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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 103-113页

作者： CHEN Wuxing CHEN Shuang yu yan ZHANG Jiangyi XU Haiyang GUO Wei School of Mines China University of Mining and TechnologyXuzhou 221000China College of Construction Engineering Jilin Uni-versityChangchun 130026China

The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and *** effect of pre-wetting technology on the interaction between SBS modified asphalt and aggregate was analyzed by molecular dynamics *** diffusion coefficient and concentration distribution of SBS modified asphalt on aggregate surface are *** simulation results show that the diffusion coefficient of the aggregate surface of SBS modified asphalt is increased by 47.6%and 70.5%respectively after 110#asphalt and 130#asphalt are *** concentration distribution of SBS modified asphalt on the aggregate surface after pre-wetting is more *** to the results of interface energy calculation,the interface energy of SBS modified bitumen and aggregate can be increased by about 5%after *** to the results of molecular dynamics simulation,the pre-wetting technology can effectively improve the interface workability of SBS modified bitumen and aggregate,so as to improve the interface performance.

关键词： pre-wet oil-stone interface interface interaction interface mechanics molecular dynamics simulation

miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

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Neural Regeneration Research 2025年第1期20卷 277-290页

作者： Meng Cong Jing-Jing Hu yan yu Xiao-Li Li Xiao-Ting Sun Li-Ting Wang Xia Wu Ling-Jie Zhu Xiao-Jia yang Qian-Ru He Fei Ding Hai-yan Shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors

大语言模型对批评隐喻分析中隐喻识别的应用性研究

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外语学刊 2025年第1期 47-56页

作者：于艳春黑龙江大学外文学院哈尔滨150080 哈尔滨学院外国语学院哈尔滨150080

批评隐喻分析(critical metaphor analysis,CMA)作为一种语篇的隐喻分析方法,意在揭示语言使用者的潜在意图,不但可深化我们对语言隐喻的理解,还能揭示隐喻在人类思维和交流中的重要作用。隐喻识别作为CMA分析框架中的一个关键步骤,为... 详细信息

批评隐喻分析(critical metaphor analysis,CMA)作为一种语篇的隐喻分析方法,意在揭示语言使用者的潜在意图,不但可深化我们对语言隐喻的理解,还能揭示隐喻在人类思维和交流中的重要作用。隐喻识别作为CMA分析框架中的一个关键步骤,为隐喻阐释和隐喻说明等后续研究工作提供了坚实基础,是CMA中极其重要且不可或缺的一部分。本研究首先对CMA中隐喻识别的融合性和枢纽性进行深入讨论,探究CMA中隐喻识别的发展特性,熟悉CMA的整个分析框架。同时,针对CMA在隐喻识别中存在的客观性不足问题,提出尝试结合大语言模型(ChatGPT)进行隐喻识别的方法,并基于真实研究案例了解该方法的具体实践操作。通过案例,本研究也对使用大语言模型(ChatGPT)进行隐喻识别过程中遇到的问题进行分析和总结,希望通过合理、恰当地应用技术手段,探索人机协作的最佳方式,以提升隐喻识别的客观性,完善CMA的分析框架,更深入地进行语篇的隐喻研究。

关键词：大语言模型 ChatGPT 批评隐喻分析隐喻识别隐喻阐释隐喻说明

Signal molecule-mediated hepatic cell communication during liver regeneration

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World Journal of Gastroenterology 2009年第46期15卷 5776-5783页

作者： Zhen-yu Zheng Shun-yan Weng yan yu School of Agricultureand Biology Shanghai Jiao Tong University Shanghai 200240China

Liver regeneration is a complex and well-orchestrated process,during which hepatic cells are activated to produce large signal molecules in response to liver injury or mass *** signal molecules,in turn,set up the connections and cross-talk among liver cells to promote hepatic *** this review,we endeavor to summarize the network of signal molecules that mediates hepatic cell communication in the regulation of liver regeneration.

关键词： Signal molecule Hepatic cells Cellular cross-talk Signal communication Liver regeneration

Microscopic Response of TRIP Steels to Prestrain During Plastic Deformation

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Journal of Iron and Steel Research International 2013年第9期20卷 80-85页

作者： yu Hai-yan School of Automotive Engineering Tongji University

In order to uncover the mechanism of elastic modulus degradation during plastic deformation, uniaxial ten- sile test of transformation-induced plasticity （TRIP） steels under different prestrain levels was carried out. The real elastic modulus unloaded at each prestrain was calculated by linearly fitting. The microstructure evolution with plas-tic strain and the fracture morphology were monitored by using a scanning electron microscope （SEM）. Dislocation density and its distribution were detected under a transmission electron microscope （TEM）. Microscopic mechanism of the elastic modulus degradation of TRIP steels was discussed in detail. Experimental results indicated that the in- vestigated TRIP600 steel was of severe elastic modulus degradation during plastic deformation. The new-born mar tensite distributed among the retained austenite, resulting in the combination of good ductility and high strength for TRIP steels. It was the change of dislocation movement that induced the variation of atomic binding force and finally led to the variation of elastic modulus.

关键词： microstructural evolution TRIP steel plastic deformation elastic modulus prestrain

Thermal Behavior and Determination of the Heated Structure of 11ÅAnomalous Tobermorite by in situ X-ray Diffraction

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Acta Geologica Sinica(English Edition) 2021年第3期95卷 810-829页

作者： yan yu WANG Hejing School of Earth and Space Sciences Peking UniversityBeijing 100871China Key Laboratory of Orogenic Belt and Crustal Evolution Ministry of EducationBeijing 100871China

This article presents the thermal transitions of a tobermorite-bearing sample when heated from 30℃ up to 1200℃,both in vacuum and in static air,including tobermorite transforming to wollastonite,aragonite to calcite and calcite to *** obtained by in situ high temperature X-ray diffraction,field emission scanning electron microscopy and scanning transmission electron microscopy analyses jointly indicate that the investigated tobermorite is *** variations along the a,b,c axes and the volume changes of tobermorite with increasing temperature are described,and its thermal shrinkage coefficients therefore *** comparison between the refined structures at 30℃ and 800℃ demonstrates that the shrinkage degree(Δa/a0)along the a axis is higher than those(Δb/b0,Δc/c0)along the b and c *** wollastonite is formed in two ways:Tobermorite converting to wollastonite and lime reacting with quartz to form wollastonite.

关键词： tobermorite in situ X-ray diffraction phase transition thermal shrinkage wollastonite

Natural organic matter(NOM) removal from surface water by coagulation

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Journal of Environmental Sciences 2005年第1期17卷 119-122页

作者： GAOBao-yu yuEQin-yan SchoolofEnvironmentalScienceandEngineering ShandongUniversityJinan250100China

Poly aluminum chloride sulfate(PACS) with different SO 2- 4/Al 3+ mole ratios and bacicity(γ) of 2 0 was synthesized using AlCl 3\56H\-2O, Al\-2(SO\-4)\-3\518H 2O and Na 2CO 3 as raw materials. The effect of SO 2- \-4/Al 3+ ratio on the performance of PACS for removal of natural organic matter(NOM) with humic rich actual water was examined. It was found that PACS with SO 2- \-4/Al 3+ mole ratio of 0.0664 achieved the best NOM removal results and was selected to investigate its performance in comparison with PAC, FeCl 3 and alum(Al 2 (SO 4) 3·18H 2O). The experimental results showed that the optimum NOM removals were achieved at pH 5.0\_8.2 and the dose of about 5 0 mg/L as Al both for the selected PACS and PAC, at pH 5 0\_6 0 and the dose of about 7 0 mg/L as Fe for FeCl 3, and at pH 5 0\_7 0 and the dose of about 7 0 mg/L as Al for alum, respectively. At the optimum conditions, the selected PACS achieved the best NOM removal result, followed by PAC, FeCl 3, and then alum. The concentration of residual aluminum in treated water by the selected PACS and PAC under the optimum coagulant conditions was approximately 115 μg/L, which can completely comply with the regulated limits.

关键词： coagulation humic rich water NOM removal residual aluminum

Novel bake hardening mechanism for bainite-strengthened complex phase steel

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Journal of Materials Science & Technology 2023年第12期143卷 117-128页

作者： Hang yu yu yan Cheng Zhang Lijie Qiao Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Corrosion and Protection Center University of Science and Technology BeijingBeijing 100083China

In the automobile industry,stamping and paint baking processes are used to strengthen components,and this not only saves costs,but also further reduces the bodyweight of *** this work,the bake hardening mechanism of the complex phase(CP)steel CP980 was explored by comparing it with that of DP1180,which has a clear bake hardening mechanism and a carbon content similar to that of *** analyzing the bake hardening response and the microstructural changes of the two steels,we found that the bake hardening process of CP980 was divided into three *** the first two stages,the carbon atoms diffused into dislocations to form Cottrell atmosphere pinning dislocations,and excess car-bon atoms formed carbon clusters or low-temperature carbide pinning dislocations that were similar to *** the third stage,the dislocation acted as rapid channels for carbon diffusion,and fine cementite gradually formed when the carbon clusters gathered at the dislocations as precursors,resulting in pre-cipitation *** novel bake-hardening(BH)mechanism is crucial for obtaining a comprehensive understanding of the strain-baking behavior of advanced high-strength steals(AHSS).

关键词： Age hardening Bainitic steel Carbon diffusion Cementite Mechanical property Automotive weight reduction

Flow stress model considering the transformation-induced plasticity effect and the inelastic strain recovery behavior

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International Journal of Minerals,Metallurgy and Materials 2011年第2期18卷 185-191页

作者： Hai-yan yu Li Bao School of Automotive Engineering Tongji University Shanghai 200092 China

On the basis of continuum mechanics and the Mori-Tanaka mean field theory, a micro-mechanical flow stress model that considered both the transformation-induced plasticity （TRIP） effect and the inelastic strain recovery behavior of TRIP multiphase steels was presented. The relation between the volume fraction of constituent phases and plastic strain was introduced to characterize the transformation-induced plasticity effect of TRIP steels. Loading-unloading-reloading uniaxial tension tests of TRIP600 steel were carried out and the strain recovery behavior after unloading was analyzed. From the experimental data, an empirical elastic modulus expression is extracted to characterize the inelastic strain recovery. A comparison of the predicted flow stress with the experimental data shows a good agreement. The mechanism of the transformation-induced plasticity effect and the inelastic recovery effect acting on the flow stress is also discussed in detail.

关键词： flow stress transformation-induced plasticity inelastic strain elastic modulus

Researches on the Structure and Properties of Mullite Solid Solution Made from Industrial Waste

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Chinese Journal of Structural Chemistry 2006年第8期25卷 965-970页

作者： RUAN yu-Zhong yu yan WU Ren-Ping College of Materials Science and Engineering Fuzhou University Fuzhou 350002 China

The waste slag from aluminum profile factory and silicon fine powder from ferroalloy factory were utilized as the main raw materials to synthesize mullite solid solution Al4＋2xSi2-xO10-x/2, whose defect formation mechanism, crystalline phase composition, crystal cell parameters, microstructures and morphologies were characterized in detail by XRD and SEM. The results show that because of the ultrafine particle size of the materials, the content of mullite solid solution synthesized by this method is higher than that by regular method. Keywords： waste slag from aluminum factory, silicon fine powder, mullite, solid solution

关键词： waste slag from aluminum factory silicon fine powder mullite solid solution