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2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)最新文献

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Okumura-hata model tuning for TETRA mobile radio networks in Saudi Arabia 沙特阿拉伯TETRA移动无线网络的Okumura-hata模型调谐
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462901
M. Alamoud, W. Schutz
{"title":"Okumura-hata model tuning for TETRA mobile radio networks in Saudi Arabia","authors":"M. Alamoud, W. Schutz","doi":"10.1109/ICTEA.2012.6462901","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462901","url":null,"abstract":"Network designers rely heavily on path-loss models to predict outdoor radio coverage areas within a certain error using conventional propagation models designed for systems prior to 4G. This paper provides Radio Frequency (RF) engineers and regulators with a reference that presents results of tuning the Okumura-Hata model to increase its accuracy to be used for TErrestrial Trunked RAdio (TETRA) mobile radio applications in Saudi Arabia. It includes correction factors based on measurement campaigns conducted in eight small-medium cities in Saudi Arabia. The selected cities covered all clutter classes that can be found in the country.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115605349","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
Capacitive loading for miniaturization and performance improvement of transmission lines 用于输电线路小型化和性能改进的容性负载
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462856
H. Issa, J. Duchamp, S. Abou-Chahine, P. Ferrari
{"title":"Capacitive loading for miniaturization and performance improvement of transmission lines","authors":"H. Issa, J. Duchamp, S. Abou-Chahine, P. Ferrari","doi":"10.1109/ICTEA.2012.6462856","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462856","url":null,"abstract":"Loading transmission lines by capacitors is an effective way of miniaturization. The general equation of the quality factor of loaded transmission line section is derived. A careful comparison is, then, carried out between loaded transmission lines and unloaded equivalent ones realized on low-cost substrate and on a good-quality substrate. Results show that the Q-factor of transmission lines can be increased by capacitive loading, with a trade-off between the quality factor and the miniaturization. These conclusions are confirmed by experimental results on a miniaturized DBR filter. The measurements show that the low-cost substrate performs better than the good-quality high-cost one.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126808264","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
General and complete 2D TLM curvilinear node 一般和完全二维TLM曲线节点
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462851
H. Youssef, H. Elmokdad, J. Jomaah, H. Ayad
{"title":"General and complete 2D TLM curvilinear node","authors":"H. Youssef, H. Elmokdad, J. Jomaah, H. Ayad","doi":"10.1109/ICTEA.2012.6462851","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462851","url":null,"abstract":"A new general and complete TLM 2-D curvilinear node has been developed in this paper. Also, the performance and the accuracy of this new node have been demonstrated confirmed in two particular curvilinear 2-D nodes: the cylindrical and the elliptic. In addition, we have shown that the use of “average's parameters values” in the algorithm gives accurate results and efficient simulation. This remark facilitates the use of other particular curvilinear meshes. This allows the extension of this node into a similar 3-D curvilinear node.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127042279","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
An ontology-based system to dynamically extract multimedia elements for children's tutorials 基于本体的儿童教程多媒体元素动态提取系统
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462888
J. M. Alja'am, M. Mwinyi, Sami Elzeiny, Amal Dandashi, A. Jaoua
{"title":"An ontology-based system to dynamically extract multimedia elements for children's tutorials","authors":"J. M. Alja'am, M. Mwinyi, Sami Elzeiny, Amal Dandashi, A. Jaoua","doi":"10.1109/ICTEA.2012.6462888","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462888","url":null,"abstract":"Children with intellectual disabilities are very challenging to teach, and can learn best with the use of different methodologies that engage their senses, such as using images, sounds and clips. In this work, a new educational system that can generate multimedia based tutorials dynamically is proposed. This system comprises of several components; (1) using a Stemming algorithm for text processing, (2) Formal Concept Analysis for dynamic extraction of keywords, (3) Ontology based concept extraction, (4)Google API is used to query the Google Image Database and extract the required multimedia elements, which are then mapped accordingly. A database of keywords, associated synonyms and multimedia elements is built, hence every student can have his/her own database. Instructors can then update and change the contents of their tutorials speedily and efficiently.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124930000","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 symbolic method for the web service composition problem web服务组合问题的符号方法
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462862
H. Farhat, G. Feuillade
{"title":"A symbolic method for the web service composition problem","authors":"H. Farhat, G. Feuillade","doi":"10.1109/ICTEA.2012.6462862","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462862","url":null,"abstract":"The behavioral composition of services entails the computation of the asynchronous product of automata. The resulting product is tested for bisimulation equivalence with the requested service. This equivalence testing becomes infeasible when the number of services is large. In this paper we propose a symbolic method, based on OBDD, to make the computation feasible. The efficiency of our solution stems from the fact that, in addition to the inherent efficiency of the OBDD method, the OBDD of the product need not be stored in memory but is computed as a disjunction of the individual terms.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133520624","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
A novel Petri net model for image segmentation Entropic thresholding based methods 基于熵阈值分割的Petri网图像分割方法
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462906
L. Mahmoudi, Alaa Al Azawi, A. El Zaart, A. Haidar
{"title":"A novel Petri net model for image segmentation Entropic thresholding based methods","authors":"L. Mahmoudi, Alaa Al Azawi, A. El Zaart, A. Haidar","doi":"10.1109/ICTEA.2012.6462906","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462906","url":null,"abstract":"This paper presents a Petri net-based hierarchical architecture for image segmentation concept; the work shows our analytical methodologies for modeling and analysis of image segmentation entropic thresholding based methods. The goal of this paper is to model the image segmentation concept using Petri net.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133921323","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
Tensile behaviors of aluminum matrix composites in extrusion simulation experiments 挤压模拟试验中铝基复合材料的拉伸行为
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462887
A. Nassar, E. Nassar
{"title":"Tensile behaviors of aluminum matrix composites in extrusion simulation experiments","authors":"A. Nassar, E. Nassar","doi":"10.1109/ICTEA.2012.6462887","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462887","url":null,"abstract":"This research studies the effect of a range of variables on the properties of A356 aluminum reinforced with silicon carbide particles after extrusion process. These variables are the ratio of liquid material and the percentage of particles. The percentage of carbide particles used was 10%, 15% and 20%. %. The composites were prepared by vortex method. Experimental results were compared with the simulation results which were obtained by finite element method and neural network method. The results of the tensile tests conducted at room temperature for reinforced alloys before forming and after forming showed that the increase in the weight of silicon carbide particles caused a decrease in the tensile stress and strain in the as cast state. The deformed composites followed the same behavior, but with marked improvement in the maximum tensile stress and yield stress of the composites which was formed at 585 degrees Celsius and the improvement was less in the case of composites that have been formed at 595 degrees Celsius.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132799769","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 investigation of Beirut soil properties 贝鲁特土壤性质调查
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462863
E. Ibrahim, D. A. Massih, J. Harb
{"title":"An investigation of Beirut soil properties","authors":"E. Ibrahim, D. A. Massih, J. Harb","doi":"10.1109/ICTEA.2012.6462863","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462863","url":null,"abstract":"The aim of this study is to set a foundation for mapping Beirut soils using available soil reports obtained from excavations. With the availability of a certain number of excavations and soil reports, one could attempt to gather soil data in order to understand the subbase and map the stratigraphy of the city. However, only a limited number of boreholes and soil data are available. Consequently, the use of innovative methods to analyze and assess limited numbers of heterogeneous data is necessary for developing countries where data is generally scarce. The paper investigates the available soil report data, specifically soil cohesion (c), soil friction angle (φ), and soil type classification. The results show that soil cohesion and the soil friction angle of Beirut have a high negative correlation r2 = -0.71. Then, a mixture of Gaussians (MG) clustering approach is utilized to find meaningful patterns in the data, and thus resulting in three categories according to which the soil is to be mapped in future work. The categories are related to ranges in values of c and φ and their corresponding soil types.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126172989","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 novel approach to the eye movement analysis using a high speed camera 一种利用高速摄像机进行眼动分析的新方法
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462854
Krystian Radlak, B. Smolka
{"title":"A novel approach to the eye movement analysis using a high speed camera","authors":"Krystian Radlak, B. Smolka","doi":"10.1109/ICTEA.2012.6462854","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462854","url":null,"abstract":"In this paper a new method of eye blink detection and analysis is proposed. The described technique is based on a combination of spatial and temporal derivatives calculated in video sequences acquired with a high speed camera. The pixels of each frame are divided into two groups according to the direction and magnitude of the hybrid gradient vectors and the distance between their centers of gravity is used for the determination of the eye movement characteristics. Preliminary experiments revealed a high detection rate of eye blinks, which is not dependent on the change of head position. The proposed technique can also be used for the analysis of eye movements and can be utilized in systems which are monitoring human fatigue, drowsiness and emotional states.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127992265","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: 22
Rolling Bearing Diagnosis using Cyclostationary tools and neural networks 基于循环平稳工具和神经网络的滚动轴承诊断
2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA) Pub Date : 2012-12-01 DOI: 10.1109/ICTEA.2012.6462844
S. El-Samad, A. Raad
{"title":"Rolling Bearing Diagnosis using Cyclostationary tools and neural networks","authors":"S. El-Samad, A. Raad","doi":"10.1109/ICTEA.2012.6462844","DOIUrl":"https://doi.org/10.1109/ICTEA.2012.6462844","url":null,"abstract":"Rotating machines are ubiquitous in the context of industrial control; early detection of their mechanical defects plays an important role for productivity and economic high gain. These defects are currently characterized by randomness and hidden periodicities. We propose in this regard is the study of the cyclical aspect of these defects by studying statistical tools in areas such as coherence spectrum. Applications on bearings are designed to show the impact of these tools.","PeriodicalId":245530,"journal":{"name":"2012 2nd International Conference on Advances in Computational Tools for Engineering Applications (ACTEA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129705191","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
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