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SEFormer:A Lightweight CNN-Transformer Based on Separable Multiscale Depthwise Convolution and Efficient Self-Attention for Rotating Machinery Fault Diagnosis

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Computers, Materials & Continua 2025年第1期82卷 1417-1437页

作者： Hongxing wang Xilai ju Hua Zhu Huafeng Li State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and AstronauticsNanjing210016China School of Computer Science and Engineering Nanyang Technological UniversitySingapore639798Singapore

Traditional data-driven fault diagnosis methods depend on expert experience to manually extract effective fault features of signals,which has certain ***,deep learning techniques have gained prominence as a central focus of research in the field of fault diagnosis by strong fault feature extraction ability and end-to-end fault diagnosis ***,utilizing the respective advantages of convolution neural network(CNN)and Transformer in local and global feature extraction,research on cooperating the two have demonstrated promise in the field of fault ***,the cross-channel convolution mechanism in CNN and the self-attention calculations in Transformer contribute to excessive complexity in the cooperative *** complexity results in high computational costs and limited industrial *** tackle the above challenges,this paper proposes a lightweight CNN-Transformer named as SEFormer for rotating machinery fault ***,a separable multiscale depthwise convolution block is designed to extract and integrate multiscale feature information from different channel dimensions of vibration ***,an efficient self-attention block is developed to capture critical fine-grained features of the signal from a global ***,experimental results on the planetary gearbox dataset and themotor roller bearing dataset prove that the proposed framework can balance the advantages of robustness,generalization and lightweight compared to recent state-of-the-art fault diagnosis models based on CNN and *** study presents a feasible strategy for developing a lightweight rotating machinery fault diagnosis framework aimed at economical deployment.

关键词： CNN-Transformer separable multiscale depthwise convolution efficient self-attention fault diagnosis

MixerKT:A Knowledge Tracing Model Based on Pure MLP Architecture

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Computers, Materials & Continua 2025年第1期82卷 485-498页

作者： jun wang Mingjie wang Zijie Li Ken Chen Jiatian Mei shu Zhang Key Laboratory of Education Informatization for Nationalities Ministry of EducationYunnan Normal UniversityKunming650000China Yunnan Key Laboratory of Smart Education Yunnan Normal UniversityKunming650000China

In the field of intelligent education,the integration of artificial intelligence,especially deep learning technologies,has garnered significant *** tracing(KT)plays a pivotal role in this field by predicting students’future performance through the analysis of historical interaction data,thereby assisting educators in evaluating knowledgemastery and tailoring instructional *** knowledge tracingmethods,largely based on Recurrent Neural Networks(RNNs)and Transformer models,primarily focus on capturing long-term interaction patterns in sequential ***,these models may neglect crucial short-term dynamics and other relevant *** paper introduces a novel approach to knowledge tracing by leveraging a pure Multilayer Perceptron(MLP)*** proposeMixerKT,a knowledge tracing model based on theHyperMixer framework,which uniquely integrates global and localMixer feature *** architecture enables more effective extraction of both long-terminteraction trends and recent learning behaviors,addressing limitations in currentmodels thatmay overlook these key *** evaluations on twowidely-used datasets,ASSIS Tments2009 and Algebra2005,demonstrate that MixerKT consistently outperforms several state-of-the-art models,including DKT,SAKT,and Separated Self-Attentive Neural Knowledge Tracing(SAINT).Specifically,MixerKT achieves higher prediction accuracy,highlighting its effectiveness in capturing the nuances of learners’knowledge *** results indicate that our model provides a more comprehensive representation of student learning patterns,enhancing the ability to predict future performance with greater precision.

关键词： Knowledge tracing multilayer perceptron channel mixer sequence mixer

Allelopathic Potential in different polarity phases of Datura Stramonium L.

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Allelopathic Potential in different polarity phases of Datur...

Unraveling post-growth mechanisms of monolayer CsPbBr3 nanocubes:Laser-enhanced transformations and cathodoluminescence-electron microscopy correlations

中国第五届植物化感作用学术研讨会

作者： YOU Li-xin,wang shu-ju College of Applied Chemistry,Shenyang University of Chemical Technology,Shenyang 110142

In this paper,we examine the allelopathic potential in different polarity phases from aerial parts of Datura Stramonium,including essential oil,EtOAc phase and H2O *** result reveals that EtOAc phase is the most detrimental in three polarity phases,indicates that allelochemicals from aerial parts of *** mainly exist in the EtOAc *** essential oil and its aqueous saturated solution from *** show the least allelopathic *** also analyzed the chemical composition of the essential oil from *** by the *** main components of essential oil were sterols and their derivatives,and the major constituents were ***.-Ergosta-7,***.-ol (16.53%),3-Hydroxycholestan-5-yl,acetate (14.97%),and 26,26-Dimethyl-5,24(28)-***.-ol (10.39%).It is necessary to seperate and identify the allelochemicals from the EtOAc phase in the future.

关键词： Datura Stramonium L. allelopathy allelochemical essential oil chemical composition

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Journal of Energy Chemistry 2025年第1期100卷 146-156页

作者： Mingxing Li Xiaoge wang Xiaofan Cao Zhiqun He Chunjun Liang Mingxing Chen Jing ju Fangtian You Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Optoelectronic Technology Beijing Jiaotong University Beijing National Laboratory for Molecular Sciences (BNLMS) College of Chemistry and Molecular Engineering Peking University

Lead-halide perovskite nanoparticles（LHP NPs） are highly promising materials for next-generation displays and solid-state lighting due to their exceptional optical properties. However, their inherent instability presents a significant challenge. Recent advances have demonstrated that optoelectronic devices based on monolayer nanoparticle films exhibit both high luminescence efficiency and long-term *** research demonstrates that mobility limitations and anisotropic alignments in CsPbBr3nanocube monolayer films are key to their stabilization, hindering spontaneous growth through face-to-face fusion and resulting in the formation of connecting necks in a diagonal direction. Introducing laser irradiation confirmed this by significantly accelerating nanocubes growth, increasing mobility, and enhancing local structural ordering, leading to larger and more regularly shaped nanosheets. Fourier transform infrared spectroscopy and energy dispersive spectroscopy line-scan analyses indicated that laser irradiation did not disrupt the ligand structure. Transmission electron microscopy and correlative cathodoluminescence electron microscopy revealed the effects of post-growth and heterogeneous structures, including enhanced luminescence and inhomogeneous intensity in the nanosheets. These findings deepen the understanding of the post-growth mechanism of monolayer nanoparticles and the structure-emission correlation and highlight the unique role of laser irradiation in directing the formation of well-defined and regular nanostructures.

关键词： Energy dispersive spectroscopy

A Mn-porphyrinic metal–organic framework immobilizing glucose oxidase for combined photodynamic/chemodynamic/starvation therapy

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Tungsten 2025年第1期7卷 183-194页

作者： Xin-Ran Sun Hao-Ming Yuan Guo-Da Zhang Chao wang shu-juan Sun Peng-Fei Shi Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers School of Chemistry and Chemical Engineering Linyi University

The combination of photodynamic therapy（PDT） and chemodynamic therapy（CDT） in tumor treatment has attracted considerable ***,tumor hypoxia and glutathione（GSH） overproduction in the tumor tissue restricted the progress of their ***,a Mn-porphyrinic metal-organic framework（Mn-TCPP） was constructed by the one-pot method and further used for immobilizing glucose oxidase（GOx） to obtain GOx@*** would rapidly exhaust endogenous glucose into hydrogen peroxide（H2O2） and gluconic acid,thus shutting off the energy supply of tumor cells for starvation ***-TCPP catalyzed H2O2to produce oxygen,regulating the hypoxic tumor microenvironment and in turn improving1O2generation under laser ***,Mn-TCPP can reduce reactive oxygen species consumption owing to the redox reaction between Mn3+and GSH,thus greatly enhancing ***,benefiting from GOx-mediated starvation therapy,Mn2+produced by Mn3+reduction can react with sufficient intracellular H2O2to generate ·OH with high cytotoxicity through a Fenton-like *** treatment by GOx@Mn-TCPP under laser irradiation in vitro,the cell viability of 4T1 and A549 tumor cells reached to 20%,reflecting GOx@Mn-TCPP could give full play to the advantages of PDT/CDT/starvation *** results in vivo demonstrated that GOx@Mn-TCPP mediated synergistic cascade therapy could significantly inhibit tumor growth and improve the therapeutic effect.

关键词： Chemodynamic therapy Immobilizing enzyme Metal–organic frameworks Photodynamic therapy Starvation therapy

黄骅市2002～2003年慢性非传染性疾病监测资料分析

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疾病监测 2005年第12期20卷 655-656页

作者：王树举河北省黄骅市疾病预防控制中心河北黄骅061100

目的掌握黄骅市城乡居民的疾病构成,制定切实可行的干预措施,提高人群生存质量。方法统计并分析黄骅市2002～2003年慢性非传染性疾病监测资料。结果2112例病例,主要集中在35～70岁,在所有发病病例中,男女发病排首位的均为高血压,居前六... 详细信息

目的掌握黄骅市城乡居民的疾病构成,制定切实可行的干预措施,提高人群生存质量。方法统计并分析黄骅市2002～2003年慢性非传染性疾病监测资料。结果2112例病例,主要集中在35～70岁,在所有发病病例中,男女发病排首位的均为高血压,居前六位的分别是:高血压821例,占发病总数的38.87%;Ⅱ型糖尿病214例,占发病总数的10.13%;脑栓塞213例,占发病总数的10.09%;心绞痛160例,占发病总数的7.58%;脑血栓121例,占发病总数的5.73%;恶性肿瘤110例,占发病总数的5.21%。结论改变不良生活方式、合理调整膳食结构对提高人群生存质量有重要作用。

关键词：慢性非传染性疾病监测资料分析

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微波介电谱应用于低碳醇化合物的分析

光谱学与光谱分析 2005年第12期25卷 2092-2096页

作者：吴守国朱琼芬王居恕王海天郑庆和安毅亭中国科学技术大学化学系安徽合肥230026 合肥达佳电子技术研究所微波室安徽合肥230061 中国科学技术大学精密机械系安徽合肥230026

研究了甲醇、乙醇等低碳醇类化合物在微波传输过程中对传输散射参数(又称S参数)的影响,利用微波透射法测定了S参数,根据其变化探讨了微波介电谱应用于低碳醇化合物分析的可能性,建立了一种基于散射参数的微波介电化学分析法。实验数... 详细信息

研究了甲醇、乙醇等低碳醇类化合物在微波传输过程中对传输散射参数(又称S参数)的影响,利用微波透射法测定了S参数,根据其变化探讨了微波介电谱应用于低碳醇化合物分析的可能性,建立了一种基于散射参数的微波介电化学分析法。实验数据表明,微波的S参数与甲醇、乙醇等低碳醇化合物的浓度在一定范围内呈现良好的线性关系。

关键词：微波 S参数低碳醇化学分析

3-(2,4-二羧基苯基)-2,6-二羧基吡啶原位脱羧构筑两个配位聚合物的结构及磁性

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无机化学学报 2015年第2期31卷 323-328页

作者：由立新王淑菊熊刚丁茯孙亚光沈阳化工大学应用化学学院沈阳110142

通过水热法合成了2个配位聚合物:[Cu(H2dpcp)2]n(1)和[Mn2(Hdpcp)2(H2O)2·2H2O]n(2)[H3dpcp=5-(2,4-二羧基苯基)-2-羧基吡啶],H3dpcp由3-(2,4-二羧基苯基)-2,6-二羧基吡啶(H4dpdp)原位脱羧生成。X-射线单晶衍射测得2个化合物都属于单斜晶系,化合物1结晶在P21/c空间群,a=0.639(13)nm,b=1.835(4)nm,c=1.115(2)nm,β=102.29(3)°,Z=2;化合物2结晶在C2/c空间群,a=3.126(6)nm,b=1.004(2)nm,c=1.080(2)nm,β=93.73(3)°,Z=4。化合物1以配体H2dpcp-桥连Cu( Ⅱ)形成一维链状结构。化合物2通过Hdpcp2-桥连Mn( Ⅱ)形成二维层状结构,并进一步通过氢键作用形成三维超分子结构。负的Weiss常数θ表明化合物2存在反铁磁耦合作用。

关键词：配位聚合物原位脱羧 3-(2,4-二羧基苯基)-2,6-二羧基吡啶磁性

电针对帕金森病大鼠中脑黑质26S蛋白酶体及核转录因子κB的影响

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针刺研究 2015年第4期40卷 259-264页

作者：凃乾梁艳马骏王述菊沈峰王彦春湖北中医药大学针灸骨伤学院武汉430065 江汉大学医学院武汉430056

目的:探讨26S蛋白酶体、核转录因子κB(NFκB)在电针对鱼藤酮致帕金森病(Parkinson’s disease,PD)模型大鼠保护机制中的作用。方法:将48只健康雄性SD大鼠随机分为正常组、假手术组、模型组、电针组,每组12只。模型组和电针组采用颈背... 详细信息

目的:探讨26S蛋白酶体、核转录因子κB(NFκB)在电针对鱼藤酮致帕金森病(Parkinson’s disease,PD)模型大鼠保护机制中的作用。方法:将48只健康雄性SD大鼠随机分为正常组、假手术组、模型组、电针组,每组12只。模型组和电针组采用颈背部皮下注射鱼藤酮法造模40d。造模成功后电针组取"风府""太冲"行电针治疗(连续波,2Hz,1mA,20min/次,1次/d,连续28d)。观察各组大鼠行为学改变并评分,应用免疫组化法观察大鼠中脑黑质酪氨酸羟化酶(tyrosine hydroxylase,TH)的表达,免疫蛋白印迹法检测黑质TH、26S蛋白酶体、NFκB表达。结果:与正常组及假手术组比较,模型组大鼠出现明显的行为学改变,电针组行为学评分较模型组显著降低(P<0.05);与正常组及假手术组比较,模型组大鼠中脑黑质TH阳性神经元细胞计数、含量明显降低,电针组TH阳性细胞数、含量较模型组明显升高(均P<0.05);26S蛋白酶体在模型组表达较正常组及假手术组明显下降,电针组与模型组比较明显升高(均P<0.05);NFκB在模型组表达较正常组及假手术组明显增高,电针组与模型组比较明显降低(均P<0.05)。结论:电针显著改善鱼藤酮所致PD模型大鼠的行为学表现和评分,显著改善鱼藤酮所致黑质多巴胺能神经元丢失,从而发挥防治PD作用,其可能机制与增强蛋白酶体系统的功能有关,与其降低NFκB表达有关。

关键词：帕金森病酪氨酸羟化酶蛋白酶体核转录因子κB 针刺疗法