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Journal of Hydrodynamics 2022年第3期34卷 408-421页

作者： ming-kang li Shuai Zhang Yu-Xiang Peng A-Man Zhang College of Shipbuilding Engineering Harbin Engineering UniversityHarbin150001China Nanhai Institute of Harbin Engineering University Sanya572024China School of Marine Engineering and Technology Sun Yat-sen UniversityZhuhai519082China

The collapse of a cavitation bubble is an interesting topic and it has many applications in the engineering *** to its compressible nature,the modelling of a cavitation bubble is not easy by the Lagrangian method,like the smoothed particle hydrodynamics(SPH),as there is large variation of particle ***,there are two kinds of method that have been proposed to deal with this problem:the particle regeneration technique(PRT)and the volume adaptive scheme(VAS).They have all been validated via several numerical tests of compressible flow in the past *** is based on totally different concept,the ultimate simulation results and properties may ***,we intend to compare these two methods based on the Riemann-based SPH solver with monotone upwind-centered scheme for conservation laws(MUSCL)reconstruction via several numerical *** characteristics of these two methods are discussed and the applicable scope for them are also commented for further usage.

关键词： Compressible flow smoothed particle hydrodynamics(SPH) particle regeneration technique(PRT) volume adaptive scheme(VAS)

Tribological behaviour of biomedical Ti–Zr-based shape memory alloys

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Rare Metals 2017年第6期36卷 478-484页

作者： Wen-Tao Qu Xu-Guang Sun Bi-Fei Yuan kang-ming li Zhen-Guo Wang Yan li School of Mechanical Engineering Xi'an Shiyou UniversityXi'an 710065 China School of Materials Science and Engineering Beihang University Beijing 100191 China Key Laboratory of Aerospace Materials and Performance(Ministry of Education) Beihang University Beijing 100191China

The tribological behaviour of Ti-30Zr, Ti-20Zr-10Nb and Ti-19Zr-10Nb-1Fe alloys was investigated using reciprocating friction and wear tests. X-ray diffraction（XRD） results indicate that Ti-30Zr, Ti-20Zr-10Nb and Ti-19Zr-10Nb-1Fe alloys are composed of hexagonal a＇-martensite, orthorhombic a＇＇-martensite and bcc β phases,respectively. Ti-30Zr alloy has the highest hardness of HV（273.1 ± 9.3）, while Ti-20Zr-10Nb alloy exhibits the lowest hardness of HV（235.2 ± 20.4） among all the *** tribological results indicate that Ti-30Zr alloy shows the best wear resistance among these alloys, corresponding to the minimum average friction coefficient of 0.052 and the lowest wear rate of 6.4x10^-4mm3·N^-1·m^-1. Ti-20Zr-10Nb alloy displays better wear resistance than Ti-19Zr-10Nb-1Fe alloy, because the iron oxide is easy to fall off and less Nb2O5 films form on the worn surface of the *** and abrasive wear in association with adhesive wear are the main wear mechanism of these alloys.

关键词： Biomedical material Shape memory alloyTi-Zr Tribology

Preparation of silver nanoparticles through the reduction of straw-extracted lignin and its antibacterial hydrogel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 504-514页

作者： Lou Zhang Shuo li Fu Tang Jingkai Zhang Yuetong kang Hean Zhang lidong li State Key Laboratory for Advanced Metals and Materials School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Silver nanoparticles(Ag NPs)have attracted attention in the field of biomaterials due to their excellent antibacterial ***,the reducing and stabilizing agents used for the chemical reduction of Ag NPs are usually toxic and may cause water *** this work,Ag NPs(31.2 nm in diameter)were prepared using the extract of straw,an agricultural waste,as the reducing and stabilizing *** analysis revealed that the straw extract contained lignin,the structure of which possesses phenolic hydroxyl and methoxy groups that facilitate the reduction of silver salts into Ag *** surfaces of Ag NPs were negatively charged due to the encapsulation of a thin layer of lignin molecules that prevented their *** the prepared Ag NPs were added to the precursor solution of acrylamide,free radical polymerization was triggered without the need for extra heating or light irradiation,resulting in the rapid formation of an Ag NP-polyacrylamide composite *** inhibition zone test proved that the composite hydrogel possessed excellent antibacterial ability due to the presence of Ag *** prepared hydrogel may have potential applications in the fabrication of biomedical materials,such as antibacterial dressings.

关键词： silver nanoparticles hydrogel straw extraction antibacterial

Photo‑Energized MoS_(2)/CNT Cathode for High‑Performance li–CO_(2)Batteries in a Wide‑Temperature Range

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Nano-Micro Letters 2025年第1期17卷 160-175页

作者： Tingsong Hu Wenyi lian kang Hu Qiuju li Xueliang Cui Tengyu Yao Laifa Shen Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

li–CO_(2) batteries are considered promising energy storage systems in extreme environments such as Mars;however,severe performance degradation will occur at a subzero temperature owning to the sluggish reaction ***,a photo-energized strategy adopting sustainable solar energy in wide working temperature range li–CO_(2) battery was achieved with a binder-free MoS_(2)/carbon nanotube(CNT)photo-electrode as *** unique layered structure and excellent photoelectric properties of MoS_(2) facilitate the abundant generation and rapid transfer of photo-excited carriers,which accelerate the CO_(2) reduction and li_(2)CO_(3) decomposition upon *** illuminated battery at room temperature exhibited high discharge voltage of 2.95 V and mitigated charge voltage of 3.27 V,attaining superior energy efficiency of 90.2%and excellent cycling stability of over 120 *** at an extremely low temperature of−30℃,the battery with same electrolyte can still deliver a small polarization of 0.45 V by the photoelectric and photothermal synergistic mechanism of MoS_(2)/CNT *** work demonstrates the promising potential of the photo-energized wide working temperature range li–CO_(2) battery in addressing the obstacle of charge overpotential and energy efficiency.

关键词： li-CO_(2)batteries Photo-energized Wide operation-temperature Kinetics MoS_(2)

一种基于21-冠-7和柱[5]芳烃分子识别的超分子聚合物

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高分子学报 2017年第1期27卷 129-134页

作者：李明阳韩康李健贾学顺李春举上海大学化学系上海200444

合成了一个苯并21-冠-7-柱[5]芳烃杂二主题主体分子(1),二级铵盐是21-冠-7大环的合适客体,而柱[5]芳烃空腔可以强络合中性客体基元5-(1H-1,2,3-triazol-1-yl)pentanenitrile(TAPN),因此选择含有2个TAPN的客体2和含有2个二级铵盐的客体3... 详细信息

合成了一个苯并21-冠-7-柱[5]芳烃杂二主题主体分子(1),二级铵盐是21-冠-7大环的合适客体,而柱[5]芳烃空腔可以强络合中性客体基元5-(1H-1,2,3-triazol-1-yl)pentanenitrile(TAPN),因此选择含有2个TAPN的客体2和含有2个二级铵盐的客体3作为连接体,依靠二级铵盐?21-冠-7和中性客体?柱[5]芳烃正交主客体作用,构筑了一个三组分超分子聚合物(1,2和3的摩尔比为1∶0.5∶0.5),该组装体的形成得到了1H-NMR、DOSY、黏度和SEM等手段的表征?所构筑的超分子聚集体是浓度依赖的,其形成超分子聚合物的临界浓度为49 mmol/L.

关键词：超分子聚合物自组装冠醚柱芳烃

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壳聚糖涂膜常温保鲜草莓的试验研究

食品科学 2005年第Z1期26卷 84-87页

作者：康明丽牟德华李艳河北科技大学生物科学与工程学院河北石家庄050018

以壳聚糖涂膜对草莓进行常温保鲜试验,结果表明:以1.25%壳聚糖涂膜的草莓其VC、总酸、总糖、可溶性固形物含量最高,腐烂指数、呼吸强度、失重率最低,贮藏效果最好。

关键词：草莓贮藏壳聚糖

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桃果采后生理变化与保鲜技术研究

北方园艺 2008年第5期 233-235页

作者：康明丽刘坤河北科技大学生物科学与工程学院河北石家庄050018

论述了桃果采后生理变化及影响桃果贮藏品质的因素,如:品种、采收期、果实大小、呼吸作用、贮藏环境条件、酶、果实内含物等,并对桃果的保鲜技术进行了论述。

关键词：桃贮藏保鲜技术

The autophagy-lysosome pathway:a potential target in the chemical and gene therapeutic strategies for Parkinson’s disease

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Neural Regeneration Research 2025年第1期20卷 139-158页

作者： Fengjuan Jiao lingyan Meng kang Du Xuezhi li School of Mental Health Jining Medical UniversityJiningShandong ProvinceChina Shandong Collaborative Innovation Center for Diagnosis Treatment and Behavioral Interventions of Mental DisordersInstitute of Mental HealthJining Medical UniversityJiningShandong ProvinceChina

Parkinson’s disease is a common neurodegenerative disease with movement disorders associated with the intracytoplasmic deposition of aggregate proteins such asα-synuclein in *** one of the major intracellular degradation pathways,the autophagy-lysosome pathway plays an important role in eliminating these *** evidence has shown that upregulation of the autophagy-lysosome pathway may contribute to the clearance ofα-synuclein aggregates and protect against degeneration of dopaminergic neurons in Parkinson’s ***,multiple genes associated with the pathogenesis of Parkinson’s disease are intimately linked to alterations in the autophagy-lysosome ***,this pathway appears to be a promising therapeutic target for treatment of Parkinson’s *** this review,we briefly introduce the machinery of ***,we provide a description of the effects of Parkinson’s disease–related genes on the autophagy-lysosome ***,we highlight the potential chemical and genetic therapeutic strategies targeting the autophagy–lysosome pathway and their applications in Parkinson’s disease.

关键词： autophagy chemical therapy gene therapy Parkinson’s disease α-synuclein