Volga State University of Technology
Author list of organization
List of articles written by the authors of the organization
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HYDRAULIC DEVICES FOR HYDROSYSTEM TAILRACE PROTECTION
DescriptionBased on the Karman vortex theory, the calculated dependences for velocity induced by profile action in the flow, lifting force and drag force, acting on the profile, are determined. Calculations, performed in MathCAD, allowed, for the given up-stream velocity, to calculate height of mid-section of the bed-formation profile, width of the profile along the chord, span of the profile, angle of attack, velocity of the induced flow. For the calculated profile parameters, the velocity circulation value, drag force and lifting force are determined. As the bed-formation profiles, it is recommended to use flat plates, frame constructions with transverse ribs in the form of arch, fish-like symmetric or slightly curved profiles. Ways of the profile installation in the flow, depending on the angle of attack, are evaluated: three versions - for symmetric profiles, and six versions - for asymmetric profiles. Diagram of the device for the hydrosystem tailrace protection against erosion is developed on the basis of submerged NACA 0302 profile or profile of Zhukovsky, made of flexible materials, including profiles, system of supporting and regulating ropes, and shore or bottom supports. This design is mobile, intended for the periodic regulation of sediment yield
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Description
The article gives an overview of non-invasive method of NMR spectroscopy and the possibility of using this method in the study of cultured under in vitro plant objects on the example of Picea abies
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STUDY OF PLANT FACILITIES IN CULTURE IN VITRO BY NMR RELAXATION
06.00.00 Agricultural sciences
DescriptionThe article gives the overview of the non-invasive method of NMR relaxation and assess the efficiency of using this method in the study of cultured under in vitro plant objects on the example of Rosa hybrida plants
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Description
The article describes the details of modeling of catalytic systems for the production and conversion of energy in anaerobic digestion of organic manure. We have also presented a simulation mathematical model that establishes the relationship between structural and technological parameters of catalytic systems and the parameters characterizing the efficiency of the catalytic system in the production and conversion of thermal energy in the anaerobic treatment of organic manure
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Description
The article presents a simulation mathematical model of technical and technological systems for heating livestock complex, which establishes the relationship between the structural and technological parameters of the technical and technological system and the parameters characterizing the efficiency of their operation in the process of heat transfer at the heat supply of the livestock sector
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SIMULATED MACHINES FOR SOIL TREATMENT FOR FELLING AND SLASH AREAS
DescriptionThe article presents the results of a simulation of functioning machines for tillage in AutoCAD Mechanical environment, the algorithm of machine work and the results of numerical experiments on the developed model
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INERTIAL METHOD OF CHAIN TRANSMISSION QUALITY CONTROL
DescriptionThe article suggests science-based and experimentally tested method of chain transmission quality control. This method enables to estimate the losses due to friction in the transmission chain that directly affect the efficiency of the chain drive. The method can be used both in the chain production stage, as well as in the operation, maintenance, and repair of a chain drive
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INSTITUTIONAL INFRASTRUCTURE: ESSENCE AND CONTENT
DescriptionThe article discusses the concept of "institutional infrastructure" and clarifies its essential content in relation to market cars. In terms of the industry market the main purpose of the institutional infrastructure is achieving the maximum economic benefit within limited resources. The main tasks that need to be solved in order to achieve this goal were formulated. We have developed and proved structurally-logical chart of the elements of the institutional infrastructure. The content of the institutional infrastructure of the car are presented and justified. The analysis condition of the car market’s institutional infrastructure showed the problems associated with the state of institutions which have an impact on the functioning of the car market. Measures to stimulate the car market does not cover entire sector as a whole, and imported institutions do not give the expected effect because of inconsistency formal and informal elements of the institutional infrastructure. Presented assessment of the institutional infrastructure of the car market confirms the dependence of the state of the industry market cars from institutional infrastructure. Only reforming the institutions at all levels of the industry, from production to car sales can have a positive effect on the industry. Changes in the institutional infrastructure should be focused on improving the competitiveness, stability and independence from external factors
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INFRARED HEATERS WITH NON-STATIONARY CATALYTIC FILLER
DescriptionThe article describes currently used catalytic systems, the rationale for improving the design solutions and technical solutions proposed by the authors of infrared heaters with non-stationary catalytic filler
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INFRARED HEATER WITH DIRECTIONAL MOVEMENT OF CATALYTIC FILLER
DescriptionThe article describes the new variants of design of infrared heaters with directional movement of the catalytic filler. We have explained in detail the principle of functioning of the devices and proposed to use infrared heaters within the complex with special materials