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Frontiers in Education - 35th Annual Conference 2005, FIE' 05

作者： Sturm, Bob L. Gibson, Jerry D. Graduate Program 3431 South Hall University of California Santa Barbara Santa Barbara CA 93106 Department of Media Arts and Technology and Electrical and Computer Engineering

ISBN: (纸本)0780390776

Effectively teaching introductory media signal processing (MSP) to students requires a means of communicating complex concepts without advanced mathematics. At the Media Arts and Technology program at UCSB we are teaching graduate media arts students concepts of MSP. These students, while interested in learning how their digital tools work, have an incredibly tough time working through the material the way traditional engineering students do. To address this we have used MATLAB to build a comprehensive suite of exploratory demonstrations and applications tailored to illustrate sophisticated concepts, and to inspire students that may not possess a strong background in mathematics. Our application, "Signals and Systems Using MATLAB" (SSUM), is presented here, and its use in a course designed to teach MSP to media arts students is discussed. Its usefulness extends beyond media arts to engineering and computer science curriculum. SSUM can be obtained for free from http://***/***. © 2005 IEEE.

关键词： Teaching

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Self-forming lateral apertures in silicon microchannels for patch clamping

Self-forming lateral apertures in silicon microchannels for ...

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9th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2005

作者： Yobas, Levent Zhao, Liping Zhu, Jia Kumar, Rajnish Sharma Nagarajan, Ranganathan Liw, Saxon Hui, Wing Cheong Lim, Tit-Meng Sheu, Fwu-Shan Singapore Singapore Graduate Program in Biomedical Engineering National University of Singapore Singapore Singapore School of Electrical and Electronic Engineering Nanyang Technological University Singapore Singapore Department of Biological Sciences National University of Singapore Singapore Singapore

ISBN: (纸本)0974361119

A lateral aperture with a round profile ideal for patch clamping is created by isotropic dry etching through a silicon micropartition between two microchannels. A special package design is introduced to establish an air-tight fluidic and electrical interface between the chip and the pipette holder of a commercial patch clamp amplifier. The electrical resistance across the lateral aperture with a diameter of 7.5μm ranges from 0.5MΩ to 0.7MΩ. Cells in suspension injected into the microchannel can be actively manipulated towards the lateral patch aperture by microfluidic flow control. Nearby cells can be successfully trapped via suction applied through the aperture. Copyright © 2005 by the Transducer Research Foundation, Inc.

关键词： Microfluidics

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Adaptation of a piano tuning device for the visually impaired

Adaptation of a piano tuning device for the visually impaire...

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Proceedings of the 2005 IEEE 31st Annual Northeast Bioengineering Conference

作者： Davis, Ronald L. Sun, Ying Sanderson, Paul L. Department of Electrical and Computer Engineering Biomedical Engineering Program University of Rhode Island Kingston RI 02881-0805 United States Inventronics Incorporated 9 Acton Road Chelmsford MA 01824-3411 United States

Piano tuners of all skill levels use electronic tuning devices to assist them in their tuning. These devices provide visual feedback to the user about the state of the note being tuned. A tactile output system was created, enabling the visually impaired piano tuner to be able to use an electronic tuning device. Signals from the tuning device are used to drive vibrating motors in an armband worn by the user. ©2005 IEEE.

关键词： Tuning

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A formal approach for component based embedded software modelling and analysis

A formal approach for component based embedded software mode...

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IEEE International Symposium on Industrial Electronics 2005, ISIE 2005

作者： Almeida, Hyggo Oliveira Dias Da Silva, Leandro Oliveira, Elthon Perkusich, Angelo Federal University of Campina Grande Department of Electrical Engineering Campina Grande Paraiba Brazil Federal University of Campina Grande Graduate Program in Computer Science Campina Grande Paraiba Brazil

ISBN: (纸本)0780387384

To develop software for embedded systems the designer must take into account different kinds of problems and complexities. The main issues are related to late integration with the target hardware and the separation of the development environments from target execution platforms. Due to the fact that in most situations they are developed using low-level programming languages, approaches to develop complex software systems, such as component based software development, cannot be used at all. In this work we introduce a component based development process that integrates colored Petri nets and a component model in order to introduce better abstraction mechanisms in the modelling, analysis and verification processes for embedded software systems. ©2005 IEEE.

关键词： Embedded systems

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Transistor characteristics of thermal chemical vapor deposition carbon nanotubes field emission triode

Journal of Vacuum Science & Technology B: Microelectronics a...

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Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena 2005年第2期23卷 868-873页

作者： Y. M. Wong W. P. Kang J. L. Davidson W. Hofmeister S. Wei J. H. Huang Department of Electrical Engineering and Computer Science Vanderbilt University Nashville Tennessee 37235 Interdisciplinary Graduate Program in Material Science Vanderbilt University Nashville Tennessee 37235 Department of Materials Science and Engineering National Tsing Hua University Hsinchu 300 Taiwan Republic of China

A study of thermal chemical vapor deposition (CVD) grown carbon nanotubes (CNTs) field emitters in a triode amplifier configuration is reported. The CNT transistor characteristics were examined by integrating gate and anode with CNT cathode in two structural forms, utilizing a TEM grid (transmission electron microscope specimen holder) as the gate electrode and a micropatterned CNT with self-aligned gate. The TEM-grid CNT triode displayed clearly gate-controlled current modulation behavior with distinct cutoff, linear, and saturation regions, and a reasonable gate turn-on field of ∼5.4V∕μm despite a large cathode-gate spacing of ∼120μm . The field emission result established the basic transistor characteristics of CNTs in a triode configuration. A CNT triode construct with a self-aligned gated fabrication technique was also developed to realize a monolithic triode structure with shorter gate-cathode spacing, lowering gate voltage, and enhancing emission current. The triode exhibited a significantly lower gate turn-on voltage of ∼40V , and gate-controlled modulation of the emission current. An anode current density of ∼30mA∕cm2 was achieved at a gate voltage of ∼80V and an anode voltage of ∼200V . The dc characteristics for both of the CNT triodes were investigated, including Ia versus Va for different Vg . Moreover, dc parameters such as transconductance, amplification factors, and anode resistance of the triode amplifier were determined. The CNT triodes exhibited useful amplification factor and high output impedance.

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Wireless hearing aid system simulations using advanced design system™: A behavioral modeling approach

Wireless hearing aid system simulations using advanced desig...

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2005 27th Annual International Conference of the engineering in Medicine and Biology Society, IEEE-EMBS 2005

作者： Rana, Ram Singh Tang, Bin Zhang, Liang Krishna, Garg Hari Wang, Yun Institute of Microelectronics Singapore Science Park II 11 Science Park Road Singapore 117685 Singapore Graduate Program in Bioengineering National University of Singapore Singapore 117597 Singapore Department of Electrical and Computer Engineering National University of Singapore Singapore 119260 Singapore Department of Otolaryngology Faculty of Medicine National University of Singapore Singapore 119074 Singapore

ISBN: (纸本)0780387406

The stringent requirements on size and power consumption constrain the conventional hearing aid devices from providing the patients an economic and user friendly solution, specifically for better noise cancellation. With the advancements in technologies such as integrated circuits design, wireless communications and digital signal processing techniques, the wireless hearing aids having multi-microphones, analog, digital and mixed signals and radio frequency signals processing circuits, DSP and programmable units seem to be promising to provide enhanced performance. The focus of this paper is about the system simulation of a typical wireless hearing aid using Agilent Advanced Design System™. The behavioral modeling features are exploited to enable the whole system simulations including electro-acoustic transducers. A few system level simulation results are included. © 2005 IEEE.

关键词： Hearing aids

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Wireless Hearing Aids System Simulation

Wireless Hearing Aids System Simulation

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Asilomar Conference on Signals, Systems & computers

作者： H.K. Garg Tang Bin Zhang Liang R.S. Rana Department of Electrical & Computer Engineering National University of Singapore Singapore 11 Science Park Road Institute of Microelectronics Singapore Graduate Program in Bioengineering National University of Singapore Singapore

Although wireless hearing aid systems have been proposed by several research groups, no viable whole-system simulation results have been reported so far for better evaluation of this advanced hearing device. In this paper, a system-level simulation using ADStrade is presented based on one of the typical wireless hearing aid architecture. The results show that the wireless hearing aid system function can be simulated and verified. And from these results, we can get a very promising performance which can be used for further design

关键词： Hearing aids Auditory system Circuit simulation Radio frequency Noise cancellation Mathematical model Costs RF signals Signal processing Computational modeling

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A Formal Approach for Component Based Embedded Software Modelling and Analysis

A Formal Approach for Component Based Embedded Software Mode...

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： H.O. Almeida L. Dias da Silva E. Oliveira A. Perkusich Department of Electrical Engineering Federal University of Campina Grande Campina Grande Paraiba Brazil Graduate Program in Computer Science Federal University of Campina Grande Campina Grande Paraiba Brazil

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Comparing adaptation of constrained and unconstrained movements in three dimensions

Comparing adaptation of constrained and unconstrained moveme...

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IEEE International Conference on Rehabilitation Robotics (ICORR)

作者： C. Scharver J. Patton R. Kenyon E. Kersten Sensory Motor Performance Program Rehabilitation Institute of Chicago Chicago IL USA Robotics Laboratory Rehabilitation Institute of Chicago Chicago IL USA Department of Computer Science University of Illinois Chicago IL USA Biomedical Engineering Graduate Program University of Wisconsin Madison WI USA

This paper describes targeted reaching experiments conducted using a new augmented reality system. Combining a large-workspace immersive virtual environment with physical force feedback, the system distorted subjects' movements using a viscous curl force field. Following previous experiments using a different robot, half the subjects were constrained to horizontal, planar movements. The remaining subjects performed unconstrained movements throughout the 3D workspace. Examining after-effects as an indication of learning, we found that constrained subjects learned the force field. However, it was difficult to detect whether the unconstrained subjects learned forces of identical magnitude. Our results found that force fields strengths eliciting constrained 2D adaptation have difficulty exhibiting after-effects for unconstrained 3D movements. The increased motor variability for 3D reaching movements requires consideration for future experimental design.

关键词： Rehabilitation robotics Robot sensing systems Nonlinear distortion Force feedback Displays Laboratories Augmented reality Virtual environment Design for experiments Haptic interfaces

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Journal of Information Science and engineering: Editorial notice

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Journal of Information Science and engineering 2005年第5期21卷 i-ii页

作者： Lee, Der-Tsai Amato, Nancy M. Chang, Shih-Fu Chen, Homer H. Chen, Tsuhan Hsu, Tsan-Sheng Hwang, Jenq-Neng Kuo, Sy-Yen Kuo, Tei-Wei Li, Chung-Sheng Tokuyama, Takeshi Wing, Jeannette Wu, Tzong-Chen Yen, John Computer Science at Texas A and M University United States Parasol Laboratory United States IEEE Transactions on Parallel and Distributed Systems Computing Research Association's Committee on the Status of Women in Computing Research CRA-W's Distributed Mentor Program United States Department of Electrical Engineering Columbia University United States Lab. United States College of Electrical Engineering and Computer Science National Taiwan University Taiwan IEEE Transactions on Circuits and Systems for Video Technology IEEE Department of Electrical and Computer Engineering Carnegie Mellon University Pittsburgh PA United States ACM ACM SIGACT IEEE Computer Society IICM Austria Research and Development of the Department Multimedia Signal Processing Technical Committee IEEE Signal Processing Society United States IEEE Transactions on Circuits and systems for Video Technology College of Electrical Engineering and Computer Science National Taiwan Ocean University Keelung Taiwan Department of Electrical Engineering National Taiwan University Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan IEEE Technical Committee on Real-Time Systems Computer Science Division IBM T.J. Watson Research Center United States IBM Research Division Graduate School of Information Sciences Tohoku University Japan ACM IPSJ Mathematical Society of Japan Japan Department of Computer Science Computer Science Department Carnegie Mellon University United States National Academies of Science's Computer Science and Telecommunications Board United States Microsoft's Trustworthy Academic Advisory Board Intel Research Pittsburgh's Advisory Board United States Dartmouth's Institute for Security Technology Studies Advisory Committee Canada Sloan Research Fellowships Program Committee United States ACM Taiwan China Information Sciences and Technology Pennsylvania State University United States Laboratory for Intelligent Agents Penn State's School of Info

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