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不同温度下抗生素在施炭土中迁移规律的研究

河南科学 2024年第1期42卷 89-97页

作者：陈亮邢玉晟张林生河海大学土木与交通学院南京210098 西藏农牧学院西藏土木水利电力工程技术研究中心重点实验室西藏林芝860000

为了解不同温度下活性炭对土壤中抗生素迁移的影响,基于土柱试验和数值模拟研究了盐酸土霉素在施炭土中的纵向迁移机制.土柱试验结果表明,在土壤中加入低含量的活性炭可以增强土壤对抗生素的吸附作用,抑制抗生素在土壤中的迁移.数值模... 详细信息

为了解不同温度下活性炭对土壤中抗生素迁移的影响,基于土柱试验和数值模拟研究了盐酸土霉素在施炭土中的纵向迁移机制.土柱试验结果表明,在土壤中加入低含量的活性炭可以增强土壤对抗生素的吸附作用,抑制抗生素在土壤中的迁移.数值模拟结果表明,土壤中加入的活性炭含量越大,施炭土的吸附分配系数越大,对抗生素的吸附能力越强,进而可有效降低抗生素在土壤中的迁移效率.最后基于理论计算值和实际反演值对施炭土的吸附分配系数进行了修正.

关键词：土壤迁移活性炭盐酸土霉素

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哺乳动物高尔基体的结构特点与功能

中国细胞生物学学报 2024年第1期46卷 63-78页

作者：邢雨生简彦楠张晓妍华中农业大学生物医学与健康学院武汉430070

在动物细胞中,高尔基体是内膜系统的物质运输中心,负责蛋白质和脂质的加工、修饰和分选,有序的高尔基体结构是维护其精确功能的基础。该文总结了哺乳动物细胞高尔基体独特堆叠和带状结构的分子基础,具体阐述了高尔基体结构在蛋白质糖基... 详细信息

在动物细胞中,高尔基体是内膜系统的物质运输中心,负责蛋白质和脂质的加工、修饰和分选,有序的高尔基体结构是维护其精确功能的基础。该文总结了哺乳动物细胞高尔基体独特堆叠和带状结构的分子基础,具体阐述了高尔基体结构在蛋白质糖基化修饰和分选中的作用,分析了高尔基体结构和功能紊乱与疾病之间的联系,并对近期热点研究的高尔基体参与的其他生理功能进行了介绍,为更深入地了解生理和病理条件下的高尔基体结构与功能提供了参考。

关键词：高尔基体糖基化修饰癌症细胞自噬非常规型蛋白分泌

Abstracts of Acta Geologica Sinica (Chinese Edition)Vol.75, No.2,2001

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Acta Geologica Sinica(English Edition) 2001年第2期75卷 233-238页

作者： YIN Chongyu Gao Linzhi xing yusheng Institute of Geology Chinese Academy of Geological Sciences

New Observations on Phosphatized Spheroidal Fossils in Sinian Doushantuoan Phosphorites in Weng’an, Guizhou Province YIN Chongyu, GAO Linzhi, xing yusheng Institute of Geology, Chinese Academy of Geological Sciences,... 详细信息

关键词： Chinese Edition)Vol.75 No.2,2001 Abstracts of Acta Geologica Sinica

Study on ethylene/1-hexene copolymerization catalyzed by α-diimine nickel catalysts with different ligands--Dedicated to Professor Xiuwen Han on the occasion of her 80th birthday

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Magnetic Resonance Letters 2021年第2期1卷 131-141页

作者： yusheng xing Haojie Yu Li Wang Nan Wang Lei Zhu Ruixue Liang Md Alim Uddin State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China

The structure of polyolefin has an important influence on its performance and ***/1-hexene copolymerization is one of the important ways to control the structure of the ***,research on the ethylene/1-hexene copolymerization catalyzed by nickel complexes with different steric ligands remains to be ***,three α-dimine nickel catalysts are used to study the ligand effect on catalytic performance in the ethylene/1-hexene *** activity,molecular weight,phase-transition temperature and branching density of the resultant copolymer are measured to evaluate the catalytic *** results indicate that the steric ligands could exert great effect on the *** for the chemical valence of Ni species,detailed EPR demonstrate that the presence of excess xo-catalyst can reduce Ni(Ⅱ)to the lower valence and affect the catalytic performance.

关键词： α-diimine nickel catalysts Copolymerization Microstructure EPR spectroscopy

The influence of silica on reaction rates and molecular hydrogen(H_(2))generation during olivine hydrothermal alteration

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Science China Earth Sciences 2024年第1期67卷 222-233页

作者： Ruifang HUANG Weidong SUN xing DING yusheng ZHAO Yibing LI Xiuqi SHANG CAS Key Laboratory of Ocean and Marginal Sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China SUSTech Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China Center of Deep Sea Research Institute of OceanologyChinese Academy of SciencesQingdao 266071China State Key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Institue of Geology Chinese Academy of Geological SciencesBeijing 100037China

Hydrothermal alteration of olivine greatly influences geodynamics and the recycling of volatiles(such as water and carbon)in subduction *** is an important component of geological fluids,and its influence on the hydrothermal alteration of olivine remains poorly *** this study,we performed experiments at 300–515℃ and 3.0 kbar(1 bar=10^(5)Pa)by reacting well homogenized mixtures of olivine and silica powders with saline solutions(0.5 mol L^(−1)NaCl).Silica greatly influences the reaction pathways,reaction rates,and molecular hydrogen(H_(2))formation during olivine hydrothermal *** experiments at 300℃ and 3.0 kbar with mixtures of olivine and 10 wt%silica,olivine was replaced by serpentine and *** proportions of serpentine and talc were determined according to standard curves based on infrared spectroscopy *** 6.5%serpentine and 12%talc were produced after an experimental duration of 7 days,which had no change after a longer period(14 days).Compared to the kinetics in silica-free systems,the rates of olivine hydrothermal alteration in experiments with 10 wt%silica are much *** overall reaction is:4.5Forsterite+5.5SiO_(2),aq+4H_(2)O=Serpentine+*** the addition of more silica(20 wt%and 40 wt%),olivine was transformed into *** rates of reaction were much faster,e.g.,for experiments with olivine and 20 wt%silica,43%of talc was produced after 14 days,which increased to 77%for experiments with 40 wt%silica over the same *** overall reaction is:3Forsterite+5SiO_(2),aq+2H_(2)O=*** experiments at 400–505℃ and 3.0 kbar,the promoting effect of silica on olivine hydrothermal alteration was also observed,which is closely associated with a decrease in Gibbs free energies of olivine hydrothermal *** 300℃ and 3.0 kbar,silica decreased H_(2)formed during olivine hydrothermal alteration by around an order of magnitude,resulting in an increase in oxygen *** on measured H_(2),we calibrated ox

关键词： Olivine hydrothermal alteration Silica Serpentinization Hydrogen Serpentine

Storm Deposits of the Sinian Zhangqu Formation in Northern Anhui——An Upward Shallowing Carbonate Sequence

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Acta Geologica Sinica(English Edition) 1990年第2期64卷 129-145,234-235页

作者： Qiao Xiufu xing yusheng Gao Linzhi Yin Chongyu Yue Zhao Liu Guizhi Institute of Geology, Chinese Academy of Geological Sciences, Beijing Jia Zhongpeng Gao Linzhi Chinese Academy of Geological Sciences Beijing

This paper studies. for the first time, the storm deposits of a carbonate sequence in the Sinian ZhangquFormation in northern Anhui. In the formation. a great number of calcareous trider sponge spicules were dis-covered in a distal storm turbidity sequence, which have provided further evidence for the correlation of theSinian Systems in North and South China from a view point of palaeontology.

关键词： Zhang Storm Deposits of the Sinian Zhangqu Formation in Northern Anhui An Upward Shallowing Carbonate Sequence

Ordovician Micropaleoplants in Kunming-luquan Region,Yunnan Province and Their Stratigraphical Significance

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Ordovician Micropaleoplants in Kunming-luquan Region,Yunnan ...

The Sinian——Cambrian Boundary of China (Summarized in English)

作者： Fang Xiaosi xing yusheng

Kunming-Luquan region is located at east Yunnan,the southwestern bor- der of Yangtze platform. It adjoins Niushoushan old land in the east and Kangdian old land in the west. In Ordovician, a sequence of clastic rocks were deposited here. They are, from bottom to top, Tangehi Fmo (Ot), Hongshiya Fro. (Oh) and Qiaojia Fro. (Oq).

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中国地质科学院地质研究所文集

中国地质科学院地质研究所文集 1984年 190-205页

作者： xing yusheng Ding Qixiu Luo Huilin He Tinggui and Wang Yangeng

The Sinian and Cambrian systems within the Yangtze stratigraphic pro- vince represent continuous deposits,and the strata above and below the bo- undary between them are rich in *** all the relevant boundary sections,the Meishucun section in Jinning County,Yunnan Province serves as the stratotype section for the Sinian-Cambrian boundary and also the Chinese Candidate for global stratotype section and point for Precambrian- Cambrian *** present paper,with the various charts and tables, elaborates on several typical Sinian-Cambrian boundary sections and the dis- tribution of fossils in them.

关键词： Cambrian The Sinian sections stratigraphic fossil strata charts assemblage Yangtze 地质研究所

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论俄罗斯经济发展模式的转变

俄罗斯东欧中亚研究 2009年第2期 33-39页

作者：邢玉升黑龙江大学东北亚经济研究中心博士哈尔滨150080

俄罗斯经过8年的持续经济增长,国力日益强大,但主要靠出口资源性产品换取外汇难以实现富民强国和民族振兴的战略目标。要保持社会经济可持续发展和应对日益激烈的国际竞争,普京政府适时明确地提出了经济发展模式的转换,即从资源型经济... 详细信息

俄罗斯经过8年的持续经济增长,国力日益强大,但主要靠出口资源性产品换取外汇难以实现富民强国和民族振兴的战略目标。要保持社会经济可持续发展和应对日益激烈的国际竞争,普京政府适时明确地提出了经济发展模式的转换,即从资源型经济转向创新型经济。为推动经济发展模式的转换,俄罗斯的经贸政策已开始进行重大调整,这种调整不但对俄罗斯的产业、经济和社会生活将产生重要影响,也将对俄罗斯的主要经贸伙伴产生很大冲击。俄罗斯的经济发展模式转型不但是一个漫长的过程,同时也面临着各种挑战和一定风险;如果普京政府仅仅提出了正确的经济发展方向和发展道路,而不能有效地解决经济发展模式转型过程中必然要遇到的各种难题,不但模式转换的目标不能实现,还要面临着不小的政治风险。

关键词：俄罗斯经济发展模式资源型经济创新型经济