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Physical Prediction Model of Compound Hydrodynamic Unload-Load Response Ratio and Its Application in Reservoir Colluvium Landslide

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Journal of Earth Science 2022年

作者： Lu Guo Keqiang He Honghua Liu fandi meng Xuchun Wang School of Civil Engineering， Qingdao University of Technology Key Laboratory of Geological Safety of Coastal Urban Underground Space， Ministry of Natural Resources

It is well known that the deformation and damage of reservoir colluvium landslides are often determined by the combined dynamics of reservoir water level change and rainfall. Based on the systematic analysis of the change law of reservoir water level， rainfall and displacements of reservoir colluvium landslide， this paper proposes the compound hydrodynamic action of rainfall and reservoir water as the unload-load parameter， and the landslide displacement as the unload-load response parameter. Based on this， a physical prediction model of the compound hydrodynamic unload-load response ratio of reservoir colluvium landslide was established， and the quantitative relationship between the compound hydrodynamic unload-load response ratio and its stability evolution was in-depth analyzed and determined. On the basis of the above research， taking Shuping landslide， a typical hydrodynamic pressure landslide as an example， the unload-load response ratio model is used to systematically evaluate and predict the stability evolution law and the change trend of the landslide under compound hydrodynamic action. The prediction result shows that the variation law of the compound hydrodynamic unload-load response ratio is consistent with the dynamic evolution law of its stability. Therefore， the above studies show that the compound hydrodynamic unload-load response ratio parameter is an effective displacement dynamic evaluation parameter for reservoir colluvium landslides， so it can be used in the prediction of the reservoir colluvium landslides.

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Evaluation of coating resistivity for pigmented/unpigmented epoxy coatings under marine alternating hydrostatic pressure

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Journal of Materials Science & Technology 2021年第5期64卷 165-175页

作者： fandi meng Li Liu Yu Cui Fuhui Wang Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

To realize a rapid evaluation of coating degradation under alternating hydrostatic pressure(AHP),appropriate physical models of electrochemical impedance spectroscopy(EIS)data fitting were respectively developed for epoxy coatings with and without pigments,based on their different water absorption behaviours.Power-law model was selected to evaluate the anti-permeability of epoxy varnish(EV)coating,which tends to form through pores in the coating structure.On the other hand,two-layer model based on Young theory was developed to evaluate the anti-permeability of pigmented epoxy coating.Consequently,the resistivity profile with coating thickness was calculated as a critical parameter to describe the anti-permeability of coating at different immersion time.The interpretation of water diffusion dynamics based on different coating structures was also given,which is responsible for the choice of distribution models.

关键词： Organic coatings Coating resistivity Distribution models EIS Alternating hydrostatic pressure

Multifunctional superhydrophobic coatings fabricated from basalt scales on a fluorocarbon coating base

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Journal of Materials Science & Technology 2021年第25期84卷 86-96页

作者： Hongpeng Zheng Li Liu fandi meng Yu Cui Zhong Li Emeka E.Oguzie Fuhui Wang Shenyang National Laboratory for Materials Science Northeastern UniversityNo.3-11 Wenhua RoadShenyang110819PR China Institute of Metal Research Chinese Academy of SciencesWencui Rd 62Shenyang110016PR China Africa Centre of Excellence in Future Energies and Electrochemical Systems Federal University of Technology OwerriPMB 1526OwerriImo StateNigeria

Superhydrophobic coatings are increasingly being evaluated as anticorrosion interventions in exceedingly hydrated environments.However,concerns about their long-term durability and amenability to large-area applications in marine environments are still hindering commercial-scale deployment.This study is focused on development of easy-to-apply superhydrophobic coatings,with multifunctional capabilities,in order to extend the integrity and durability of the coatings in harsh marine environments.Here,a set of facile methods involving selective chemical etching using concentrated Na OH,as well as fluorination with perfluoropolyether methyl ester were adopted to fabricate a superhydrophobic surface on basalt scales,having the required rough hierarchical micro-nanotextured and low surface energy.The superhydrophobic basalt scales were subsequently aligned atop a fluorocarbon resin,pre-deposited on a metal substrate,to yield a multifunctional superhydrophobic coating(3μL water droplet;contact angle=165.1°,rolling angle=0.7°),easily amenable to large surface area application and having excellent wear resistance,UV-aging resistance,salt spray resistance,corrosion resistance and antibacterial capabilities.

关键词： Basalt scales Multifunctional Superhydrophobic Chemical etching Fluoridation

Optimizing the electromagnetic wave absorption performance of designed hollow CoFe_(2)O_(4)/CoFe@C microspheres

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Journal of Materials Science & Technology 2021年第22期81卷 190-202页

作者： Jianwen Ge Shimeng Liu Li Liu Yu Cui fandi meng Yixing Li Xuefeng Zhang Fuhui Wang Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang110819China Institute of Metal Research Chinese Academy of SciencesShenyang110016China

Whereas hollow composites present some superiorities like abundant micro interfaces,outstanding impedance matching as the responses of electromagnetic wave(EMW),but versatile designs including crystal transformation,heterogeneous structures and magnetic exchange coupling to further contribution are even not designed or stressed together in previous literatures.In this article,rational design on the hollow CoFe_(2)O_(4)/CoFe@C architecture has been conducted by a sequential process of self-sacrifice by combustion,in-suit polymerization and calcination.Results of morphology observation exhibit that heterogeneous CoFe_(2)O_(4)/CoFe@C composites were generated via crystal transformation from CoFe_(2)O_(4) to CoFe alloys with encapsulated carbon,together with ultimate growth of crystal particles.As for three carbon-based architectures,relatively low-graphitization carbon layers are favorable for enhancing impedance matching and polarization relaxation,but suppressing the conductive loss essentially.Moderate carbon content endows sample S2 with the maximum magnetic saturation(Ms)of 152.4 emu g^(-1).The optimized RL of sample S3 is up to-51 dB with 30 wt%loading,and the effective absorption band(EAB)is of 5.9 GHz at the thickness of 2.17 mm,while 6.0 GHz can be reached at 2.5 mm.Therefore,this hollow multi-interfaces design definitely shed light on novel structure for new excellent absorbers.

关键词： CoFe_(2)O_(4)/CoFe@C Alloying processing Absorption performance Carbon layers

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组胺改性环氧树脂及其对有机涂层性能的影响

中国腐蚀与防护学报 2024年第1期44卷 151-158页

作者：曹京宜李敬殷文昌孟凡帝刘莉中国人民解放军92228部队北京100072 东北大学沈阳材料科学国家研究中心腐蚀与防护研究部沈阳110016

针对深海极端环境下涂层/金属界面结合力差的问题,通过将组胺接枝于环氧树脂E44分子链制备了能与基体金属形成化学键的活性环氧树脂(ZA-EP)。ZA-EP中组胺杂原子可通过与Fe/Fe的氧化物的空位轨道形成共用孤对电子,促使Fe^(2+)与树脂形成... 详细信息

针对深海极端环境下涂层/金属界面结合力差的问题,通过将组胺接枝于环氧树脂E44分子链制备了能与基体金属形成化学键的活性环氧树脂(ZA-EP)。ZA-EP中组胺杂原子可通过与Fe/Fe的氧化物的空位轨道形成共用孤对电子,促使Fe^(2+)与树脂形成复合物,从而提高了涂层与金属界面的结合强度。相比于普通环氧涂层,添加活性树脂的涂层附着力明显提高,如添加3%ZA-EP后涂层附着力由6.02 MPa提高至15.36 MPa。另外,模拟深海交变压力环境下的服役结果显示,3%ZA-EP/EP涂层的饱和吸水率最低,循环一周期后仅为1.6%;72 h后的EIS结果表明,3%ZA-EP/EP涂层阻抗值仍保持稳定。组胺改性使得环氧涂层/金属界面形成化学键合作用,增强了涂层的附着力,因此ZA-EP/EP涂层具有更加优异的防护能力。

关键词：组胺环氧树脂改性附着力

Reactive oxygen species generation is essential for cisplatininduced accelerated senescence in hepatocellular carcinoma

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Frontiers of Medicine 2014年第2期8卷 227-235页

作者： Kai Qu Ting Lin Zhixin Wang Sinan Liu Hulin Chang Xinsen Xu fandi meng Lei Zhou Jichao Wei Minghui Tai Yafeng Dong Chang Liu Department of Hepatobiliary Surgery Surgical Intensive Care Unit the First Affiliated Hospital School of Medicine Xi'an Jiaotong University Xi 'an 710061 China Department of Obstetrics and Gynecology Kansas University Kansas City KS 66160 USA

Accelerated senescence is important because this process is involved in tumor suppression and has been induced by many chemotherapeutic agents. The platinum-based chemotherapeutic agent cisplatin displays a wide range of antitumor activities. However, the molecular mechanism of cisplatin-induced accelerated senescence in hepatocellular carcinoma （HCC） remains unclear. In the present study, the growth inhibitory effect of cisplatin on HepG2 and SMMC-7721 cells was detected by 3-（4,5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide assay. Cellular senescence was then assessed by I^-galactosidase assay. Senescence-related factors, including p53, p21, and p16, were evaluated by quantitative reverse transcription-polymerase chain reaction. Reactive oxygen species （ROS） was analyzed by flow cytometry. Our results revealed that cisplatin reduced the proliferation of HepG2 and SMMC-7721 cells in a dose- and time-dependent manner. Senescent phenotype observed in cisplatin- treated hepatoma cells was dependent on p53 and p21 activation but not on pl 6 activation. Furthermore, cisplatininduced accelerated senescence depended on intracellular ROS generation. The ROS scavenger N-acetyl-Lcysteine also significantly suppressed the cisplatin-induced senescence of HepG2 and SMMC-7721 cells. In conclusion, our results revealed a functional link between intracellular ROS generation and cisplatin-indnced accelerated senescence, and this link may be used as a potential target of HCC.

关键词： reactive oxygen species senescence cisplatin hepatocellular carcinoma

《长恨歌》:自恋、主体性缺失及匮乏需求的关系

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枣庄学院学报 2024年第1期41卷 48-55页

作者：孙凡迪北京语言大学文学院北京100083 中国气象局华风气象北京100081

《长恨歌》通过对王琦瑶的形象塑造揭示了上海阶层女性的生命形态和生存方式。小说把20世纪40年代到80年代的几个历史节点融进小说的发展脉络,展现了王琦瑶传奇、迷惘而又悲剧的一生。在大起大落、悲喜无常的女性生存中揭示:自恋是一切... 详细信息

《长恨歌》通过对王琦瑶的形象塑造揭示了上海阶层女性的生命形态和生存方式。小说把20世纪40年代到80年代的几个历史节点融进小说的发展脉络,展现了王琦瑶传奇、迷惘而又悲剧的一生。在大起大落、悲喜无常的女性生存中揭示:自恋是一切的因和果,它隐藏在人性底色中不能拔除,继而导致一个个更可悲的连锁反应。自恋、主体性缺失与匮乏需求增强,三者形成了紧密嵌套的因果闭环。过度自恋导致女性主体性缺失,进而使其困在匮乏和索取的低级层面拒绝自体真正成长,反过来又进一步加重自恋,导致最终的悲剧。

关键词：自恋女性主体性缺失匮乏需求

桂枝茯苓颗粒在子宫肌瘤治疗中的应用及对性激素的影响分析

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实用妇科内分泌电子杂志 2024年第8期11卷 53-55页

作者：管凡迪白山市人民医院妇产科吉林白山134300

目的分析子宫肌瘤(UF)患者采用桂枝茯苓颗粒治疗的疗效以及对性激素的影响。方法选取70例UF患者,根据随机数字表法分为对照组与研究组,各35例。对照组采取常规治疗,研究组采用桂枝茯苓颗粒治疗。比较两组临床疗效。结果治疗后研究组性... 详细信息

目的分析子宫肌瘤(UF)患者采用桂枝茯苓颗粒治疗的疗效以及对性激素的影响。方法选取70例UF患者,根据随机数字表法分为对照组与研究组,各35例。对照组采取常规治疗,研究组采用桂枝茯苓颗粒治疗。比较两组临床疗效。结果治疗后研究组性激素水平低于对照组(P<0.05)。治疗后研究组子宫体积、肌瘤体积均小于对照组,肌瘤直径短于对照组,痛经、月经量评分均低于对照组(P<0.05)。治疗后研究组炎性因子指标低于对照组(P<0.05)。结论UF患者采用桂枝茯苓颗粒治疗效果理想,可有效缩小子宫与肌瘤体积,缓解痛经,控制炎性反应,降低性激素水平,保证疗效,值得临床推广。

关键词：子宫肌瘤桂枝茯苓颗粒性激素炎性因子

数字媒体艺术对中华优秀传统文化传承发展作用研究

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丝网印刷 2024年第2期 90-92页

作者：王韵徐凡迪济南职业学院

数字媒体艺术在中国传统文化的传承与发展中扮演着日益重要的角色。文章探讨数字媒体艺术如何与中国传统文化相互交融,及其在文化传承中的作用,更好地利用数字媒体艺术促进中国传统文化的传承与发展,以适应现代社会的需求。

关键词：数字媒体艺术中国传统文化传承创新