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Evolution of MnO–SiO2–Al_(2)O_(3)–MgO inclusions during heat treatment at 1100℃

Journal of Iron and Steel Research International 2024年第5期31卷 1221-1231页

作者： Xu-bo Lei jian-li li qiang Zeng Hang-yu Zhu Yue Yu The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan430081HubeiChina

To investigate the evolutionary behavior of the MnO–SiO_(2)–Al_(2)O_(3)–MgO inclusions during heat treatment,water quenched samples were isothermally held at 1100°C for 120 min in Ar and air atmosphere,and the obtaining samples were analyzed by X-ray diffraction,scanning electron microscopy and energy dispersive *** showed that 3MnO·Al_(2)O_(3)·3SiO_(2)and MnO·SiO_(2)were detected in the 5 wt.%MgO system after isothermal holding in Ar atmosphere,while MgO·Al_(2)O_(3),MnO·SiO_(2)and Mn7O8·SiO4 were detected in air *** evolutionary behavior of the 10,15 and 20 wt.%MgO systems after isothermal holding in different atmosphere were *** affected the solid phase transformation of the low MgO content *** calculation results of FactSage 8.1 showed that MgO·Al_(2)O_(3)was formed in the 5 wt.%MgO system with air *** solid phase transformation was accompanied by grain coarsening during the isothermal holding *** differences in the solid phase transformation in different atmosphere of the 5 wt.%MgO system indicated that it was a gas-phase transport grain coarsening *** enrichment of Al element in the liquid phase region at the grain edges,the homogeneous distribution of Mg element and the disappearance of the liquid phase within the crystal revealed that other MgO content systems were liquid–solid transport grain coarsening mechanism.

关键词： Evolution Glassy phase Inclusion Heat treatment MgO·Al_(2)O_(3)

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Synthesis of Sulfur/Selenium-containing Polyester with Recyclability and Controllable Hydrophilicity and Glass Transition Temperature

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Chinese Journal of Polymer Science 2023年第12期41卷 1836-1845,I0004,I0005页

作者： Wen-Jing li Xiang-qiang Pan jian Zhu Zheng-Biao Zhang jiangsu Key Laboratory of Advanced Functional Polymer Design and Application Department of Polymer Science and EngineeringCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China

We present a ring-opening polymerization of bridged cyclic lactone utilizing alcohol as the initiator and organic base as the *** γ-butyrolactone monomers(PhSGBL and PhSeGBL)were synthesized efficiently from commercially available 3-cyclohexene-1-carboxylic *** to the ring strain of the bridged structure,ring-opening polymerization of this type of γ-butyrolactone derivative was successfully carried out under mild conditions,e.g.,using ethylene glycol as the initiator and a commercial catalyst[1,5,7-triazabicyclo[4.4.0 dec-5-ene(TBD)]]as the catalyst at 30℃.The obtained polymer could be degraded to its monomer for recycling in the presence of ZnCl_(2) as a *** and PhSeGBL could also be copolymerized with ε-caprolactone to tune the glass transition ***,the hydrophilicity of the obtained sulfur-containing polymers could be adjusted by selectively oxidizing the thioether side group to sulfone/sulfoxide,which offered a way to tune the hydrophilicity of *** the other hand,the obtained selenium-containing compound could be degraded in the presence of m-CPBA(3-chloroperbenzoic acid),which offered potential application in sustained drug release.

关键词： Ring-opening polymerization Polyester Closed-loop recycling Selective oxidation

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Microbes as a production host to produce natural active compounds from mushrooms:biosynthetic pathway elucidation and metabolic engineering

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Chinese Journal of Natural Medicines 2021年第8期19卷 580-590页

作者： YANG li-Yang GONG qiang GUO jian-Quan li Gui-Lan School of Basic Medical Sciences Shanxi University of Chinese MedicineJinzhong 030619China School of Public Health Shanxi Medical UniversityTaiyuan 030001China

Mushrooms are abundant in bioactive natural *** to strict growth conditions and long fermentation-time,microbe as a production host is an alternative and sustainable approach for the production of natural *** review focuses on the biosynthetic pathways of mushroom originated natural compounds and microbes as the production host for the production of the above natural compounds.

关键词： Mushroom Natural compound Microbes Synthetic biology Metabolic engineering

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Squeezing microwaves by magnetostriction

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National Science Review 2023年第5期10卷 208-214页

作者： Jie li Yi-Pu Wang jian-qiang You Shi-Yao Zhu Interdisciplinary Center of Quantum Information Zhejiang Province Key Laboratory of Quantum Technology and Deviceand State Key Laboratory of Modern Optical InstrumentationSchool of PhysicsZhejiang University

Squeezed light finds many important applications in quantum information science and quantum metrology,and has been produced in a variety of physical systems involving optical non-linear ***,we show how a non-linear magnetostrictive interaction in a ferrimagnet in cavity magnomechanics can be used to reduce quantum noise of the electromagnetic *** show optimal parameter regimes where a substantial and stationary squeezing of the microwave output field can be *** of the scheme is within reach of current technology in cavity electromagnonics and *** work provides a new and practicable approach for producing s queezed vacuum states of electromagnetic fields,and may find promising applications in quantum information processing and quantum metrology.

关键词： squeezing of quantum noise cavity magnonics magnomechanics

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Two New Species of the Genus Gloeosporium from China Ⅰ

Two New Species of the Genus Gloeosporium from China Ⅰ

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中国植物病理学会2011年学术年会

作者： ZHANG Tao~1 LAN jian-qiang~3 GONG li-wei~1 TZEAN Shian-ahong~2 WU Jia~3 ZHANG Zhong-yi~3 (1.Kunming Research Institute of Edlible Fungi,Kunming 650223 2.Department of Plant Pathology,Taiwan University,Taibei 10617 3.Faculty of Plant Protection,Yunnan Agricultural University,Kunming,Yunnan 650201)

＜正＞Two new species of Gloeosporium are reported:Gloeosporium fici-septicae Sawada ex *** ＆ *** and Gloeosporium blumeae Sawada ex ***,*** ＆ S.-*** specimen is collected fromTaipei ＆ Luyeh, Taitung,*** are deposi... 详细信息

关键词： Gloeosporium Desm.& Mont new species identification

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A versatile electrostatic trap with open optical access

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Frontiers of physics 2018年第2期13卷 51-57页

作者： Sheng-qiang li jian-Ping Yin School of New Energy and Electronic Engineering Yancheng Teachers University Yancheng 224007 China State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 China

A versatile electrostatic trap with open optical access for cold polar molecules in weak-field-seeking state is proposed in this paper. The trap is composed of a pair of disk electrodes and a hexapole. With the help of a finite element software, the spatial distribution of the electrostatic field is calculated. The results indicate that a three-dimensional closed electrostatic trap is formed. Taking NDa molecules as an example, the dynamic process of loading and trapping is simulated. The results show that when the velocity of the molecular beam is 10 m/s and the loading time is 0.9964 ms, the maximum loading efficiency reaches 94.25% and the temperature of the trapped molecules reaches about 30.3 inK. A single well can be split into two wells, which is of significant importance to the precision measurement and interference of matter waves. This scheme, in addition, can be further miniaturized to construct one-dimensional, two-dimensional, and three-dimensional spatial electrostatic lattices.

关键词： atomic and molecular physics electrostatic trap cold polar molecules finite elementanalysis

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Evaluation of renoprotective effect of Chinese chive extracts on adenine-induced chronic renal failure

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Food Science and Human Wellness 2018年第4期7卷 260-265页

作者： qiang-Ming li jian-Ping Luo li-Hua Pan Xue-qiang Zha School of Food Science and Engineering Hefei University of TechnologyHefei230009People’s Republic of China

The renoprotective effects of Chinese chive water and ethanol extracts(CCWE and CCEE)on adenineinduced chronic renal failure(CRF)mice were evaluated in this *** showed that the renal pathological damages and the enhancement of serum creatinine and blood urea nitrogen of CRF mice could be significantly alleviated by the treatment of CCWE,but not *** the concentration of CCWE reached 200 mg/kg/day,the area of renal pathological damage was decreased to the 48.1%of model group,and the levels of serum creatinine and blood urea nitrogen were decreased to the 87.7%and 83.9%of model group,***,it could be found that renal oxidative stress and inflammation of CRF mice were remarkably inhibited by *** results indicated CCWE could improve the kidney function of CRF mice via enhancing antioxidant ability and inhibiting inflammation,and was the main renoprotective fraction of Chinese chive.

关键词： Chinese chive Renoprotection Chronic renal failure

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Aerodynamic design on high-speed trains

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Acta Mechanica Sinica 2016年第2期32卷 215-232页

作者： San-San Ding qiang li Ai-Qin Tian jian Du Jia-li liu School of Mechanical Electronic and Control EngineeringBeijing Jiaotong University CSR Qingdao Sifang Locomotive & Rolling Stock Co. Ltd.

Compared with the traditional train,the operational speed of the high-speed train has largely improved,and thedynamicenvironmentofthetrainhaschangedfromoneof mechanical domination to one of aerodynamic *** aerodynamic problem has become the key technological challenge of high-speed trains and significantl affects the economy,environment,safety,and *** this paper,the relationships among the aerodynamic design principle,aerodynamic performance indexes,and design variables are firs studied,and the research methods of train aerodynamics are proposed,including numerical simulation,a reducedscale test,and a full-scale *** schemes of train aerodynamics involve the optimization design of the streamlined head and the smooth design of the body *** design of the streamlined head includes conception design,project design,numerical simulation,and a reduced-scale *** design of the body surface is mainly used for the key parts,such as electric-current collecting system,wheel truck compartment,and *** aerodynamic design method established in this paper has been successfully applied to various high-speed trains（CRH380A,CRH380 AM,CRH6,CRH2 G,and the Standard electric multiple unit（EMU）） that have met expected design *** research results can provide an effective guideline for the aerodynamic design of high-speed trains.

关键词： High-speed train Aerodynamic design Optimization design Smooth design

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Densification and Structure Evolution of ZrB_(2)-ZrO_(2) Composites Prepared by Plasma Activated Sintering using ZrB2@ZrO2 Powder

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Journal of Wuhan University of Technology(Materials Science) 2021年第2期36卷 215-222页

作者： YANG Haitao ZHANG jian li Junguo SHEN qiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

The densification and the structure evolution of the plasma activated sintered(PAS sintered)ZrB_(2)-ZrO_(2) composite via the ZrO_(2)-coated ZrB_(2) powder(ZrB_(2)@ZrO_(2))prepared by in situ passivation method were *** composition and microstructure were characterized by XRD,Raman,SEM,and EDS *** coated powder has excellent sintering *** relative density of the composite reaches above 90%at 1200℃,and the main sintering process occurs between ZrO_(2) *** at above 1500℃,the relative density reaches above 95%and the main sintering process occurs between ZrB_(2) and ZrO_(2) *** the increase of ZrO_(2) coating content,the structure of the sintered body changes from ZrB_(2) continuous network structure to island *** the content is 20%,an island structure is *** the ZrO_(2) content further causes the overheating of ZrO_(2).Thus,the best sintering performance reaches when the coating content is 20wt%.

关键词： ZrB2 ZrO2 coating content densification structure evolution

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富血小板血浆干预细胞自噬和凋亡治疗骨关节炎

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中国组织工程研究 2025年第13期29卷 2802-2811页

作者：王耀敏张克凡王德宁任强李健石辉滨州医学院附属医院山东省滨州市256600 滨州医学院山东省滨州市264003

背景:富血小板血浆通过调节自噬和凋亡细胞因子、信号转导通路等方面在干预骨关节炎发展过程中发挥了重要作用。目的:总结近年来富血小板血浆在骨关节炎中发挥作用的细胞因子与信号通路,以及与软骨细胞自噬和凋亡的相关性,为未来治疗骨... 详细信息

背景:富血小板血浆通过调节自噬和凋亡细胞因子、信号转导通路等方面在干预骨关节炎发展过程中发挥了重要作用。目的:总结近年来富血小板血浆在骨关节炎中发挥作用的细胞因子与信号通路,以及与软骨细胞自噬和凋亡的相关性,为未来治疗骨关节炎提供有效的靶点。方法:在中国知网、万方数据库、维普、PubMed、Web of Science和Medline数据库进行文献检索,以“富血小板血浆,软骨细胞,细胞凋亡,细胞自噬,骨关节炎,细胞因子,信号通路”作为中文检索词,以“platelet-rich plasma,chondrocyte,apoptosis,autophagy,osteoarthritis,cytokines,signaling pathway”作为英文检索词,对最终纳入的66篇文献进行了系统性的总结和归纳。结果与结论:现有研究显示富血小板血浆能够通过多种途径促进软骨修复,助力骨组织愈合,其主要分为3个方面:①富血小板血浆参与调控了微自噬小体的延伸、闭合与成熟,并在特定条件下促进软骨细胞巨自噬和分子伴侣介导的细胞自噬,促进LC3Ⅱ/Ⅰ、Beclin1等自噬相关因子的表达,抑制P62/SQSTM1的表达,目前尚未有明确的研究直接探讨富血小板血浆对热休克蛋白的具体作用,未来在这一领域值得进一步研究;②富血小板血浆释放的各类生长因子抑制促凋亡因子Caspase、白细胞介素1β、肿瘤坏死因子α的表达,促进抗凋亡因子Bcl-2的表达,阻止软骨细胞凋亡和变性;③富血小板血浆通过激活PI3K/AKT/mTOR信号通路、NF-κB信号转导通路、死亡受体通路、线粒体应激通路等途径,抑制Bax和Caspase的表达,阻止细胞色素c的释放,从而抑制软骨细胞死亡和坏死性凋亡。综合而言,富血小板血浆促进软骨修复、支持软骨再生及发挥抗炎作用,其在软骨细胞中实现生物效应通常依赖于细胞自噬和凋亡相关细胞因子及信号通路的调控。

关键词：富血小板血浆软骨细胞细胞凋亡细胞自噬骨关节炎细胞因子信号通路

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