Search

The isochoric heat conductivity in plastic phases I and II solid cyclopentane(C5H10) is investigated. Various temperature dependents of heat conductivity indicate various characteristics of a rotary motion of molecules in these phases. In phase II, the motion of the molecules has mainly character of libration, and in phase I, is close to the hindered rotation. In a phase I of cyclopentane an increase in the slope of isochoric heat conductivity with the growth of the density of samples is revealed. Such behavior of heat conductivity is not characteristic of molecular crystals and can point to a contribution of “pseudorotation” to heat transfer. In phase II, cyclopentane the behavior of heat conductivity is close to a case of strong scattering of phonons.

This study investigates the problem of estimating various aspects and qualitative features of innovative development. A new methodological approach to comprehensively assessing the polystructural nature of modern innovative development in the new EU member states and other EU countries is proposed, which allows us to identify growth points and promising areas to increase their innovative development. Aspects such as information adaptability, innovative orientation, and synergetic efficiency are considered. The analysis is based on a logical evaluation of indicators that characterize science, technology, and the digital society in accordance with the data presented in the public domain, from which the main indicators that characterize these three aspects of the EU’s innovative development were selected. According to the algorithm of the matrix method for the new EU member states and other EU countries, the maximum (reference) value was chosen for each indicator and the coefficient of compliance with the reference value of a particular indicator was calculated. As a result, integrated indicators of assessing information adaptability, innovative orientation, and synergetic efficiency and the integrated indicator of innovative development of the EU countries were calculated, which allowed us to rate them. The innovative development of the economies of the EU countries differs significantly in some indicators and aspects. The assessment and comparison of innovative development at the national level depends on many factors but is primarily determined by public policy and national priorities of a particular country. That is why a promising direction of increasing the innovative development of all EU countries should be, first of all, the further development of their mutual exchange of technologies based on the existing integration scientific and technical potential. W niniejszym opracowaniu poruszono problem szacowania różnych aspektów i cech jakościowych rozwoju innowacyjnego. Zaproponowano nowe podejście metodologiczne do kompleksowej oceny polistrukturalnego charakteru nowoczesnego rozwoju innowacyjnego w nowych państwach członkowskich UE i pozostałych państwach członkowskich UE. To pozwoliło na identyfikację punktów wzrostu i obiecujących obszarów umożliwiających zwiększanie ich innowacyjnego rozwoju. Przeanalizowano takie aspekty jak zdolność do absorpcji informacji, innowacyjna orientacja i efektywność synergii. Analiza opiera się na logicznej ocenie wskaźników charakteryzujących naukę, technologię i społeczeństwo cyfrowe w oparciu o dane dostępne publicznie, z których wybrano główne wskaźniki charakteryzujące te trzy aspekty innowacyjnego rozwoju UE. Według algorytmu metody macierzowej dla nowych państw członkowskich UE i pozostałych państw UE dla każdego wskaźnika wybrano wartość maksymalną (referencyjną) i obliczono współczynnik zgodności z wartością referencyjną danego wskaźnika. W efekcie obliczono zintegrowane wskaźniki oceny zdolności do absorpcji informacji, innowacyjnej orientacji i efektywności synergii oraz zintegrowany wskaźnik rozwoju innowacyjnego krajów UE, co pozwoliło na ich ocenę. Innowacyjny rozwój gospodarek krajów UE różni się znacznie w odniesieniu do niektórych wskaźników i aspektów. Ocena i porównanie rozwoju innowacyjnego na poziomie krajowym zależą od wielu czynników, ale są determinowane przede wszystkim polityką państwa i priorytetami danego kraju. Dlatego obiecującym kierunkiem zwiększania innowacyjności wszystkich krajów UE powinien być przede wszystkim dalszy rozwój wzajemnej wymiany technologii w oparciu o istniejący naukowo‑techniczny potencjał integracji.

The problem of selecting a method for ensuring the reliability of the unprepared fluid transport facilities of an unprepared fluid in the presence of carbon dioxide is considered. Carbon dioxide corrosion is one of the dangerous types of damage to field and main pipelines. It has been shown that dynamic autoclave tests should be carried out during staged laboratory tests in order to determine the intensity of carbon dioxide corrosion and to select the optimal method of protection. A hypothesis about the imperfection of the existing generally accepted approaches to dynamic corrosion testing has been put forward and confirmed. A test procedure based on the use of an autoclave with an overhead stirrer, developed using elements of mathematical modeling, is proposed. The flows created in the autoclave provide corrosive wear of the sample surface similar to the internal surfaces elements wear of the pipelines piping of gas condensate wells. The autoclave makes it possible to simulate the effect of the organic phase on the flow rate and the nature of corrosion damage to the metal surface, as well as the effect of the stirrer rotation speed and, accordingly, the shear stress of the cross section on the corrosion rate in the presence/absence of a corrosion inhibitor. The given results of staged tests make it possible to judge the high efficiency of the developed test procedure.

Phase V– T diagrams of solid halomethanes R12 (CF2Cl2), R20 (CHCl3), R22 (CHF2Cl), R23 (CHF3), and R30 (CH2Cl2) were constructed using both literature and our experimental data obtained during the study of isochoric thermal conductivity. The carbon tetrachloride V– T phase diagram was presented earlier. The jumps in molar volume during melting and the boundaries of the existence of phases have been determined. At pressures up to several kbar halomethanes R12, R20, R23, and R30 exist in only one crystal modification, whereas R22 shows a shift type phase transition near 59 K, and the high-temperature phase of CCl4 is dynamically orientationaly disordered. Experimental values of thermal pressures ( dP/ dT) V and dPm/ dT on melting line were measured, and they are compared with those calculated by the Clapeyron-Clausius formula.

Experimental material has been given that shows egg boiling optimal time in dependence on egg mass for the best sensory qualities preservation: smell, color and taste. Egg yolk outer membrane color change has been shown in dependence of boiling time and possibility of this process colorimetric control.

Phase V– T diagrams of freons of the ethane series R152a (CH3-CHF2), R134a (CF3-CH2F), and hexafluoro-ethane (C2F6) were constructed using both literature and our own experimental data. The ethane V– T phase diagram was presented earlier. The jumps in the molar volume during melting and the boundaries of the existence of dynamically orientationally disordered phases have been determined. The V– T phase diagrams of freons of the ethane series turned out to be similar in type, with the exception of ethane, which has three phases near melting.

An experimental material is presented showing the possibility of using mobile colorimeters for reliable color evaluation of solid egg products.

The urgency of improving the performance properties of concrete, as the most common building materials, is noted. The reasons for the increased demand for products made of high-strength gas-filled concrete are stated. It is shown that the current volume of polymer fibers production makes it possible to predict the possibility of their widespread use in construction. The information on the physical and mechanical properties of synthetic fiber, which is important for its successful use as dispersed reinforcement of foam concrete mixtures, is presented. The technology of manufacturing experimental samples and methods of their testing are described. It has been established that the introduction of any synthetic fiber into the foam mixture formulation improves the structural properties of foam concrete, however, the measure of efficiency depends on the ratio between the concrete moduli of elasticity and fiber. The greater the value of the elastic modulus of the fiber used, the higher the technical effect of its use in fiber-reinforced concrete for structural purposes can be.

An overview of modern international catalogs (atlases, panels) of colors and digital color systems that can be successfully used for standardization and organoleptic evaluation of products, in particular poultry products, is presented.

Biochemical parameters of blood serum in resistant and susceptible to rubella pathogens groups of carp at the end of the feeding period are studied. The material was taken from 6 individuals of the Angelina scaly rubella-resistant breed kept at the experimental pond base "Sunoga" of the Papanin Institute for Biology of Inland Waters RAS, Yaroslavl oblast. For comparison, we used same-age carps from the fish farm "Kirya", Chuvash Republic, susceptible to rubella pathogens: 8 specimens of scaly and 8 mirror carps. Blood samples were taken from the caudal vein of the fish under study. The tube with blood was left at room temperature. After coagulation, the serum was taken with a fine needle syringe and transferred to an Eppendorf tube. Serum samples were frozen prior to testing. The analyzed individuals of the Angelina rubella-resistant breed differ from the scaly and mirror carp in high levels of total protein, albumins, glucose, urea, alkaline phosphatase, triglycerides, cholesterol and low levels of lipids and alanine aminotransferase. A comparative analysis with previously obtained data after wintering shows differences between the autumn and spring data. In the Angelina breed, the levels of most indicators significantly increase during the fattening period. The content of total protein increases several times, mainly due to globulins, glucose, urea, alkaline phosphatase, triglycerides. Thus, the metabolic processes aimed at the accumulation of proteins, stored lipids and carbohydrates increase in the organism of rubella-resistant carps. This is probably due to some specific characteristics of the Angelina breed, which allows the fish organism to successfully resist an infection with rubella pathogens in spring. The results of this study can be used in breeding for immunity resistance and for assessing the health status of fish in aquaculture.

The problem of low usage of e-government solutions is common in many emerging countries. Is Russia experiencing the same issue? Are there sufficient conditions to grow the usage of e-government solutions (internet penetration rate, rights for the citizens to approach the government remotely, trust in government, computer skills and usage perception, etc.)? Do the use rates for public e-services portals and e-participation platforms equal one another? Based on scholarly articles, analytical reports, laws, regulations, and the results of citizens’ surveys, the research considers some factors that influence e-government implementation in Russia. The findings highlighted that the penetration of the Internet in Russia is high and that citizens have the right to approach the government remotely and trust the government. The survey demonstrated that the users believe they have enough knowledge and skills for using public e-services portals and e-participation platforms. At the same time, within the same institutional framework, the level of use of public e-services was still low in 2018 (29% of the respondents), and it was even lower for e-participation platforms (17% of the respondents). This observation suggests that the nature of e-government solutions (whether it is a public e-service portal or e-participation platform) should be considered when governments are developing roll-out programs.

The paper substantiates a necessity to improve operational properties of building products and structures that are used at construction of transport objects. It shows that the modern approach to design ated problem is in the course of fibre reinforcement of fused and cellular concretes. The work provides reference and experimental data on the level of positive influence of metal and synthetic fibre on operational properties of concretes of various structures. On the basis of experimental results the authors have presented a fundamental possibility of complex improvement of engineering structures properties by using bar fibre-glass reinforcement. As a result, they have formulated a number of perspective technologies suitable for creating building elements from fibre and complexreinforced concretes for transport objects.

A review of scientific Russian and foreign articles devoted to the development of endogenous intoxication in chronic inflammatory pathology of the lymphoepithelial pharyngeal ring is carried out. Chronic tonsillitis and adenoiditis in children are one of the unsolved issues in otorhinolaryngology. Chronic tonsillitis is a chronic inflammation of the palatine tonsils characterized by recurrent exacerbations in the form of tonsillitis and a general toxic-allergic reaction. Adenoid vegetation is a pathological hypertrophy of the pharyngeal tonsil. Chronic adenoiditis is a chronic polyetiologic disease, which is based on a violation of the physiological immune processes of the pharyngeal tonsil. In children, one cannot talk about an isolated inflammation of the pharyngeal tonsil, since as a result of exposure to antigens, an immune response arises, which involves all structures of the lymphoepithelial pharyngeal ring in the process, therefore some authors distinguish the term «adenotonsillitis». With pronounced activation of microflora in the nasopharynx and oropharynx, the body’s resistance to pathogenic microorganisms decreases, as a result of which decay products and toxins damage the vascular endothelium, disrupt their permeability and, penetrating through the epithelial barrier, contribute to the development of chronic intoxication and sensitization of the body. Endogenous intoxication is a polyetiologic and polypathogenetic syndrome characterized by the accumulation of endogenous toxins in tissues and biological fluids. Diagnostics of the endogenous intoxication severity includes a number of clinical and laboratory indicators and immunological markers. But, despite the constant improvement of the research methods, the issue of endotoxicosis diagnosis in chronic tonsillitis and adenoiditis remains insufficiently studied. As a result of the inadequate diagnosis, there is often a simultaneous removal of the pharyngeal and palatine tonsils, which in turn can lead to irreversible consequences.

Field (bypass) tests of the pipes made of 09G2S, 13KhFA and 08KhMFA steels are carried out under the conditions of the operating oil pipeline in the Priobskoye deposit with a high content of CO2 and Cl–. The test period is two years. The medium composition initiates intense carbon dioxide corrosion in a local aggressive form. Corrosion damages have a complex volumetric configuration and consist of numerous channels. The local corrosion rate is more than four times higher than the general corrosion rate. According to an increase in the corrosion resistance under the operating conditions, the steels under study are arranged in the following sequence: 09G2S → 13KhFA → 08KhMFA.

The problem of exploring a territory for designing a full-scale gamma observatory is discussed. It is caused by the need to increase the sensitivity and energy threshold for detecting gamma rays of the existing TAIGA gamma observatory array. The study of astroclimatic conditions over the territory of the Khovsgol Aimag (Mongolia) was carried out for the purposes of performing nighttime astrophysical observations. Spatial distributions of cloudless events fraction and atmospheric water vapor content were obtained for several periods of active phases of astrophysical observations using the night-time data from the VIIRS instrument onboard Suomi NPP satellite as well as hyperspectrometer AIRS onboard Aqua satellite. Analysis of satellite data has shown that upon topographic and infrastructure criteria, the plateau of Lake Khuvsgul is the most suitable region for the deployment of a full-scale gamma-ray observatory with a hybrid detector system. According to VIIRS/SNPP data over the territory of interest for two seasons, it was revealed that the average fraction of cloudless events is about 65 % and the atmospheric water vapor content (according to AIRS/ Aqua data) is low, amounting to 2-2.5 kg/m2.

A detailed theoretical analysis of the processes occurring in foam concrete mixtures in the period between their laying in the mold and the phase transition “from viscous to solid” completion moment. The stages of the formation of inter-pore septa in foam concrete mixtures, depending on the material nature and shape of the solid dispersed particles of raw materials, are sequentially considered. It is shown that their shape affects the mass transfer rate and the density of inter-pore septa during the structure formation. The reasons for the fluctuations in the elasticity of foam films during the predominance period of viscous bonds between the components of the raw material are described. The gas inclusions factors of influence on the dispersion parameters and, as a consequence, the aggregative stability of foam mixtures, are ranked. The positive dispersed reinforcement effect on the mass transfer processes in mixtures and the hardened concrete strength is substantiated.

The impact of thermal treatment modes upon durability of steel 09G2S to carbonic acid corrosion under laboratory and industrial conditions is considered. The results of the works carried out witness of the necessity in the development of new special systems of alloying ensuring the increase metal durability in environment containing CO2 high concentrations.

The properties of bases of matroids are considered. Particular attention is paid connectivity of the matroid base graph.

The Atmospheric Infrared Sounder (AIRS) is a hyperspectral instrument with 2378 channels. It is a part of the Aqua space platform equipment. It registers outgoing longwave radiation in the IR-band from 3.74 to 15.4 microns. To correctly retrieve the atmospheric profiles in the presence of cloud structures, AIRS measurement processing scheme uses data from the 15-channel AMSU-A microwave instrument, which is also installed on Aqua. The paper proposes a technology for synthesizing the readings of AMSU-A, that failed in the fall of 2015, by using observations from the 22-channel radiometer of the Advanced Technology Microwave Sounder (ATMS) installed on Suomi-NPP and NOAA-20 satellites. These platforms were launched in 2011 and 2018, respectively. The transition between the coordinate grids of the two instruments was implemented by the “resample” software library, which transferred the radiance temperature values obtained by ATMS radiometer to the AMSU-A irregular measurement grid by means of a Gaussian function. The method was tested for the Aqua and Suomi-NPP neighboring orbits of 2015, when AMSU-A was still operating normally. It is established that the root-mean-square deviation of the radiance temperature values during the transferring of ATMS data to the AMSU-A coordinate grid does not exceed 1%, and the correlation coefficient is 0.98. Using the synthesized AMSU-A readings, reconstructions of the parameters of the atmosphere and the underlying surface were carried out. The analysis of the obtained results showed the suitability of the proposed method of replacing the microwave data from AMSU by the data from ATMS instruments. It should be noted that in the case of a rapidly changing atmosphere, for example, with a strong wind, the use of ATMS observations is possible only if the difference in the passage time of the two satellites does not exceed 10–15 minutes.

The article discusses approaches to the implementation of an informatics course and highlights the special place of robotics in modern informatics teaching programs. The importance of early training in the basics of mechanics, algorithmization and robotics is noted. The main characteristics of the author's program are given, the use of mechanical puzzles in it is highlighted. On the example of several tasks, the features and tasks of mechanical puzzles in the Robotics program for grades 2–4 are explained. The tasks of mechanical puzzles are used both to consolidate the material and to activate the thinking process of students, which makes them important in the study of robotics. The article provides examples of crown, canon, and belt gear using the LEGO WeDo 2.0 Education Set.

We present here results from model experiments with poikilotherm hydrobionts belonging to different taxonomic groups: crayfish (Pontatacus leptodactylus), fish, i.e., carp (Cyprinus carpio), and amphibians, i.e., axolotl (Ambystoma mexicanum). Fatty dystrophy of the hepatopancreas in crayfish and pathology of the pancreas in carp were modeled by administration of alloxan at doses of 50 and 200 mg/kg, respectively. Crayfish received alloxan into the ventral sinus and fish were treated i.p. Liver pathology in fish was modeled by administration of seven doses of paracetamol 15 g/kg over 14 days. Parenteral administration (into the central sinus of crayfish, i.v. in fish, and i.p. in axolotls) of stem and progenitor cells from mammalian donors (mice) at a dose of 10·106 bone marrow cells (BMC) was found to have effects. Fish and crayfish with pathology displayed intensive tissue regeneration and restoration of damaged parenchymatous organs. Administration of stem cells accelerated the process of regeneration of amputated limbs in axolotls. These results extend the potential of medical-biological studies of in vivo models.

This work is devoted to the study of the stress-strain state (SSS) model by using the finite-elements method (FEM) of jaw-bones (the system of lower jaw (LJ) - upper jaw (UJ)) and is the next step in understanding the mechanism of mastication as one of the main functions of the maxillofacial system (MFS). At the same time, reliable information about SSS of the LJ and UJ bones with account of the peculiarities of their anatomical and topographical structure will, firstly, reveal the main regularities of the jaw bone deformations. It will make possible to choose prosthetic appliances that will provide the minimum level of intensity of atrophic processes in supporting tissues and the most favorable biomechanical interaction of bone structures, soft tissues and elements of the prosthetic appliance. The results of mathematical calculations allowed to identify the characteristic features of the deformation and interaction of the LJ and UJ bones, which will ensure a scientifically based choice of those prosthetic appliances contributing to the most prolonged and normal functioning of the maxillofacial system in general.

The isochoric thermal conductivity of Kr₀.₆₃Xe₀.₃₇ solid solution has been investigated for three samples with different molar volumes in the temperature range from 80 K to the onset of melting, as well as the thermal conductivity of the ternary (Kr₀.₆₃Ar₀.₁₈₅Xe₀.₁₈₅) and quaternary (Kr₀.₆₃Ar₀.₁₂Xe₀.₁₂(CH₄)0.₁₃) solid solutions. It is found that for multi-component alloys, the thermal conductivity reaches a minimum, whereby adding more impurity atoms in the solid solution does not affect the thermal conductivity in agreement with the recent nonequilibrium molecular dynamics calculations for argon. The phonon contribution to the total thermal conductivity depends significantly on molar volume of sample and impurity concentration, in contrast to the contribution of diffusive modes, which is practically independent of these factors. Досліджено ізохорну теплопровідність твердого розчину Kr₀.₆₃Xe₀.₃₇ для трьох зразків з різними молярними об’ємами в інтервалі температур від 80 К до початку плавлення, а також теплопровідність потрійного (Kr₀.₆₃Ar₀.₁₈₅Xe₀.₁₈₅) та чотирьохкомпонентного (Kr₀.₆₃Ar₀.₁₂Xe₀.₁₂(CH₄)0.₁₃) твердих розчинів. Виявлено, що для багатокомпонентних розчинів теплопровідність досягає мінімуму, в результаті чого подальше додавання домішкових атомів в твердий розчин не впливає на теплопровідність відповідно до недавніх розрахунків з використанням методів нерівноважної молекулярної динаміки (NEMD) для аргону. Фононний внесок в теплопровідність істотно залежить від молярного об’єму зразка та концентрації домішки, на відміну від вкладу дифузних мод, який практично не залежить від цих чинників Исследована изохорная теплопроводность твердого раствора Kr₀.₆₃Xe₀.₃₇ для трех образцов с разными молярными объемами в интервале температур от 80 К до начала плавления, а также теплопроводность тройного (Kr₀.₆₃Ar₀.₁₈₅Xe₀.₁₈₅) и четырехкомпонентного (Kr₀.₆₃Ar₀.₁₂Xe₀.₁₂(CH₄)0.₁₃) твердых растворов. Обнаружено, что для многокомпонентных растворов теплопроводность достигает минимума, в результате чего дальнейшее добавление примесных атомов в твердый раствор не влияет на теплопроводность в соответствии с недавними расчетами с использованием методов неравновесной молекулярной динамики (NEMD) для аргона. Фононный вклад в теплопроводность существенно зависит от молярного объема образца и концентрации примеси, в отличие от вклада диффузных мод, который практически не зависит от этих факторов.

In this report it is offered modified discrete Fourier transform giving fast (observation window 10 ms), precise and simple for realization the algorithm of receiving estimations of parameters of sinusoidal oscillation, according to the IEEE Standard C37.118 requirements.

The proposed work is devoted to the problem of dynamic display of popularity indicators of a particular hyperlink directly on the web-page containing these links. The potential interest in such solutions is discussed, using the example of including an clicks counter as part of a bibliographic hyperlink of an online scientific publication. The implementation of the necessary software tools for this based on the JavaSript language and AJAX technology is considered.

Historically, power distribution systems did not require elaborate monitoring schemes. With radial topology and one-way power flow, it was only necessary to evaluate the envelope of design conditions (i.e., peak loads or fault currents), rather than continually observe the operating state. But the growth of distributed energy resources, such as renewable generation, electric vehicles, and demand response programs, introduces more short-term and unpredicted fluctuations and disturbances [1] . This suggests a need for more refined measurement, given both the challenge of managing increased variability and uncertainty and the presence of a higher level of narrowband and broadband interference and measurement noise.

Single-molecule detection and manipulation is a powerful tool for unraveling dynamic biological processes. Unfortunately, success in such experiments is often challenged by tethering the biomolecule(s) of interest to a biocompatible surface. Here, we describe a robust surface passivation method by dense polymer brush grafting, based on optimized polyethylene glycol (PEG) deposition conditions, exactly at the lower critical point of an aqueous biphasic PEG-salt system. The increased biocompatibility achieved, compared with PEG deposition in sub-optimal conditions away from the critical point, allowed us to successfully detect the assembly and function of a large macromolecular machine, a fluorescent-labeled multi-subunit, human RNA Polymerase II Transcription Pre-Initiation Complex, on single, promoter-containing, surface-immobilized DNA molecules. This platform will enable probing the complex biochemistry and dynamics of large, multi-subunit macromolecular assemblies, such as during the initiation of human RNA Pol II transcription, at the single-molecule level.

The paper presents a completely new composition of the ceramic mass for production of ceramic tiles for interior lining of walls, on the basis of fusible clay. The optimal compositions of jade engobe and glossy glaze, the most suitable for this composition, are determined. A new technological scheme is developed for production of ceramic tiles for interior lining based on dolerite and fusible clay. The curve of firing, which is the most suitable for charge masses and decorative coating compositions being used, has been constructed. Subject: ceramic mass for the production of ceramic facing tiles. Ceramic tiles are the most popular building material in Russia. The most promising technology for its production from the standpoint of technical and economic efficiency is the technology of rapid single firing, which is rarely used at the plants of our country. In this regard, the development and implementation of new effective compositions of ceramic masses and decorative coatings that are the most compatible with the specifics of rapid single firing technology, based on new unconventional raw materials, are very relevant and promising. Research objectives: development of technological parameters, compositions of ceramic masses and decorative coatings of ceramic tiles for the internal wall lining that provide an increase in tiles production efficiency using the technology of rapid single firing through the use of non-traditional plagioclase-pyroxene raw materials: dolerites, loam and technogenic raw materials. Materials and methods: technological, numerical and experimental studies were conducted. To select the optimal composition of the ceramic mass, the method of mathematical planning was used, namely the simplex-centroid design of Scheffe. To identify the scientific foundations of the energy-efficient production technology being developed, differential thermal and X-ray phase, optical, electron microscopic and dilatometric studies were applied. Results: a composition of a moderately red-hot mass was developed for the production of ceramic tiles for the internal lining of walls using the technology of rapid single firing; compositions of engobe and glaze coatings were developed with improved physical, mechanical and aesthetic properties due to the use of new, non-traditional types of raw materials; an energy-efficient technological scheme for the production of ceramic facing tiles of the developed compositions was proposed, which makes it possible to increase the competitiveness of the finished product. Conclusions: the developed compositions of charge materials and their preparation can be used in the production of ceramic tiles for internal wall lining using the technology of rapid single firing at already existing plants and newly constructed ones.