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2009 International Conference on Advances in Computational Tools for Engineering Applications最新文献

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Decomposition and hierarchical control for discrete large scale system using neural networks 离散大系统的神经网络分解与层次控制
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227891
Najla Krichen Masmoudi, C. Rekik, M. Djemel, N. Derbel
{"title":"Decomposition and hierarchical control for discrete large scale system using neural networks","authors":"Najla Krichen Masmoudi, C. Rekik, M. Djemel, N. Derbel","doi":"10.1109/ACTEA.2009.5227891","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227891","url":null,"abstract":"This paper presents a method to compute sub-optimal control strategies of discrete time large scale nonlinear systems by neural networks. The method is based on the principle of decomposition of the global system into interconnected subsystems for which we consider that non-linearities are located in the interconnection terms. Then, a mixed method is considered to coordinate between different subsystems in order to compute the optimal control. So, for each subsystem, local optimal feedback gains are expressed in terms of the interconnection vector. For this purpose, neural networks have been used in order to identify these gains. Simulation results of a rotary crane show that the proposed method yields to satisfactory performances. The robustness of the proposed approach is analysed.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122038957","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
Harmony search algorithm optimization for preventive-maintenance-planning for transmission systems 输电系统预防性维护规划的和谐搜索算法优化
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227951
F. Harrou, A. Zeblah
{"title":"Harmony search algorithm optimization for preventive-maintenance-planning for transmission systems","authors":"F. Harrou, A. Zeblah","doi":"10.1109/ACTEA.2009.5227951","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227951","url":null,"abstract":"This paper combine the universal generating function UGF with harmony search (HSO) meta-heuristic optimization method to solve a preventive maintenance (PM) problem for series-parallel system. In this work, we consider the situation where system and its components have several ranges of performance levels. Such systems are called multi-state systems (MSS). To enhance system availability or (reliability), possible schedule preventive maintenance actions are performed to equipments and affect strongly the effective age. The MSS measure is related to the ability of the system to satisfy the demand. The objective is to develop an algorithm to generate an optimal sequence of maintenance actions providing system working with the desired level of availability or (reliability) during its lifetime with minimal maintenance cost rate. To evaluate the MSS system availability, a fast method based on UGF is suggested. The harmony search approach can be applied as an optimization technique and adapted to this PM optimization problem.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122386126","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: 4
E-learning in engineering education 工程教育中的电子学习
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227902
L. Lei
{"title":"E-learning in engineering education","authors":"L. Lei","doi":"10.1109/ACTEA.2009.5227902","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227902","url":null,"abstract":"E-learning is a new teaching method that is becoming more and more popular in recent years. This study looks at the outcomes of using games in education. Particularly, we examine a game that is used in a Distance Learning (DL) environment. Although we acknowledge the benefits of using simulations in the classroom, it seems that there are still many challenges educators will have to address in order to make this method more suitable for the education of today's students.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127830623","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: 9
Prospects for solar thermal energy use in residential buildings in Lebanon 黎巴嫩住宅建筑利用太阳能热能的前景
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227892
T. Salem
{"title":"Prospects for solar thermal energy use in residential buildings in Lebanon","authors":"T. Salem","doi":"10.1109/ACTEA.2009.5227892","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227892","url":null,"abstract":"Unlike most of its neighbouring countries, Lebanon is a small country with limited natural resources. The country imports around 97% of its needs of energy in the form of fossil fuel resulting in a high energy import bill. Despite major steps done towards improving the energy sector, the country is striving to meet the energy demand of its population. In order to face this problem, the use of renewable energy and particularly the solar thermal energy represent one of the most promising alternative strategies. Indeed, Lebanon is located in a relatively sunny area with an average global horizontal radiation of 2200 kWh/m2 per year. The residential sector represents 30% of the total energy consumption and thus offers an interesting opportunity for the development of the solar thermal market. In this paper an attempt is made to investigate the impact of the use of solar thermal equipments for heating and cooling on energy savings in the residential sector in Lebanon. The energy consumption is calculated for a typical building for four climatic zones using a validated transient simulation model. The payback period is calculated for each system in the four climatic zones. The analysis of the results showed that the solar domestic hot water system has a payback period of less than seven years, while the heating and cooling systems showed higher payback periods at current market prices. Prospects for the development of this sector are discussed at the end of this paper.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121330116","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
Risk management and security in service-based architectures 基于服务架构中的风险管理和安全性
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227927
Pascal Bou Nassar, Y. Badr, K. Barbar, F. Biennier
{"title":"Risk management and security in service-based architectures","authors":"Pascal Bou Nassar, Y. Badr, K. Barbar, F. Biennier","doi":"10.1109/ACTEA.2009.5227927","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227927","url":null,"abstract":"Improving security and reducing risks in enterprise information systems rely on analysing threats, risks and vulnerabilities to specify appropriate countermeasures. Risk assessments and information security remain a crucial challenge of small enterprise information systems. The problem increases its complexity with medium and large enterprise information systems, and becomes a bottleneck when different partners have to exchange information and collaborate through distributed business processes. In this paper, we distinguish between steady and dynamic environments in which information systems are deployed and monitored. We demonstrate that a global security policy must be adapted at any time to address new changes in dynamic environments cope with new challenges in risk management. We introduce a holistic approach for risk and security management through the definition of Service Characteristics Infrastructure (SCI) including certificate authorities, signed service characteristics, security policies.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126984975","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
Reduction of power field radiation for PLC applications 降低PLC应用的功率场辐射
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227885
M. Chaaban, G. Bousaleh, R. H. Chehade, A. Ismail, K. El Khamlichi Drissi, C. Pasquier
{"title":"Reduction of power field radiation for PLC applications","authors":"M. Chaaban, G. Bousaleh, R. H. Chehade, A. Ismail, K. El Khamlichi Drissi, C. Pasquier","doi":"10.1109/ACTEA.2009.5227885","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227885","url":null,"abstract":"In this article, we present our investigations on the radiation of the power-line communication (PLC) system. Power line communication or power line carrier is a technology for carrying data on a conductor usually dedicated to electric power transmission. At high frequency, the power lines, whose are dimensioned and adjusted for electrical energy transfer, not to carry high frequency (HF) data signal, act then as radiating antennas.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116155066","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: 4
Wideband antenna for WLAN applications 用于WLAN应用的宽带天线
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227884
Z. Katbay, S. Sadek
{"title":"Wideband antenna for WLAN applications","authors":"Z. Katbay, S. Sadek","doi":"10.1109/ACTEA.2009.5227884","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227884","url":null,"abstract":"One cannot overstate the importance of computational engineering and optimization in the global industrial economy, particularly as the systems we use grow more necessary and more complex (cellular telephone telecommunications systems, the electric power grid, the internet, air transport systems, etc.).","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129363420","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
SMOS image reconstruction algorithm: Extension of the band limited approach to the fully-polarimetric mode of MIRAS SMOS图像重建算法:将带限方法扩展到MIRAS的全偏振模式
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227912
A. Khazâal, É. Anterrieu
{"title":"SMOS image reconstruction algorithm: Extension of the band limited approach to the fully-polarimetric mode of MIRAS","authors":"A. Khazâal, É. Anterrieu","doi":"10.1109/ACTEA.2009.5227912","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227912","url":null,"abstract":"It is now well established that Synthetic Aperture Imaging Radiometers (SAIR) promise to be powerful sensors for high-resolution observations of the earth at low microwave frequencies. Within this context, the European Space Agency is currently developing the SMOS mission devoted to the monitoring of Soil Moisture and Ocean Salinity at global scale from Lband space borne radiometric observations obtained with a two-dimensional interferometer. This contribution is concerned with the reconstruction of radiometric brightness temperature maps from interferometric measurements. It extends the concept of band-limited resolving matrix to the case of the processing of full-polarimetric data.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128818584","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: 4
Video distribution over wireless networks with mobile-to-mobile cooperation 无线网络视频分发，手机对手机合作
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227883
Samer Al-Chikhani, L. Al-Kanj, Z. Dawy
{"title":"Video distribution over wireless networks with mobile-to-mobile cooperation","authors":"Samer Al-Chikhani, L. Al-Kanj, Z. Dawy","doi":"10.1109/ACTEA.2009.5227883","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227883","url":null,"abstract":"Cooperation among heterogeneous wireless networks is currently widely investigated to overcome the throughput and power limitations of state-of-the-art wireless technologies. The target objective of this work is to exploit mobile-to-mobile cooperation in order to lower energy consumption and increase system throughput in hybrid WLAN/Bluetooth wireless networks while guaranteeing quality of service. We model the problem of video distribution in wireless networks with mobile-to-mobile cooperation as an integer optimization problem that minimizes a given cost function. Cost is presented as a function of the energy consumption at mobile terminals, quality of service, and fairness. A genetic algorithm is used to solve the proposed problem and results demonstrate the potential gains of the proposed approach.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125599804","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
Optimal sensor network for fault diagnosis using structural analysis 基于结构分析的最优传感器网络故障诊断
2009 International Conference on Advances in Computational Tools for Engineering Applications Pub Date : 2009-07-15 DOI: 10.1109/ACTEA.2009.5227867
A. Chamseddine, H. Noura, D. Theilliol
{"title":"Optimal sensor network for fault diagnosis using structural analysis","authors":"A. Chamseddine, H. Noura, D. Theilliol","doi":"10.1109/ACTEA.2009.5227867","DOIUrl":"https://doi.org/10.1109/ACTEA.2009.5227867","url":null,"abstract":"This paper addresses the problem of instrumentation for fault detection and isolation in structured systems. The design of sensor networks is achieved by using structural analysis. This problem of sensor network design is formulated as nonlinear binary optimization problem. If the FDI problem is not solvable for an instrumented system, the strategy determines the additional sensors to be used to guarantee faults diagnosability. In addition, it is shown how to design a sensor network for non-instrumented systems while optimizing the number of sensors, the cost or the reliability of the network.","PeriodicalId":308909,"journal":{"name":"2009 International Conference on Advances in Computational Tools for Engineering Applications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117053138","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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