Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384617
A. Korotkov, Y. Mitelman
In this article a comparison is made of the cylindrical Luneburg lens of inhomogeneous dielectric filling with the lens made from the material with a constant value of the dielectric permittivity with introduced discontinuities. The comparison is carried out based on electromagnetic modeling in ANSYS Electronics Desktop-HFSS, with the creation of full-size models. The main stages of creating models and design difficulties are described in detail. Results obtained for the cylindrical Luneburg lens fed by an 80×40 mm2 open-ended waveguide, top and bottom is limited to metal plates separated 40 mm from each other, the radius of the lens is 237 mm, the frequency of analysis is 3 GHz. In partially filled dielectric layers of the cylindrical lens, the dielectric used has a constant value of dielectric permittivity equal to 2.6, which corresponds to the common plastics used for 3D-printing.
{"title":"Comparison of luneburg lens antennas made from homogeneous material","authors":"A. Korotkov, Y. Mitelman","doi":"10.1109/USBEREIT.2018.8384617","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384617","url":null,"abstract":"In this article a comparison is made of the cylindrical Luneburg lens of inhomogeneous dielectric filling with the lens made from the material with a constant value of the dielectric permittivity with introduced discontinuities. The comparison is carried out based on electromagnetic modeling in ANSYS Electronics Desktop-HFSS, with the creation of full-size models. The main stages of creating models and design difficulties are described in detail. Results obtained for the cylindrical Luneburg lens fed by an 80×40 mm2 open-ended waveguide, top and bottom is limited to metal plates separated 40 mm from each other, the radius of the lens is 237 mm, the frequency of analysis is 3 GHz. In partially filled dielectric layers of the cylindrical lens, the dielectric used has a constant value of dielectric permittivity equal to 2.6, which corresponds to the common plastics used for 3D-printing.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131877224","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}
Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384619
Y. Mitelman
In the paper the new method of calculating the parameters of the cylindrical multilayered guiding structures based on model of equivalent radial transmission lines is used for estimating the characteristics of open dielectric waveguides. Proposed mathematical model is described based on previous publications. Ultimate simplifications are conducted analytically to prove the correctness of the considered expressions. Two layered optical fiber in limitless environment is analyzed in detail showing the effectiveness of proposed model for its analysis. It is concluded that the method can be very efficient for fast optic fiber synthesis algorithms as it has slow complexity growth with the number of layers of structure under consideration.
{"title":"New mathematical model for analysis of open circular dielectric waveguides","authors":"Y. Mitelman","doi":"10.1109/USBEREIT.2018.8384619","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384619","url":null,"abstract":"In the paper the new method of calculating the parameters of the cylindrical multilayered guiding structures based on model of equivalent radial transmission lines is used for estimating the characteristics of open dielectric waveguides. Proposed mathematical model is described based on previous publications. Ultimate simplifications are conducted analytically to prove the correctness of the considered expressions. Two layered optical fiber in limitless environment is analyzed in detail showing the effectiveness of proposed model for its analysis. It is concluded that the method can be very efficient for fast optic fiber synthesis algorithms as it has slow complexity growth with the number of layers of structure under consideration.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122199231","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}
Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384624
I. Kornilov
Possibility of signals transmission on the secondary basis in the primary user frequency band is examined. Adaptive algorithm of transmission and reception in the secondary network provides simultaneous operation of both users is offered. Influence of primary user signal on the reliability of data transmission in the secondary network is investigated.
{"title":"Compability of primary and secondary users in the same frequency band","authors":"I. Kornilov","doi":"10.1109/USBEREIT.2018.8384624","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384624","url":null,"abstract":"Possibility of signals transmission on the secondary basis in the primary user frequency band is examined. Adaptive algorithm of transmission and reception in the secondary network provides simultaneous operation of both users is offered. Influence of primary user signal on the reliability of data transmission in the secondary network is investigated.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"11 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841267","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}
Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384593
A. Kalmykov, M. Ronkin
This paper is devoted to description of the interferometry approach utilization of frequency-modulated continuous-wave (FMCW) modes in ultrasonic flowmeters. We propose the new algorithms of the time-delay difference measurement based on the phase approximation in the time domain (so called a class of Smooth Centroid Finite Difference Estimators — SCFD). Within this utilization of the beat signal model as a function of delay, it allows reduction of the signal to noise ratio (SNR) influence and the reverberation on the accuracy of estimations. This paper presents the results of the numerical and experimental modeling which prove the advantages of the proposed approach.
{"title":"A FMCW — Interferometry approach for ultrasonic flow meters","authors":"A. Kalmykov, M. Ronkin","doi":"10.1109/USBEREIT.2018.8384593","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384593","url":null,"abstract":"This paper is devoted to description of the interferometry approach utilization of frequency-modulated continuous-wave (FMCW) modes in ultrasonic flowmeters. We propose the new algorithms of the time-delay difference measurement based on the phase approximation in the time domain (so called a class of Smooth Centroid Finite Difference Estimators — SCFD). Within this utilization of the beat signal model as a function of delay, it allows reduction of the signal to noise ratio (SNR) influence and the reverberation on the accuracy of estimations. This paper presents the results of the numerical and experimental modeling which prove the advantages of the proposed approach.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126739328","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}
Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384594
V. Noskov, K. Ignatkov, A. P. Chupahin
On the basis of the developed mathematical model of interaction of the single-circuit microwave oscillator with a strong reflected emission, using numerical methods, the role of load variations on the process of forming the autodyne response is shown. The coefficients of harmonics are calculated as well as amplitudes of harmonic components of the spectrum and levels of average values of load changes depending on a magnitude of the reflection coefficient modulus and changes of its phase. It is established that the main cause of distortions of the autodyne response under the strong reflected emission is the load “non-linearity”. In the case of a weak signal, when the modulus of the reflection coefficient is much lower than one, the load changes are almost harmonic ones and the determinative role in formation of signals with distortions belongs to processes associated with the irregularity of the reflected emission phase incursion.
{"title":"The influence of load variations on the of autodyne response formation in microwave oscillators under strong reflected emission","authors":"V. Noskov, K. Ignatkov, A. P. Chupahin","doi":"10.1109/USBEREIT.2018.8384594","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384594","url":null,"abstract":"On the basis of the developed mathematical model of interaction of the single-circuit microwave oscillator with a strong reflected emission, using numerical methods, the role of load variations on the process of forming the autodyne response is shown. The coefficients of harmonics are calculated as well as amplitudes of harmonic components of the spectrum and levels of average values of load changes depending on a magnitude of the reflection coefficient modulus and changes of its phase. It is established that the main cause of distortions of the autodyne response under the strong reflected emission is the load “non-linearity”. In the case of a weak signal, when the modulus of the reflection coefficient is much lower than one, the load changes are almost harmonic ones and the determinative role in formation of signals with distortions belongs to processes associated with the irregularity of the reflected emission phase incursion.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122288962","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}
Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384545
I. Gagarin, M. Tonkushina, A. Ostroushko
Kinetic characteristics of destruction of keplerate-type spheric porous nanocluster polyoxometalate Mo72Fe30 in alkaline media are investigated. Data that indicate the possibility of stabilization of Mo72Fe30 as a result of interaction with blood serum components are obtained.
{"title":"Stabilization of keplerate-type spheric porous nanocluster polyoxometalate Mo72Fe30","authors":"I. Gagarin, M. Tonkushina, A. Ostroushko","doi":"10.1109/USBEREIT.2018.8384545","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384545","url":null,"abstract":"Kinetic characteristics of destruction of keplerate-type spheric porous nanocluster polyoxometalate Mo<inf>72</inf>Fe<inf>30</inf> in alkaline media are investigated. Data that indicate the possibility of stabilization of Mo<inf>72</inf>Fe<inf>30</inf> as a result of interaction with blood serum components are obtained.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127022896","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}
Pub Date : 2018-06-13DOI: 10.1109/USBEREIT.2018.8384586
A. Kondratyev, K. Aksyonov, Natalia A. Buravova, O. Aksyonova
Many modern economic processes depend on the availability of data. And qualitative data about some process often is difficult to collect. Sometimes it is unreal. This article is about decision support system BPsim. Web, the main focus is on a simulation service of this system. The main idea is using a simulation to generate a data set. At the moment the simulation service are being developed. We described a task's set that are solved by service, also in this paper a description of its internal processes and methods of integration are given below. In the end of the article we showed an example of a task decided with the help of the developed simulation simulation service. This example consists of a description of the subject area and a description of the experiments being conducted.
{"title":"Simulation modeling as a service for intelligent systems","authors":"A. Kondratyev, K. Aksyonov, Natalia A. Buravova, O. Aksyonova","doi":"10.1109/USBEREIT.2018.8384586","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384586","url":null,"abstract":"Many modern economic processes depend on the availability of data. And qualitative data about some process often is difficult to collect. Sometimes it is unreal. This article is about decision support system BPsim. Web, the main focus is on a simulation service of this system. The main idea is using a simulation to generate a data set. At the moment the simulation service are being developed. We described a task's set that are solved by service, also in this paper a description of its internal processes and methods of integration are given below. In the end of the article we showed an example of a task decided with the help of the developed simulation simulation service. This example consists of a description of the subject area and a description of the experiments being conducted.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126554459","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}
Pub Date : 2018-05-07DOI: 10.1109/USBEREIT.2018.8384603
F. Mirsaitov, K. Ignatkov
The sensor is designed for in-flight aeroengine turbine blade vibration monitoring. The sensor operation and construction are similar to liquid rocket engine flame parameters sensors. Three dimensional (3D) electromagnetic (EM) field structure and its fluctuation depending on regular, vibrating and damaged blade travel states have been researched in quasi-static approximation. Probing frequency varied from 4 to 40 GHz, and range from 28 to 37 GHz was accepted as preferable. Field structure impact on antenna current flow, its vector admittance, and reflectivity have been found out. Furthermore, computational EM simulation by FEKO software tool was applied. Then autodyne frequency response form was found out. During regular turbine rotation radio frequency (RF) spectrum is sampled. Sampling rate F is a multiplication of rotation frequency (hundreds of hertz) to number of blades (approximately one hundred hertz). Estimated samples amplitudes are stipulated by response form and modulated by vibration process.
{"title":"Gas turbine engine in-flight diagnostics using 3D vibration spectra","authors":"F. Mirsaitov, K. Ignatkov","doi":"10.1109/USBEREIT.2018.8384603","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384603","url":null,"abstract":"The sensor is designed for in-flight aeroengine turbine blade vibration monitoring. The sensor operation and construction are similar to liquid rocket engine flame parameters sensors. Three dimensional (3D) electromagnetic (EM) field structure and its fluctuation depending on regular, vibrating and damaged blade travel states have been researched in quasi-static approximation. Probing frequency varied from 4 to 40 GHz, and range from 28 to 37 GHz was accepted as preferable. Field structure impact on antenna current flow, its vector admittance, and reflectivity have been found out. Furthermore, computational EM simulation by FEKO software tool was applied. Then autodyne frequency response form was found out. During regular turbine rotation radio frequency (RF) spectrum is sampled. Sampling rate F is a multiplication of rotation frequency (hundreds of hertz) to number of blades (approximately one hundred hertz). Estimated samples amplitudes are stipulated by response form and modulated by vibration process.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123258076","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}
Pub Date : 2018-05-07DOI: 10.1109/USBEREIT.2018.8384571
S. Porshnev, A. Borodin, E. Dymova, O. Ponomareva
This paper indicates the actuality of creating a single unified data warehouse, which ensures primary data acquisition of metallurgy production output parameters on every step of a technological flow. The authors also propose the structure of an information system that ensures the operation and use of a single data warehouse.
{"title":"Computer-aided system for metallurgy production output: From heterogeneous data bases to unified data warehouse","authors":"S. Porshnev, A. Borodin, E. Dymova, O. Ponomareva","doi":"10.1109/USBEREIT.2018.8384571","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384571","url":null,"abstract":"This paper indicates the actuality of creating a single unified data warehouse, which ensures primary data acquisition of metallurgy production output parameters on every step of a technological flow. The authors also propose the structure of an information system that ensures the operation and use of a single data warehouse.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123702572","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}
Pub Date : 2018-05-07DOI: 10.1109/USBEREIT.2018.8384535
A. R. Abdulraqeb, W. Al-haidri, L. T. Sushkova
A novel segmentation algorithm for MRI Brain tumor images is proposed. The proposed algorithm is compared with Thresholding and Region Grow methods. Testing was performed by generating two datasets of real MRI images of brain tumors. Criteria for assessment of the quality of the segmentation results were: the Dice score, sensitivity, specificity and accuracy. Analysis of results obtained using this algorithm to solve the brain tumor MRI image segmentation task showed levels of sensitivity and specificity of 91% to 99%, which is evidence that assessment of the position and boundaries of brain pathology is highly effective.
{"title":"A novel segmentation algorithm for MRI brain tumor images","authors":"A. R. Abdulraqeb, W. Al-haidri, L. T. Sushkova","doi":"10.1109/USBEREIT.2018.8384535","DOIUrl":"https://doi.org/10.1109/USBEREIT.2018.8384535","url":null,"abstract":"A novel segmentation algorithm for MRI Brain tumor images is proposed. The proposed algorithm is compared with Thresholding and Region Grow methods. Testing was performed by generating two datasets of real MRI images of brain tumors. Criteria for assessment of the quality of the segmentation results were: the Dice score, sensitivity, specificity and accuracy. Analysis of results obtained using this algorithm to solve the brain tumor MRI image segmentation task showed levels of sensitivity and specificity of 91% to 99%, which is evidence that assessment of the position and boundaries of brain pathology is highly effective.","PeriodicalId":176222,"journal":{"name":"2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126442949","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：