bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of forecasted values of specific norms for the issues of produced products in industrial enterprises
Authors: Rakhmonov I U , Tovbaev A N , Nematov L A , Sh Alibekova T 
Published: May 2020

Abstract
This article discusses the issues of determining the predicted values of rationing the power consumption of industrial enterprises. For a certain pattern of change in power consumption and specific power consumption, hourly productivity was studied, which determines the performance of units. On the basis of the predicted values of the output volume, the norms of energy consumption were developed, which are reflected taking into account its specifics, the energy intensity of the products. In developing the norm, the calculation method was adopted based on the analysis of static data for a number of previous years on actual energy consumption, the volume of output of factors affecting their change.
Theoretical research and development optoelectronic communication devices
Authors: Kh Abduraimov E , Kh Khalmanov D , Nurmatov B A , Dusmukhamedova S A , Khamidova N E 
Published: May 2020

Abstract
Nowadays, with the wide automation of production processes and the introduction of automatic control systems, the requirements for the creation of contactless electric devices have substantially increased. The development of power semiconductor electronics allows the solution of complex technical problems aimed at improving the efficiency of electrical devices. The leading role in this direction is given to optoelectronic devices and thyristor devices, which provide contactless switching processes and galvanic isolation, and have improved transient and frequency characteristics The article deals with the creation of compact, reliable, highspeed optoelectronic contactless voltage relays with an extended service life, combining a sensitive system and a powerful actuator having a sinusoidal shape of the voltage curve at the load. Theoretical, experimental studies and the principle of operation of an optoelectronic contactless voltage relay with time delay are given.
Electrical testing of small-series multi-chip microcircuit samples combining Wire Bond and Flip-Chip technologies
Authors: Kirienko D A , Yu Ershova N , Putrolaynen V V , Lunkov P V , Marcinkevich K R 
Published: May 2020

AbstractThe paper provides a technical solution and methodology for conducting automated electrical and functional testing of small series samples of multi-chip assemblies. The results of multi-chip assembly samples testing combining Wire Bond and Flip-Chip technologies are presented. Based on the test results, defects that occur during the packaging process are localized and the assembly stages at which these defects occur are determined.
Magnetocaloric effect in polycrystalline cobalt
Authors: Urinov Kh O , Jumanov Kh A , Khidirov A M , Kh Urinov S , Abdiyev J M , Jumaboyev T A , Eshmirzayev M R 
Published: May 2020

Abstract
The article discloses an experimental and theoretical study of the magnetocaloric effect in a uniaxial ferromagnetic crystal on the orientation phase transition. The proposed by authors method based on heat exchange in a layered structure, polycrystalline cobalt and a film of heat-sensitive material with metal-dielectric phase transition is promoted. The results of the experiment are made in accordance with the general expression for ferromagnets.
Methods to ensure durability and improvement of reliability of bridge cranes of General purpose during their operation
Authors: Akhtulov A L , Kirasirov M O , Kirasirov O M 
Published: May 2020

Abstract
The paper notes that lifting and transport machines are an integral part of any type of production, since they serve all types of technological processes. Cranes greatly contribute to the smooth operation of the process equipment, so ensuring the quality and increasing the productivity of the crane equipment allows you to improve the performance of the process equipment. The directions and possible ways of improving the designs of General-purpose bridge cranes to increase the durability and improve the reliability of their operation are considered. The main reasons for the need to upgrade bridge cranes in operation are given. The analysis of the main principles of crane equipment modernization is given. The issues of modernization of load-lifting bridge cranes in order to increase productivity, ensure structural improvement, safety in operation, and technical and economic efficiency are considered. To determine the degree of manufacturability of the design, indicators are proposed, for which the classification according to the main evaluation criteria is given. The economic assessment of the feasibility of modernizing the crane economy is given.
Mixing strategies in the matrix game
Authors: Assaul Victor N , Lashchenov Vladimir K 
Published: May 2020

Abstract
The article considers the sequential strategies mixing in the matrix game as an algorithm for finding the optimal player’s strategy. Strategies are mixed in such a way as to obtain a row of the payment matrix with constant elements. As a result, such a row is deleted as dominated, or determines the value of a game. The games with two moves of the second player, which are solved without the use of the simplex method, are analyzed at each stage.
The linear network coding optimization in hybrid ARQ/FEC system to counteract head-of-line blocking in queue
Authors: Britvin N V , Karpukhin E O 
Published: May 2020

Abstract
The problems of systematic linear network coding optimization and generic matrix generation methods are considered in this article. The most efficient generation method is a random matrix filling with prime numbers. A model of data transfer system was developed that allowed to assess the telecommunication system packet loss rate using various methods. The first method involves a packet loss rate calculation using the binomial distribution law. In order to find the optimal length of the information and coding sequences, the enumeration of the possibilities based on the calculation results is made. The optimality criteria are maximum code rate and minimum coding sequence length upon the condition that packet loss rate is zero. This method provides high accuracy and allows to quickly obtain a large number of optimal lengths of the information and coding sequences. However, the method cannot be modified to be used for the packet correlated loss calculation in case of the network overload and data transfer pending via wireless connection. The second method relies on the simulation models which allow to find the optimal lengths of the information and coding sequences using multiple test data transmission in the simulation environment with different characteristics (modulation methods, coding, channel models).
Problems of metrological support of methods for determining the corrosion rate of offshore platforms with insufficient source data
Authors: Starokon I V 
Published: May 2020

Abstract
Offshore stationary platforms are used in the extraction of resources on the shelf (oil, gas, coal, steel and etc.). Offshore platforms are exposed to corrosion, which can lead to the destruction of the structural elements of the platforms. To assess the value of corrosion losses, ultrasonic measurement of the wall thickness of platform elements is used, which gives an understanding of their actual wear. In some cases, there is no initial information on the wall thickness of the platform elements. The absence of this information does not allow the calculation of the corrosion rate of platform elements and the determination of its residual life. The article proposes a method based on probability theory, which allows you to calculate the initial wall thickness of the platform elements in the absence of initial data on the initial thickness.
Increasing the strength of welded thin-walled axisymmetric vessels made of corrosion-resistant steel
Authors: Vasechkin M A , Yu Davydov O , Egorov V G , Egorov S V , Matveeva E V 
Published: May 2020

Abstract
Structural elements of thin-walled vessels operating under internal pressure are mainly made from sheet blanks using welding operations. To reduce the negative impact of welds in the manufacture of thin-walled vessels, it is proposed to use separate calibration processes by compressing vessel parts with subsequent welding and their joint calibration by distribution and rotary rolling. Compression calibration ensures the accuracy of matching of the abutting annular edges of the vessel parts. During rotary rolling, the welds are simultaneously smoothed and the strength characteristics are improved due to plastic hardening caused by thinning and leveling the wall thickness of the vessel body. Based on the conducted research, technological recommendations have been developed for the manufacture of thin-walled vessels of increased strength from corrosion-resistant steels.
Monitoring and assessment of the state of floodplain ecosystems exposed to oil and gas complex wastes
Authors: Strizhenok A V , Fedorova A V 
Published: May 2020

Abstract
Formation of a huge amount of industrial waste is one of the most urgent problems of the mineral resource complex today. It accumulates on the surface of the Earth, disposed of by burning or stored in anthropogenic arrays, thereby providing a complex and lasting negative impact on all components of the natural environment. This problem is especially acute in regions with a high concentration of enterprises of the mineral resource complex. The results of a scientific study on monitoring the state of the floodplain ecosystems of the Ob River, as one of the most reliable indicators of the intensification of the anthropogenic load in the region, are presents in the article. The progress of the research and the results of computer processing of the data are described in the article in detail. In addition, comparative characteristics of the state of some species of plant communities over a three-year period are given.
Mapping distributions in the entropy-parametric space
Authors: Polosin V G 
Published: May 2020

Abstract
The paper discusses the possibility of approximate identification of asymmetric models in the space of information and probability signs of the sample data distributions. The paper contains a description of the features of the method for displaying asymmetric models in the entropy-parametric space of distribution signs. In particular a brief analysis of the shortcomings of the mapping of distributions in the space of parametric signs of asymmetry and kurtosis is given. For the construction a space of distribution signs, the author is proposed an entropy coefficient for asymmetric distributions that it is used as an independent interval informational estimate for observation sample data distribution. The material is illustrated by the example of a widespread family of generalized gamma distribution.
Multi-target method for small unmanned vehicles parameters remote determination by microwave radars
Authors: Kuptsov V D , Ivanov S I , Fedotov A A , Badenko V L 
Published: May 2020

Abstract
This article explores the properties of the multi-target method for small unmanned vehicles parameters remote determination by microwave radars, which allows to expand significantly the range of unambiguously determined speeds of unmanned vehicles. The reasons of occurrence of false targets and their number in the mode of the parameters simultaneous measurement for the set of unmanned vehicles are identified. Using a computer experiment in LabVIEW, the probability of the unmanned vehicles true parameters determination at various ratios of the signal to noise at the input of the radar receiver in multi-target mode was investigated.
Methodology for choosing navigation receivers capable of increasing the efficiency of metrological support for space infrastructure
Authors: Fomina A V , Batkovskiy A M , Sudakov V A 
Published: May 2020

Abstract
Using the space infrastructure as an example, a multi-criteria selection tool for navigation receivers was developed on the basis of scientifically substantiated fuzzy preference method. This task is an integral part of the bigger fundamental scientific problem aimed at improving the use of information provided by spacecraft to solve the most important problems of socio-economic development of Russia. Today, a large number of suppliers of these products are presented in the market. Given the interdisciplinarity, multivariance and complexity of the study of the problem under consideration, it is decomposed to a rational choice of navigation receivers of signals from global navigation satellite systems that allow working with GPS, GLONASS, as well as with sophisticated GALILEO and BeiDou systems. This is a multi-criteria challenge, the solution of which must be found in a complex information environment. Therefore, the selection of a specific supplier and model is a non-trivial task. The methodology of the study is based on the theory that the issues of state security, sanctions risks, consumer qualities and economic criteria are a part of an equation.
Improved random adaptive grouping approach for solving unconstrained LSGO problems
Authors: Vakhnin A , Sopov E , Panfilov I 
Published: May 2020

Abstract
Large-scale global optimization (LSGO) problems are emergent in many domains of applied sciences. LSGO is a hard challenge for the majority of state-of-the-art optimization methods. Evolution algorithms (EAs) combined with Cooperative Coevolution (CC) are able to perform well when solving many real-world LSGO problems. The grouping of variables at the problem decomposition stage has a significant impact on the performance of the CC approach. This study proposes an improvement of the previously developed random adaptive grouping (RAG) approach for CC. The new method is titled as RAG2, and the whole optimization algorithm, based on RAG2, is called CC-SHADE-RAG2. The influence of the choice of the population size and the number of subcomponents on the algorithm performance have been investigated using the IEEE LSGO CEC’2013 benchmark. The set of test problems in the benchmark contains fifteen functions with dimensionality equal to one thousand. We have also compared the performance of the novel algorithm with some EAs, which are applied for solving LSGO problems.
Increase in the repair period of laminate heat exchangers using the thermoelectric Pelletier module
Authors: Mukhametzyanov Z R , Kulakov P A , Rubtsov A V 
Published: May 2020

Abstract
The article sets the task of developing a method for increasing the overhaul period during operation of laminate heat exchangers. To solve this problem, the use of a thermoelectric module is proposed. The article presents experimental studies of the nature of heat transfer between two streams in a laboratory setup simulating a process on a plate heat exchanger. The experimentally substantiated dependences of the deposition value on the thermopower voltage indicators are obtained. Based on the obtained dependences, the possibility of developing a program for maintenance and repair of laminate heat exchangers is shown.
Determining safety limitations and the frequency of determining vessel location when establishing marine bases on the Vietnam’s sea areas
Authors: Nguyen T D 
Published: May 2020

Abstract
The article introduces the request of the International Maritime Organization (IMO) for accuracy of vessel position and the maximum interval between two consecutive ship positions. The author focuses on assessing the extent to which IMO’s requirements are met when planning a voyage, based on practical experience from himself and a number of other outstanding captains. At the same time, analyse theoretical and practical basis when making decisions about the limited distance to the danger point and the time interval between two determinations of consecutive ship locations to ensure maritime safety. The article builds the process of calculating and manipulating maritime routes to estimate safety through dangerous areas with full theoretical basis and practical seafaring experience.
Metrological and methodical support of evaluation of quality of spraying of fruit plantations
Authors: Apazhev A K , Shekikhachev Y A , Hazhmetov L M , Fiapshev A G , Shekikhacheva L Z 
Published: May 2020

Abstract
The crossing to intensive gardening development requires continuous improvement and deepening of sectoral and cross-sectoral specialization, development of innovative technologies and devices of mechanization in major technological processes. In the technological process of cultivating fruit stands, a special role is given to chemical methods of pest and disease control, which is realized by the use of various sprayers. To obtain high-quality fruit products, a significant amount of chemical means of protection is currently used due to the fact that 30 or more sprayings are carried out during one growing season. Bad spraying of plant protection products leads to environmental defilement. Therefore, the qualitative assessment of the technological and technical characteristics of the sprayer is an urgent problem.
Study of the influence of the degree of exhaust gas recirculation on the working process of a diesel
Authors: Lopatin O P 
Published: May 2020

AbstractTaking into account the consideration of methods for reducing nitrogen oxides (NOx) in diesel exhaust gases (EG), the use of exhaust gas recirculation (EGR) is justified. The influence of the degree of recirculation (ρ) on the performance of the diesel working process is studied. It is proved that EGR is an effective, economical and safe way to reduce the content of NOxin the EG of diesel, which simultaneously reduces the entire range of harmful substances emitted into the atmosphere of EG by reducing their volume.
Visual methods of high-level system design for digital hardware components
Authors: Khalzev S E , Vlasov A I , Shakhnov V A 
Published: May 2020

Abstract
The article presents an analysis of using xtUML for high-level design of very large-scale integrated circuits. A design flow of digital VLSI circuits was investigated. The focus was made on the formalisation of the digital circuit models at the initial stages of system design. We studied specific features of developing a digital circuits’ system model that includes the behavioural description and the environment of the system being developed. This makes it possible to show the interaction between the very large-scale integrated circuits and other hardware components or measurement objects. However, further transition from the system level to the lower level in the hierarchical decomposition reveals the problem of “semantic gap”, meaning the complexity of the automated interpretation and formalisation of the conditional “rectangles” of the visual model to the form which could be interpreted by the tools used at the low-level design stages. The use of visual methods of system design is effective in the development of modern and highly sophisticated systems on a chip. We analysed xtUML diagrams at the system level of the digital very large-scale integrated circuit projects and formulated the procedure of using xtUML for developing digital VLSI circuits’ system models.
Comparative analysis of the fatigue characteristics of repaired compounds of the “T” and “K” types of fixed offshore platforms
Authors: Starokon I V 
Published: May 2020

Abstract
The study of the fatigue characteristics of repaired welded joints is an important task to determine their remaining lifetime. At present, there is no methodology that allows calculating the resource of reconditioned welded joints; therefore, industrial safety experts use the diagrams and fatigue equations given in the normative documentation for new joints when extending the resource. It is also not established whether there is a difference in fatigue characteristics depending on the type of pipe joint “T” or “K”. In this regard, the authors conducted research during which a new welded joint was brought to primary failure, and then repaired and brought to repeated failure. Based on these experiments, graphs were constructed that describe the dependence of the number of cycles on the values of the amplitudes of the alternating stresses and a mathematical equation was obtained that describes the fatigue parameters for both “T” and “K” types of welded joints.
Determination of Newtonian fluid viscosity and design constants of a rotary viscometer
Authors: Kondrashov I P , Pavlova P L , Kondrashov P M 
Published: May 2020

Abstract
In this paper the problem of determining the viscosity coefficient of a Newtonian liquid for the development of a rotary viscometer considered. The least squares method is proposed to be used for processing the measurement results. Conversion factors of electric sensor readings are proposed. The calibration instrument is designed to calculate the conversion coefficient of the torsional moment to current of the sensor. The proposed formulas are useful for developing an algorithm for calculating a rotary viscometer with more accurate processing of measurement results.
Improvement of the plane-parallel movement of the attachment of the feller-bunchers machine LP-19
Authors: Bogdanov E N , Egorov A V , Polyanin I A , Lysyannikov A V , Kaizer Yu F , Zelykevich R B , Kuznetsov A V , Matkerimov T Y 
Published: May 2020

Abstract
This paper presents a mathematical model of the articulated manipulator feller-bunchers machine LP-19 (FBM LP-19) and allows you to identify the laws of motion of the boom, the stick and stand feller-bunchers head (FBH) depending on the volume of the working fluid in the hydraulic cylinders drive the boom and stick. Based on the results of mathematical modeling, a method and means for controlling the trajectory of the stick, arrow, and FBH with one complex control device that provides the movement of the FBH close to the plane-parallel one. The dependences of the position of FBH in the vertical plane of the boom and stick were established using the developed integrated device and without it. It has been experimentally established that the use of the developed integrated control device firstly reduces the time of the aiming operation of the FBH (changing the horizontal outreach) and secondly, the average production time of unit of wood is less than that of the base machine, which allowed increasing the productivity of the FBM compared to the base one.
Develop of reconfigurable manufacturing plant
Authors: Gurjanov A V , Shukalov A V , Zakoldaev D A , Zharinov I O 
Published: May 2020

Abstract
A scientific problem is how to develop automatically self-reconfigurable manufacturing plant. Self-reconfigurable manufacturing plant is a set of detailed descriptions in the level of plant models reconfigurable manufacturing systems (RMS) and RMS connection structure, which is sufficient to develop technically a plant. Primary components are described, which are necessary to create specialized system of a self-reconfigurable manufacturing plant automatic developing, which is done in the software. There is a functional scheme of manufacturing process in automatic mode for a device in a plant. There is a functional scheme of the self-reconfigurable manufacturing plant automatic developing route equipped with RMS.