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ResNeSt-biGRU: An Intrusion Detection Model Based on Internet of Things

Computers, Materials & Continua 2024年第4期79卷 1005-1023页

作者： Yan Xiang Daofeng Li xinyi meng Chengfeng Dong Guanglin Qin School of Computer and Electronics Information Guangxi UniversityNanning530004China Guangxi Colleges and Universities Key Laboratory of Multimedia Communications and Information Processing Guangxi UniversityNanning530004China

The rapid expansion of Internet of Things (IoT) devices across various sectors is driven by steadily increasingdemands for interconnected and smart technologies. Nevertheless, the surge in the number of IoT device hascaught the attention of cyber hackers, as it provides them with expanded avenues to access valuable data. Thishas resulted in a myriad of security challenges, including information leakage, malware propagation, and financialloss, among others. Consequently, developing an intrusion detection system to identify both active and potentialintrusion traffic in IoT networks is of paramount importance. In this paper, we propose ResNeSt-biGRU, a practicalintrusion detection model that combines the strengths of ResNeSt, a variant of Residual Neural Network, andbidirectionalGated RecurrentUnitNetwork (biGRU).Our ResNeSt-biGRUframework diverges fromconventionalintrusion detection systems (IDS) by employing this dual-layeredmechanism that exploits the temporal continuityand spatial feature within network data streams, a methodological innovation that enhances detection *** conjunction with this, we introduce the PreIoT dataset, a compilation of prevalent IoT network behaviors, totrain and evaluate IDSmodels with a focus on identifying potential intrusion traffics. The effectiveness of proposedscheme is demonstrated through testing, wherein it achieved an average accuracy of 99.90% on theN-BaIoT datasetas well as on the PreIoT dataset and 94.45% on UNSW-NB15 dataset. The outcomes of this research reveal thepotential of ResNeSt-biGRU to bolster security measures, diminish intrusion-related vulnerabilities, and preservethe overall security of IoT ecosystems.

关键词： Internet of Things cyberattack intrusion detection internet security

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基于玉米醇溶蛋白(zein)-海藻酸钠构建木犀草素输送体系及果蔬保鲜研究

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食品安全导刊 2024年第13期 129-134页

作者：梁仕茹蒙馨怡黄心怡黄锦炜张烘煜马娟娟广州工商学院广东佛山528000

本研究以玉米醇溶蛋白和海藻酸钠为原料,通过反溶剂法制备了负载木犀草素的复合颗粒溶液,并评价其对圣女果的保鲜效果。结果表明,当木犀草素与zein比例为1∶50时,颗粒的得率为78.19%,对木犀草素的包埋率为73.87%。体外抗氧化活性结果表... 详细信息

本研究以玉米醇溶蛋白和海藻酸钠为原料,通过反溶剂法制备了负载木犀草素的复合颗粒溶液,并评价其对圣女果的保鲜效果。结果表明,当木犀草素与zein比例为1∶50时,颗粒的得率为78.19%,对木犀草素的包埋率为73.87%。体外抗氧化活性结果表明,与游离木犀草素相比,颗粒包埋可以提高木犀草素的抗氧化活性。对圣女果的保鲜效果结果表明,与游离木犀草素相比,包埋能够减少圣女果的水分含量损失,提高圣女果维生素C的含量,减缓圣女果硬度的损失,说明颗粒包埋有利于提高木犀草素的保鲜效果。本研究为果蔬保鲜提供了一条新途径,为生物活性的研究提供新的理论依据。

关键词：玉米醇溶蛋白-海藻酸钠纳米颗粒木犀草素抗氧化性活性果蔬保鲜

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Nacre-inspired MXene-based film for highly sensitive piezoresistive sensing over a broad sensing range

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Bio-Design and Manufacturing 2024年第4期7卷 463-475页

作者： Gaofeng Wang Lingxian meng xinyi Ji Xuying Liu Jiajie Liang Shuiren Liu School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin 300350China

As the main component of wearable electronic equipment,flexible pressure sensors have attracted wide attention due to their excellent sensitivity and their promise with respect to applications in health monitoring,electronic skin,and human-computer ***,it remains a significant challenge to achieve epidermal sensing over a wide sensing range,with short response/recovery time and featuring seamless conformability to the skin *** is critical since the capture of minute electrophysiological signals is important for health care *** this paper,we report the preparation of a nacre-like MXene/sodium carboxymethyl cellulose(CMC)nanocomposite film with a“brick-and-mortar”interior structure using a vacuum-induced self-assembly *** synergistic behavior of the MXene“brick”and flexible CMC“mortar”contributes to attenuating interlamellar self-stacking and creates numerous variable conductive pathways on the sensing *** resulted in a high sensitivity over a broad pressure range(i.e.,0.03-22.37 kPa:162.13 kPa^(-1);22.37-135.71 kPa:127.88 kPa^(-1);135.71-286.49 kPa:100.58 kPa^(-1)).This sensor also has a low detection limit(0.85 Pa),short response/recovery time(8.58 ms/34.34 ms),and good stability(2000 cycles).Furthermore,we deployed pressure sensors to distinguish among tiny particles,various physiological signals of the human body,space arrays,robot motion monitoring,and other related applications to demonstrate their feasibility for a variety of health and motion monitoring use cases.

关键词： Flexible pressure sensor MXene Bioinspired Physiological signals Interlayer spacing

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Notch信号通路——对健康和疾病的机械论观点

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Engineering 2024年第3期34卷 212-232页

作者： Yao meng Zhihan Bo xinyi Feng xinyi Yang Penny A.Handford Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China Department of Biochemistry University of OxfordOxford OX13QUUK State Key Laboratory of Respiratory Health and Multimorbidity Beijing 100050China

The Notch signaling pathway is evolutionarily conserved across metazoan species and plays key roles in many physiological *** Notch receptor is activated by two families of canonical ligands(Deltalike and Serrate/Jagged)where both ligands and receptors are single-pass transmembrane proteins usually with large extracellular domains,relative to their intracellular *** interaction of the core binding regions,presented on opposing cell surfaces,formation of the receptor/ligand complex initiates force-mediated proteolysis,ultimately releasing the transcriptionally-active Notch intracellular *** review focuses on structural features of the extracellular receptor/ligand complex,the role of posttranslational modifications in tuning this complex,the contribution of the cell membrane to ligand function,and insights from acquired and genetic diseases.

关键词： Notch signaling pathway Structural biology Glycosylation Genetic disorders Cancer Pharmacological agents

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智能茶炊机设计

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设计 2024年第1期37卷 F0002-F0002页

作者：沈瞳(文/图) 孟欣怡(文/图) 哈尔滨理工大学合肥工业大学

茶炊机主要针对适合煮制的半发酵、全发酵茶叶,从茶叶的制作工艺与机械化制茶中提取设计要素,令茶炊机的工作方式模拟人的手法,得到一杯蕴含情感、饱含温度、接近手工煮茶味道的茶水。产品采用柔边现代主义设计风格,造型汲取中国茶缶与... 详细信息

茶炊机主要针对适合煮制的半发酵、全发酵茶叶,从茶叶的制作工艺与机械化制茶中提取设计要素,令茶炊机的工作方式模拟人的手法,得到一杯蕴含情感、饱含温度、接近手工煮茶味道的茶水。产品采用柔边现代主义设计风格,造型汲取中国茶缶与茶釜的宽肩、窄颈、鼓腹特点,抽象出流畅顺滑的线条,自上部控制面板向左侧柔和的伸展形成过渡面,左右的功能区自上而下逐渐增大至中下段急收,形成鼓腹的形态,借此隐喻中国文化的中庸、豁达。色彩选用低饱和度的玄铁灰、罗勒绿、珍珠白作为三款主色。

关键词：鼓腹急收现代主义设计珍珠白控制面板设计要素制作工艺低饱和度

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Asymmetric time-varying integral barrier Lyapunov function based adaptive optimal control for nonlinear systems with dynamic state constraints

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Frontiers of Information Technology & Electronic Engineering 2024年第6期25卷 887-902页

作者： Yan WEI Mingshuang HAO xinyi YU Linlin OU College of Information Engineering Zhejiang University of TechnologyHangzhou 310023China

This paper investigates the issue of adaptive optimal tracking control for nonlinear systems with dynamic state *** asymmetric time-varying integral barrier Lyapunov function(ATIBLF)based integral reinforcement learning(IRL)control algorithm with an actor–critic structure is first *** ATIBLF items are appropriately arranged in every step of the optimized backstepping control design to ensure that the dynamic full-state constraints are never ***,optimal virtual/actual control in every backstepping subsystem is decomposed with ATIBLF items and also with an adaptive optimized ***,neural networks are used to approximate the gradient value *** to the Lyapunov stability theorem,the boundedness of all signals of the closed-loop system is proved,and the proposed control scheme ensures that the system states are within predefined compact ***,the effectiveness of the proposed control approach is validated by simulations.

关键词： State constraints Asymmetric time-varying integral barrier Lyapunov function(ATIBLF) Adaptive optimal control Nonlinear systems

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Enhancing Low-Frequency Microwave Absorption Through Structural Polarization Modulation of MXenes

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Nano-Micro Letters 2024年第10期16卷 435-452页

作者： Bo Shan Yang Wang xinyi Ji Yi Huang College of Light Industry Science and Engineering State Key Laboratory of Biobased Fiber Manufacturing TechnologyTianjin University of Science and TechnologyTianjin 300457People's Republic of China National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material ChemistryKey Laboratory of Functional Polymer MaterialsCollaborative Innovation Center of Chemical Science and Engineering(Tianjin)School of Materials Science and EngineeringNankai UniversityTianjin 300350People's Republic of China

Two-dimensional carbon-based materials have shown promising electromagnetic wave absorption capabilities in mid-and high-frequency ranges,but face challenges in low-frequency absorption due to limited control over polarization response mecha-nisms and ambiguous resonance *** this study,we pro-pose a novel approach to enhance absorption efficiency in aligned three-dimensional(3D)MXene/CNF(cellulose nanofibers)cavities by modifying polarization properties and manipulating resonance response in the 3D MXene *** controlled polarization mechanism results in a significant shift of the main absorption region from the X-band to the S-band,leading to a remarkable reflection loss value of-47.9 dB in the low-frequency ***,our findings revealed the importance of the oriented electromagnetic coupling in influencing electromagnetic response and microwave absorption *** present study inspired us to develop a generic strategy for low-frequency tuned absorption in the absence of magnetic element participation,while orientation-induced polarization and the derived magnetic resonance coupling are the key controlling factors of the method.

关键词： Hierarchical structure MXene Microwave absorption Low-frequency

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Fault-tolerant identity-based encryption from SM9

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Science China(Information Sciences) 2024年第2期67卷 104-117页

作者： Xiaohong LIU xinyi HUANG Zhaohui CHENG Wei WU Fujian Provincial Key Laboratory of Network Security and Cryptology College of Computer and Cyber SecurityFujian Normal University Artificial Intelligence Thrust Information HubThe Hong Kong University of Science and Technology (Guangzhou) Olym Information Security Technology Ltd. Center for Applied Mathematics of Fujian Province School of Mathematics and StatisticsFujian Normal University

This paper initiates the formal study of attribute-based encryption within the framework of SM9,the Chinese National Cryptography Standard for Identity-Based Cryptography, by presenting two new faulttolerant identity-based encryption(FIBE) schemes. Our first scheme uses the same private-key/ciphertext structure as the original SM9 algorithm and operates in a small attribute universe. As a result, it can be effectively and smoothly integrated into the information systems using SM9. In the random oracle model,we prove that our scheme is ciphertext-indistinguishable against fuzzy selective-identity and chosen-plaintext attacks under the(k + 3)-DBDHI assumption. Our second design is a large universe FIBE scheme based on SM9 that is ciphertext-indistinguishable against chosen-plaintext attacks in the random oracle model under the(f, g)-GDDHE assumption. Finally, we compare the communication and computing costs of our schemes to those of other classical ones. The comparison shows that our schemes have comparable performance as others. We believe that our findings will accelerate the applications of SM9 in modern information systems such as cloud computing and blockchain.

关键词： attribute-based encryption identity-based encryption fault-tolerant SM9

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Seasonal Variation of the Sea Surface Temperature Growth Rate of ENSO

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Advances in Atmospheric Sciences 2024年第3期41卷 465-477页

作者： xinyi XING Xianghui FANG Da PANG Chaopeng JI Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China Shanghai Frontiers Science Center of Atmosphere-Ocean Interaction Shanghai 200438China Shanghai Key Laboratory of Ocean-land-atmosphere Boundary Dynamics and Climate Change Fudan UniversityShanghai 200438China

El Ni?o–Southern Oscillation(ENSO) exhibits a distinctive phase-locking characteristic, first expressed during its onset in boreal spring, developing during summer and autumn, reaching its peak towards winter, and decaying over the next spring. Several studies have demonstrated that this feature arises as a result of seasonal variation in the growth rate of ENSO as expressed by the sea surface temperature(SST). The bias towards simulating the phase locking of ENSO by many state-of-the-art climate models is also attributed to the unrealistic depiction of the growth rate. In this study, the seasonal variation of SST growth rate in the Ni?o-3.4 region(5°S–5°N, 120°–170°W) is estimated in detail based on the mixed layer heat budget equation and recharge oscillator model during 1981–2020. It is suggested that the consideration of a variable mixed layer depth is essential to its diagnostic process. The estimated growth rate has a remarkable seasonal cycle with minimum rates occurring in spring and maximum rates evident in autumn. More specifically, the growth rate derived from the meridional advection(surface heat flux) is positive(negative) throughout the year. Vertical diffusion generally makes a negative contribution to the evolution of growth rate and the magnitude of vertical entrainment represents the smallest contributor. Analysis indicates that the zonal advective feedback is regulated by the meridional immigration of the intertropical convergence zone, which approaches its southernmost extent in February and progresses to its northernmost location in September, and dominates the seasonal variation of the SST growth rate.

关键词： SST growth rate intertropical convergence zone zonal advective feedback mixed layer depth ENSO seasonal variation

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Boosting bulk charge transport of CuWO_(4) photoanodes via Cs doping for solar water oxidation

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Chinese Journal of Structural Chemistry 2024年第2期43卷 31-37页

作者： xinyi Fan Xiaojia Yuan Kan Zhang School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing210094China

Copper tungstate(CuWO_(4))is a promising photoanode for photoelectrochemical(PEC)water splitting due to its appropriate energy band position and broad light absorption ***,the inherent unfilled 3d atomic orbital of Cu acts as a natural electron-hole recombination site,significantly constraining the PEC performance of CuWO_(4).Herein,Cs atoms with complete atomic orbitals are doped into CuWO_(4)in order to obtain better bulk charge separation *** a result,the photocurrent of Cs@CuWO_(4)increases from 0.57 to 0.99 mA cm^(-2)compared to CuWO_(4)at 1.23 V *** hydrogen electrode(RHE)under AM 1.5G illumination,as well as the bulk charge transfer efficiencies rising from 13.5%to 19.3%.In addition,density of states(DOS)calculations further prove that the introduction of Cs atoms effectively suppresses the contribution of Cu 3d orbitals at the Fermi *** work offers a valuable reference for the advancement of CuWO_(4)as the next-generation PEC photoanode material.

关键词： Photoanode Water splitting Photoelectrochemical Charge separation

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