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arXiv 2020年

作者： Mei, Yikun Gao, Zhen Wu, Yongpeng Chen, Wei Zhang, Jun Ng, Derrick Wing Kwan Di Renzo, Marco School of Information and Electronics Beijing Institute of Technology Beijing100081 China Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200240 China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing100044 China School of Electrical Engineering and Telecommunications University of New South Wales SydneyNSW2025 Australia Laboratoire des Signaux et Systèmes CNRS CentraleSupélec Univ Paris Sud Université Paris-Saclay Paris91192 France

Massive machine-type communications (mMTC) are poised to provide ubiquitous connectivity for billions of Internet-of-Things (IoT) devices. However, the required low-latency massive access necessitates a paradigm shift in the design of random access schemes, which invokes a need of efficient joint activity and data detection (JADD) algorithms. By exploiting the feature of sporadic traffic in massive access, a beacon-aided slotted grant-free massive access solution is proposed. Specifically, we spread the uplink access signals in multiple subcarriers with pre-equalization processing and formulate the JADD as a multiple measurement vectors (MMV) compressive sensing problem. Moreover, to leverage the structured sparsity of uplink massive access signals among multiple time slots, we develop two computationally efficient detection algorithms, which are termed as orthogonal approximate message passing (OAMP)MMV algorithm with simplified structure learning (SSL) and accurate structure learning (ASL). To achieve accurate detection, the expectation maximization algorithm is exploited for learning the sparsity ratio and the noise variance. To further improve the detection performance, channel coding is applied and successive interference cancellation (SIC)-based OAMP-MMV-SSL and OAMP-MMV-ASL algorithms are developed, where the likelihood ratio obtained in the soft-decision can be exploited for refining the activity identification. Finally, the state evolution of the proposed OAMP-MMV-SSL and OAMP-MMV-ASL algorithms is derived to predict the performance theoretically. Simulation results verify that the proposed solutions outperform various state-of-the-art baseline schemes, enabling low-latency random access and high-reliable massive IoT connectivity with overloading. © 2020, CC0.

关键词： Message passing

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A New Sensor for Temperature Self-Protection of Integrated Circuits in CMOS Technology

A New Sensor for Temperature Self-Protection of Integrated C...

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IEEE MTT-S Latin America Microwave Conference (LAMC)

作者： Luis Q. Cartagena Silvio E. Barbin Walter J. Salcedo Department of Electronic System Engineering Polytechnic School University of Sao Paulo Brazil Department of Telecommunications and Control Engineering Polytechnic School University of Sao Paulo Brazil

ISBN: (纸本)9781538673348;9781538673331

In this paper, it is presented a new temperature sensor designed for self-protection of Integrated Circuits (IC). This sensor mainly prevents damages caused by heating which can lead to burning or malfunctioning of electronic devices. The main objective is to create a small-area low-power consumption protection circuit that operates independently of an external circuitry and self-protects the IC against heating, in a temperature range of -20°C to 120°C. The sensor was designed using Cadence Virtuoso employing the system on a Chip (SoC) concept, for a standard 180nm CMOS technology to operate with a power supply voltage of 1.2V. The results show an effective sensor protection for a temperature range of -40°C to 140°C, which exceeds the range originally specified. The new designed circuit can be used as an excellent protector against heating of an IC.

关键词： Temperature sensors Temperature distribution Integrated circuit modeling Transistors Semiconductor device modeling Temperature control

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Corrigendum to 'Transition in air pollution, disease burden and health cost in China: A comparative study of long-term and short-term exposure' [Environmental Pollution 277 (2021) Start page 4-End page 4/116770]

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Environmental pollution (Barking, Essex : 1987) 2023年 329卷 121714页

作者： Jun Liu Hao Yin Xiao Tang Tong Zhu Qiang Zhang Zhu Liu XiaoLong Tang HongHong Yi Department of Environmental Engineering School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing 100083 PR China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing Beijing 100083 PR China Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System Science Tsinghua University Beijing 100084 PR China. Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System Science Tsinghua University Beijing 100084 PR China School of Population and Public Health The University of British Columbia Vancouver BC Canada Energy and Resources Group University of California Berkeley CA USA. State Key Laboratory of Atmospheric Boundary Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 PR China. State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 PR China. Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing Beijing 100083 PR China. Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants University of Science and Technology Beijing Beijing 100083 PR China. Electronic address: yihonghong@***.

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Corrigendum to "Intravenous immunoglobulin alleviates Japanese encephalitis virus-induced peripheral neuropathy by inhibiting the ASM/ceramide pathway" [Int. Immunopharmacol. 133 (2024) 112083]

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International immunopharmacology 2024年 134卷 112270页

作者： Na Zhang Guowei Wang Liping Yang Jinyuan Zhang YanPing Yuan Lijun Ma Huanyu Wang Zhenhai Wang School of Clinical Medicine Ningxia Medical University Yinchuan Ningxia China Neurology Center General Hospital of Ningxia Medical University Yinchuan Ningxia China. School of Clinical Medicine Ningxia Medical University Yinchuan Ningxia China. Department of Human Anatomy Histology and Embryology School of Basic Medicine Ningxia Medical University Yinchuan Ningxia China. National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China. Electronic address: wanghy@***. Neurology Center General Hospital of Ningxia Medical University Yinchuan Ningxia China Institute of Medical Sciences General Hospital of Ningxia Medical University Diagnosis and Treatment Engineering Technology Research Center of Nervous System Diseases of Ningxia Hui Autonomous Region Yinchuan China. Electronic address: wangzhenhai1968@***.

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Coordinated optimal scheduling of multi-energy microgrid considering uncertainties 2

Coordinated optimal scheduling of multi-energy microgrid con...

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2nd IEEE International Conference on Energy Internet, ICEI 2018

作者： Yang, Zhipeng Zhang, Feng Wang, Guibin Meng, Ke Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Shandong University Jinan China College of Electronic Science and Technology Shenzhen University Shenzhen China School of Electrical Engineering and Telecommunications University of New South Wales Sydney Australia

ISBN: (纸本)9781538641316

Along with the rapid development of regional energy internet and increasingly coupling relation of multiple energies, the paper proposed an optimal operation model of multi-energy microgrid considering uncertainties. In this paper, time-of-use price, uncertainty of renewable energy resources and loads forecasting, energy conversion, operation characteristics of distributed units and energy storage devices are considered. Various forms of energy storage devices are used as energy storage equipment within the microgrid system. The model is solved with mixed integer programming method to obtain the start-stop status, optimal outputs and total operation cost of each units and energy storage, and then compared it with traditional microgrid dispatch model. The simulation results indicate that the proposed model can improve the flexibility of energy supply while insure the system reliability and have good economic benefits. © 2018 IEEE.

关键词： Electric load dispatching

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control Strategy of Hybrid Energy Storage system to Improve AGC Performance of Thermal Generator

Control Strategy of Hybrid Energy Storage System to Improve ...

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2018 International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018

作者： Zhang, Feng Yang, Zhipeng Wang, Guibin Meng, Ke Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Shandong University Jinan China College of Electronic Science and Technology Shenzhen University Shenzhen China School of Electrical Engineering and Telecommunications University of New South Wales Sydney Australia

ISBN: (纸本)9781538642917

Due to the increasing penetration of renewable power generation, the decreasing inertia of power system incurs frequent frequency fluctuation. Considering the limited performance of traditional thermal generator and insufficient reserve capacity, frequency regulation cannot be effectively addressed. In such a case, owing to the ability of fast response, energy storage system (ESS) is regarded as a feasible way to work with traditional thermal generator to promote the total performance. In this paper, a novel control strategy of hybrid energy storage system (HESS) is presented aiming to improve the AGC response speed and precision of HESS-generator system. Case studies are carried out to demonstrate the performance of the proposed method. © 2018 IEEE.

关键词： Energy storage

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Joint beamformer design for wireless fronthaul and access links in C-RANs

Joint beamformer design for wireless fronthaul and access li...

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作者： Hu, Bin Hua, Cunqing Chen, Cailian Guan, Xinping Department of Automation School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai200240 China Key Laboratory of System Control and Information Processing Ministry of Education of China Shanghai200240 China School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai200240 China

This paper presents a joint design framework of fronthaul and access links in cloud radio access networks, wherein the fronthaul data delivery between the central processor (CP) and small-cell base stations (SBSs) is carried over wireless links, which is more cost effective and flexible than the conventional wired fronthaul solutions. In this framework, the coordinated beamforming scheme is adopted by the SBSs to serve the users cooperatively, which not only reduces the bandwidth requirement over the fronthaul links, but also eliminates the inter-cell interference in the access links. To further exploit the spatial diversity over the fronthaul links, the multi-user beamforming scheme is adopted by the CP to deliver the data of all users to their serving SBSs simultaneously. This non-convex and combinatorial optimization problem is reformulated to a unified beamformer design problem using the $\ell -{0}/\ell -{1}$ -norm framework, which is still difficult to obtain the optimal solutions. Therefore, we first propose an algorithm based on the difference of convex (DC) programming scheme to find the suboptimal solutions, whereby the formulated problem is transformed to the standard DC programming problem and solved iteratively using the convex-concave procedure algorithm. We then propose another algorithm based on the successive convex approximation and weighted minimum-mean-squared-error approaches, and solve the transformed problem using the block coordinate update scheme. The pros and cons of these two algorithms are discussed, and simulation results are provided to demonstrate the performance gain of our schemes over other benchmark schemes. © 2018 IEEE.

关键词： Beamforming

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A New FEM-based Brain Tissue Model for Neurosurgical Simulation Using the Optimization Implicit Euler Method

A New FEM-based Brain Tissue Model for Neurosurgical Simulat...

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第37届中国控制会议

作者： Wenguo Hou Peter X.Liu Minhua Zheng Shichao Liu School of Mechanical Electronic and Control EngineeringBeijing Jiaotong University Department of System and Computer Engineering Carleton University

An accurate and computationally efficient model for the deformation of brain tissue is very important in virtual neurosurgical simulation. In this paper, we introduced a new Finite Element Method(FEM) model, which is based on optimization implicit Euler method, for brain tissue deformation. Specifically, both the anisotropic and viscoelastic properties of brain tissue are incorporated into the model, providing more realistic and accurate description of the mechanical features of brain tissue. In the meantime, the model is particularly suitable for GPU-based computing, making it possible to achieve real-time performance for neurosurgical simulation. Simulation results show that the deformation model exhibits the behaviors of anisotropy and viscoelasticity. The proposed model was implemented on a neurosurgical simulator and it showed that the deformation of brain tissue can be rendered with a relatively high degree of visual realism at a refreshment rate of 23 frames per second in a normal PC.

关键词： Brain Tissue Deformation Model Neurosurgical Simulation Optimization Implicit Euler

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Analysis of Indoor Exclusion Zone in Nuclear Power Plant Environments

Analysis of Indoor Exclusion Zone in Nuclear Power Plant Env...

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2018 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2018

作者： Park, Jong-Eon Youn, Sangwoon Choo, Hosung Choo, Jaeyul Metamaterial Electronic Device Research Center Hongik University Seoul Korea Republic of School of Electronic and Electrical Engineering Hongik University Seoul Korea Republic of Department of Instrumentation Control and Electrical System Korea Institute of Nuclear Safety Daejeon Korea Republic of

This article investigates the indoor exclusion zones (EZs) according to room dimensions and compares them with the free space EZs. Fluctuations in the received power level with respect to the distance for various path... 详细信息

ISBN: (纸本)9781538648346

关键词： Nuclear power plants

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Tracking Filter for Nonballistic Targets in the Near Space Based on Modified Variable Structure Interacting Multiple Model 29

Tracking Filter for Nonballistic Targets in the Near Space B...

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第29届中国控制与决策会议

作者： Lei Qin Di Zhou Jun-long Li Beijing Institute of Electronic System Engineering Department of Control Science and Engineering Harbin Institute of Technology

ISBN: (纸本)9781509046584

As the representative of hypersonic vehicles in the near space,X-51 A and HTV-2 with high speed and irregular acceleration often adopt nonballistic maneuver flight motion,which is hard to be accurately *** paper focuses on three typical nonballistic maneuver models of near space targets,and proposes a new Modified Variable Structure Interacting Multiple Model(MVSIMM) *** the three nonballistic maneuver models,simulation results show that the MVSIMM algorithm is better than Fixed-Structure Interacting Multiple Model(FSIMM) filter algorithms.

关键词： Nonballistic Near Space Mathematical Models of Maneuver Motion Modified Variable Structure Interacting Multiple Model(MVSIMM)

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