Showing 4817–4830 of 4,998 results for "A. Vasiliev"

Journals 2016 EN

Ecological Aspects of Petroleum Industry

Sergey I. Vasiliev · Lyubov A. Lapushova

The paper analyzes the consequences of oil and petrol products pollution, provides the classification by level of contamination, and proves insufficiency of the classification used for Eastern Siberia grounds. The article suggests the ways to improve the classification in additional gradation of low and medium contamination level taking into consideration the altitude position of the ground, condition and thickness of moist layer, humus, mineral layer, composition of parent materials.

Siberian Federal University
Journals 2016 EN

Special aspects of initial optical scheme selection for design of non-imaging optical systems

Roman V. Anitropov · P. Benitez · V. N. Vasiliev +4 more

Subject of Research. The research results, structural composition analysis and the parametric synthesis of the projected imaging and non-imaging optical systems were presented. We made an attempt to use the gained experience about imaging systems while designing non-imaging systems, by adapting the composition theory for the calculations of non-imaging systems. Several patterns were revealed, which provide a deeper understanding of the design process of non-imaging optical systems; measures of its optimization were proposed. Method. We investigated the applicability of the theory of composition and synthesis of non-imaging optical systems. The main provisions of the theory of composition are based on the division of all available optical elements in four types depending on their functionality, which corresponds to a modular design. Similar items were identified in non-imaging optical systems and adaptation of composition theory to their design became possible. Main Results. General design patterns of imaging and non-imaging optical systems were studied. Classification of systems, components, as well as technical and generic characteristics of imaging and non-imaging optical systems was determined. Search mechanism of the initial optical system by means of structural and parametric synthesis of non-imaging optical system was formalized. The basic elements were determined included in non-imaging systems and their classification by functionality was done. They were subdivided into basic, corrective, wide angle and high aperture ones. The rules for formation of these elements and their composition were determined: surface reflecting, refracting, spherical and nonspherical elements with total internal reflection. The foundations of composition theory for non-imaging optical systems were laid. The approbation of this method was carried out on the example of the illumination system calculation for surgical room. A 3D model of an illumination optical system for surgical room was obtained, consisting of three identical domes. The illuminator designed with the use of the proposed methodology showed high energy efficiency (92.3%). Practical Relevance. The results can find application in optical design of non-imaging systems having various functionality, for example, illuminators, concentrators, etc. and can provide import substitution of similar foreign devices. The results can be useful by engineers specializing in the design and/or operation of non-imaging optical systems.

Saint Petersburg State University of Information Technologies
Journals 2016 EN

The Dynamics of Educational Activity’s Motives and its Connection with the System of Educational Actions

V.G. Vasiliev · Michael Tretyak

The young school age is characterized by primary entry of the child into educational activity, mastering main types of educational actions. However, educational activity is not given to a child in a finished form, it has to be formed. One of the main conclusions of the theory of educational activities by Davydov is that the informative requirement which is the cornerstone of educational activity is formed in this activity. This dialectic contradiction defines a common problem of this work - the problem of formation of motives of educational activity. In particular, the dynamic structure of educational motives, where each motive, on the one hand, lies in the basis of specific educational action, and, on the other hand, it is formed by specific educational actions. The research of such communication of educational motivation with the system of educational actions allows teachers to get closer to the understanding of driving forces, the reasons, internal mechanisms of behavior of a child in educational activity. This allows teachers to understand the process of designing and organization of educational activity. This work was supported by financial support from Medical University Moscow State Pedagogical University in the framework of scholarships named after V.V. Davydova

Moscow State University of Psychology and Education
Journals 2016 EN

New trends in the modern understanding of economical relations regulation by economical and legal laws

A V Vasiliev

There are issues of economical relations regulation by economical and legal laws examined in the article. Economical laws are the main. The legal one must agree with it. Otherwise there are problems and economical recessions emerging in the economy. There are some proposals on non-admission of these negative developments formulated.

ECO-vector