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EUROCON 2007 - The International Conference on "Computer as a Tool"最新文献

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An Evaluation of Neural Network Architecture Performance in Wireless Geo-Location 无线地理定位中神经网络架构性能的评估
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400360
J. Buhagiar, C. J. Debono
{"title":"An Evaluation of Neural Network Architecture Performance in Wireless Geo-Location","authors":"J. Buhagiar, C. J. Debono","doi":"10.1109/EURCON.2007.4400360","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400360","url":null,"abstract":"Wireless geo-location applications require robust algorithms that are capable of locating and/or tracking wireless users requesting the service. To this effect, the performance of three neural network architectures has been evaluated through simulation to determine the optimal performance algorithm that can be applied to these new applications, such as location based-services (LBS). The results indicate that neural networks having self-organizing characteristics quickly learn to adapt to the rapid changing radio environment as opposed to other architectures which take much longer. Typical figures indicate that this family of neural networks reaches performance advantages of 45% and above when compared to other neural families making then the ideal candidates for such applications.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134296733","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
An Energy Method for Determination of Flicker Source at the Point of Common Coupling 一种确定共耦合点闪烁源的能量法
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400457
A. F. Payam, B. M. Dehkordi, M. Sadri, M. Moallem
{"title":"An Energy Method for Determination of Flicker Source at the Point of Common Coupling","authors":"A. F. Payam, B. M. Dehkordi, M. Sadri, M. Moallem","doi":"10.1109/EURCON.2007.4400457","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400457","url":null,"abstract":"In this paper a new energy method for determination of flicker source in power system is proposed This method is based on the energy of flicker signal; therefore, an expression for flicker energy signals is defined, which can be successfully utilized for detection of the flicker source. The main advantage of this method is its simplicity which can be implemented in time domain and no transformation to frequency domain is required. There are good agreements between simulation and test results.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134264593","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: 12
Case Study, Connectivity of Oil and Water Wells at Saudi Aramco 案例研究，沙特阿美石油公司油水井连通性
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400637
M. Al-Ajmi
{"title":"Case Study, Connectivity of Oil and Water Wells at Saudi Aramco","authors":"M. Al-Ajmi","doi":"10.1109/EURCON.2007.4400637","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400637","url":null,"abstract":"This is an industry paper. Full text not available. Please contact the author for more information.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115273032","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
Application of the State Variables Method on Quickly Evaluation of the Harmonic Resonance Frequencies in a Transmission Line 状态变量法在快速求出输电线路谐振频率中的应用
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400417
A. Pana, A. Baloi, F. Molnar-Matei
{"title":"Application of the State Variables Method on Quickly Evaluation of the Harmonic Resonance Frequencies in a Transmission Line","authors":"A. Pana, A. Baloi, F. Molnar-Matei","doi":"10.1109/EURCON.2007.4400417","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400417","url":null,"abstract":"The harmonics propagation in a power network is directly influenced by the value of the equivalent harmonic impedance (seen) in each section of the network. The state variable method, initially applied for the automated systems study, has many other applications. One of them, presented in this paper, consists in a quick determination of the frequencies for which the harmonic impedance, as seen from a power network bus, exhibits poles (maximums - corresponding to parallel resonance) and zeroes (minimurns -corresponding to series resonance). The comparison of these frequencies with those of the harmonic currents - present in the network - allows a quick evaluation of the harmonics amplifying risk. The paper also presents the results of applying this method at the evaluation of the harmonic resonance frequencies on a transmission line, results later compared with those obtained with a classical method -the inversion of the network admittance matrix.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115634958","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: 3
Arrhythmia Detection using Wavelet Transform 小波变换检测心律失常
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400285
K. Daqrouq, I. Abu-Isbeih
{"title":"Arrhythmia Detection using Wavelet Transform","authors":"K. Daqrouq, I. Abu-Isbeih","doi":"10.1109/EURCON.2007.4400285","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400285","url":null,"abstract":"In this paper, a new method of arrhythmia classification is proposed, this method based on using the continuous wavelet transform (CWT) for analyzing the ECG signal and extracting the desired parameters related to arrhythmia (heart rate variability). Two models are used to simulate the natural signals of heart; these models are used for the assessment of ECG signal processing methods because they have the same characteristics of the natural signals. Another application is the simulation of some cardiac phenomena and abnormalities such as Normocardia, Bradycardia and Tachycardia. The proposed method gives sharp clear threshold between Normocardia, Bradycardia and Tachycardia.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114359561","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: 11
Thermographical Investigation of Crack Initiation Using Artificial Neural Networks 基于人工神经网络的裂纹起裂热分析
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400354
M. Selek, O. Sahin, S. Kahramanli
{"title":"Thermographical Investigation of Crack Initiation Using Artificial Neural Networks","authors":"M. Selek, O. Sahin, S. Kahramanli","doi":"10.1109/EURCON.2007.4400354","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400354","url":null,"abstract":"In this study, a thermographic infrared imaging system was used to detect the temperature rise of AISI37 steel specimen under reverse bending fatigue. Fatigue behavior of metals shows temperature profiles with three stages: an initial increase of the specimen mean temperature region, a constant (equilibrium) temperature region, an abrupt temperature increase region at end of which the specimen fails and its temperature falls instantly. In order to recognize critical third region, it is necessary to observe endurance state of the specimen being tested. In this study, the temperature profiles of the specimen under testing are recorded by thermal camera and transferred to the image processing program. The artificial neural networks obtain spot temperatures of the inspected specimen by using its temperature profiles. By analyzing the values of obtained data, we detect spots of highest temperatures as ones that are exposed to most intensive deformation. These regions considered to be probable crack initiation sites.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114710304","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
Space-Vector Modulation Algorithm for Multilevel Three-Phase Inverter 多电平三相逆变器的空间矢量调制算法
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400643
V. M. Berestov
{"title":"Space-Vector Modulation Algorithm for Multilevel Three-Phase Inverter","authors":"V. M. Berestov","doi":"10.1109/EURCON.2007.4400643","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400643","url":null,"abstract":"This paper introduces a general space-vector modulation algorithm for n-level three-phase inverters. The algorithm is computationally extremely efficient and is independent of the number of inverter levels. At the same time, it provides good insight into the operation of multilevel inverters.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114467098","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
Accuracy of EM Simulation Tools in Modeling of Resonant Left-Handed Microstrip Lines 电磁仿真工具在左旋谐振微带线建模中的准确性
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400520
V. Radonić, V. Crnojević-Bengin, B. Reljić, B. Jokanović
{"title":"Accuracy of EM Simulation Tools in Modeling of Resonant Left-Handed Microstrip Lines","authors":"V. Radonić, V. Crnojević-Bengin, B. Reljić, B. Jokanović","doi":"10.1109/EURCON.2007.4400520","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400520","url":null,"abstract":"Split ring resonators and complementary split ring resonators are used in left-handed media to obtain negative values of permeability and permittivity, respectively. A typical resonant left-handed (LH) microstrip line, composed of complementary split ring resonators (CSSR) and capacitive gaps in the microstrip, exhibits a pass-band behavior. However, a significant shift between the measured and simulated values of the central frequency of the pass-band always occurs. In this paper, three widely used full-wave simulation tools: Ansoft's high frequency structure simulator, EMSight in Microwave Office, and IE3D from Zeland Software Inc., are compared for the case of resonant LH transmission lines. The simulation results are compared with the measured data.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116131257","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: 5
Comparative Analysis of Three Structures of High-Voltage Frequency Converters for Asynchronous Electric Drive 异步电驱动高压变频器三种结构的比较分析
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400606
I. A. Bakhovtsev, N. Lopatkin, A. Usachev, G. Zinoviev
{"title":"Comparative Analysis of Three Structures of High-Voltage Frequency Converters for Asynchronous Electric Drive","authors":"I. A. Bakhovtsev, N. Lopatkin, A. Usachev, G. Zinoviev","doi":"10.1109/EURCON.2007.4400606","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400606","url":null,"abstract":"Development of high-voltage converters of frequency is one of actual problems of the modern adjustable electric drive of an alternating current. Construction of high-voltage frequency converters goes in the following directions. First, on the basis of the developed converters of frequency 0.4 kV and 0.69 kV, added with the output high-voltage transformer. Second, by construction of multilevel frequency converters on the basis of new decisions. The combined way when multilevel frequency converters are created on the basis of the combined connection of the fulfilled three-phase bridge VSI cells. In the report the comparison of three variants of high-voltage frequency converters for 6 kV the asynchronous machine of the pump by power 500 kW and higher is made on the basis of the combined way.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116151622","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
A Genetic Algorithm Approach to User Location Estimation in UMTS Networks 基于遗传算法的UMTS网络用户位置估计
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400320
M.J. Magro, C. J. Debono
{"title":"A Genetic Algorithm Approach to User Location Estimation in UMTS Networks","authors":"M.J. Magro, C. J. Debono","doi":"10.1109/EURCON.2007.4400320","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400320","url":null,"abstract":"An innovative solution to user location estimation in 3G networks is presented. The proposed solution uses network information such as Cell-ID and transmitted signal strength, which are easily captured by current 3G mobile handsets, as input to a location detection algorithm which searches the whole network coverage area for the most probable point of origin. This search is performed within a software model of the radio network, which faithfully replicates the provider's live network. The algorithm was optimized through the application of a genetic algorithm to provide an estimate of the user's location in quasi real-time. Simulation results demonstrate that allowing for a 450 m error, the algorithm is capable of locating the user's position in 72% of the cases within an urban environment.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115002500","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: 13
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