01.00.00 Physical-mathematical sciences
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THEORY OF TURBULENCE AND SIMULATION OF TURBULENT TRANSPORT IN THE ATMOSPHERE PART 6
01.00.00 Physical-mathematical sciences
DescriptionThe model of continuous transition from the laminar flow to the turbulent flow is proposed and the theory of the spectral density of turbulent pulsation is given
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TURBULENCE THEORY AND ROUGHNESS DENSITY EFFECT MODEL
01.00.00 Physical-mathematical sciences
DescriptionThe model of the turbulent boundary layer over a rough surface is presented. The model is based on the special type of transformation of the Navier-Stokes equation. The turbulent boundary layer in this model is considered as a flow above the rough surface gener-ated by the viscous sublayer (the dynamic roughness effect). The roughness density effect on the shift of the mean velocity logarithmic profile has been estimated in the case of 2D and 3D roughness elements
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THEORY OF PHYSICAL CONSTANTS AND SUPERGRAVITY IN 112D
01.00.00 Physical-mathematical sciences
DescriptionIn this article we discuss a version of the metric theory of the fundamental interactions in which it is assumed that the physical constants due to the presence of extra dimensions of space-time. The estimation of the number of physical constants based on the theory of supergravity in 112D is that the minimum number of constants is equal to 222, and the maximum number - 1404928. At present, the number of parameters that characterize the elementary particles, isotopes and chemical elements is about 150920. This number is 9.3 less than the maximum possible number of parameters that indicate still great potential of modern science. Functions describing the area and volume of a unit hypersphere, embedded in a Riemannian space of arbitrary dimension, were used to find the fundamental physical constants. A satisfactory agreement with a relative error of 0.03% calculated and experimental values of the fine structure constant found out. For the ratio of the average mass of a nucleon to the electron mass is obtained coincidence with the experimental value with an accuracy of 0.002%. The proposed theory of physical constants different from that Bartini theory that established the optimal dimension of the space is a hypersphere 5 and 7, rather than 6 as in Bartini theory. The problems of the compactification of extra dimensions in describing the motion in fourdimensional space-time are discussed
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THEORY OF EXPERT ESTIMATES IN OUR COUNTRY
01.00.00 Physical-mathematical sciences
DescriptionIs given the analysis of the development of expert estimates in our country after the war. Are presented a diversity of expert technologies, the main ideas and publications that help identify the driving forces of development in this promising scientific and practical field
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Warm, warmth and internal energy of a body
01.00.00 Physical-mathematical sciences
DescriptionThe article discusses the question of the concepts of heat and internal energy of a body. The analysis of these concepts in the historical aspect and the views of the author, based on the new photon theory of atomic structure were presented in this study. The analysis of the historical aspect of this question tells that the concepts of heat and internal energy of the body for a long time were associated with the concept of caloric, which can flow in the substance. The next step was the identification of the concept of heat with energy linked with the movement and work. In accordance with this, Clausius proved the equivalence of heat and work as the first principle of the theory of heat and introduced the concept of internal energy, which can be increased in two ways - making work on body, and summing heat to it. Thus, energy was the main uniting factor of work and heat. Then, the kinetic theory of heat, as the energy of motion of molecules, was developed by Maxwell and caloric model turned out to be a hindrance in the development of the theory of heat. In fact, the internal energy of the body is determined photons, rotating around charged particles in atoms in their orbitals. The series of photons are combined into a single photon orbital direction of rotation of the photons, which are different from each other. Thus, the body has an internal energy or internal heat. It is due to the energy of photons, orbiting electrons in the outer shell of each atom, as well as around the charged particles - electrons and protons in the nucleus of an atom. This internal energy may be increased by mechanical action on the body, leading to an increase in resulting oscillation frequency of photons around charged particles of atoms and the internal heat contained in the body can flow of the body with a higher concentration of heat to the body with a lower concentration of heat
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01.00.00 Physical-mathematical sciences
DescriptionIn this article, a model of preons electric currents caused by the motion of preons in the electron shells and nuclear shells is proposed. It is assumed that preons currents may contribute to the conductivity of the material than, for example, due to different sign of the charge carriers to be determined by the Hall effect. It is shown that in metals and semiconductors, nuclear reactions can occur with rapid interruption of the current. An explanation of the known results on the transmutation of elements obtained in the explosion current-carrying conductors
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PREONS CURRENTS AND WIRELESS POWER TRANSFER
01.00.00 Physical-mathematical sciences
DescriptionIn this article, a model of preons electric currents caused by the motion of preons in the electron shells and nuclear shells is proposed. It is assumed that preons currents may contribute to the conductivity of the material. A closed model of electrodynamics, which describes the diffusion of the vector potential due to the contribution to the conductivity of preons currents, is formulated. An analogy of hydrodynamics and electrodynamics of continuous media with preons currents is considered. A model of the wireless transmission of electricity is proposed
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THE GROWTH POINTS OF STATISTICAL METHODS
01.00.00 Physical-mathematical sciences
DescriptionOn the basis of a new paradigm of applied mathematical statistics, data analysis and economic-mathematical methods are identified; we have also discussed five topical areas in which modern applied statistics is developing as well as the other statistical methods, i.e. five "growth points" – nonparametric statistics, robustness, computer-statistical methods, statistics of interval data, statistics of non-numeric data
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MANAGEMENT OF THE FINANCIAL AND THE ECONOMIC STATE OF A COMPANY USING A MATHEMATICAL MODEL
01.00.00 Physical-mathematical sciences
DescriptionThis article focuses on the mathematical modeling of evaluation of financial and economic activities of a company and on definition (based on this model) of such balance settings (line F1 and F2) which would make financial-economic indicators of the activities of the organization optimal, and the total cumulative score was the maximum. The knowledge and the use of the optimal parameters of the balance will allow the managers to plan strategy for the future development of the company. The article analyzes the dependencies of each of the 15 basic indicators (profitability, turnover, financial stability, liquidity and solvency) of financial and economic activity of the organization on the balance parameters. The optimal values of the parameters of the balance and the main indicators of financial and economic activities of the organization have been found. We have also built a mathematical model of optimal control of financial and economic indicators in the form of a problem of mathematical programming. For example, for the company called "Nika" it is shown the possibility of improving estimation of financial and economic condition of the organization. Knowledge of the optimal parameters of the balance will allow the managers to plan strategy for the future development of the organization. To solve this problem we have used the method of generalized reduced gradient implemented in Excel, with which there was found a maximum of the objective function for the article restrictions. The article describes the analysis algorithm of the optimization problem. A common assessment was carried out in stages, based on the calculation algorithm of sequentially improved target functions
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01.00.00 Physical-mathematical sciences
DescriptionThe drawbacks of the existing ontology languages and problems of their practical application are discussed in this paper. The requirements for the process of ontologies creating are laid down. A simplified method of constructing the ontological domain model on the basis of the original language SXML is proposed