2008 IEEE International Conference on Electro/Information Technology最新文献

{"title":"GIS-based wind farm site selection in Lebanon","authors":"A. Bazzi, D. Fares","doi":"10.1109/EIT.2008.4554296","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554296","url":null,"abstract":"This paper includes an interactive wind farm design approach for Lebanon using geographic information systems (GIS). The procedure facilitates the process of locating a wind farm geographically, estimating its cost, and evaluating its generation capabilities. This paper uses Lebanon as a case study, and the procedure can be followed when similar necessary data are available for any other place. The procedure takes into consideration different design criteria such as wind data, urban areas, the type of turbines used, and the feasible distance between wind turbines. Moreover, GIS enhances wind data visualization and averaging. The procedure is implemented in ArcGISreg from ESRI and successfully locates the optimal site for wind farm based on the user preferences and the characteristics of the site under study. The results ensure noise pollution reduction, cost estimation, accurate farm area and location, and show the number of turbines that fit in this area. The paper also addresses privately owned wind farms ranging from household to commercial generation.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114290074","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}

{"title":"PEM fuel cell system identification and model order reduction for Hinfin; loop shaping controller design","authors":"Shady M. Elashhab, M. Zohdy","doi":"10.1109/EIT.2008.4554268","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554268","url":null,"abstract":"Low order linear models are normally preferred over more complex ones particularly in the Hinfin control system framework. Controllers designed based on Hinfin linear control theory tend to exhibit orders higher than or equal to the order of the original system. In this contribution, two methods were utilized in order to obtain a low order linear MIMO state space model equivalent to the nonlinear automotive Proton Exchange Membrane Fuel Cell (PEMFC) power system developed in [2]. The principles of input-output system identification (prediction-error minimization) and balanced model order reduction were utilized. In the first method, a linear 8th order state space model was estimated to best reproduce the outputs of the nonlinear system. Model order was lowered one order at a time and a state space model was identified. The one step ahead prediction outputs of the linear modes (8th order through 4th order) were compared to the nonlinear model outputs of several input-output data sets. Outputs of the aforementioned linear models and the outputs of the nonlinear model were very closely matched. The identified 4th order linear model was deemed very suitable to represent the PEMFC system. In the second method, a balanced model order reduction technique was utilized to obtain a truncated 4th order linear model directly from the identified 8th order model obtained by the first method. The outputs of the truncated model and the outputs of the nonlinear model matched very well. Each of the 4th order models was capable of capturing the dynamics of the PEMFC system and each of their performances was deemed highly satisfactory. A simple yet effective Hinfin loop shaping power tracking controller was designed in order to set the net output power of the stack to its desired levels following dynamic changes in load demand by means of manipulating the input voltage of the compressor motor. The Hinfin compensated system exhibited faster transient response, less overshoot, higher robustness and lower sensitivity margins when compared to the results of basic feed forward controllers presented in [2], [4], and [10].","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114456727","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}

{"title":"Multiwalled carbon nanotube-based hydrogen gas sensors","authors":"A. Jayatissa, K. Guo","doi":"10.1109/EIT.2008.4554331","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554331","url":null,"abstract":"Hydrogen sensitivity of as-deposited multiwalled carbon nanotubes (MWNTs) was investigated. The MWNTs were directly coated between microfabricated gold electrodes by a catalytic chemical vapor deposition at 600degC using methane as the monomer. The MWNTs exhibited a higher response > 50% and faster response than conventional metal oxides-based gas sensors in law temperature range of 150-300degC. Furthermore, the selectivity of MWNT-based sensors for hydrogen was investigated with respective to methane. It was found that the sensor signals were in opposite direction when methane was introduced. These phenomena clearly indicated that the MWNTs had a capability to determine hydrogen selectively from hydrogen and methane mixture. In a practical application, hydrogen always emits to the atmosphere with methane or other hydrocarbons. Therefore, the proposed sensor has a capability to determine hydrogen in a hydrogen and methane (or hydrocarbon) gas mixture. In this paper, experimental results are analyzed in scientific and technological view points.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130140790","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}

{"title":"Changes in dc current bias as a function of input drive for a depletion mode SiC MESFET","authors":"S. Sekar, H. Cao, R. Weber","doi":"10.1109/EIT.2008.4554330","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554330","url":null,"abstract":"Power generation is an important aspect of wireless communication. The relationship between the bias current and the output power is thus of great interest. This paper describes in detail the changes that occur in the bias conditions as a function of the input drive in a depletion mode SiC MESFET device that is used in transmitters. The change in bias conditions was first noticed when measuring the output power and efficiency of the device using the load pull technique. The theory, procedure and measured results obtained from utilizing the load pull technique along with the discovery of the change in bias and an investigation of why and how the bias changes as a function of input drive is also included in this paper.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130833885","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}

{"title":"An application of networked embedded computer systems to provide distributed decision making for intelligent logistics","authors":"R. Diaz","doi":"10.1109/EIT.2008.4554264","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554264","url":null,"abstract":"This paper presents the application of computer systems to provide distributed decision making for intelligent logistics using a communications system architecture enabled by a multi-band antenna system. This communication system architecture is described for a commercial vehicle application that is linked to off board databases for distributed decision making. The distributed decision making provides useful functions such as 1) need for servicing and location of the nearest service center with the necessary parts in stock, 2) routing and navigation and 3) load brokering and co-ordination. The paper references a U.S. patent that was granted prior to the introduction of the component sensor and communication technology which enable the overall system architecture to be practical. The paper also references a U. S patent for a multi-band antenna issued in 2006. These enabling technologies are described and referenced herein. Moreover recent progress in the development of distributed intelligent and multi-agent control systems is being published which will allow the realization of the communications system architecture.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134091648","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}

{"title":"Single-stage low-cost and energy-efficient isolated phase-shifted high-frequency inverter followed by a forced cycloconverter for universal residential fuel cell power system","authors":"S. Mazumder, R. Burra, Rongjun Huang, M. Tahir, K. Acharya, G. Garcia, S. Pro, O. Rodrigues, M. Stasinopoulos","doi":"10.1109/EIT.2008.4554337","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554337","url":null,"abstract":"We describe a single-stage low-cost and efficient fuel-cell (FC) power-electronics system (PES), which comprises a front end phase-shifted high-frequency (HF) full-bridge inverter followed by a step-up high-frequency transformer and a forced cycloconverter for universal residential FC power system (i.e., 110 V/240 V and 60/50 Hz). This single-stage dc/ac converter approach meets the higher energy efficiency requirement without exceeding the U.S. Department of Energy (DOE) cost constraint of $40/kW. The described topology achieves a direct power conversion and does not require any intermediate energy storage components. The FC PES increases the reliability by precluding the need for front-end dc/dc converter and also provides a low-cost viable alternative to high power density.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122377595","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}

{"title":"Mono-vision corner SLAM for indoor navigation","authors":"K. Çelik, Soon-Jo Chung, Arun Kumar Somani","doi":"10.1109/EIT.2008.4554326","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554326","url":null,"abstract":"We present a real-time monocular vision based range measurement method for Simultaneous Localization and Mapping (SLAM) for an Autonomous Micro Aerial Vehicle (MAV) with significantly constrained payload. Our navigation strategy assumes a GPS denied manmade environment, whose indoor architecture is represented via corner based feature points obtained through a monocular camera. We experiment on a case study mission of vision based path-finding through a conventional maze of corridors in a large building.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"269 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123027154","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}

{"title":"Lyapunov measure and control of periodic orbit","authors":"Amit Diwadkar, U. Vaidya, A. Raghunathan","doi":"10.1109/EIT.2008.4554266","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554266","url":null,"abstract":"The focus of this paper is on the computation of optimal stabilizing control for the control of complex dynamics in a lower dimensional discrete time dynamical system. Lyapunov measure is used for the purpose of the stabilization. Using the results from [17], optimal stabilization problem is posed as a infinite dimensional linear program. Finite dimensional approximation of the linear program is obtained using set oriented numerical methods. Simulation results are presented to demonstrate the use of Lyapunov measure for the optimal stabilization of periodic orbit in Henon map and Standard map.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122157989","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}

{"title":"A simple 4 quadrant NMOS analog multiplier with input range equal to ±VDD and very low THD","authors":"S. Purushothaman","doi":"10.1109/EIT.2008.4554281","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554281","url":null,"abstract":"A simple 4 quadrant analog multiplier using bulk NMOS transistors is presented in the paper. All the NMOS transistors in the circuit operate in saturation region. The complete circuit contains only 4 NMOS transistors as active devices. The proposed circuit has very good linearity, low THD, large input range and bandwidth. The input dynamic range of the circuit is plusmnVDD. The THD in the output waveform is smaller than 0.3% when the inputs are sine waves of peak-to-peak voltage 2.VDD. When input sine waves are of peak-to-peak voltage VDD, the THD is less than 0.14%. The 3dB bandwidth of the circuit is over 600 MHz. The circuit also has good noise performance compared to other similar works, due to less number of devices used. Quiescent power consumption of the overall circuit is only 214 muWatts.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131728332","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}

{"title":"EM-based distributed estimation in cluttered environment","authors":"Dianhui Xu, Yingwei Yao","doi":"10.1109/EIT.2008.4554295","DOIUrl":"https://doi.org/10.1109/EIT.2008.4554295","url":null,"abstract":"We consider a one-dimensional target estimation problem in a cluttered environment. A distributed estimator based on expectation-maximization (EM) algorithm and uncoded analog transmissions is developed. Through this experiment, one can gain some insights into methodology in the design of distributed estimator in sensor networks. As shown in our simulation, the proposed algorithm achieves significant estimation performance gain over existing distributed estimators under a communication constraint. Modified Cramer-Rao bound is also derived to provide a performance benchmark.","PeriodicalId":215400,"journal":{"name":"2008 IEEE International Conference on Electro/Information Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116960255","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}