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论于越的族源

浙江社会科学 2008年第10期 88-93页

作者：叶岗绍兴文理学院人文学院教授绍兴312000

有关于越的族源,学术界有三种代表性观点:(1)于越是汉族祖先从西南出发的外迁与驻留;(2)"越为夏裔"说;(3)"越为土著"说。文章对这些观点作了详尽的辨析,阐述了于越的族源问题。认为相对于理论探讨和文献记载,新近发现的考古材料更能说... 详细信息

有关于越的族源,学术界有三种代表性观点:(1)于越是汉族祖先从西南出发的外迁与驻留;(2)"越为夏裔"说;(3)"越为土著"说。文章对这些观点作了详尽的辨析,阐述了于越的族源问题。认为相对于理论探讨和文献记载,新近发现的考古材料更能说明问题,因此倾向于第三种观点。

关键词：越文化于越族源

Ginsenoside Rg3 Promotes the Survival and Migration of Trophoblast Cells in a Rat Model of Gestational Hypertension by Regulating miR-100a/Insulin Growth Factor-2 Axis

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World Journal of Traditional Chinese Medicine 2024年第1期10卷 65-74页

作者： Xiu-Mei Fan Li Yang gang Zhao Sen-ye Huo Yan Gao Department of Obstetrics Xingtai Third HospitalXingtaiChina Department of Obstetrics Xingtai Maternal and Child Health Care HospitalXingtaiChina

Objective:Preeclampsia(PE)is a common complication during ***-100a is expressed in the placenta and regulates the survival and development of placental *** growth factor-2(IGF-2)may serve as its downstream *** study investigated the protective mechanisms of ginsenoside Rg3 against PE in rat *** and Methods:LPS-induced rat PE models were suitable for intravenous administration of the highly expressed miR-100a ginsenoside Rg3 lentiviral *** trophoblasts were cultured in vitro for JEG-3,and PE cell models were *** vivo effects on tumor growth and apoptosis were *** Rg3 was treated with different concentrations of shRNA,miR-100a analogs,inhibitors,or *** and the expression of autophagy-related proteins were *** activity and migration were determined using Cell Counting Kit-8 and Transwell *** drugs strongly inhibited trophoblasts under normal conditions with some synergy between ***-luciferase return assay confirmed the binding affinity of miR-100a for ***:In response to Rg3,autophagy and the expression of autophagy-related proteins LC3-I/II,Beclin1,and SQSTM1 were reduced in PE rat placental ***3 inhibited autophagy in JEG-3 cells and promoted JEG-3 survival and migration in a concentration-dependent ***-100a upregulated PE *** results suggested that autophagy was a vital signaling ***3 intervention inhibited miR-100a expression and miR-100a downregulated IGF-2 expression in placental tissues and promoted autophagy,thereby inhibiting JEG-3cell survival and *** rats,Rg3 inhibited PE development by regulating the activity of the miR-100a-IGF-2 signaling ***:Ginsenoside Rg3 positively regulates the miR-100a-IGF-2 axis and protects PE rats by inhibiting trophoblastic autophagy and promoting trophoblastic cell survival and migration.

关键词： Ginsenoside Rg3 inflammatory response miR-100a/insulin growth factor-2 axis preeclampsia pregnancy-induced hypertension

A new deformable cable for rock support in high stress tunnel:Steel pipe shrinkable energy-absorbing cable

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International Journal of Mining Science and Technology 2024年第8期34卷 1083-1093页

作者： Xuezhen Wu Mingzhu Zhao Qing ye Yujing Jiang Tao Deng Hanfang Zheng gang Wang Zhenchang Guan College of Civil Engineering Fuzhou UniversityFuzhou 350108China School of Engineering Nagasaki UniversityNagasaki 852-8521Japan Key Laboratory of Underground Engineering Fujian University of TechnologyFuzhou 350118China

High stress in surrounding rock will lead to serious problems,e.g.,rock burst in hard rock and large deformation in soft *** applied support system under high in-situ stress conditions should be able to carry high load and also accommodate large deformation without experiencing severe *** this paper,a specially designed energy-absorbing component for rock bolt and cable that can solve the above problems was *** energy-absorbing component can provide support resistance by plastic deformation of the metal including constraint annulus and compression *** practical engineering,two forms were *** was installed in the surrounding rock by reaming,and the other was installed directly outside the surrounding *** the dilation of the surrounding rock,the relative displacement of constraint annulus and compression pipe occurs,resulting in deformation *** resistance is transmitted to the rock bolt or cable,providing support *** lab test and numerical simulation showed that the energy-absorbing component can perfectly achieve the large deformation effect,the deformation amount is as high as 694 mm,and the bearing capacity is stable at 367 *** field application tests were carried out in the mining roadway of Xinjulong coal mine,and the results showed that the new type of cable can ensure itself not to break under the condition of large deformation of the surrounding *** energy-absorbing component has the superiorities of performing large constant resistance and controllable deformation to effectively control the unpredictable disasters such as large deformation in soft rock and rock burst in hard rock encountered in deep strata.

关键词： Energy-absorbing cable Numerical simulation Lab test Load capacity Ultimate displacement

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环保PVF碳氮硫硅钢结构防火涂料的研究

非金属矿 2024年第4期47卷 45-48页

作者：邹威亮邓跃全叶刚曾洁成静李恒高川林何志强西南科技大学材料与化学学院四川绵阳621010 四川瑞特消防科技有限公司四川眉山620000

为降低防火涂料的成本,实现绿色环保,本试验制备了一种环保聚乙烯醇缩甲醛(PVF)及其钢结构防火涂料,研究了PVF加入量对防火涂料理化性能和防火性能的影响,并分析了其耐火机理。结果表明,当聚乙烯醇与甲醛质量比为5.7∶3.5时,加入2%左右... 详细信息

为降低防火涂料的成本,实现绿色环保,本试验制备了一种环保聚乙烯醇缩甲醛(PVF)及其钢结构防火涂料,研究了PVF加入量对防火涂料理化性能和防火性能的影响,并分析了其耐火机理。结果表明,当聚乙烯醇与甲醛质量比为5.7∶3.5时,加入2%左右尿素和0.2%左右过氧化氢制备环保PVF,甲醛含量符合GB 18582—2020的规定;PVF与涂层的黏结强度呈正相关,能增强涂层的黏结强度,对涂层的基本性能无影响,对涂层耐火性能有显著影响。涂层钢板平均温度随PVF加入量的增加呈先降低后增加趋势,加入7%~13%的PVF,涂层发泡厚度大于3.3cm,涂层背面温度小于300℃,PVF加入量为10%时,涂层背面温度温度最低,为220℃。PVF在297.3℃左右发生热解,相变结束时残碳量约为23.8%,两者受热均产生大量阻燃气体,在涂层中主要起气源和少量碳源作用,具有较好的黏结性和成膜性能。

关键词： PVF 钢结构防火涂料环保耐火性能成膜性能

Vaccine booster efficiently inhibits entry of SARS-CoV-2 omicron variant

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Cellular & Molecular Immunology 2022年第3期19卷 445-446页

作者： Wei Zhang Linfen Huang gang ye Qibin Geng Nwando Ikeogu Morgan Harris Gayathri Dileepan Kristina Burrack Lanying Du Anne Frosch Fang Li Department of Veterinary and Biomedical Sciences University of MinnesotaSaint PaulMNUSA Center for Coronavirus Research University of MinnesotaSaint PaulMNUSA Department of Medicine University of MinnesotaMinneapolisMNUSA Hennepin Healthcare Department of Medicine Hennepin Healthcare Research InstituteMinneapolisMNUSA Institute for Biomedical Sciences Georgia State UniversityAtlantaGAUSA

The newly emerged omicron strain of SARS-CoV-2 is spreading fast globally,replacing the previously dominant delta strain in many parts of the world[1].Compared to the early prototypic strains,the delta strain evades the human immune system more easily,causing many breakthrough infections in vaccinated people[2].It is imperative to understand in a timely fashion whether the omicron strain escapes immune *** information will be critical for public health measures.

关键词： strain breakthrough globally

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序言

核化学与放射化学 2022年第3期44卷 I0001-I0003页

作者：叶钢清华大学核能与新能源技术研究院

天然铀资源是核工业不可或缺的战略资源,不仅关乎核能产业的可持续发展,也是国家核威慑力量的重要保障。随着我国“双碳”减排目标的提出,核能作为清洁能源迎来了快速发展的历史机遇。然而,我国陆地铀资源贫乏,对外依存度常年维持在70%... 详细信息

天然铀资源是核工业不可或缺的战略资源,不仅关乎核能产业的可持续发展,也是国家核威慑力量的重要保障。随着我国“双碳”减排目标的提出,核能作为清洁能源迎来了快速发展的历史机遇。然而,我国陆地铀资源贫乏,对外依存度常年维持在70%以上,且我国的多数铀矿品位低,开采成本高于130美元/kg的低品位铀矿占总量的60%以上。因此,发展非常规铀资源提取技术对于缓解我国铀资源困境、补充完善铀资源供应体系具有重要价值。

关键词：对外依存度核威慑力量铀资源可持续发展供应体系开采成本天然铀减排目标

Stability constants of Sb^5+with Cl−and thermodynamics of Sb−S−Cl−H2O system involving complex behavior of Sb with Cl

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Transactions of Nonferrous Metals Society of China 2020年第12期30卷 3379-3389页

作者： gang LI Yun-tao XIN Xiao-dong Lü Qing-hua TIAN Kang YAN Long-gang ye College of Materials Science and Engineering Chongqing UniversityChongqing 400044China School of Metallurgy and Environment Central South UniversityChangsha 410083China School of Metallurgical Engineering Jiangxi University of Science and TechnologyGanzhou 341000China College of Metallurgy and Material Engineering Hunan University of TechnologyZhuzhou 412007China

The stability constants of Sb^5+with Cl−as well as thermodynamics of the Sb−S−Cl−H2O system were *** stability constants of Sb5+with Cl−were obtained by theoretical calculations of the absorbance of a Sb5+-containing solution at different Cl^−concentrations,which was detected by spectrophotometric analysis at certain wavelengths of light(380 nm).The logarithmic values versus 10 of stability constants of Sb^5+with Cl−were 1.795,3.150,4.191,4.955,5.427 and 5.511,respectively,and partly filled the data gaps in the hydrometallurgy of *** presence and distribution of pentavalent antimony compounds under different conditions were analyzed based on equilibrium *** equilibrium calculations were performed for Sb−S−Cl−H2O system,which included the complex behavior of Sb with Cl,and the equilibrium equations of related reactions in this system were integrated into the potential−pH diagram.

关键词： complex behavior stability constant thermodynamics Sb−S−Cl−H2O system

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改性淀粉基碳氮硫硅环钢结构防火涂料的研究

非金属矿 2024年第4期47卷 49-52,64页

作者：谢婧宁邓跃全叶刚谢金凤程琳惠成静高川林李恒西南科技大学材料与化学学院四川绵阳621010 四川瑞特消防科技有限公司四川眉山620000

本试验对淀粉进行改性,制备了改性淀粉基碳氮硫硅环保钢结构防火涂料,探究了改性淀粉加入量对涂料性能的影响,并对其进行阻燃机理分析。结果表明,改性淀粉的加入能显著增强涂层黏结性能,对其余基本性能无影响,符合GB 14907—2018的规定... 详细信息

本试验对淀粉进行改性,制备了改性淀粉基碳氮硫硅环保钢结构防火涂料,探究了改性淀粉加入量对涂料性能的影响,并对其进行阻燃机理分析。结果表明,改性淀粉的加入能显著增强涂层黏结性能,对其余基本性能无影响,符合GB 14907—2018的规定;改性淀粉能显著提高涂层发泡性能和耐火性能,改性淀粉加入量为2%~6%时,涂层发泡厚度大于3.0 cm,涂层背面温度小于183.6℃;改性淀粉在受热时形成熔融状态钠醚盐,具有较好传质传热作用,有利于气源物质同步气化,与碳源炭化协调一致,改性淀粉在289.1℃左右时开始分解,相变结束后残碳量约为36.5%,在涂层中主要起碳源和小部分气源作用,且能改善涂层的成膜性能,降低成本,具有较好应用前景。

关键词：改性淀粉碳氮硫硅环钢结构防火涂料发泡性能耐火性能

Polar interaction of polymer host-solvent enables stable solid electrolyte interphase in composite lithium metal anodes

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Journal of Energy Chemistry 2022年第1期31卷 172-178,I0006页

作者： Peng Shi Ze-Yu Liu Xue-Qiang Zhang Xiang Chen Nan Yao Jin Xie Cheng-Bin Jin Ying-Xin Zhan gang ye Jia-Qi Huang Stephens IfanE L Titirici Maria-Magdalena Qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China Collaborative Innovation Center of Advanced Nuclear Energy Technology Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing 100084China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Shanxi Research Institute for Clean Energy Tsinghua UniversityTaiyuan 030032ShanxiChina Department of Materials Molecular Sciences Research HubImperial College LondonLondon W12 OBZUK epartment of Chemical Engineering Imperial College LondonSouth Kensington CampusLondon SW72AZUK

The lithium(Li) metal anode is an integral component in an emerging high-energy-density rechargeable battery.A composite Li anode with a three-dimensional(3 D) host exhibits unique advantages in suppressing Li dendrites and maintaining dimensional ***,the fundamental understanding and regulation of solid electrolyte interphase(SEI),which directly dictates the behavior of Li plating/stripping,are rarely researched in composite Li metal ***,the interaction between a polar polymer host and solvent molecules was proposed as an emerging but effective strategy to enable a stable SEI and a uniform Li deposition in a working *** carbonate molecules in electrolytes are enriched in the vicinity of a polar polyacrylonitrile(PAN) host due to a strong dipole-dipole interaction,resulting in a LiF-rich SEI on Li metal to improve the uniformity of Li deposition.A composite Li anode with a PAN host delivers 145 cycles compared with 90 cycles when a non-polar host is ***,60 cycles are demonstrated in a 1:0 Ah pouch cell without external *** work provides a fresh guidance for designing practical composite Li anodes by unraveling the vital role of the synergy between a 3 D host and solvent molecules for regulating a robust SEI.

关键词： Lithium metal Polar interaction Solid electrolyte interphase Lithium plating Composite anode