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4th International Conference on Intelligent Computing and Human-Computer Interaction, ICHCI 2023

作者： Zhang, Xuanming Huang, ruiyang Jin, Lixiao Wan, Fangjie School of Cyber Science and Engineering Zhengzhou University Zhengzhou China National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

ISBN: (纸本)9798350343113

In the past decade, Fake Base Stations (FBS) have been consistently employed by criminals to target mobile users through spam text messages. despite the introduction of several techniques to mitigate this problem, spam messages remain a persistent and challenging issue in some countries, such as China, resulting in billions of dollars in annual economic losses. Therefore, this paper proposes an algorithm named BErT-GCN that combines large-scale pre-training models with Graph Convolutional Networks (GCN) for multi-class detection of fraudulent base station telecommunications scams in Chinese text messages. First, BErT (Bidirectional Encoder representation from Transformers) is used to encode the corpus and generate word embeddings. Subsequently, the generated word embeddings are fed into GCN for training. Finally, a Softmax layer is employed to perform multi-class detection on fraudulent base station telecommunications scams in Chinese text messages. Experimental results demonstrate that the proposed model achieves favorable performance on the FBS-SMS-dataset and exhibits outstanding performance in the domain of multi-class detection. © 2023 IEEE.

关键词： Base stations

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downlink MMSE Beamforming for dynamic Metasurface Antennas 3

Downlink MMSE Beamforming for Dynamic Metasurface Antennas

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3rd International Conference on Electronic Information engineering and Computer Science, EIECS 2023

作者： Han, Zhiqiang Guo, Shuming Wang, Shifei Zhengzhou University School of Cyber Science and Engineering Zhengzhou China National Digital Switching System Engineering & Technological R&d Center Zhengzhou China

ISBN: (纸本)9798350316674

dynamic metasurface antenna (dMA) array is a new type of array structure with low complexity and low cost, which is emerging as a promising technique for next-generation wireless networks. In this paper, a downlink multi-user MISO system based on dMA arrays is investigated, and the mean square error (MSE) is chosen as a performance metric to characterize the transmission reliability. The beamforming performance of dMA arrays is investigated using the minimum mean square error (MMSE) criterion. For the multiuser scenario, the optimization problem minimizes MSE by jointly optimizing the transmit precoder and dMA weights while satisfying the transmit power constraint. Our numerical results show that the proposed MMSE scheme converges fast and performs close to full digital beamforming. © 2023 IEEE.

关键词： Beamforming component dMA manifold optimization (MO) MMSE

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Malicious Website detection Method Based on BGresNet Multi-feature Fusion 5

Malicious Website Detection Method Based on BGResNet Multi-f...

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5th IEEE Eurasia Conference on IOT, Communication and engineering, ECICE 2023

作者： Jin, Lixiao Huang, ruiyang Zhang, Xuanming Zhengzhou University School of Cyber Science and Engineering Zhengzhou China National Digital Switching System Engineering & Technological R&d Center Zhengzhou China

ISBN: (纸本)9798350314694

Website security detection is important for Internet security. Existing machine learning-based malicious UrL detection methods have a low accuracy and weak generalization ability. Thus, we proposed a new multi-feature fusion malicious website detection model BGresNet by integrating the advantages of Bidirectional Encoder representations from Transformers (BErT), Graph Convolutional Network (GCN), and residual neural network (resNet). The method integrates three features: Uniform resource Locator (UrL) creator, rule features, and website titles. First, we used BGresNet to process UrL characters and website titles separately, transforming them into vector representations. Then, these two vectors were fused with UrL rule vectors. Finally, we employed the softmax function to realize the detection of malicious websites. The experimental results showed that the proposed model exhibited significant superiority in detecting malicious websites, providing a new and effective method for malicious UrL detection in Internet security. © 2023 IEEE.

关键词： BErT features GCN resNet website security

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Basic Study on Evaluation Method for Fatigue Crack Initiation and Propagation in Carburized Steel for Large rolling Bearings Considering residual Stress in Three directions

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Zairyo/Journal of the Society of Materials Science, Japan 2024年第10期73卷 793-800页

作者： Tsutsumi, Masako Watanuki, daisuke Miyamoto, Yuji Ma, Ninshu Core Technology R&D Center NSK Ltd. Fujisawa251-8501 Japan Graduate School of Engineering Osaka University Suita565-0871 Japan Joining and Welding Research Institute Osaka University Ibaraki567-0047 Japan

To correctly evaluate the safety of mechanical components, considering manufacturing induced residual stresses is essential. In this study, the risk analysis of fatigue crack initiation and propagation in cylindrical rollers for large size carburized bearings subjected to the rolling contact stress in services was conducted with consideration of the heat treatment stresses. Firstly, the residual stresses were reproduced by inherent strains measured using extended contour method, which combined the conventional contour method and surface stress measurement methods such as the X-ray diffraction method. The total stress in bearings during services is the summation of residual stress and contact stress. The location of fatigue crack initiation was examined using the dang Van criterion. As a source of stress concentration, cavities were assumed as a harmful type of defects like inclusions with poor adhesion to the base microstructure. The direction of crack initiation around the defect was also examined using the dang van criterion. The stress intensity factor (SIF) around the vacancy was calculated considering both residual stress and contact stress with a hypothetical initial crack. The SIF for a three-dimensional crack was modified by applying the shape factor. The effect of residual stress, the vacancy diameter and the shape of the defect on the crack propagation were discussed and compared with the threshold effective stress intensity factor of the standard bearing steel. A step-by-step approach was proposed to evaluate the risk of crack initiation and propagation by considering the residual stress distribution. © 2024 The Society of Materials Science, Japan.

关键词： Crack initiation

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Application and prospects of proteomic technology in inflammation:a review

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Food Science and Human Wellness 2024年第5期13卷 2373-2385页

作者： Senye Wang Yanhai Chu Jiajia Yuan Yiqi Li Zhenhua Liu Xiaoyu Chen Wenyi Kang National R&D Center for Edible Fungus Processing Technology Henan UniversityKaifeng 475004China Functional Food Engineering Technology Research Center Kaifeng 475004China Joint International Research Laboratory of Food&Medicine Resource Function Kaifeng 475004China College of Agriculture Henan UniversityKaifeng 475004China

Proteomics is a new technology that has been widely applied in the field of life and health *** effectively addresses issues related to the impact of dietary structure on organs,tissues,and cells,as well as the changes in proteins in various organs,tissues,and cells under disease *** differential proteins identified through proteomics can serve as disease biomarkers and target proteins affecting health and can be used for disease diagnosis and health *** this paper,the application of proteomics in the field of infl ammation in recent years was summarized,especially in the therapeutic target and mechanism of action,which opens up a new way for more effective prevention,diagnosis,and treatment of inflammation,and provides medical protection for human life and health.

关键词： Proteomics technology Inflammation Biomarkers Potential target Signaling pathway

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Effects of 3d deformation and nonlinear stress–strain relationship on the Brazilian test for a transversely isotropic rock

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Journal of rock Mechanics and Geotechnical engineering 2023年第12期15卷 3221-3229页

作者： Juhyi Yim Yoonsung Lee Seungki Hong Ki-Bok Min R&D Center Hyundai Engineering and Construction75Yulgok-roJongno-guSeoulRepublic of Korea Department of Energy Systems Engineering and Research Institute of Energy and Resources Seoul National University1Gwanak-roGwanak-guSeoul08826Republic of Korea

To improve the accuracy of indirect tensile strength for a transversely isotropic rock in the Brazilian test, this study considered the three-dimensional (3d) deformation and the nonlinear stress–strain relationship. A parametric study of a numerical Brazilian test was performed for a general range of elastic constants, revealing that the 3d modeling evaluated the indirect tensile strength up to 40% higher than the plane stress modeling. For the actual Asan gneiss, the 3d model evaluated the indirect tensile strength up to 10% higher and slightly enhanced the accuracy of deformation estimation compared with the plane stress model. The nonlinearity in stress–strain curve of Asan gneiss under uniaxial compression was then considered, such that the evaluated indirect tensile strength was affected by up to 10% and its anisotropy agreed well with the physical intuition. The estimation of deformation was significantly enhanced. The further validation on the nonlinear model is expected as future research.

关键词： Anisotropy Transversely isotropy Brazilian test Indirect tensile strength Nonlinearity 3d modeling

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Optimization design and Exploration of Locomotion Posture for Serpentine Pipeline robots 3

Optimization Design and Exploration of Locomotion Posture fo...

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3rd International Conference on Intelligent Computing and Next Generation Networks, ICNGN 2024

作者： Li, Zhichao Zhang, Chunguang Liu, Jiarui Li, Shangqing Chu, Shuai Gong, Yingjiao Geng, Wei R&D center SINOMACH Sensing Technology Co. Ltd. National Engineering Research Center Of Transducer Shenyang China SINOMACH Sensing Technology Co. Ltd. National Engineering Research Center Of Transducer Shenyang China

ISBN: (纸本)9798331529222

during the inspection process of seamless steel tubes, the circumferential dynamic deviation of the multi-hub serpentine robot complicates the accurate estimation and control of its axial operating state. To address this challenge, this paper introduces an innovative control method integrating an improved discrete PId with IMU feedback, and thoroughly examines its fundamental principles, modeling strategies, and simulation analyses. This system boasts low overshoot, high steady-state accuracy, and swift response, all while minimizing the occupation of system resources, which is advantageous for realizing time-sharing control by the superordinate system. Additionally, the system is capable of dynamically adjusting the hub motors with minimal control cycles, effectively preventing motor vibrations and severe overheating issues. ©2024 IEEE.

关键词： Three term control systems

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Enhancement of simulation and design for ideal overlay with target asymmetry using COMSOL Multiphysics 17

Enhancement of simulation and design for ideal overlay with ...

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Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVII 2024

作者： Lee, doogyu Baac, Hyoung Won Department of Semiconductor and Display Engineering Sungkyunkwan University Korea Republic of Semiconductor R&D center Samsung Electronics Korea Republic of Department of Electrical and Computer Engineering Sungkyunkwan University Korea Republic of

ISBN: (纸本)9781510670563

Overlay in upper layer with respect to lower layer need to be measured and controlled with sub-nanometer-level accuracy in semiconductor manufacturing process. However, as the metrology to device (MTd) deviation continues to increase, there is a growing need to maintain and improve MTd variation. In this study, we propose a methodology utilizing COMSOL Multiphysics to directly track process changes and quantify their impact. It can realize actual measurement equipment setting and modify optical property. We will introduce device matching methods that can improve MTd on product wafers through optical simulations. © 2024 SPIE.

关键词： Semiconductor device manufacture

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Modified electronic structure and enhanced hydroxyl adsorption make quaternary Pt-based nanosheets efficient anode electrocatalysts for formic acid-/alcohol-air fuel cells

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Journal of Energy Chemistry 2024年第5期92卷 142-150页

作者： Fengling Zhao Qiang Yuan Siyang Nie Liang Wu Xun Wang State-Local Joint Laboratory for Comprehensive Utilization of Biomass Center for R&D of Fine ChemicalsCollege of Chemistry and Chemical EngineeringGuizhou UniversityGuiyang 550025GuizhouChina Key Lab of Organic Optoelectronics&Molecular Engineering Tsinghua UniversityBeijing 100084China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Surface/interface engineering of a multimetallic nanostructure with diverse electrocatalytic properties for direct liquid fuel cells is desirable yet ***,using visible light,a class of quaternary Pt_(1)Ag_(0.1)Bi_(0.16)Te_(0.29)ultrathin nanosheets is fabricated and used as high-performance anode electrocatalysts for formic acid-/alcohol-air fuel *** modified electronic structure of Pt,enhanced hydroxyl adsorption,and abundant exterior defects afford Pt_(1)Ag_(0.1)Bi_(0.16)Te_(0.29)/C high intrinsic anodic electrocatalytic activity to boost the power densities of direct formic acid-/methanol-/ethanol-/ethylene glycol-/glycerol-air fuel cells,and the corresponding peak power density of Pt_(1)Ag_(0.1)Bi_(0.16)Te_(0.29)/C is respectively 129.7,142.3,105.4,124.3,and 128.0 mW cm^(-2),considerably outperforming Pt/*** in situ Fourier transform infrared reflection spectroscopy reveals that formic acid oxidation on Pt_(1)Ag_(0.1)Bi_(0.16)Te_(0.29)/C occurs via a CO_(2)-free direct *** functional theory calculations show that the presence of Ag,Bi,and Te in Pt_(1)Ag_(0.1)Bi_(0.16)Te_(0.29)suppresses CO^(*)formation while optimizing dehydrogenation steps and synergistic effect and modified Pt effectively enhance H_(2)O dissociation to improve electrocatalytic *** synthesis strategy can be extended to 43 other types of ultrathin multimetallic nanosheets(from ternary to octonary nanosheets),and efficiently capture precious metals(i.e.,Pd,Pt,rh,ru,Au,and Ag)from different water sources.

关键词： Pt-based nanosheets Modifiedelectronic structure Enhanced hydroxyl adsorption Formicacidand alcohol oxidation direct liquid fuel cells

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Multi-Modal Named Entity recognition with Auxiliary Visual Knowledge and Word-Level Fusion

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Computers, Materials and Continua 2025年第3期83卷 5747-5760页

作者： Huansha Wang ruiyang Huang Qinrang Liu Xinghao Wang National Digital Switching System Engineering & Technological R&D Center Information Engineering University Zhengzhou 450001 China

Multi-modal Named Entity recognition (MNEr) aims to better identify meaningful textual entities by integrating information from images. Previous work has focused on extracting visual semantics at a fine-grained level, or obtaining entity related external knowledge from knowledge bases or Large Language Models (LLMs). However, these approaches ignore the poor semantic correlation between visual and textual modalities in MNEr datasets and do not explore different multi-modal fusion approaches. In this paper, we present MMAVK, a multi-modal named entity recognition model with auxiliary visual knowledge and word-level fusion, which aims to leverage the Multi-modal Large Language Model (MLLM) as an implicit knowledge base. It also extracts vision-based auxiliary knowledge from the image for more accurate and effective recognition. Specifically, we propose vision-based auxiliary knowledge generation, which guides the MLLM to extract external knowledge exclusively derived from images to aid entity recognition by designing target-specific prompts, thus avoiding redundant recognition and cognitive confusion caused by the simultaneous processing of image-text pairs. Furthermore, we employ a word-level multi-modal fusion mechanism to fuse the extracted external knowledge with each word-embedding embedded from the transformer-based encoder. Extensive experimental results demonstrate that MMAVK outperforms or equals the state-of-the-art methods on the two classical MNEr datasets, even when the large models employed have significantly fewer parameters than other baselines.

关键词： Multi-modal named entity recognition large language model multi-modal fusion

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