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5th International Conference on Circuits and Systems, ICCS 2023

作者： Ding, Bowen Niu, Zhiqiang Chen, Zhikun Zhang, Weizhe Zhang, Bailin Yang, Changhui Wu, Nanjian Liu, Liyuan Feng, Peng State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China School of Physical Science and Technology Ningbo University Zhejiang Ningbo China School of Integrated Circuits University of Chinese Academy of Sciences Beijing China

ISBN: (纸本)9798350308273

This paper presents a novel structure of staggered pad configuration for wire bonding to simultaneously transmit Low-Voltage Differential Signaling (LVDS) data and large power for ultra-high speed global shutter(GS) CMOS image sensor(CIS). In this structure, the inner pads are high-density placed close to the pixel array to achieve large power transmission and small IR drop. The outer pads are low-density placed in the outer area of the chip with independent power ring and power pad to transmit the LVDS data and remove the interference between the CIS power line and LVDS circuit. Noise impact of power line on the LVDS signal line has been modeled, analyzed and simulated. A prototype GS CIS chip with the proposed structure has been fabricated in a 110nm CIS process. The measurement results show that the chip can provide large power of 9.7 W to the CIS and transmit LVDS data at speed of 250Mbps per channel. © 2023 IEEE.

关键词： CMOS integrated circuits

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Effects of power on ion behaviors in radio-frequency magnetron sputtering of indium tin oxide(ITO)

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Plasma science and technology 2024年第7期26卷 116-122页

作者：李茂洋莫超超陈佳丽季佩宇谭海云张潇漫崔美丽诸葛兰剑吴雪梅黄天源 School of Physical Science and Technology Soochow UniversitySuzhou 215000People’s Republic of China Key Lab of Thin Film Materials of Jiangsu Province Suzhou 215000People’s Republic of China Suzhou Maxwell Technologies Co.Ltd. Suzhou 215000People’s Republic of China School of Optical and Electronic Information Suzhou City University&Suzhou Key Laboratory of BiophotonicsSuzhou 215104People’s Republic of China School of Optoelectronic Science and Engineering Soochow UniversitySuzhou 215000People’s Republic of China Analysis and Testing Center Soochow UniversitySuzhou 215000People’s Republic of China School of Aviation and Transportation Jiangsu College of Engineering and TechnologyNantong 226006People’s Republic of China

This study delves into ion behavior at the substrate position within RF magnetron discharges utilizing an indium tin oxide(ITO)*** positive ion energies exhibit an upward trajectory with increasing RF power,attributed to heightened plasma potential and initial emergent ***,the positive ion flux escalates owing to amplified sputtering rates and electron ***,negative ions exhibit broad ion energy distribution functions(IEDFs)characterized by multiple *** patterns are clarified by a combination of radiofrequency oscillation of cathode voltage and plasma potential,alongside ion transport *** elucidation finds validation in a one-dimensional model encompassing the initial ion *** higher RF power,negative ions surpassing 100 e V escalate in both flux and energy,posing a potential risk of sputtering damages to ITO layers.

关键词： RF magnetron sputtering ITO film ion energy distribution functions plasma diagnosis

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LabelEase: A Semi-Automatic Tool for Efficient and Accurate Trace Labeling in Microservices 35

LabelEase: A Semi-Automatic Tool for Efficient and Accurate ...

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35th IEEE International Symposium on Software Reliability Engineering, ISSRE 2024

作者： Zhang, Shenglin Che, Zeyu Pan, Zhongjie Nie, Xiaohui Sun, Yongqian Pan, Lemeng Pei, Dan Nankai University China Haihe Laboratory of Information Technology Application Innovation China Chinese Academy of Sciences Computer Network Information Center China Tianjin Key Laboratory of Software Experience and Human Computer Interaction China Huawei China Tsinghua University Beijing National Research Center for Information Science and Technology China

ISBN: (纸本)9798350353884

Trace data is crucial for system observability and maintainability within microservices architectures, and many operation algorithms depend heavily on trace data, including anomaly detection, root cause analysis, etc. However, the actual performance of these algorithms might be unsatisfactory due to the absence of high-quality labeled datasets for effective training and evaluation. Since billions of traces could be generated daily for large-scale microservices, labeling overhead is the main hurdle to obtaining high-quality trace *** this paper, we propose LabelEase, a novel semi-Automatic trace labeling tool, which uses active learning techniques to achieve efficient and accurate trace labeling. For anomaly trace labeling, LabelEase clusters similar traces with a graph-based trace representation technique and selects a few representative traces for human labeling, avoiding labeling most of the traces. For root cause labeling, LabelEase aggregates the labeled anomalous traces and identifies the service's failures for operators to label. Our systematic experiments on two large-scale datasets show that LabelEase achieves over 0.98 F1-score in anomaly trace labeling and 0.89 precision of failure detection in root cause labeling, LabelEase can reduce operators' labeling overhead by more than 99.9%. To the best of our knowledge, we are the first to propose a semi-Automatic trace labeling tool capable of achieving efficient and accurate trace labeling. © 2024 IEEE.

关键词： Labeled data

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Signal Model analysis of Asymmetric Spatial Heterodyne Spectral Velocimetry

Signal Model Analysis of Asymmetric Spatial Heterodyne Spect...

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2023 International Conference on Optoelectronic Information and Functional Materials, OIFM 2023

作者： Peng, Xiang Liu, En-Hai Tian, Shu-Lin Zhao, Ru-Jin Key laboratory of Science and Technology on Space Optoelectronic Precision Measurement Chengdu610209 China Institute of Optics and Electronics Chinese Academy of Sciences Chengdu610209 China Automation Engineering Academy University of Electronic Science and Technology of China Chengdu611731 China School of Optoelectronics University of Chinese Academy of Sciences Beijing100049 China

ISBN: (纸本)9781510668119

The asymmetric spatial heterodyne spectral velocimetry technology is a new high-precision velocimetry method proposed in recent decades, and relevant research institutions have also obtained excellent measurement results at the application level based on this technique. However, past researchers mainly focused on the optimization of its optical characteristics and structure, and without in-depth research on its signal model. This paper analyzed the technique from the principle level, established the relevant mathematical model, and explained the origin of its high resolution. Based on the measurement mechanism described in this paper, on the one hand, it reflects the advantages of asymmetric spatial heterodyne spectral velocimetry technology;on the other hand, it also defines its application scope and defects. Through the research in this paper, the asymmetric spatial heterodyne spectral velocimetry technology can have both ultra-high measurement accuracy and low computational complexity. Furthermore, it also provided a reference for its application range. © 2023 SPIE.

关键词： Velocity measurement

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A Lab-on-Paper Biosensor Using a Two-Step Enzymatic Amplification Strategy for Ultrasensitive Detection of Active Bont/A in Complex Matrices

SSRN

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SSRN 2024年

作者： Hu, Jingfang Xu, Hua Wu, Jianfeng Shen, Yu Mulchandani, Ashok Gao, Guowei Xie, Jianwei Beijing Key Laboratory of Sensor Beijing Information Science and Technology University Beijing100101 China Laboratory of Toxicant Analysis Academy of Military Medical Sciences Beijing100850 China Department of Chemical and Environmental Engineering University of California RiversideCA92521 United States Key Laboratory of Modern Measurement and Control Technology Ministry of Education Beijing Information Science and Technology University Beijing100192 China

Botulinum neurotoxin A (BoNT/A), a lethal bacterial enzyme, is the most toxic biotoxin known to humans. Rapid and effective detection of active BoNT/A is highly significant for food safety and medical diagnosis. Herein, a new low-cost, rapid, portable and easy-to-use paper device was proposed and developed to ultrasensitively determine active BoNT/A. Gold nanoparticles (AuNPs)/graphdiyne (GDY) composite materials with high conductivity and good biocompatibility were synthesized on paper-based electrode to improve electrical conductivity and provide a specific recognition interface for SNAP-25 peptide immobilization. A two-step enzymatic amplification strategy was introduced into the sensing interface, which involved the first enzymatic reaction of target-triggered enzymatic cleavage of SNAP-25 peptide and the second enzymatic reaction of alkaline phosphatase (ALP)-induced enzymatic catalysis of silver deposition on AuNPs/GDY, followed by the recognition of BoNT/A via electrochemical stripping analysis of the deposited silver, resulting in an enhanced response and magnified more than 8-fold sensitivity of the biosensor. In addition, a rotary working electrode was designed and integrated into the paper device to avoid cross-contamination on auxiliary electrodes. The proposed lab-on-paper biosensor offers a quantitative detection of active BoNT/A with a linear range of 5～100 pg/mL and a limit of detection (LOD) of 1 pg/mL (S/N=3). As a demonstration, the biosensor was successfully applied to detect the active BoNT/A in various complex matrices, including bottled water, milk, and human serum, without any sample preconcentration or purification, showing great potential for the early diagnosis of active BoNT/A in low-cost, sensitive and reliable point-of-care (POC) devices. © 2024, The Authors. All rights reserved.

关键词： Gold nanoparticles

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GNN-Based Persistent K-core Community Search in Temporal Graphs

GNN-Based Persistent K-core Community Search in Temporal Gra...

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IEEE International Conference on Big Data

作者： Zongli Jiang Yirui Tan Guoxin Chen Fangda Guo Jinli Zhang Xiaolu Bai Computer Science and Technology Beijing University of Technology Beijing China Key Laboratory of AI Safety Institute of Computing Technology CAS University of Chinese Academy of Sciences Beijing China Key Laboratory of AI Safety Institute of Computing Technology CAS Beijing China

ISBN: (数字)9798350362480

ISBN: (纸本)9798350362497

The goal of community search is to provide effective solutions for real-time, high-quality community searches within large networks. In many practical applications, such as event organization and friend recommendations, discovering various community structures within a network is crucial for users. However, existing community search algorithms rarely address issues within temporal graphs, and those that do often have two main limitations: (1) traditional community search methods become inefficient and experience significant increases in computation time when scaled to large graphs; (2) while GNN-based community search methods for temporal graphs offer generalizability, they often focus solely on community connectivity and lack cohesiveness. Therefore, we propose a new model PK-GCN, based on Graph Neural Networks (GNNs), to identify persistent k-core communities in temporal networks. This model can handle dynamic changes in temporal graphs and identify communities that persist over time. Compared to existing community search methods, our model not only finds communities with tighter structures but also allows for dynamic queries based on user input without needing retraining. Specifically, our model constructs features by integrating k-core information from core decomposition, graph features, and query features, resulting in more expressive node representations. Additionally, we designed a flexible dynamic query mechanism that allows users to input time information to query communities. Experiments on multiple datasets demonstrate that our model outperforms other GNN-based community search algorithms in F1-score.

关键词： Computational modeling Heuristic algorithms Organizations Big Data Benchmark testing Search problems Graph neural networks Data models Real-time systems

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Abnormal anti-oxidation behavior of hexagonal boron nitride grown on copper

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Nano Research 2022年第8期15卷 7577-7583页

作者： Li Wang Jiajie Qi Shuai Zhang Mingchao Ding Wei Wei Jinhuan Wang Zhihong Zhang Ruixi Qiao Zhibin Zhang Zehui Li Kehai Liu Ying Fu Hao Hong Can Liu Muhong Wu Wenlong Wang Jun He Yi Cui Qunyang Li Xuedong Bai Kaihui Liu State Key Laboratory for Mesoscopic Physics Frontiers Science Center for Nano-optoelectronicsSchool of PhysicsPeking UniversityBeijing 100871China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Engineering Mechanics State Key Laboratory of TribologyTsinghua UniversityBeijing 100084China Vacuum Interconnected Nanotech Workstation Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China School of Chemistry and Chemical Engineering Beijing Institute of TechnologyBeijing 100081China International Centre for Quantum Materials Collaborative Innovation Centre of Quantum MatterPeking UniversityBeijing 100871China Songshan Lake Materials Laboratory Institute of PhysicsChinese Academy of SciencesDongguan 523808China CAS Center for Excellence in Nanoscience CAS Key Laboratory of Nanosystem and Hierarchical FabricationNational Center for Nanoscience and TechnologyBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

Atomic-layered hexagonal boron nitride(hBN)is expected to be the best two-dimensional(2D)anti-oxidation layer on metals for its incomparable impermeability,insulativity,and stability,as well as the progressive bottom-up growth techniques to ensure fast coating on metal surface in large ***,its real anti-oxidation ability in practice is found to be unsatisfactory and nonuniform,and the main obstacle to achieving ideal anti-oxidation performance lies in unclear anti-oxidation behavior at special interface between 2D hBN and three-dimensional(3D)***,system of monolayer hBN grown on copper(Cu)foils with various lattice orientations was grown to investigate the anti-oxidation behavior of different interlayer *** using structural characterizations together with analysis of topography,we surprisingly found that stronger interlayer coupling led to worse anti-oxidation performance owing to fast diffusion of O2 through higher hBN corrugations generated at the commensurate hBN/Cu(111)*** view of this,we developed the approach of cyclic reannealing that can effectively flatten corrugations and steps,and therefore improve the anti-oxidation performance to a great *** work provides a more indepth understanding of anti-oxidation behavior of 2D materials grown on 3D metals,and a practical method to pave the way for its large-scale applications in future.

关键词： hexagonal boron nitride anti-oxidation of metals nanoscale corrugation cyclic reannealing method

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Long-range atmospheric transport and alpine condensation of short-chain chlorinated paraffins on the southeastern Tibetan Plateau

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Journal of Environmental sciences 2021年第1期33卷 275-280页

作者： Huijuan Li Duo Bu Yan Gao Nali Zhu Jing Wu Xiangfeng Chen Jianjie Fu Yawei Wang Aiqian Zhang Guibin Jiang Qilu University of Technology(Shandong Academy of Sciences) Shandong Analysis and Test CenterKey Laboratory for Applied Technology of Sophisticated Analytic InstrumentJinan 250014China state Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Department of Chemistry&Enuironmental Science Tibet UniversityLhasa 850000China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

Pristine alpine regions are ideal regions for investigating the long-range atmospheric transport and cold trapping effects of short chain chlorinated paraffins(SCCPs).The concentrations and alpine condensation of SCCPs were investigated in lichen samples collected from the southeastern Tibetan *** concentrations of SCCPs ranged from 3098 to 6999 ng/g lipid weight(lw)and appeared to have an increasing trend with *** congeners,C10 dominated among all the congener *** different environmental behavior for different congener groups was closely related to their octanol-air partition coefficient(Koa).C10 congeners showed an increasing trend with altitude,whereas C13 congeners were negatively correlated with *** bioconcentration factors(BCF)of SCCPs reached 8.71 in lichens,which were higher than other semivolatile organic compounds(SVOCs)such as organochlorine pesticides(OCPs),polybrominated diphenyl ethers(PBDEs),polychlorinated biphenyls(PCBs),and hexabromocyclododecane(HBCD).These results suggested that SCCPs were prone to accumulate in the lichen from the air and provided evidence for the role of lichens as a suitable atmospheric indicator in the Tibetan Plateau.

关键词： Short-chain chlorinated paraffins Long-range atmospheric transport Alpine condensation Lichen-air accumulation

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analysis of Aircraft Parking Stability Based on Atmosphere Boundary Theory 12

Analysis of Aircraft Parking Stability Based on Atmosphere B...

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2022 International Conference on Acoustics, Fluid Mechanics and Engineering, AFME 2022 and the 12th Green''s Function Seminar, GFS 2022

作者： Liu, J. Ge, J.L. Yang, H. Chen, W.S. Wu, J.H. Qu, Q.L. School of Transportation Science and Engineering Beihang University Beijing100191 China Airport Research Institute China Academy of Civil Aviation Science and Technology Beijing100028 China Key Laboratory of Fluid Mechanics of Ministry of Education Beihang University Beijing100191 China

Based on numerical simulation technology, the aerodynamic load research of civil aircraft parked on the ground is conducted. The CRM model parked on the ground is established by CFD software. Based on the atmospheric boundary layer theory, the seven incoming flow conditions for numerical calculation are designed. And the aerodynamic loads' change of the aircraft model is calculated when the -90° sideslip angle. The result shows that the mooring load on the nose landing gear mainly comes from the longitudinal load caused by the upwards pitching moment on the flat tail and the lateral load caused by the yaw moment;since the rolling moment coefficient is less than the pitching moment coefficient by two orders of magnitude, which hardly affects the mooring load. The study provides a reference for reducing the mooring load of civil aircraft under heavy wind conditions. © Published under licence by IOP Publishing Ltd.

关键词： Aerodynamic loads

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Textured Asymmetric Membrane Electrode Assemblies of Piezoelectric Phosphorene and Ti_(3)C_(2)T_(x)MXene Heterostructures for Enhanced Electrochemical Stability and Kinetics in LIBs

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Nano-Micro Letters 2024年第4期16卷 394-414页

作者： Yihui Li Juan Xie Ruofei Wang Shugang Min Zewen Xu Yangjian Ding Pengcheng Su Xingmin Zhang Liyu Wei Jing‑Feng Li Zhaoqiang Chu Jingyu Sun Cheng Huang Volta and DiPole Materials Labs College of EnergySoochow Institute for Energy and Materials InnovationS(SIEMIS)Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceKey Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical IndustrySoochow UniversitySuzhou 215006People’s Republic of China School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013People’s Republic of China College of Underwater Acoustic Engineering Harbin Engineering UniversityHarbin 150001People’s Republic of China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204People’s Republic of China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084People’s Republic of China High Density Materials Technology Center for Flexible Hybrid Electronics Suzhou Institute of Electronic Functional Materials TechnologySuzhou Industrial Technology Research InstituteSuzhou 215151People’s Republic of China Institute of Advanced Materials and Institute of Membrane Science and Technology Jiangsu National Synergistic Innovation Center for Advanced MaterialsSuzhou Laboratory and Nanjing Tech UniversityNanjing 211816People’s Republic of China

Black phosphorus with a superior theoretical capacity(2596 mAh g^(-1))and high conductivity is regarded as one of the powerful candidates for lithium-ion battery(LIB)anode materials,whereas the severe volume expansion and sluggish kinetics still impede its applications in *** contrast,the exfoliated two-dimensional phosphorene owns negligible volume variation,and its intrinsic piezoelectricity is considered to be beneficial to the Li-ion transfer kinetics,while its positive influence has not been discussed ***,a phosphorene/MXene heterostructure-textured nanopiezocomposite is proposed with even phosphorene distribution and enhanced piezo-electrochemical coupling as an applicable free-standing asymmetric membrane electrode beyond the skin effect for enhanced Li-ion *** experimental and simulation analysis reveals that the embedded phosphorene nanosheets not only provide abundant active sites for Li-ions,but also endow the nanocomposite with favorable piezoelectricity,thus promoting the Li-ion transfer kinetics by generating the piezoelectric field serving as an extra *** waltzing with the MXene framework,the optimized electrode exhibits enhanced kinetics and stability,achieving stable cycling performances for 1,000 cycles at 2 A g^(-1),and delivering a high reversible capacity of 524 m Ah g^(-1)at-20℃,indicating the positive influence of the structural merits of self-assembled nanopiezocomposites on promoting stability and kinetics.

关键词： Phosphorene Nanopiezocomposite Piezo-electrochemical coupling Membrane electrode assembly Lithium-ion storage

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