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2009 IEEE Radio and Wireless Symposium, RWS 2009

作者： Schroeder, Ryan Magnussen, Chris McConnell, Jason Edward Dixon Ana Goulart Joseph Morgan Electronics and Telecommunications Engineering Technology Program Texas A and M College Station TX 77845 United States

ISBN: (纸本)9781424426997

This paper describes the design of a prototype system that uses HD RadioTM technology: Interactive FM Radio Messaging System (InFoRMS). The InFoRMS system can send real-time digital messages to remote and mobile LED marquees. In addition to its broadcasting capabilities, InFoRMS uses an addressing scheme that enables the display of messages in selected offices, floors, or rooms in a building. Thus, not only can the InFoRMS system be helpful in emergency situations, it can also be highly valuable as a method of informing people of everyday news. ©2009 IEEE.

关键词： Embedded systems

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Contamination-free cell lysis microfluidic device using cell cross over

Contamination-free cell lysis microfluidic device using cell...

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13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009

作者： Mun, Byung Phil Jung, Seung Mo Yoon, Sang Youl Lee, Jong Hyun Yang, Sung School of Information and Mechatronics Gwangju Institute of Science and Technology Korea Republic of Graduate Program of Medical System Engineering Gwangju Institute of Science and Technology Korea Republic of Department of Nanobio Materials and Electronics Gwangju Institute of Science and Technology Korea Republic of

ISBN: (纸本)9780979806421

Complicated and time-consuming cell purification processes prevent a micro cell lysis device from integrating with LOC (Lab-on-a-chip) or μ-TAS (μ-Total Analysis System) devices for cell analysis. In this paper, we present a microfluidic cell lysis device using a contamination-free cell cross over method in order to minimize the cell pretreatment procedure. © 2009 CBMS.

关键词： Microfluidics

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Impulsive synchronization of chaotic systems via linear matrix inequality approach

Impulsive synchronization of chaotic systems via linear matr...

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2009 IEEE International Conference on Networking, Sensing and Control, ICNSC 2009

作者： Chu, Cheng-Feng Lin, Jui-Sheng Hung, Meei-Ling Liao, Teh-Lu Hou, Yi-You Department of Engineering Science National Cheng Kung University Tainan 701 Taiwan Department of Electrical Engineering Far East University Tainan 744 Taiwan Medical Electronics and Device Technology Center Southern Program Office Industrial Technology Research Institute Tainan 73445 Taiwan

ISBN: (纸本)9781424434923

The aim of this paper is to propose an impulsive controller which is to guarantee the asymptotic synchronization of the master and slave chaotic systems. The impulsive controller is derived on the basis of the Lyapunov theory and the linear matrix inequlity (LMI) technique. A numerical example is given to demonstrate the effectiveness of the main results. © 2009 IEEE.

关键词： Chaotic systems

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InFoRMS - Interactive FM Radio Messaging System

InFoRMS - Interactive FM Radio Messaging System

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IEEE Radio and Wireless Symposium (RWS formerly RAWCON)

作者： Ryan Schroeder Chris Magnussen Jason McConnell Edward Dixon Ana Goulart Joseph Morgan Electronics and Telecommunications Engineering Technology Program Texas A and M University College Station TX USA

This paper describes the design of a prototype system that uses HD Radiotrade technology: Interactive FM radio messaging system (InFoRMS). The InFoRMS system can send real-time digital messages to remote and mobile LED marquees. In addition to its broadcasting capabilities, InFoRMS uses an addressing scheme that enables the display of messages in selected offices, floors, or rooms in a building. Thus, not only can the InFoRMS system be helpful in emergency situations, it can also be highly valuable as a method of informing people of everyday news.

关键词： High definition video Radio broadcasting Prototypes Light emitting diodes Displays Floors Buildings Software prototyping Tuners Design engineering

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High-quality factor, double notch, IIR digital filter design using optimal pole re-position technique with controllable passband gains

High-quality factor, double notch, IIR digital filter design...

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International Conference on Electrical engineering/electronics, Computer, Telecommunications and Information technology, ECTI-CON

作者： C. Charoenlarpnopparut P. Charoen A. Thamrongmas S. Samurpark P. Boonyanant Electronics and Communication Engineering Program School of Information Computer and Communication Technology Sirindhorn International Institute of Technology Thammasat University Thailand National Electronics and Computer Technology Center NSTDA Thailand

Digital IIR notch filter has been employed in various communication systems to eliminated unwanted narrowband interference with known frequency. In this paper, the optimal multiple notch filter design is proposed based on the pole re-position technique. The optimality considered is based on the minimization of resulting filter magnitude response from the ideal notch magnitude response, measured in term of numerical sum of error square. Furthermore, by using Grobner basis, the symbolic solution and design method can be generalized to the higher number of notch frequencies case. The design algorithm can be implemented directly on Matlab platform and optimal filter coefficients can be found via numerical optimization/search. The advantage of the proposed algorithm is that the designer can specify additional performance parameters such as stability margin (distant from largest pole to the nearest point on the unit circle), maximum passband gain and quality factor.

关键词： Digital filters Optimal control Passband IIR filters Frequency Algorithm design and analysis Communication system control Narrowband Interference elimination Design methodology

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Fabrication of QCM sensor array and PDMS micro chamber for biosensor applications

Fabrication of QCM sensor array and PDMS micro chamber for b...

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International Conference on Electrical engineering/electronics, Computer, Telecommunications and Information technology, ECTI-CON

作者： K. Jaruwongrungsee T. Maturos K. Wong-ek M. Sangworasil C. Pintavirooj A. Wisitsora-at A. Tuantranont Biomedical Signal and Image Processing Laboratory Department of Electronics Engineering Faculty of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand Nanoelectronics and MEMS Laboratory National Electronics and Computer Technology Center Pathum Thani Thailand Nanosceince and Technology Program Graduated College Chulalongkom University Bangkok Thailand

In this work, an array of quartz crystal microbalance (QCM) sensors is fabricated on a single quartz crystal substrate and attached with poly(dimethylsiloxane) (PDMS) micro chamber for using in flow-injection system. The Cr/Au electrode array is deposited on both side of quartz substrate by sputtering through electroplated microshadow mask. PDMS micro chamber was fabricated by mold casting technique with SU-8 mold. Fabricated PDMS micro chamber and QCM sensor array were attached together for using in flow-injection system. In our experiment, the QCM electrodes were coated with the carboxylic poly(vinyl chloride) (PVC-COOH) and then the carboxylic group was activated with carbodiimide hydrochloride (EDC) and N-hydroxylsuccinimide (NHS) for protein binding. The scanning electron micrograph shown the trapped protein on the modified sensing layer, it confirmed that our QCM sensor and PDMS micro chamber can be used as QCM biosensor array. This new QCM sensor array provide possibility of multiple detection in small amount of sample within a single quartz crystal substrate that avoid the error signal from the different properties of each sensor in an array.

关键词： Sensor arrays Biosensors Fabrication Sensor systems Electrodes Proteins Chromium Gold Sputtering Casting

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A novel anti-collision algorithm for high-density RFID tags

A novel anti-collision algorithm for high-density RFID tags

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International Conference on Electrical engineering/electronics, Computer, Telecommunications and Information technology, ECTI-CON

作者： Sarawut Makwimanloy Piya Kovintavewat Urachada Ketprom Charturong Tantibundhit Electrical and Computer Engineering Department Thammasat University Thailand RFID Technology and Applications Research Unit Nakhon Pathom Rajabhat University Nakhon Pathom Thailand RFID Program National Electronics and Computer Technology Center Thailand

In a radio frequency identification (RFID) system, when more than one tag communicates with a reader at the same time, a collision will occur resulting in the failure of that communication. Many anti-collision algorithms, such as binary tree (BT), FSA, and DFSA have been used in ISO and EPC standards to prevent such a collision. This paper develops a new anti-collision algorithm based on the BT and the DFSA algorithms. Specifically, all tags are divided into many groups using the DSFA algorithm. Then, the tags in each group are identified using the BT algorithm. Results indicate that the proposed algorithm performs better than the existing ones in terms of the number of used time slots (the less the used time slot, the faster the algorithm).

关键词： RFID tags Radiofrequency identification Partitioning algorithms Binary trees ISO standards Application software Radio frequency Access control Animals Logistics

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Virtual Door-Based Coverage Path Planning for Mobile Robot

Virtual Door-Based Coverage Path Planning for Mobile Robot

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12th International FIRA RoboWorld Congress

作者： Myung, Hyun Jeon, Hae-min Jeong, Woo-Yeon Bang, Seok-Won Department of Civil and Environmental and Engineering KAIST Daejeon 305-701 Yuseong-gu South Korea Samsung Advanced Institute of Technology Samsung Electronics Co. Ltd. Giheung Yongin 449-712 South Korea Robotics Institute Carnegie Mellon Univ. Pittsburgh PA 15213 5000 Forbes Avenue United States KIUSS(KAIST Institute for Urban Space and Systems) Robotics Program South Korea

ISBN: (纸本)9783642039829

This paper presents a novel coverage path planning method in indoor environment for a mobile robot such as cleaning robot. Overall region is divided into several sub-regions based on the virtually extracted doors. The algorithm is inspired from the usual way of dividing an indoor environment into sub-regions, i.e., rooms based on the identification of doors. The virtual door algorithm extracts the virtual doors by combining a Generalized Voronoi Diagram (GVD) and a configuration space eroded by the half of the door size. The region to region cleaning algorithm is also proposed based on the closing and opening operations of virtual doors. The performance of the proposed algorithm has been tested on various real indoor environments using a commercially available cleaning robot.

关键词： Virtual Door Coverage Path Planning Mobile Robot

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Impulsive synchronization of chaotic systems via linear matrix inequality approach

Impulsive synchronization of chaotic systems via linear matr...

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IEEE International Conference on Networking, Sensing and Control

作者： Cheng-Feng Chu Jui-Sheng Lin Meei-Ling Hung Teh-Lu Liao Yi-You Houc Department of Electrical Engineering National Cheng Kung University Tainan Taiwan R.O.C. Department of Engineering Science Far East University Tainan Taiwan R.O.C. Medical Electronics and Device Technology Center Southern Program Office Industrial Technology Research Institute Tainan Taiwan R.O.C.

The aim of this paper is to propose an impulsive controller which is to guarantee the asymptotic synchronization of the master and slave chaotic systems. The impulsive controller is derived on the basis of the Lyapunov theory and the linear matrix inequality (LMI) technique. A numerical example is given to demonstrate the effectiveness of the main results.

关键词： Chaos Linear matrix inequalities Chaotic communication Symmetric matrices Sliding mode control Control systems Biomedical engineering Master-slave Communication system control Industrial electronics

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Structural and optical properties of buried InAs/GaAs quantum dots on GaAsSb buffer layer

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Journal of Physics D: Applied Physics 2009年第18期42卷

作者： Wu, Y.H. Chang, Li Lin, P.Y. Chiang, C.H. Chen, J.F. Chi, T.W. Department of Materials Science and Engineering National Chiao-Tung University Hsinchu 30050 Taiwan Industrial Technology Research and Development Master Program on Semiconductor Materials and Processing National Chiao-Tung University Hsinchu 30050 Taiwan Department of Eletrophysics National Chiao-Tung University Hsinchu 30050 Taiwan Electronics and Optoelectronics Research Laboratories Industrial Technology Research Institute Hsinchu 30050 Taiwan

In this work, we investigated the effect of a 1 nm thick GaAs 94.3Sb0.57 buffer layer on structural and optical properties of buried InAs quantum dots (QDs) and wetting layers (WLs) in GaAs using photoluminescence (PL) and transmission electron microscopy (TEM). The density and emission wavelength of the QDs on the buffer were increased due to the size and the shape modification in comparison with those without a buffer. PL analysis of the ground-state (GS) peak of the QDs on the buffer showed a red-shift of 18 meV with an enhanced intensity. In addition, PL and TEM show that the buffer has a weak effect on the WLs and no apparent changes occur for the buffer during QD deposition and the capping process. © 2009 IOP Publishing Ltd.

关键词： Buffer layers

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