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聚丙烯酰胺/蒙脱土复合材料结构研究

高分子材料科学与工程 2005年第4期21卷 201-204页

作者：高德玉 rb-海曼 b-托马斯李红刘宇光侯静郑辉倪靖滨黑龙江省科学院技术物理研究所黑龙江哈尔滨150086 德国弗莱堡矿业大学黑龙江大学黑龙江哈尔滨150080

用红外(FT-Ir),X射线衍射(XrD),核磁共振(NMr,13C,27Al,29Si)对电子束和紫外辐照制备的纳米结构聚丙烯酰胺/蒙脱土复合材料进行了表征。结果表明,丙烯酰胺以双分子层嵌入蒙脱土层间形成复合体,使蒙脱土层距由1.25nm增大到2.09nm。在复... 详细信息

用红外(FT-Ir),X射线衍射(XrD),核磁共振(NMr,13C,27Al,29Si)对电子束和紫外辐照制备的纳米结构聚丙烯酰胺/蒙脱土复合材料进行了表征。结果表明,丙烯酰胺以双分子层嵌入蒙脱土层间形成复合体,使蒙脱土层距由1.25nm增大到2.09nm。在复合材料中丙烯酰胺有三种形式:嵌入蒙脱土层间,通过氢键结合在蒙脱土表面和“自由”聚合物。

关键词：蒙脱土聚丙烯酰胺纳米复合材料

Single atom Cu-N-C catalysts for the electro-reduction of CO_(2) to CO assessed by rotating ring-disc electrode

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Journal of Energy Chemistry 2024年第1期88卷 169-182,I0004页

作者： S.Pérez-rodríguez M.Gutiérrez-roa C.Giménez-rubio D.ríos-ruiz P.Arévalo-Cid M.V.Martínez-Huerta A.Zitolo M.J.Lázaro D.Sebastián Instituto de Carboquímica(CSIC) Miguel Luesma Castán 450018 ZaragozaSpain Instituto de Catálisis y Petroleoquímica(CSIC) Marie Curie 228049 MadridSpain Synchrotron SOLEIL L’Orme des MerisiersDépartementale 12891190France

The electrochemical CO_(2) reduction reaction(CO_(2)rr) to controllable chemicals is considered as a promising pathway to store intermittent renewable energy. Herein, a set of catalysts based on copper-nitrogendoped carbon xerogel(Cu-N-C) are successfully developed varying the copper amount and the nature of the copper precursor, for the efficient CO_(2)rr. The electrocatalytic performance of Cu-N-C materials is assessed by a rotating ring-disc electrode(rrDE), technique still rarely explored for CO_(2)rr. For comparison, products are also characterized by online gas chromatography in a H-cell. The as-synthesized Cu-NC catalysts are found to be active and highly CO selective at low overpotentials(from -0.6 to -0.8 V ***) in 0.1 M KHCO_(3), while H_(2) from the competitive water reduction appears at larger overpotentials(-0.9 V vs. rHE). The optimum copper acetate-derived catalyst containing Cu-N_(4) moieties exhibits a CO_(2)-to-CO turnover frequency of 997 h^(-1) at -0.9 V vs. rHE with a H_(2)/CO ratio of 1.8. These results demonstrate that rrDE configuration can be used as a feasible approach for identifying electrolysis products from CO_(2)rr.

关键词： Cu-N-C Carbon xerogel rotating ring disc electrode Carbon dioxide reduction reaction Carbon monoxide

Low-Cost and biodegradable Thermoelectric Devices based on van der Waals Semiconductors on Paper Substrates

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Energy & Environmental Materials 2024年第1期7卷 201-206页

作者： Gulsum Ersu Carmen Munuera Federico J.Mompean Daniel Vaquero Jorge Quereda João Elias F.S.rodrigues Jose A.Alonso Eduardo Flores Jose r.Ares Isabel J.Ferrer Abdullah M.Al-Enizi Ayman Nafady Sruthi Kuriakose Joshua O.Island Andres Castellanos-Gomez Materials Science Factory Instituto de Ciencia de Materiales de Madrid(ICMM-CSIC)Madrid E-28049Spain Nanotechnology Group USAL-NanolabUnivesidad de SalamancaSalamanca Junta de Castilla y León 37007Spain GISC Departamento de Física de MaterialesUniversidad Complutense de MadridMadrid E-28040Spain Departamento de Física Aplicada Centro de Investigación y Estudios AvanzadosMérida 97310Mexico MIrE Group Departamento de Física de MaterialesUniversidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Physics and Astronomy University of Nevada Las VegasLas Vegas NV 89154USA

We present a method to fabricate handcrafted thermoelectric devices on standard office paper *** devices are based on thin films of WS_(2),Te,and bP(P-type semiconductors)and TiS_(3)and TiS_(2)(N-type semiconductors),deposited by simply rubbing powder of these materials against *** thermoelectric properties of these semiconducting films revealed maximum Seebeck coefficients of(+1.32±0.27)mV K^(-1)and(-0.82±0.15)mV K^(-1)for WS_(2)and TiS_(3),***,Peltier elements were fabricated by interconnecting the P-and N-type films with graphite electrodes.A thermopower value up to 6.11 mV K^(-1)was obtained when the Peltier element were constructed with three *** findings of this work show proof-of-concept devices to illustrate the potential application of semiconducting van der Waals materials in future thermoelectric power generation as well as temperature sensing for low-cost disposable electronic devices.

关键词： paper-based electronics Seebeck effect semiconductors thermoelectrics van der Waals materials

Alveolar echinococcosis localized in the liver, lung and brain

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Chinese Medical Journal 2008年第1期121卷 90-92页

作者： Seyit Mehmet Kayacan Sezai Vatansever suleyman Temiz bora Uslu Dilek Kayacan Vakur Akkaya Osman Erk bülent Saka Aytac Karadag Kultigin Turkmen Fatih Yakar Kerim Guler Istanbul University Istanbul Medical Faculty Department ofInternal Medicine |stanbul Turkey republic of Turkey Ministry of Health Umraniy.e Education andResearch Hospital Department of Neurology istanbul Turkey Istanbul University Istanbul Medical Faculty Department ofPulmonary Medicine Istanbul Turkey

Echinococcosis is a parasitic disease caused by the ,larval forms of echinococci. It has two main forms as the unilocular cystic form that is more commonly seen and caused by E. granulosus and the alveolar form that is rarely seen and caused by E. multilocularis. E. multilocularis usually contaminates from foxes and sometimes contaminates from domestic animals as dogs and cats to humans and usually affects the liver. Progression of alveolar echinococcosis is more severe and agressive. It can metastise to the lungs, brain and bones. We present a case of alveolar echinococcosis that was initially thought to be a lymphomatous infiltration but then determined to infect the liver, lung and brain in a patient with a large T-cell lymphoma.

关键词： alveolar echinococcosis lymphoma

C反应蛋白调节脂蛋白(a)相关冠心病风险:biomarCarE项目

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中华高血压杂志（中英文） 2024年第3期32卷 299-299页

作者： Arnold N blaum C Gobling A brunner FJ bay b Ferrario MM brambilla P Cesana G Leoni V Palmieri L Donfrancesco C Padro T Andersson J Jousilahti P Ojeda F Zeller T Linneberg A Soderberg S Iacoviello L Gianfagna F Sans S Veronesi G Thorand b Peters A Tunstall-Pedoe H Kee F Salomaa V Schnabel rb Kuulasmaa K blankenberg S Koenig W Waldeyer C 袁源(译) 郑武洪(审校) 不详

近期研究显示,脂蛋白(a)[lipoprotein(a),Lp(a)]相关心血管疾病风险与机体炎症负荷存在交互作用。本研究旨在探索一般人群中,高敏C反应蛋白(high-sensitive C-reactive protein,hsCrP)能否调节Lp(a)相关冠心病风险。方法:纳入欧洲8项基... 详细信息

近期研究显示,脂蛋白(a)[lipoprotein(a),Lp(a)]相关心血管疾病风险与机体炎症负荷存在交互作用。本研究旨在探索一般人群中,高敏C反应蛋白(high-sensitive C-reactive protein,hsCrP)能否调节Lp(a)相关冠心病风险。方法:纳入欧洲8项基于人群的前瞻性队列研究的71678例参与者数据(基线时65661例未患冠心病/6017例患有冠心病。

关键词：前瞻性队列研究高敏C反应蛋白心血管疾病风险机体炎症冠心病 reactive 交互作用

Spatial Zonation and Diversity of bivalves and Gastropods in Mangrove Forests of Casiguran, Aurora, Philippines

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Open Journal of Ecology 2021年第10期11卷 645-663页

作者： Maria Cristina b. Cañada Eutiquio L. rotaquio, Jr. rb J. Gallego Department of Graduate Studies Aurora State College of Technology Baler Aurora Philippines

This study generally aimed to determine the spatial zonation and diversity of bivalves and gastropods in mangrove forest of Cozo, Esteves and Tinib in Casiguran, Aurora. Specifically, this aimed to determine the species composition and distribution, and determine the relationship between spatial zonation and diversity of bivalves and gastropods as influenced by ecological factors such as vegetation, soil texture, organic matter, soil salinity, and soil pH. A total of 22 taxa comprising eight species of bivalves and 14 species of gastropods were identified. The high tidal zone of Esteves had high diversity (0.66) of bivalve species compared to other tidal zones and areas. On the other hand, the diversity of gastropods was almost equal in the middle tidal zones of Cozo (0.60), Esteves (0.57), and Tinib (0.42). In terms of bivalve species’ density and abundance, Dendostrea folium was the most dense and abundant in the low tidal zone of Cozo (253,333 ind.ha−1 or 25 ind.m2-1, 97.44%) while Gafrarium tumidum in the low tidal zones of Esteves (46,666 ind.ha−1 or 4 ind.m2-1, 73.68%) and Tinib (126,666 ind.ha−1 or 12 ind.m2-1, 50%). In terms of gastropod species’ density and abundance, Cerithidea cingulata was the most dense and abundant in the low tidal zone (666,666 indrap;">

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大脑告诉眼睛的东西

科学（中文版） 1990年第8期 42-48页

作者： b.,rb,Jr 周劲松

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人类感染新型H7N9禽流感病毒

北京医学 2013年第6期35卷 487-488页

作者：李侗曾 Gao rb Cao b Hu YW 首都医科大学附属北京佑安医院感染科 100069

2013年4月11日，《新英格兰医学杂志》在线发表了来自中国疾控中心、上海公共卫生临床中心、上海市第五人民医院、上海疾控中心、安徽疾控中心等单位的中国科学家的最新研究成果《人感染新型H7N9禽流感病毒》。介绍了我国科学家发现人感... 详细信息

2013年4月11日，《新英格兰医学杂志》在线发表了来自中国疾控中心、上海公共卫生临床中心、上海市第五人民医院、上海疾控中心、安徽疾控中心等单位的中国科学家的最新研究成果《人感染新型H7N9禽流感病毒》。介绍了我国科学家发现人感染H7N9禽流感病毒的重要成果和意义．

关键词：禽流感病毒人类感染上海市第五人民医院中国疾控中心中国科学家医学杂志公共卫生英格兰

A quantitative microplasticity-based approach to rationalize the poor strengthening response of polycrystalline Mg alloys

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Journal of Magnesium and Alloys 2023年第5期11卷 1656-1671页

作者： X.Z.Jin W.C.Xu D.b.Shan b.Guo b.Jin M.T.Pérez-Prado National Key Laboratory for Precision Hot Processing of Metals&School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001PR China IMDEA Materials Institute C/Eric Kandel2GetafeMadrid 28906Spain Advanced Composites Simulation Lab University of Southern CaliforniaLos AngelesCA 90089U.S.A M.C.Gill Composites Center University of Southern CaliforniaLos AngelesCA 90089U.S.A

This work aims to understand the inefficiency of nanoprecipitates to strengthen a weakly textured,polycrystalline Mg-Gd-Y-Zr *** experimental micromechanical approach consisting on micropillar compression combined with analytical electron microscopy is put in place to analyze the effect of nanoprecipitation on soft and hard basal slip and twinning in individual grains with different *** study shows that,in grains that are favorably oriented for basal slip(“soft”basal slip),aging leads to extreme localization due to the ability of basal dislocations to shear the nanoparticles,resulting overall in the softening of basal ***,in grains in which the c-axis is almost perpendicular to the compression axis,prismatic slip dominates deformation in the solid solution state and nanoprecipitation favors twinning due to the concomitant lattice solute ***,in grains oriented with their c-axis making an angle of about 5-7°with respect to the compression axis,which deform mainly by“hard”basal slip,precipitation leads to the strengthening of basal systems in the absence of obvious *** work reveals that the poor hardening response of the polycrystalline alloy is related to the capability of basal dislocations to shear the nanoparticles,in the absence of Orowan looping events,and to the associated basal slip localization.

关键词： Magnesium Precipitation basal slip Particle shearing Slip localization