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2019 12th International Conference on Measurement最新文献

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Improvement of the Method for Measuring the Shock Tubes Velocity of Detonation by using a CNC Machined Base and Oscilloscopes 利用数控加工底座和示波器测量激波管爆轰速度方法的改进
2019 12th International Conference on Measurement Pub Date : 2019-07-18 DOI: 10.23919/MEASUREMENT47340.2019.8780094
D. Kuhinek, B. Štimac, A. Hanic, Luka Čančar
{"title":"Improvement of the Method for Measuring the Shock Tubes Velocity of Detonation by using a CNC Machined Base and Oscilloscopes","authors":"D. Kuhinek, B. Štimac, A. Hanic, Luka Čančar","doi":"10.23919/MEASUREMENT47340.2019.8780094","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8780094","url":null,"abstract":"The accuracy of shock tubes velocity of detonation measurement depends on the distance and signal delay time between two probes. In this paper, the distance error is reduced by using a special CNC machined base with the accuracy of 0.01 mm. The explosion light was converted into electrical signals by using photodiodes, the delay time was measured by using two oscilloscopes connected through an ethernet router to a computer and a virtual instrument was made in Labview data acquisition software. The measurements showed that the measurement conducted with oscilloscopes gives a consistent result.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122403296","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: 1
Ions Flow Dynamics Research Using Fast Magnetic Resonance Imaging Method 快速磁共振成像技术研究离子流动动力学
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8780083
I. Frollo, A. Krafčík, D. Gogola, T. Dermek, L. Baciak
{"title":"Ions Flow Dynamics Research Using Fast Magnetic Resonance Imaging Method","authors":"I. Frollo, A. Krafčík, D. Gogola, T. Dermek, L. Baciak","doi":"10.23919/MEASUREMENT47340.2019.8780083","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8780083","url":null,"abstract":"Ions flow is known physical phenomenon used for capacitive deionization concentration characterization, for electrical impedance tomography, for ion exchange and demineralization and cells electrolysis. In general, the cited methods are oriented to the static presentation of the ions flow. The goal of this paper is to demonstrate ions flow in water solution using a magnetic resonance imaging method. Fast magnetic resonance imaging resonance method of the ions flow between two silver electrodes connected to the DC battery allows seeing particular pictures or video dynamics of movement of ions in the water solution.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131365717","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
Simple Seamless Multi-Range Current Measurement for Applications with a Large Dynamic Range 用于大动态范围应用的简单无缝多量程电流测量
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8779882
J. Eichler, M. Novák
{"title":"Simple Seamless Multi-Range Current Measurement for Applications with a Large Dynamic Range","authors":"J. Eichler, M. Novák","doi":"10.23919/MEASUREMENT47340.2019.8779882","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8779882","url":null,"abstract":"A dual-band simultaneous sampling measuring chain was designed to suppress the noise level and to measure the energies taken and charged from and into the accumulator. The bypass switch of the sensitive range was replaced by two anti-parallel diodes. The analysis of the measuring chain noise justifies the solution used. The reached signal-to-noise ratio is up to 156 dB compared to the original one of 86 dB for 24 bit ADC.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"29 25","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120854824","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: 1
Reconstruction for ECG Compressed Sensing Using a Time-Normalized PCA Dictionary 基于时间归一化PCA字典的心电压缩感知重构
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8779960
P. Dolinský, I. András, J. Saliga, L. Michaeli
{"title":"Reconstruction for ECG Compressed Sensing Using a Time-Normalized PCA Dictionary","authors":"P. Dolinský, I. András, J. Saliga, L. Michaeli","doi":"10.23919/MEASUREMENT47340.2019.8779960","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8779960","url":null,"abstract":"Compressed sensing (CS), due to its computational simplicity is a perspective data reduction technique for remote ECG monitoring applications. In this paper, a novel method of reconstruction for CS of ECG signal is proposed, which uses a time-normalized agnostic dictionary created by the principal component analysis (PCA) of training signals. The proposed method exploits a QRS detector to split the input signal into variable-size frames and shows significantly better reconstruction quality compared against traditional orthogonal matching pursuit (OMP) approach with Mexican hat and Symlet4 wavelet dictionaries.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128739328","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: 2
Kinect-Based Platform for Movement Monitoring and Fall-Detection of Elderly People 基于运动学的老年人运动监测与跌倒检测平台
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8780004
J. Barabas, Tadeás Bednár, Miroslav Vychlopen
{"title":"Kinect-Based Platform for Movement Monitoring and Fall-Detection of Elderly People","authors":"J. Barabas, Tadeás Bednár, Miroslav Vychlopen","doi":"10.23919/MEASUREMENT47340.2019.8780004","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8780004","url":null,"abstract":"The presented article details our platform for movement monitoring and fall-detection of persons based on data acquired from a Microsoft Kinect v2 sensor. The proposed platform is programmed in the C# programming language for more efficient real-time analysis of the obtained spatial data and future modularity - allowing the integration of other data sources (e.g., thermal sensors, accelerometer data or electrocardiogram recordings) to create a sophisticated monitoring platform. The primary intended use of the platform is to monitor elderly people living alone and, in case of fall detection, transmit relevant information to relatives or medical staff and/or perform specific actions (e.g., turn off kitchen appliances).","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121158377","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: 6
Some Peculiarities of Causal Analysis of Coupled Chaotic Systems 耦合混沌系统因果分析的几个特点
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8780053
A. Krakovská
{"title":"Some Peculiarities of Causal Analysis of Coupled Chaotic Systems","authors":"A. Krakovská","doi":"10.23919/MEASUREMENT47340.2019.8780053","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8780053","url":null,"abstract":"On a test example of uni-directionally coupled Rössler systems we demonstrate some of the pitfalls of causal analysis of chaotic data. The method based on evaluating predictability in reconstructed state spaces is used here to detect causality. The results show that the predictability of the driven Rössler system is improved by incorporating information about the present state of the driver to the prediction process. The predictability improvement correctly reveals the presence and the direction of the coupling. However, causal analysis of the time-reversed test signals does not allow to uncover that the cause precedes the effect. In addition, causal analysis of complex systems may also encounter other complications such as transient chaos, or irreversibility of dissipative chaos sometimes masked by the dominance of limit cycles.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121210477","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
Statistical Estimation Applied to Electrocardiographic Imaging 统计估计在心电图成像中的应用
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8779856
Y. S. Dogrusoz
{"title":"Statistical Estimation Applied to Electrocardiographic Imaging","authors":"Y. S. Dogrusoz","doi":"10.23919/MEASUREMENT47340.2019.8779856","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8779856","url":null,"abstract":"Cardiovascular diseases are among the leading causes of death all over the world. Researchers have been extensively working on methods for early diagnosis and treatment of these diseases, with the goal of decreasing these death tolls. In Electrocardiographic Imaging (ECGI), the electrical activity of the heart is estimated from electrocardiographic measurements obtained from the body surface, using densely distributed electrodes, and a mathematical model of the body. This technique has advantages over classical electrocardiography (ECG) since it provides detailed information about the cardiac electrical activity without invasively recording measurements from the heart. From a mathematical point of view, this estimation problem is called the “inverse problem of ECG.” However, this problem is ill-posed, and a priori information should be used to regularize the solutions. This paper presents an overview of several regularization methods with emphasis on statistical estimation methods such as Bayesian Estimation and Kalman Filtering. These techniques are advantageous over traditional methods due to their flexibility in incorporating the spatial and temporal information of the heart potentials for solving the inverse ECG problem, and yielding confidence intervals that help assess the accuracy of the solutions.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133448379","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: 2
Thermovision Measurement and Diagnostics of Electrical Machines 电机热视觉测量与诊断
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8779912
M. Šebok, M. Kučera, M. Gutten, T. Kołtunowicz, P. Żukowski
{"title":"Thermovision Measurement and Diagnostics of Electrical Machines","authors":"M. Šebok, M. Kučera, M. Gutten, T. Kołtunowicz, P. Żukowski","doi":"10.23919/MEASUREMENT47340.2019.8779912","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8779912","url":null,"abstract":"This paper analyzes the problems of thermal measurement of electrical machines using thermovision diagnostics. It examines the experimental principles and uses of noncontact temperature measurement for diagnostics. The knowledge of the problem diagnostics of electrical machines in service without disassembly enables us to use more efficient thermo-diagnostic methods and to localize the failures that determine the quality of electrical machines.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121557218","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: 1
Monitoring of Hydroxyl Radical Induced Oxidation of Yeast Cells Using Biological Autoluminescence 利用生物自发光技术监测羟基自由基诱导酵母细胞氧化
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8779909
M. Bereta, M. Teplan, Petra Vahalová, M. Cifra
{"title":"Monitoring of Hydroxyl Radical Induced Oxidation of Yeast Cells Using Biological Autoluminescence","authors":"M. Bereta, M. Teplan, Petra Vahalová, M. Cifra","doi":"10.23919/MEASUREMENT47340.2019.8779909","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8779909","url":null,"abstract":"It is known that the excessive oxidative processes (oxidative stress) in organisms are correlated with various diseases. Here we show the non-invasive monitoring of oxidative stress of yeast Saccharomyces cerevisiae cells using biological autoluminescence (BAL). The physical nature of this specific phenomenon is briefly introduced, and the results of BAL measurements from yeast cell solutions with the presence of hydrogen peroxide and ferrous ions are presented. The results confirm the assumption that the BAL intensity is mediated by hydroxyl radical, produced by the Fenton reaction, which causes oxidation of cells and initiates biochemical reactions leading to BAL generation. Since oxidative stress induced BAL from yeast cells has not been widely analyzed before in the literature, our results could be a useful contribution to this field of research.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121323880","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
Granger Causality Inference and Time Reversal 格兰杰因果推理与时间反转
2019 12th International Conference on Measurement Pub Date : 2019-05-27 DOI: 10.23919/MEASUREMENT47340.2019.8779895
M. Chvosteková
{"title":"Granger Causality Inference and Time Reversal","authors":"M. Chvosteková","doi":"10.23919/MEASUREMENT47340.2019.8779895","DOIUrl":"https://doi.org/10.23919/MEASUREMENT47340.2019.8779895","url":null,"abstract":"A fundamental issue in the study of a complex system is the detection and characterization of causal dependence among components of the system. The system's components are represented by a set of selected and simultaneously recorded variables. Omitting observations of a relevant variable in a system, the Granger causality analysis can lead to false detections. Haufe et al. (2013) suggested using time reversal for testing Granger causality to alleviate the problem of spurious causality. Here we investigate the behavior of the so-called time-reversed Grange causality on different nonlinear dynamical systems with a known causal structure. As our experimental results show, the impact of a hidden influential variable cannot be excluded by using the time-reversed Granger causality. On the other hand, the time-reversed Granger causality, by the definition, can lead to false rejections in the case of a bidirectional causal connection between variables.","PeriodicalId":129350,"journal":{"name":"2019 12th International Conference on Measurement","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123879846","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: 2
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