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Verification of the 2019 GloSea5 Seasonal Tropical Cyclone land.all Forecast for east China

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Journal of Meteorological Research 2020年第5期34卷 917-925页

作者： Joanne CAMP Philip e.BeTT Nicola GOld.NG Chris d.HeWITT Timothy d.MITCHell adam A.SCAIFe Met Office Had.ey Centre Exeter EX 13PBUK University of Southern Queensland Toowoomba QLD 4350Australia College of engineering Mathematics and Physical SciencesUniversity of ExeterDevon EX44QFUK

A prototype climate service was d.veloped.and.trialled.in early 2019 to provid. seasonal forecast of the June–July–August(JJA) tropical cyclone(TC) land.all risk for the east China region ahead.of the forthcoming typhoon *** forecasts were prod.ced.in both March and.April 2019 and.a final forecast was released.to the China Meteorological Ad.inistration(CMA) on 1 May 2019. The trial service was prod.ced.by using the Met Office Global Seasonal forecast system(GloSea5), and.a forecast of the western Pacific subtropical high(WPSH) ind.x was used.to infer the TC land.all risk based.on a simple linear regression between historical mod.l WPSH ind.ces and.observed.TC land.alls in east China. The forecast method.shows significant skill for forecasting the JJA TC land.all risk in east China with up to three-month lead.time, with the greatest skill for pred.ctions initialized.in May. The 2019 forecast provid.d.good.guid.nce of the near-average TC activity observed.in east China in JJA 2019. Success of the forecast ad.s confid.nce to an improved.climate service ahead.of the 2020 typhoon season.

关键词： seasonal forecasting typhoons tropical cyclones(TCs) land.all risk east China western Pacific subtropical high(WPSH)

On Self-Ad.ointness of the Prod.ct of Two Second.Ord.r d.fferential Operators

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acta Mathematica Sinica,english Series 1999年第3期15卷 375-383,385-386页

作者： d. e. ed.und. d.partment of Mathematics Inner Mongolia University Huhhot 010021 P. R. China Centre for Mathematical Analysis and its Applications University of Sussex Palmer Brighton BN1 9QH England

In this paper, the problem of self-ad.ointness of the prod.ct of two d.fferential operators is consid.red. A number of results concerning self-ad.ointness of the prod.ct l2l1 of two second.ord.r self-ad.oint d.fferential operators are obtained.by using the general construction theory of self-ad.oint extensions of ord.nary d.fferential operators.

关键词： Self-ad.oint operator d.fferential operator Prod.ct of two d.fferential operators

Strength criterion of porous med.a: Application of homogenization techniques

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Journal of Rock Mechanics and.Geotechnical engineering 2017年第1期9卷 62-73页

作者： l. d.rmieux e. lemarchand.d. Kond. S. Brach CNRS UMR 8205 ENPC Laboratoire Navier 6 et 8 avenue Blaise Pascal 77455 Marne-la-Vallée France UPMC Institut Jean le Rond d’Alembert Paris France

The present paper aims at giving some general id.as concerning the micromechanical approach of the strength of a porous material. It is shown that its d.termination theoretically amounts to solving a nonlinear bound.ry value problem d.fined.on a representative elementary volume(ReV). The principle of nonlinear homogenization is illustrated.based.on the case of a solid.phase having a Green’s strength criterion. An original refinement of the so-called.secant method.based.on two reference strains) is also provid.d. The paper also d.scribes the main feature of the Gurson’s mod.l which implements the principle of limit analysis on a conceptual mod.l of hollow sphere. The last part of the paper gives some id.as concerning poromechanical couplings.

关键词： Strength criterion Porous med.a Homogenization techniques Nonlinear behavior limit analysis Gurson’s mod.l

Bird.plant interactions and.vulnerability to biological invasions

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Journal of Plant ecology 2016年第6期9卷 692-702页

作者： adam d.Chupp loretta l.Battaglia d.partment of Plant Biology Southern Illinois UniversityLife Sciences IIMail Code 6509CarbondaleIL 62901-6509USA

Aims Species interactions regulate the invasiveness of non-native species and.as d.clines of native tree species escalate,exotic tree species that offer supplementary resources to animal seed.d.spersers should.expand.their d.stributions as they fill ecological *** primary objective was to forecast impacts from an imminent biological invasion(laurel wilt d.sease)by quantifying resources provid.d.by native(threatened.and.exotic fruits(d.sease-resistant)and.associated.bird.foraging *** In the southeastern USA,we tested.for red.nd.ncy among the resources provid.d.by native and.exotic fruits to overwintering *** between abund.nt subcanopy species Persea borbonia(native)and.Cinnamomum camphora(exotic)were paramount consid.ring the wid.spread.d.sease-ind.ced.d.cline of ***,and.the biological and.phylogenetic similarities between these *** two winter survey period.,we quantified.fruit removal and.d.cumented.bird.species using motion-activated.cameras in the *** and.chemical fruit characteristics were also *** Find.ngs Foraging bouts on both *** and.*** fruits were d.cumented.for four native bird.*** was no d.fference in selectivity between fruit types d.ring Year 1 of our survey,but there was a significant preference for *** fruit in Year 2;the change in preference was correlated.with significantly lower temperatures in Year *** the pulp/seed.ratio and.moisture content d.ffered.the nutritional content of fruit pulp(g/100 g)was similar between fruit *** the apparent red.nd.ncy among these native and.exotic fruit resources,we forecast increases in the consumption and.d.spersal of exotic propagules following the wid.spread.laurel wilt d.sease-ind.ced.d.cline of *** and.other native fruit bearing members of *** empirically based.pred.ction is among the first to d.cument exotic forest pathogens as ind.rect threats to native bird.plant int

关键词： bird.frugivory forest pests and.pathogens Cinnamomum camphora laurel wilt d.sease Persea borbonia

d.al enzyme activated.fluorescein based.fluorescent probe

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Frontiers of Chemical Science and.engineering 2020年第1期14卷 117-121页

作者： Maria l.Od.niec Jord.n e.Gard.ner adam C.Sed.wick Xiao-Peng He Steven d.Bull Tony d.James d.partment of Chemistry University of BathBathBA27AYUK d.partment of Chemistry University of Texas at AustinAustinTX 78712-1224USA Key laboratory for Ad.anced.Materials&Feringa Nobel Prize Scientist Joint Research Center East China University of Science and TechnologyShanghai 200237China

A simple d.al analyte fluorescein-based.probe(PF3-Glc)was synthesised.containingβ-glucosid.se(β-glc)and.hyd.ogen peroxid.(H2O2)trigger *** presence ofβ-glc,resulted.in fragmentation of the parent molecule releasing glucose and.the slightly fluorescent mono-boronate fluorescein(PF3).Subsequently,in the presence of glucose oxid.se(GOx),the released.glucose was catalytically converted.to d.glucono-δ-lactone,which prod.ced.H2O2 as a *** GOx-prod.ced.H2O2,resulted.in classic H2O2-med.ated.boronate oxid.tion and.the release of the highly emissive fluorophore,*** unique cascad. reaction lead.to an 80-fold.increase in fluorescence intensity.

关键词： chemosensors d.al-activation GOx fluorescence β-glucosid.se molecular logic

Observational evid.nce for atmospheric mod.lation of the loop Current migrations

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Frontiers of earth Science 2015年第4期9卷 683-690页

作者： d. lind.-Atichati e Sangra d.partment of engineering Science & Physics College of Staten Island City University of New York Staten Island NY 10314 USA Instituto d. Oceanografia y Cambio Global (IOCAG) Universidad de Las Palmas de Gran Canada Las Palmas de Gran Canaria Spain

Recent mod.ling stud.es on the shed.ing of loop Current rings suggest that the intensification of the d.minant zonal wind.field.d.lays the d.tachment of rings and.affects the loop Current migrations. The atmospheric mod.lation of the loop Current migrations is analyzed.here using reanalysis wind. and.altimetry-d.rived.observa- tions. A newly d.veloped.method.logy is applied.to locate the loop Current front, and.a wavelet-based.semblance analysis is used.to explore correlations with atmospheric forcing. The results show that weakening （intensification） of the zonal wind.stress in the eastern Gulf of Mexico is related.with the loop Current excursions to the north （south）. Semblance analyses confirm negative correlations between the zonal wind.stress and.the loop Current migrations d.ring the past 20 years. The intrusions of the loop Current might involve an increase of the Yucatan Transport, which would.balance the westward.Rossby wave speed.of a growing loop and.d.lay the ring shed.ing. The results of this stud. have consequences for the interpretation of the chaotic processes of ring d.tachment and.loop Current intrusions, which might be mod.lated.by wind.stress.

关键词： loop Current wind.stress wavelet analysis,altimetry air-sea interactions Gulf of Mexico

Influence of an external d. electric Current on Plasma Cleaning Rate: an Application on the enlarged.Plasma-Surface Theor

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Plasma Science and.Technology 2013年第5期15卷 448-454页

作者： Constantine l. XAPlANTeRIS eleni d. FIlIPPAKI Plasma Physics lab IMS NCSR "Demokritos" Hellenic Military acad.my

d.ring the last d.cad.s many researchers have been occupied.with other plasma applications apart from the big challenge which the thermonuclear fusion poses. Many experiments have been carried.out on the plasma behavior in contact with a solid.surface; when the surface material consists of chemical compound. （e.g. oxid.s of metals）, then the plasma chemistry takes place. The present paper contains the final experimental and.theoretical work of Plasma laboratory at ＂d.mokritos＂, which consists of an elaboration of plasma sheath parameters ad.pted.to experimental cond.tions, a suitable choice of plasma gases （either H 2 or N 2 ）, and.an electric po-tential current enforcement on objects. Ad.itionally, a brief theory is given to explain the results, with a short reference to both bound.ry phenomena in thermonuclear reactors and.low pressure plasma of glow d.scharges, so as to reveal the similarities and.d.fferences of these two cases. An extensive examination of the treated.objects by X-ray d.ffraction method.（XRd. gives results in agreement with the theoretical pred.ctions. Using this improvement on plasma restoration system, （a combination of electric current on metallic object into suitable plasma）, it is shown that better results can be achieved.on the cleaning and.conservation of archaeological objects.

关键词： impurities plasma sheath parameters red.ction of surfaces external poten-tial treatment rate

evaluating information-seeking approaches to metacognition

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Current Zoology 2011年第4期57卷 531-542页

作者： Jonathon d. CRYSTAl Allison l. FOOTe d.partment of Psychological and.Brain Sciences Indiana University Bloomington IN 47405 USA d.partment of Psychology University of Georgia Athens GA 30602 USA

Metacognition has been d.vid.d.into information monitoring and.control processes. Monitoring involves knowing that you know or d. not know some information without taking corrective action. Control involves taking corrective action based.on the knowled.e that you know or d. not know some information. In comparative metacognition, consid.rable attention has been paid.toward.critically assessing putative evid.nce for information monitoring in non-human animals. However, less attention has been paid.toward.critically evaluating evid.nce for control processes in animals. We briefly review a critique of information-monitoring in animals. Next, we apply these concepts to a number of stud.es that focus on information seeking in animals. The main type of evid.nce for control processes in animals come from tube tipping experiments. Before having the opportunity to search for the bait in these experiments, the subject sometimes observes opaque tubes being baited.but is sometimes prevented.from seeing the baiting. The observations that the subjects look more if baiting was not seen and.are more accurate if baiting was seen have been taken as evid.nce for metacognition in information-seeking experiments. We propose simple alternative hypotheses that are sufficient to explain putative evid.nce for information seeking in animals without positing metacognition. The alternative explanation focuses on two relatively simple principles： First, an animal has a d.fault ＂look before you go＂ response which supersed.s rand.m searches in space. Second. spatially guid.d.behavior follows a d.fault rule of ＂go where something good.is.＂ These principles can explain the results of tube tipping experiments without proposing metacognition [Current Zoology 57 （4）： 531-542, 2011].

关键词： Metacognition Metacognitive control Information seeking Metacognitive monitoring Information monitoring Comparative cognition

An efficient Multi-Scale Mod.lling Approach for ssd.A Motion in Fluid.Flow

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Journal of Bionic engineering 2008年第4期5卷 299-307页

作者： M. Benke e. Shapiro d. d.ikakis Fluid.Mechanics and.Computational Science Group Department of Aerospace Sciences Cranfield University

The paper presents a multi-scale mod.lling approach for simulating macromolecules in fluid.flows. Macromolecule transport at low number d.nsities is frequently encountered.in biomed.cal d.vices, such as separators, d.tection and.analysis systems. accurate mod.lling of this process is challenging d.e to the wid. range of physical scales involved. The continuum approach is not valid.for low solute concentrations, but the large timescales of the fluid.flow make purely molecular simulations prohibitively expensive. A promising multi-scale mod.lling strategy is provid.d.by the meta-mod.lling approach consid.red.in this paper. Meta-mod.ls are based.on the coupled.solution of fluid.flow equations and.equations of motion for a simplified.mechanical mod.l of macromolecules. The approach enables simulation of ind.vid.al macromolecules at macroscopic time scales. Meta-mod.ls often rely on particle-corrector algorithms, which impose length constraints on the mechanical mod.l. lack of robustness of the particle-corrector algorithm employed.can lead.to slow convergence and.numerical instability. A new FAst linear COrrector （FAlCO） algorithm is introd.ced.in this paper, which significantly improves computational efficiency in comparison with the wid.ly used.SHAKe algorithm. Valid.tion of the new particle corrector against a simple analytic solution is performed.and.improved.convergence is d.monstrated.for ssd.A motion in a lid.d.iven micro-cavity.

关键词： multi-scale mod.lling d.A macromolecule transport meta-mod.lling particle corrector