Current Physics - Current Issue

BackgroundRecently, we obtained a unitary theory of quantum mechanics and general relativity, where a quantum particle is a continuous distribution of matter in the two conjugate spaces of the coordinates and momentum, quantized by the equality of the mass parameter describing the relativistic dynamics of the matter, with the mass as an integral of the matter density. However, in this framework, we have not expli Read More

Elliptical galaxies, as one of the fundamental types of galaxies, have attracted astronomers due to their intriguing properties. In this review, we explore the intrinsic shape of elliptical galaxies, a field that plays a pivotal role in understanding their formation, evolution, and interactions within the cosmos. Methods for intrinsic shape determination using photometric and kinematic methods are extensively discussed. The use of Read More

BackgroundCurrently, some modern spectroscopic applications require sub-terahertz and terahertz continuous-wave electromagnetic radiation sources with power levels from 0.1 to 100 W. Gyrotron, a powerful high-frequency vacuum electronics device, is considered one of the promising sources for these aims.MethodsModification of the gyrotron design promotes the widespread use of these devices for DNP/NMR spectro Read More

In this study, we prove that it is necessary to introduce the non-zero gluon masses into the fundamental Lagrangian of Quantum Chromodynamics in order to describe the mass gap in the reaction of electron-positron annihilation into hadrons. Further, in this work, a new restriction on the gluon masses is imposed, and the renormalized theory with non-zero Lagrangian gluon masses is presented.

IntroductionIn our previous published papers, considering 3 large atomic gravitational constants assumed to be associated with weak, strong and electromagnetic interactions, we have proposed the existence of a nuclear charge of magnitude, en=2.95e and developed a nuclear mass formula associated with strong and weak interactions having 4 simple terms and only one energy coefficient.MethodsTwo important assumptions Read More

BackgroundCalculations of the solar modulation parameter (Φ) over the past millennia typically use the relationship between the production rate of cosmogenic isotopes, the earth's dipole moment, and the magnitude of Φ. The cosmogenic isotopes 14C and 10Be are typically used in these studies. When studying solar modulation, the cyclic change in dipole tilt is usually not taken into account, which affects estimates of past Read More

BackgroundA procedure for determining the elastic and viscous properties of the sample material on the basis of the forced vibrations of a sample of mass loaded with a certain mass is developed. One of advantages of using the top mass instead of a rigid fixation is the appearance of an additional deformation resonance, the frequency of which is times smaller than the resonance frequency of the fixed sample.MethodTh Read More

The challenge of energy conversion and enhancement has been a problem in the world of lighting technologies as the population and global industrialization grow rapidly. Solid-state lighting (SSL) has proven to be a better alternative in the illumination industry because of its environmentally friendly and high energy efficiency. Lanthanide-doped phosphors have gained global attention in SSL because they have Read More

BackgroundIndividually, metal nanoparticles (NPs) and conducting polymers show unique properties due to small size, large surface area, and high order of conductivity. But their combination may result in a synergistic effect in properties.MethodsThe NiO NPs and conducting polymer Polyaniline were prepared by modified Sol-gel and chemical oxidative methods, respectively. Powder XRD, FTIR, TEM, and UV-visible methods were Read More

BackgroundThis paper presents a model for sputtering heterogeneous two-component materials with light ions.MethodsThe model, based on two sputtering mechanisms, makes it possible to calculate the total sputtering coefficients of the target components, and it is easily transformed for the case of sputtering different types of targets. Model testing was conducted for the case of sputtering homogeneous tungsten carbide tar Read More

BackgroundThere are a lot of phytophagous and harmful animals in agriculture and forestry in the entire world. The ultimate goal in locust control is the use of preventive and proactive methods that disrupt the environment to the least possible extent. This would make agricultural production easier and more secure in the many regions where growing crops is of vital importance.MethodsThe possibility of using high-power micr Read More

IntroductionTwo-dimensional (2D) materials, such as MXene (Ti3C2Tx), have garnered extensive attention in recent years due to their exceptional performance across various domains. The flake size of Ti3C2Tx notably influences its specific surface area, a pivotal factor in interfacial interactions within electrochemistry.MethodsPresently, modifying the flake size of bulk Ti3C2Tx typically involves complex and costly pro Read More

IntroductionLaboratory simulations can benefit ground- and space-based observations of icy bodies in outer space. It is well-known that NH3 and CO2 can interact, forming ammonium carbamate (CH6N2O2).MethodsThis study examines NH3 and CO2 in thermally processed H2O-rich ices in the laboratory via mid-infrared absorption spectroscopy. In particular, the presence of CO2 in NH3-ice mixtures thermally annealed at 1 Read More

BackgroundIn this paper, we propose solving the specific original problem of control synthesis of spacecraft attitude. Optimization of the control program is made with the use of a new criterion of quality that combines energy costs and duration of reorientation under restrictions on control (the presence of a time factor limits the duration of slew maneuver).MethodsThe construction of optimal control for angular momentum Read More