bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of leasing efficiency for the lessor
Authors: Kirillov Yu V 
Published: September 2020

Abstract
The article analyzes the conditions under which the economic activity of a leasing company as a necessary link between manufacturers of modern machine-building equipment and machine-building enterprises is cost-effective. Because the lessor can simultaneously act as the lessee or purchaser of equipment from a manufacturer on the one hand, and as the lessor of this equipment for machine-building enterprises on the other hand, analysis of the effectiveness of its activities carried out in the form of efficiency of financial inflows and outflows of the tenant and the landlord as an investment project. Economic and mathematical analysis of lessor’s net present value was carried out for four variants of such a project: there are two variants when the lessor acts as a lessee and lessor, as well as a purchaser and lessor when using equity, and two similar variants when using loan capital. As a result, quantitative ratios are obtained that determine the economic conditions for the effectiveness of the lessor’s activity as a necessary intermediary in the machine-building industry.
Features addition and dimensionality reduction in classification
Authors: Petrusevich D A 
Published: September 2020

Abstract
In the paper additional features are constructed in order to increase accuracy or other precision values in the original classification task. This technique is implemented vey often in a lot of machine learning tasks of various domains of knowledge. Usually the second degrees of source features and their products are used. But this process can be continued further to higher degrees. At the same time it increases dimensionality of tasks dramatically. The balance between the dimensionality problems and new features addition is discussed in the present work. The principal component analysis is used to reduce the dimensionality. These sequential steps allow to construct new space containing new features that depend from the source parameters non-linearly. The technique is discussed on the example of the heart diseases dataset. Also functional dependencies in the medical dataset are observed.
The innovative development of the mechanical engineering
Authors: Tazetdinova A S , Bayaskalanova T A 
Published: September 2020

Abstract
This article deals with the theoretical foundations and conceptual thesis of forming a strategy for innovative development of the machine-building industry enterprises. Various approaches of national and foreign authors to the definition of “innovative development” and “mechanism” are presented and analyzed. To identify the priorities of engineering enterprise innovative development, this research describes the main stages of forming a strategy for innovative development of the machine-building industry enterprises, taking into account regional innovation opportunities, which is based on a subjective and objective assessment of the state of innovative activity of industrial enterprises as well as identifying factors that stimulate and hinder the innovation process.
Efficiency of implementing the matrix management model in the enterprises of military-industrial complex
Authors: Ragozina M A , Anikina Yu A , Malanina Yu N , Yushmanova V A , Novoselsky N K 
Published: September 2020

Abstract
To assess the efficiency of implementing the matrix management model, the article analyzes the enterprises of the military-industrial complex of a specific region – the Krasnoyarsk territory. In the Krasnoyarsk territory there are several enterprises engaged in the production of military-industrial products. The article considers three of them, and namely the joint stock company “Information Satellite Systems named after academician M.F. Reshetnev”, the joint stock company “Krasnoyarsk Machine-building Plant” and the joint stock company “Scientific and Production Enterprise “Radiosvyaz”. The article postulates and declares that the matrix structure is the most effective for management and sustainable development of the enterprises.
Electronic engineering resources in charts and comments
Authors: Galkina A I , Grishan I A 
Published: September 2020

Abstract
This article is devoted to the analysis of electronic resources of mechanical engineering – mechanical engineering as a science, education and industry. The article is based on statistics of the joint Fund of electronic resources “Science and education” (Ofernio) for the period from 1998 to the present. The selection of information about engineering developments and statistical processing is carried out automatically by the collector_stat program developed by the authors of the article. Electronic resources of mechanical engineering are represented by technical universities of the country. Thus, the object of research Ofernio are technical universities. The subject of research is electronic resources of mechanical engineering. Research methods art statistical methods and content analysis.
Consensus achievement method for a robotic swarm about the most frequently feature of an environment
Authors: Petrenko V I , Tebueva F B , Ryabtsev S S , Gurchinsky M M , Struchkov I V 
Published: September 2020

Abstract
Decentralized multi-agent robotic systems have many advantages over centralized ones. Such systems make it possible to distribute computational and communication operations between all its elements, and are also more resistant to the loss of individual elements of a swarm, but they complicate the implementation of complex high-level tasks. An example of such a problem is the selection of one of the possible alternatives, in which the swarm must choose the most favorable solution from a list of possible alternatives. This paper proposes an algorithm for reaching a consensus for robotic swarms deployed in scenarios in which they can choose one of the two most common signs in the external environment. The proposed algorithm is based on the calculation of the measured features of the environment, as well as the distribution of this data between robots. The algorithm was tested using the ARGoS simulator.
A robust soft demapper algorithm for OFDM communication systems
Authors: Mityagin K S , Levchenko A S 
Published: September 2020

Abstract
In this article, we propose a noise-robust joint channel estimation and soft demapper algorithm for OFDM systems which is based on log-likelihood ratio calculation that taking into account multiplicative and additive error variance. The simulation results show that the proposed algorithm outperforms conventional techniques, such as LMMSE channel estimation about 1.1-1.8 dB in threshold signal-to-noise ratio in different wireless mobile channels.
Precising the evaluation of radio information system reliability characteristics based on the empirical failure distribution
Authors: Kartsan I N , Zhukov A O , Timoshenko A V , Perlov A Yu , Ryabchenko D V 
Published: September 2020

Abstract
For highly reliable radio information systems the failures are quite rare phenomena leading to critical decrease in functional characteristics. At the same time, failure distribution may be a subject to rather complex laws, which together with a lack of real data makes it difficult to evaluate the reliability characteristics of the product. Achieving high accuracy of reliability characteristics evaluation is possible due to constant updating the parameters of the radio information system reliability model based on experimental data on the technical condition of the product components starting from the stage of its development. In this case, it is possible to determine the reliability characteristics based on current data on the performance of radio information system components based on the empirical failure distribution function. In this article we propose an algorithm for transferring to an empirical distribution and counting the characteristics (mean time between failures) of radio information system reliability based on it.
Digital media inventory algorithm for long-term digital keeping problem
Authors: Solovyev Alexander V 
Published: September 2020

Abstract
The previously considered problem of long-term digital keeping involves a multi-faceted integrated approach to its solution. This article is devoted to the algorithmic solution to the problems of reliability and technological aging of digital storage media, as well as changes in the hardware and software storage environment that occur over the long-term digital keeping. The article provides a brief overview of digital storage media with an estimate of the terms of reliable guaranteed storage of data on them. The problem of changing the hardware-software environment for storing digital data, the cause of which is the limited life of the software and hardware of information systems, is considered. As an algorithmic solution to the problems presented for the problem of long-term digital keeping, an algorithm for inventorying digital media is proposed. Its main aspects and rules of practical application are considered. The connection with the previously proposed algorithm for controlling the authenticity of digital data is indicated. The article concludes that the proposed algorithm, tested by practice, will solve the problem posed in the article. In conclusion, the development prospects of the proposed algorithm are considered.
Comparison between integer splitting cipher and traditional substitution ciphers, based on modular arithmetic
Authors: Alhussain Amanie Hasn 
Published: September 2020

Abstract
The integer splitting cipher is a special mathematical method that is proposed by the author and it can be considered as a generalization of modular arithmetic operation. In this cipher, each plaintext character is replaced on the base of another integer number with a sequence of k integers (k-splitting level) by the usage of modular arithmetic, so this cipher can be classified under substitution ciphers that are used the modular arithmetic during the encryption process. In this article the main differences among splitting cipher and four traditional substitution ciphers, which are Caesar, Vigenère, Affine and Hill, will be listed and as a conclusion we can notice that the splitting method complicate the statistical and semantic restoration of the plaintext from the point view of an unauthorized user. Furthermore, the decryption process of the splitting cipher meets the goal of Chinese reminder theorem, which states that it can recover an integer from a unique set of its residues modulo, so a comparison is conducted to show the main differences between the integer splitting theories and the Chinese remainder theorem.
New iteration parallel-based method for solving graph NP-complete problems with reconfigurable computer systems
Authors: Kasarkin A V , Levin I I , Sorokin D A 
Published: September 2020

Abstract
The paper presents a method of creating parallel-pipeline programs for reconfigurable computer systems based on iteration paralleling for the solution of graph NP-complete problems, which is different from others for processing the irregular sets with the elements accessed not by their addresses (like in arrays) but by values, the names of vertices and the graph arcs. It shows that the new iteration-parallel method is more efficient than the layer-parallel method when the available computing resource and the size of the solved graphs increase due to the significant reduction of the commutation connections.
Building a model of information signal propagation in a real electromagnetic communication channel
Authors: Pichugin V N , Soldatov A A 
Published: September 2020

Abstract
Modern organizations are characterized by a large volume of various information, both electronic and telecommunications. Therefore, it is important to have high-quality access to switching nodes that provide access to all important communication lines. In Russia, where the distances between localities are huge and the quality of land lines leaves much to be desired, the best solution to this problem is the use of satellite communication systems. To date, a large number of methods for modeling satellite communication channels are known. According to the estimates of computational complexity of the above methods, the running time of the simulation algorithms remains unacceptable. There fore, it is relevant to develop new modeling methods that differ from the known methods that have these estimates with their practical reduction. The main result of the research can be formulated as the development of qualitatively new methods for modeling the satellite communication channel, which will allow us to more fully consider the electrodynamic picture of signal propagation in the channel, take into account all errors and correct them in the future when designing a real channel. The developed models will allow us to evaluate the noise immunity of the signal in the channel, investigate the signal-to-noise ratio, effects in the troposphere and ionosphere during signal transmission, and solve the problem of signal propagation delay.
Bio-inspired information technology for multi-version design of highly reliable software systems
Authors: Kovalev I V , Kovalev D I , Testoyedov N A , Voroshilova A A , Kuznetsov A S , Koltashev A A 
Published: September 2020

Abstract
The main result of the research is the creation of a new model of multiversion design of highly reliable software systems, which allows taking into account the real-time mode in the operation of programs that are part of reliability critical applications. The problem of multiversion design of the highly reliable software systems is presented in the form of the well-known problem of covering the set, which made it possible to use bioinspired algorithms, in particular, ant colony algorithms, to solve it. The decision rule of the ant colony algorithm has been modified, which provides support for the implementation of bioinspired information technology, taking into account changes in the structure of the software system in real time. The proposed model and the performed modifications of the ant colony algorithm are the basis for the creation of new tools that implement software and algorithmic support for the effective multiversion design of the highly reliable software systems in real time.
The application of relational interactive logic to build logical triggers in event-driven systems
Authors: Kuzmin O V , Naumov D A , Zakharov D V 
Published: September 2020

Abstract
The paper proposes an approach to the building of logical triggers in event-driven systems using relational interactive logic. In general, a trigger is viewed as a system of logical equations and inequalities. The solution of the system, carried out by the execution of a SQL query, is the main one for the formation of alert or targeted notifications or for changing the parameters of the control action within a specific system. To automate the described approach, an example of a modular scalable architecture of an information system is proposed. It provides the creation of triggers based on systems of logical equations and inequalities, as well as their verification of their implementation within one or more data domains
An ontology-based knowledge representation in the field of cognitive functions assessment
Authors: Murtazina M S , Avdeenko T V 
Published: September 2020

Abstract
Ontology-based knowledge representation techniques are used today as well-proven tools supporting decision making. The paper proposes OWL ontology which accumulates knowledge about cognitive functions and methods for assessing cognitive functions. A brief overview of using the ontologies capabilities for representation of knowledge about cognitive functions assessment methods is given. An idea of the structure of ontology is presented. A certain set of class expression axioms and object property axioms also are given. The ontology is implemented in the Protégé 5.2 environment.
Client-server application framework based on an object-oriented network model
Authors: Romanov E L , Troshina G V , Menzhulin S A 
Published: September 2020

Abstract
The relationship between the business layer and the underlying data access layers is considered. The disadvantages of the traditional approach based on the relational database and the data access layer (DAO/ORM) are analyzed. A document-oriented database with built above it an object-oriented network model of data presentation is proposed. The integration with the business layer, automatic assembly of business objects using Java reflection without additional specifications, polymorphic storage and transfer of business entities in collections of the document-oriented database is supported.
Self-organizing technology for substantiating the properties of strength reliability of complex mechanical systems
Authors: Berman A F , Nikolaichuk O A 
Published: September 2020

Abstract
The issue of ensuring strength reliability remains relevant due to the insurmountable imperfections and/or violations of methods and means of its provision at all stages of the life cycle of Complex Mechanical Systems. The uncertainty of some properties of strength reliability leads to catastrophic failures. To improve the efficiency and quality of the substantiation of properties, we developed a self-organizing information processing technology based on the interaction of logical heuristic procedures. We also identified the main uncertainties and the method for their acceptable neutralization based on additional expert information.
Influence of different components of data error on the result of solving identification and approximation problems
Authors: Zhitnikov V P , Muksimova R R , Sherykhalina N M , Zhitnikova N I 
Published: September 2020

Abstract
The dependences of approximation and identification errors for solving problems of approximation of functions associated with the presence of various components of data errors in the numerical solution are investigated. Using the study of problems that have an exact solution, we found patterns of increasing errors associated with rounding numbers and conditionality of the matrix of the equations system. It is shown that the error of identification (finding the coefficients of representation of the desired function as the linear combination of the basic ones) can be significantly greater than the error of approximation, despite the fact that the second one was estimated using crude values of the coefficients. The found dependencies limit the accuracy of the solution for approximation of other functions. Artificial distortion of the original data by random error is applied. It is shown that the identification error increases rapidly with increasing degree of approximation polynomial and significantly exceeds the amount of distortion. It is also shown that an increase in the number of specified points leads to a decrease of identification and approximation errors caused by random perturbation, inversely proportional to the number of points. Using examples of approximation of various functions, it is shown that the result of approximation, and especially identification, significantly depends on the convergence of the Taylor series (or its absence) on the segment under consideration.
An experimental research of the ultra-wideband pulse propagation in a transdirectional coupler based on coupled striplines
Authors: Malyutin N D , Trenkal E I , Sychev A N 
Published: September 2020

Abstract
The propagation of short picosecond pulses in coupled strip lines with a phase velocity ratio of odd and even modes of 3:1 is considered. The feature of the separation of the input pulse between the three output ports without significant loss of energy due to reflection from the input in transdirectional couplers based on coupled strip lines is experimentally shown. As a result of the analysis, it was found that the spectral components of the pulse are separating between the ports of the transdirectional coupler.
The antenna system with signal polarization separation
Authors: Konovalenko M O , Sokolov V V , Trenkal E I , Malyutin N D 
Published: September 2020

Abstract
The results of the study of the electrical characteristics of the waveguide-coaxial structure of the polarization separator (orthoplexer) loaded by the waveguide irradiator under the influence of harmonic radiation in the frequency band and pulse signal are presented. The antenna system is designed to study partially-non-reciprocal backscattering of electromagnetic waves.
Innovation technologies and practical engineering solutions for smart city development
Authors: Proskurnin S D , Belyakova G Ya 
Published: September 2020

Abstract
The work is devoted to the analysis of innovative technologies and practical engineering solutions in justifying and assessing the impact of digital transformation of small towns on the quality of life of its citizens. The article reveals the features of digitalization of small cities and defines its main directions. The analysis of trends and directions of the digital economy development in Russia was carried out and the need of small towns in digital services was investigated. The elements of the directions of digital transformation are reviewed and described and its impact on the quality of life of citizens is substantiated. The main tasks of the development and implementation of the “Smart City” were identified and recognized on the example of the closed administrative-territorial formation “Zheleznogorsk”, Krasnoyarsk Territory. It is concluded that the digital transformation of cities and the development of new forms of public self-government will allow the formation of an environment and an active community capable of solving the strategic tasks of the municipality. In the conclusion, it was noted that the main tasks for the development of the directions for creating the Smart City project are the transition to platform solutions, the transfer and storage of data in cloud structures, the development of uniform technological regulations for access to data and the creation of additional services on their basis. In the future, the expansion of the range of services and an increase in the number of users can give an economic effect, ensuring an increase in the investment attractiveness of the territory, and the strengthening of economic ties between business entities.
Studying the switching order for a three-wire structure with modal reservation after failures
Authors: Medvedev A V 
Published: September 2020

Abstract
The paper considers a quasistatic analysis of the ultrashort pulse propagation was performed in a three-conductor structure with MR in a 50 Ohm path. The sequential faults of two types were considered: a short circuit (SC) and an open circuit (OC). It is shown that if the probability of which type of failure is greater is not known, then it is preferable to choose the middle active conductor before failures, since of all the options for failures, its maximum amplitude is less than that of the edge active conductor, and is 58 % to half of the EMF. If a failure of only one type (either OC or SC) is possible, then the preferred switching option after failures of the SC type is with the middle active conductor before failures, and after failures of type OC, it is option 2 with the edge active conductor before failures, since after failures the maximum amplitudes are less and are 58 and 50 %, respectively.