bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solving Air Conditioning Problems in a Design Project Using Energy-Efficient Daylighting Systems Based on Hollow Tubular Light Guides
Authors: Pleshkov S , Bracale G , Ibragimov I , Vedishcheva I 
Published: March 2020

Abstract
In our work we demonstrate a developed design project for lighting a 24-hour cafe at one of the largest airports in Russia. The project is based on use of energy-efficient technology for delivering natural light to rooms with constant presence of people. The existing option includes only minor artificial lighting. Employees and passengers who, for various reasons, have to stay in the terminal cafe for a long time, experience certain discomfort and fatigue for lack of natural light and continuous air conditioning in summer time. The proposed design project allows not only to radically change the interior atmosphere of the cafe due to natural sunlight and diffuse light, but also significantly save energy costs associated with continuous round-the-clock energy consuming artificial lighting and air conditioning in summer, contribute to improving the psychological comfort of people and preserving the natural environment. This statement is confirmed in this article below by the heat engineering calculation performed in Ansys calculation complex. There are no analogues to this project. Illumination calculations were performed in improved DIALux program, into which the relevant information on the applied daylighting systems was integrated. The calculation of the economic profitability of the design project confirms feasibility of material costs.
Changes of the Energy Intensity of Destruction of Autoclaved Aerated Concrete during Compression with Changes in Its Physical Parameters
Authors: Kshnyakin A , Kovalchuk A , Tsuprik V 
Published: March 2020

Abstract
Conventional in mechanics of material fracture failure criteria GiC and CS based on Griffith’s energy concept about development of a fracture. These criteria postulate fact of occurrence the limiting state in the material around the tip of the crack occurs when the rate of elastic energy growth and the rate of its absorption in the bounded zone are equal. For complex composite materials such as concrete, the possibility of applying these criteria remains controversial due to the pronounced heterogeneity of this type of materials, in which the size of the individual rigid elements of the structure is commensurate with the size of the test samples. But the energy nature of destruction is fair and obvious in any materials, so for them there must be an energy criterion of destruction, which not only States the fact of destruction, but also integrally takes into account the expenditure of deformation energy not only on elastic but also on plastic processes, including thermal. The proposed effective specific energy of destruction of the material as a criterion of destruction should take into account all the features of destruction not as a fait accompli, but as a process of accumulation and dissipation of energy in the deformable volume, and not at the tip of a single crack. The article describes a method for obtaining the effective energy density of the destruction and presents results of a study of this magnitude for one of the types of concrete – autoclaved aerated concrete, given that this relatively homogeneous material is the most suitable for pioneering research is relatively new strength parameter for materials with complex structures. To determine the range of possible values of the investigated value, a factorial experiment was performed with variation of such factors as: density, loading speed and water saturation of cellular concrete. The type of dependence of energy consumption of a cubic sample in time from various factors causes the mechanism of destruction of this material – viscous or brittle and describes the process of accumulation of defects in the process of increasing elastic deformation to the moment of destruction.
The influence of the Content and Dispersity of Aluminum Hydroxide on the Properties of Siloxane Sealants
Authors: Kurbangaleeva A R , Khakimullin Yu N , Volfson S I , Gadelshin R N , Ponomarev P V 
Published: March 2020

Abstract
The influence of the content of aluminum hydroxide of various degree of dispersion on the rheological, physical-mechanical and adhesive properties, thermal and fire resistance of siloxane sealants was studied. It was established that the main factor determining the effectiveness of the use of aluminum hydroxide in siloxane sealants is the degree of dispersion. The introduction of aluminum hydroxide makes it possible to vary widely the viscosity of the sealant compositions, while with decreasing of particle size of aluminum hydroxide the viscosity of the compositions increases. The use of aluminum hydroxide with a minimum particle size makes it possible to obtain siloxane sealants with the most optimal level of physical-mechanical and adhesive properties, however, to increase the thermal and fire resistance of sealants, coarse aluminum hydroxide is most preferred.
The Use of Larch Wood in Composite Wood Elements on Inclined Screwed Rods
Authors: Linkov V I 
Published: March 2020

Abstract
The article discusses the use of larch wood in wooden elements of a composite section on pliable bonds in the form of oblique metal rods (IRS compounds). The test results of samples of IRS compounds from larch wood on inclined screwed rods are presented. The upper boundary of the region of elastic work of IRS compounds from larch wood and deformation of compounds are determined. A comparative assessment of the bearing capacity and deformability of IRS compounds on screwed rods made of pine wooden elements and larch wood is performed. Based on the test results of compounds, the calculations of bending elements of a composite section with a span of 6 m were performed using the theory of composite rods by A. R. Rzhanitsyn. The effectiveness of the use of larch wood in supporting structures made of solid wood is shown.
The Choice of Organizational and Technological Solutions Based on the Modeling Option
Authors: Shatrova A 
Published: March 2020

Abstract
The construction industry in Russia, whose activity affects the economic development of the country’s economy, is changing. This is expressed in the development of new laws, building codes, rules and relevant organizational and technological solutions at the level of construction production.
In this regard, construction production needs to improve organizational and technological solutions, taking into account modern regulatory requirements and production conditions. The selection of traditional methods for updating these decisions is an urgent task that requires proper research.
The analysis of organizational and technological decisions of the organization and technology of construction production showed that organizational models of construction production need to be refined and optimized in accordance with the new realities that the participants in the construction industry have encountered.
This primarily concerns construction organizations operating in conditions of destabilizing production factors.
Construction managers, including engineers and technicians, need to pay close attention to organizational and technological solutions at various stages of the implementation of an investment construction project, especially when drawing up a work schedule.
An important task when using the theory of experimental design is the selection of factors and the determination of their influence (values) during the experiment.
In this regard, the author conducted research to plan and conduct theoretical experiments based on the method of expert survey. Also, given the totality of factors that are random in nature and affect the result, the object for research described in the article (construction production) is considered in the form of a black box cybernetic system.
Research conducted by the author will allow:
- prevent the emergence of destabilizing factors in the construction industry;
- improve the effective functioning of the construction industry;
- elimination of the risk of construction in progress.
The final choice of organizational and technological solutions based on variant modeling using simulation and other methods will improve the quality of technical and economic indicators of both construction production and the investment project as a whole.
Model Pilot Study Statement of Filled Shells Constructions under Dynamic Impact
Authors: Tsimbelman N Ya , Shalaia T E , Chernova T I 
Published: March 2020

Abstract
Formerly uninhabitable Russian territories at earthquake risk are appropriated for exploitation while ancillary development of necessities of life. In this regard, new facilities construction and existing facilities reconstruction in the field of transport, energy industry and other sectors are expected. Combined constructions (e.g. – soil-filled shells) have been increasingly used in construction. Above-mentioned constructions scope of use is potentially wide and if properly estimated they could adequately meet necessary requirements. Nowadays there is an insufficient discussion of construction interaction with the bulk filler and ground foundation, which results in current calculation methodology not covering significant areas of baseline estimate. Thus, the problems of stress-stain state study of these constructions under the dynamic impact remains relevant.
Physical Modelling of the Corona Discharge Effect on the Casting in the Mold
Authors: Ogloblin G V , Ankudinova M A 
Published: March 2020

Abstract
In this article we describe the technique and the methods of physical modelling of the corona discharge usage in order to harden the material. The active substance in the detector is the liquid crystals of a cholesteric type with a mesophase of 40-45 C. The substrate of the detector is a cast of aluminum alloy with specified parameters in the form of a rectangular or round shape. A corona discharge is created with the help of high-voltage power source (e.g. «Разряд») when the voltage is applied to a pair of needle-plane electrodes. The modulation of the ultrasonic signal is carried out through the inductive coupling. The parameters of the corona discharge are calculated with accordance to the received samples and temperature patterns. An assessment of the effect of a corona discharge on a liquid metal is determined by the Brinell scale displaying the indentation hardness.
Construction Sealants Based on EPDM Modified with Silane-Terminated Urethane Prepolymers
Authors: Murtazina L I , Akhmedgoraeva A R , Galimzyanova R Yu , Khakimullin Yu N 
Published: March 2020

Abstract
In connection with the use of new materials and structures in construction, the issue of developing sealing materials for construction purposes with an improved set of properties remains relevant. In particular, sealing materials based on ethylene propylene diene rubber (EPDM) are promising due to their resistance to UV radiation, ozone, and the absence of cold flow. The paper shows the possibility of obtaining reactive sealants based on EPDM and silane-terminated prepolymers - STP based on oligotetraoxymethylene glycol (polyfurite) and based on oligooxypropylene glycol (laprol). The use of prepolymers leads to an increase in the cohesive and adhesive strength of the sealing compositions, while maintaining the cohesive nature of the fracture. Also, the obtained sealants are more technological, since they have a lower viscosity under processing conditions. Extensive tests of reactive sealants based on EPDM have shown that after aging it has a higher level of properties compared to sealants without STP.
Life Environmental Assessment of Housing Safety as a Necessary Condition for Technosphere Human Security
Authors: Glebov V V , Rodionova O M , Erofeeva V V , Anikina E V , Mikhaylichenko R Yu , Solovev D B 
Published: March 2020

Abstract
The paper gives an environmental assessment of frequently used building materials, which are widely used in the construction of modern houses and apartments. The data of chemical composition of building materials, their fire danger, toxicity and quality, as well as the level of threat and danger to human health living in such apartments and houses are presented. Recommendations are given to improve the quality of life of people to improve the overall technosphere human security.
Statistical Assessment of the Strength of the Connection CM-Pasting
Authors: Linkov N 
Published: March 2020

Abstract
The bearing capacity of the “CM-pasting” joint is determined by the strength of the adhesive bonds between the epoxy matrix and the contact surface of the wooden element, as well as the strength of the composite material (CM) in the joining joint. The article presents the results of testing samples of CM-joints in 1, 2 and 3 layers of fiberglass with a thickness of the composite material tkm = 0.45 mm, 0.8 mm and 1.2 mm, respectively, the results of a statistical evaluation of the strength of the CM-bonding joint different thickness of the composite material in the compound. 36 samples of the compound were tested, 12 samples of CM-compound for each thickness of the composite material. The calculated bearing capacity of the samples, the linear bearing capacity of the “CM-pasting” compound for shear, the resistance of the “CM-pasting” joint to shear were determined.
Modeling of the Stress-Strain State of a Composite External Strengthening of Reinforced Concrete Bending Elements
Authors: Merkulov S I , Rimshin V I , Shubin I L , Esipov S M 
Published: March 2020

Abstract
The paper deals with the issues and features of modeling of external reinforcement of reinforced concrete structures with bending using ANSYS software. The technique of modeling of the bent reinforced concrete elements strengthened in the stretched zone by external reinforcement from composite materials approved by full-scale experiments is given. This clarification of the application of the methodology with different approaches to the strengthening of the structure. The qualitative and quantitative dependences between experimental and numerical studies confirming the prerequisites of the study are established.
Risks in Managing the Physical Parameters of Foams for Cellular Concrete
Authors: Borkovskaya V G , Rimshin V I , Degaev E N , Shubin LI 
Published: March 2020

Abstract
The main issue of the study is the problem of risks and changes in the physical parameters of cellular concrete foams. As part of the detailed analysis, it is necessary to comply with the requirements to ensure risk reduction, environmental safety, public health and consistency of any management of physical parameters of foam, as well as to improve the quality of life. The aim of the study is to reduce costs, reduce the marriage of finished products and achieve stable results, technology for the production of foam concrete should know the mechanism and process of obtaining foam. The system of indicators should be tiered, to take into account the multiplicity, stability, dispersion, density, structural mechanical properties, bearing capacity, impact on the change of melt finished mixture, hydrophobization, gidrofilizatsii, the influence of foaming agents on the hydration (setting) of cement. In conclusion, the proposed analysis can be used in the regulatory and technical regulation of technology for the production of foam concrete in construction and production.
Problems and Risks of Control in the Housing and Communal Services Industry
Authors: Borkovskaya V G , Degaev E N , Rimshin V I , Shubin I L 
Published: March 2020

Abstract
The main issue of the study is the problem of increasing control and reducing risks in the housing and communal services industry. In the framework of an integrated and efficient development of the territories must meet the requirements for reforming and modernising the housing and utilities complex (HUC) in the country and ensuring ecological safety, protection of public health and of housing and utilities services for the benefit of present and future generations, and with the aim of improving the quality of life. Taking into account not only national but also international standards, the program of socio-economic development is becoming a priority for both housing and communal services and urban development of the country. The aim of the study is to develop a system of criteria to improve the stability and reliability of the housing and communal services. The system of criteria should take into account all stages of interaction from consumers of utilities to the executors of their provision and management. To effectively implement the modernization of the industry and improve competitiveness, it is necessary to determine the risks and ways to minimize them. The system of monitoring the introduction of energy-saving technologies in the housing and communal services, obtaining economic effect, which is one of the key indicators for potential buyers, needs to be improved. In sum, the proposed system of criteria can be used in the regulatory and technical regulation of housing and communal complex.
Far East region’s Key Advantages Realization by the Example of the NEFU Proving Ground in the “Kangalassy” Advanced Special Economic Zone
Authors: Filippov D V 
Published: March 2020

Abstract
The article is devoted to the implementation of the investment project of the North-Eastern Federal University Proving Ground on the territory of Advanced Special Economic Zone “Industrial Park “Kangalassy”, which is distinguished by the use of natural climatic and geographical features of the region for research, production and commercial purposes. Projects in the field of use of unique climatic conditions assume creation of the scientific proving grounds, the research centers, development and advance of services of the centers of collective use. Having test and lab equipment they allow to carry out experimental completion and tests of trial samples of machines, materials and technologies in natural extreme conditions. The uniqueness and importance of the proving ground as a universal testing center for various materials, machines and equipment is indicated. The materials presented in the article are the result of extensive preliminary research, which allowed to identify competitive advantages, calculate technical and economic parameters and, as a result, implementation decision.
Single Agricultural Tax as an Instrument of State Support of Agribusiness in the National Agro-Industrial Complex
Authors: Zaripova I R , Zaripova G M , Khisaeva A I , Akhunova V N , Gavrilenko I G 
Published: March 2020

Abstract
The urgency of the studied issue is due to the fact that the single agricultural tax (SAT) is an advantageous taxation system: there is one tax that replaces several other taxes, due to which the burden on business is significantly reduced. The purpose of the article is to solve the task of developing a system of state support for the agro-industrial complex of Russia in the direction of developing effective approaches to the taxation of agricultural producers. The practice of applying SAT and managing its further improvement is controversial, but the need for further economic and tax incentives for business entities in the agricultural sector is obvious. In the process of research, important theoretical and practical results were obtained. On the basis of the analysis of existing mechanisms in the agro-industrial complex, areas requiring scientific and methodological comprehension were identified: risks in agriculture, the specifics of financial relations, the level of tax burden, the relevance of the application of differentiated approaches to taxation. The paper outlines the role of the state as the main regulator of the agro-industrial complex in the process of implementing the national policy on food security. The paper identifies the characteristics of the tax base and SAT accruals in Russia in 2007-2016, analyzes the modern practice of SAT application by agricultural producers of Russia, investigates the advantages and disadvantages of SAT, the problematic aspects of SAT The study presents conceptually new methodological approaches for the further development of SAT.
The practical significance of the study lies in the possibility of using its materials and results by the Ministry of Finance of the Russian Federation and the Federal Tax Service for the purposes of tax planning and forecasting the amount of tax revenues from organizations belonging to the agro-industrial complex; by the Ministry of Agriculture of the Russian Federation for the purpose of studying the optimal combination of a set of instruments of state financial support for the agro-industrial complex, distribution of subsidies and tax burden on its subjects.
The results of the research can be used to prepare educational materials for the disciplines: “Taxes and the tax system of the Russian Federation”, “Taxation of organizations”, etc.
Model of Decision Support on Regulation of the Vegetable Market
Authors: Kelejnikova S , Shlapakova N , Samygin D 
Published: March 2020

Abstract
Now in Russia there is no population requirements satisfaction in vegetable food which consumption honor one half less necessary regulations. Are basic reasons the low production rate vegetables and a consumer capability of the population that is in turn connected with the low level of development of market infrastructure. It attracts the imperative need of enhancement tools of agrofood policy for the market of vegetable products, transformation of models of organizational and economic development of the food market of vegetables. In work evaluation methods of market concentration of Gerfindalya-Girshman, the index Linda, an analysis technique of market potential, economic-mathematical methods of extrapolation trends and optimization of production were used. The research is executed according to agricultural producers of vegetable products Republic of Mordovia (RM). In work features and the existing problems of effective functioning vegetable subcomplex are shown, major factors of market development vegetable products are generalized, the technique is created and the analysis and assessment of a condition competitive environment in the market of vegetables in the Republic Mordovia are carried out on it, models on optimization of the structure of sown areas vegetables in agricultural enterprises, according to the market capacity of the vegerablegrowing entities, on an organizational structure of the wholesale food market are developed. Results of a research will be useful to authorities to forming of food policy in the market vegetable products as they allow to determine the perspective directions and line items in the sphere of sale vegetable products stimulating their further production.
Financial Risk Management of Transport Industry
Authors: Borodavko L , Rusakova O , Golovan S , Semenova E 
Published: March 2020

Abstract
Many organizations attract borrowed sources of financing, use various financial instruments, use a commercial loan, carry out operations in foreign currency, etc. The management of financial risks is necessary because of their enormous influence on the results of the entire activity of the organization. The article analyzes the financial risks arising from the organizations of the transport industry, as well as put forward ways to minimize their negative impact.