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  • ACTORS OF SUSTAINABLE DEVELOPMENT HOUSING STOCK LARGE CITIES

    The authors considers the sustainable development of the housing stock of a large city from the perspective of four factors: the energy efficiency of buildings under construction and reconstruction; capital repairs of apartment buildings, taking into account their energy requirements; the choice between the building and reconstruction on the criterion of resource costs; management of housing resources on the basis of the requirements of a comfortable stay of owners and improving the quality of exerting-proxy services in the housing sector. According to the authors, for the sustainable development of housing is necessary to apply energy saving modern building materials, products and structures and assess the life cycle of buildings in the choice of organizational and technical decisions on the demolition or renovation of buildings.

    Keywords: Sustainable development, energy-efficient buildings, big city, building, construction, reconstruction

  • Solution of problem of automating the fruits and vegetables harvesting

    The article actualizes the issue of increasing farm labor efficiency through automation and the introduction of robotics. The study found that farms of various types have a need to automate the process of harvesting the crop, which determined further directions of analysis. The authors presented the overlook of the current state of the market of agricultural robots and identified its key players. Suggested the solution to automate the process of harvesting fruits and vegetables by the family of AgroMultiBot robots.

    Keywords: agriculture, robotics and automation of agricultural production; productivity, competition (competitors), family of AgroMultiBot robots

  • Features of social-economic systems' transformation in conditions of economy of intelligence

    The main global trend of formation of modern society becomes a transition to the so-called "intelligence economy" based on intellectual resources, high-tech and information technology. "The economy of intelligence" - is not just intra-changes due to the emergence of new industries related to the dominance of intellectual capital and information and communication technologies. It reflects a system-wide change, at which qualitative changes affecting the structure and all levels of the social system, accompanied by a change of technological structure, social and political organization. In this regard, a growing need for research and generalization of experience of the leading countries that have achieved the greatest results in the development and implementation of effective public policy innovation, as well as to identify opportunities and limits of its use in the formation of Russia's long-term innovation policy.

    Keywords: economy intelligence; the new economy; the socio-economic system transformation; economic and social relations; technology, management; intelligent control systems; the labor market; the new technological order; robotics; innovation; human capital

  • High-temperature fibroarmirovannye composites on the basis of the volcanic pumice

    Are represented the results of studies on the development of the high-temperature (oxidation-resistant) fibroarmirovannykh composites with the application of volcanic pumice. The application of basaltic fibers in the composites makes it possible to increase strength, high-temperature (oxidation-resistant) properties of composite and to decrease shrinkage strain. Are revealed optimum percentage reinforcements by the volume by the fibres of concrete matrix and the relationship of fiber length to the diameter with the application of a method of the mathematical planning of experiment. The mathematical models of the strength properties of the composite are obtained

    Keywords: portland cement, volcanic pumice, basaltic fiber, high-temperature (oxidation-resistant) properties, limit, compression strength and bend of the composite

  • The method of reducing the thermal resistance of immersion cooling system of supercomputer

    Low heat transfer coefficient per unit area is main disadvantage of immersion cooling system. In the theoretical part of the study the main issue was to evaluate the influence of various factors on the convective heat transfer between the solid-liquid interface. The result of this part of study was conclusion that the type of fluid flow in the area of heat transfer is key factor of increase heat convective heat transfer of thermal contact. The Reynolds number is main characteristic of turbulence of fluid flow. Therefore in the experimental part describes study of the effect of the degree of turbulence of the fluid flow at the place of the thermal contact on thermal resistance of immersion cooling system. The design of experimental setup and its main parts is describe further. The result of the experiment is graphic of experimental curve of the thermal resistance of immersion cooling system from the Reynolds number of fluid flow of thermal contact between the solid-liquid interface. The study showed the possibility of local reduction of the thermal resistance of immersion cooling systems to maintain the quality of the thermal management of computing elements that emit significant heat. The results of the study is define the ranges of values of the Reynolds number of cooling system that allows the technical realization at the current dimensions of packages and sizes of microchips sockets.

    Keywords: microchip, heat flow, cooling system, Laplace's equation, turbulent flow, Reynolds number, heat transfer, thermal resistance, electrothermal analogy, thermal protection

  • Study the possibility of using electrostatic treatment in the processing of ripe tomatoes

    The use of physical and chemical methods of processing in the food industry substantiates the possibility increasing resource efficiency of production. According to the research it was proposed and justified the use of electrostatic processing of ripe tomatoes, identified possible applications of electrostatic treatment of water and air environments.

    Keywords: electrostatic field, processing of fruit and vegetables, tomato, installing with electrostatic processing unit, storage

  • Using physical and chemical methods of treatment in order to prolong shelf life, improve the quality and food safety control

    The article presents review of the scientific and technical literature in the field of application of physical and chemical treatment methods to produce food products with improved consumer properties, continuing for a long time. The methods presented are among the key in the food industry and are actively used to create the nutritional industry.

    Keywords: electrostatic treatment, electrochemical activation of solutions, freeze drying, improving the product quality, increase shelf life, control, quality, safety

  • Analysis of the causes of the destruction of the supports of the bridge during the construction of the access road to the compressor station "Baydaratskaya"

    The analysis of the gap pile Foundation of the bridge during construction the compressor station "Baydaratskaya" on the Yamal Peninsula, applying the technology of construction in the far North region, identified the cause of the destruction of pile Foundation (pile-rack). The analysis of deformation has been proven the urgency of the problem of deformation and destruction of the bridge piers on the border "water-air" in different traffic and climatic zones of Russia, including in the far North. Based on a practical analysis of the problem of the destruction we can draw the following important conclusions: - The destruction the bridge piers, piles in the area of "water-air", because of intense deformation and the requires external sources of protection. - Further study zone "water-air" is true in our time, and existing protection methods are not able to protect the structure from damage. - necessary practical research to identify ways to protect bridge piers in the area of "water-air". - necessary to control the state of the bridge's pillars after the construction of protective structures above the water level

    Keywords: bearing bridge, metal pile, permafrost, concrete, load and impact, thermal deformation, stress-strain state, welding, welds

  • Study the possibility of using electrostatic treatment to intensify the processes of convective drying

    Convective drying is the most common method of dryingthat may be intensified by the treatment of root crops and vegetables in an electrostatic field. According to the results of the experiments was to determine the optimum treatment time 3-3.5 hours at 55 C, with tension in the range of 20-40 kW / m. Under the influence of the electrostatic processing of hygroscopic moisture removal rate is accelerated. Organoleptic performance compared with conventional convection drying are not changed.

    Keywords: electrostatic field processing and drying horticultural crops, loss of moisture, unit of drying with the electrostatic processing, carrot, onion, beetroot

  • Algoritm resheniya obratnoy zadachi raspredeleniya neodnorodnykh resursov

    The problem of optimal allocation of resources - one of the basic optimization problems to be solved in the design of complex systems, determining their structure and methods of operation, so this work is considered one of difference methods for solving inverse problems of non-uniform distribution of resources. The inverse problem of non-uniform distribution of resources formulated as follows. It is necessary to choose the amount of funds the option to specify distribution of units served by the product and to offer such means of their actions to a given level of performance means performing the task was achieved with the minimum of expense. The most common methods for solving inverse problems, various modifications of the method of random search, dynamic programming method. However, the use of these methods in some cases, particularly for large-scale problems, is not effective. Optimal elements, which turned into a row or column assigned to an optimal element from further consideration at this stage of the distribution, the process eliminated to provide an optimal plan of resource allocation in construction.

    Keywords: аlgoritm, plan, resursy, edinitsy, metod naimen'shikh otkloneniy, podnadzornye resursy, raspredeleniya, printsip naimen'shego otkloneniya, matritsa, optimal'nyy element, veroyatnost', indeksy.

  • Investigation of ultrasonic treatment influence on stearylamine floccules dispersion in aminobutyric emulsion

    The article presents the investigation of ultrasonic treatment influence on the size of the stearylamine floccules in the aminobutyric emulsion and on the stability of received emulsions. It was found that the amine floccules in the original aminobutyric emulsion have a bimodal size distribution with small particles predominantly 900 nm and large particles with size of 5500 nm or more. It was identified that ultrasonic treatment leads to decrease the stearylamine floccules size in 13-25 times, dimensions of obtained floccules are between 35 and 220 nm. The dynamics of size changes of stearylamine floccules was studied. The stearylamine floccules were obtained in aminobutyric emulsions after the ultrasonic treatment with an intensity of 15-30 W/cm2. It was found that after ultrasonic dispersion the process of amine floccules agglomeration takes place, the duration of this effect depends on the intensity of treatment.

    Keywords: ultrasonic treatment, aminobutyric emulsion, stearylamine floccules, floccules dimensions, emulsion stability

  • Research of devices of registration of ionic current in the combustion chamber

    In article the comparative analysis of various versions of circuitry solutions of realization of devices of registration of ionic current, is made, theoretical justification of almost known advantages and shortcomings of the considered devices. In article are given the experimental data obtained at registration of a signal of ionic current by various devices. Is made processing of oscillograms and shown qualitative advantage of the device of registration of ionic current with the stabilized boost converter for the solution of problems of registration of a signal of ionic current with increased requirements to quality of a signal.

    Keywords: internal combustion engine, signal of ionic current, energy, spark discharge, device of registration

  • By definition, the nominal size of a real particle discrete loose body

    In the article the problem of determining the nominal size of real particles of grain materials, which significantly affect the technological parameters of the hoppers and their design parameters. Are specific correction factors for sredenegeometricheskogo razsmera nektoryh ubiquitous forms particles loose body.

    Keywords: Bunker, nominal diameter, bulk body shape factor of particles geometric average particle size

  • Analytical determination of the shape of the gap forming hopper with vertical end walls greatest capacity grain bulk materials /RETRACTED 25.07.2019/

    This article provides an analytical solution to determine the forming wall slot hopper highest possible throughput with vertical end stenkmi among all bins have the same inlet and outlet openings. These bins are designed for hydraulic type expiration of the bulk material. They are evenly distributed granular body as it exits from the outlet and reduce the degree of influence on the flow characteristics of the vaults of the hopper.

    Keywords: bunker, loose body, bunker form, friction, outlets, bunker expense.

  • Calibration of the linear element of piezoceramic pressure transducers in the blasting chamber by a drop weight method

    The article focuses on the brief analysis of existing measuring devices of parameters of shock-wave processes include, in particular, electrical discharge in condensed medium. Conversion coefficients for calculation of amplitude of pressure of a shock-acoustic wave were found by means of mathematical modeling of the physical process happening in the piezoceramic pressure transducer when pulse mechanical loading influences on it on the assumption of absolute sharp border. The results of the calibration of the linear module of piezoceramic pressure transducers in the transmission condensed medium in the blasting chamber using a drop weight method are described.

    Keywords: pulsed electric discharge, electric explosion of conductor, calibration of piezoceramic pressure transducer, a drop weight method