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2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)最新文献

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Practical Buck DC/DC Converter Theoretical and Experimental Evaluation 实用降压DC/DC变换器理论与实验评价
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187326
T. Hranov, N. Hinov, Adriana Lilova
{"title":"Practical Buck DC/DC Converter Theoretical and Experimental Evaluation","authors":"T. Hranov, N. Hinov, Adriana Lilova","doi":"10.1109/ICEST58410.2023.10187326","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187326","url":null,"abstract":"In this paper is presented the study of a buck DC/DC converter via mathematical modelling and then a comparison is made against experimental studies via electronic EVM board. The main goal is to evaluate the feasibility of the model for studies, related to the verification of the design and operating regimes of buck DC/DC converters. The EVM allows for change of the circuit elements, hence the parameters of the DC/DC converter and by studying their influence, it can be concluded how that affects the steady-state operating regimes. By using model-based evaluation one can view the study as a useful tool in design stage for taking decisions about the building blocks and components, which will be used in the design. The study can also be very useful for students and trainees to verify the influence of the passive filters in the converters.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122960517","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
Performance Analysis of Fixed-Point and Floating-Point 32-bit Quantizers for $L_{1}$ Norm and Laplacian Source $L_{1}$范数和拉普拉斯源的定点和浮点32位量化器性能分析
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187312
Z. Perić, B. Denic, N. Vučić, A. Jovanovic, J. Nikolić
{"title":"Performance Analysis of Fixed-Point and Floating-Point 32-bit Quantizers for $L_{1}$ Norm and Laplacian Source","authors":"Z. Perić, B. Denic, N. Vučić, A. Jovanovic, J. Nikolić","doi":"10.1109/ICEST58410.2023.10187312","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187312","url":null,"abstract":"In this paper, the goal is to examine how the choice of parameters of two different quantizers designed to correspond to fixed-point and floating-point 32-bit formats affect the signal-to-quantization-noise ratio (SQNR) for a wide variance range of the input signal modelled by the Laplacian probability density function, where the $boldsymbol{L}_{mathbf{1}}$ norm is used to measure the distortion brought by both quantization models. It is shown that it is possible to choose the parameters of the quantizer designed according to the fixed-point 32-bit format in such a way that it outperforms the quantizer designed according to the 32-bit floating-point format in terms of the average SQNR. Since the quantizer designed according to the fixed-point format is simpler to design and implement than the one designed according to the floating-point format, the presented analysis is of great importance for the implementation of a simpler quantizer model, which could be important for numerous applications in which the simplicity of the quantizer model is very important.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114871444","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
Studying the Possibility of Using a Multi-Sensory System for Precise Monitoring of Some Environmental Factors in Order to Assist in the Management of an Orchard 研究利用多感官系统对某些环境因子进行精确监测以辅助果园管理的可能性
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187361
H. Hristov, L. Laskov, Alexander D. Popov
{"title":"Studying the Possibility of Using a Multi-Sensory System for Precise Monitoring of Some Environmental Factors in Order to Assist in the Management of an Orchard","authors":"H. Hristov, L. Laskov, Alexander D. Popov","doi":"10.1109/ICEST58410.2023.10187361","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187361","url":null,"abstract":"The aim of our study is to check the possibility of using of the multisensory system for accurate monitoring of the change in temperature and relative humidity in the air and soil in an orchard. The measurements have been made for two years in several areas of an orchard, in specific places in the crowns of trees and the root soil layer. The results through entire period were adequate, and the correlation coefficients between the measured parameters (air temperature, relative air humidity, soil temperature and relative soil humidity) at different heights and in different zones had values between 0.995 and 0.9977.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121097092","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
Substrate Effects on Electrophoretic Deposited Biocompatible Piezo-Salts 电泳沉积生物相容性压电盐的底物效应
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187305
R. Rusev, B. Tzaneva, I. Ruskova, Mariya Aleksandrova, Stanio V. Kolev
{"title":"Substrate Effects on Electrophoretic Deposited Biocompatible Piezo-Salts","authors":"R. Rusev, B. Tzaneva, I. Ruskova, Mariya Aleksandrova, Stanio V. Kolev","doi":"10.1109/ICEST58410.2023.10187305","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187305","url":null,"abstract":"Piezo layers of non-toxic and biocompatible salts are formed for the green microelectronics, such as Rochelle Salt and ammonium dihydrogen phosphate. These layers were deposited with electrophoresis on aluminum and copper substrates. The influence of the substrates on the morphology of the layers and their piezo-response were studied. The obtained structures are polycrystalline, but have the piezo-moduli comparable to monocrystals and inorganic ceramics.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117253949","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
Implementation of the Serbian Language POS Taggers Using the NLTK Library 使用NLTK库实现塞尔维亚语POS标注器
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187245
Nikola V. Vukotić, Sofija Č. Petrović, Suzana R. Stojković
{"title":"Implementation of the Serbian Language POS Taggers Using the NLTK Library","authors":"Nikola V. Vukotić, Sofija Č. Petrović, Suzana R. Stojković","doi":"10.1109/ICEST58410.2023.10187245","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187245","url":null,"abstract":"This paper describes research on different methods for implementing part-of-speech taggers for the Serbian language. Experiments were conducted on the SrWaC corpus, which consists of 10 million tokens collected from. rs web domain. Algorithms from NLTK library were used for creating tagging models. The tagset was modified and adapted for semi-deep tagging. The experiments involved preprocessing of the corpus to correct tagging mistakes and reversing the word order in sentences to obtain a reversed corpus, which is used for creating backwards tagging model. To achieve greater accuracy, a tagger that combines n-gram taggers was implemented using the NLTK library. However, the best result achieved during tagging was with the Perceptron tagger, which reached 95% accuracy. The goal of this work is, among other things, to ensure that tagging is fast, as the intention is to use the best models for a syntactic analysis tool for the Serbian language.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127045218","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
Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting 太阳辐照度预测的单变量和多变量模型的比较分析
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187242
S. Singh, S. Yadav, Ilija Batas Bjelic, Rhythm Singh
{"title":"Comparative Analysis of Univariate and Multivariate Models for Solar Irradiance Forecasting","authors":"S. Singh, S. Yadav, Ilija Batas Bjelic, Rhythm Singh","doi":"10.1109/ICEST58410.2023.10187242","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187242","url":null,"abstract":"The focus of this study is to analyse and compare the predictive capabilities of univariate and multivariate methods of forecasting the global horizontal irradiance (GHI) for an hour ahead. The forecasting problem is addressed using supervised machine learning methods. In order to simplify the model, a feature selection algorithm is used to identify the highly correlated features. The forecasting is performed by utilizing popular machine learning algorithms viz., random forest (RF), K-nearest neighbors regression (KNN), support vector machine (SVM) and artificial neural networks (ANN). The paper evaluates and contrasts the effectiveness of these models for this application. Additionally, the study examines how the forecasting models' performance varies throughout the year and across seasons.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130536695","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
Use of Thermography Methods for Monitoring Grazing Livestock 利用热成像法监测放牧牲畜
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187214
Tsvetan Valkovski, D. Saliev, I. Damyanov
{"title":"Use of Thermography Methods for Monitoring Grazing Livestock","authors":"Tsvetan Valkovski, D. Saliev, I. Damyanov","doi":"10.1109/ICEST58410.2023.10187214","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187214","url":null,"abstract":"This paper explores the possibility of recognizing and separating the individual biological units in a particular field of study. The aim is to separate the different biological units and distinguish them by species such as cattle, smaller domestic animals and carnivores. It is possible to determine the number and localization of animals from the analysis of photographic material captured by unmanned aerial vehicles and processed by software.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128258060","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
Utilization of Affordable Modern Technologies in Examination of DC/AC Machines and Drives 经济实惠的现代技术在直流/交流电机和驱动器检测中的应用
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187289
Filip R. Filipović, M. Petronijević, Nebojša N. Mitrović, Bojan G. Banković, V. Kostic
{"title":"Utilization of Affordable Modern Technologies in Examination of DC/AC Machines and Drives","authors":"Filip R. Filipović, M. Petronijević, Nebojša N. Mitrović, Bojan G. Banković, V. Kostic","doi":"10.1109/ICEST58410.2023.10187289","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187289","url":null,"abstract":"This paper presents a laboratory setup for the examination of separately excited DC motor and induction motor along with appropriate drives that enable energy recuperation. Various configurations and modes of operation are controlled using a supervisory system that ensures a safe mode of operation and enables the record and export of relevant signals in a format suitable for further analysis.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"22 3-4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132336342","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 a Class of Four-port Dual-band Couplers by Transmission Line-based Wave Digital Approach 一类基于传输线的四端口双频耦合器的波形数字建模
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187392
B. Stošić, M. Nedelchev
{"title":"Modeling a Class of Four-port Dual-band Couplers by Transmission Line-based Wave Digital Approach","authors":"B. Stošić, M. Nedelchev","doi":"10.1109/ICEST58410.2023.10187392","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187392","url":null,"abstract":"The modeling of a four-port coupler device using a transmission line-based wave digital (WD) approach involves representing the device as a network of transmission line sections that are connected through topological junctions. In this work, the focus is on expanding the range of microwave circuits modeled with use of the WD technique to include circuits with several ports. Different topologies of four-port dual-band couplers with open-circuited, short-circuited or stepped-impedance stubs are investigated here.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131377467","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
Converters with Energy Dosing by Inductance 电感加能变换器
2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) Pub Date : 2023-06-29 DOI: 10.1109/ICEST58410.2023.10187369
N. Madzharov, D. Iliev
{"title":"Converters with Energy Dosing by Inductance","authors":"N. Madzharov, D. Iliev","doi":"10.1109/ICEST58410.2023.10187369","DOIUrl":"https://doi.org/10.1109/ICEST58410.2023.10187369","url":null,"abstract":"This paper presents the results of studying the converters with energy dosing by inductance and proves their ability to maintain stable output power when the load parameters vary, without using and applying the regulatory properties of the control system. The properties of the following circuits: boost converter, buck - boost converter, buck-boost converter with galvanic isolation, circuit from Patent US 10,700,598 B2 are presented and analysed. On the basis of the analysis of electromagnetic processes, the restrictive conditions are derived for the circuit operation with constant power or output voltage when load parameters or input voltage vary. Expressions have been obtained with the help of which the control system can predict, compensate and set the desired converter parameters. The regulatory characteristics built as a function of the load value and inductance make it possible to evaluate the behaviour of the converters, on the one hand and on the other hand, to carry out their rapid design.","PeriodicalId":278683,"journal":{"name":"2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125660484","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
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