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Nano Research 2024年第6期17卷 5336-5348页

作者： Alevtina Smekhova Daniel gaertner Alexei Kuzmin Ana Guilherme Buzanich Goetz Schuck Ivo Zizak Gerhard Wilde Kirill V.Yusenko Sergiy Divinski Helmholtz-Zentrum Berlin für materialien und Energie(HZB) D-12489 BerlinGermany Institute of materials Physics University of MünsterD-48149 MünsterGermany Institute of Solid State Physics University of LatviaLV-1063 RigaLatvia Bundesanstalt für materialforschung und–prüfung(BAm) D-12489 BerlinGermany

multi-edge extended X-ray absorption fine structure(EXAFS)spectroscopy combined with reverse monte Carlo(RmC)simulations was used to probe the details of element-specific local coordinations and component-dependent structure relaxations in single crystalline equiatomic CrmnFeCoNi high-entropy alloy as a function of the annealing *** representative states,namely a high-temperature state,created by annealing at 1373 K,and a low-temperature state,produced by long-term annealing at 993 K,were compared in *** features identified in atomic configurations of particular principal components indicate variations in the local environment distortions connected to different degrees of compositional disorder at the chosen representative *** detected changes provide new atomistic insights and correlate with the existence of kinks previously observed in the Arrhenius dependencies of component diffusion rates in the CrmnFeCoNi high-entropy alloy.

关键词： high-entropy alloys diffusion short-range order extended X-ray absorption fine structure(EXAFS) reverse monte Carlo

A fine-scale assessment of the ecosystem service-disservice dichotomy in the context of urban ecosystems affected by alien plant invasions

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Forest Ecosystems 2019年第4期6卷 323-338页

作者： Luke J.Potgieter mirij.m gaertner Patrick J.O’Farrell David m.Richardson Centre for Invasion Biology Department of Botany and ZoologyStellenbosch University

Background: Natural resources within and around urban landscapes are under increasing pressure from ongoing urbanisation, and management efforts aimed at ensuring the sustainable provision of ecosystem services(ES) are an important response. Given the limited resources available for assessing urban ES in many cities, practical approaches for integrating ES in decision-making process are ***: We apply remote sensing techniques(integrating LiDAR data with high-resolution multispectral imagery)and combined these with supplementary spatial data to develop a replicable approach for assessing the role of urban vegetation(including invasive alien plants) in providing ES and ecosystem disservices(EDS). We identify areas denoting potential management trade-offs based on the spatial distribution of ES and EDS using a local-scale case study in the city of Cape Town, South Africa. Situated within a global biodiversity hotspot, Cape Town must contend with widespread invasions of alien plants(especially trees and shrubs) along with complex socio-political challenges. This represents a useful system to examine the challenges in managing ES and EDS in the context of urban plant ***: Areas of high ES provision(for example carbon sequestration, shade and visual amenity) are characterized by the presence of large trees. However, many of these areas also result in numerous EDS due to invasions of alien trees and shrubs – particularly along rivers, in wetlands and along the urban edge where tall alien trees have established and spread into the natural vegetation(for example increased water consumption, increased fire risk and reduced soil quality). This suggests significant trade-offs regarding the management of species and the ES and EDS they ***: The approach applied here can be used to provide recommendations and to guide city planners and managers to fine-tune management interventions at local scales to maximise the provision of ES.

关键词： Biodiversity Biological invasions Ecosystem disservices Ecosystem services Remote sensing Trade-offs Tree invasions Urban plant invasions

A multi-scale modelling framework to guide management of plant invasions in a transboundary context

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Forest Ecosystems 2016年第4期3卷 297-310页

作者： Joao martins David m.Richardson Renato Henriques Elizabete marchante Hélia marchante Paulo Alves mirij.m gaertner Joao P.Honrado Joana R.Vicente InBIO/CIBIO-Centro de Investigacao em Biodiversidade e Recursos Geneticos Universidade do Porto-Campus Agrario de VairaoRua Padre Armando Quintasn°74485-661 VairaoPortugal Centre for Invasion Biology Department of Botany and ZoologyStellenbosch UniversityMatieland 7602South Africa Institute of Earth Sciences(ICT/University of minho/CCT) MinhoPortugal Centre for Functional Ecology Department of Life SciencesUniversity of Coimbra3000-456 CoimbraPortugal Departamento de Ambiente Escola Superior Agraria de CoimbraInstituto Politecnico de CoimbraBencanta3045-601 CoimbraPortugal Faculdade de Ciencias da Universidade do Porto Ediffcio FC4(Biologia)Rua do Campo Alegres/n4169-007 PortoPortugal Environmental Resource management Department Westlake Conservation OfficeOu Kaapse WegTokai7966 City of Cape TownSouth Africa

Background：Attention has recently been drawn to the issue of transboundary invasions,where species introduced and naturalized in one country cross international borders and become problematic in neighbouring *** modelling frameworks,able to identify the environmental drivers of invasion and forecast the current and future potential distribution of invasive species,are needed to study and manage *** due to the lack of species distribution and environmental data,or assumptions of modelling tools,often constrain the reliability of model ***：We present a multiscale spatial modelling framework for transboundary invasions,incorporating robust modelling frameworks（multimodel Inference and Ensemble modelling） to overcome some of the *** framework is illustrated using Hakea sericea Schrad.（Proteaceae）,a shrub or small tree native to Australia and invasive in several regions of the world,including the Iberian *** study scales were considered：regional scale（western Iberia,including mainland Portugal and Galicia） and local scale（northwest Portugal）.At the regional scale,the relative importance of environmental predictors sets was evaluated and ranked to determine the main general drivers for the species distribution,while the importance of each environmental predictor was assessed at the local *** potential distribution of *** was spatially projected for both scale ***：model projections for western Iberia suggest that a large area is environmentally suitable in both Portugal and *** and landscape composition sets were the most important determinants of this regional distribution of the ***,a geological predictor（schist lithology） was more important in explaining its local-scale ***：After being introduced to Portugal,*** has become a transboundary invader by expanding in parts of Galicia（Spain）.The fact that a larger area is predicted as

关键词： Drivers of invasion Hakea sericea multimodel inference Transboundary invasion management Species distribution models

下一代车门区系统IC 将大力提高能效并推进汽车电气化

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电源世界 2019年第1期 4-5页

作者： G.Torrisi F.Burkhardt m.gaertner 不详

近年来,汽车电气化是大势所趋,汽车电气化不只是引入纯电动汽车,还是不断地用电控技术取代传统机械部件和机械继电器,或者在某些情况下引入新的功能。汽车大规模电气化正在推动自动驾驶向更高级别发展,从中长期看,许多车辆可能被视为'... 详细信息

近年来,汽车电气化是大势所趋,汽车电气化不只是引入纯电动汽车,还是不断地用电控技术取代传统机械部件和机械继电器,或者在某些情况下引入新的功能。汽车大规模电气化正在推动自动驾驶向更高级别发展,从中长期看,许多车辆可能被视为'无人驾驶出租车'。根据这一新的汽车驾驶概念,车门内的所有功能都将实现自动化。

关键词：驱动器执行机构电源管理芯片 IC

美国结直肠外科医师协会2019版肠道准备在择期结直肠手术中的应用临床实践指南

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结直肠肛门外科 2019年第4期25卷 375-380页

作者： John migaly,m.D. Andrea C.Bafford,m.D. Todd D.Francone,m.D.,m.P.H. Wolfgang B.gaertner,m.D.,m.Sc. Cagla Eskicioglu,m.D.,m.Sc.,F.R.C.S.C. Liliana Bordeianou,m.D.,m.P.H. Daniel L.Feingold,m.D. Scott R.Steele,m.D.,m.B.A. 刘孟承王恺京杜涛傅传刚 Department of Surgery Duke University School of Medicine Department of Surgery University of Maryland Medical Center Department of Surgery Massachusetts General Hospital Division of Colorectal Surgery University of Minnesota Health Department of Surgery Michael G.DeGroote School of Medicine McMaster University Department of Surgery Columbia University Irving Medical Center Department of Colorectal Surgery Cleveland Clinic Cleveland Ohio 同济大学附属东方医院胃肠肛肠外科

美国结直肠外科医师协会(The American Society of Colon and Rectal Surgeons,ASCRS)于2019年1月公布了最新的肠道准备在择期结直肠手术中的应用临床实践指南。该指南是由国际知名结直肠外科专家组成的临床实践指南委员会修订,对肠道... 详细信息

美国结直肠外科医师协会(The American Society of Colon and Rectal Surgeons,ASCRS)于2019年1月公布了最新的肠道准备在择期结直肠手术中的应用临床实践指南。该指南是由国际知名结直肠外科专家组成的临床实践指南委员会修订,对肠道准备的一些争议进行了汇总和分析。

关键词：结直肠手术肠道准备治疗指南美国结直肠外科医师协会循证医学

An investigation on total nonstructural carbohydrate trends in three Agropyron grasses of Golestan National Park in northern Iran

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An investigation on total nonstructural carbohydrate trends ...

Optimisation of Decolourisation Conditions of Crude Shea (<i>Vitellaria paradoxa</i>gaertner F) Butter: Yellow Type

ⅩⅪ International Grassland Congress and the Ⅷ International Rangeland Congress

作者： S.Houshmand moayed,m.mesdaghi H.R.Sadeghipour Department of Range management College of Natural Resources University of Agricultural SciencesGorganIran.

＜正＞Introduction We examine total nonstructural carbohydrate（TNC） concentrations in three grasses within the genus Agropyron: of Agropyron cristatum（L.） gaertner,Agropyron trichophorum（Link） Richt.,Agropyron intermedium（Host） Barkw. and ***,within Golestan National Park in northern *** objectives were to（1） compare TNC reserves among root,crown,and rhizoms and（2） compare TNC concentrations during phenological development.

关键词： Agropyron spp. total nonstructural carbohydrate phenological stages

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Advances in Chemical Engineering and Science 2015年第4期5卷 505-514页

作者： A. m. mohagir C. F. Abi N. D. Bup R. Kamga C. Kapseu Faculty of Science and Technologies University of Sarh Sarh Chad Department of Chemistry Higher Teachers Training College University of Yaounde 1 Yaounde Cameroon Higher Institute of the Sahel University of Maroua Maroua Cameroon National Advanced School of Agro-Process Industries University of Ngaoundéré Ngaoundéré Cameroon

In this study, response surface methodology applying Doehlert experimental design was used to optimise decolourisation parameters of crude yellow shea butter. The decolourisation process was significantly influenced by three independent parameters: contact time, decolourisation temperature and adsorbent dose. The responses of the process were oil loss, acid value, peroxide value and colour index. Contour plots of the decolourisation responses were superimposed and well defined the optimum zone. The optimum decolourisation conditions were found to be: contact time (30 min), decolourisation temperature (80℃ - 95℃) and adsorbent dosage (1 - 2 mass%). These conditions gave decolourised shea butter with the following responses;oil loss (6.2% ± 0.2%), peroxide value (1.7 ± 0.1 meq O2/kg), colour (0.21 ± 0.05 Lovibond yellow) and acid value (25.6 ± 0.7 mg KOH/g).

关键词： Yellow Shea Butter Decolourisation Doehlert Experimental matrix RSm Optimisation