bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prospects for design and construction development of integral circuits of LC–filters based on the modern dielectric materials
Authors: Budyakov A S , Cherckesova L V , Titov A E , Shokova Yu A 
Published: January 2021

Abstract
An analysis of design and technological solutions related to the production of integrated microwave filters based on modern materials - liquid-crystalline polymers (LCP) and low-temperature ceramics (LTCC) is considered. An important factor in the design of integrated filters based on multilayer printed circuit boards is the limited choice of designs for inductive and capacitive elements. It is proposed to use dielectric materials with more stable parameters and a wide range of operating frequencies (LCP up to 20 GHz, and LTCC up to 40 GHz). The results of comparison of the manufacturing process of microwave filters based on LCP and LTCC technologies are shown. One of the possible schemes and designs of a bandpass filter with a cut-off frequency of 2.9 GHz, a bandwidth of 500 MHz, and an insertion loss of about 1 dB is demonstrated. Experimental characteristics based on computer simulation of the microwave filter are presented. It is concluded that the use of LTCC-technology is preferable for solving the problem of microminiaturization of microwave filters, and the use of LCP-technology is expedient for creating narrower-band filters intended for operation in a higher frequency range of microwave filters.
Analysis of the relationship between the choice of the color model for the representation of images and the efficiency of solving the problem of improving the image resolution
Authors: Veremeev D N , Obukhov P S , Kislov K V , Gladkih D I 
Published: January 2021

Abstract
The article discusses the influence of the choice of a color model for representing a raster image on the efficiency of increasing its resolution using an artificial neural network. The article begins with the essence of the research. After that, the process of obtaining for training networks with an identical topology of a dataset using different color models of image representation, namely RGB, HSV, L * a * b *, NTSC and YCbCr, is described. After that, an assessment of the effectiveness of trained neural networks on the previously described datasets is given. To assess the performance of an artificial neural network, two algorithms are used: SSIM and PSNR. As a result of the assessment, the networks using RGB and YCbCr color models showed the highest results. At the end of the article, there are reflections on the reasons for this result.
Improving the precision of the selection of piecewise linear useful signal component under conditions of a priori uncertainty
Authors: Shrayfel I S , Marchuk V I , Mihailov A B , Malcev I M , Fisunov A V 
Published: January 2021

Abstract
The paper is devoted to the analytical substantiation of a new approach to the processing of signals representing a collection of some piecewise linear signals under conditions of a priori uncertainty about its parameters. The results of computer simulation fully confirm the main theoretical results and allow us to conclude that the new method is highly efficient in processing piecewise linear signals under conditions of a priori uncertainty about the useful signal function and the statistical characteristics of the additive noise component. The developed method makes it possible to reduce the dispersion of the additive noise component up to 10 times, however, as the dispersion of the noise increases, the efficiency decreases.
RETRACTED: Analysis of the dynamic growth of the hazardous industry development index and ways to reduce industrial accidents
Authors: Kostrov A , Staseva E , Molev M , Kokun’ko I , Merenkova N , Kobzev K 
Published: January 2021

Abstract
Labor protection is a system of ensuring the safety of life and health of workers in the process of work, including legal, socio-economic, sanitary and hygienic, psychophysical, treatment and prophylactic, rehabilitation and other measures. The functions of labor protection are the study of sanitation and occupational hygiene, the implementation of measures to reduce the influence of harmful factors on the body of workers in the process of work. The main method of labor protection is the use of safety measures. At the same time, two main tasks are solved: the creation of machines and tools, when working with which the danger to humans is excluded, and the development of special protective equipment that ensures human safety in the labor process, as well as training workers in safe working practices and the use of protective equipment, conditions are created for safe work.
The main goal of improving working conditions is to achieve a social effect, i.e. ensuring labor safety, preserving the life and health of workers, reducing the number of accidents and diseases at work.
Improving working conditions also yields economic results: an increase in profits (due to an increase in labor productivity); reduction of costs associated with compensation for work with harmful and difficult working conditions; reduction of losses associated with injuries, occupational morbidity; decrease in staff turnover, etc. The main document in the normative and technical documentation is the normative act “Occupational safety standards system”.
RETRACTED: Dynamic analysis of industrial injuries with the participation of the country’s young population. Comparison of indicators
Authors: Kostrov A , Stuzhenko N , Babenko L , Eroshenko A , Larin D , Kobzeva N 
Published: January 2021

Abstract
Labor protection is a system of ensuring the safety of life and health of workers in the process of work, including legal, socio-economic, sanitary and hygienic, psychophysical, treatment and prophylactic, rehabilitation and other measures. The functions of labor protection are the study of sanitation and occupational hygiene, the implementation of measures to reduce the influence of harmful factors on the body of workers in the process of work. The main method of labor protection is the use of safety measures. At the same time, two main tasks are solved: the creation of machines and tools, when working with which the danger to humans is excluded, and the development of special protective equipment that ensures human safety in the labor process, as well as training workers in safe working practices and the use of protective equipment, conditions are created for safe work.
Influence of spatial structure of the field on a signal-to-interference ratio in communication systems with spatial signal separation
Authors: Okorochkov A I , Dmitrienko N A 
Published: January 2021

Abstract
This article presents research results of the signal-to-interference ratio dependence (S/I) on the spatial structure of the radiation field of a three-element linear sparse antenna array in communication systems with spatial signal separation. As a result of the research, it was stated that when the receiving linear antenna is located in the region of the zero order maximum of the field of the useful signal, the formation of the S/I ratio does not depend on whether the field distribution is considered on a straight line or on a circular arc. The location of the receiving antenna in the region of the first-order maximum of the field of the useful signal gives the best results in the formation of the S/I ratio if the field distribution is used on circular arc and not on a straight line.
Image reconstruction using the modified texture synthesis algorithm
Authors: Ibadov R R , Gapon N V , Ibadov S R , Kucheryavenko S V 
Published: January 2021

Abstract
The article discusses a method for image reconstruction based on the search for similar blocks using a texture synthesis algorithm. The effectiveness of the new approach is shown using several examples for various areas with lost pixels. The subject of the research is methods and algorithms for processing space-time reconstruction of two-dimensional signals based on a geometric model of images. The object of research is a set of test static images. The result of the study is a modification of the image reconstruction method based on the search for similar blocks in order to reduce the error in image reconstruction. The novelty of the work is an algorithm that improves the quality of image restoration. The results obtained make it possible to reduce the root mean square error.
Improvement of the Human Action Recognition Algorithm by the Pre-processing of Input Data
Authors: Zhdanova M M , Balabaeva O S , Voronin V V , Semenishchev E A , Zelensky A A 
Published: January 2021

Abstract
The paper presents an approach to recognizing human actions using an additional preprocessing stage of input data. The growing volumes of video information do not always allow support the quality of data at a high level; this can cause limitations in the further processing of digital data. In this regard, it becomes urgent to introduce an additional stage of image enhancement into the algorithm for recognizing actions in video. The proposed method includes three main steps: image enhancement, constructing a descriptor, and classification. The presented image enhancement stage is based on the combined local and global image processing in the frequency domain. The basic idea in using local alfa-rooting method is to apply it to different disjoint blocks with different sizes. To solve the problem of constructing a descriptor, a three-dimensional microblock dense difference (3D DMD) algorithm is used, which provides a highly oriented representation of image regions by tightly capturing microblocks within each region in several orientations and scales. 3D DMD has several advantages over other methods: higher efficiency compared to existing methods; minimal computational costs when using an integrated image; low dimension; ease of implementation; does not require settings. The presented modification allows to increase productivity by 2-4%.
Review of subjection between ANN topology and it’s efficiency in solving the problem of improvement image resolution
Authors: Kislov K V , Veremeev D N , Obukhov P S 
Published: January 2021

Abstract
The article discusses the influence of ANN topology on its efficiency in solving the problem of increasing the image resolution. An empirical approach is used to establish the fact and determine the nature of the influence. At the beginning of the article, the most commonly used topological techniques for constructing an ANN, which are used to solve the problem of increasing the image resolution, are described. Then, the process of creating an ANN is described based on the above topologies. After that, the learning process of ANN is described. A supervised learning algorithm was used to train the networks, and a set of 7 000 images was used as training data. At the end of the article, an assessment of the efficiency of the trained ANN is carried out, through which the effectiveness of topological solutions is determined. To assess the performance of an artificial neural network, a validation dataset of 100 image is used. Two algorithms are used to assess the quality of enhanced images: SSIM and PSNR. The interpretation of the results obtained is also given.
Prooxidant activity as a criterion for the hazard class of biogenic preparations
Authors: Seregin M , Ozeryanskaya V , Lazurenko R 
Published: January 2021

Abstract
The presence of various pathogens in municipal wastewaters and the prevention of large-scale invasions is one of the acute problems of modern ecology. Reducing the load on the ecosystem and capital costs during the disinfection of wastewater, their sediments and soil from various pathogens (for example, helminth eggs) is one of the most important tasks of modern ecology. The most successful solution is the use of recycling technologies to obtain reagents that do not require preparation of the disinfection object and subsequent additional treatment. The production of biogenic preparations from agricultural waste (potato seedlings Solanum tuberosum) is low-cost and does not require complex equipment. However, the effect on various links of metabolism, in particular, the effect on free radical processes and lipid peroxidation in the cell, has not been studied enough, which does not allow us to speak about the toxicity of the drug and its effect on the ecosystem of the disinfected object. The study of the prooxidant activity of raw materials for the production of biogenic preparations) in standard model systems of biochemical studies (human erythrocytes) will allow to establish the hazard class.
Fundamentality of methods for optimizing the protection of the road transport system in mountainous conditions, as a dynamic system
Authors: Kortiev L I , Kortiev A L , Vaneev S D , Olisaeva O V , Kulumbegov R P 
Published: January 2021

Abstract
The life cycle of a road in mountainous conditions, as a complex dynamic system, is fundamentally different from the plain. The comparison issues in terms of work technology and road safety are completely incompatible.
In the same system, the methods for optimizing safety problems are incompatible, as the road transport system on the plain is almost in a static position, and it turns into a complex dynamic systemin mountainous conditions, from the impact on it of slope phenomena such as mudslides, landslides talus and avalanche-glacial (ice) are referred to in the literature this time as surface or exogenous processes. The qualitative indicators of these mutually influencing factors are under investigation.
Faced with a multitude of terminological varieties, in order of discussion, it would be correct to call them “Slope phenomena”.
Depending on the location of the centers of development of slope phenomena and their impact on the road to the axis of the road, they transform the road transport system into a complex dynamic system from a static state. Slope phenomena on mountain roads are a big problem and the optimal safety solution from each type of impact on the road is of current importance, as generally theoptional safety is ensured in a complex dynamic system in mountain conditions.
Influence function as a metrological characteristic of the digital pressure meter
Authors: Stepanov M S , Sorochkina O Yu , Kirimova K V , Koshliakova I G 
Published: January 2021

Abstract
The influence of external factors and uninformative parameters of the input signal on the measurement results was evaluated. The main metrological characteristics of the digital pressure meter IDC-2-Micro are given and the design features of the pressure measurement system are described in its example. The principle of operation of a strain-resistant pressure sensor is considered. As a result of their deformation, the output voltage of the bridge is generated, which is proportional to the measured pressure. External factors that have the maximum impact on the metrological characteristics of the pressure meter were selected and the limits of their values were set. 8 factors were identified: ambient air temperature and the measured medium, changes in operating overpressure, ambient humidity, vibrations, frequency of the supply voltage and fluctuations in its values, the presence of an external electromagnetic field. A plan for a factor experiment to evaluate the influence function has been developed. When studying the influence of various factors, including their pair interactions, on the parameter under study using the random balance method, a type of regression equation is proposed. When studying the influence of various factors, including their paired interactions, on the parameter under study, the method of random balance was used.
Self-optimization of mobile robot actions using voice commands
Authors: Izyumov A I , Vasilyeva E V , Alentsov E A , Ostapovich O S 
Published: January 2021

Abstract
Annotation. In most cases, multifunctional robots used both in industry and in the home environment to facilitate human labor have a common problem, which is a lack of autonomy and self-learning. This does not mean that it is impossible to implement self-learning within the operation of these machines, but most often such technical units function according to a specific algorithm, without deviating from its principles, even if this may lead to better results. First of all, a clear adherence to the program, in accordance with the acceptable quality of the final result, is put at the forefront. However, when working with technical units that do not depend on clear industrial or household algorithms, it is allowed to use an individual approach to the implementation of management processes. This work is devoted to the construction of the concept and principles of implementing voice control of a mobile robot for performing movement tasks.
Set-theoretical approach to finding the range of possible values of the size of a group of objects in a situation of multiple indistinguishability
Authors: Zolotukhin V F , Matershev A V , Podkolzina L A 
Published: January 2021

Abstract
In situations where it is not possible to timely use new methods for assessing hazardous objects, traditional methods of risk assessment can be supplemented with new methods based on possible assessments of objective primary information. Evaluation of the destructive capacity and consequences of the use of high-risk systems becomes increasingly important as their structural and functional complexity grows.
Despite the existence of the considered works on certain aspects, the known approaches to the consideration of the problem of indistinguishability of influencing factors are characterized by limited functionality. These capabilities do not fully provide the required level of reliability when making management decisions. In view of this, the problem of predicting equipment failure caused by an unfavourable coincidence of circumstances due to the indistinguishability of the initial data is one of the urgent tasks of risk management. Its solution is of significant theoretical and practical interest for many complex heterogeneous dynamical systems. The paper deals with a problem from the field of probabilistic modeling. The relevance of the performed research lies in the fact that the existing methods for predicting equipment failure in systems of potentially hazardous objects do not take into account the causes of accidents that occurred due to unfavourable circumstances.
The aim of the work is to develop a method for the set-theoretic modeling of the occurrence of problems with equipment due to an unfavourable coincidence of circumstances, which provides a range of possible values for the size of a group with a given composite very dangerous sign. To achieve this goal, the following tasks are solved:
– finding the range of possible values of the number of groups of objects modeled by the intersection of indistinguishable sets and finding the range of possible values of the number of groups of objects modeled by the union and the difference of indistinguishable sets;
– finding possible values of the number of groups of objects modeled by an arbitrary composite property and generalization of the problem, features of the set-theoretic apparatus of its solution.
In the course of the study, it was found that a set of objects with a compound very dangerous feature of an arbitrary type can be associated with a set representing the union of intersections (intersection of unions) of sets of objects with simple features and their complements. Moreover, the operations of intersection, union, and complement constitute a complete set of operations for the most common version of Boolean algebra of sets.
The use of lighting techniques for rapid remote determination of moisture content of sunflower seeds growing in the fields
Authors: Litvishchenko V L , Dimitrov V P , Leshcheva O A , Gritsay I P 
Published: January 2021

Abstract
The method is proposed and the ability to perform rapid remote determination of the moisture content of sunflower seeds using millimeter – range microwave radiation is experimentally investigated. A laboratory experimental setup for measuring the reflection coefficient of electromagnetic waves from sunflower inflorescences in the frequency range of 25.86 – 37.5 GHz has been created. Experimental studies of the value of the reflected signal from sunflower inflorescences on both sides of the plant were carried out in order to create a mathematical model that takes into account the difference between the reflected signal from the inflorescence side with sunflower seeds and the reverse side. Experiments were conducted for inflorescences of maturity different degrees.
Improving the dynamics of information flows for optimizing telecommunication systems
Authors: Evstafiev V V , Rudenko N V 
Published: January 2021

Abstract
The article considers the problem of optimization of telecommunication systems based on improving the dynamics of information flows. This task is formulated on the basis of a systematic approach, which consists in the fact that a multidimensional indicator is chosen as a system indicator, taking into account not only the connections of elements, but also the degree of use of these connections in the functioning of the network. This allows you to distribute information flows by changing the elements of the route matrix in the model of an open queuing network in order to optimize the system. It is shown that it is expedient to solve the optimization problem by applying the developed algorithm for the general solution of the problem. Algorithm procedures for the dynamics of information flows imply the transfer of part of the load of the elements that are bottlenecks to other elements of the system. The performance of the algorithm is confirmed by an example.
Analysis of BER for optical transmission link using commercial fibers with and without dispersion compensation
Authors: Singh Kuldeep , Mittal Dhruv Aditya , Priyamvada  
Published: January 2021

AbstractIn this paper, an optical transmission link at 10 Gb/s is experimented with Non -Return to -Zero (NRZ) modulated input source with the help of OptSim-software. The performance of the system has been measured in terms of BER for optical link developed using various types-of-fibers at reference loss and wavelength of 1550 nm along with dispersion and nonlinearities whose tolerances have been assessed up to 400 kms. Results have been obtained and compared by considering the impact of second and third order dispersion terms with and without dispersion compensation for different fibers. It has been observed that DS_Anomalous (DSA) fiber shows the best practical results with 10‒10BER value at 246 kms of transmission -distance without dispersion compensation and 340 kms with dispersion compensation.
Performance Evaluation of Diverse Hybrid Pulse Width Reduction Modules in WDM systems
Authors: Aggarwal Shivin , Garg Nidhi , Kaur Gurpreet , Madhu Charu , Singh Preeti 
Published: January 2021

Abstract
Long reach wavelength division multiplexing (WDM) systems are required to cater the remote locations and to cover the maximum distances. Dispersion is prominent factor for distance limitation and should be addressed with high efficiency as well as using low cost pulse width reduction (PWR) modules. In this research work, hybridization of different PWR is proposed such as FBG-DCF, OPC–DCF (optical phase conjugation), FBG-DCF-OPC to analyse the PWRE and total cost of the modules. Further, in order to get optimal hybrid PWR module and amplification unit, different optical amplifiers are also investigated at 10 Gbps over 300 km. An ultra dense WDM system with 25 GHz channel spacing using 32 channels is demonstrated and PWRE is analysed using different hybrid PWR modules. Results revealed that FBG-DCF having least cost with PWRP of 55%, OPC-DCF show PWRE of 45% with moderate cost, and FBG-DCF-OPC provide maximum PWRE of 70% with little bit higher cost. Performance sequence of investigated PWR modules is give as: FBG-DCF-OPC (70% PWRE)> FBG-DCF (55% PWRE)>OPC-DCF (45% PWRE)> and performance of amplification unit with FBG-DCF-OPC is depicted as EDFA>RFA>SOA). This module can be used in passive optical networks for long reach systems.