Nonmatrix varieties of nonassociative algebras

A variety of associative algebras is called nonmatrix if it does not contain the algebra of 2 x 2 matrices over the given field. Nonmatrix varieties were introduced and studied by V.N.Latyshev in relation with the Specht problem. Some characterizations of nonmatrix varieties were obtained in the paper [10]. In the given paper the notion of nonmatrix variety is extended for nonassociative algebras, and the characterization from [10] is generalized for alternative, Jordan, and some other varieties of algebras

About the need for ideology rehabilitation

The article presents a critical analysis of the orientation toward deideologization and justifies the need for the development of the national Russian ideology, the need for a large-scale work on the consolidation of the modern Russian mass political consciousness on the basis of the proper civilizational identityКритикуется установка на деидеологизацию и обосновывается необходимость выработки российской общенациональной идеологии, широкомасштабной работы по консолидации современного российского массового политического сознания на основаниях собственной цивилизационной идентичност

Control of the magnitude and spatial distribution of interference energy flows in near fields of systems of identical radiators

The problem of active control for both the magnitude and spatial distribution of individual components of the interference component of the Poynting vector within the near zone of a system of radiators is studied. The characteristic size of this zone is on the order of the wavelength and is characterized by the presence of evanescent (nonpropagating) fields, which are formed due to the interference interaction of radiators. Using multipole expansions for fields and special summation formulas for such expansions allows one to obtain concise expressions convenient in carrying out numerical calculations. The results of calculations confirm the feasibility of the above-mentioned control in principle in solving problems of medium and object sensing

The role played by evanescent fields in the process of formation of radiation of combined radiating systems

The problem of active controlling of the structure of fields of combined radiating systems within their near zone is studied. The characteristic size of this zone is on the order of the wavelength and is characterized by the presence of evanescent (nonpropagating) fields, which are formed, among other things, due to the interference interaction of radiators of the system. Using multipole expansions for fields and special summation formulas for such expansions allows one to obtain concise expressions convenient in carrying out numerical calculations. The results of calculations confirm that the evanescent fields’ structure plays a significant part in the process of the formation of the radiation field

Amateur tourism in the discipline "Physical culture"

The present work revealed the possibility to submit Amateur tourism in the discipline "Physical culture" as an elective course. Marked social significance of the impact studies of the activity on the degree of involvement of physical culture in the lifestyle of students, their achievement of optimal motor modeВ работе раскрыты возможности представить самодеятельный туризм в рамках дисциплины по выбору «Физическая культура» как элективный курс. Отмечена социальная значимость влияния занятий данным видом деятельности на степень включенности физической культуры в образ жизни студенческой молодежи, достижение ими оптимального двигательного режим

The Tools, Technology and Mathematical Model of Impactive Superficial Plastic Deformation of Metals

The paper shows scientific substantiation and practical confirmation of possibility, application expediency and efficiency of the ultrasonic superficial plastic deformation in zones of welded connections after performance of welding works. For this purpose, a mathematical model to the process of superficial plastic deformation is represented, as the hypercycle of loading consisting of elementary cycles – impacts, we described the standard measurement devices. The technology is intended to use the manufacturing and repair of any metal walls in places of dimensional and structural nonuniformity, such as mechanical defects or a local thinning of a surface owing to corrosion, and the microcracks. The microcracks is influenced by the external forces and become zones of concentration of mechanical tension. Hardening in such places of the pipes walls and tanks working under pressure is effective for pipelines of an oil and gas, water supply systems, and also for caissons and tanks of other appointment. The scopes of technology include the repair of river and sea vessels, objects of oil production. The technology can be applied to improvement of operational characteristics of mechanical engineering and transport details, objects of energetic and construction: surfaces of a rolling motion and sliding of machines and devices, wheels of a rolling stock of railway transport, a metalwork of support of power lines, platforms and bridges for increases in resistance of fatigue at cyclic loadings, wear resistance and corrosion