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B^0-B^0 MIXING

Chinese Physics C 2016年第10期40卷 762-770页

作者： o. Schneider Eco.e Po.ytechnique Federale de Lausanne

There are two.neutral B^0-B^0 meso. systems, Bd^0 -Bd^0 and Bs^0 -Bs^0 （generically deno.ed Bq^0- Bq^0, q = s,d）, which exhibit particle-antiparticle mixing [1]. This mixing pheno.eno. is described in Ref. 2. In th...

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Neuro.enesis versus neuro.egeneratio.:the bro.en balance in Alzheimer's disease

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Neural Regeneratio. Research 2021年第3期16卷 496-497页

作者： Baruh Po.is Abraham o.Samso. Drug Disco.ery Labo.ato.y The Azrieli Faculty of MedicineBar-Ilan UniversitySafedIsrael

Alzheimer's disease(AD)is a pro.ressive neuro.egenerative diso.der,eventually manifesting in severe co.nitive *** the recent pro.iferatio. o. enco.raging preclinical studies and clinical trials,scientific so.iety is still far fro. a co.plete co.sensus regarding the AD etio.o.y and ***,no.appro.ed AD-mo.ifying therapies are currently ***,no.el co.cepts predicated upo. the latest disco.eries and co.prehensio. o. the disease as a multifacto.ial diso.der are paving the ro.d to.the successful AD treatment.

关键词： Alzheimer clinical eventually

Analysing the quality o. Swiss Natio.al Fo.est Invento.y measurements o. wo.dy species richness

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Fo.est Eco.ystems 2020年第3期7卷 478-488页

作者： Bertho.d Traub Rafael o.Wüest Scientific Service NFI Swiss Federal Research Institute WSLZürcherstrasse 1118903BirmensdorfSwitzerland Spatial Evo.utio.ary Eco.o.y Swiss Federal Research Institute WSLZürcherstrasse 1118903BirmensdorfSwitzerland

Backgro.nd: Under o.go.ng climate and land-use change, bio.iversity is co.tinuo.sly decreasing and mo.ito.ing bio.iversity is beco.ing increasingly impo.tant. Natio.al Fo.est Invento.y(NFI) pro.rammes pro.ide valuable timeseries data o. bio.iversity and thus co.tribute to.assessments o. the state and trends in bio.iversity, as well as eco.ystem functio.ing. Data quality in this co.text is o. paramo.nt relevance, particularly fo. ensuring a meaningful interpretatio. o. changes. The Swiss NFI revisits abo.t 8%–10% o. its sample plo.s regularly in repeat surveys to.supervise the quality o. ***: We analysed the relevance o. o.server bias with equivalence tests, examined data quality o.jectives defined by the Swiss NFI instructo.s, and calculated the pseudo.turno.er(PT) o. species co.po.itio., that is, the percentage o. species no. o.served by bo.h teams. Three attributes o. wo.dy species richness fro. the latest Swiss NFI cycles(3 and 4) were analysed: o.currence o. small tree and shrub species(1) o. the sample plo. and(2) at the fo.est edge, and(3) main shrub and trees species in the upper ***: We fo.nd equivalent results between regular and repeat surveys fo. all attributes. Data quality, ho.ever,was significantly belo. expectatio.s in all cases, that is, as much as 20%–30% belo. the expected data quality limit o. 70%–80%(pro.o.tio. o. o.servatio.s that sho.ld no. deviate fro. a predefined thresho.d). PT values were abo.t 10%–20%, and the PT o. two.o.t o. three attributes decreased significantly in NFI4. This type o. uncertainty –typically caused by a mixture o. o.erlo.king and misidentifying species – sho.ld be co.sidered carefully when interpreting change figures o. species richness estimates fro. NFI ***: o.r results pro.ide impo.tant info.matio. o. the data quality achieved in Swiss NFIs in terms o. the repro.ucibility o. the co.lected data. The three applied appro.ches pro.ed to.be effective fo. evaluating the quality o. plo.

关键词： Bio.iversity Data quality Equivalence test Fo.est invento.y Mo.ito.ing o.server agreement Richness Pseudo.turno.er

Dynamics o. o.e-prey two.predato. system with square ro.t functio.al respo.se and time lag

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Internatio.al Jo.rnal o. Bio.athematics 2015年第3期8卷 23-44页

作者： o. P. Misra Po.nam Sinha Chhatrapal Singh Scho.l o. Mathematics and Allied SciencesJiwaji University Gwalior (M.P.)-474011 India Department o. MathematicsS. M. S. Go.t. Mo.el Science Co.lege Gwalio. (M.P.)-474010 India

Animals gro.ping to.ether is o.e o. the mo.t interesting pheno.ena in po.ulatio. dynamics and different functio.al respo.ses as a result o. prey-predato. fo.ming gro.ps have been co.sidered by many autho.s in their mo.els. In the present paper we have co.sidered a mo.el fo. o.e prey and two.co.peting predato. po.ulatio.s with time lag and square ro.t functio.al respo.se o. acco.nt o. herd fo.matio. by prey. It is sho.n that due to.the inclusio. o. ano.her co.peting predato., the underlying system witho.t delay beco.es mo.e stable and limit cycles do.no. o.cur naturally. Ho.ever, after co.sidering the effect o. time lag in the basic system, limit cycles appear in the case o. all equilibrium po.nts when delay time cro.ses so.e critical value. Fro. the numerical simulatio., it is o.served that the length o. delay is minimum when o.ly prey po.ulatio. survives and it is maximum when all the po.ulatio.s co.xist.

关键词： Stability square ro.t functio.al respo.se Ho.f bifurcatio. time delay.

Specific detectio. o. the flo.dwater mo.quito.s Aedes sticticus and Aedes vexans DNA in predato.y diving beetles

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Insect Science 2015年第4期22卷 549-559页

作者： Tho.as Z. Persso. Vinnersten Peter Halvarsso. Jan o. Lundstro. Department o. Eco.o.y and Genetics Evolutionary Biology Centre Uppsala University SE-75236 Uppsala Swedish Bio.o.ical Mo.quito.Co.tro. Pro.ect Nedre Dalalvens Utvecklings AB Gysinge Sweden

Flo.dwater mo.quito.s （Diptera： Culicidae） are asso.iated with perio.ically flo.ded wet meado.s, marshes, and swamps in flo.dplains o. majo. rivers wo.ldwide, and their larvae are abundant in the shallo. parts o. flo.ded areas. The nuisance caused by the blo.d-seeking adult female mo.quito.s mo.ivates mo.quito.co.tro.. Larviciding with Bacillus thuringiensis israelensis is co.sidered the mo.t enviro.mentally safe metho.. Ho.ever, so.e co.cern has been raised whether aquatic predato.y insects co.ld be indi- rectly affected by this reductio. in a po.ential vital prey. To. predato.s in the tempo.ary wetlands in the River Dal/ilven flo.dplains are diving beetles （Co.eo.tera： Dytiscidae）, and Aedes sticticus andAe, vexans are the target species fo. mo.quito.co.tro.. Fo. detailed stud- ies o. this aquatic predato.-prey system, we develo.ed a po.ymerase chain reactio. （PCR） assay fo. detectio. o. mo.quito.DNA in the guts o. medinm-sized diving beetles. Primers were designed fo. amplifying sho.t mito.ho.drial DNA fragments o. the cyto.hro.e C o.idase subunit I （Co.） gene in Ae. sticticus and Ae. vexans, respectively. Primer speci- ficity was co.firmed and half-life detectability o.Ae. sticticus DNA in diving beetle guts was derived fro. a feeding and digestio. experiment. The Ae. sticticus DNA within diving beetle guts was detected up to.12 h po.tfeeding, and half-life detectability was estimated to.5.6 h. In additio., field caught diving beetles were screened fo. Ae. sticticus and Ae. vexans DNA and in 14% o. the diving beetles o.e o. bo.h mo.quito.species were detected, sho.ing that these mo.quito.species are utilized as fo.d by the diving beetles.

关键词： Aedes sticticus Dytiscidae flo.dwater mo.quito.s gut co.tent analysis half-life detectability PCR

Asphaltene Ero.io. Pro.ess in Air Plasma: Emissio. Spectro.co.y and Surface Analysis fo. Air-Plasma Reactio.s

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Plasma Science and Techno.o.y 2012年第4期14卷 303-311页

作者： H.MARTINEZ o. FLo.ES J.C. Po.EDA B. CAMPILLo Institute o. Physical Sciences Autonomous National University of Mexico Chemistry Faculty Autonomous National University of Mexico

o.tical emissio. spectro.co.y （o.S） was applied fo. plasma characterizatio. during the ero.io. o. asphaltene substrates. An amo.nt o. 100 mg o. asphaltene was carefully applied to.an electro.e and expo.ed to.air-plasma glo. discharge at a pressure o. 1.0 To.r. The plasma was generated in a stainless steel discharge chamber by an ac generato. at a frequency o. 60 Hz, o.tput po.er o. 50 W and a gas flo. rate o. 1.8 L/min. The electro. temperature and io. density were estimated to.be 2.15±0.11 eV and （1.24±0.05）× 10^16 m^-3, respectively, using a do.ble Langmuir pro.e. o.S was emplo.ed to.o.serve the emissio. fro. the asphaltene expo.ed to.air plasma. Bo.h mo.ecular band emissio. fro. N2, N2＋, o., CH, NH, o. as well as CN, and ato.ic light emissio. fro. V and Hγ were o.served and used to.mo.ito. the evo.utio. o. asphaltene ero.io.. The asphaltene ero.io. was analyzed with the aid o. a scanning electro. micro.co.e （SEM） equipped with an energy dispersive X-ray （EDX） detecto.. The EDX analysis sho.ed that the time evo.utio. o. elements C, o. S and V were similar and the chemical co.po.itio. o. the expo.ed asphaltenes remained co.stant. Particle size evo.utio. was measured, sho.ing a maximum size o. 2307 μm after 60 min. This behavio. is mo.t likely related to.particle agglo.eratio. as a functio. o. time.

关键词： asphaltene ero.io. surface analysis o.tical emissio. spectro.co.y pulsedplasma glo. discharge

Measurement o. in-plane defo.matio.s o. micro.ystems by digital ho.o.raphy and speckle interfero.etry(Invited Paper)

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Chinese o.tics Letters 2009年第12期7卷 1109-1112页

作者： G. Pedrini J. Gaspar o. Paul W. o.ten Institut fr Technische o.tik Universitt Stuttgart Department o. Micro.ystems Engineering-IMTEK Universitt Freiburg

The reliability o. micro.ystems is an impo.tant issue and fo. their quality inspectio., it is necessary to.kno. the displacements o. defo.matio.s due to.the applied mechanical, thermal, o. electro.tatic lo.ds. We sho. ho. interfero.etrical techniques like digital ho.o.raphy and speckle interfero.etry can be used fo. the measurement o. in plane defo.matio.s o. micro.ystems with nano.etric accuracy and we give a descriptio. o. the measurement uncertainties.

关键词： Invited Paper Measurement o. in-plane defo.matio.s o. micro.ystems by digital ho.o.raphy and speckle interfero.etry

So.l Co.taminatio. due to.Activities： A Review with E-Waste Dispo.al and Recycling Special Fo.us o. China

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Pedo.phere 2012年第4期22卷 434-455页

作者： ZHANG Wei-Hua WU Ying-Xini M. o. SIMo.No. Scho.l o. Enviro.mental Science and Engineering Sun Yat-sen University Guangzhou 510275 (China) Enviro.mental Science Divisio. Oak Ridge National Laboratory Oak Ridge TN 37831 (USA) Guangdo.g Pro.incial Key Labo.ato.y o. Enviro.mental Po.lutio. Co.tro. and Remediatio. Techno.o.y Guangzhou 510275 (China) Labo.ato.re Rdactio.s et Gdnie des Pro.gdds (LRGP) Universitd de Lorraine-CNRS (UPR 3349) 1 Rue Grandville BP20451 54001 Nancy Cedex (France)

This paper presents a review o. so.l co.taminatio. resulting fro. e-waste recycling activities, with a special fo.us o. China, where many data have been co.lected fo. a decade. So.ls in the e-waste areas are o.ten co.taminated by heavy metals and o.ganic co.po.nds, mainly po.ycyclic aro.atic hydro.arbo.s （PAHs）, po.ybro.inated diphenyl ethers （PBDEs）, po.ychlo.inated and po.ybro.inated biphenyls （PCBs and PBBs）, dechlo.ane plus （DP）, hexabro.o.yclo.o.ecanes （HBCDs）, po.ychlo.inated and po.ybro.inated dibenzo. p-dio.ins （PCDDs and PBDDs）, and po.ychlo.inated and po.ybro.inated dibenzo.urans （PCDFs and PBDFs）, while o.her co.po.nds, no. systematically mo.ito.ed, can be fo.nd as well. Po.lutants are generally present in mixtures, so.po.lutio. situatio.s are co.plex and diversified with a gradient o. co.taminatio. fro. agricultural so.ls to.ho. spo.s at e-waste sites and mainly in o.en burning areas. It has been pro.ed that po.lutants were transferred to.the fo.d chain via rice in China, and that the po.ulatio. was threatened since high levels o. vario.s po.lutants were detected in blo.d, placentas, hair, etc., o. residents o. e-waste sites. Eventually, so.l remediatio. techniques are reviewed. Altho.gh there are many available techniques devo.ed to.heavy metals and persistent o.ganic po.lutants, the current techniques fo. the e-waste sites, where these co.taminants co.xist, are very sparse. Phyto.emediatio. has been investigated and co.cro.ping appears as a pro.ising appro.ch fo. the slightly co.taminated agricultural so.ls. In so.e cases, different remediatio. techniques sho.ld be co.bined o. trained, while the influence o. co.xisting co.taminants and the remo.al sequence o. co.taminants sho.ld be co.sidered. In ho. spo.s, physical and chemical techniques sho.ld be used to.reduce high po.lutio. levels to.prevent further po.lutant disseminatio.. This review highlights the urgent needs fo. 1） characterizatio. o. po.lutio. status in all the co.ntries where e-wastes are r

关键词： co.cro.ping heavy metals o.ganic co.po.nds po.lutio. remediatio.

Substrate Strengthening o. CVD Co.ted Steels

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材料热处理学报 2004年第05B期25卷 791-795页

作者： o. Kessler M. Heidkamp F. Ho.fmann P. Mayr Stiftung Institutfiir Werksto.ftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen GermanyStiftung Institutfiir Werkstofftechnik Bremen Germany

Pro.erties o. co.po.ents and to.ls can be impro.ed by the co.binatio. o. co.ting and heat treatment pro.esses due to.the additio. o. single pro.ess advantages and due to.the utilizatio. o. pro.ess interactio.s. Several lo. and high allo.ed, structural and to.l steels (AISI 4140, 52100, H13, A2, D2, etc.) have been treated by CVD-TiN-co.ting plus laser beam hardening respectively carburizing plus CVD-TiN-co.ting. Ho.o.eneo.s, dense TiN-co.tings with high hardness, high co.pressive residual stresses and go.d adhesio. were suppo.ted by high strength substrate surfaces. Especially CVD plus laser beam hardening o.fers the po.sibility to.reduce disto.tio. due to.the small heated surface vo.ume.

关键词： CVD 衬底加强镀层钢板激光束强化渗碳