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Helium droplet assisted synthesis of plasmonic Ag@ZnO core@shell nanoparticles

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Nano Research 2020年第11期13卷 2979-2986页

作者： Alexander Schiffmann Thomas Jauk Daniel Knez Harald Fitzek Ferdinand Hofer Florian Lackner Wolfgang e.ernst Institute of experimental Physics Graz University of TechnologyA-8010GrazAustria Institute of electron Microscopy and Nanoanalysis&Graz Centre for electron Microscopy Graz University of TechnologyA-8010GrazAustria

Plasmonic Ag@ZnO core@shell nanoparticles are formed by synthesis inside helium droplets with subsequent deposition and controlled *** particle size and shape can be controlled from spherical sub-10 nm particles to larger elongated *** advantage of the method is the complete absence of solvents,precursors,and other chemical *** obtained particle morphology and elemental composition have been analyzed by scanning transmission electron microscopy(STeM)and energy dispersive X-ray spectroscopy(eDS).The results reveal that the produced particles form a closed and homogeneous ZnO layer around a 2–3 nm Ag core with a uniform thickness of(1.33±0.15)nm and(1.63±0.31)nm for spherical and wire-like particles,*** results are supported by ultraviolet photoelectron spectroscopy(UPS),which indicates a fully oxidized shell layer for the particles studied by *** plasmonic properties of the produced spherical Ag@ZnO core@shell particles are investigated by two-photon photoelectron(2PPe)*** excitation of the localized surface plasmon resonance in Ag at around 3 eV,plasmonic enhancement leads to the liberation of electrons with high kinetic *** is observed for both Ag and Ag@ZnO particles,showing that even if a Ag cluster is covered by the ZnO layer,a plasmonic enhancement can be observed by photoelectron spectroscopy.

关键词： nanoparticle helium droplet plasmonics photoelectrons

Large Igneous Provinces, Their Giant Mafic Dyke Swarms, and Links to Metallogeny

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Acta Geologica Sinica(english edition) 2016年第S1期90卷 193-194页

作者： Simon M.JOWITT Richard e.ernst School of earth Atmosphere and Environment Monash University Department of Geoscience University of Nevada Las Vegas Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University

Giant mafic dyke swarms are a key component of the feeder system of Large Igneous Provinces（LIPs）,large volume（>0.1 Mkm;;frequently above>1 M km;）,mainly mafic（-ultramafic）magmatic events of intraplate affinity.

关键词： Their Giant Mafic Dyke Swarms and Links to Metallogeny Large Igneous Provinces

Giant Circumferential Dyke Swarms on earth: Possible Analogues of Coronae on Venus and Similar Features on Mars

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Acta Geologica Sinica(english edition) 2016年第S1期90卷 186-187页

作者： Kenneth L.BUCHAN Richard e.ernst Geological Survey of Canada Natural Resources Canada Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University

Venusian coronae are large(60-2600 km diameter)tectono-magmatic features characterized by quasi-circular graben-fissure systems and topographic features such as a central dome,central depression,circular rim or circular

关键词： Giant Circumferential Dyke Swarms on earth Possible Analogues of Coronae on Venus and Similar Features on Mars

Guidelines for Preparing Comprehensive Regional Mafic Dyke Swarm Maps

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Acta Geologica Sinica(english edition) 2016年第S1期90卷 20-21页

作者： Richard e.ernst Kenneth L.BUCHAN Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University Geological Survey of Canada Natural Resources Canada

Several regional maps of mafic dyke swarms(e.g.,Buchan and ernst,2004,2013;Vuollo and Huhma,2005;Peng,2015)have been published in recent years,as well as an earlier global dyke compilation map(ernst et al.,1996).

关键词： maps Guidelines for Preparing Comprehensive Regional Mafic Dyke Swarm Maps

Pit Chains Belonging to Radiating Graben-Fissure Systems on Venus: Model for Formation during Lateral Dyke Injection

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Acta Geologica Sinica(english edition) 2016年第S1期90卷 143-144页

作者： Calder W.PATTeRSON Richard e ernst Claire SAMSON Department of earth Sciences Carleton University

Pits are circular to elliptical,steep-sided,flat-bottomed depressions interpreted to form from collapse into a *** occur on earth,Venus and Mars and range in diameter from;00 m to several kilometres(e.g.

关键词： rock Pit Chains Belonging to Radiating Graben-Fissure Systems on Venus Model for Formation during Lateral Dyke Injection

Map of Mafic Dyke Swarms and Related Units of Russia and Adjacent Regions

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Acta Geologica Sinica(english edition) 2016年第S1期90卷 22-23页

作者： Richard e.ernst Kenneth L.BUCHAN Svetlana BOTSYUN Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University Geological Survey of Canada Natural Resources Canada Laboratoire des Sciences du Climat et de l'environnement LSCE/IPSL CEA-CNRS-UVSQ Université Paris-Saclay

Work is currently underway to produce a map in Arc GISTM 10 of the mafic dyke swarms and related units(volcanics,sills and layered intrusions)of Russia and adjacent regions at a scale of 1:5,000,*** the past

关键词： Map of Mafic Dyke Swarms and Related Units of Russia and Adjacent Regions

A 1.78 Ga large igneous province in the North China craton:The Xiong'er Volcanic Province and the North China dyke swarm

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A 1.78 Ga large igneous province in the North China craton:T...

Mapping the Dyke Swarms emplaced within the Different Archean Cratons of the Indian Shield Using Google^(TM) earth Images and Arc GIS^(TM) Techniques

中国科学院地质与地球物理研究所2008学术年会

作者： Richard e.ernst ernst Geosciences 43 Margrave Ave OttawaOntario K1T 3Y2Canada and Department of Earth ScienceCarleton UniversityOttawaOntarioCanada K1S 5B6

The 1.78 Ga Xiong’er Volcanic Province(XVP) and coeval North China giant mafic Dyke Swarm(NCDS) are the most important magmatic events occurring after the amalgamation of the North China craton(NCC).The XVP consists of 3-7 km of extrusive volcanics and some feeder dykes/sills located along the southern margin of the NCC and extending over an area>0.06 M km .Compositions vary from basalt to rhyolite,but are predominantly intermediate in tenns of silica *** are also minor sedimentary intercalations and pyroclastic *** sedimentary interlayers indicate an environment changing from continental-facies to oceanic-facies *** XVP is characterized by fractional crystallization from an eM I type mantle source,and both continental arc(Andean-type) and rift environments have been *** NCDS is widespread in the central NCC with an outcrop area>0.1 M km,and are exposed at variable depths up to 20 km(deepest in the north).Dyke compositions vary from basalt to andesite and dacite,but are dominantly mafic,and comprise two series of *** studies revealed that the NCDS recorded assimilation and fractional crystallization of an eM I type magma source,with a minor DM contribution in the younger *** syn-collisional and infra-continental anorogenic environments have been *** and petrogenic correlations suggest a cogenetic relationship between the NCDS and XVP,and considered together,they define a Large Igneous Province(LIP) of>0.1 M km in area and>0.1 M km in volume,which is also notable for its continuous compositional range from mafic to felsic(with no gap at intermediate compositions).The petrology is explained by a common magma source that undergoes a silica-poor and iron-enriched fractionation trend at depth followed by a silica-rich and iron-poor fractionation trend in shallow-level magma conduits(dykes) and surface lavas.A mantle plume is favored as the cause of this～1.78 Ga North China LIP.

关键词： Paleoproterozoic North China craton Xiong’er Volcanic Province North China dyke swarm Large igneous province(LIP) Plume

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Acta Geologica Sinica(english edition) 2016年第S1期90卷 64-65页

作者： Rajesh K.SRIVASTAVA Amiya K.SAMAL Richard e.ernst Centre of Advanced Study in Geology Institute of Science Banaras Hindu University Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University

The Indian shield comprises a number of Archean–Paleoproterozoic cratonic blocks and predominantly Meso–Neoproterozoic mobile belts with Archean *** these ancient cratons were thought to be integral parts of

关键词： earth Images and Arc GIS Mapping the Dyke Swarms emplaced within the Different Archean Cratons of the Indian Shield Using Google Techniques Arc TM

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中风的康复和理疗

国外医学（物理医学与康复学分册） 1992年第1期12卷 28-30页

作者： ernst e 卢光增

近10年来,在一些国家里,中风死亡率的显著下降主要是由于发病率下降,而生存率仅有较小程度的提高,因此死亡率下降是成功预防的结果。同时,急性中风的治疗却未能有这样的进展,康复在减少中风死亡方面的作用还不清楚。围绕中风康复有很多... 详细信息

近10年来,在一些国家里,中风死亡率的显著下降主要是由于发病率下降,而生存率仅有较小程度的提高,因此死亡率下降是成功预防的结果。同时,急性中风的治疗却未能有这样的进展,康复在减少中风死亡方面的作用还不清楚。围绕中风康复有很多问题未能确定,特别是有两个关键问题需要解答:中风康复有效吗?什么是最理想的方法?一、有关康复有效的证据很多非对照研究指出,康复程序改善功能状态,这种改善不只是由于自发的恢复.中风康复机构的建立,使医院出院率比以往显著提高了。与此相似。

关键词：中风康复物理疗法