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DIGNN-A:Real-Time Network Intrusion Detection with Integrated Neural Networks Based on Dynamic Graph

Computers, Materials & Continua 2025年第1期82卷 817-842页

作者： Jizhao Liu minghao guo College of Computer Zhongyuan University of TechnologyZhengzhou450007China

The increasing popularity of the Internet and the widespread use of information technology have led to a rise in the number and sophistication of network attacks and security *** detection systems are crucial to network security,playing a pivotal role in safeguarding networks from potential ***,in the context of an evolving landscape of sophisticated and elusive attacks,existing intrusion detection methodologies often overlook critical aspects such as changes in network topology over time and interactions between *** address these issues,this paper proposes a real-time network intrusion detection method based on graph neural *** proposedmethod leverages the advantages of graph neural networks and employs a straightforward graph construction method to represent network traffic as dynamic graph-structured ***,a graph convolution operation with a multi-head attention mechanism is utilized to enhance the model’s ability to capture the intricate relationships within the graph structure ***,it uses an integrated graph neural network to address dynamic graphs’structural and topological changes at different time points and the challenges of edge embedding in intrusion detection *** edge classification problem is effectively transformed into node classification by employing a line graph data representation,which facilitates fine-grained intrusion detection tasks on dynamic graph node feature *** efficacy of the proposed method is evaluated using two commonly used intrusion detection datasets,UNSW-NB15 and NF-ToN-IoT-v2,and results are compared with previous studies in this *** experimental results demonstrate that our proposed method achieves 99.3%and 99.96%accuracy on the two datasets,respectively,and outperforms the benchmark model in several evaluation metrics.

关键词： Intrusion detection graph neural networks attention mechanisms line graphs dynamic graph neural networks

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Storage dynamics of ions on graphene

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Interdisciplinary Materials 2024年第2期3卷 189-202页

作者： minghao guo Kun Ni Yanwu Zhu Key Laboratory of Precision and Intelligent Chemistry Department of Materials Science and EngineeringSchool of Chemistry and Materials ScienceHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefeiAnhuiChina

Carbon has been widely utilized as electrode in electrochemical energy storage,relying on the interaction between ions and *** performance of a carbon electrode is determined by a variety of factors including the structural features of carbon material and the behavior of ions adsorbed on the carbon surface in the specific *** the fundamental unit of graphitic carbons,graphene has been employed as a model to understand the energy storage mechanism of carbon materials through various experimental and computational methods,ex‐situ or in‐*** this article,we provide a succinct overview of the state‐of‐the‐art proceedings on the ion storage mechanism on *** include the structure engineering of carbons,electric gating effect of ions,ion dynamics on the interface or in the confined space,and specifically lithium‐ion storage/reaction on *** aim is to facilitate the understanding of electrochemistry on carbon electrodes.

关键词： graphene ion dynamics ion storage ionic gating nano-confinement

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Electrosynthesis of hydroxylamine from nitrate reduction in water

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Science China Chemistry 2023年第6期66卷 1758-1762页

作者： Xianen Lan Chuanqi Cheng Chengying guo minghao guo Tieliang Li Yongmeng Wu Yifu Yu Bin Zhang Institute of Molecular Plus Department of ChemistrySchool of ScienceTianjin UniversityTianjin 300072China Institute of New Energy Materials School of Materials Science and EngineeringTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Hydroxylamine(NH_(2)OH),a vital but unstable industrial feedstock,is presently prepared under harsh conditions that cause environmental and energy ***,we report an electrochemical method to prepare oximes,which serve as precursors for NH_(2)OH after facile *** carbon-supported amorphous Mn electrocatalyst delivers a current density of~100 mA cm^(-2) with a Faradaic efficiency of 40.92%and a yield rate of 0.251 mmol cm^(-2)h^(-1) for formaldoxime(CH_(2)NOH)generation by using nitrate and formaldehyde as *** can be easily released to produce NH_(2)OH via ***,this method exhibits an economic advantage over conventional manufacturing based on techno-economic analysis.A series of control experiments,in situ characterizations,and theoretical simulations unveil the reaction mechanism via the spontaneous reaction between an aldehyde and*NH_(2)OH intermediate derived from nitrate *** high activity of Mn originates from its inhibitory effects on the further reduction of key*NH_(2)OH *** strategy opens a sustainable and green way for NH_(2)OH synthesis under mild conditions using renewable energy.

关键词： electrosynthesis hydroxylamine nitrate reduction amorphous Mn reaction pathway

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In-situ selective surface engineering of graphene micro-supercapacitor chips

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Nano Research 2022年第2期15卷 1492-1499页

作者： Yiming Chen minghao guo Lin Xu Yuyang Cai Xiaocong Tian Xiaobin Liao Zhaoyang Wang Jiashen Meng Xufeng Hong Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200China Faculty of Materials Science&Chemistry China University of GeosciencesWuhan 430074China

Surface modification of graphene oxide(GO)is a powerful strategy to develop its energy density for electrochemical energy ***,pre-modified GO always exhibits unsatisfactory hydrophilia and its ink-relevant utilization is extremely *** GO ink is widely utilized in fabricating micro energy storage devices via extrusion-based 3D-printing,simultaneously obtaining satisfactory hydrophilia and high energy density still remains a *** this work,an in-situ surface engineering strategy was employed to enhance the performance of GO micro-supercapacitor *** dimensionally printed GO micro-supercapacitor chips were treated with pyrrole monomer to achieve selective and spontaneous anchoring of polypyrrole on the microelectrodes without affecting interspaces between the finger *** interface-reinforced graphene scaffolds were edge-welded and exhibited a considerably improved specific capacitance,from 13.6 to 128.4 mF·cm^(-2).These results are expected to provide a new method for improving the performance of micro-supercapacitors derived from GO inks and further strengthen the practicability of 3D printing techniques in fabricating energy storage devices.

关键词： 3D-printing in-situ modification selective surface engineering edge-welded graphene micro-supercapacitors

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基于Frenet坐标下改进人工势场法的无人车局部路径规划

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兵工学报 2024年第7期45卷 2097-2109页

作者：姬鹏郭明皓河北工程大学机械与装备工程学院河北邯郸056038

人工势场法由于运算量小、精度高,广泛应用于无人车的局部路径规划。针对传统人工势场法存在目标不可达、局部最小值及陷入U型障碍物的问题,提出一种基于Frenet坐标系下改进人工势场法的路径规划算法。构建Frenet坐标系来表述车辆避障运... 详细信息

人工势场法由于运算量小、精度高,广泛应用于无人车的局部路径规划。针对传统人工势场法存在目标不可达、局部最小值及陷入U型障碍物的问题,提出一种基于Frenet坐标系下改进人工势场法的路径规划算法。构建Frenet坐标系来表述车辆避障运动,简化规划模型,解决路径规划中车辆与所在道路相对位置不易表述的问题。提出安全椭圆模型和预测距离的概念来调整势场影响区域,加入基于Frenet坐标系下的参考线势场及动态速度势场改进斥力场函数,解决车辆在静态和动态下的避障问题。利用数学仿真软件进行仿真,以不同车速在直道和弯道场景中对所提出的路径规划方法进行静态和动态避障仿真实验。研究结果表明:不同车速下的前轮转角、横摆角速度均控制在较小范围内,改进算法可以有效解决传统人工势场法的缺陷,同时与快速搜索随机树(Rapidly-exploring Random Tree,RRT)算法相比,其在避障过程中路径规划计算效率提高了42.8%,改进算法优势明显。

关键词：无人车局部路径规划人工势场法 Frenet坐标系

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Scalable microfabrication of three-dimensional porous interconnected graphene scaffolds with carbon spheres for high-performance all carbon-based micro-supercapacitors

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Journal of Materiomics 2019年第2期5卷 303-312页

作者： Yiming Chen minghao guo Liang He Wei Yang Lin Xu Jiashen Meng Xiaocong Tian Xinyu Ma Qiang Yu Kaichun Yang Xufeng Hong Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Department of Materials Science and NanoEngineering Rice UniversityHoustonTX77005United States Faculty of Materials Science&Chemistry China University of GeosciencesWuhan430074China Department of Civil Engineering Rice UniversityHoustonTX77005United States

As one of the most important micro energy storage devices(MESDs),graphene-based micro-supercapacitors(G-MSCs)possess the advantages of excellent flexibility,long cycle life,affordability and high *** most cases,constructing three-dimensional(3D)graphene networks is widely utilized to promote the permeation of electrolyte and enhance the utilization of active *** this work,conventional freeze-drying process is utilized in the fabrication of G-MSCs to constitute 3D interconnected networks micro-electrodes,and further by regulating the composition of inks,carbon spheres(CSs)at different mass loadings are introduced into the graphene scaffolds to further increase the active sites of the *** fabricated all carbon-based MSC with the optimal mass loading of CSs(0.406 mg cm^(-2))exhibits a high specific areal capacitance of 17.01mF cm^(-2)at the scan rate of 10mV s^(-1)and a capacitance retention of 93.14%after 10000 cycles at the scan rate of 500 mV s^(-1).The proposed microfabrication process is facile and fully compatible with modern microtechnologies and will be highly suitable for large-scale production and integration.

关键词： Three-dimensional Injecting Freeze-drying Mass loading Supercapacitor

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出经入文:古史辨派与中国诗经学的现代转型

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中国文学批评 2024年第2期 37-48,189页

作者：郭明浩湘潭大学文学与新闻学院湘潭411105

古史辨派对传统诗经学进行了全面质疑,并直接推动了中国诗经学的现代转型。全面质疑并挑战传统学术话语的古史辨派试图祛除《诗经》的经学文本身份,消解其合法性与权威性,重新审查前代经说,尤其是在质疑孔子与六经关系的基础上,否定“... 详细信息

古史辨派对传统诗经学进行了全面质疑,并直接推动了中国诗经学的现代转型。全面质疑并挑战传统学术话语的古史辨派试图祛除《诗经》的经学文本身份,消解其合法性与权威性,重新审查前代经说,尤其是在质疑孔子与六经关系的基础上,否定“孔子删诗”说。古史辨派试图弃经入文,重构具有现代色彩的诗经学,集中体现为以现代文学观念再造《诗经》,特别是以秉持民间立场的“歌谣说”最具代表性。古史辨派出经入文,对形塑中国现代诗经学有重要学术意义,但以今日眼光视之,亦自有其不足之处。

关键词：古史辨派诗经学经学解构文学再造现代转型

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中山装到人民装的款式演变--以裁剪技术文献为样本(1912—1959年)

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丝绸 2023年第7期60卷 143-149页

作者：郭明昊张倩刘卫北京服装学院服装艺术与工程学院北京100029

中山装与人民装是近现代中国最具时代风范的服装,但是关于两者的款式界定、历史渊源在学术界还没有得到统一的认识,仍缺乏具体考证研究。本文梳理1912—1959年的裁剪技术文献,以中山装及人民装款式图示和文字描述为主要依据,结合同期历... 详细信息

中山装与人民装是近现代中国最具时代风范的服装,但是关于两者的款式界定、历史渊源在学术界还没有得到统一的认识,仍缺乏具体考证研究。本文梳理1912—1959年的裁剪技术文献,以中山装及人民装款式图示和文字描述为主要依据,结合同期历史文献,探析中山装与人民装的款式渊源。研究发现:民国中山装款式有三期样式,从制服化转向民用化;中华人民共和国成立初期中山装演变成为人民装,款式向大众化演变,并呈现“一板多款”,体现人民装的“人民性”的内涵。

关键词：中山装人民装列宁装学生装裁剪文献款式演变人民性

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新中国初期人民装形制考析

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艺术设计研究 2022年第2期 35-42页

作者：刘卫郭明昊北京服装学院

人民装是新中国初期我国群众最典型的服装,学界对于人民装还没有专题研究,其形制众说纷纭,人民装本土化创制的研究价值未得到充分挖掘。本文通过对1949年至1956年人民装相关历史、裁剪技术文献资料的梳理和图像比对研究,考析其源起、形... 详细信息

人民装是新中国初期我国群众最典型的服装,学界对于人民装还没有专题研究,其形制众说纷纭,人民装本土化创制的研究价值未得到充分挖掘。本文通过对1949年至1956年人民装相关历史、裁剪技术文献资料的梳理和图像比对研究,考析其源起、形制及内涵。

关键词：人民装新中国服装形制

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基于改进人工势场法的无人车路径规划与跟踪控制

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系统仿真学报 2024年第10期36卷 2423-2434页

作者：郭明皓姬鹏黄海威河北工程大学机械与装备工程学院河北邯郸056038 昆易电子科技(上海)有限公司上海201400

针对无人车在换道超车复杂场景下躲避动态障碍物的工况,提出一种基于改进人工势场法的路径规划算法和基于模型预测控制器的跟踪控制策略。引入安全椭圆理论及预测距离概念调整势场影响区域,通过加入速度势场改变势场函数,解决车辆躲避... 详细信息

针对无人车在换道超车复杂场景下躲避动态障碍物的工况,提出一种基于改进人工势场法的路径规划算法和基于模型预测控制器的跟踪控制策略。引入安全椭圆理论及预测距离概念调整势场影响区域,通过加入速度势场改变势场函数,解决车辆躲避动态障碍物的问题。以线性三自由度车辆动力学模型为基础,建立包含势场环境的模型预测控制器。通过CarSim/Simulink联合仿真验证算法的有效性。结果表明:该算法可有效解决传统势场法缺陷,提出的换道超车避障控制器对不同车速下的避障车辆跟踪效果良好,最大质心侧偏角均小于1°,前轮转角均在[-10°~10°]合理范围内,车辆能较好完成换道超车操作并且保持稳定性和安全性。

关键词：无人车改进人工势场法路径规划跟踪控制模型预测控制器

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