Nonlinear mean-field dynamo and prediction of solar activity

We apply a nonlinear mean-field dynamo model which includes a budget equation for the dynamics of Wolf numbers to predict solar activity. This dynamo model takes into account the algebraic and dynamic nonlinearities of the alpha effect, where the equation for the dynamic nonlinearity is derived from the conservation law for the magnetic helicity. The budget equation for the evolution of the Wolf number is based on a formation mechanism of sunspots related to the negative effective magnetic pressure instability. This instability redistributes the magnetic flux produced by the mean-field dynamo. To predict solar activity on the time scale of one month we use a method based on a combination of the numerical solution of the nonlinear mean-field dynamo equations and the artificial neural network. A comparison of the results of the prediction of the solar activity with the observed Wolf numbers demonstrates a good agreement between the forecast and observations.Comment: 15 pages, 6 figures, jpp.cls, final versio

INFLUENCE OF QUALITY OF THE GOODS ON SATISFACTIONS OF CONSUMERS

In process of work the problems are set and solved. There are problems of social welfare research inconditions of nonhomogeneity of objects and subjects of management, of revealing and substantiating insuperabledifficulties in rising of social welfare by approaches, worked out before. Also there developed a new directionin implementation of the most important aim of any socially-oriented econom

The dynamics of Wolf numbers based on nonlinear dynamo with magnetic helicity: comparisons with observations

We investigate the dynamics of solar activity using a nonlinear one-dimensional dynamo model and a phenomenological equation for the evolution of Wolf numbers. This system of equations is solved numerically. We take into account the algebraic and dynamic nonlinearities of the alpha effect. The dynamic nonlinearity is related to the evolution of a small-scale magnetic helicity, and it leads to a complicated behavior of solar activity. The evolution equation for the Wolf number is based on a mechanism of formation of magnetic spots as a result of the negative effective magnetic pressure instability (NEMPI). This phenomenon was predicted 25 years ago and has been investigated intensively in recent years through direct numerical simulations and mean-field simulations. The evolution equation for the Wolf number includes the production and decay of sunspots. Comparison between the results of numerical simulations and observational data of Wolf numbers shows a 70 % correlation over all intervals of observation (about 270 years). We determine the dependence of the maximum value of the Wolf number versus the period of the cycle and the asymmetry of the solar cycles versus the amplitude of the cycle. These dependencies are in good agreement with observations.Comment: 9 pages, 13 figures, final revised paper for MNRA

Static and dynamic models in economics

© Published under licence by IOP Publishing Ltd. In this article, the authors consider the impact of information and advertising on consumer behavior and the process of producing differentiation formation. Advertising, television, radio, magazines and direct mail as major constraints of mass media may act as sources of information. Economic modernization is aimed at development of acceleration of the knowledge intensive industries, which contribute to Russia's position in terms of the world economy; the recovering process of the Russian economic manufacturing base; development of import substitution industries and limited participation in international labor specialization

Demand and utility: New methodology

© 2014, Canadian Center of Science and Education. All rights reserved. In paper consider the impact of information and advertising on consumer behavior and the process of productive differentiation formation. Advertising, television, radio, magazines and direct mail as major constraints of mass media may act as sources of information. Economics modernization aimed at accelerated development of the knowledge intensive industries, which contribute to Russia’s entrance at the world economy; the reset of manufacturing base of Russian economics; development of import substitution industries and limited participation in international labor specialization

Data Assimilation of sun activity for the model based on negative effective magnetic pressure instability effect

In this paper the data assimilation scheme was built and implemented, based on a new model of sun activity with observation vector of Wolf sunspot numbers. This data assimilation allows to validate a new model, to estimate and update initial state and conditions of model, and to correct the monthly sun activity forecasting. Also, this data assimilation technique has its own advantages and disadvantages, thus, giving us a lot of better understanding of a new model for future researchВ работе обоснована методика применения технологии Data Assimilation для прогнозирования временного ряда (ВР), содержащего значения чисел Вольфа, на основе новой модели солнечной активности, и ее программная реализация. Данная методика обеспечивает: валидацию модели прогнозируемого ВР; обоснованный выбор и, при необходимости, корректировку начальных условий и параметров модели; выдачу месячного прогноза солнечной активности, согласующегося с наблюдаемыми данными. Описаны преимущества и недостатки выбранной методики, которые буду положены в основу дальнейших разработок в этом направлении

Consumer behavior and qualitative selection of goods

© Medwell Journals, 2017. The study presents theoretical-methodological approach to the content of consumer behavior taking into account quality of goods that allowed to formulate practical recommendations concerning methods of its regulation in conditions of modern Russian economy. It offers methodical approach to determination of quality as basic factor of consumer behavior based on assessment of integrated criterion of quality as the radius vector of the n-dimensional space characterizing set of uniform characteristics of quality for various categories of a product consumers, work or service number of measurements of which is defined by the structure of consumer community for this product on the basis of which the vector of consumer usefulness of production by criterion of quality is formed

Distribution and product selection under uncertainty

In work are investigated questions of interrelation of quality and demand and are considered concepts, which limiting utility, quality and demand. In work are investigated questions of interrelation of quality and demand and are considered concepts, which limiting utility, quality and demand. This task is connected with economic alternatives which arise in any economic decision making process, in particular, because of the need of increase of return from scale for producers or increase of total utility for consumers - for growth of public welfare. © 2014 Taylor & Francis Group

The Correlation of the Consumer Utility, Product Demand and Grade

In paper consider the impact of information and advertising on consumer behaviour and theprocess of productive differentiation formation. Advertising, television, radio, magazines and direct mail asmajor constraints of mass media may act as sources of information. Economics modernization aimed ataccelerated development of the knowledge intensive industries, which contribute to Russia's entrance at theworld economy; the reset of manufacturing base of Russian economics; development of import substitutionindustries and limited participation in international labor specialisation. © 2013 IDOSI Publications

The Development of welfare theory in conditions of changes in the quality of goods and services

In work on the basis of revealing of interconnection between theories of welfare and markets of imperfect competition, by quality non-homogeneity of goods and services, consumers and producers there determines the influence of public welfare on mechanisms of imperfect competition market and their adverse effect on public welfare which includes stimulation of demand and growth of welfare on the basis of rising level of quality of produced and consumed goods and services. © IDOSI Publications, 2012