bluuebunny/crossref_metadata_2025_split huggingface dataset:
Building energy modeling as a mandatory requirement of cooperative housing projects
Authors: Larionov A , Smirnova E , Larionova Y 
Published: September 2020

Abstract
Energy modeling of buildings reduces sales risks in the sense that it contributes to expanding the spheres of business, hi-tech production, innovations and information telecommunication technologies, improve the state of the environment. Until recently, the risks of “equity holders” were quite high despite the insurance system and bankruptcy procedure in accordance with the federal law. The process of cooperative housing projects did not prevent from frankly fraudulent schemes. Regulatory authorities have established strict requirements for the legitimate use of homebuyer’s assets, having formed the interaction with developers in electronic format. Among the pressing issues of organization and management of construction, one of the most significant is the problem of shared housing construction and efficient pricing management since the strategic approach of urban development and housing and utilities infrastructure depends on its decision. Depending on the problems facing a developer at various stages of its activity, the assessment of its reliability seems to be the most controversial. The tendency towards the destruction of the institutional fundamentals of housing was clearly marked; the implementation of most housing projects has been questioned. The system of standards for energy modeling allows the use of data for optimal pricing in order to avoid risks and harmonize relations between developers and shareholders at an early stage of the project. Building energy modeling as a mandatory requirement of cooperative housing projects are aimed at the construction of eco-friendly, economically- and energy-efficient buildings and entire districts convenient for living with the use of biopositive architectural and planning design concepts.
Current issues of energy efficiency in water consumption and discharge, and environmental safety in St Petersburg
Authors: Smirnova E 
Published: September 2020

Abstract
The author attempts to determine current issues energy efficiency in water consumption and discharge, and environmental safety in the field of construction activities. A methodological rationale for measures to increase in water consumption efficiency is given. Mass discharges of polluted wastewater by industrial enterprises and utilities infrastructure, diffuse runoff from urban areas, industrial sites and agricultural fields result in total pollution of surface and many underground water sources in St Petersburg. The scenario for 2030 based on a predictable number population of approximately 6.5 mn people and a specific rate of drinking water consumption of 160 l/day is considered optimal. There is one paradox: efficiency enhancement measures would have to stabilize tariffs for water use and disposal, but they are actually rising. The author analizes a number of priority measures are required to provide for the stable operation of the water use and disposal system in public utilities and urban enterprises. Author’s concept of the utilities infrastructure functioning involves the introduction of public private partnerships. To stabilize tariffs for water use and disposal, it is necessary to implement public private partnerships. However, it shall be carefully reasoned on the basis of full information and statistics on the housing and utilities infrastructure operation.
Block diagram of the automatic model of technical documentation
Authors: Baratov D , Aripov N , Muxiddinov O , Jumanov X 
Published: September 2020

Abstract
The article explores the features of electronic document management of technical documentation of railway automation and telemechanics. The article deals with the synthesis of mathematical models of electronic document management of technical documentation of railway automation and telemechanics. For this purpose, the real processes of creation, verification and use of technical documentation were examined using the example of the process of accounting and control of railway automation and telemechanics devices, which made it possible to identify a structural diagram of a formalized model of technical documentation. A model of electronic document management of technical documentation is created using the mathematical apparatus of finite state machines. A block diagram of an automaton model of technical documentation is developed. The proposed block diagram of a formalized model of technical documentation consists of matrices of external microoperations, internal microoperations, code creation for the following microcomponents. The number of internal states of the firmware is completely determined by the number of logic elements of the algorithms. The size of the matrices depends on the number of operators and logical conditions in the logic circuits of the algorithms.
Business center construction project as the model of resource-saving building
Authors: Luchkina V V 
Published: September 2020

Abstract
Design with resource-saving technologies has become an important part of the Terms of Reference for the project, and environmental friendliness has become a key core of the business center marketing strategy. The purpose of research was to develop the business center construction project as the model of resource-saving building. The research results are the following tasks: to create the comfortable environment for lessees and guests: thermal and visual comfort, air exchange quality; to ensure high energy efficiency of the building; to reduce the resource consumption costs to maximum (energy, water and heat). In the research, the project concept and business plan were developed, the project risks analysis was conducted and the project economic efficiency assessment was performed. In the course of research, the calculations of the full life cycle cost of the building were analyzed and made. The following technical characteristics on internal and external lighting, heat supply of the building, comfortable environment, heat exchange quality, water treatment and re-use, and energy-efficient elevators were considered. The project comprises the land improvement plan for adjacent territory, including introduction of the “green” roof technology to into operation. In the project, the risk of excess water consumption and damage of finishing materials and equipment were brought to minimum. It is planned to have separate accounting of the energy, water and heat by various lessees, floors and functional areas of the business center. The readings will be recorded by the automated control and dispatch system of the building. This will make it possible to conduct a detail results analysis, keep statistics and set the goals to reduce the resource consumption.
Implementation of thermonuclear fusion platforms as the foundation of energy efficiency for the global social and economic sustainable development
Authors: Altoukhov A V , Tishchenko S A 
Published: September 2020

Abstract
This article gives an overview of the state and private projects in such domains as promising technologies of the controlled thermonuclear fusion. Topical energy and economic issues (uncertainties) and threats have been studied, including the requirements applied to existing and future energy economics in order to achieve energy efficiency and sustainable global development. Results of the research of multiple international and private projects dedicated to nuclear power show their inner correlations and scopes of application. The article also aims to confirm the idea that state and corporate support of innovative energy startups is much more efficient than the monopolization and direct administration of the energy domain. Additionally, it shows that trending information technologies have laid the foundation for the development and implementation of controlled thermonuclear fusion, which in future will become a source of energy compatible with all requirements of global development. And those innovative technologies will support a long-term sustainable development of international innovative network economies.
Energy systems modeling and assessment of the efficiency of quality management systems in high-rise construction
Authors: Kazaryan R , Pogodin D , Galaeva N , Mirzakhanova A 
Published: September 2020

Abstract
Construction reorganization, as a type of construction of high-rise buildings, is a part of a basic reorganization cycle. Features of renovation of built-up areas and issues of energy modeling are considered. The experience of assessing the efficiency of quality management systems for the organizational structures of construction management and common approaches to solving this issue are currently insufficient. Loft style methodology is used: the integrated performance indicator of organizational and technological operational reliability (OTOR) in high-rise construction. The possibilities of the construction method using 3D printing technology are considered. Comparative analysis of cost indicators for the construction of walls made of concrete blocks with plaster, brick cladding and ApisCor technology is made. These circumstances allow formulating the scientific task of the study. On the basis of the well-known BIM technology for information modeling of objects, a bank (information base) of standard implementation plans (IP) is created, from which the most rational IP for this type of work is selected using the criteria research method based on modified genetic algorithms (GA). The issues of choosing a method of construction work by the totality of implementation plans of construction and installation works are considered.
Electrohydraulic pretreatment method for the purpose of complex enrichment of fine clay ores of weathering crust
Authors: Martynov N , Dobromirov V , Avramov D , Miroshkin V 
Published: September 2020

Abstract
The paper substantiates the possibility of applying the technology based on the use of electrohydraulic effect for the preliminary preparation of clay ores with fine mineral phases. The technology was developed in the laboratory by conducting experimental studies on samples of several types of clay rocks and ores that differ in the composition of inclusions of solid fractions in them. Experiments have confirmed that with the optimal selection of operating modes of a specially created electrohydraulic unit, high selectivity is achieved for crushing and dispersing different strength minerals and mineral phases of sample materials, which ensures the destruction of the clay component while maintaining the integrity of solid fractions. Removal of water-soluble clay fraction with the pulp and washing of the resulting intermediate product provides a high degree of cleaning of solid inclusions from clay. This makes it possible to recommend the use of electrohydraulic technology for cleaning solid fractions of fine clay ores from clay at the initial stage of ore preparation, followed by the extraction of valuable minerals from the resulting intermediate product of enrichment by traditional methods.
Oil tank operation efficiency
Authors: Shaikhutdinova M , Gots S , Yamaletdinova K , Yamaletdinova A 
Published: September 2020

Abstract
Oil tank operation efficiency highly depends on the bottom sediments clean out technologies. In order to monitor oil tank efficiency and provide design improvements certain electro-physical studies were performed. These studies allowed to find the homogeneity conditions; oil-water phase boundary; monitor and identify the state of matter and lead to significant design improvements. It was proposed to update design and arrangement of the inlet and outlet nozzles of oil tank and place them in opposite sides of tank. Along with continuous electro-physical monitoring of the phase boundaries new design allows to increase overall efficiency of oil tank.
The study of heart transfer during boiling process of organic fluid
Authors: Peretyatko M A , Yakovlev P V , Peretyatko S A , Deev A S , Dyachenok G 
Published: September 2020

Abstract
The paper considers the problem of studying heat transfer inside the pipes of an evaporator of an organic Rankine cycle unit during boiling of an organic heat transfer fluid. Recently, the organic Rankine cycle units are increasingly used in various industries for the utilization of low-grade heat of various processing units. One of the main elements of these units is the evaporator in which vaporization takes place. The evaporator is a concurrent boiler. One of the problems in the design of concurrent boilers is the lack of knowledge of heat transfer during the process of boiling fluid. This paper presents a study of the heat transfer process inside a concurrent boiler. This study is carried out by creating a model of boiling organic fluid in the pipes of a concurrent boiler. The boiling model was implemented in the Ansys fluent software package. Using this model, the values of the heat transfer coefficient were obtained at each point of the evaporator pipe under consideration. After obtaining the values, the dependence of the heat transfer coefficient on the length of the pipe was analyzed. As a result of the analysis, it was determined that starting from the point of 0.6 m, the heat transfer coefficient sharply decreases by 3.5 times. The value of the heat transfer coefficient after the decrease section is at the level of 125 W/m2K over the entire length of the pipe. Thus, it was determined that under given initial conditions, with a pipe length of more than 1 m, heat transfer ceases to be effective.
Study of thermal resistance of non-woven heat-insulating building materials
Authors: Lisienkova L , Komarova L , Nosova L 
Published: September 2020

Abstract
The article presents the results of experimental studies of thermal resistance of non-woven heat-insulating materials under cyclic compression. It has been experimentally established that a change in the thickness of materials during cyclic compression leads to a change in the thermal resistance of studied objects. The dynamics and magnitude of the change in thermal resistance primarily depend on the structure, fibre composition and method of producing the material, to a lesser extent they depend on the initial thickness of the material before compression. As a result, a methodology for evaluation the thermal resistance of heat-insulating materials has been developed. The application of developed methodology allows objective selection of non-woven heat-insulating materials at the design stages of building construction.
Physical characteristics of the thermal impact of an emergency fire
Authors: Tumanov V , Chibidin A , Tumanov A 
Published: September 2020

Abstract
The article is devoted to the identification and analysis of the physical characteristics and thermal effects of a fire in an emergency situation. The main purpose of the work is to study the influence of physical damaging factors on the degree of danger of a potentially hazardous object. The article considers a deterministic method for assessing the effects of the action of a physical damaging factor (intensity of thermal radiation). The study is an effort to analyze the physical damaging factors of the fire, because it is the physical basis for an objective assessment of the danger and risk of an accident at the researched object.
Air-jet cover for heat treatment chamber
Authors: Pukhkal V , Pankov V , Spitsov D 
Published: September 2020

Abstract
To increase the efficiency of local exhaust hoods for removing harmful substances emitted during technological processes, air is supplied by jets to create an air curtain (air-jet covers). The air curtain prevents the spread of harmful substances, does not interfere with the technological process, and leaves the equipment open for control and monitoring. The device of local supply and exhaust ventilation of the open doorway of the UKM Classic M 2005 chamber made by Mauting is considered. The chamber is designed for heat treatment of meat products in the food industry. Geometric models have been developed, including a heat treatment chamber, a room from which the chamber is loaded, a supply and exhaust hood above the door from the chamber to the room, and a supply air duct with air distribution devices. For comparison, an option of using an exhaust hood without supply air was also studied. The STAR-CCM+ software package was used as a calculation program. The results of computational experiments on modeling the operation of the local ventilation system of the heat treatment chamber are presented. The analysis of the calculation results and comparison of the efficiency of local ventilation devices are carried out. The studied design of the supply and exhaust hood ensures that heat and gases coming out of the heat treatment chamber are captured at a 17% lower supply and exhaust air flow rate compared to the exhaust hood.
The influence of external pulse-vibrational loadings on the atomic-molecular motion in real soils
Authors: Magkoev T , Zaalishvili V , Tuaev G 
Published: September 2020

Abstract
The connection between the effect of atomic-molecular vibrations on macroscopic phenomena in real soils is investigated. Granite and clay samples were used as an object of study. The experiment was carried out by IR spectroscopy method. Spectra from the samples were taken under various external loadings. The clearly nonlinear nature of the phenomena occurring in real soils was established. The results of the experiment were compared with the data for real soils obtained in field surveys using the GSK-6M explosive source. This procedure confirmed the relationship of atomic-molecular vibrations with manifestations on macroscopic objects.
Peculiarities of weather and ground freezing conditions in Siberia and Russian Arctic in winter and spring period of 2019/2020
Authors: Frolov D 
Published: September 2020

Abstract
As a reason of anomalous warm winter 2019/2020 in Russia, as well as in Europe and USA along with the global warming is considered a non-typical situation in Arctic, where the extremely stable area of low pressure in the vicinity of North Pole was present during long time period and which does not let the cold air masses to move away from its borders. Such situation lead to the consequence, that on the most of the territory of Russia, USA, Northern Europe and Eastern Canada the temperature of winter months was on a few degrees more than usual. Due to these warm winter months 2019/2020, largely increasing in recent decade’s amount of snow and snow cover thickness and hot spring months 2020 in Siberia and Russian Arctic the winter ground freezing was not very intensive and active layer thickness at the beginning of the summer was rather high. This led to the oil tank construction damage in Norilsk on 29 May 2020 due to the instability of the basement and catastrophic oil spill into the river happened.
Comparison of three systems of soil hydrophysical functions on example of silt loam
Authors: Ginevsky R S , Lazarev V A , Topaj A G , Nikonorov A O , Dunaieva I A , Terleeva A V 
Published: September 2020

Abstract
Three systems of functions are used to describe the water-retention capacity and the ratio of the hydraulic conductivity of the soil to the moisture filtration coefficient (relative hydraulic conductivity of the soil). Each of the three systems uses an appropriate set of parameters. These parameters are common to each pair of functions that make up the corresponding system. The parameters of the first system of functions are formal in nature and are used in the Mualem-Van Genuchten method. The parameters of the second and third systems have a physics-statistical interpretation. The main purpose of the considered systems is to predictively evaluate the values of the relative hydraulic conductivity function using parameters identified by the point approximation of data on the water-retention capacity of the soil. Using the soil example «3304 Touchet silt loam» from the Mualem catalog, three systems of functions are compared. In order to identify significant differences between the errors of the compared function systems with respect to the point approximation of data on water-retention capacity, as well as for predictive estimates of the values of the function of the relative hydraulic conductivity of the soil, the Williams-Kloot test is used. The influence of the additive parameter describing the capillary pressure of the «air inlet» on the errors of the second and third systems is estimated. The results of the study indicate the advantages of the second and third systems over the first system, the functions of which are used in the Mualem-Van Genuchten method. The third system is formulated in the form of fairly simple relationships using elementary mathematical functions and is recommended for modeling the hydrophysical properties of the soil and solving problems of ameliorative farming.
The use of the Monte Carlo method for predicting environmental risk in construction zones
Authors: Smirnova E 
Published: September 2020

Abstract
The article analyzes the problem of determining environmental risk. The author took into account the features of natural landscapes when choosing a model of environmental risk in order to predict the level of interaction of the construction project with the environment. The matrix of construction zones distributions and the risk of environmental vulnerability are compiled on the bases of the study of the anthropogenic impact parameters on natural landscapes. Monte Carlo simulation method allows predicting the process of techno genesis relative to the natural environment within the limits of confidence interval. The industrial territories of the Far North and the regions equated to them are characterized by the highest probability and level of risk, as well as vulnerability. The impact of techno genesis on all four components of the environment (atmospheric air, hydrosphere, lithosphere and biosphere) in all areas of construction work normalization will continue to increase. This is indicated by trend graphs of the predicted values of anthropogenic impact within the industrial and residential zones. The quantitative characteristic of possible ecosystem “failures” as a result of anthropogenic interference is analyzed using a point scale. The worst-case scenario can be defined as post-catastrophic (ultra-high risk, emergency measures in emergency situations, score 26-30). The reliability of the simulated forecast is confirmed by the anthropogenic accident in Norilsk in June 2020, the largest and most unprecedented in the history of the Arctic.
Invariant measures for contact Hamiltonian systems: symplectic sandwiches with contact bread
Authors: Bravetti A , de León M , Marrero J C , Padrón E 
Published: September 2020

Abstract
We prove that, under some natural conditions, Hamiltonian systems on a contact manifold C can be split into a Reeb dynamics on an open subset of C and a Liouville dynamics on a submanifold of C of codimension 1. For the Reeb dynamics we find an invariant measure. Moreover, we show that, under certain completeness conditions, the existence of an invariant measure for the Liouville dynamics can be characterized using the notion of a symplectic sandwich with contact bread.