A comparative analysis of gamma and hadron families at the superhigh energies recorded in experiment Pamir

A comparative analysis of hadron and gamma families which have undergone the decascading procedure is made. Results are compared with different models of interactions. In hadron families with energies Summary E sub H sup gamma 20 TeV as well as in gamma families with energies Summary E sub gamma 70 TeV, increasing azimuthal anisotropy is observed

Magnetic properties of HO2 thin films

We report on the magnetic and transport studies of hafnium oxide thin films grown by pulsed-laser deposition on sapphire substrates under different oxygen pressures, ranging from 10-7 to 10-1 mbar. Some physical properties of these thin films appear to depend on the oxygen pressure during growth: the film grown at low oxygen pressure (P ~= 10-7 mbar) has a metallic aspect and is conducting, with a positive Hall signal, while those grown under higher oxygen pressures (7 x 10-5 <= P <= 0.4 mbar) are insulating. However, no intrinsic ferromagnetic signal could be attributed to the HfO2 films, irrespective of the oxygen pressure during the deposition.Comment: 1

Reaction-diffusive dynamics of number-conserving dissipative quantum state preparation

The use of dissipation for the controlled creation of nontrivial quantum many-body correlated states is of much fundamental and practical interest. What is the result of imposing number conservation, which, in closed system, gives rise to diffusive spreading? We investigate this question for a paradigmatic model of a two-band system, with dissipative dynamics aiming to empty one band and to populate the other, which had been introduced before for the dissipative stabilization of topological states. Going beyond the mean-field treatment of the dissipative dynamics, we demonstrate the emergence of a diffusive regime for the particle and hole density modes at intermediate length- and time-scales, which, interestingly, can only be excited in nonlinear response to external fields. We also identify processes that limit the diffusive behavior of this mode at the longest length- and time-scales. Strikingly, we find that these processes lead to a reaction-diffusion dynamics governed by the Fisher-Kolmogorov-Petrovsky-Piskunov equation, making the designed dark state unstable towards a state with a finite particle and hole density.Comment: 25 pages, 11 figure

Reaction-diffusive dynamics of number-conserving dissipative quantum state preparation

The use of dissipation for the controlled creation of nontrivial quantum many-body correlated states is of much fundamental and practical interest. What is the result of imposing number conservation, which, in closed system, gives rise to diffusive spreading? We investigate this question for a paradigmatic model of a two-band system, with dissipative dynamics aiming to empty one band and to populate the other, which had been introduced before for the dissipative stabilization of topological states. Going beyond the mean-field treatment of the dissipative dynamics, we demonstrate the emergence of a diffusive regime for the particle and hole density modes at intermediate length- and time-scales, which, interestingly, can only be excited in nonlinear response to external fields. We also identify processes that limit the diffusive behavior of this mode at the longest length- and time-scales. Strikingly, we find that these processes lead to a reaction-diffusion dynamics governed by the Fisher-Kolmogorov-Petrovsky-Piskunov equation, making the designed dark state unstable towards a state with a finite particle and hole density

MATHEMATICAL MODELLING OF QUAZISTEADY MODE OF BEARING AIR BUFFER FILLING

Summary. Today the only way to eliminate contact with the product during the manufacturing process is to provide a support surface under its support surface air buffer layer formed due to the expiration of the working environment through holes perforated gas distribution grids forms. There proposed the method of contactless formation of products consisting of composite materials by the means of air buffer in the article. The results of theoretical and experimental investigations of hydro-gas-dynamic processes occurring when casting of organic- mineral composite material onto the bearing air buffer expressed in the form of mathematical description realizing original hypotheses reflected in the choice of transformation algorithm and limiting conditions are presented. On the base of obtained mathematical model the algorithm of calculation of optimum parameters of transporting systems with discretely powered gas buffer is developed. The method of deduction of a semi-finished product on the gas buffer, which allows to level the pressure field under the bearing surface of the deduction object due to the usage of devices of pseudo fluidized granular material in pneumatic chambers is offered. The application of this method allows to eliminate the possibility of contact between the composite material and the working surface of the equipment and also to reduce the cost of production of pneumatic devices, to improve operational characteristics of this equipment. Submitted depending allowed to develop the methodology and implementation of engineering calculation device for non-contact casting composite materials on air buffer, semi-industrial and industrial variants were created and put into production

Renewable energy-based plant remote monitoring complex using Wi-Fi channels and elements of artificial vision

This paper presents an analysis of the renewable energy-based plant operation using special systems designed for monitoring the plant operation parameters and for performing the atmospheric parameters control. © 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen

Chromato-Mass-Spectrometric Identification of Glycosides of Phenylethylamides of Hydroxycinnamic Acids in a Suspension Cell Culture of Mandragora turcomanica

Abstract: A detailed UPLC-ESI-MS study was performed on secondary metabolites in the biomass of a suspension plant cell culture of Turkmenian mandrake (Mandragora turcomanica Mizgir.), which has been maintained for over 30 years. Both compounds widespread in plants (amides of hydroxycinnamic acids with putrescine and feruloyltyramine) and very rare metabolites (glycosides of phenylethylamides of hydroxycinnamic acids) have been identified. The identification of compounds was carried out using ultra-performance liquid chromatography combined with high-resolution mass spectrometry with electrospray ionization (UPLC-ESI-MS) and detection of positive and negative ion modes. Structural analysis of glycosides of phenylethylamides of ferulic acid was carried out on the basis of interpreting MS spectra obtained by fragmentation of protonated molecular ions [M + H]+ of these compounds in the ionization source. Based on the obtained results, the presence of five hexosides of ferulic acid, three of which were with tyramine residues and one each with methoxytyramine and octopamine residues, respectively, in the M. turcomanica cells cultivated in vitro was revealed. One of the detected glycosides belongs to a very rare group of plant metabolites: feruloyltyramine dihexosides. The obtained results confirm the concept developed in the authors' works on the change in specialized metabolism of plant cells cultivated in vitro and indicate that dedifferentiated proliferating cells retain the ability to form a complex set of secondary metabolites, which contradicts the prevailing ideas about the loss or decrease in the intensity of specialized metabolism in plant cell cultures. © 2021, The Author(s).The work on growing the cell culture was carried out using the equipment of the Scientific and Production Complex Based on the Development of Nature-Saving Hi-Tech Biotechnology for Obtaining High-Quality Raw Materials for Pharmaceutical and Food Purposes Using Cultured Cells and Organs of Higher Plants or Microalgae, including the equipment of the Unique Scientific Installations All-Russia Collection of Cell Cultures of Higher Plants and the Experimental Biotechnological Complex of the Timiryazev Institute of Plant Physiology of the Russian Academy of Sciences (UNU OBK IGF RAS and UNU VRKKK BP IGF RAS) with financial support from the Megagrant of the Government of the Russian Federation (agreement no. 075-15-2019-1882)

Контактная кристаллизация с использованием охлажденных растворителей.

The new technique of contact crystallization with using of cooled solvent has been proposed and theoretically analyzed. This technique allows to exclude contamination of separated products by coolants and to simplify its instrumentation.Предложен и теоретически проанализирован новый вариант контактной кристаллизации с использованием охлажденных растворителей, который позволяет исключить загрязнение продуктов разделения хладоагентами и упростить его аппаратурное оформление