检索结果-内蒙古大学图书馆

51st Midwest Symposium on Circuits and systems (MWSCAS 2008), vol.2

作者： Robert L. Ewing Hoda S. Abdel-Aty-Zohdy Michael C. Hollenbeck Kenneth S. Stevens Information Directorate US Air Force Research Laboratory OH USA Microelectronics System Design Laboratory Department of Electrical and Systems Engineering Oakland University Rochester MI USA Department of Electrical and Computer Engineering University of Utah Salt Lake UT USA

Fractional-order systems have applications in the areas of Flight Control, Robotics, Missile Guidance, Control of Structural Vibrations of Space Platforms and Sensor Technology. Fractional-order transfer functions can characterize complex nonlinear dynamics with many fewer parameters than integer-order functions. This paper addresses the use of a polymer-electrolyte transistor (PET) for use in implementating fractional-order algorithms for signal processing. The PET's advantage over the conventional RC and RL circuits is that it can be both functionally scaled and varied for dynamic fractional-order parameter controllability.

关键词： Fractional-Order Signal Processing Polymer-electrolyte transistor Acid/base chemistry Diffusion Electrokinetic flow

来源：评论

学校读者我要写书评

暂无评论

Control design for efficient and cost-effective distributed fuel cell power electronics system

Control design for efficient and cost-effective distributed ...

引用

Annual Conference of Industrial Electronics Society

作者： Sudip K. Mazumder Sanjaya K. Pradhan Laboratory for Energy and Switching-Electronics Systems Department of Electrical and Computer Engineering University of Illinois Chicago USA Product Design Engineer Philips

Batteries in a fuel cell power system are essential to provide the additional load demands during the sharp load transients. This necessitates a power electronics system, which would control the energy flow between the fuel cell stack, the battery and the load during the transient and in the steady-state. In this paper, a cost-effective and efficient power electronic system is proposed for a fuel cell based hybrid power system based on a distributed power electronics topology. The system includes a hierarchical controlling architecture, in which the master control optimizes the control parameters of the individual subsystem controls, which in turn optimizes the performance and efficiency of the overall system while nullifying the effects of load transients on the fuel cell stack subsystem. The power electronics system concept is further experimentally validated using a four module bidirectional DC-DC converter with Nexa PEM stack.

关键词： Control design Fuel cells Power electronics Control systems Power system transients Batteries Steady-state Hybrid power systems Circuit topology DC-DC power converters

来源：评论

学校读者我要写书评

暂无评论

A combined top-down and bottom-up approach for precise placement of metal nanoparticles on silicon (vol 4, pg 330, 2008)

引用

SMALL 2008年第4期4卷 393-393页

作者： Choi, W. K. Liew, T. H. Chew, H. G. Zheng, F. Thompson, C. V. Wang, Y. Hong, M. H. Wang, X. D. Li, L. Yun, J. Microelectronics Laboratory Department of Electrical and Computer Engineering National University of Singapore 117576 Singapore Singapore Fax: (+65) 677-911-03 Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA ECE-DSI Laser Microprocessing Laboratory Department of Electrical and Computer Engineering National University of Singapore 117576 Singapore Singapore Advanced Materials for Micro- and Nano-Systems Singapore-MIT Alliance 117576 Singapore Singapore

A combined top-down and bottom-up approach was used for precise placement of metal nanoparticles on silicon substrates. The study used laser interference lithography (LIL) technique, to open windows on a silicon wafer with a silicon oxide mask. Inverted pyramids were obtained at the window region, by etching the silicon wafer in KOH under the top-down approach. The bottom-up approach involved the evaporation of a gold (Au) layer on the whole silicon wafer and annealing at elevated temperature. The Au inside the inverted pyramids was coarsened and formed Au dots inside them. The results show that the diameter of the metal nanoparticles can be tuned more effectively, by changing the Au layer thickness, along with the annealing temperature.

关键词： gold nanolithography nanomanipulation nanoparticles silicon surfaces

来源：评论

学校读者我要写书评

暂无评论

Electrocardiographic pill for cattle heart rate determination

Electrocardiographic pill for cattle heart rate determinatio...

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Steve Warren Angel Martinez Timothy Sobering Daniel Andresen Department of Electrical & Computer Engineering Kansas State University Manhattan KS USA Integrated Defense Systems Raytheon Corporation Andover MA USA Electronics Design Laboratory Kansas State University Manhattan KS USA Department of Computing & Information Sciences Kansas State University Manhattan KS USA

Decreased agricultural profit margins and recent bioterrorism concerns have led to an increased interest in monitoring livestock health. Heart rate and core body temperature are traditional vital parameters for cattle health assessment, as they provide warnings for illness and disease. However, obtaining these data in the field is time and labor intensive, which speaks to the need for solutions that provide continuous and automatic acquisition of these parameters. This paper presents the design of a pill that can remain in an animal's reticulum and use electrocardiographic techniques to ascertain heart rate. The wired prototype has been tested with a fistulated steer. These tests demonstrate that consistent heart vector data can be acquired even in the presence of animal movement and rumination. After minor processing, these signals are suitable for use with peak detection circuitry that can automate heart rate determination.

关键词： Cows Heart rate Biomedical monitoring Electrocardiography Band-pass filters Monitoring

来源：评论

学校读者我要写书评

暂无评论

Editorial: Dependability and security

引用

IEEE Transactions on Dependable and Secure Computing 2008年第1期5卷 1-3页

作者： Iyer, Ravishankar K. Gligor, Virgil D. Kalbarczyk, Zbigniew T. Kanoun, Karama Katzenbeisser, Stefan Mukherjee, Shubu Shieh, Shiuhpyng Zorian, Yervant Department of Electrical and Computer Engineering Carnegie Mellon University Microsoft's Trusted Computing Academic Advisory Board Center for Reliable and High-Performance Computing Coordinated Science Laboratory University of Illinois Urbana-Champaign United States IEEE IEEE Computer Society LAAS CNRS IFIP Working Group 10.4 on Dependable Computing and Fault Tolerance Special Interest Group on Dependability Benchmarking IFIP Working Group 10.4 French SEE Technical Committee on Trustworthy Computer Systems SEE Working Group Design and Validation for Dependability Technical University Munich Germany Darmstadt University of Technology ACM IACR Intel's SER Tech Council Intel's Architecture Patent Committee Taiwan Information Security Center NCTU IEEE Reliability Society Taipei and Tainan IACR United States Virage Logic Corp. AT and T Bell Laboratories Logic Vision Inc. University of British Columbia IEEE Test Technology Technical Council

来源：评论

学校读者我要写书评

暂无评论

Flexible controller design and its application for concurrent execution of buffer centric dataflows

引用

Journal of VLSI Signal Processing systems for Signal, Image, and Video Technology 2007年第3期47卷 233-257页

作者： Mun, Junhee Cho, Shung Han Hong, Sangjin Mobile Systems Design Laboratory Department of Electrical and Computer Engineering Stony Brook University-SUNY Stony Brook NY 11794-2350 United States

This paper presents a flexible controller structure for concurrent processing of memory centric coarse grain data flows. We propose a design flow based on block level pipelining where concurrency among processing blocks is fully maintained. The controller is dynamically reconfigurable to support dynamic data-flow structure changes by localizing control signals. The proposed control design method isolates controllers and processing logics such that system integration is simplified while controllers are locally configured from orthogonal global information. The controller also supports interfacing with external processors for asynchronous processing. The controller for heterogeneous processing blocks is synthesized and verified using Verilog and SystemC on FPGA. We present an example demonstrating the effectiveness of the controllers where dynamic reconfiguration of the execution is feasible. © Springer Science+Business Media, LLC 2007.

关键词： Concurrent engineering

来源：评论

学校读者我要写书评

暂无评论

Biologically-Based Signal Processing Chips with Emphasis on Telecommunication Defect Tracking and Reliability Estimation

Biologically-Based Signal Processing Chips with Emphasis on ...

引用

IEEE Pacific Rim Conference on Communications, computers and Signal Processing

作者： Hoda S Abdel-Aty-Zohdy Microelectronics System Design Laboratory Department of Electrical and Computer Engineering Oakland University Rochester MI USA

This paper provides observations and motivations to mimic biological information processing. Alternative bio-inspired systems definitions, basics, approaches, algorithms, and chip implementations will be illustrated to offer a base of choice for bio-based Intelligent Information Processing (IIP) systems. Hybrid biological and bio-based IIP are briefly presented. Two specific applications follow with embedded bio-based systems: Bio-chemical sensing and detection E-nose; and Track improvements In the reliability of the software used in telecommunication network deployments. The biologically-based processing discoveries gleaned from observing the spikes in the brain activity of monkeys, introduced the concept of plasticity in synapses used in our embedded Spiking Neural Network (SNN) system for the E-Nose The mathematical construct of a defect tracking classifier is nonlinear, and the event to be recognized involves a sequentially varying or non-stationary phenomenon for telecommunication defect tracking and reliability estimation. Thus, Adaptive Recurrent Dynamic Neural Network (ARDNN) system using wavelet function as the basis improved the failure event estimation of software defect tracking in telecommunications and reduced the error from 88% to L25-8%.

关键词： Biomedical signal processing Signal processing algorithms Information processing Telecommunication network reliability Biological neural networks Application software Embedded software Brain Nonlinear dynamical systems Neural networks

来源：评论

学校读者我要写书评

暂无评论

Multitarget association and tracking in 3-D space based on particle filter with joint multitarget probability density

Multitarget association and tracking in 3-D space based on p...

引用

IEEE Conference on Advanced Video and Signal Based Surveillance (AVSS)

作者： Jinseok Lee Byung Guk Kim Shung Han Cho Sangjin Hong We-Duke Cho Mobile Systems Design Laboratory Department of Electrical and Computer Engineering Stony Brook University-SUNY Stony Brook NY USA

This paper addresses the problem of 3-dimensional (3D) multitarget tracking using particle filter with the joint multitarget probability density (JMPD) technique. The estimation allows the nonlinear target motion with unlabeled measurement association as well as non-Gaussian target state densities. In addition, we decompose the 3D formulation into multiple 2D particle filters that operate on the 2D planes. Both selection and combining of the 2D particle filters for 3D tracking are presented and discussed. Finally, we analyze the tracking and association performance of the proposed approach especially in the cases of multitarget crossing and overlapping.

关键词： Particle tracking Particle filters Target tracking Radar tracking Filtering State estimation Diversity reception Performance analysis Space technology Two dimensional displays

来源：评论

学校读者我要写书评

暂无评论

Object Tracking Based on RFID Coverage Visual Compensation in Wireless Sensor Network

Object Tracking Based on RFID Coverage Visual Compensation i...

引用

IEEE International Symposium on Circuits and systems (ISCAS)

作者： Jinseok Lee Kyoung-Su Park Sangjin Hong We-Duke Cho Mobile Systems Design Laboratory Department of Electrical and Computer Engineering Stony Brook University-SUNY Stony Brook NY USA

This paper proposes objects tracking method by association with RFID and visual sensors. The detection from RFID readers with proximity to each object results in coarse localization. The estimation is determined by a virtual sensor which is comprised of RFID readers detection combination. Each virtual sensor has a reference point which represents the center of possible positions. After the coarse estimation, image frames from two cameras improve the estimation close to a real position based on parallel projection model. The visual compensation sufficiently accomplishes the refined tracking. The experimental results show our proposed algorithm remarkably accomplishes the localization performance.

关键词： Radiofrequency identification Wireless sensor networks Acoustic sensors Object detection Sensor systems Global Positioning System Cameras Satellite broadcasting Intelligent networks Mobile computing

来源：评论

学校读者我要写书评

暂无评论

Opposition-Based Q(λ) with Non-Markovian Update

Opposition-Based Q(λ) with Non-Markovian Update

引用

IEEE Symposium on Adaptive Dynamic Programming and Reinforcement Learning, (ADPRL)

作者： Maryam Shokri Hamid R. Tizhoosh Mohamed S. Kamel Pattern Analysis and Machine Intelligence Laboratory Department of Systems Design Engineering University of Waterloo ONT Canada Department of Electrical and Computer Engineering University of Waterloo ONT Canada

The OQ(λ) algorithm benefits from an extension of eligibility traces introduced as opposition trace. This new technique is a combination of the idea of opposition and eligibility traces to deal with large state space problems in reinforcement learning applications. In our previous works the comparison of the results of OQ(λ) and conventional Watkins' Q(λ) reflected a remarkable increase in performance for the OQ(λ) algorithm. However the Markovian update of opposition traces is an issue which is investigated in this paper. It has been assumed that the opposite state can be presented to the agent. This may limit the usability of the technique to deterministic environments. In order to relax this assumption the non-Markovian opposition-based Q(λ) (NOQ(λ)) is introduced in this work. The new method is a hybrid of Markovian update for eligibility traces and non-Markovian-based update for opposition traces. The experimental results show improvements of learning speed for the proposed technique compared to Q(λ) and OQ(λ). The new technique performs faster than OQ(λ) algorithm with the same success rate and can be employed for broader range of applications since it does not require determining state transition

关键词： Learning Usability Dynamic programming Pattern analysis Machine intelligence Laboratories System analysis and design design engineering systems engineering and theory State-space methods

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：