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2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology最新文献

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Multi-step powder casting and x-ray lithography of SU-8 resist for complicated 3D microstructures SU-8抗蚀剂的多步粉末铸造和x射线光刻
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600553
R. Phatthanakun, P. Songsiriritthigul, P. Klysubun, N. Chomnawang
{"title":"Multi-step powder casting and x-ray lithography of SU-8 resist for complicated 3D microstructures","authors":"R. Phatthanakun, P. Songsiriritthigul, P. Klysubun, N. Chomnawang","doi":"10.1109/ECTICON.2008.4600553","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600553","url":null,"abstract":"This paper presents a method to realize complicated 3D microstructures for MEMS applications by multi-step SU-8 thick film preparation and X-ray lithography. SU-8 photoresist powder with solvent content of 7% is prepared by spin coating of standard SU-8 on a polymide sheet laminated aluminum plate. followed by baking and grinding. In reflow casting, a specific amount of SU-8 powder is loaded into a container formed by a square PDMS frame attached on a glass substrate. After heating, SU-8 powder melts and reflow resulting in a SU-8 thick film of a specific thickness. With sequential reflow casting and X-ray lithography, multilayer 3D microstructures of SU-8 can be obtained. A mathematical model is developed to find a suitable amount of SU-8 powder needed for powder casting of each consecutive layer based on SU-8 density, size of the casting frame and areas occupied by microstructures form previous layer. Fabrication of complicated three-layer 3D microstructures is demonstrated. The method can be used to fabricate all polymer MEMS devices as well as sacrificial micromold of microparts.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124219254","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
A body-shadowing model for indoor UWB communication environments 室内超宽带通信环境的人体阴影模型
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600422
W. Seesai, M. Chamchoy, S. Promwong
{"title":"A body-shadowing model for indoor UWB communication environments","authors":"W. Seesai, M. Chamchoy, S. Promwong","doi":"10.1109/ECTICON.2008.4600422","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600422","url":null,"abstract":"Radio channel characteristic is a very important factor for designing indoor UWB communication network. As we know, the indoor communication channel is limited by geometry of room and some obstruction in that room such as furniture, human operator, etc. These obstructions directly affect to quality of received signal, especially human who usually obstruct receiving signal. To efficient the network designing, the influence of human body shadowing on radio propagation in building UWB communication is investigated by involving propagation prediction model. This model will predict characteristics of the received signal affected from body shadowing by considering many wave propagation phenomenons such as reflection, refraction, absorption, etc. based on ray-tracing technique. The predicted results are shown in various forms such as power loss of received signal, mean excess delay and power delay profile. To verify the validation of the model, these results will be compared with the measured results. It is found that the measurement and prediction results are closely related.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114210103","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
Robust constrained model predictive control for linear time-varying systems with norm-bounded uncertainty 范数有界不确定性线性时变系统的鲁棒约束模型预测控制
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600502
V. Kunnee, D. Banjerdpongchai
{"title":"Robust constrained model predictive control for linear time-varying systems with norm-bounded uncertainty","authors":"V. Kunnee, D. Banjerdpongchai","doi":"10.1109/ECTICON.2008.4600502","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600502","url":null,"abstract":"In this paper, we propose a robust constrained model predictive control (RCMPC) for stabilizing processes with norm-bounded uncertainty. This type of uncertainty is used to avoid on-line computational burdens. The robust stability comes with a guarantee described by parameter-dependent Lyapunov function (PDLF). The control law based on PDLF is potentially less conservative than that based on single Lyapunov function (SLF), due to additional degree of freedom. We give numerical examples based on a single non-isothermal CSTR system to illustrate the effectiveness of this algorithm.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124486903","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
The conceptual framework for the development of Thailand economic animal traceability system 泰国经济动物溯源系统发展的概念框架
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600407
S. Mukviboonchai, Piya Kovintaweewat, Dech Thammasiri
{"title":"The conceptual framework for the development of Thailand economic animal traceability system","authors":"S. Mukviboonchai, Piya Kovintaweewat, Dech Thammasiri","doi":"10.1109/ECTICON.2008.4600407","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600407","url":null,"abstract":"Animal traceability is crucial to human health in food safety. It is one of the most concerned issues in developed countries. Animal backgrounds including feeding, decease, medicine, vaccine, health check, movement, and so on, are essential information for customers to ensure the safety of the meat they purchased. Thailand exports economic animals, e.g., swine and poultry, to other countries. Therefore, it is needed to prepare the animal traceability system to support such requirements. This paper presents the conceptual framework for the development of Thailand economic animal traceability system to serve as a guideline to the implementation of food safety in meat supply chain.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124087283","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
A reconfiguration technique for cascaded H-bridge multilevel inverter drives 级联h桥多电平变频器的重构技术
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600599
S. Khomfoi
{"title":"A reconfiguration technique for cascaded H-bridge multilevel inverter drives","authors":"S. Khomfoi","doi":"10.1109/ECTICON.2008.4600599","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600599","url":null,"abstract":"A reconfiguration technique for cascaded H-bridge multilevel inverter drives (CMID) is proposed in this paper. The reliability of the CMID can be improved by using the proposed reconfiguration technique. The proposed technique is very simple to implement because the proposed technique is based on digital logic gate; a simple AND gate and OR gate can be implemented for this reconfiguration method. The effects and limitations of using the developed reconfiguration technique at high modulation index are also addressed.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126330325","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
A simple switched beam antenna system for a beacon node localization in wireless sensor networks 一种用于无线传感器网络信标节点定位的简单交换波束天线系统
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600411
D. Worasawate, T. Kasetkasem, V. Kesornpatumanun, A. Noymai, P. Klongpramong, A. Ampungart
{"title":"A simple switched beam antenna system for a beacon node localization in wireless sensor networks","authors":"D. Worasawate, T. Kasetkasem, V. Kesornpatumanun, A. Noymai, P. Klongpramong, A. Ampungart","doi":"10.1109/ECTICON.2008.4600411","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600411","url":null,"abstract":"This work presents a simple switched beam antenna system for the localization system in wireless sensor networks (WSNs). The element patterns are chosen for the requirements. A simple beamforming network is fabricated and tested. The antenna patterns for the system are numerically computed in unbounded free space and compared with the ones measured in the indoor environment. The results show that the system provides space diversity in the indoor environment. This space diversity can be used in the localization algorithm to improve its accuracy.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125712062","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
Effects of IEEE 802.15.1 interference on RFID communication system at 2.45 GHz IEEE 802.15.1干扰对2.45 GHz射频识别通信系统的影响
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600460
U. R-yohsae, S. Promwong, N. Sukutamatanti
{"title":"Effects of IEEE 802.15.1 interference on RFID communication system at 2.45 GHz","authors":"U. R-yohsae, S. Promwong, N. Sukutamatanti","doi":"10.1109/ECTICON.2008.4600460","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600460","url":null,"abstract":"RFID and IEEE 802.15.1(Bluetooth) technology are used the same 2.45 GHz Industrial Scientific and Medical (ISM) frequency band. This paper analyzes about interference effect from bluetooth to performance of RFID system at 2.45 GHz. From our study, it indicates that IEEE 802.15.1 interference can cause a significant increase in the bit error rate (BER) and the radio propagation loss of RFID system due to bluetooth interference.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121961763","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
Microwave filter education supported by wave iterative simulation program 微波滤波教育支持的波迭代仿真程序
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600426
S. Kamkleing, S. Akatimagool
{"title":"Microwave filter education supported by wave iterative simulation program","authors":"S. Kamkleing, S. Akatimagool","doi":"10.1109/ECTICON.2008.4600426","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600426","url":null,"abstract":"In this paper, a new simulation program of a 2D full wave analysis is described. This numerical analysis is based on the Wave Iterative Method (WIM), employing a graphics user interface (GUI) of MATLABreg on Microsoft Window XP computer. Since most students can easily access to such machines, it is possible to employ this field simulator as an ldquoElectromagnetic Simulation Programrdquo, to improve student learning efficiency of traditional teaching in microwave engineering courses. The main features of the WIM Simulator are summarized, and an example of WIM simulator for the classroom is presented.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"109 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113934838","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
Performance analysis of SPE-OCDMA over WDM networks WDM网络上SPE-OCDMA的性能分析
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600443
K. Puntsri, S. Sittichivapak, H. Shalaby
{"title":"Performance analysis of SPE-OCDMA over WDM networks","authors":"K. Puntsri, S. Sittichivapak, H. Shalaby","doi":"10.1109/ECTICON.2008.4600443","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600443","url":null,"abstract":"This paper presents a performance analysis of SPE-OCDMA (spectrally phase-encoded optical CDMA) over WDM networks. The discrete time Markov chain model is used to build analytical model of multi-channel random access slotted Aloha. The number of WDM wavelength is corresponded to multi-channel slotted Aloha. We measure several performance characteristics, namely, steady-state throughput and average packet delay time. Additionally, the efficiencies of the system, which are based on both the processing gain and the number of WDM wavelengths, are considered. Additionally, exponential retransmission is used for solving packet collision problems. In our numerical results, system performance is given in terms of both average throughput and delay time.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131370056","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
Degree reduction and multiple degree reduction for the DP curves DP曲线的降阶和多次降阶
2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2008-05-14 DOI: 10.1109/ECTICON.2008.4600369
K. Itsariyawanich, N. Dejdumrong
{"title":"Degree reduction and multiple degree reduction for the DP curves","authors":"K. Itsariyawanich, N. Dejdumrong","doi":"10.1109/ECTICON.2008.4600369","DOIUrl":"https://doi.org/10.1109/ECTICON.2008.4600369","url":null,"abstract":"DP curve is a recent representation of the polynomial curves, proposed by Delgado and Pena in 2003. This curve has been claimed for its normalized totally positive (NTP) property and requires only the linear time computation. These properties indicate the shape preservation and the efficiency of evaluating the points on DP curves. Among several important properties of a non-rational curve, the degree reduction of a curve from n into n-1 degrees is very useful for many applications to decrease the complexity of the polynomials. The shape of the curve remains the same although the numbers of control points has been reduced. In this work, the degree reduction and the multiple degree reduction for DP curves has been proposed and well proven by the benefits of the Bezier degree reduction, multiple degree reduction and the relationships between Bezier and DP curves.","PeriodicalId":176588,"journal":{"name":"2008 5th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131982450","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
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