Estimation of Temperature Conductivity Coefficient Impact upon Fatigue Damage of Material

In the paper we consider the peculiarities of adhesive wear of cutting tools. Simulation of heat flows in the cutting zone showed that, as thermal conduction and heat conductivity of tool material grow, the heat flows from the front and back surfaces to tool holder will increase and so, the temperature of the contact areas of the tool will lower. When estimating the adhesive wear rate of cemented-carbide tool under the cutting rates corresponding to the cutting temperature of up to 900 °С, it is necessary to take the fatigue character of adhesive wear into consideration. The process of accumulation and development of fatigue damage is associated with micro- and macroplastic flowing of material, which is determined by the processes of initiation, motion, generation, and elimination of line defects - dislocations. Density of dislocations grows with increase of the loading cycles amount and increase of load amplitude. Growth of dislocations density leads to loosening of material, formation of micro- and macrocracks. The heat capacity of material grows as the loosening continues. In the given paper the authors prove theoretically that temperature conductivity coefficient which is associated with heat capacity of material, decreases as fatigue wear grows

Electron energy relaxation under terahertz excitation in (Cd1−xZnx)3As2 Dirac semimetals

We demonstrate that measurements of the photo-electromagnetic effect using terahertz laser radiation provide an argument for the existence of highly conductive surface electron states with a spin texture in Dirac semimetals (Cd₁-xZnx)₃As

The innovative development of the industrial economy of Russia

Building an efficient management system by innovative development of the industrial economy is a priority for many countries. At that the importance of innovative processes for improving the stability of dynamics and the balance of proportions of the reproduction process in the economy increases. The paper contains an analysis of the key indicators of innovative development of the industrial economy of the key areas in which the essential part of Russian industrial assets is centered. The analysis is based on the data of the Russian Statistics Service and includes the indicators of the following sectors: production, economy and innovations. The author proposes to use the indicators of the strategic positioning of Russian companies in assessing innovative development, to take account of the programs of cooperation in the sphere of innovations. The potential and prospects of innovative development will largely be determined by the resource potential and the level of development of human capital in Russian companies

Sustainable urban development: Urban green spaces and water bodies in the city of Kazan, Russia

© MCSER-Mediterranean Center of Social and Educational Research. In recent years social, economic and environmental considerations have led to a reevaluation of the factors that contribute to sustainable urban environments. Increasingly, urban green space is seen as an integral part of cities providing a range of services to both the people and the wildlife living in urban areas. The use of urban green space, and especially increasing the use, has become a hot topic for many green space managers during the past few years as the assumed link between use of urban green space and sustainable urban development is becoming more visible. Up to this time, there is little systematic information about urban green space including natural water bodies in the City of Kazan, Russia, its use and the main factors that influence this use. As green spaces play a crucial role in supporting urban ecological and social systems, it is important to make investigations in the amount of provision, the distribution and characteristics of urban green space in the city. The main concern of this paper is to address the importance of urban nature for citizens’ well being and for the sustainability of the city they inhabit

The multipliers of periodic points in one-dimensional dynamics

It will be shown that the smooth conjugacy class of an $S-$unimodal map which does not have a periodic attractor neither a Cantor attractor is determined by the multipliers of the periodic orbits. This generalizes a result by M.Shub and D.Sullivan for smooth expanding maps of the circle

The feature of scientific explanation in the teaching of chemistry in the environment of new information of school students’ developmental education

© 2016 by iSER, International Society of Educational Research.The aim of this article is to disclose features of scientific explanation in teaching of chemistry in the environment of new information of school students’ developmental education. The leading approach to the study of this problem is the information and environmental approach that comprehensively address the problem of scientific explanation in the teaching of chemistry, to identify its characteristics and its role in the didactic system of developing training. In the article the concept of "informational-educational environment" and "personal information culture", identified the main function as the primary explanation of the procedure of scientific thinking in the teaching of chemistry. The features of scientific explanation in teaching chemistry in the new educational environment due to six types of relationships induction and deduction in explaining chemical phenomena, theories and laws. The choice of the ratio of induction and deduction affect the chemical nature of the studied object, the problem of knowing the object, the logical links between the structure of the object and the structure used to explain knowledge. It was found that the role of scientific explanation in the didactic system of developing education in the new information environment is the development of students forming their scientific outlook, logical thinking and culture of information activities

Instrumental research method of qualitative composition of landfill gas in the surface layer of landfills

© Published under licence by IOP Publishing Ltd. The article analyzes the practice of waste management in Russia. The system of target indicators of the efficient landfills functioning is formalized. The method of instrumental analysis of concentration and qualitative composition of landfill gas in the surface layer of the Samosyrovo landfill is presented

Bioinformatic Analysis of Immunodominant Peptides of Rabies Virus (<i>Rabies lyssavirus, Rhabdoviridae</i>)

There is a need to develop a new generation of anti-rabies vaccines that provide a protective level of antibodies after a single injection. Prospects for solving this problem are opened by the latest developments in the field of “reverse vaccinology”. The main parameter that determines the effectiveness of recombinant vaccines is the design of the antigen-coding sequence. In this regard, the aim of the work was to conduct a bioinformatic analysis of rabies virus (Rabies lyssavirus, Rhabdoviridae) peptides to identify immunogenic epitopes.Materials and methods. Analysis of 5 candidate protein sequences of more than 100 strains and epizootic isolates of the rabies virus was performed using standard in silico prediction methods using Immune Epitope Database (IEDB) (NIH, USA).Results and discussion. As a result of the analysis of primary amino acid sequences, carried out using the most commonly used bioinformatics tools, the number of immunogenic epitopes and the types of immune response detected (T- and B-cell epitopes, class I MHCbinding epitopes) were established for viral proteins: glycoprotein (G), nucleoprotein (N), phosphoprotein (P), matrix protein (M), RNA-dependent RNA polymerase (L). In the amino acid structure of these proteins, N- and O-glycosylation sites, signal peptides, and transmembrane domains were additionally identified. In order to predict the safety and efficacy of these proteins as components of recombinant vaccines, an in silico assessment of their physicochemical properties was carried out. Despite the fact that the predominant number of epitopes is concentrated in the structure of the glycoprotein, the epitopes of other proteins, ranging according to the level of antigenicity and conservatism, may also be of interest as components of preventive drugs or diagnostics. The presented data can be used in the design of the insert during the construction of a candidate virus-vector vaccine or control positive samples in diagnostic methods based on the indication of viral genome fragments

Dipole moments of organophosphorus compounds - Communication 2. Benzoylphosphonates, benzoylphosphinates, and benzoylphosphine oxides

1. Diethyl esters of certain substituted benzoylphosphonic acids and diethyl(diphenyl)benzoylphosphine oxides were synthesized, and their dipole moments were determined. 2. The steric structure of the investigated compounds was established. 3. Interaction of the substituents in the benzene ring of diethyl esters of benzoylphosphonic acids with the diethoxyphosphono group was detected. © 1971 Consultants Bureau

Landfill energy complex based on the renewable energy installations

The article presents the analysis of standard approaches to degassing of landfills. The need of comprehensive work on the degassing of the landfill body is identified. The author's task decomposition of the landfill degassing is formulated. The analysis of existing methods of work on degassing of landfills is presented. The author's approach is including implements of series of parallel studies in the framework of achieving a common goal to reduce the anthropogenic pressure on the ecosystem of the region due to the need for disposal of solid waste. An action plan for the development of the target problem-oriented management techniques of the landfill with the following development of the effective energy complex is formulated