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Journal of Central South University 2021年第1期28卷 284-296页

作者： cui peng-lu LIU Zhong-yu ZHANG Jia-chao FAN Zhi-cheng School of Civil Engineering Zhengzhou UniversityZhengzhou 450001China

To further investigate the one-dimensional(1D)rheological consolidation mechanism of double-layered soil,the fractional derivative Merchant model(FDMM)and the non-Darcian flow model with the non-Newtonian index are respectively introduced to describe the deformation of viscoelastic soil and the flow of pore water in the process of ***,an 1D rheological consolidation equation of double-layered soil is obtained,and its numerical analysis is performed by the implicit finite difference *** order to verify its validity,the numerical solutions by the present method for some simplified cases are compared with the results in the related ***,the influence of the revelent parameters on the rheological consolidation of double-layered soil are *** results indicate that the parameters of non-Darcian flow and FDMM of the first soil layer greatly influence the consolidation rate of double-layered *** the decrease of relative compressibility or the increase of relative permeability between the lower soil and the upper soil,the dissipation rate of excess pore water pressure and the settlement rate of the ground will be *** the relative thickness of soil layer with high permeability or low compressibility will also accelerate the consolidation rate of double-layered soil.

关键词： double-layered soil rheological consolidation fractional derivative non-Darcian flow non-Newtonian index finite difference method viscoelasticity

Analysis of one-dimensional consolidation of fractional viscoelastic saturated soils under continuous drainage boundary conditions

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Journal of Central South University 2022年第11期29卷 3745-3756页

作者： cui peng-lu CAO Wen-gui XU Zan WEI Yun-bo ZHANG Jia-chao School of Civil Engineering Hunan UniversityChangsha 410082China Key Laboratory of Building Safety and Energy Efficiency of Ministry of Education(Hunan University) Changsha 410082China School of Civil Engineering Zhengzhou UniversityZhengzhou 450001China

This paper presents the one-dimensional(1D)viscoelastic consolidation system of saturated clayey soil under continuous drainage *** fractional-derivative Merchant(FDM)model has been introduced into the consolidation system to simulate the ***’s flow law is also introduced to describe the non-Darcian flow characteristics *** generalized numerical solution of the 1D consolidation under continuous boundaries is given by the finite difference ***,to illustrate the effectiveness of the numerical method,two simplified cases are compared against the current analytical and numerical ***,the effects of boundary parameters and model parameters on the viscoelastic consolidation were illustrated and *** results indicated that the boundary parameters have a significant influence on *** larger the values of boundary parameters,the faster the whole dissipation of the excess pore-water pressure and soils’settlement ***-order and viscosity parameter have little effect on consolidation,which are primarily significant in the middle and late consolidation *** the increase of the modulus ratio,the whole consolidation process becomes ***,considering Swartzendruber’s flow delays the consolidation rate of the soil layer.

关键词： continuous drainage boundaries fractional-derivative Swartzendruber’s flow finite difference method viscoelastic

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-peng Wang Guo-cui Mao Hui-Lin Jiang Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： CO 2 methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface

An Improved Practical Byzantine Fault-Tolerant Algorithm Based on XGBoost Grouping for Consortium Chains

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Computers, Materials & Continua 2025年第1期82卷 1295-1311页

作者： Xiaowei Wang Haiyang Zhang Jiasheng Zhang Yingkai Ge Kexin cui Zifu peng Zhengyi Li Lihua Wang College of Electronic and Information Engineering Shandong University of Science and TechnologyQingdao266590China

In response to the challenges presented by the unreliable identity of the master node,high communication overhead,and limited network support size within the Practical Byzantine Fault-Tolerant(PBFT)algorithm for consortium chains,we propose an improved PBFT algorithm based on XGBoost grouping called XG-PBFT in this ***-PBFT constructs a dataset by training important parameters that affect node performance,which are used as classification indexes for *** XGBoost algorithm then is employed to train the dataset,and nodes joining the system will be grouped according to the trained grouping *** them,the nodes with higher parameter indexes will be assigned to the consensus group to participate in the consensus,and the rest of the nodes will be assigned to the general group to receive the consensus *** order to reduce the resource waste of the system,XG-PBFT optimizes the consensus protocol for the problem of high complexity of PBFT ***,we evaluate the performance of *** experimental results show that XG-PBFT can significantly improve the performance of throughput,consensus delay and communication complexity compared to the original PBFT algorithm,and the performance enhancement is significant compared to other algorithms in the case of a larger number of *** results demonstrate that the XG-PBFT algorithm is more suitable for large-scale consortium chains.

关键词： Consortium chain PBFT grouping reputation XGBoost

基于非牛顿指数渗流和分数阶Merchant模型的一维流变固结分析

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岩土力学 2019年第6期40卷 2029-2038页

作者：刘忠玉崔鹏陆郑占垒夏洋洋张家超郑州大学土木工程学院

为进一步深入分析饱和黏性土的一维流变固结机制,引入Koeller定义的弹壶元件修正Merchant模型,并以此描述土骨架的黏弹性变形行为;同时引入非牛顿指数渗流模型描述流变固结中的非达西渗流,推导出一个新的饱和黏性土一维流变固结方程,并... 详细信息

为进一步深入分析饱和黏性土的一维流变固结机制,引入Koeller定义的弹壶元件修正Merchant模型,并以此描述土骨架的黏弹性变形行为;同时引入非牛顿指数渗流模型描述流变固结中的非达西渗流,推导出一个新的饱和黏性土一维流变固结方程,并用隐式有限差分法进行数值求解。通过与有关文献中退化模型结果的对比,验证了有限差分算法的有效性。在此基础上,分析非达西渗流模型参数以及分数阶Merchant流变模型参数对流变固结过程的影响。计算结果表明:分数导数阶数和黏滞系数对地基沉降的影响比对孔压消散的影响更为明显,且分数导数阶数越小或黏滞系数越大,地基沉降需要的时间越长。同时,比起达西渗流,非牛顿指数渗流会延缓地基中的孔压消散,使得沉降发展变慢。另外,考虑流变效应时地基沉降要慢于孔压的消散。

关键词：饱和黏性土流变固结分数阶导数非达西渗流非牛顿指数有限差分法黏弹性

Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng Liu Xin Ma Shaojie Tian Qinghe cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

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施工荷载下理想砂井地基弹黏塑性固结分析

建筑科学与工程学报 2020年第3期37卷 118-126页

作者：刘忠玉范智铖朱新牧崔鹏陆郑州大学土木工程学院河南郑州450001

为深入研究饱和黏土流变特性及施工荷载对理想砂井地基固结性状的影响,在Barron理想砂井固结理论基本假定的基础上,引入考虑时间效应的统一硬化(UH)本构模型描述饱和黏土的弹黏塑性变形,同时将施工荷载简化为线性加载,重新推导了理想砂... 详细信息

为深入研究饱和黏土流变特性及施工荷载对理想砂井地基固结性状的影响,在Barron理想砂井固结理论基本假定的基础上,引入考虑时间效应的统一硬化(UH)本构模型描述饱和黏土的弹黏塑性变形,同时将施工荷载简化为线性加载,重新推导了理想砂井固结方程,并给出了固结方程的隐式差分格式。通过与文献中变荷载下砂井地基非线性固结方程解析解的对比,验证了研究方法的有效性。探讨了施工荷载和UH模型参数等对砂井地基固结进程的影响。结果表明:施工阶段砂井地基内出现的孔压升高现象不仅是施工荷载随时间增加造成的,黏土的黏滞性也是原因之一;延长工期和增大UH模型参数均会使砂井地基孔隙水压力的整体消散时间延长,从而减小其固结速率;当工期较长时,按瞬时加载情况计算砂井地基的固结进程将会产生较大误差,而忽略土体的黏滞性将会高估砂井地基的固结速率。

关键词：土力学饱和黏土理想砂井流变固结施工荷载弹黏塑性孔隙水压力

The complex effects of miR-146a in the pathogenesis of Alzheimer's disease

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Neural Regeneration Research 2025年第5期20卷 1309-1323页

作者： Yunfan Long Jiajia Liu Yu Wang Haidong Guo Guohong cui Department of Neurology Shanghai No.9 People’s HospitalShanghai Jiaotong University School of MedicineShanghaiChina Academy of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina School of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina Department of Neurology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina

Alzheimer's disease is a neurodegenerative disorder characterized by cognitive dysfunction and behavioral *** plaques formed through the extracellular deposition of amyloid-βproteins,as well as neurofibrillary tangles formed by the intracellular deposition of hyperphosphorylated tau proteins,comprise two typical pathological features of Alzheimer's *** symptomatic treatment,there are no effective therapies for delaying Alzheimer's disease ***(miR)are small,non-coding RNAs that negatively regulate gene expression at the transcriptional and translational levels and play important roles in multiple physiological and pathological ***,miR-146a,a NF-κB-regulated gene,has been extensively implicated in the development of Alzheimer's disease through several *** has demonstrated substantial dysregulation of miR-146a both during the initial phases and throughout the progression of this *** R-146a is believed to reduce amyloid-βdeposition and tau protein hyperphosphorylation through the TLR/IRAK1/TRAF6 pathway;however,there is also evidence supporting that it can promote these processes through many other pathways,thus exacerbating the pathological manifestations of Alzheimer's *** has been widely reported that miR-146a mediates synaptic dysfunction,mitochondrial dysfunction,and neuronal death by targeting m RNAs encoding synapticrelated proteins,mitochondrial-related proteins,and membrane proteins,as well as other *** the impact on glial cells,miR-146a also exhibits differential *** one hand,it causes widespread and sustained inflammation through certain pathways,while on the other hand,it can reverse the polarization of astrocytes and microglia,alleviate neuroinflammation,and promote oligodendrocyte progenitor cell differentiation,thus maintaining the normal function of the myelin sheath and exerting a protective effect on *** this review,we provide a

关键词： Alzheimer's disease amyloid-β glial cells microRNAs miR-146a neuroinflammatory

考虑成层土阻水减渗效应的地表水入渗过程分析模型

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长江科学院院报 2023年第6期40卷 139-146页

作者：张兴毅曹文贵崔鹏陆李慧鑫湖南大学土木工程学院长沙410082

为完善地表水入渗过程分析的理论方法,抓住从高吸力土入渗到低吸力土,入渗会有停滞和入渗速率降低的特点,考虑湿润锋附近土体的非饱和特性,将土壤中水分运移划分为上层土入渗阶段、滞水入渗阶段和下层土入渗阶段,推导了可反映成层土入... 详细信息

为完善地表水入渗过程分析的理论方法,抓住从高吸力土入渗到低吸力土,入渗会有停滞和入渗速率降低的特点,考虑湿润锋附近土体的非饱和特性,将土壤中水分运移划分为上层土入渗阶段、滞水入渗阶段和下层土入渗阶段,推导了可反映成层土入渗中阻水减渗作用的地表水入渗模型。通过与已有试验结果和现有同类型模型的对比分析,对模型参数进行敏感性分析。结果表明:本文模型比较准确地描述了层状土入渗中的滞水和减渗现象,更好地反映了入渗机理。当湿润锋行进发生停滞时,假设入渗速率呈线性下降是符合实际情况的。不同的土体性质对入渗有不同的影响:下层低吸力土的种类、埋深及积水深度对入渗特性有较大的影响;土体初始含水量仅对入渗时间影响较大;湿润锋过渡区占比对滞水作用有较大影响。

关键词：成层土积水入渗阻水减渗湿润锋非饱和特性

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A new horizon for neuroscience:terahertz biotechnology in brain research

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Neural Regeneration Research 2025年第2期20卷 309-325页

作者： Zhengping Pu Yu Wu Zhongjie Zhu Hongwei Zhao Donghong cui Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry Kangci Hospital of JiaxingTongxiangZhejiang ProvinceChina Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of ScienceShanghaiChina National Facility for Protein Science in Shanghai Shanghai Advanced Research InstituteChinese Academy of SciencesShanghaiChina

Terahertz biotechnology has been increasingly applied in various biomedical fields and has especially shown great potential for application in brain *** this article,we review the development of terahertz biotechnology and its applications in the field of *** evidence indicates promising prospects for the use of terahertz spectroscopy and terahertz imaging techniques in the diagnosis of amyloid disease,cerebrovascular disease,glioma,psychiatric disease,traumatic brain injury,and myelin *** vitro and animal experiments have also demonstrated the potential therapeutic value of terahertz technology in some neuropsychiatric *** the precise underlying mechanism of the interactions between terahertz electromagnetic waves and the biosystem is not yet fully understood,the research progress in this field shows great potential for biomedical noninvasive diagnostic and therapeutic ***,the biosafety of terahertz radiation requires further exploration regarding its two-sided efficacy in practical *** review demonstrates that terahertz biotechnology has the potential to be a promising method in the field of neuropsychiatry based on its unique advantages.

关键词： biological effect brain neuron neuropsychiatry neuroscience non-thermal effect terahertz imaging terahertz radiation terahertz spectroscopy terahertz technology