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

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Computer as a Tool in Teaching, Examining and Assessing Electronic Engineering Students 计算机在电子工程专业学生教学、考核和评价中的应用
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400672
P. Tsiakas, C. Stergiopoulos, D. Nafpaktitis, D. Triantis, I. Stavrakas
{"title":"Computer as a Tool in Teaching, Examining and Assessing Electronic Engineering Students","authors":"P. Tsiakas, C. Stergiopoulos, D. Nafpaktitis, D. Triantis, I. Stavrakas","doi":"10.1109/EURCON.2007.4400672","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400672","url":null,"abstract":"The department of electronic engineering of the Technological Educational Institution (T.E.I.) of Athens is in the process of incorporating the use of modern tools based on new technologies in the teaching procedures applied in the academic environment. This work presents how computers and software applications enhance the method of teaching the core module of \"Power Electronics\" which is considered of high importance for graduates of the field. The educational portal and software simulations support this effort while electronic examinations evaluate the level of knowledge assimilation. Features, advantages, practices and first results of their implementation are presented and discussed.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"29 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":"123036519","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: 10
Performance of Multi-Amplitude Minimum Shift Keying (N-MSK) with Orthogonal Frequency Division Multiplexing (OFDM) 正交频分复用(OFDM)多幅最小移键控(N-MSK)性能
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400355
A. Eltholth, A.R. Mikhail, A. Elsherbini, M. Dessouky, A. AbdelFattah
{"title":"Performance of Multi-Amplitude Minimum Shift Keying (N-MSK) with Orthogonal Frequency Division Multiplexing (OFDM)","authors":"A. Eltholth, A.R. Mikhail, A. Elsherbini, M. Dessouky, A. AbdelFattah","doi":"10.1109/EURCON.2007.4400355","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400355","url":null,"abstract":"Multi-carrier transmission, especially orthogonal frequency division multiplexing (OFDM), has gained interest due to its advantageous properties for mobile radio channels. Obviously, as a multi-carrier modulation technique, it's inherently high Peak to Average power Ratio (PAR) is one of the most obstacles facing OFDM to be used for mobile wireless applications. In this paper we introduce a novel approach to solve this problem by using one of the continuous phase modulation techniques, which is the MSK in OFDM, and we will extend to N-MSK for boosting the spectral efficiency and maintaining PAR in an acceptable range. Finally, we prove that the use of N-MSK into OFDM has numerous advantages compared to the conventional use of M-QAM into OFDM through Matlab simulations of the proposed system models to compare between MSK and N-MSK (N=2, 3, 4) to be used for OFDM. Also we highlight the benefits of using N-MSK over M-QAM Modulators into OFDM with the same spectral efficiency.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"10 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":"114256500","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
Use of Distributed Traffic Simulation in the JUTS Project 分布式交通仿真在交通科技大学项目中的应用
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400273
T. Potuzak, P. Herout
{"title":"Use of Distributed Traffic Simulation in the JUTS Project","authors":"T. Potuzak, P. Herout","doi":"10.1109/EURCON.2007.4400273","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400273","url":null,"abstract":"In this paper, the main issues of distributed simulation in the field of urban traffic are described. This distributed simulation is based on the JUTS (Java Urban Traffic Simulator) system, which is used for modeling and analysis of traffic in cities at microscopic level of detail. Because the detailed simulation of large areas performed on a single-processor computer consumes unbearable amount of time, the possible modifications of the JUTS system for distributed computational environment are introduced.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"147 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":"114562393","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: 16
Baseband Transmission Channel Parameters Analysis in DVB Video and Signal Processing DVB视频与信号处理中基带传输信道参数分析
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400510
T. Kratochvil
{"title":"Baseband Transmission Channel Parameters Analysis in DVB Video and Signal Processing","authors":"T. Kratochvil","doi":"10.1109/EURCON.2007.4400510","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400510","url":null,"abstract":"The paper deals with the baseband transmission channel analysis applied in Digital Video Broadcasting (DVB) transmission model. The transmission channel model is based on the digital filter design and it can be designed with the variable transmission parameters (cut-off frequency eg.) and linear distortions with additive noise or reflected signal. Results of achieved Bit Error Rate (BER) and Symbol Error Rate (SER) and corresponding Picture Quality Evaluation (PQE) analysis are presented, including the evaluation of subjective picture quality influence on normalized cut-off frequency of the channel, relative amplitude of additive noise and reflected signal.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"34 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":"129572059","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
Collision Detection in Computer Simulations for Wrist Arthroscopic Surgery Training 腕部关节镜手术训练计算机模拟中的碰撞检测
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400448
F. Yaacoub, Y. Hamam, A. Abche
{"title":"Collision Detection in Computer Simulations for Wrist Arthroscopic Surgery Training","authors":"F. Yaacoub, Y. Hamam, A. Abche","doi":"10.1109/EURCON.2007.4400448","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400448","url":null,"abstract":"Computer-Based surgical simulators are one of the most recent topics in virtual reality development. They have become the training method and the tool to acquire valuable information for many medical students and medical practitioners. The real-time interactive collision detection is an important problem that must be addressed to make such simulators more realistic. In this regard, this paper addresses the issue of precise collision detection between virtual objects and proposes a new technique. First, the convex hull of each object is constructed. Then, the problem is formulated and a linear programming solution is obtained to determine whether a collision exists or not. The algorithm is tested on a medical application. The proposed collision detection approach is compared with two conventional algorithms namely the IVRI-CD and SWIFT techniques and validated using a 3D wrist model. A Haptic feedback system is implemented for evaluation purposes. The results show that the proposed approach is efficient, accurate, fast and robust in detecting collision between virtual objects during training and experimenting surgery.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"31 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":"129612531","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
Oil and Gas Applications in Saudi Aramco - Challenge Partners 石油和天然气在沙特阿美公司的应用——挑战合作伙伴
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400631
A. Al-Mulla
{"title":"Oil and Gas Applications in Saudi Aramco - Challenge Partners","authors":"A. Al-Mulla","doi":"10.1109/EURCON.2007.4400631","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400631","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":"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":"124638535","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
Identification of Dead-Time Influence on The Output Voltage of the Inverter Controlled by Non-Linear Controllers 非线性控制器控制逆变器输出电压的死区影响辨识
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400559
A. Sikorski, M. Korzeniewski, A. Ruszczyk
{"title":"Identification of Dead-Time Influence on The Output Voltage of the Inverter Controlled by Non-Linear Controllers","authors":"A. Sikorski, M. Korzeniewski, A. Ruszczyk","doi":"10.1109/EURCON.2007.4400559","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400559","url":null,"abstract":"The influence of the dead-time on a inverter VSI output voltage vector controlled by SVM where the switching sequence is defined, is well known. Towards of the inverters used nonlinear controllers, where the sequence of the succeeding voltage vectors maybe of one's choice, the dead-time influence evaluation is different. The method evaluation of dead-time influence on the output voltage of the inverter controlled by nonlinear controllers is presented in the article. The laboratory test results confirm correctness of this analysis and elaborated correction algorithm.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"6 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":"129931121","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
Edge Preserving Regularization for the Piecewise Smooth Mumford-Shah Model 分段光滑Mumford-Shah模型的保边正则化
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400412
Yingjie Zhang, L. Ge
{"title":"Edge Preserving Regularization for the Piecewise Smooth Mumford-Shah Model","authors":"Yingjie Zhang, L. Ge","doi":"10.1109/EURCON.2007.4400412","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400412","url":null,"abstract":"In this paper, an improved segmentation algorithm for the piecewise smooth Mumford-Shah model is proposed. In which a new strategy for the computation of the diffusion item in the model is introduced that induces edge-preserving regularization thus also facilitate the image segmentation. Different from the previous approaches, at each iteration, the smoothing item in proposed algorithm is computed along an approximate contour that is obtained based on the difference between the two unknown functions u and u\" that have been extended to the whole image domain. And a narrowband of the approximate contour also is given to reduce the area of the region to be smoothed. As a result, good edge preserving properties have been achieved. The improved approach not only addresses some drawbacks of the original algorithm such as the effect of the local characteristics of images on the curve evolving path and initial curve's effect on the segmentation results, but save computational cost greatly. The resulting algorithm has been implemented with Visual C++6.0, and several experimental results have been provided and compared with the original method. The result demonstrated the effectiveness of the proposed algorithm.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"3 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":"123952702","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 Enhanced Centered Binary Tree of SVMs Algorithm for Phoneme Recognition 一种增强的支持向量机中心二叉树音位识别算法
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400272
O. Gauci, C. J. Debono, P. Micallef
{"title":"An Enhanced Centered Binary Tree of SVMs Algorithm for Phoneme Recognition","authors":"O. Gauci, C. J. Debono, P. Micallef","doi":"10.1109/EURCON.2007.4400272","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400272","url":null,"abstract":"Support vector machines (SVMs) have lately emerged as very powerful binary classifiers, however their extension for multiclass classification is still an open area of research. When SVMs are applied to phoneme recognition, the large number of classes within this data set limits the practical use of these learning machines. In this paper we present the application of the centered binary tree of SVMs (c-BTS) algorithm, which is a multi-category classifier, to phoneme recognition. To enhance its capabilities, the c-BTS algorithm has been modified by using different posterior probability measurements to build the binary tree. The proposed algorithm has been tested through simulations on a number of phonemes taken from the TIMIT database. Results show that the proposed modification enhances the accuracy of the c-BTS algorithm while maintaining comparable computation times during testing. Moreover, this solution offers equivalent accuracies to other multiclass recognition methods.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"21 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":"121177182","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
Multilevel Inverter with 18-sided Polygonal Voltage Space Vector for an Open-end Winding Induction Motor Drive 开放式绕组感应电机驱动的18面多边形电压空间矢量多电平逆变器
EUROCON 2007 - The International Conference on "Computer as a Tool" Pub Date : 2007-12-26 DOI: 10.1109/EURCON.2007.4400222
S. Lakshminarayanan, G. Mondal, K. Gopakumar
{"title":"Multilevel Inverter with 18-sided Polygonal Voltage Space Vector for an Open-end Winding Induction Motor Drive","authors":"S. Lakshminarayanan, G. Mondal, K. Gopakumar","doi":"10.1109/EURCON.2007.4400222","DOIUrl":"https://doi.org/10.1109/EURCON.2007.4400222","url":null,"abstract":"A simple multilevel inverter scheme with 18-sided polygonal voltage space vector structure is proposed for an induction motor drive with an open-end winding configuration. The motor is fed from one end with a conventional two-level inverter and from the other end with a three level inverter, realised by cascading two conventional two-level inverters. The inverters are fed with asymmetrical DC link voltages. A simple linear PWM control scheme up to 18-step mode is proposed, based only on the motor reference phase amplitudes. The present scheme does not require complicated signal processing and control loop, as in the case of PWM scheme with conventional hexagonal voltage space vector structure, in over modulation regions. The proposed scheme gives and increased modulation range with the elimination of 5th 7th 11th and 13th order harmonics, when compared to any conventional schemes.","PeriodicalId":191423,"journal":{"name":"EUROCON 2007 - The International Conference on \"Computer as a Tool\"","volume":"4 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":"121191774","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: 8
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