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5th Asia Conference on Energy and Electrical Engineering, ACEEE 2022

作者： Kong, Dekang Li, Weichao Han, Jinyang Deng, Chen Yan, Ming Zhou, Liang National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering Wuhan China National Key Laboratory of Science and Technology on Vessel Integrated Power System Vessel Integrated Power System Wuhan China

ISBN: (数字)9781665499330

ISBN: (纸本)9781665499330

Band-pass filter (BPF) and low-pass filter (LPF) are generally used to extract the position error signal of permanent magnet synchronous linear motor (PMSLM) in the traditional high-frequency (HF) pulsating voltage injection method. However, filters will generate system delay and affect the dynamic performance of the system. Therefore, this paper proposes to combine the generalized second-order integrator (SOGI) and notch filter (NF) to form an improved generalized second-order integrator (SOGI-NF). This structure effectively reduces the time delay caused by signal processing and shortens the operation time by replacing the BPF. Meanwhile, compared with the traditional SOGI, it has stronger harmonic attenuation ability, wider bandwidth and better dynamic performance. Finally, the feasibility and superiority of the position error signal extraction strategy based on the improved second-order generalized integrator are verified by simulation. © 2022 IEEE.

关键词： Bandpass filters

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Robust and Trustworthy Data Sharing Framework Leveraging On-Chain and Off-Chain Collaboration

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Computers, Materials & Continua 2024年第2期78卷 2159-2179页

作者： Jinyang Yu Xiao Zhang Jinjiang Wang Yuchen Zhang Yulong Shi Linxuan Su Leijie Zeng School of Computer Science Northwestern Polytechnical UniversityXi’an710072China MIIT Key Laboratory of Big Data Storage and Management Northwestern Polytechnical UniversityXi’an710072China National Engineering Laboratory for Integrated Aero-Space-Ground-Ocean Big Data Application Technology Northwestern Polytechnical UniversityXi’an710072China

The proliferation of Internet of Things(IoT)systems has resulted in the generation of substantial data,presenting new challenges in reliable storage and trustworthy *** distributed storage systems are hindered by centralized management and lack traceability,while blockchain systems are limited by low capacity and high *** address these challenges,the present study investigates the reliable storage and trustworthy sharing of IoT data,and presents a novel system architecture that integrates on-chain and off-chain data manage *** architecture,integrating blockchain and distributed storage technologies,provides high-capacity,high-performance,traceable,and verifiable data storage and *** on-chain system,built on Hyperledger Fabric,manages metadata,verification data,and permission information of the raw *** off-chain system,implemented using IPFS Cluster,ensures the reliable storage and efficient access to massive files.A collaborative storage server is designed to integrate on-chain and off-chain operation interfaces,facilitating comprehensive data *** provide a unified access interface for user-friendly system *** testing validates the system’s reliability and stable *** proposed approach significantly enhances storage capacity compared to standalone blockchain *** reliability tests consistently yield positive *** average upload and download throughputs of roughly 20 and 30 MB/s,respectively,the system’s throughput surpasses the blockchain system by a factor of 4 to 18.

关键词： On-chain and off-chain collaboration blockchain distributed storage system hyperledger fabric IPFS cluster

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Graphene MEMS and NEMS

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Microsystems & Nanoengineering 2024年第5期10卷 1-34页

作者： Kuge Fan Chang He Jie Ding Qiang Gao Hongliang Ma Max CLemme Wendong Zhang Advanced Research Institute of Multidisciplinary Sciences Beijing Institute of Technology100081 BeijingChina Center for Interdisciplinary Science of Optical Quantum and NEMS Integration School of PhysicsBeijing Institute of Technology100081 BeijingChina School of Integrated Circuits and Electronics Beijing Institute of Technology100081 BeijingChina Chair of Electronic Devices Faculty of Electrical Engineering and Information TechnologyRWTH Aachen UniversityOtto-Blumenthal-Str.2552074 AachenGermany AMO GmbH Otto-Blumenthal-Str.2552074 AachenGermany state Key Laboratory of Dynamic Measurement Technology North University of ChinaTaiyuan 030051China National Key Laboratory for Electronic Measurement Technology School of Instrument and ElectronicsNorth University of ChinaTaiyuan 030051China

Graphene is being increasingly used as an interesting transducer membrane in micro-and nanoelectromechanical systems(MEMS and NEMS,respectively)due to its atomical thickness,extremely high carrier mobility,high mechanical strength,and piezoresistive electromechanical *** devices based on graphene feature increased sensitivity,reduced size,and new *** this review,we discuss the merits of graphene as a functional material for MEMS and NEMS,the related properties of graphene,the transduction mechanisms of graphene MEMS and NEMS,typical transfer methods for integrating graphene with MEMS substrates,methods for fabricating suspended graphene,and graphene patterning and electrical ***,we provide an overview of devices based on suspended and nonsuspended graphene ***,we discuss the potential and challenges of applications of graphene in MEMS and *** to its unique features,graphene is a promising material for emerging MEMS,NEMS,and sensor applications.

关键词： integrating suspended electrical

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Graphene binding on black phosphorus enables high on/off ratios and mobility

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national science Review 2024年第2期11卷 188-195页

作者： Fanrong Lin Zhonghan Cao Feiping Xiao Jiawei Liu Jiabin Qiao Minmin Xue Zhili Hu Ying Liu Huan Lu Zhuhua Zhang Jens Martin Qingjun Tong Wanlin Guo Yanpeng Liu Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education State Key Laboratory of Mechanics and Control of Mechanical Structures and Institute for Frontier Science Nanjing University of Aeronautics and Astronautics Centre for Advanced 2D Materials National University of Singapore School of Physics and Electronics Hunan University Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and MeasurementSchool of PhysicsBeijing Institute of Technology Leibniz Institute für Kristallzüchtung

Graphene is one of the most promising candidates for integrated circuits due to its robustness against short-channel effects, inherent high carrier mobility and desired gapless nature for Ohmic contact, but it is difficult to achieve satisfactory on/off ratios even at the expense of its carrier mobility, limiting its device applications. Here, we present a strategy to realize high back-gate switching ratios in a graphene monolayer with well-maintained high mobility by forming a vertical heterostructure with a black phosphorus multi-layer. By local current annealing, strain is introduced within an established area of the graphene, which forms a reflective interface with the rest of the strain-free area and thus generates a robust off-state via local current depletion. Applying a positive back-gate voltage to the heterostructure can keep the black phosphorus insulating, while a negative back-gate voltage changes the black phosphorus to be conductive because of hole accumulation. Then, a parallel channel is activated within the strain-free graphene area by edge-contacted electrodes, thereby largely inheriting the intrinsic carrier mobility of graphene in the on-state. As a result, the device can provide an on/off voltage ratio of >10～3 as well as a mobility of ～8000 cm2V-1s-1at room temperature, meeting the low-power criterion suggested by the International Roadmap for Devices and Systems.

关键词： graphene on/off ratio mobility black phosphorus reflective interface

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Confined gas transport in low-dimensional materials

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International Journal of Smart and Nano Materials 2024年第1期15卷 127-164页

作者： Hongwei Duan Zeyu Zhuang Jing Yang Shengping Zhang Luda Wang National Key Laboratory of Advanced Micro and Nano Manufacture Technology School of Integrated CircuitsPeking UniversityBeijingChina Academy for Advanced Interdisciplinary Studies and Center for Nanochemistry Beijing Science and Engineering Center for NanocarbonsPeking UniversityBeijingChina Beijing Advanced Innovation Center for Integrated Circuits BeijingChina Technology Innovation Center of Graphene Metrology and Standardization for State Market Regulation Beijing Graphene instituteBeijingChina

Gas transport under confinement exhibits a plethora of physical and chemical phenomena that differ from those observed in bulk media,owing to the deviations of continuum description at the molecular *** biological systems,gas channels play indispen-sable roles in various physiological functions by regulating gas transport across cell ***,investigating gas trans-port under such confinement is crucial for comprehending cellular physiological ***,leveraging these underlying mechanisms can enable the construction of bioinspired artificial nanofluidic devices with tailored gas transport properties akin to those found in biological *** review provides a comprehensive summary of confined gas transport mechanisms,focusing on the unique effects arising from ***,we categorize nanoconfinement spaces based on dimensionality to elucidate their control over gas transport ***,we highlight the potential of bioinspired smart gas membranes that mimic precise modulation of transportation observed in *** conclude,we present a concise outlook on the challenges and opportunities in this rapidly expanding field.

关键词： Nanofluidics gas transport transport mechanism low-dimensional materials smart membranes

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A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

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Frontiers of Environmental science & Engineering 2023年第3期17卷 75-86页

作者： Jiachuang Shao Penghui Shao Mingming Peng Min Li Ziwei Yao Xiuqin Xiong Caiting Qiu Yufan Zheng Liming Yang Xubiao Luo Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource utilizationNanchang Hangkong UniversityNanchang 330063China Department of Chemical Engineering Chongqing University of Science and TechnologyChongqing 401331China

The selective capture of copper from strongly acidic solutions is of vital importance from the perspective of sustainable development and environmental *** organic frameworks(MOFs)have attracted the interest of many scholars for adsorption due to their fascinating physicochemical characteristics,including adjustable structure,strong stability and ***,pz-UiO-66 containing a pyrazine structure is successfully synthesized for the efficient separation of copper from strongly acidic *** copper removal at low pH values is accomplished by using this material that is not available in previously reported metal–organic ***,the material exhibits excellent adsorption capacity,with a theoretical maximum copper uptake of 247 mg/*** proven by XPS and FT-IR analysis,the coordination of pyrazine nitrogen atoms with copper ions is the dominant adsorption mechanism of copper by *** work provides an opportunity for efficient and selective copper removal under strongly acidic conditions,and promises extensive application prospects for the removal of copper in the treatment for acid metallurgical wastewater.

关键词： Pyrazine Metal-organic frameworks Copper removal Strong acidity High selectivity

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Advances on jarosite residue detoxification and reutilization: a review

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Environmental science and Pollution Research 2025年第7期32卷 3571-3592页

作者： Chen, Mengjun Wang, Rong Fan, Wei Wang, Jiqin Zeng, Xiangfei Han, Yunhui Liang, Qian Huang, Rong Zhou, Songshan Shu, Jiancheng Ministry of Education Southwest University of Science and Technology 59 Qinglong Road Mianyang621010 China School of National Defense & Nuclear Science and Technology Southwest University of Science and Technology 59 Qinglong Road Mianyang621010 China Inner Mongolia JiuKeKangRui Environmental Protection Technology Co Ltd Inner Mongolia Ordos017000 China School of Environment Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control Ministry of Education Henan Normal University Xinxiang453007 China

Jarosite residues are typical hazardous waste byproducts generated during the iron removal process in hydrometallurgical solutions. The jarosite process is widely used for iron removal in zinc hydrometallurgy;jarosite disposal has become a significant barrier to sustainable development in the industry. During this process, jarosite residues entrain and co-precipitate with heavy metals, which are hazardous but valuable. To better understand jarosite residue pollution control and circular recycling, we reviewed related research conducted over the past two decades, analyzed their characteristics, discussed state-of-the-art technologies for jarosite residue detoxification and reutilization, and proposed feasible suggestions for jarosite circular reutilization. We hope that this review helps solve the problem of jarosite residues and promote the sustainable development of the zinc hydrometallurgical industry. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Heavy metals

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Genome-resolved metagenomic analysis reveals different functional potentials of multiple Candidatus Brocadia species in a full-scale swine wastewater treatment system

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Frontiers of Environmental science & Engineering 2023年第1期17卷 13-25页

作者： Yabing Meng Depeng Wang Zhong Yu Qingyun Yan Zhili He Fangang Meng School of Environmental Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology Sun Yat-sen UniversityGuangzhou 510275China National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Changsha 410125China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China

The increasing application of anammox processes suggests their enormous potential for nitrogen removal in wastewater treatment ***,the functional potentials and ecological differentiation of cooccurring anammox species in complex ecosystems have not been well ***,by utilizing functional reconstruction and comparative genome analysis,we deciphered the cooccurring mechanisms of four Candidatus Brocadia species that were spontaneously enriched in a full-scale swine wastewater treatment *** analysis indicated that species SW172 and SW745 were closely related to *** caroliniensis and *** sapporoensis,respectively,whereas the dominant species SW510 and SW773,with a total average abundance of 34.1%,were classified as novel species of the genus *** reconstruction revealed that the novel species SW510 can encode both cytochrome cd1-type nitrite reductase and hydroxylamine oxidase for nitrite *** contrast,the detected respiratory pentaheme cytochrome c nitrite reductase and acetate kinase genes suggested that SW773 likely reduced nitrite to ammonium with acetate as a carbon ***,the presence of genes encoding urease and cyanase indicated that both novel species can use diverse organic nitrogen compounds in addition to ammonia and nitrite as *** together,the recovery and comparative analysis of these anammox genomes expand our understanding of the functional differentiation and cooccurrence of the genus *** in wastewater treatment systems.

关键词： Anammox Candidatus Brocadia Functional potential Cooccurring mechanisms Swine wastewater treatment facilities

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Halogenated Thienoacene Derivatives with Improved Emission Properties

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Chemical Research in Chinese Universities 2024年第4期40卷 699-703页

作者： ZHANG Jingmei MENG Zhihao ZHEN Yonggang HE Ping YU Panpan HU Wenping Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029P.R.China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan430074P.R.China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian116024P.R.China Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province China West Normal UniversityNanchong637000P.R.China Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal UniversityNanchang330022P.R.China MOE Key Laboratory of Organic Integrated Circuits&Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistrySchool of SciencesTianjin UniversityTianjin300072P.R.China

Thienoacenes is one of most important groups of semiconducting materials due to the high stability and superior ***,there are scarce studies on the emission properties of thienoacenes to ***,we synthesized fluorinated and chlorinated dibenzo[d,d’]thieno[3,2-b;4,5-b’]dithiophenes(DBTDTs)derivatives F6-DBTDT and Cl6-DBTDT by sulfoxide cyclization,significantly lowering the energy levels relative to the parent compound *** to single crystal structure analysis,F6-DBTDT molecules adopt one-dimensional slipped stacking with closeπ-πinteractions of 3.43Å(1Å=0.1 nm),which is different from the parent compound DBTDT with herringbone stacking ***,the halogenated DBTDT derivatives exhibit enhanced emission properties both in solution and in the solid state,opening up possiblities to improve photoluminescence of thienoacences by halogenation.

关键词： Thienoacene Halogenation Photoluminescence Aggregation structure

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Method for Evaluating the Performance of Aircraft Collaborative Decision-Making Based on Dynamic Bayesian Network

Method for Evaluating the Performance of Aircraft Collaborat...

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2024 International Conference on Electronics and Devices, Computational science, ICEDCS 2024

作者： Zhang, Wenbo Yu, Boxiao Tong, Jiahui Li, Jing Beijing Electro-Mechanical Engineering Institute National Key Laboratory of Complex System Control and Intelligent Agent Cooperation Beijing China Beijing Institute of Technology School of Computer Science and Technology Beijing China

ISBN: (纸本)9798331527624

This research addresses the challenge of assessing equipment decision-making effectiveness in environments characterized by uncertainty and multiple influencing factors. We propose a novel approach involving the creation and optimization of a dynamic Bayesian network-based model tailored for equipment decision-making processes. The model facilitates a systematic evaluation of decision-making effectiveness by incorporating various factors, including equipment performance, environmental conditions, and enemy defensive capabilities. A comprehensive assessment system has been developed to simulate the penetration capabilities of different equipment through enemy defenses. Moreover, this study identifies potential errors in the effectiveness evaluation model by analyzing its performance in typical scenarios, pinpointing areas for enhancement. © 2024 IEEE.

关键词： Decision-making Dynamic Bayesian networks Equipment Simulation Uncertainty Management

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