List of publications on a keyword: «formula»

A theoretical estimate of the dependence of ultimate strength on the physical properties of a solid substance—such as density, molecular weight, melting point, and enthalpy of fusion—has been obtained. This dependence explains how these properties influence the material’s strength based on the “unpacking” concept of substance matter. The physical limits of applicability for the concept of “force” in Newtonian mechanics, and its distinction from the “unpacking” concept, are substantiated. This dependence, while similar in form to the Clapeyron-Mendeleev equation for an ideal gas, has a different physical interpretation when applied to the ultimate strength of a solid. The calculated dependence was compared with tabulated data on the ultimate strength of 15 industrial metals. This model allows for the explanation and prediction of ultimate strength values for metals in the periodic table.

This article brings together previously published evidence of the unified nature of physical processes and phenomena in terms of changes in the energy of a substance molecule. The unified physical nature of all these physical phenomena has been proven, as a single multistage process of energetic unpacking of molecules of a substance, which is logical to call the molecular-energy concept of unpacking a substance. The considered processes include the following processes. Surface rupture, characterized by the surface tension coefficient. The melting process of a substance characterized by its melting point. A boiling process characterized by the boiling point. Evaporation (and condensation) process characterized by internal energy and enthalpy as well as critical point. The conclusions of the theory are confirmed by well-known empirical dependences and by reference books of the physical properties of simple substances: internal energy, enthalpy, surface tension, melting point, boiling point and critical point.

Redox processes provide the entire metabolic complex of warm-blooded organisms, while producing a significant amount of free radicals. Free radicals, despite their huge positive role in the body, are capable of forming conditions for the development of various pathogenetic conditions in the event of malfunctioning of the antioxidant defense. The state of homeostasis is indirectly monitored by the hematological characteristics of the blood, which makes it possible to use this aspect to analyze the physiological activity of the body's defense systems. The aim of the study was to study the reactive changes in the morphological composition of rat blood under the influence of quercetin, as a highly effective antioxidant.

Blood, as the internal environment of the body, is highly reactive and instantly reacts to the effects of various factors. As a system, blood is not only a self-regulating structure, but also a complex complex of components that are included in the system and dropped out of it as “requests” from tissues and organs. The level of functional activity of the blood system can sharply increase with deviations of physiological functions from the level optimal for metabolism. The aim of the study was to study the reactive changes in the morphological composition of rat blood under the influence of black chokeberry meal as a potential source of biologically active substances.

Issues of selection of rational end-to-end processes of production of functional food products for the population of the North of Russia, development of new formulations, promising equipment and technological processes for their production are considered.

Issues of selection of rational end-to-end processes of production of functional food products for the population of the North of Russia, development of new formulations, promising equipment and technological processes for their production are considered.

Issues of creation of technology of production of functional food products with balanced composition to ensure food security of the northern territories of the Russian Federation are considered.

Based on the analysis of the patents of the Russian Federation, a knowledge base has been formed in the field of methods and formulations for using the birch fungus chaga in obtaining new products and formulations for the pharmaceutical industry, medicine and the cosmetic industry.

The method of solving inventive problems implemented in Petrozavodsk State University is based on the use of functional and technological analysis and brainstorming. The methodology has been developed in the field of substantiating new equipment designs and functional food formulations.

The article presents methodological techniques for the formation of speech etiquette skills of younger students in the process of extracurricular activities in the Russian language. The proposed materials can be used by teachers in the educational process.

Based on the physical model of «unpacking» a fluid, published in 1983 to explain the physical nature of surface tension, an explanation of capillary phenomena was proposed. The unified physical nature of the condensation process and the processes in the capillaries expressed in terms of the surface tension of the liquid is proved. To prove the applicability of the «unpacking» model for capillary phenomena, an empirical Borelli-Jurin formula for determining the height of fluid lifting in capillaries was theoretically derived depending on the magnitude of the surface tension. The assumptions under which the formula is obtained are indicated. In addition, the article proposes a new formula for determining the maximum height of liquid lift in the capillaries, depending on the critical temperature of the liquid and the molecular weight of the liquid.

According to the properties of melting points and boiling points of the elements of the periodic table of D.I. Mendeleyev the application of the unpacking hypothesis of the substance was verified. The article contains the results of the verification. In general, according to the data for 98 substances taken from the information in Internet, convergence of results with an error of up to 40% for 73 substances was obtained. The effect of periodicity on the result is found. An exception to the calculated dependences was obtained for ten substances: noble gas and most halogens. A large discrepancy between the theoretical formulas and the reference data was also caused by the 14 elements of the middle groups.

The article proposes a method for calculating the taxonomic formula for the geoecological hazard of the cadastral district. The engineering-geological zoning map uses for calculating the balance of the territory by the hazard index – the basis of the taxonomic formula. The taxonomic formula as an open data set makes it possible to characterize the geoecological hazards of the territory of a district. The geoenvironmental hazard map of cadastral districts is necessary for regional model of spatial planning at the municipal level.

The article provides the research relating to the reaction of a new wheat variety “Ekaterina” to the application of chemical and biological plant protection agents and growth stimulants. The high ecological and climatic adaptability of Ekaterina wheat variety has been revealed and this is reflected in an insignificant decrease in crop yields (12–14%) under unfavorable conditions of cultivation in comparison with favorable conditions. The Ekaterina wheat variety have been processed with Grandsil Ultra, Zircon, Izagri Fors, Novosil preparations. This seed processing showed high efficiency during cold wet weather and hot dry-growing season. The effective seed processing of Ekaterina wheat variety with the Rostock, Fitolavin and Strekar preparations has been revealed only during extreme weather conditions.

This paper explores a new view of modern physics. New material is added to the modern mathematical physics. Filling a gap in physics theory and physical laws already in existence is the purpose of the article. The paper is devoted to contemporary issues. The work contains first development of formulas: gravitational pulse formula, vibration in pendulum formula, photon formula, three field energy density in atom formula, neutrino energy formula, equal energy of two kinds conversion formula and ray of light energy formula. The author introduces the conversion sign for scientific use in this article. The practical importance of the work involves innovative technology development.

The article contains a strict description of a situation in which the conditional probability of one event relative to another can be calculated as the probability of the first, provided that the second occurred. This gives a theoretical justification for the solutions of probabilistic problems using the concept of conditional probability.

The article presents the methodological methods of formation of skills of speech etiquette younger students. The proposed materials can be used by teachers in the educational process.

В данной статье рассматривается методика расчёта упругой системы подвески автомобиля класса Formula SAE. Сформулированы основные требования, предъявляемые к упругим системам подвесок автомобилей этого класса. Рассмотрены и проанализированы типы приводов упругих систем. Приведён пример расчёта и оптимизации параметров упругой системы передней и задней подвески. Проведён анализ геометрических параметров привода и полученных характеристик упругой системы подвески автомобиля класса Formula SAE.

This article describes some techniques that allow student to solve complex (seemingly) the task of science is not only without using a calculator, but even without performing complex mathematical calculations, allowing several times to reduce the time devoted to the solution of similar problems in the Unified State Exam.

We received theoretical formulas of the interconnection between melting, boiling and critical temperatures. Uniform physical representation of melting, boiling and evaporation processes was the basis for deriving the formula of interconnection between them. We use the concept of the material substance internal energy in terms of the molecules “unpacking” idea. The reference manual data on 85 substances from 13 to 855 degrees Kelvin confirms the theoretically derived formulas. We carried out the comparison of theoretical formulas and experimental data by their mean values. A simple ideal substance model with spherical molecules was considered as a model of substance molecule. The melting point is 1/3, and the boiling point ranges from 1/2 to 2/3 of the critical point for this model.

This article presents basic methods of areas of polygons on lattices calculating. The authors considered in detail and illustrated with examples the formula of Pick, beyond the scope of the school program.