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13篇 您的检索式:作者名="Ben Lewis"
    题名 作者 年代 出处 被引量
1Digital earth Australia-unlocking new value from earth observation data显示文摘Petascale archives of Earth observations from space(EOS)have the potential to characterise water resources at continental scales.For this data to be useful,it needs to be organised,converted from individual scenes as acquired by multiple sensors,converted into“analysis ready data”,and made available through high performance computing platforms.Moreover,converting this data into insights requires integration of non-EOS data-sets that can provide biophysical and climatic context for EOS.Digital Earth Australia has demonstrated its ability to link EOS to rainfall and stream gauge data to provide insight into surface water dynamics during the hydrological extremes of flood and drought.This information is supporting the characterisation of groundwater resources across Australia’s north and could potentially be used to gain an understanding of the vulnerability of transport infrastructure to floods in remote,sparsely gauged regions of northern and central Australia.Trevor Dhu Bex Dunn Ben Lewis Leo Lymburner Norman Mueller Erin Telfer Adam Lewis Alexis McIntyre Stuart Minchin Claire Phillips 2017Big Earth Data2017,1,1:2
2Discovery and validation of urinary metabotypes for the diagnosis of hepatocellular carcinoma in West Africans显示文摘Nimzing G. Ladep Anthony C. Dona Matthew R. Lewis Mary M.E. Crossey Maud Lemoine Edith Okeke Yusuke Shimakawa Mary Duguru Harr F. Njai Haddy K.S. Fye Makie Taal John Chetwood Ben Kasstan Shahid A. Khan Deborah A. Garside Anisha Wijeyesekera Andrew V. Thil 2014Hepatology2014,,4:1
3Lobeline, a nicotinic partial agonist attenuates alcohol consumption and preference in male C57BL/6J mice显示文摘Justin M. Farook Ben Lewis Justin G. Gaddis John M. Littleton Susan Barron 2009Physiology & Behavior2009,,3:1
4Near- field scanning optical microscopy in cell biology 显示文摘Lewis A Radko A Ben Ami N 1999Trends Cell Biol1999,9,2:1
5Hammer &tickle显示文摘Ben Lewis 2006Prospect Magazine2006,,122:1
6Tacrolimus enhances the potency of posaconazole against Rhizopus oryzae in vitro and in an experimental model of mucormycosis显示文摘Lewis RE Ben Ami R Best L 2013J Infect Dis2013,207,5:1
7Epidemiology and sites of involvement of invasive fungal infections in patients with haematological malignancies: a 20‐year autopsy study显示文摘Russell E. Lewis Lizebeth Cahyame‐Zuniga Konstantinos Leventakos Georgios Chamilos Ronen Ben‐Ami Pheroze Tamboli Jeffrey Tarrand Gerald P. Bodey Mario Luna Dimitrios P. Kontoyiannis 2013Mycoses2013,,6:1
8Antifungal activity of' colistin against mucorales species in vitro and in a murine model of Rhizopus oryzae puhnonary infection 显示文摘Ben - Ami R Lewis R E Tarrand J 2010Antimicrob Agents Chemother2010,54,1:1
9Antifungal activity of colistin against mucorales species in vitro and in a routine model of Rhizopus oryzae pulmonary infection显示文摘Ben Ami R Lewis RE Tarrand J 2010Antimierob Agents Che mother2010,54,1:1
102019《航空周刊》摄影大赛编辑推荐作品显示文摘这张照片是由两张照片合成,描绘了UPS快递公司的一架波音757-200P货机F(航班号UPS 1450)于2018年12月19日起飞的场景,该航班将在美国圣诞假期前航运的高峰期从路易斯维尔飞往克里夫兰。Jacob Rutledge(摄影) Vladimir Voronov(摄影) Jeremy Dwyer-Lindgren(摄影) Santiago Borja(摄影) Jin Nakashima(摄影) Ben Cooper(摄影) Jack Beyer(摄影) Walter Scriptunas II(摄影) John Kraus(摄影) Avichai Socher(摄影) Peter Lewis(摄影) Avgar Idan(摄影) 2020国际航空2020,0,1:0
11Major,trace element and Sr-Nd isotope evidence for a sublithospheric mantle source for the Umkondo large igneous province显示文摘The Mesoproterozoic(1.11 Ga)Umkondo large igneous province(LIP)in southern Africa and Antarctica was emplaced in<5 Myr and is dominated by low-Ti tholeiitic doleritic-gabbroic sills.It is of particular interest because it is the least studied LIP in southern Africa with both sublithospheric and lithospheric mantle sources proposed and it coincides with the early assembly of Rodinia,so it has importance in understanding the nature of magmatism and tectonics in and around the Kalahari craton during the Mesoproterozoic.In this study,we compiled a large database of existing(~750)and new(~100)major and trace element data for the Umkondo province,as well as 42 new Sr-Nd isotopic measurements,to provide constraints on its magma sources and geochemical evolution.Major element compositional variations in the low-Ti tholeiites are explained by low-pressure(1 kbar)three-phase fractional crystallisation(olivine,clinopyroxene and plagioclase)of a parent magma with~10 wt.%MgO in oxidising conditions(QFM+1).Inverse models show that the low-Ti tholeiitic magmas were derived as residual melts after the crystallization of 12%-33%olivine from primary komatiitic-basaltic magmas(up to~20 wt.%MgO)in equilibrium with mantle olivine(Fo90).Low Sm/Yb and TiO2/Yb-Nb/Yb indicate that the primary magmas were derived by 2%-20%shallow(40-50 km)partial melting of spinel lherzolite.High Sm/Yb is restricted to dyke swarms and may imply limited magma production from deeper(up to~70 km)garnet lherzolite-like sources.The low-Ti tholeiites of the Umkondo province are enriched in large ion lithophile elements(Rb-Sr-Cs-K)and depleted in high-field strength elements(Zr-Hf-Nb-Ta),indicating the involvement of crustal material and/or the subcontinental lithospheric mantle.This is supported by covariations in Th/Nb,Nb/Yb,Nb/La and Ce/Sm with generally negativeΔNb.Sr-Nd isotopes lend support to the notion that the Umkondo magmas were derived from depleted and/or enriched sublithospheric mantle sources and subsequently contaminated by enriched lithospheric material during emplacement(initial(at 1.11 Ga)^(87)Sr/^(86)Sr between 0.704820 and 0.737464 andεNd between-8.9 and+5.3).The Vredefort sills are significant as they display the most depleted Sr-Nd isotopic signatures(average initial ^(87)Sr/^(86)Sr of 0.705342 and averageεNd of 0.4)and are the least contaminated magma suite in the Umkondo province.Because of(i)the large volume of low-Ti magmas,(ii)evidence of a primary hot and MgO-rich(komatiitic)magma,and(iii)the short duration of magmatism,we suggest that the Umkondo province was formed by plume-induced melting of the sublithospheric mantle beneath the Kalahari craton in an extensional setting.This contrasts with previous suggestions that the heat source developed in response to the“thermal insulation”of the mantle beneath a thickened Kalahari craton in the absence of a mantle plume.There is further evidence from the elevated Zn/Fe that the sublithospheric mantle was lithologically heterogeneous and consisted of mixed peridotite and pyroxenite domains.There is a general lack of ultramafic cumulates in the low-Ti magma suite that may imply there was deeper ponding and storage of the primary magmas that fractionated large quantities of ultramafic rocks.There is also a paucity of high-Ti rocks in the Umkondo province that may reflect limited direct melting of the lithospheric mantle or that they are simply not as well-preserved in this province compared to the Karoo province.The similar trace element and Sr-Nd isotopic compositions of the Umkondo sills in southern Africa with the Borgmassivet sills in Antarctica support the concept that the Kalahari craton and Grunehogna terrane were adjoined at 1.11 Ga.The timing of the Umkondo province indicates there was localised lithospheric extension and upwelling asthenospheric mantle during a time of dominantly compressional tectonics on Earth at the end of the‘boring billion’.Ben Hayes Lewis D.Ashwal Khulekani B.Khumalo Linda M.Iaccheri 2024Geoscience Frontiers2024,15,1:0
12Efficient Photocatalytic Reduction of CO_(2)Catalyzed by the Metal–Organic Framework MFM-300(Ga)显示文摘Photocatalytic reduction of CO_(2)to carbon fuels is an important target but highly challenging to achieve.Here,we report the efficient photoconversion of CO_(2)into formic acid over a Ga(Ⅲ)-based metal–organic framework(MOF)material using triethanolamine as the sacrificial agent.Under light irradiation and at room temperature,photoreduction of CO_(2) over MFM-300(Ga)yields formic acid with a selectivity of 100%.Tian Luo Zi Wang Xue Han Yinlin Chen Dinu Iuga Daniel Lee Bing An Shaojun Xu Xinchen Kang Floriana Tuna Eric JLMcInnes Lewis Hughes Ben FSpencer Martin Schröder Sihai Yang 2022CCS Chemistry2022,4,8:0
13Rapid,high-resolution detection of environmental change over continental scales from satellite data–the Earth Observation Data Cube显示文摘The effort and cost required to convert satellite Earth Observation(EO)data into meaningful geophysical variables has prevented the systematic analysis of all available observations.To overcome these problems,we utilise an integrated High Performance Computing and Data environment to rapidly process,restructure and analyse the Australian Landsat data archive.In this approach,the EO data are assigned to a common grid framework that spans the full geospatial and temporal extent of the observations–the EO Data Cube.This approach is pixel-based and incorporates geometric and spectral calibration and quality assurance of each Earth surface reflectance measurement.We demonstrate the utility of the approach with rapid time-series mapping of surface water across the entire Australian continent using 27 years of continuous,25 m resolution observations.Our preliminary analysis of the Landsat archive shows how the EO Data Cube can effectively liberate high-resolution EO data from their complex sensor-specific data structures and revolutionise our ability to measure environmental change.Adam Lewis Leo Lymburner Matthew B.J.Purss Brendan Brooke Ben Evans Alex Ip Arnold G.Dekker James R.Irons Stuart Minchin Norman Mueller Simon Oliver Dale Roberts Barbara Ryan Medhavy Thankappan Rob Woodcock Lesley Wyborn 2016International Journal of Digital Earth2016,9,1:0
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