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9th European Signal Processing Conference, EUSIPCO 1998

作者： Koulouris, A. Koziris, N. Andronikos, T. Papakonstantinou, G. Tsanakas, P. Digital Systems and Computer Laboratory Computer Science Division Department of Electrical and Computer Engineering National Technical University of Athens Zographou Campus Athens15773 Greece

QRS is the dominant complex in the Electrocardiogram (ECG). Its accurate detection is of fundamental importance to reliable ECG interpretation and hence, to all systems analyzing the ECG signal (e.g. Heart-monitoring). Syntactic methods are a very powerful tool for QRS detection, since they can easily describe complex patterns, but their high computational cost prevents their implementation for real time applications. In this paper, we present a VLSI architecture for ECG signal processing, automatically derived using a nested loop parallelization method. This architecture detects the QRS complex by parsing the corresponding to the ECG signal input string, based on an attribute grammar describing it.

关键词： parallel architectures

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A Physical-Based Artificial Neural Networks Compact Modeling Framework for Emerging FETs

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IEEE Transactions on Electron Devices 2024年第1期71卷 223-230页

作者： Yang, Ya-Shu Li, Yiming Kola, Sekhar Reddy Reddy National Yang Ming Chiao Tung University Parallel and Scientific Computing Laboratory The Institute of Communications Engineering Hsinchu300093 Taiwan National Yang Ming Chiao Tung University Parallel and Scientific Computing Laboratory Institute of Communications Engineering Institute of Biomedical Engineering Department of Electronics and Electrical Engineering Hsinchu300093 Taiwan National Yang Ming Chiao Tung University Parallel and Scientific Computing Laboratory Electrical Engineering and Computer Science International Graduate Program Hsinchu300093 Taiwan

We report a compact modeling framework based on the Grove-Frohman (GF) model and artificial neural networks (ANNs) for emerging gate-all-around (GAA) MOSFETs. The framework consists of two ANNs;the first ANN constructed with the drain current model not only can capture the main trend of device I - V characteristics but also can predict its variation even when the amount of training data for the ANN is insufficient or outside the range of applied biases. The second one is then designed to improve the model accuracy by further minimizing the errors between the target and the model outputs. We implement the proposed framework to accurately model emerging GAA nanosheet (NS) MOSFETs and complementary FETs (CFETs) without suffering from divergent issues in circuit simulation. In addition, nonphysical behaviors, such as nonzero current at zero bias, do not occur in the modeling framework. Compared to recently reported machine-learning (ML) models, our approach can achieve a similar level of model accuracy with merely 20% amount of the training data. © 1963-2012 IEEE.

关键词： Neural networks

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Optimal Integrated Schedule of Entire Process of Dual-blade Multi-cluster Tools From Start-up to Close-down

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IEEE/CAA Journal of Automatica Sinica 2019年第2期6卷 553-565页

作者： Qinghua Zhu Yan Qiao Naiqi Wu IEEE the School of Computer Science and Technology Guangdong University of Technology the Helen and John C. Hartmann Department of Electrical and Computer Engineering New Jersey Institute of Technology the Institute of Systems Engineering Macao University of Science and Technology the National Key Laboratory of Precise Electronic Manufacturing Technology and Equipment Guangdong University of Technology

Multi-cluster tools are widely used in majority of wafer fabrication processes in semiconductor industry. Smaller lot production, thinner circuit width in wafers, larger wafer size, and maintenance have resulted in a large quantity of their start-up and close-down transient periods. Yet, most of existing efforts have been concentrated on scheduling their steady *** from such efforts, this work schedules their transient and steady-state periods subject to wafer residency constraints. It gives the schedulability conditions for the steady-state scheduling of dual-blade robotic multi-cluster tools and a corresponding algorithm for finding an optimal schedule. Based on the robot synchronization conditions, a linear program is proposed to figure out an optimal schedule for a start-up period, which ensures a tool to enter the desired optimal steady state. Another linear program is proposed to find an optimal schedule for a closedown period that evolves from the steady state period. Finally,industrial cases are presented to illustrate how the provided method outperforms the existing approach in terms of system throughput improvement.

关键词： Multi-cluster tools robots scheduling transient periods semiconductor manufacturing systems

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Analysis of the large-signal characteristics of power heterojunction bipolar transistors exhibiting self-heating effects

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IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 1997年第4期45卷 534-542页

作者： Samelis, A Pavlidis, D Department of Electrical Engineering and Computer Science Solid State Electronics Laboratory University of Michigan Ann Arbor MI USA Rockwell Semiconductor Systems Inc. Newbury Park CA USA

The large-signal microwave characteristics of AlGaAs/GaAs heterojunction bipolar transistors (HBT's) are modeled using the conventional Gummel-Poon-based bipolar junction transistor (BJT) model and extending it to include self-heating effects, The model is incorporated as a user-defined model in a commercial circuit simulator, The experimental microwave characteristics of HBT's are analyzed using the new model and harmonic balance techniques and the impact of self-heating effects on the device large-signal characteristics is investigated, Use of constant base voltage rather than constant current is more suitable for achieving maximum output power. Self-heating induced by RF drive is reduced under constant base current conditions. Increased thermal capacitance values result in gain enhancement at high power levels.

关键词： heterojunction bipolar transistors large-signal modeling thermal effects

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Overview of an arithmetic design system

Overview of an arithmetic design system

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DAC 1981 - the 18th Design Automation Conference

作者： Atkins, D.E. Liu, W. Ong, S. Systems Engineering Laboratory Department of Electrical and Computer Engineering Program in Computer Information and Control Engineering University of Michigan Ann ArborMI48109 United States

This paper describes an evolving Arithmetic Design System (ADS) to support the quantitative evaluation of alternate number systems with respect to a given application and realization technology. A finite number system is a tuple consisting of a symbol set (elements are called "digit-vectors"), an interpretation set, a mapping between these two sets, and a set of operators ("digit-vector algorithms") defined on the symbol set. A set of these digit vector algorithms are proposed for conducting arithmetic design and for computing time and space complexity of compositions of these algorithms. Once a transition has been made from arithmetic design to logic design, a sub-system of the ADS provides a estimate of time and space complexity with respect to a PLA-base of implementation. © Institute of electrical and Electronics Engineers Inc. All rights reserved.

关键词： Numbering systems

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Optimal Price-maker Trading Strategy of Wind Power Producer Using Virtual Bidding

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Journal of Modern Power systems and Clean Energy 2022年第3期10卷 766-778页

作者： Dongliang Xiao Mohamed Kareem AlAshery Wei Qiao IEEE Power and Energy Systems Laboratory Department of Electrical and Computer EngineeringUniversity of Nebraska-LincolnLincolnNE 68588-0511USA School of Electric Power South China University of TechnologyGuangzhou 510641China

This paper proposes a stochastic optimization model for generating the optimal price-maker trading strategy for a wind power producer using virtual bidding,which is a kind of financial tool available in most electricity markets of the United *** the proposed model,virtual bidding is used to improve the wind power producer’s market power in the dayahead(DA)market by trading at multiple buses,which are not limited to the locations of the wind *** optimal joint wind power and virtual trading strategy is generated by solving a bi-level nonlinear stochastic optimization *** upperlevel problem maximizes the total expected profit of the wind power and virtual bidding while using the conditional value at risk(CVa R)for risk *** lower-level problem represents the clearing process of the DA *** using the Karush-Kuhn-Tucker(KKT)conditions,duality theory,and big-M method,the bi-level nonlinear stochastic model is firstly transferred into an equivalent single-level stochastic mathematical program with the equilibrium constraints(MPEC)model and then a mixed-integer linear programming(MILP)model,which can be solved by existing commercial *** reduce the computational cost of solving the proposed stochastic optimization model for large systems,a method of reducing the number of buses considered for virtual bidding is proposed to simplify the stochastic MPEC model by reducing its decision variables and constraints related to virtual *** studies are performed to show the effectiveness of the proposed model and the method of reducing the number of buses considered for virtual *** impacts of the transmission limits,wind unit location,risk aversion parameters,wind power volatility,and wind and virtual capacities on the price-maker trading strategy are also studied through case studies.

关键词： Bi-level optimization electricity market risk management stochastic optimization virtual bidding wind power

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Iterative Artificial Hummingbird Algorithm-Driven Reconfiguration for microgrids under Multiple Interconnection Scenarios

Energy 360

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Energy 360 2025年 3卷

作者： Ahmed M. Helmi Wiam Ayrir Haitham S. Ramadan Computer Engineering Department College of Engineering and Information Technology Buraydah Private Colleges Buraydah 51418 Saudi Arabia Computer and Systems Engineering Department Faculty of Engineering Zagazig University Zagazig Egypt Advanced Systems Engineering (ASE) Laboratory National School of Applied Sciences Ibn Tofail University Kenitra Morocco Electrical Power and Machines Department Zagazig University Zagazig Egypt Institut International sur le Stockage de l’Hydrogene (ISTHY) Belfort Territory Morvillars 90400 Belfort France

This paper presents a comprehensive study on the reconfiguration of power distribution networks (PDN) within interconnected microgrids (MGs), utilizing the Artificial Hummingbird Algorithm (AHA), Particle Swarm Optimization (PSO), and the Slime Mould Algorithm (SMA) for optimization. The objective is to minimize power loss and improve voltage profiles across the interconnected systems while maintaining a radial topology within each microgrid and the overall interconnection. Building on previous work, which focused solely on horizontal interconnection in two 20-bus systems, this study expands the scope by incorporating vertical and diagonal interconnection scenarios for the 20-bus systems. Additionally, it explores these configurations within a 69-bus system model. Simulation results demonstrate that while all three algorithms improve power loss reduction and voltage stability, AHA consistently outperforms PSO and SMA. The findings contribute to a robust framework for PDN reconfiguration, addressing the complexities of various interconnection configurations and providing valuable insights into enhancing the performance and sustainability of interconnected MGs.

关键词： Power distribution network Reconfiguration Interconnected MGs AHA Optimization Interconnection scenarios

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Approximating probability distributions to reduce storage requirements

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Information and Control 1959年第N 3期v 2卷 p214-225页

作者： Lewis, P.M. General Electric Research Laboratory Schenectady New York USA Department of Electrical Engineering and Computer Components and Systems Group Massachusetts Institute of Technology Cambridge Massachusetts USA

Theoretical discussion of computer storage of several lower order component distributions and use of this partial information to form approximation to actual higher order distribution;method is based on information me... 详细信息

关键词： computers

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NOVEL TEST STRUCTURE FOR THE MEASUREMENT OF ELECTROSTATIC DISCHARGE PULSES

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IEEE TRANSACTIONS ON SEMICONDUCTOR MANUFACTURING 1991年第3期4卷 213-218页

作者： LENDENMANN, H SCHRIMPF, RD BRIDGES, AD Integrated Systems Laboratory Swiss Federal Institute of Technology Zurich Switzerland Department of Electrical and Computer Engineering University of Arizona Tucson Tucson AZ USA AT and T Microelectronics Allentown PA USA

A test chip to measure electrostatic discharge (ESD) events was designed and fabricated. The structure for the measurement of the pulses was based on a floating-gate field-effect transistor. Experiments showed that the shift of the device characteristics following an ESD event can be used to measure ESD pulse magnitudes down to approximately 60 V.

关键词： Pulse measurements Testing Electrostatic measurements Electrostatic discharge Voltage Semiconductor device measurement Nonvolatile memory Electrons Bridge circuits FETs

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Survey of Robust Control for Rigid Robots

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IEEE Control systems 1991年第2期11卷 24-30页

作者： Abdallah, C. Dorato, P. Jamshidi, M. Dawson, D. CAD Laboratory for Systems and Robotics Electrical and Computer Engineering Department University of New Mexico Albuquerque NM 87131 United States Department of Electrical and Computer Engineering Clemson University Clemson SC 29634-0915 United States

This survey discusses current approaches to the robust control of the motion of rigid robots and summarizes the available literature on the subject. The five major designs discussed are the “Linear-Multivariable” approach, the “Passivity” approach, the “Variable-Structure” approach, the “Saturation” approach and the “Robust-Adaptive” approach. © 1991 IEEE

关键词： Robust control Robot kinematics Adaptive control Programmable control Control systems Robot control Equations Robustness Uncertainty Lagrangian functions

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