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The Effect of Key Nodes on theMalware Dynamics in the Industrial Control Network

computers, Materials & Continua 2024年第4期79卷 329-349页

作者： Qiang Fu JunWang Changfu Si Jiawei Liu College of Computer Science and Technology Shenyang University of Chemical TechnologyShenyang110142China College of Computer Science and Engineering Northeastern UniversityShenyang110169China

As industrialization and informatization becomemore deeply intertwined,industrial control networks have entered an era of *** connection between industrial control networks and the external internet is becoming increasingly close,which leads to frequent security *** paper proposes a model for the industrial control *** includes a malware containment strategy that integrates intrusion detection,quarantine,and ***,the role of keynodes in the spreadofmalware is studied,a comparisonexperiment is conducted to validate the impact of the containment *** addition,the dynamic behavior of the model is analyzed,the basic reproduction number is computed,and the disease-free and endemic equilibrium of the model is also obtained by the basic reproduction ***,through simulation experiments,the effectiveness of the containment strategy is validated,the influence of the relevant parameters is analyzed,and the containment strategy is *** otherwords,selective immunity to key nodes can effectively suppress the spread ofmalware andmaintain the stability of industrial control *** earlier the immunization of key nodes,the *** the time exceeds the threshold,immunizing key nodes is almost *** analysis provides a better way to contain the malware in the industrial control network.

关键词： Key nodes dynamic model industrial control network simulation

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Review of Research on Improved PID Control in Electro-hydraulic Servo System

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Recent Patents on Engineering 2024年第1期18卷 54-68页

作者： Li, Jianying Li, Weidong Liang, Heng Kong, Lingbing Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education Harbin University of Science and Technology Harbin China College of Mechanical and Power Engineering Harbin University of Science and Technology Harbin China

Background: Proportional-integral-differential (PID) controller is widely used in the engineering field because of its simple structure, high control accuracy, and easy operation. Different patented PID control technologies have their own advantages, disadvantages, and application scenarios. Objective: By analyzing and discussing the improved PID control techniques in the electro-hydraulic servo system, some valuable conclusions have been drawn to predict the future research and development of PID control techniques. Methods: The improved PID control techniques applied to electro-hydraulic servo systems are clas-sified into three categories: PID parameter tuning technology, PID parameter online adjustment strategy and compound control strategy combined with PID algorithm. Results: By comparing the principles and characteristics of the above techniques, the advantages, disadvantages and application scenarios of each are analyzed, and the further development of PID control technology is discussed. Conclusion: Based on the characteristics of electro-hydraulic servo systems, the further combination of the three types of technology can make up for the shortcomings of PID algorithms to form a control strategy with high control accuracy, high robustness, and fast response speed. © 2024, Bentham science Publishers. All rights reserved.

关键词： Two term control systems

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High Dynamic Range Imaging for Dynamic Scenes Based on Multi-Level Spike Camera

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IEEE Transactions on Circuits and Systems for Video technology 2025年第6期35卷 5394-5406页

作者： Zhu, Zhenkun Xiong, Ruiqin Zhao, Jing Zhao, Rui Fan, Xiaopeng Zhu, Shuyuan Huang, Tiejun Peking University School of Computer Science Beijing100871 China Harbin Institute of Technology Department of Computer Science and Technology Harbin150001 China University of Electronic Science and Technology of China School of Information and Communication Engineering Chengdu611731 China

Spike camera is a retina-inspired neuromorphic camera which can capture dynamic scenes of high-speed motion by firing a continuous stream of spikes at an extremely high temporal resolution. The limitation in the current design is that each spike only represents the arrival of a fixed amount of photons. It can not deal with strong light areas in which the amount of accumulated photons reaches the pre-specified threshold multiple times within a single readout interval. In this paper, we propose a new spike camera model of high-speed imaging for high dynamic range scenarios. In this scheme, each pixel accumulates the incoming photons persistently and generates a new type of spike stream in which each spike symbol may be associated with different levels, indicating the arrival of different amounts of photons since the last readout. This enables the camera to support dynamic scenes with wider dynamic range. To achieve this, we propose a two-level buffer mechanism, one for photon accumulation and one for spike-firing encoding. We use a register to hold the number of spike-firings which has not been read out yet. At each readout time, the major part in the counter is read out via a carefully designed exponential encoding and the counter is updated. Such encoding and readout strategy enables a very efficient expansion of the dynamic range using a small number of encoding bits. Furthermore, we propose an image reconstruction scheme for the proposed camera, utilizing both spike intervals and spike levels to recover the light intensity. We incorporate Mamba and propose a temporal-spatial selective scan mechanism to extract temporal-spatial correlation within spike streams. We employ a pyramid adaptive filtering and alignment module to achieve coarse-to-fine feature alignment. Experimental results show that the proposed scheme can achieve better imaging quality and outperform the existing spike camera in high dynamic range scenarios. © 1991-2012 IEEE.

关键词： Adaptive filtering

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Genome-wide DNA methylome analysis reveals a critical role of methylation-dysregulated lncRNAs in autophagy regulation in glioblastoma

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Genes & Diseases 2024年第5期11卷 51-54页

作者： Hongying Zhao Ying Liu Meiting Fei Lin Bo Lixia Wang Yaopeng Shu Peiqi Ben Li Wang College of Bioinformatics Science and Technology Harbin Medical UniversityHarbinHeilongjiang 150081China

Glioblastoma(GBM)is the most common primary malignant intracranial tumor with a very poor *** this study,we systematically analyzed the DNA methylation alterations of autophagy-related lncRNAs and their association with drug therapies in *** identified 9 DNA methylation-dysregulated lncRNA regulators of autophagy-related genes as autophagy-related lncRNAs.A dysregulated regulatory network consisting of 9 autophagy-related lncRNAs and 237 differentially expressed autophagy-related genes was *** of small molecule drug candidates that may affect DNA methylation dysregulated lncRNA activity,including 45 drug lncRNA pairs,involving 7 DNA methylation dysregulated lncRNAs and 43 ***,we identified a DNA methylation-dysregulated autophagy-related lncRNA MIR155HG as an independent prognostic indicator for GBM.

关键词： regulated alterations drugs

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Recent advances in MXene for terahertz applications

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Optoelectronics Letters 2024年第5期20卷 272-288页

作者： ZHANG Yongzhi JIANG Jiuxing YAO Yongtao HE Xunjun Key Laboratory of Engineering Dielectric and Applications(Ministry of Education) School of Electrical and Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080China College of Science Harbin University of Science and TechnologyHarbin 150080China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin University of Science and TechnologyHarbin 150080China

Since first synthesized in 2011, MXenes have attracted extensive attention in many scientific fields as a new two-dimensional(2D) material because of the unique physical and chemical properties. Over the past decade, in particular, MXenes have obtained numerous exciting achievements in the field of terahertz applications. In this review, we first briefly introduce the MXene materials, such as the basic structure and main fabrication processes of MXenes. Then, we summarize the recent applications of MXene materials in various terahertz research areas, including terahertz modulation, terahertz absorption, terahertz shielding, terahertz communication, terahertz detection and terahertz generation, in which the representative results are presented. Finally, we give an outlook on the future research directions of MXene materials and their potential applications.

关键词： terahertz directions absorption

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Starlet:Network defense resource allocation with multi-armed bandits for cloud-edge crowd sensing in IoT

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Digital Communications and Networks 2024年第3期10卷 586-596页

作者： Hui Xia Ning Huang Xuecai Feng Rui Zhang Chao Liu College of Computer Science and Technology Ocean University of ChinaQingdao266100China

The cloud platform has limited defense resources to fully protect the edge servers used to process crowd sensing data in Internet of *** guarantee the network's overall security,we present a network defense resource allocation with multi-armed bandits to maximize the network's overall ***,we propose the method for dynamic setting of node defense resource thresholds to obtain the defender(attacker)benefit function of edge servers(nodes)and ***,we design a defense resource sharing mechanism for neighboring nodes to obtain the defense capability of ***,we use the decomposability and Lipschitz conti-nuity of the defender's total expected utility to reduce the difference between the utility's discrete and continuous arms and analyze the difference ***,experimental results show that the method maximizes the defender's total expected utility and reduces the difference between the discrete and continuous arms of the utility.

关键词： Internet of things Defense resource sharing Multi-armed bandits Defense resource allocation

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Dietary supplementation with pterostilbene activates the PI3K‑AKT‑mTOR signalling pathway to alleviate progressive oxidative stress and promote placental nutrient transport

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Journal of Animal science and Biotechnology 2025年第1期16卷 388-407页

作者： Mingming Cao Liyun Bai Haoyun Wei Yantong Guo Guodong Sun Haoyang Sun Baoming Shi College of Animal Science and Technology Northeast Agricultural UniversityHarbin 150030PR China

Background Progressive oxidative stress easily occurs as a result of a gradual increase in the intensity of maternal metabolism due to rapid foetal development and increased intensity of ***,studies on the effects of processive oxidative stress on nutrient transport in the placenta have received little *** present study was conducted on sows at 85 days of gestation to study the effects of pterostilbene(PTE)on maternal oxidative stress status and placental nutrient *** PTE increased the antioxidant capacity and immunoglobulin content in mothers’blood and milk,reduced the level of inflammatory factors,and improved the nutrient content of *** also reduced sow backfat loss and the number of weak sons,and increased piglet weaning weight and total weaning litter *** subsequently found that PTE enhanced placental glucose and fatty acid transport and further affected glycolipid metabolism by increasing the expression of LAL,PYGM,and Gbe-1,which activated the PI3K phosphorylation ***,PTE addition altered the relative abundance of the Firmicutes,Proteobacteria,Parabacillus,and Bacteroidetes-like RF16 groups in sow *** increased the levels of acetate,propionate,butyrate and isovalerate in the *** These findings reveal that the addition of PTE during pregnancy and lactation mitigates the effects of processive oxidative stress on offspring development by altering maternal microbial and placental nutrient trans-port capacity.

关键词： Nutrient transporters Placenta Progressive oxidative stress Pterostilbene Sows

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A Survey of Reliability Issues Related to Approximate Circuits

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Journal of computer science & technology 2023年第2期38卷 273-288页

作者：王真徐荣臣陈嘉诚肖杰 College of Computer Science and Technology Shanghai University of Electric PowerShanghai 200090China College of Computer Science and Technology Zhejiang University of TechnologyHangzhou 310000China

As one of the most promising paradigms of integrated circuit design,the approximate circuit has aroused widespread concern in the scientific *** takes advantage of the inherent error tolerance of some applications and relaxes the accuracy for reductions in area and power *** paper aims to provide a comprehensive survey of reliability issues related to approximate circuits,which covers three concerns:error characteristic analysis,reliability and test,and reliable design involving approximate *** error characteristic analysis is used to compare the outputs of the approximate circuit with those of its precise counterpart,which can help to find the most appropriate approximate design for a specific application in the large design *** the approximate design getting close to physical realization,manufacturing defects and operational faults are inevitable;therefore,the reliability prediction and vulnerability test become increasingly ***,the research on approximate circuit reliability and test is insufficient and needs more ***,although there is some existing work combining the approximate design with fault tolerant techniques,the reliability-enhancement approaches for approximate circuits are lacking.

关键词： approximate circuit error metric fault tolerance test reliability

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Overhead-free Noise-tolerant Federated Learning: A New Baseline

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Machine Intelligence Research 2024年第3期21卷 526-537页

作者： Shiyi Lin Deming Zhai Feilong Zhang Junjun Jiang Xianming Liu Xiangyang Ji Department of Computer Science and Technology Harbin Institute of TechnologyHarbin150000China Department of Automation Tsinghua UniversityBeijing100084China

Federated learning (FL) is a promising decentralized machine learning approach that enables multiple distributed clients to train a model jointly while keeping their data private. However, in real-world scenarios, the supervised training data stored in local clients inevitably suffer from imperfect annotations, resulting in subjective, inconsistent and biased labels. These noisy labels can harm the collaborative aggregation process of FL by inducing inconsistent decision boundaries. Unfortunately, few attempts have been made towards noise-tolerant federated learning, with most of them relying on the strategy of transmitting overhead messages to assist noisy labels detection and correction, which increases the communication burden as well as privacy risks. In this paper, we propose a simple yet effective method for noise-tolerant FL based on the well-established co-training framework. Our method leverages the inherent discrepancy in the learning ability of the local and global models in FL, which can be regarded as two complementary views. By iteratively exchanging samples with their high confident predictions, the two models “teach each other” to suppress the influence of noisy labels. The proposed scheme enjoys the benefit of overhead cost-free and can serve as a robust and efficient baseline for noise-tolerant federated learning. Experimental results demonstrate that our method outperforms existing approaches, highlighting the superiority of our method.

关键词： Federated learning noise-label learning privacy-preserving machine learning edge intelligence distributed machine learning

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Effects of sex on fat deposition through gut microbiota and short-chain fatty acids in weaned pigs

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Animal Nutrition 2024年第2期17卷 100-109页

作者： Linfang Yao Bo Wang Yu Wang Jie Bai Yiming Gao Xintong Ru Chongpeng Bi Jianping Li Anshan Shan College of Animal Science and Technology Northeast Agricultural UniversityHarbin 150030China

Nitrogen pollution resulting from excessive feed consumption poses a significant challenge for modern swine *** nutrition technology seems to be an effective way to solve this problem;therefore,understanding the law of pig body composition deposition is a *** study investigated the sex effects on growth performance,body composition,nutrient deposition,gut micro-biota,and short-chain fatty acids(SCFA)in weaned *** weaned pigs were randomly allocated to 2 treatments according to the sex of *** individual pig was considered as a treatment *** body weights(BW 5,7,11,15,20,and 25 kg)were chosen as experimental points;for each point 10 piglets close to the average BW(5 males and 5 females)were slaughtered,and there was one growth phase between each 2 BW *** indicated that the males had higher average daily gain(ADG)and average daily feed intake(ADFI)compared to the females(P<0.05)at growth phases 15 to 20 kg BW and 20 to 25 kg ***,males at 20 kg BW had higher body fat content than females(P<0.10).Males showed a higher body fat(P<0.05)deposition rate at phase 15 to 20 kg BW(P<0.05)than *** pigs at 20 kg BW,the relative abundance of Ruminococcaceae UCG-005,Clostridium,Chris-tensenellaceae_R-7_group,and Peptostreptococcaceae was significantly increased in males(P<0.05)but that of Bifidobacterium was decreased(P<0.05).At 25 kg BW,the relative abundance of Ruminococca-ceae_NK4A214_group,Fibrobacter,Ruminococcaceae UCG-009,Ralstonia,Klebsiel,and Christensenella-ceae_R-7_group in males was higher when compared with females(P<0.05).In terms of SCFA,females exhibited higher concentrations of propionate compared to males(P<0.05).The results of the current study indicated that sex influenced fat deposition through changes in the composition of gut microbiota and the content of SCFA,which has significant implications for the realization of precision nutrition in modern swine production.

关键词： Sex Body composition Nutrient deposition Gut microbiota Short-chain fatty acid Weaned piglet

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