2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)最新文献

Human Thermoregulation System: Research of Heat Transfer Processes in Zero Gravity 人体体温调节系统:零重力下传热过程的研究

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647503

I. Khromova, E. V. Belyaeva, Elizaveta P. Chushkina, Elizaveta S. Gagarkina

{"title":"Human Thermoregulation System: Research of Heat Transfer Processes in Zero Gravity","authors":"I. Khromova, E. V. Belyaeva, Elizaveta P. Chushkina, Elizaveta S. Gagarkina","doi":"10.1109/apeie52976.2021.9647503","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647503","url":null,"abstract":"This article discusses the issues of modeling and calculating thermal processes in the human thermoregulation system, taking into account internal sources and heat transfer between the calculated elements and layers. The method of calculating the combined heat exchange processes allow obtaining local thermophysical parameters of the system. The model takes into account the thermal resistance of passive and active thermal protection, the thermophysical and geometric properties of the design elements when the environmental parameters change. To calculate the mass flow rate of the coolant (blood) to the calculated elements, the flow-pressure characteristics of the human circulatory system are taken into account within the framework of the presented methodology. This paper presents the results of model studies of thermal processes in the human thermoregulation system when entering the conditions of weightlessness. The influence of heat transfer with the heat carrier current between the calculated elements and layers on the Earth and in weightlessness is estimated. The influence of the magnitude of internal heat release on the heat exchange processes is investigated. The analysis of the obtained results makes it possible to supplement the experiments with computer studies, as well as to optimize control systems and elements of individual life support systems to protect a person from adverse external factors.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"306 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123132709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effectiveness Research of the Apriori Algorithm Implementations as Part of the Recommendation System 推荐系统中Apriori算法实现的有效性研究

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647623

Igor M. Stubarev, Olga K. Alsowa, A. Yakimenko

{"title":"Effectiveness Research of the Apriori Algorithm Implementations as Part of the Recommendation System","authors":"Igor M. Stubarev, Olga K. Alsowa, A. Yakimenko","doi":"10.1109/apeie52976.2021.9647623","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647623","url":null,"abstract":"The article presents a comparison of the author's implementation of the Apriori algorithm with implementation presented in the Accord.NET library. A comparison of various parallel implementations of this algorithm is also shown. The main objective of the article is evaluating the efficiency of the Apriori affinity analysis algorithm implementation by the speed of creating an association rules list. The results of testing on the data provided by the company “FB Consult” are given. The test results show an increase in performance of the optimized parallelized implementation by about 5.28 times compared to the implementation from Accord.NET. This article clearly shows that optimization of the algorithm in order to reduce the running time by using binary vectors and operations on them gives more significant speedup than parallelization. Whereas when parallelizing, attention should be paid to the computation of support for association rules, because based on the results of this function, most of the association rules will be eliminated.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121028870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lightning Overvoltages Suppression for the 35-kV Cable Section Insulation with the Frequency-Dependent Device 频率相关装置抑制35kv电缆分段绝缘雷电过电压

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647458

O. Emelyanova, V. Loman, S. Korobeynikov

{"title":"Lightning Overvoltages Suppression for the 35-kV Cable Section Insulation with the Frequency-Dependent Device","authors":"O. Emelyanova, V. Loman, S. Korobeynikov","doi":"10.1109/apeie52976.2021.9647458","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647458","url":null,"abstract":"Lightning strokes are considered to be the one of the most serious factor impacting the electrical equipment insulation and leading to the high overvoltage level that has to be reduced. The paper deals with the analysis of unrestricted lightning overvoltages impacting the 35-kV cable line insulation that was carried out for the case when the chopped impulse is formed as a result of the line insulation flashover. Following the preliminary results, dangerous lightning overvoltages that exceed the permitted impulse strength of the cable line insulation can occur when the overhead line with the 35-kV nominal voltage is arranged in a 110-kV line frame. In some cases, the traditional protection devices are not effective in the high-frequency overvoltage restriction. So the new method of suppression is considered for the 35-kV cable line protection. The effectiveness of the frequency-dependent device at lightning strokes is analyzed for different simulation modes and variable protection device characteristics. As a result, recommendations for the appropriate frequency-dependent device parameters are given.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121241868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Testing Intervals in the Conditions of Optical Fiber Periodic Predictive Control 光纤周期预测控制条件下测试间隔的优化

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647546

V. Shuvalov, B. Zelentsov, I. .. Kvitkova

引用次数: 0

Improved Dynamic of Engine Generation Set Using Energy Storage and the Instantaneous Power Theory 利用储能和瞬时功率理论改进发动机发电机组动态特性

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647618

M. Dybko, Sergey V. Kuchak, Evgeniy V. Grishanov

{"title":"Improved Dynamic of Engine Generation Set Using Energy Storage and the Instantaneous Power Theory","authors":"M. Dybko, Sergey V. Kuchak, Evgeniy V. Grishanov","doi":"10.1109/apeie52976.2021.9647618","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647618","url":null,"abstract":"This paper presents a comparative evaluation of two different algorithms for an Energy Storage System installed with an Engine Generation Set in an autonomous power supply system. The algorithms presented are intended to improve dynamic of the engine generation set units when a load connects or disconnects from the power supply system. All the algorithms are based on the instantaneous power theory. The main advantage of these algorithms is that they do not require any significant changes or additions to the known control system for a shunt active power filter. In fact, as shown in the article, energy storage system controlled by slightly modified algorithm based on the instantaneous power theory becomes a power system for load transients during load commutations. It is shown, that ESS provides smoother power variation using these additions to the conventional instantaneous power theory as far as active power filtering. Moreover, an ESS still may operate as an active power filter with some limitations concerning load changes. The results presented in paper are verified by simulation models.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122437312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling of Gas-liquid Mixture Flow Considering the Processes of Gas Liberation and Dissolution 考虑气体释放和溶解过程的气液混合流动建模

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647542

Anastasia S. Ovchinnikova, I. I. Patrushev, A. Grif

{"title":"Modeling of Gas-liquid Mixture Flow Considering the Processes of Gas Liberation and Dissolution","authors":"Anastasia S. Ovchinnikova, I. I. Patrushev, A. Grif","doi":"10.1109/apeie52976.2021.9647542","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647542","url":null,"abstract":"An approach to modeling multiphase flow of a gas-liquid compressible mixture taking into account the liberation and dissolution of gas is considered. Approach is based on an implicit pressure calculation using the finite element method and explicit phase transport. A computational scheme for modeling the processes of gas component transfer between oil and gas phases based on the known pressure dependence of the gas factor is described. In the considered approach the changes of phases volume appearing during the flow process are taken into account in the right-hand side of the equation used for pressure calculation. An iterative method for solving the obtained nonlinear boundary value problem for pressure calculation is described. This method based on the linearization of the pressure dependence of phases volume changes in the right-hand sides of the equation and boundary conditions. The verification of the proposed method is carried out on a test problem from the comparative project SPE-1. At each time step it takes an average of two nonlinearity iterations. The resulting plots of well data and gas phase distribution data are in good agreement with the results of the SPE-1 project participants.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114158605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Method of Experimental Evaluation of Noise Immunity and Stealth of Radio Engineering Systems with Polarization Modulation 偏振调制无线电工程系统抗扰性和隐身性的实验评估方法

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647578

A. Krenev, V. S. Nabilkin

{"title":"The Method of Experimental Evaluation of Noise Immunity and Stealth of Radio Engineering Systems with Polarization Modulation","authors":"A. Krenev, V. S. Nabilkin","doi":"10.1109/apeie52976.2021.9647578","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647578","url":null,"abstract":"The dynamics of the development of systems with polarization processing raises the question of the methods of their research. An important role in the creation and research of radio engineering systems is played by methods of semi-natural modeling, which allow conducting research and testing algorithms for the functioning of products at all stages of their development on prototypes and simulators, replacing a significant part of field tests with semi-natural modeling. The combination of full-scale and mathematical models allows us to conduct research of those situations when a full-scale experiment is not possible or its implementation requires the involvement of large resources. One of the measured parameters is noise immunity and stealth. The article presents the basics of the methodology for experimental evaluation of noise immunity and stealth of systems with polarization modulation. The structure of the stand implementing it is described, an example of using the method for comparative evaluation of noise immunity of various processing algorithms is given.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114417429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Method of Building a Hexagonal Grid 构建六边形网格的方法

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647672

Nickolay M. Zubashevskiy, A. Berkin

引用次数: 0

Coupling of Vector and Scalar Boundary Element Methods 向量与标量边界元方法的耦合

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647694

S. Sivak, M. Royak, I. Stupakov

引用次数: 0

Optical Circuit Diagram of a Centration Distances Measuring Device and the Automated Measurement Algorithm 一种浓缩距离测量装置的光学电路图及自动测量算法

2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE) Pub Date : 2021-11-19 DOI: 10.1109/apeie52976.2021.9647579

Igor O. Mikhaylov, E. I. Shtanko

{"title":"Optical Circuit Diagram of a Centration Distances Measuring Device and the Automated Measurement Algorithm","authors":"Igor O. Mikhaylov, E. I. Shtanko","doi":"10.1109/apeie52976.2021.9647579","DOIUrl":"https://doi.org/10.1109/apeie52976.2021.9647579","url":null,"abstract":"The optical circuit diagram of the measuring device for centration distances monitoring of corrective glasses was presented. The performed bibliographic research shows that the topic declared in the paper is relevant, since at present there is no device for automated measurement of the centration distances monitoring of corrective glasses. The measuring device designing procedure includes not only the optical circuit diagram proposal but also the error estimation. The influence of an optical beam splitter on the measurement error is investigated. The device design formula is presented, and the accuracy analysis is held. The main steps of the automated measurement algorithm are formulated. In the conclusion, the pre-arrangement of the measuring device is shown. The measuring device proposed in the article and the automated processing algorithm will make it possible to achieve a high degree of automation of the measuring processes. It can significantly reduce the operator's influence on the measurement results. It was shown that the proposed measuring device fits the up-to-date technical requirements in measuring accuracy.","PeriodicalId":272064,"journal":{"name":"2021 XV International Scientific-Technical Conference on Actual Problems Of Electronic Instrument Engineering (APEIE)","volume":"341 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123994974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0