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与太古宙脉状金矿床伴生的蚀变带中痕量元素的活动性

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华北地质 1985年第4期 67-77页

作者： j.n.Ludden R.Daicneault F.Robert R.P.Taylor 李俊健

引言在太古宙的环境中金矿化流体的来源仍是个谜。在变形和变质作用期间由于流体的活动性,模式从变质流溶的释放和聚集到金属的侧向分泌之间变动。象 Kerrich 和Hodder(1982)的例证,脉状金矿床(仅金),相对贵金属而言,它们贱金属含量低... 详细信息

引言在太古宙的环境中金矿化流体的来源仍是个谜。在变形和变质作用期间由于流体的活动性,模式从变质流溶的释放和聚集到金属的侧向分泌之间变动。象 Kerrich 和Hodder(1982)的例证,脉状金矿床(仅金),相对贵金属而言,它们贱金属含量低明显不同于太古宙块状硫化物矿床。这些脉状金矿床通常是在太古宙的变质火山岩地体中,特别是,在变质火山岩带的变质和构造历史中表现为晚期产物。形成金矿床的可靠

关键词：蚀变带稀土元素斑岩电气石富集 ⅢB族元素侵入岩宝石长石质微量元素痕量元素太古宙太古代前寒武纪活动性

Economics of nitrogen Use in Cereal Systems in South and East Asia

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journal of Agricultural Science and Technology 2011年第1期5卷 1-13页

作者： X. Y. Li j. Timsina j. Dixon Impacts Targeting and Assessment Unit International Maize and Wheat Improvement Center （CIMMTT） apdo postal 6-64106600 Mexico DF Mexieo International Rice Research Institute （IRRl）-Bangladesh Office Banani DOHS 1206 Dhaka Bangladesh Australian Centre for International Agricultural Research （A CIAR） GPO Box 15 71 Canberra ACT 2601 Australia

A literature survey and focused interviews with experienced agronomists and socio-economists from south, east, and southeast Asian countries were conducted to determine physical and economic relationships of cereal yields and n use, using partial factor productivity （PFP） and nitrogen （n） response functions, while considering the impacts of （n） and crop grain prices. The data were drawn from FAOSTAT, World Bank, and survey results from those countries. Rice has the greatest PFP-n （70 kg grain kg^-1 n）, wheat a moderate （57 kg grain kg^-1 n）, and maize the lowest PFP-n （52 kg grain kg^-1 n） at current application levels. At potential optimal n use rates, estimates for PFP-n were 26 kg grain kg^-1 n for maize, 25 kg for rice and 16 kg for wheat. Assuming a constant average PFP-n （30 kg grain kg^-1 n） for these cereals, it is estimated that 13 Mt n would be needed to meet a projected food demand by 2020 assuming no use of other additional inputs. Assuming a 20% increase in nitrogen use efficiency （nUE） to 36 kg grain kgl n, 10.6 Mt would be needed to meet the food demand, implying an annual growth rate in n use of 1.25%. It is concluded that economically optimal n rates are relatively insensitive to changes in prices of n and cereal grain. Key interventions to improve sustainable food security include increasing n fertilizer use, improving nUE, and reducing environmental impacts.

关键词： nitrogen cereal system crop yield physical optimum economic optimum Asia.

Low serum neutralizing anti-SARS-CoV-2 S antibody levels in mildly affected COVID-19 convalescent patients revealed by two different detection methods

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Cellular & Molecular Immunology 2021年第4期18卷 936-944页

作者： Berislav Bosnjak Saskia Catherina Stein Stefanie Willenzon Anne Katrin Cordes Wolfram Puppe Gunter Bernhardt Inga Ravens Christiane Ritter Christian R.Schultze-Florey nina Godecke jorg Martens Hannah Kleine-Weber Markus Hoffmann Anne Cossmann Mustafa Yilmaz Isabelle Pink Marius M.Hoeper Georg M.n.Behrens Stefan Pohlm ann Rainer Blasczyk Thomas F.Schulz Reinhold Forster Institute of Immunology Hannover Medical SchoolHannoverGermany lnstitute of Virology Hannover Medical SchoolHannoverGermany Department of Hematology HemostasisOncology and Stem Cell TransplantationHannover Medical SchoolHannoverGermany Institute of Transfusion Medicine and Transplant Engineering Hannover Medical SchoolHannoverGermany German Primate Center-Leibniz Institute for Primate Research GottingenGermany Faculty of Biology and Psychology University GottingenGottingenGermany Department of Rheum atology and Immunology Hannover Medical SchoolHannoverGermany Public Health Department HannoverGermany Department of Pneumology and German Centre of Lung Research(DZL) Hannover Medical SchoolHannoverGermany German Center for Infection Research(DZIF) partner site Hannover-BraunschweigHannoverGermany Cluster of Excellence RESIST(EXC 2155) Hannover Medical SchoolHannoverGermany

neutralizing antibodies targeting the receptor-binding domain(RBD)of the SARS-CoV-2 spike(S)block severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)entry into cells via surface-expressed angiotensin-converting enzyme 2(ACE2).We used a surrogate virus neutralization test(sVnT)and SARS-CoV-2 S protein-pseudotyped vesicular stomatitis virus(VSV)vector-based neutralization assay(pVnT)to assess the degree to which serum antibodies from coronavirus disease 2019(COVID-19)convalescent patients interfere with the binding of SARS-CoV-2 S to *** tests revealed neutralizing anti-SARS-CoV-2 S antibodies in the sera of ~90% of mildly and 100% of severely affected COVID-19 convalescent ***,sVnT and pVnT results correlated strongly with each other and to the levels of anti-SARS-CoV-2 S1 IgG and IgA ***,levels of neutralizing antibodies correlated with the duration and severity of clinical symptoms but not with patient *** to pVnT,sVnT is less sophisticated and does not require any biosafety *** this assay is also much faster and cheaper,sVnT will not only be important for evaluating the prevalence of neutralizing antibodies in a population but also for identifying promising plasma donors for successful passive antibody therapy.

关键词： COVID-19 SARS-CoV-2 neutralizing antibody Serum ELISA

固体废物跨境流动影响因素研究——以向中国流动为例

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北京理工大学学报（社会科学版） 2016年第6期18卷 47-53页

作者：詹金良北京理工大学管理与经济学院北京100081

进口可用于原材料的固体废物,能够缓解发展中国家原材料相对不足的问题.但是未经筛选处理的固体废物跨境转移,对发展中国家（如中国）会造成次生环境污染.选择中国限制类进口目录和自动许可类进口目录中的电子废旧产品（E类）、废塑料（... 详细信息

进口可用于原材料的固体废物,能够缓解发展中国家原材料相对不足的问题.但是未经筛选处理的固体废物跨境转移,对发展中国家（如中国）会造成次生环境污染.选择中国限制类进口目录和自动许可类进口目录中的电子废旧产品（E类）、废塑料（j类）两大类货物为研究对象,利用12个发达国家和地区自2004-2013年向中国出口固体废物的海关贸易统计数据,通过贸易引力模型研究发达国家固体废物向外输出的主要影响因素以及固体废物输出的新变化,为国家对进口固体废物监管提供相关建议.通过研究分析发现,影响发达国家固体废物输出的因素除了有输出国和目的国的经济规模、人口规模,还发现CO2排放量和人均耗电量以及贸易便利化条件等因素.同时研究发现,这些发达国家的固体废物输出更倾向于人口数量多或人口增长速度快的发展中国家.

关键词：固体废物跨境转移贸易流向引力模型

Synthesis and evaluation as CO2 chemisorbent of the Li5(Al1-xFex)O4 solid solution materials:Effect of oxygen addition

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journal of Energy Chemistry 2017年第5期26卷 948-955页

作者： Paulina Olavarría Elizabeth Vera Enrique j.Lima Heriberto Pfeiffer Laboratorio de Fisicoquímica y Reactividad de Superficies(LaFReS) Instituto de Investigaciones en MaterialesUniversidad Nacional Autońoma de MexicoCircuito exterior s/nCd.UniversitariaDel.Coyoacan C.P.04510Ciudad de MéxicoMexico

Pentalithium aluminate（β-LiAlO） and the corresponding iron-containing solid solution(Li(AlFe)O)were synthetized by solid-state reaction. All the samples were characterized structural and microstructurally by X-ray diffraction, solid-state nuclear magnetic resonance, scanning electron microscopy, nadsorption-desorption and temperature-programmed desorption of CO. Results showed that 30 mol% of iron can be incorporated into the β-LiAlOcrystalline structure at aluminum positions. Moreover, iron addition induced morphological and superficial reactivity variations. Li(AlFe)Osamples chemisorbed CObetween 200 and 700 °C, where the superficial chemisorption presented the highest enhancement,in comparison to β-LiAlO. Additionally, Li(AlFe)Osamples sintered at higher temperatures thanβ-LiAlO. Isothermal COchemisorption experiments of β-LiAlOand Li(AlFe)Owere fitted to a first order reaction model, corroborating that iron enhances the COchemisorption, kinetically. When oxygen was added to the gas flow, COchemisorption process was mainly enhanced between 400 and 600 °C for the Li(AlFe)Osample in comparison to β-LiAlO. Hence, Li(AlFe)Osolid solution presented an enhanced COchemisorption process, in the presence and absence of oxygen, in comparison to β-LiAlO.

关键词： Lithium aluminate CO2 chemisorption Solid solution Thermogravimetry

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应用石油地球化学找油(加拿大西部盆地的例子)

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地球与环境 1977年第6期 42-47页

作者： n.j.L.贝利 ,C.R.埃文斯 ,C.W.D.米尔纳 ,了木

引言在勘探过程的早期阶段,石油地球化学能够帮助预测盆地中各种类型烃的分布。在地质上不复杂的加拿大西部盆地,是表明地球化学实际应用于烃类勘探的一个极好的地区。

关键词：盆地威利斯顿地质构造生油岩烃源岩石油聚集原油石油密西西比系石炭纪储油层油层矿物燃料矿床烃类凝析气天然气变质作用地质作用地层阿尔伯达埋藏深度地球化学地球科学加拿大北美洲

脑膜炎球菌微小蛋白脂质体:一种促进肽和蛋白抗原产生CTL应答的有效佐剂

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国际生物制品学杂志 2006年第6期29卷 278-279页

作者： Mesa C[英国] de León[英国] j．Fernandez LE[英国] 李媛媛（校）徐静（校）

开发调节天然免疫和获得性免疫，尤其是细胞毒性T淋巴细胞（CTL）应答的有效佐剂，已成为当前治疗性肿瘤疫苗研究的热点。古巴哈瓦那分子免疫学中心的Mesa等通过疏水作用将GM3神经节苷脂与脑膜炎球菌外膜囊结合，形成微小蛋白脂质体（V... 详细信息

开发调节天然免疫和获得性免疫，尤其是细胞毒性T淋巴细胞（CTL）应答的有效佐剂，已成为当前治疗性肿瘤疫苗研究的热点。古巴哈瓦那分子免疫学中心的Mesa等通过疏水作用将GM3神经节苷脂与脑膜炎球菌外膜囊结合，形成微小蛋白脂质体（VSSP）。以前的研究已明确，VSSP能增强对外源蛋白的抗体和细胞免疫应答。此项研究旨在评估VSSP对全细胞肿瘤疫苗的佐剂效应。

关键词： CTL应答脑膜炎球菌蛋白抗原脂质体佐剂细胞毒性T淋巴细胞细胞免疫应答肿瘤疫苗

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Uniformly dispersed FeOx atomic clusters by pulsed arc plasma deposition： An efficient electrocatalyst for improving the performance of Li-O2 battery

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nano Research 2016年第7期9卷 1913-1920页

作者： Xiangyi Luo jun Lu Evan Sohm Lu Ma Tianpin Wu jianguo Wen Dantong Qiu YunKai Xu Yang Ren Dean j. Miller Khalil Amine Material Sciences Division Argonne National Laboratory Argonne IL 60439 USA Chemical Sciences and Engineering Division Argonne National Laboratory Argonne IL 60439 USA ULVAC Technologies Inc. Methuen MA 01844 USA Center for n anoscale Materials Nanoscience and Technology Argonne National Laboratory Argonne IL 60439 USA Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA Center for nanoscale Materials Nanoscience and Technology Argonne Notional Laboratory Argonne IL 60439 USA

The present study explored a new method to improve the catalytic activity of non-precious metals, especially in electrochemical reactions. Highly ionized Fe plasma produced by arc discharge was uniformly deposited on a porous carbon substrate and formed atomic clusters on the carbon surface. The as-prepared FeO~/C material was tested as a cathode material in a rechargeable Li-02 battery under different current rates. The results showed significant improvement in battery performance in terms of both cycle life and reaction rate. Furthermore, X-ray diffraction （XRD） and scanning electron microscopy （SEM） results showed that the as-prepared cathode material stabilized the cathode and reduced side reactions and that the current rate was a critical factor in the nucleation of the discharge products.

关键词： Li-O2 battery FeOx atomic cluster electrocatalyst pulsed arc plasmadeposition (APD)

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胰岛素的作用

胰岛素的作用