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IEEE International Symposium on Biomedical Imaging

作者： Xiao Zheng Jun Shi Yan Li Xiao Liu Qi Zhang School of Communication and Information Engineering Shanghai University Shenzhen City Key Laboratory of Embedded System Design College of Computer Science and Software Engineering Shenzhen University China

ISBN: (纸本)9781479923519

Feature representation is the critical factor for the computer-aided Alzheimer's disease (AD) diagnosis. Deep polynomial network (DPN) is a novel deep learning algorithm, which can effectively learn feature representation from small samples. In this work, a stacked DPN (S-DPN) algorithm is proposed to further improve feature representation. We then propose a multi-modality S-DPN (MM-S-DPN) algorithm to fuse multi-modality neuroimaging data and learn more discriminative and robust feature representation for AD classification. Experiments are performed on ADNI dataset with MRI and PET images as multi-modality data. The results indicate that S-DPN is superior to DPN and stacked auto-encoder algorithms. Moreover, MM-S-DPN achieves best performance compared with single-modality S-DPN and other multi-modality feature learning based algorithms.

关键词： Classification algorithms Magnetic resonance imaging Positron emission tomography Neuroimaging Diseases Training Machine learning

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A comprehensive software-based self-test and self-repair method for statically scheduled superscalar processors

A comprehensive software-based self-test and self-repair met...

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Latin American Test Workshop, LATW

作者： Mario Schölzel Tobias Koal Sebastian Müller Stefan Scharoba Stephanie Röder Heinrich T. Vierhaus System Design Department IHP GmbH Frankfurt (Oder) and University of Potsdam Germany Computer Engineering Group Brandenburg University of Technology Cottbus Germany

The integration of a diagnostic software-based self-test and a software-based self-repair method into a single statically scheduled superscalar processor is presented. The self-test method is used as start-up test in-the-field in order to detect and localize permanent faults in the processor. The determined fault state is handed over to a software-based self-repair program. This program adapts the user application, which should be executed on the core, to the current fault state. Thereby both methods are able to cope with multiple permanent faults in the core. For this purpose the self-test programs as well as the self-repair program can be adapted to the current fault state, too. The paper also describes the diagnostic capability of the self-test programs and the achieved fault coverage. The hardware and program memory overhead for the self-test and self-repair programs is reported, too.

关键词： Program processors Built-in self-test Circuit faults VLIW Schedules Redundancy Hardware

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Robust guided image filtering

arXiv

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arXiv 2017年

作者： Liu, Wei Chen, Xiaogang Shen, Chunhua Yu, Jingyi Wu, Qiang Yang, Jie Key Laboratory of Ministry of Education for System Control and Information Processing Shanghai Jiao Tong University Shanghai200240 China College of Communication and Art Design University of Shanghai for Science and Technology Shanghai200093 China School of Computer Science University of Adelaide AdelaideSA5005 Australia College of Engineering University of Delaware NewarkDE19176 United States School of Computing and Communications University of Technology SydneyNSW2007 Australia

The process of using one image to guide the filtering process of another one is called Guided Image Filtering (GIF). The main challenge of GIF is the structure inconsistency between the guidance image and the target image. Besides, noise in the target image is also a challenging issue especially when it is heavy. In this paper, we propose a general framework for Robust Guided Image Filtering (RGIF), which contains a data term and a smoothness term, to solve the two issues mentioned above. The data term makes our model simultaneously denoise the target image and perform GIF which is robust against the heavy noise. The smoothness term is able to make use of the property of both the guidance image and the target image which is robust against the structure inconsistency. While the resulting model is highly non-convex, it can be solved through the proposed Iteratively Re-weighted Least Squares (IRLS) in an efficient manner. For challenging applications such as guided depth map upsampling, we further develop a data-driven parameter optimization scheme to properly determine the parameter in our model. This optimization scheme can help to preserve small structures and sharp depth edges even for a large upsampling factor (8× for example). Moreover, the specially designed structure of the data term and the smoothness term makes our model perform well in edge-preserving smoothing for single-image tasks (i.e., the guidance image is the target image itself). It performs well in several challenging applications in avoiding halos, gradient reversals and properly preserving edges with noise/texture being well smoothed. Through extensive experimental results, we show that the proposed RGIF can have promising performance in many applications such as guided depth map upsampling, flash/no flash filtering, detail enhancement, HDR tone mapping, structure smoothing and clip-art JPEG compression artifact removal. This paper is an extension of our previous work [1], [2]. Copyright © 2017, T

关键词： Image enhancement

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Equal power sharing in islanded AC/DC hybrid microgrids

Equal power sharing in islanded AC/DC hybrid microgrids

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IEEE Canada Electric Power Conference, EPEC

作者： A. A. Eajal E. F. El-Saadany K. Ponnambalam Department of Electrical and Computer Engineering University of Waterloo Waterloo ON Canada Petroleum Institute (PI) Abu Dhabi UAE Department of System Engineering Design University of Waterloo Waterloo ON Canada

ISBN: (纸本)9781509019205

AC/DC hybrid microgrid is a promising architecture that allows for hosting energy resources and modern loads from AC and DC types; and in turn, it reduces the number of conversion stages among other technical and economical benefits. Consequently, power distribution planners started to investigate the possibility of hybridizing the existing AC grids and designing new AC/DC hybrid clusters referred to as microgrids as a step towards the envisioned smart grid with AC/DC technologies and “plug-and-play” feature. Nevertheless, while being islanded, AC/DC hybrid microgrids bring operational challenges to the system operation such as coordination among the distributed resources in both AC/DC subgrids, control and management of the power transfer through the interlinking converters, droop control of inverter-based distributed energy resources, and accurate power sharing. This paper looks closely at the problem of active and reactive power sharing in islanded droop-based AC/DC hybrid microgrids and proposes a unified power sharing scheme that is able to simultaneously ensure precise power sharing in both AC and DC subgrids. Test results demonstrate the capability of the proposed scheme in achieving exact power sharing not only among the energy resources in proportion to their ratings but also among the interlinking converters.

关键词： Microgrids Hybrid power systems Reactive power Integrated circuits Voltage control Energy resources Frequency control

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Power flow analysis of AC/DC hybrid microgrids

Power flow analysis of AC/DC hybrid microgrids

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IEEE Canada Electric Power Conference, EPEC

作者： A. A. Eajal Mohamed A. Abdelwahed E. F. El-Saadany K. Ponnambalam Department of Electrical and Computer Engineering University of Waterloo Waterloo ON Canada Department of Electrical and Computer Engineering Petroleum Institute (PI) Abu Dhabi UAE University of Waterloo Waterloo ON CA Department of System Engineering Design University of Waterloo Waterloo ON Canada

ISBN: (纸本)9781509019205

The future smart grid can have an AC/DC hybrid structure that enables the integration of AC/DC energy supply and demand, thus permitting the formation of AC/DC hybrid microgrids (HMGs). The AC/DC HMG is a promising concept that provides the envisioned smart grid with the plug-and-play feature. Nevertheless, understanding such hybrid systems, especially during islanding, require an accurate and robust load flow program. To this end, this paper proposes a novel robust power flow algorithm for isolated AC/DC HMGs. The power flow problem is formulated as a least-squares minimization problem, and solved using the Levenberg-Marquardt algorithm. The accuracy of the proposed load flow algorithm is validated against time domain simulation results, while its robustness is demonstrated on a highly-resistive network. The proposed load flow algorithm is expected to reveal the light for further studies on AC/DC HMGs.

关键词： Integrated circuit modeling Voltage measurement Microgrids Mathematical model Power measurement Q measurement

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Fuzzy logic controller design for intelligent air-conditioning system

Fuzzy logic controller design for intelligent air-conditioni...

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IEEE International Conference on Control Science and systems engineering (CCSSE)

作者： Nizam Uddin Ahamed Zahari Bin Taha Ismail Bin Mohd Khairuddin M.F. Rabbi S.A.M. Matiur Rahaman Kenneth Sundaraj Mechatronic and System Design Lab Faculty of Manufacturing Engineering Universiti Malaysia Pekan Pahang Malaysia Faculty of Manufacturing Engineering Universiti Malaysia Pekan Pahang Malaysia College of Computer Science and Information System Najran University Saudi Arabia AI-Rehab Research Group Universiti Teknikal Malaysia Melaka Melaka Malaysia

ISBN: (纸本)9781467398732

In efficient air cooling systems may cause of wasting energy in a great amount specially in the urban area. Being the most popular cooling system, air-conditioners have been used in domestic usage as well as in industrial applications. However, the unintelligent nature of such cooling system gives rise to excess energy consumption which causes a huge problem in the current energy hungry world. In this paper, we present design of a fuzzy logic controller for the intelligent air-conditioning system. The performance of the controller is also simulated. The proposed controller has the adaptive nature to control fan and compressor speed which leads to reducing power consumption. Also, the system controls the operation mode to retain the healthy oxygen level and humid condition of the indoor environment.

关键词： Humidity Fuzzy logic Fans Energy consumption Power demand

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Inexact Power Sharing in AC/DC Hybrid Microgrids

Inexact Power Sharing in AC/DC Hybrid Microgrids

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IEEE Canadian Conference on Electrical and computer engineering

作者： A. A. Eajal E. F. El-Saadany K. Ponnambalam Department of Electrical and Computer Engineering University of Waterloo Waterloo ON N2L 3G1 Canada Department of System Engineering Design University of Waterloo Waterloo ON N2L 3G1 Canada

ISBN: (纸本)9781467387224

The AC/DC hybrid topology for the future smart grid is a promising configuration that allows integrating the energy resources and modern loads of AC and DC type. Understanding the AC/DC hybrid microgrids (HMGs) operating in islanding mode and its operational philosophy will pave the road towards the future smart grid with a plug-and-play feature. This paper analyzes an operational aspect related to isolated AC/DC hybrid microgrids and that is the problem of inaccurate power sharing. The simulation results reveal that the unequal reactive power sharing in AC microgrids and the inexact active power sharing in DC microgrids will migrate to AC/DC hybrid microgrids. The research outcomes also show that the interlinking converters encounter the same problem of inexact power sharing.

关键词： Smart grids ADIPOQ gene Energy sources Simulation results HYBRID Hybrid electric vehicles ALTERNATING CURRENT

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Strategies for driving and egress for the vehicle of a humanoid robot in the drc finals 2015

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Journal of Institute of Control, Robotics and systems 2016年第11期22卷 912-918页

作者： Dong, Hyun Ahn Ju, Seong Shin Jun, Youngbum Sohn, Kiwon Jang, Giho Oh, Paul Cho, Baek-Kyu Department of Mechanics and Design Kookmin University Korea Republic of School of Mechanical System Engineering Kookmin University Korea Republic of Howard R. Hughes College of Engineering University of Nevada Las Vegas United States Samuel I. Ward Department of Electrical and Computer Engineering University of Hartford West HartfordCT United States

This paper presents various strategies for humanoid vehicle driving and egress tasks. For driving, a tele-operating system that controls a robot based on a human operator's commands is built. In addition, an autonomous assistant module is developed for the operator. Normal position control can result in severe damage to robots when they egress from vehicles. To prevent this problem, another approach that mixes various joint control techniques is adopted in this study. Additionally, a footplate is newly designed and attached to the vehicle floor for the ground landing phase of the egress task. The attached plate enables the robot to step down onto the ground in a safe manner. For stable locomotion, a balance controller is designed for the humanoid. For the design of the controller, the robot is modeled using an inverted pendulum that consists of a spring and a damper. Then, a state feedback controller (with pole placement and a state observer) is built based on the simplified model. Many approaches that are presented in this paper were successfully applied to a full-sized humanoid, DRC-HUBO+, in the DARPA Robotics Challenge Finals, which were held in the United States in 2015.

关键词： Anthropomorphic robots

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Modeling and design of system-in-package integrated voltage regulator with thermal effects

Modeling and design of system-in-package integrated voltage ...

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IEEE Topical Meeting on Electrical Performance of Electronic Packaging (EPEPS)

作者： S. Mueller A. K. Davis M. L. F. Bellaredj A. Singh K. Z. Ahmed M. Kar S. Mukhopadhyay P. A. Kohl M. Swaminathan Y. Wang J. Wong S. Bharathi Y. Mano A. Beece B. Fasano H. Fathi Moghadam D. Draper Center for Co-Design of Chip Package System (C3PS) School of Electrical and Computer Engineering School of Chemistry and Biochemistry Georgia Institute of Technology Atlanta GA USA Xilinx USA IBIDEN Japan GLOBALFOUNDRIES USA Oracle USA

ISBN: (纸本)9781509061112

This paper demonstrates a new approach to model the impact of thermal effects on the efficiency of integrated voltage regulators (IVRs) by combining analytical efficiency evaluations with coupled electrical and thermal simulations. An application of the approach shows that a system-in-package solution avoids thermal problems typically observed in other IVR designs. While the evaluation in this paper focuses on the thermal impact on loss in the inductor wiring and the PDN, the developed approach is general enough to also model thermal impacts on the power dissipation in the inductor cores and the buck converter chip.

关键词： Inductors Analytical models Thermal analysis Voltage control Regulators Power dissipation Magnetic cores

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On Simulation for Fuzzy Control on Oxygen Concentration of the Mixed Air Supplied by Breathing Adjuster 34

On Simulation for Fuzzy Control on Oxygen Concentration of t...

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第三十四届中国控制会议

作者： SUN Hao WANG Shou-jun SUN Qing-lin Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System The College of Mechanical Engineering Tianjin University of Technology The College of Computer and Control Engineering Nankai University Tianjin Key Laboratory of Intelligent Robotics

ISBN: (纸本)9781467374439

The breathing adjuster is the core component of life support system of an aircraft and it is very important to control the valve to make the breathing adjuster supply the pilot the mixed air with the suitable oxygen concentration. In this paper the mathematical model, which describes the relation between the opening degree of the valve of the breathing adjuster and the flight altitude of the aircraft, is set up through analyzing requirement of aviation physiology and working principles of the breathing adjuster. Then a fuzzy controller is designed to control the opening degree of the valve in order to make the breathing adjuster supply to the pilot the mixed air with suitable oxygen concentration. Finally MATLAB Simulink is employed to verify the feasibility and validity of the fuzzy controlling approach. The results of simulating experiments show that the fuzzy control approach proposed in this paper can make the breathing adjuster supply the mixed air with suitable oxygen concentration to the pilot boarded on an aircraft.

关键词： Breathing adjuster,Oxygen concentration,the opening degree of the valve,Fuzzy control,Simulation

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