed during the destruction of a semi-shell shell and an obstacle (triplex car glass) when fired from a hunting Saiga carbine with 5. 45x39 cartridges. Material and methods. Car triplex windshields from BMW and Mercedes-Benz cars were used as a barrier. The shots were fired from a hunting Saiga carbine with a 5.45x39 cartridge. The shots were fired from a distance of 10 m. As targets, white calico with dimensions of 100x150 cm was used, stretched on a wooden frame, or fixed on a chipboard. The distance between the target and the barrier was 100 cm, which roughly corresponded to the distance from the windshield of the car to the driver and the passenger in the front seat. The studies were carried out using the SEM "Hitachi FlexSem1000 II" and the energy-dispersive X-ray spectrometer "Bruker Quantax 80". Results. As a result of the conducted research with the help of microscopy, the presence of 7 types of foreign bodies on the surface of the target was established, which are the products of the destruction of the fire projectile and the barrier: glass fragments; glass fragments; crumbly deposition of glass particles; glass fragments caked with the metal of the projectile; fragments of the projectile; spherical metal particles; overlays of molten metal in the form of puddles. With the help of energy dispersion analysis, it was possible to determine the elemental composition of the particles of the barrier, the fire shell, and to identify the overlap of the target particles. Conclusion. As a result of the experimental study, it was found that the use of SEM and EDS analysis significantly increases the effectiveness and evidence-based expert research in solving the problems of causing damage through the barrier-the windscreen of modern cars. Key words: scanning electron microscopy, gunshot trauma, energy dispersion analysis, fragments of the barrier.

Correction: Camiola, V.D., et al. Equilibrium Wigner Function for Fermions and Bosons in the Case of a General Energy Dispersion Relation. Entropy 2020, 22, 1023

In Section 5 of Equilibrium Wigner Function for Fermions and Bosons in the Case of a General Energy Dispersion Relation [...]