Pub Date : 2018-04-01DOI: 10.1109/ELNANO.2018.8477452
A. Druzhinin, Y. Khoverko, I. Ostrovskii, S. Yatsukhnenko
Negative magnetoresistance of Si p-type whiskers with different impurity concentration $10^{18} - 5times 10^{18}$ cm−3 which corresponds to the transition of a metal-dielectric in silicon and diluted with nickel were studied in longitudinal magnetic field 0–14 T in the temperature range 4.2–77 K. The large negative magnetoresistance values correspond to hopping conductance on the twice occupied by electrons impurity states. It is established that in order to predict the magnetoresistance of crystals, it is necessary to take into account the polarization component due to the nature of the hopping conductance at low temperatures
{"title":"Spin-Dependent Transport of Charge Carriers in Silicon Microcrystals Doped with Boron and Diluted with Nickel","authors":"A. Druzhinin, Y. Khoverko, I. Ostrovskii, S. Yatsukhnenko","doi":"10.1109/ELNANO.2018.8477452","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477452","url":null,"abstract":"Negative magnetoresistance of Si p-type whiskers with different impurity concentration $10^{18} - 5times 10^{18}$ cm−3 which corresponds to the transition of a metal-dielectric in silicon and diluted with nickel were studied in longitudinal magnetic field 0–14 T in the temperature range 4.2–77 K. The large negative magnetoresistance values correspond to hopping conductance on the twice occupied by electrons impurity states. It is established that in order to predict the magnetoresistance of crystals, it is necessary to take into account the polarization component due to the nature of the hopping conductance at low temperatures","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125771613","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477488
O. Maksakova, A. Pogrebnjak, S. Simões
This research focuses on the characterization of multilayer ZrN/CrN coatings deposited by Arc-PVD technique on steel substrates. Structural and morphological properties of the deposited films are analyzed by optical microscopy and scanning electron microscopy. The quantification of crystalline phases in the coatings is obtained by X-ray diffraction. The variations in thermal transformation properties due to annealing within the temperature range from 30°C to 1400°C are studied by differential scanning calorimetry. The gradient films composed of alternating ZrN and CrN layers have different microstructure and elemental composition due to deposition conditions. The average crystalline size ranging from 8 to 12 nm is observed. Critical temperature where the coatings demonstrate different transformation courses is determined about 1180°C.
{"title":"Morphology, Structure and Thermal Properties of Multilayer ZrN/CrN Coatings","authors":"O. Maksakova, A. Pogrebnjak, S. Simões","doi":"10.1109/ELNANO.2018.8477488","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477488","url":null,"abstract":"This research focuses on the characterization of multilayer ZrN/CrN coatings deposited by Arc-PVD technique on steel substrates. Structural and morphological properties of the deposited films are analyzed by optical microscopy and scanning electron microscopy. The quantification of crystalline phases in the coatings is obtained by X-ray diffraction. The variations in thermal transformation properties due to annealing within the temperature range from 30°C to 1400°C are studied by differential scanning calorimetry. The gradient films composed of alternating ZrN and CrN layers have different microstructure and elemental composition due to deposition conditions. The average crystalline size ranging from 8 to 12 nm is observed. Critical temperature where the coatings demonstrate different transformation courses is determined about 1180°C.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122239871","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477467
A. Nevgasymyi, N. Miroshnichenko, S. Miroshnichenko
In this article are described the modification principles of the digital radiographic units with the linear tomography mode to units with the tomosynthesis mode. It is seen advantages and disadvantages of the radiography, tomography and tomosynthesis modes. It is seen the way the reduction patient dose in comparison with the multislice computer tomography examination. It is told why the tomosynthesis mode significantly expands the diagnostic capabilities of radiography without significantly increasing the patient dose.
{"title":"Modification of the Digital Radiographic Units with the Linear Tomography Mode to Units with the Tomosynthesis Mode","authors":"A. Nevgasymyi, N. Miroshnichenko, S. Miroshnichenko","doi":"10.1109/ELNANO.2018.8477467","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477467","url":null,"abstract":"In this article are described the modification principles of the digital radiographic units with the linear tomography mode to units with the tomosynthesis mode. It is seen advantages and disadvantages of the radiography, tomography and tomosynthesis modes. It is seen the way the reduction patient dose in comparison with the multislice computer tomography examination. It is told why the tomosynthesis mode significantly expands the diagnostic capabilities of radiography without significantly increasing the patient dose.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124888195","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477513
S. Meshchaninov, A. Nelha, V. Spivak, O. Vovna
Method for increasing thermometer response speed by extrapolating temperature data in a transient measurement mode with electric active heating of the sensitive element has been proposed.
提出了一种利用敏感元件电主动加热的瞬态测量模式外推温度数据来提高温度计响应速度的方法。
{"title":"Increasing Thermometer Response Speed in the System of Physiological Parameters of the Human Organism Paper Title","authors":"S. Meshchaninov, A. Nelha, V. Spivak, O. Vovna","doi":"10.1109/ELNANO.2018.8477513","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477513","url":null,"abstract":"Method for increasing thermometer response speed by extrapolating temperature data in a transient measurement mode with electric active heating of the sensitive element has been proposed.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123978628","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477463
O. Sulymenko, O. Prokopenko
Existing techniques of the THz-frequency signals generation require complex experimental setups and usually can not be realized even at micron scale. In contrast to this recently it was shown that a thin antiferromagnetic (AFM) layer covered by a thin metal layer having a strong spin-orbital coupling and biased by a dc current can be used as a nano-scale source of electromagnetic ac signals with frequencies close to the eigenfrequencies of AFM material (typically 0.1–10 THz). In this paper we theoretically analyze and compare performance of such THz-frequency sources based on three different mechanisms of ac signal power extraction realized via the inverse spin Hall effect, magnetic dipole emission and via THz-frequency variations of the tunneling anisotropic magnetoresistance in AFM tunnel junction. Our calculations show that the second mechanism (magnetic dipole emission) could be preferable and could provide an output ac power about several microwatts in the frequency range 0.5–2 THz.
{"title":"Generation of THz-Frequency Electromagnetic Signals in Antiferromagnetic Nano-Oscillators","authors":"O. Sulymenko, O. Prokopenko","doi":"10.1109/ELNANO.2018.8477463","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477463","url":null,"abstract":"Existing techniques of the THz-frequency signals generation require complex experimental setups and usually can not be realized even at micron scale. In contrast to this recently it was shown that a thin antiferromagnetic (AFM) layer covered by a thin metal layer having a strong spin-orbital coupling and biased by a dc current can be used as a nano-scale source of electromagnetic ac signals with frequencies close to the eigenfrequencies of AFM material (typically 0.1–10 THz). In this paper we theoretically analyze and compare performance of such THz-frequency sources based on three different mechanisms of ac signal power extraction realized via the inverse spin Hall effect, magnetic dipole emission and via THz-frequency variations of the tunneling anisotropic magnetoresistance in AFM tunnel junction. Our calculations show that the second mechanism (magnetic dipole emission) could be preferable and could provide an output ac power about several microwatts in the frequency range 0.5–2 THz.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130047611","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477546
S. Peresada, Y. Zaichenko, S. Kovbasa, V. Reshetnik
The paper presents a novel adaptive current control algorithm for three phase shunt active power filters. The observer based current controller guarantees asymptotic current tracking together with the simultaneous harmonic estimation and does not require high gain implementation and information about active resistance of the power filter inductance. As result the asymptotic compensation of the higher order harmonics and reactive component of the line grid current is achieved. A new observer for line voltage vector estimation is designed as well. The nonlinear observer provides fast adaptive estimation of the line voltage vector magnitude, angular frequency and position; reduce influence of line voltage distortions and measurement noise. Simulation and experimental results support the theoretical findings.
{"title":"Adaptive Current Control for Shunt Active Power Filters","authors":"S. Peresada, Y. Zaichenko, S. Kovbasa, V. Reshetnik","doi":"10.1109/ELNANO.2018.8477546","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477546","url":null,"abstract":"The paper presents a novel adaptive current control algorithm for three phase shunt active power filters. The observer based current controller guarantees asymptotic current tracking together with the simultaneous harmonic estimation and does not require high gain implementation and information about active resistance of the power filter inductance. As result the asymptotic compensation of the higher order harmonics and reactive component of the line grid current is achieved. A new observer for line voltage vector estimation is designed as well. The nonlinear observer provides fast adaptive estimation of the line voltage vector magnitude, angular frequency and position; reduce influence of line voltage distortions and measurement noise. Simulation and experimental results support the theoretical findings.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128807753","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477538
V. Lozovski, P. Mai, N. Rusinchuk
The electrodynamic interaction between a spherical nanoparticle with a shell and a metal surface has been studied. Adsorption potential and spatial local field distribution in the system ‘nanoparticle-surface’ were calculated, their dependence on the surface structure have been studied. Both linear and nonlinear polarizabilities of the nanoparticle were taken into account. It was shown that presence of nanosized objects on the surface increases the nanoparticle adsorption and leads to the local field enhancement on the nanoparticle surface. The possibility of application of the model to the biomedicine has been described.
{"title":"Influence of the Surface Roughness on the Nanoparticle Adsorption: Theoretical Consideration","authors":"V. Lozovski, P. Mai, N. Rusinchuk","doi":"10.1109/ELNANO.2018.8477538","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477538","url":null,"abstract":"The electrodynamic interaction between a spherical nanoparticle with a shell and a metal surface has been studied. Adsorption potential and spatial local field distribution in the system ‘nanoparticle-surface’ were calculated, their dependence on the surface structure have been studied. Both linear and nonlinear polarizabilities of the nanoparticle were taken into account. It was shown that presence of nanosized objects on the surface increases the nanoparticle adsorption and leads to the local field enhancement on the nanoparticle surface. The possibility of application of the model to the biomedicine has been described.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128944679","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477443
H. Klym, O. Shpotyuk, A. Ingram, I. Karbovnyk
Modified method for measuring of positron annihilation spectra on the example of humidity-sensitive MgO-Al2O3 ceramics with advanced nanoporousity is proposed. It is shown that in the expansion of spectra into four components it is possible to estimate the nanopor sizes and to study the processes occurring in them. It was established that the nanoparticle fraction with a radius of ∼ 1.5 nm is an order of magnitude higher than the proportion of pores with a radius of ∼ 0.3 nm, in which also the ortho-positronium annihilation in adsorbed water occurs.
{"title":"Modified Positron Annihilation Lifetime Spectroscopy Method for Investigation of Nanomaterials with Advanced Porosity","authors":"H. Klym, O. Shpotyuk, A. Ingram, I. Karbovnyk","doi":"10.1109/ELNANO.2018.8477443","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477443","url":null,"abstract":"Modified method for measuring of positron annihilation spectra on the example of humidity-sensitive MgO-Al2O3 ceramics with advanced nanoporousity is proposed. It is shown that in the expansion of spectra into four components it is possible to estimate the nanopor sizes and to study the processes occurring in them. It was established that the nanoparticle fraction with a radius of ∼ 1.5 nm is an order of magnitude higher than the proportion of pores with a radius of ∼ 0.3 nm, in which also the ortho-positronium annihilation in adsorbed water occurs.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120907419","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477528
O. Karnaukh, Y. Karplyuk, Nataliia Nikitiuk
This paper presents the evaluation of T-wave alternans (TWA) detection based on machine learning techniques. F1-score metric was used for optimal features set selection. KNN, LR, RFC, SVC classifiers were evaluated as a part of TWA detection system. T-criteria was proposed as justification approach to select optimal features number based on classifiers performance. Designed optimal TWA classification system was evaluated on PhysioBank database and classification F1-score about 89% was obtained for RFC classifier.
{"title":"Evaluation of Machine Learning Techniques for ECG T-Wave Alternans","authors":"O. Karnaukh, Y. Karplyuk, Nataliia Nikitiuk","doi":"10.1109/ELNANO.2018.8477528","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477528","url":null,"abstract":"This paper presents the evaluation of T-wave alternans (TWA) detection based on machine learning techniques. F1-score metric was used for optimal features set selection. KNN, LR, RFC, SVC classifiers were evaluated as a part of TWA detection system. T-criteria was proposed as justification approach to select optimal features number based on classifiers performance. Designed optimal TWA classification system was evaluated on PhysioBank database and classification F1-score about 89% was obtained for RFC classifier.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115661102","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477553
O. Sushchenko, Y. Bezkorovainyi, N. Novytska
The paper deals with features of dynamic analysis of nonorthogonal redundant inertial measuring units based on MEMS-gyroscopes. The basic features of nonorthogonal redundant inertial measuring units are described. Advantages of researched inertial measuring units from the point of view of navigation accuracy are shown. The principle of operation and construction of the dynamic test bench are given. Features and results of experimental research are presented. The considered inertial measuring units can be used in autopilots of unmanned aerial vehicles.
{"title":"Dynamic Analysis of Nonorthogonal Redundant Inertial Measuring Units Based on MEMS-Sensors","authors":"O. Sushchenko, Y. Bezkorovainyi, N. Novytska","doi":"10.1109/ELNANO.2018.8477553","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477553","url":null,"abstract":"The paper deals with features of dynamic analysis of nonorthogonal redundant inertial measuring units based on MEMS-gyroscopes. The basic features of nonorthogonal redundant inertial measuring units are described. Advantages of researched inertial measuring units from the point of view of navigation accuracy are shown. The principle of operation and construction of the dynamic test bench are given. Features and results of experimental research are presented. The considered inertial measuring units can be used in autopilots of unmanned aerial vehicles.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115760208","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}
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