Volga State University of Technology
Author list of organization
List of articles written by the authors of the organization
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THE USE OF JUVENILE WOOD WITH REGARD TO ITS PHYSICAL AND MECHANICAL PROPERTIES
DescriptionThe article presents possible ways of using the juvenile wood in wooden structures with taking into account the experimental research of its physical and mechanical properties. Experimental research aimed at defining the possibility of its use in construction materials
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Description
The object of the article is to consider the surrounding factors of city passenger motor transport of the municipal union «City of Magadan» and to estimate the degree of their influence to municipal transport infrastructure by means of the PEST-analysis, SWOT-analysis, a method of pair linear correlation, and a method of profile city surroundings. As a result of this analysis, the basic directions of the strategy of city passenger motor transport development are defined, some recommendations improvement of management efficiency by public transport from the institutions of local government are made
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STUDY OF RESOURCE CONSERVATION AT DESIGNING LEVER MECHANISMS
DescriptionThe article presents the original study material designed to determine the effect of individual parameters on the performance linkage resource efficiency. These data allow us to determine the efficiency changes in metals construction at the given constraints
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RESEARCH OF LOADING LEVEL OF A DRIVING MECHANISM OF FELLING HEAD
DescriptionThe article presents the description of the method and the results of the experimental research of loading of driving mechanism of felling head of a forest machine
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THE RESEARCH OF PARAMETERS OF WOODEN CHIP COLORING
DescriptionThis work presents main kinds of colourants and methods of painting wood particles. Based on wood structure analysis, it was revealed that hard wood, possessing tracheides and vessels as conducting elements, have the optimal capacity for coloration, in comparison with coniferous trees. A methodology was developed of cloning wooden particles, in the form of chips, with forced immersion in order to obtain established parameters of saturation and brightness. The experiments were conducted with chips of 15-50 mm long, 5-20 mm wide and 3-7 mm thick. The composition of colouring agent included water, acetic acid, and water-emulsion colourants of different types and colours (№1 – colour code (red, yellow, and brown) №2 – colorant (lilac and orange) and №3 – paint). Experience has shown the needed concentration of liquors and mass percentage of compounding ingredients. The research was undertaken to study concentration dependence on the time of allowance and saturation. In consequence of colouring experimental batches of chips, a painting saturation of 4-9 points was obtained at the allowance of 120 and 140 seconds. Dependence of brightness from solubility was determined, with high correlation between given parameters on Pearson Criteria (more than 0.9). Comparative analysis made it possible to discover that the better colouring of particles is created with the red paint. In this case maximum colouring effect is achieved with liquor of water-emulsion paint. Subsequent to the experimental results, a design of installation for colouring wooden particles was developed and patented
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ANTHROPOGENIC DISTURBANCE RESEARCH OF NATURAL ENVIRONMENT IN THE CONDITIONS OF SANDPITS
06.00.00 Agricultural sciences
DescriptionIn this article, an anthropogenic influence on natural ecosystem such as an excavation of sand is discussed. Investigations were done in Kuyar Forest District of the Mari El Republic on a sandpit. The adjacent plot of natural forest was taken as a control. For evaluation the degree of environment transformation as a result of sand excavation several indicators were used. As indicators of physical soil degradation - thickness of organogenic horizon and soil density; for assessment a chemical degradation – content of main nutrients and humus; as an indicator of biological degradation – the level of active microbial biomass. Besides, a potential phytotoxicity was estimated. The study proved: physical and chemical parameters corresponded with the fourth degree of soil degradation, at the same time, biological parameters approximated to parameters of soil from natural territory
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TO THE PROBLEM OF EFFICIENT MANAGEMENT OF MUNICIPAL PROPERTY
DescriptionThe experiences of highly-developed countries show that the problem of inefficient management can be completely solved by delegating the powers in respect of water supply and waste water management to the private sector. Considering advantages of a concession as a form of public-private partnership, it can be supposed that implementation of a concession agreement will lead to resolution of most of the problems mentioned above
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CATALYTIC COMBUSTION SYSTEM FOR INTENSIVE TECHNOLOGY OF BIOGAS PRODUCTION
DescriptionThis article substantiates structured catalytic systems for conversion of biogas energy to heat. The study of the elements of catalytic systems, used in intensive technology of biogas production has been presented
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Description
The article presents the description of the models of catalytic combustion systems, bioreactor for anaerobic digestion of organic waste and the research stand developed by the authors, which are the elements of the experimental sample of catalytic systems for the production and transformation of energy and allow us to study features of functioning of the catalyst systems in the anaerobic treatment of organic waste
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Description
The article assesses the energy efficiency of the technical and technological systems based on catalytic combustion systems nutrient liquid and gaseous fuels for heating various production facilities and agro-forestry systems