bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of a Method for Minimizing the Negative Environmental Impact of Drill Cuttings by Using It as a Mineral Powder in Asphalt Concrete
Authors: Vlasov A S , Pugin K G 
Published: March 2021

Abstract
The article describes the problem of environmental pollution from the placement of drill cuttings in it. The main sources of contamination are oil products included in the drill cuttings, chemicals added to the drilling fluid, and heavy metals. In order to reduce the negative impact, it was proposed to use the resource potential of drill cuttings as a mineral powder in the technology for producing asphalt concrete. Samples of drill cuttings were taken in the fields of Western Siberia. It has been established that there are no excesses in the standards for the content of heavy metals in mobile form in samples of drill cuttings. The analysis of physical and chemical characteristics showed that there are high values of COD, oil content, dry residue, rigidity, magnesium and calcium ions, chlorides. Laboratory studies have shown the possibility of using drill cuttings as a mineral powder in asphalt concrete. The optimum composition of the asphalt mixture was obtained. The obtained physical and mechanical properties of asphalt concrete samples comply with the requirements of regulatory documents. It is established that the strength characteristics depend on the percentage of drill cuttings in asphalt concrete: with an increase in the share of drill cuttings, the value of the tensile strength decreases, and at the same time there is a discrepancy with regulatory requirements.
Reorganization of Waste Management Scheme for Construction and Demolition
Authors: Gorbachevskii V P , Pakhomova L A , Borovskih A V 
Published: March 2021

Abstract
The subject of the study is the organization of waste management of construction and demolition in the context of large-scale urban programs for new construction and renovation. This work is aimed at analyzing the principles of organizing the processing of construction waste and forming a proposal for the modernization of functional and planning schemes for handling construction and demolition waste in the context of large-scale urban programs for new construction and renovation. The following materials and methods were used: normative and technical documentation, construction organization projects, a list of environmental protection measures developed as part of the project documentation of implemented capital construction projects; additive scientometric analysis, generalization and presentation of aggregate experimental data on aspects of waste management of construction and demolition. The analysis of the principles of organization of processing of construction waste is performed. The functional and planning scheme of a stationary unit for processing construction and demolition waste and creating (producing) finished products with the integration of construction waste to create materials and products for new construction and renovation is proposed. The future use of the proposed functional and planning schemes is focused on making correct organizational and technological decisions when preparing organizational and technological documentation for capital construction projects. The development and implementation of economically and technologically sound management schemes for construction waste plays a relevant role in achieving responsible consumption and production, as well as in ensuring the transition to rational management models.
Organic Waste as a Renewable Energy Source
Authors: Zimoglyad A D , Klimanov T V , Terlyga N S 
Published: March 2021

Abstract
The problem of recycling organic waste is a relevant one, as the accumulation of industrial, domestic and agricultural pollution that negatively affects the biosphere continues. It causes pollution of air, water, land and adversely affects human health. In developed countries resources are increasingly being reused and it’s called “recycling economy”. Recycling involves reuse or recycling of production or waste. Two points there are particularly significant: turns waste into a resource; prevents the costs that society would incur in their polygon burial. Food waste effluents are huge. Food waste taken to landfills rots, attracting disease carriers. Greenhouse gases - carbon dioxide and methane - are released in rotting processes with negative local and global effects (climate impacts).
Mine Surveying Control of Wells
Authors: Mogilny S , Sholomitskii A 
Published: March 2021

Abstract
The article considers the problems of increasing the accuracy and reliability of processing of inclinometric and telemetric data. It provides the review of domestic and foreign references for the topic. It is noted that by no means all the tasks are solved methodically correctly and most effectively. The work proposes the method of processing the inclinometric survey data, which takes into account the data correlation of adjacent intervals. It also provides statistic solution of the task of determining the ellipsoid crossing, undetermined location of well bottom and design tolerance area. The algorithms proposed in the work are realized in program complex “Mining and geodetic networks and survey”. The analysis of error accumulation in determination of well bottom undetermined ellipsoid showed that calculation without taking into account the correlation of adjacent intervals underrates the final error, i.e. the size of undetermined ellipsoid by 20 – 40%. The determination of tolerance area sizes must be performed for a particular deposit or a group of deposits with similar mountainous and geological conditions. The increase in wellbore accuracy requires the increase of instrumental accuracy of telemetric and inclinometric devices.
Complex Use of Various Types of Energy in Processes of Food Production and Storage
Authors: Ermoshin N A , Romanchikov S A , Nikolyuk O I 
Published: March 2021

Abstract
In order to improve the technological equipment of the food industry the issues of the development and application of innovations in food production are considered. The effects of the use of traditional types of energy and physical and mechanical fields in the production, storage and transportation of food are analyzed. Particular attention is paid to the complex effects of fields with various nature on technological processes. New principles of the development and production of technological equipment based on the synergy of heat, ultrasound, vacuum, pressure, electromagnetic effects, mechanical vibration are proposed. To estimate the effect of the integrated use of various types of energy in the preparation and storage of food products, a synergy coefficient has been introduced and justified. The results of theoretical and experimental studies of the complex effect of various types of energy on the initial components of food products and their production processes are presented in the form of graphs. The assessment of the effects of the integrated application of vepol technologies, allowing to increase the efficiency of technological equipment, productivity, to reduce energy costs, increase the usable shelf life of products, make it safer and better.
Substantiation of the Project of an Environment Protection Thermal Protective Product for Disabled People Taking into Account the Impact of Environmental Factors of the Natural and Technical Environment
Authors: Babenko L G , Molev M D , Savelyeva N Yu 
Published: March 2021

Abstract
The article presents the research results of the impact of various environmental factors on the design parameters of heat-protective products for the disabled. It is shown that the assessment of the environmental friendliness and safety of this type of clothing must be considered in the framework of the complex dynamic system «external environment – clothing – people». Detailed attention is paid to the research of the effects of thermo-physical factors on human body of people with limited motor capabilities in negative ambient temperatures. Based on the results of the analysis, a working hypothesis of research has been put forward and confirmed. It was established that the design of a heat-protective product must be carried out taking into account the individual characteristics of the body, which are manifested in the complex elements interaction of the subsystems of the specified system. In the framework of this thesis, the analysis of the relationship of factors is carried out and parametric assessment of the adaptation of the disabled people to temperature variations is given. To justify the choice of material types and structural elements of the product, a mathematical model of heat transfer processes has been developed to provide a qualitative forecast of the thermal state of the human body.
Zero-Emission Water Cycle When Developing Underground Gas Storage in Rock Salt Formation
Authors: Lokshina E A , Kolchin A V , Mastobaev B N 
Published: March 2021

Abstract
The aim of the work is the possibility of creating a closed water cycle during the development of underground gas storages in rock salt formations with obtaining commercial sodium chloride. Desalination experiments were carried out on standardized test solutions with various concentrations of sodium chloride (1%, 5%, and 10% solutions NaCl). Desalination was executed on a pilot electrodialysis unit, as this process has a higher degree of concentration than reverse osmosis. The dissolution rates of formation (NaCl) were determined under conditions of salt formation washing-out. Optimal concentrations of brine were defined experimentally. The possible salt rejection is determined. It is possible to direct the concentrate to the evaporation unit and obtain commercial salt - sodium chloride. Experiments have shown that it is possible to desalinate brine obtained by formation washing-out and reuse the desalted permeate. This reduces operational costs, as to obtain commercial product it is required smaller volume of evaporation unit. It also helps to reduce consumption of fresh water needed to salt formation washing-out. The flowsheet of the water cycle during the development of underground gas storages in salt formations with obtaining a commercial product at the output has been developed.
Corrosion Resistance of Quenched Aluminum Alloys with Transition Metals
Authors: Mishenina I , Khudoyan M , Barviniuk N 
Published: March 2021

Abstract
One of the effective and real ways to increase the corrosion resistance of a material is to increase its tendency to passivation and increase the stability of a passive state. As a rule, this reduces the effect of anticorrosive alloying of Al and Fe with metals, which, despite the higher electrochemical activity, have an increased tendency to passivation. It is known that, along with the chemical composition, the structure of alloys has a significant effect on the corrosion properties. Resistance to general and pitting corrosion of microcrystalline aluminum-based alloys can be both higher and lower than the resistance of alloys obtained by the standard smelting method. To assess the corrosion resistance of rapidly quenched alloys of the Al-Co-Zr system in a NaCl solution, the values of the corrosion rate by weight loss were calculated.
Combined Method for Calculating Non-Continuous Noise in Industrial Buildings
Authors: Golovko A V , Antonov A I , Ledenev V I 
Published: March 2021

Abstract
In multi-storey industrial buildings, technological processes are widespread, whereby a non-continuous in time noise regime is formed in rooms. When choosing and designing means of noise protection in these cases, multiple calculations of the energy characteristics of the noise fields of premises are performed. The effectiveness of the designed noise protection measures depends on their accuracy. The degree of accuracy is determined by the completeness of accounting in the method for calculating the factors affecting the formation of noise fields in rooms. One of them is the nature of the reflection of sound from fences. As a result of the analysis of the distribution of the reflected sound energy, it was found that in industrial premises the reflection of sound has a specularly scattered character. In this case, two reflected fields are formed in them - specular and diffusely scattered, having different principles of the appearance and dispersion of reflected sound energy.
To calculate the energy characteristics of such fields, a combined calculation method is proposed in the article. Considering that the premises in industrial multi-storey buildings have a regular rectangular shape, in the proposed method, the specularly reflected energy is calculated by the method of imaginary sources, and the diffusely scattered energy is calculated on the basis of the Kuttruff integral equation. All the basic principles of building a combined computational model are stated. The accuracy of the method was assessed by comparative analysis of experimental and calculated data in rooms with a regular geometric shape.
In contrast to the existing methods, the proposed method simulates the real process of the transition of the arising specularly reflected energy into the diffusely scattered one. In this case, the method takes into account the specific acoustic characteristics of each section of the fence, to be exact, its sound absorption coefficient and the scattering coefficient of reflected sound energy. In the proposed form, the method makes it possible to calculate non-continuous noise in rooms with a regular geometric shape, typical of multi-storey industrial buildings.
Investigation of the Motion of Viscous Fluid between Rotating Disks
Authors: Keruchenko L S , Kulaeva A G , Soyunov A S , Kuzmin D E , Marus M L 
Published: March 2021

Abstract
The issue of the motion of fluid between two rotating disks often arises in practice and it has been little investigated yet. The practical instances of this issue are designing distributors of disk-type fuel pumps, lubrication of smooth disk surfaces during rotation etc.
The present article studies the process of the leakage of fluid between disks when the fluid is supplied to the disks under a certain pressure P. The objective of the research is to obtain mathematical models for determining the amount of the fluid leaking at the pin and the amount of the fluid leaking out. It is shown that the leakage of the fluid between the disks can be described using the Navier–Stokes equation system. The mathematical models for determining the amount of the fluid leaking at the pin and the amount of the fluid leaking out have been obtained.
A contribution to the issue of wheel base change of a motor vehicle during its modification for increased automotive traffic safety
Authors: Molev Y I , Cherevastov M.G. 
Published: March 2021

Abstract
The paper presents a study of the change of the transient duration, of the control sensitivity of the vehicle, of the gain and the response delay of N1 Cat. cargo vehicle at instant and harmonic steering control action. The changes are caused by vehicle modification via wheel base length extension. The wheel vehicle is represented by a flat single-mass calculation model. Based on the conducted calculation, additional influence of the driving speed as a risk factor has been revealed. In the summary of the paper, a conclusion is made on the presence of the influence of the vehicle wheel base length change on the automotive traffic safety.
Assessing load on support rollers of the tracked load-transport timber harvesting vehicle through simulated mathematical modeling
Authors: Klubnichkin V E , Kotiev G O , Makarov V S 
Published: March 2021

Abstract
The article describes a process of simulated mathematical modeling of movement of a tracked load-transport vehicle in the applied software package followed by output of the results of the loads acting on the portside and starboard support rollers during movement at different speeds on flat surfaces, over single 100 to 400 mm obstacles located at a certain distance from each other, on sinusoidal unevenness and along a preset microprofile of the bearing surface. It also describes conditions of the virtual tests conducted.
Determination of the moment of resistance to turning of a forestry articulated machine
Authors: Rogachev D , Alyabiev A , Latysheva V 
Published: March 2021

Abstract
This article considers the calculation of the moment of resistance to turn off a wood articulated machine. The total moment is determined from the sum of the moment of resistance to turning the tire in place, the moment that occurs when the ground is cut off by the side surface of the tire, the moment of resistance to rolling the wheel.
Development of KORSAK 8x8 small-size all-terrain vehicle design project
Authors: Kapustin A G , Papunin A V , Belyaev A M 
Published: March 2021

Abstract
The paper presents KORSAK 8x8 Small-Size All-Terrain Vehicle Design Project developed in Nizhny Novgorod State Technical University n.a. R.E. Alekseev. Performance specifications of the vehicle non-inferior to those of the existing similar vehicles. This all-terrain vehicle has better ergonomics and visibility from the driver seat. The cabin design of the vehicle complies with the requirements of the applicable Codes and can be certified for use in the Russian Federation. For inspection of the aesthetic properties of this all-terrain vehicle, a 1:5-scale dummy was made.
Efficiency of the simulation model of a light commercial vehicle
Authors: Butin D A , Tumasov A V , Vashurin A S , Gnenik M E 
Published: March 2021

Abstract
The paper describes the results of the efficiency analysis of the simulation model of light commercial vehicle GAZ GAZelle NEXT. The efficiency of the model is confirmed by comparing the results of field test and calculation studies of controllability. The model is built in the MSC ADAMS/Car software package. It accounts for the mass-inertial characteristics of sprung and unsprung masses; the model of the suspension system simulates the kinematics and elasto-kinematics of the suspension and steering control, as well as elastic and damping elements. The tire model simulates vertical stiffness and damping, the slip stiffness depends on the vertical load, the longitudinal slip coefficient and the lateral angle of tire relative to the contact surface. The assessment was made by comparing the data obtained experimentally and by calculation. The test is conducted using the Fishhook method applied by NHTS for the vehicle stability analysis. The resulting errors are analyzed based on relative and absolute error values. When analyzing lateral acceleration and yaw rate deviations, the mathematical statistical tools are employed: average deviation, dispersion, root-mean-square deviation. The discrepancy between the results and the deviation of the average values does not exceed 10%. Minor deviations and scatter of results shows the efficiency of the simulation model and that this model can be employed for simulating the curvilinear motion of light commercial vehicles and assessment of their controllability and stability characteristics.
Elastomer elastic element visco-elastic properties’ impact on damping in a vehicle suspension
Authors: Stepanov E V , Ogorodnov S M , Orlov L N , Chegurov M K 
Published: March 2021

Abstract
Suspension structure, its elastic elements made of elastomers, is described in the paper. This allows to considerably decrease a vehicle’s unsprung weight improving its ride quality. The research is aimed at determining elastomer elastic element’s damping impact on a vehicle’s smooth ride quality. The impact estimate was carried out by comparing simulation modelling results of GAZelle NEXT vehicle’s front suspension and an equivalent suspension with an elastomer elastic element. Dual-mass single-axle suspension model was chosen as a calculation model. The modelling was performed in MATLAB/Simulink software package. Standard suspension key parameters, that is spring rate and shock absorber resistance characteristic, were experimentally obtained for each vehicle. Elastomer element elastic response was obtained at static necking and averaged with respect to loading and unloading characteristics. Damping capacity was estimated basing on the damped oscillations process realized on a special pendulum impact testing machine. “Relative” elastomer damping coefficient was calculated. All the measured parameters were reduced “awheel” by grapho-analytical methods. Vibration acceleration root-meant-square values (RMS) on the car frame and normal awheel response of a vehicle’s motion under various speed conditions over smooth cobbled road served as assessment criteria. Roadbed microprofile mathematic model was realized basing on superposition harmonic function method with various oscillations frequency and amplitude. Analytical findings reveal that a standard suspension with a cylindrical spiral spring and a hydraulic shock absorber outperforms the elastomer elastic element structure in all the given motion modes with respect to the ride quality criteria. The research findings bring about the conclusion that elastomers lack visco-elastic characteristics necessary to provide better ride quality compared to the standard suspension structure.
Features of macromodeling of small towns with a monostructured economy
Authors: Goncharov K O , Eliseev M E , Laschuk K V , Chikaev A O 
Published: March 2021

Abstract
The article discusses the features of a development macromodels of small towns with a monostructural economy. For a more accurate setting of the model, which will correspond to reality, the additional parameter “check in for a colleague at work” was taken into account when development a general origin-destination matrix(matrix OD). The model with this method was tested on the 2019 models and has a high convergence according to GEH statistics.
Predicting the durability of piston engine crankshafts
Authors: Gots A N , Amirseyidov Sh A 
Published: March 2021

Abstract
A method for testing crankshafts of automobile and tractor engines under the action of variable bending moment is proposed. The test machine consists of a frame on which the crankshaft is installed through elastic springs on the extreme root necks. On the extreme necks, pendulums are installed, one end of which is rigidly fixed, and at the opposite ends of the pendulums, two inertial (unbalanced) vibrators are installed, creating two equal forces in the horizontal plane, directed in opposite directions and changing their magnitude. This pair of forces creates a variable bending moment relative to the axis of the crankshaft, acting on all its elements, and causes fatigue failure in the weakest sections. Based on the test results, a graph is plotted in the coordinates of maximum stress – the number of loading cycles before failure, which allows you to determine the parameters of the crankshaft fatigue life model.
According to the corrected linear hypothesis of fatigue damage accumulation, shaft failure occurs when the sum of accumulated damage is equal to a certain value, which is determined by the results of fatigue tests.