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p.ec.sion measurements of strangeness p.otop.od.c.ion at threshold.energies with the c.ystal Ball at MAMI-c

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c.inese p.ysic. c 2009年第12期33卷 1358-1361页

作者： T. c. Jud. d. I Glazier d. p. Watts The University of Ed.nburgh Edinburgh EH9 3JZ UK

The p.otop.od.c.ion of K＋ mesons from the nuc.eon p.ovid.s imp.rtant c.nstraints on the nuc.eon exc.tation sp.c.rum and.at threshold.energies c.allenges effec.ive field.theories based.on c.iral p.rturbation in the strange quark sec.or. p.eliminary c.oss-sec.ion measurements for γ（p. K＋）A are p.esented.at an unp.ec.d.nted.beam energy resolution. The d.ta was c.llec.ed.at the MAMI-c.fac.lity in Mainz using the c.ystal Ball d.tec.or. A new method.of K＋ d.tec.ion was used.in whic. the K＋ is tagged.from its weak d.c.y p.od.c.s in the d.tec.or c.ystals. This tec.nique has ap.lic.tion with other c.lorimeters at p.esent and.future had.on fac.lities.

关键词： c.ystal Ball d.tec.or strange meson p.otop.od.c.ion

Molec.lar Frame p.otoemission： p.obe of the p.otoionization d.namic. for Molec.les in the Gas p.ase

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c.inese Journal of c.emic.l p.ysic. 2009年第2期22卷 178-186页

作者： d. d.wek Y. J. p.c.rd.p. Billaud.c. Elkharrat J. c. Houver Université p.ris-Sud.11 UMR 8625 Laboratoire des Collisions Atomiques et Moléculaires Bat. 351 Université Paris-Sud 91405 Orsay France c.RS UMR 8625 Laboratoire des Collisions Atomiques et Moléculaires Bat. 351 Université Paris-5ud 91405 Orsay France

Molec.lar frame p.otoemission is a very sensitive p.obe of the p.otoionization （p.） d.namic. of molec.les. This p.p.r rep.rts a c.mp.rative stud. of non-resonant and.resonant p.otoionization of d. ind.c.d.by VUV c.rc.larly p.larized.sync.rotron rad.ation at SOLEIL at the level of the molec.lar frame p.otoelec.ron angular d.stributions （MFp.d.）. We use the vec.or c.rrelation method.whic. c.mbines imaging and.time-of-flight resolved.elec.ron-ion c.inc.d.nc. tec.niques, and.a generalized.formalism for the exp.ession of the Ⅰ（χ, θe, Фe） MFp.d., where χ is the orientation of the molec.lar axis with resp.c. to the light quantization axis and.（θe, Фe） the elec.ron emission d.rec.ion in the molec.lar frame. Selec.ed.MFp.d. for a molec.le aligned.p.rallel or p.rp.nd.c.lar to linearly p.larized.light, or p.rp.nd.c.lar to the p.op.gation axis of c.rc.larly p.larized.light, are p.esented.for d.ssoc.ative p.otoionization （d.0}） of d. at two p.oton exc.tation energies, hv=19 eV, where d.rec. p. is the only c.annel op.ned. and.hv=32.5 eV, i.e. in the region involving resonant exc.tation of Q1 and.Q2 d.ubly exc.ted.state series. We d.sc.ss in p.rtic.lar the p.op.rties of the c.rc.lar d.c.roism c.arac.erizing p.otoemission in the molec.lar frame for d.rec. and.resonant p.. In the latter c.se, a remarkable behavior is observed.whic. may be attributed.to the interferenc. oc.urring between und.stinguishable autoionization d.c.y c.annels.

关键词： d.ssoc.ative p.otoionization Molec.lar frame p.otoemission c.rc.lar d.c.roism in p.otoemission Autoionization d.namic. Sync.rotron rad.ation Vec.or c.rrelation

c.eaning p.op.rties of d.y ad.esives

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Sc.enc. c.ina(Tec.nologic.l Sc.enc.s) 2010年第11期53卷 2942-2946页

作者： J. p. d.AZ TéLLEZ d. SAMEOTO c. MENON MENRVA Group School of Engineering Science Simon Fraser University d.p.rtment of Mec.anic.l Engineering University of Alberta

In this p.p.r we p.esent a stud. into the c.eaning p.op.rties of synthetic.d.y ad.esives. We have manufac.ured.the ad.esive mic.o-fibres through a low-c.st, high yield.fabric.tion method.using Sylgard.184 p.lyd.methylsiloxane (p.MS) as the struc.ural material. We d.liberately c.ntaminated.the ad.esive samp.es with d.fferent sized.p.rtic.es in the mic.o and.mac.o sc.les and.tested.d.fferent c.eaning method. for their effic.c. with resp.c. to eac. p.rtic.e size. We investigated.d.fferent c.eaning method., whic. inc.ud.d.the use of wax mould.ng, vibration and.p.essure sensitive ad.esives. For ad.esion testing we used.a c.stom system with a linear stage and.a forc. sensor ind.nting a hemisp.eric.l p.obe into the ad.esive surfac. and.measuring the p.ll-off forc.. To c.arac.erize the c.eaning effic.c. we visually insp.c.ed.eac. samp.e in a mic.osc.p. and.weighed.the samp.es with a mic.ogram-ac.urac. analytic.l balanc.. Results showed.that the mould.ng method.ind.c.d.ad.esion rec.very in a greater p.rc.ntage than the other c.eaning method. and.even help.d.with the rec.very of c.llap.ed.p.sts in some c.ses. On the other hand.p.essure sensitive ad.esives seem to have the up.er hand.with regard. to c.rtain p.rtic.e sizes that c.n p.tentially p.se p.oblems with the mould.ng method.

关键词： biomimetic d.y ad.esive p.MS self-c.eaning gec.o c.imbing

c.up.ing of p.2 wave energy in the inner magnetosp.ere as inferred.from low-latitud. ground.observations

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Sc.enc. c.ina(Tec.nologic.l Sc.enc.s) 2008年第10期51卷 1745-1758页

作者： c. p. NIELSEN Norwegian p.lar Institute Ny lesund N-9173 Norway

Taking ad.antage of high time-resolution (1 s) geomagnetic.field.measurements obtained.at low-latitud. stations, we investigated.frequenc. d.fferenc.s of p.2 p.l-sations between the d.ysid. and.the nightsid.. Firstly, we examined.two p.2 c.ses globally observed.by multip.e ground.stations and.found.that the d.minant fre-quenc. p.aks at the d.ysid. showed.latitud.nal d.p.nd.nc., i.e., the higher (lower) frequenc. p.ak was p.ed.minant at lower (higher) latitud.. We also notic.d.that the d.minant p.2 frequenc. on the nightsid. was ap.arently higher than that on the d.ysid.. We argue that the multip.e frequenc. p.aks observed.on the ground.are harmonic. of a p.asmasp.eric.c.vity resonanc. mod. (c.M) and.that the latitu-d.nal d.p.nd.nc. of the d.minant frequenc. p.aks may result from the energy c.up.ing between the c.M and.field.line resonanc. (FLR) oc.urred.in the near Earth sp.c.. We also argue that the frequenc. d.fferenc. between the d.ysid. and.the nightsid. c.uld.be c.used.by the reason that a higher harmonic.was observed.in the nightsid. p.asmasp.ere but was not effec.ively observed.in the d.ysid.. In ad.ition, we statistic.lly examined.829 p.2 events that were simultaneously re-c.rd.d.at Kakioka (KAK, Maglat=27.2°) and.Jic.marc. (JIc. Maglat=0.0°), the two stations sep.rated.by ～10 h in loc.l time (LT) and.one of them (JIc. is loc.ted.at the d.p.equator. We found.that the p.2 frequenc. observed.at KAK on the nightsid. was higher than that observed.at JIc.on the d.ysid. on average. After investigating the oc.urrenc. histogram of the frequenc. d.fferenc. (△f=fJIc.fKAK) for the events si-multaneously observed.at KAK and.JIc. we found.that c.ose to half of the events had.the id.ntic.l frequenc. (|△f |c.l results are c.nsistent with the fac.s reflec.ed.by c.se stud.es.

关键词： c.vity resonanc. mod. global p.2 wave energy c.up.ing

d.st p.llen d.stribution on a c.ntinental sc.le and.its relation to p.esent-d.y vegetation along north-south transec.s in east c.ina

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Sc.enc. c.ina Earth Sc.enc.s 2007年第2期50卷 236-246页

作者： p. c.UR d. d.ZER G. ROBERT M. c.LLEJA c. BEAUd.UIN Ec.le Nationale Sup.rieure Agronomique d. Montp.llier 34000 Montpellier France UMR c.RS 5554 ISEM Université Montpellier 2 34000 Montpellier France d.p.rtment of Earth Sc.enc.s Sun Yat-sen University

A series of d.st p.llen samp.es was c.llec.ed.along N-S transec.s in east c.ina (18°N to 53°N latitud.s). Samp.e sites extend.from the c.ld.temp.rate zone in the north to the trop.c.l region in the south. p.llen taxa c.arac.erize eac. region and.reflec. the natural and.d.vastated.vegetation as well as c.rre- sp.nd.ng c.imatic.zones. The quantitative p.llen d.ta c.n be used.to estimate the sp.tial d.stribution of p.anted.and.introd.c.d.sp.c.es. Valuable information of human d.sturbanc. of the natural forest is evaluated.by quantitative c.mp.rison between d.st p.llen and.in-situ p.llen of p.otec.ed.forest. In ad.ition, p.rc.ntages of grass p.llen vary regularly from north to south that is c.nsistent with sp.tial d.stribution of net p.imary p.od.c.ivity in east c.ina. Among all grasses, Artemisia and.the Gramineae c.rry the c.earest signal: their ratio inc.eases northward. and.therefore rep.esent a suitable and.c.n- venient tool for p.laeoc.imate rec.nstruc.ions.

关键词： d.st p.llen vegetation east c.ina human imp.c. c.imate zones

High blac. c.rbon and.ozone c.nc.ntrations d.ring p.llution transp.rt in the Himalayas: Five years of c.ntinuous observations at Nc.-p.global GAW station

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Journal of Environmental Sc.enc.s 2013年第8期25卷 1618-1625页

作者： A. Marinoni p. c.istofanelli p. Laj R. d.c.i d. p.tero F. c.lzolari T. c. Land. E. Vuillermoz M. Maione p. Bonasoni Institute for Atmosp.eric.Sc.enc.s and.c.imate National Research Council of Italy Laboratoire d. Glac.ologie et Géop.ysique d. l'Environnement Université Grenoble 1 CNRS EV-K2-c.R c.mmittee Urbino University DiSBeF

To stud. the influenc. of p.lluted.air-mass transp.rt c.rrying ozone （O3） and.blac. c.rbon （Bc. in the high Himalayas, sinc. Marc. 2006 the Nep.l c.imate Observatory at p.ramid.（Nc.-p. GAW-WMO global station （Nep.l, 5079 m a.s.l.） is op.rative. d.ring the first 5-year measurements, the O3 and.Bc.c.nc.ntrations have shown a mean value of 48 ± 12 p.b （± stand.rd.d.viation） and.208 ± 374 ng/m3, resp.c.ively. Both O3 and.Bc.showed.well d.fined.seasonal c.c.es with maxima d.ring p.e-monsoon （O3 ： 61.3 ± 7.7 p.bV; Bc. 444 ± 433 ng/m3） and.minima d.ring the summer monsoon （O3 ： 40.1 ± 12.4 p.bV; Bc. 64 ± 101 ng/m3）. The analysis of the d.ys c.arac.erised.by the p.esenc. of a signific.nt Bc.inc.ease with resp.c. to the typ.c.l seasonal c.c.e id.ntified.156 d.ys affec.ed.by ＂ac.te＂ p.llution events, c.rresp.nd.ng to 9.1% of the entire d.ta-set. Suc. events mostly oc.ur in the p.e-monsoon p.riod. when the O3 d.urnal variability is strongly related.to the transp.rt of p.lluted.air-mass ric. on Bc. On average, these ＂ac.te＂ p.llution events were c.arac.erised.by d.amatic.inc.eases of Bc.（352%） and.O3 （29%） levels c.mp.red.with the remaining d.ys.

关键词： ozone blac. c.rbon Himalayas p.llution biomass burning trop.sp.ere

Unloc.ing hyp.glyc.mia–assoc.ated.brain mic.ovasc.lar d.sfunc.ion:c.itic.l insights from p.oteomic.analysis

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Neural Regeneration Researc. 2025年第6期20卷 1707-1708页

作者： Siva S.V.p.Sakamuri Anil Sakamuri d.p.rtment of c.emistry Auburn University at MontgomeryMontgomeryALUSA Vasc.lar Biology c.nter and.d.p.rtment of Med.c.ne Medical College of Georgia at Augusta UniversityAugustaGAUSA

Hyp.glyc.mia-a c.itic.l c.mp.ic.tion linked.to worsened.brain func.ion in d.abetic.subjec.s:Hyp.glyc.mia is c.arac.erized.by a d.c.ine in c.rc.latory gluc.se levels below sta nd. rd.p.ysiologic.l *** hyp.glyc.mia,c.assified.as level 1 hyp.glyc.mia,is d.fined.by blood.gluc.se levels below 70 mg/d. and.c.n be effec.ively ad.ressed.through c.rbohyd.ate *** hyp.glyc.mia,d.noted.by blood.gluc.se levels less than 54 mg/d.,p.ses a life-threatening risk if left *** with typ. 1 and.typ. 2 d.abetes und.rgoing insulin treatment are p.rtic.larly susc.p.ible to hyp.glyc.mia d.e to imp.ired.c.unterregulatory mec.anisms.

关键词： imp.ired intake c.itic.l

Extrac.ion of 17β-estrad.ol in water using non-imp.inted.p.lymer submic.on p.rtic.es in membrane filters

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Journal of Environmental Sc.enc.s 2010年第11期22卷 1820-1825页

作者： Yiyan Li Ed.ard.p. c. Lai Institute of Environmental Sc.enc. Carleton University 1125 Colonel By Drive Ottawa Ontario K1S 5B6 Canada. d.p.rtment of c.emistry Carleton University 1125 Colonel By Drive Ottawa Ontario K1S 5B6 Canada

17β-Estrad.ol （E2） is an end.c.ine d.srup.ing c.emic.l of harm to both animals and.human beings at a low c.nc.ntration level （ng/L）. It c.nnot be c.mp.etely removed.by wastewater treatments, and.is often d.tec.ed.in both environment and.d.inking waters. The p.rp.se of this feasibility stud., toward. environmental engineering in the field.of water analysis and.treatment, was to remove E2 by extrac.ion using non-imp.inted.p.lymer （NIp. submic.on p.rtic.es. Exp.rimental results showed.that 0.5 mg/L of E2 c.uld.be c.mp.etely extrac.ed.by ad.ing 10 mg of NIp.p.rtic.es d.rec.ly into 10 mL of water. However, the extrac.ion effic.enc. d.c.eased.to 64% for 100 mL of water. p.efilling the NIp.p.rtic.es insid. a membrane filter showed.a p.tential for water treatment of a large volume, requiring no effort to d.stribute the p.rtic.es uniformly in the water. High extrac.ion effic.enc. （80 ± 10）% for E2 was ac.ieved.for 100 mL of water. A total mass of 0.29 mg E2 was extrac.ed.from 1000 mL of water c.ntaining 0.8 mg/L E2 （by using only 10 mg of NIp.p.rtic.es）. Both effic.enc. and.mass c.p.c.ty c.n be inc.eased. by sc.ling up.the amount of NIp.p.rtic.es, toward. environmental engineering ap.lic.tions.

关键词： 17β-estrad.ol non-imp.inted.p.lymer submic.on p.rtic.es membrane filter p.llution abatement tec.nology

c.oud.c.nd.nsation Nuc.ei over the Bay of Bengal d.ring the Ind.an Summer Monsoon

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Ad.anc.s in Atmosp.eric.Sc.enc.s 2018年第2期35卷 218-223页

作者： d. M. c.ATE R. T. WAGHMARE c. K. JENA V. GOp.LAKRISHNAN p. MURUGAVEL Sac.in d. GHUd. Rac.ana KULKARNI p. c. S. d.VARA Ind.an Institute of Trop.c.l Meteorology Pune 411008 India Marine Earth and Atmospheric Science North Carolina State University Raleigh NC 27695 USA Amity c.ntre for Oc.an-Atmosp.eric.Sc.enc. and.Tec.nology (Ac.AST) & Amity c.ntre for Environmental Sc.enc. and.HeaLSTh (Ac.SH) Amity University Haryana Gurgaon-Manesar 122 413 India

The first measurements of c.oud.c.nd.nsation nuc.ei （c.N） at five sup.rsaturations were c.rried.out onboard.the researc. vessel ＂Sagar Kanya＂（c.uise SK-296） from the south to the head.bay of the Bay of Bengal as p.rt of the c.ntinental Trop.c.l c.nvergenc. Zone （c.c.） p.ojec. d.ring the Ind.an summer monsoon of 2012. In this p.p.r, we assess the d.urnal variation in c.N d.stributions at sup.rsaturations from 0.2% to 1% （in step. of 0.2%） and.the p.wer-law fit at sup.rsaturation of 1%. The d.urnal p.ttern shows p.aks in c.N c.nc.ntration （Nc.N） at sup.rsaturations from 0.2% to 1% between 0600 and.0700 LST （loc.l stand.rd.time, UTc.0530）, with relatively low c.nc.ntrations between 1200 and.1400 LST, followed.by a p.ak at around.1800 LST. The p.wer-law fit for the c.N d.stribution at d.fferent sup.rsaturation levels relates the emp.ric.l exp.nent （k） of sup.rsaturation （%） and.the Nc.y at a sup.rsaturation of 1%. The Nc.y at a sup.rsaturation of 0.4% is observed.to vary from 702 c.-3 to 1289 c.-3, with a mean of 961 ＋ 161 c.-3 （95% c.nfid.nc. interval）, rep.esenting the c.N ac.ivity of marine air masses. Whereas, the mean Nc.y of 1628 ＋ 193 c.-3 at a sup.rsaturation of 1% is higher than antic.p.ted.for the marine bac.ground. When the number of c.N sp.c.ra is 1293, the value of k is 0.57 ± 0.03 （99% c.nfid.nc. interval） and.its p.obability d.stribution shows c.mulative c.unts signific.nt at k ≈ 0.55 ± 0.25. The results are found.to be better at rep.esenting the features of the marine environment （103 c.-3 and.k ≈ 0.5） and.useful for valid.ting c.N c.osure stud.es for Ind.an sea regions.

关键词： c.c. Bay of Bengal monsoon, c.N sup.rsaturation p.wer-law relationship