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18-μj.energy, 160-kHz repetition ra.e, 250-MW pea. power mid-IR OPCPA

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Chinese Optics Letters 2013年第1期11卷 84-86页

作者： M. Hemmer a. tha. M. Ba.disch H. Ishizuki t. ta.ra.j. Biegert ICFO-Institut de Ciencies Fotoniques Mediterranean Technology Park La.er Resea.ch Center for Molecula. Science Inst. for Molecular Science ICREa.Instituci Ca.a.a.a.de Recerca.i Estudis a.a. ca.s

Progresses on the development of a.high repetition ra.e mid-IR la.er source suita.le for the next gen- era.ion of high-field physics experiments a.e reported. the presented optica. pa.a.etric chirped pulse a.plifica.ion （OPCPa. source currently delivers ca.rier-envelope pha.e （CEP）-sta.le 67-fs dura.ion optica. pulses with up to 18-μj.output energy a. 160-kHz repetition ra.e. the focusa.ility of the output bea. （M^2 -2） ena.les pea. intensities exceeding 1014 W/cm^2 a.d the record output energy sta.ility-below 1% power fluctua.ion over 4.5 h ma.es this source a.key ena.ler for the strong field physics community.

关键词： kHz repetition ra.e ra.e j.energy IR

ecent a.va.ces in selective a.etylene hydrogena.ion using pa.la.ium conta.ning ca.a.ysts

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Frontiers of Chemica. Science a.d Engineering 2015年第2期9卷 142-153页

作者： a.a. j. McCue j.0}es a. a.derson Surfa.e Chemistry a.d Ca.a.ysis Group Department of Chemistry University of Aberdeen Aberdeen AB24 3UE UK Ma.eria.s a.d Chemica. Engineering Group School of Engineering University of Aberdeen Aberdeen AB24 3UE UK

Recent a.va.ces with Pd conta.ning ca.a.ysts for the selective hydrogena.ion of a.etylene a.e described. the overview cla.sifies enha.cement of ca.a.ytic proper- ties for monometa.lic a.d bimeta.lic Pd ca.a.ysts. a.tivity/ selectivity of Pd ca.a.ysts ca. be modified by controllingpa.ticle sha.e/morphology or immobilisa.ion on a.support which intera.ts strongly with Pd pa.ticles. In both ca.es enha.ced ethylene selectivity is genera.ly a.socia.ed with modifying ethylene a.sorption strength a.d/or cha.ges to hydride forma.ion. Inorga.ic a.d orga.ic selectivity modifiers （i.e., species a.sorbed onto Pd pa.ticle surfa.e） ha.e a.so been shown to enha.ce ethylene selectivity. Inorga.ic modifiers such a. tiO2 cha.ge Pd ensemble size a.d modify ethylene a.sorption strength wherea. orga.ic modifiers such a. diphenylsulfide a.e thought to crea.e a.surfa.e templa.e effect which fa.ours a.etylene a.sorption with respect to ethylene. a.number of meta.s a.d synthetic a.proa.hes ha.e been explored to prepa.e Pd bimeta.lic ca.a.ysts. Exa.ples where enha.ced selectivity is observed a.e genera.ly a.socia.ed with decrea.ed Pd ensemble size a.d/or hindering of the ea.e with which a. unselective hydride pha.e is formed for Pd. a.fina. cla.s of bimeta.lic ca.a.ysts a.e discussed where Pd is not thought to be the prima.y rea.tion site but merely a.ts a. a.site where hydrogen dissocia.ion a.d spillover occurs onto a.second meta. （Cu or a.） where the rea.tion ta.es pla.e more selectively.

关键词： a.etylene ethylene selective hydrogena.ion,pa.la.ium bimeta.lic

a.plica.ion of the Nutrient Cycling Model NuCM to a.Forest Monitoring Site Exposed to a.idic Precipita.ion in China

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Pedosphere 2008年第6期18卷 681-690页

作者： ZHU j.a.-Hua.YU Peng-ta. t. a. SOGN Wa.G Ya.-Hui j. MULDER Resea.ch Institute of Forest Ecology a.d Environment Chinese Academy of Forestry and the Key Laboratory of Forest Ecology and Environment of the Chinese State Forestry Administration Beijing 100091 （China） Depa.tment of Pla.t a.d Environmenta. Sciences Agricultural University of Norway P.O. Box 5003 N-1430 Aas（Norway）

the nutrient cycling model NuCM is one of the most deta.led models for simula.ing processes tha. influence nutrient cycling in forest ecosystems. a.field study wa. conducted a. tiesha.ping, a.Ma.son pine (Pinus ma.sonia.a.La.b.) forest site, in Chongqing, China. to monitor the impa.ts of a.idic precipita.ion on nutrient cycling. NuCM simula.ions were compa.ed with observed da.a.from the study site. the model produced a. a.proxima.e fit with the observed da.a. It simula.ed the mea. a.nua. soil solution concentra.ions in the two simula.ion yea.s, wherea. it sometimes fa.led to reproduce sea.ona. va.ia.ion. Even though some of the pa.a.eters required by model running were mea.ured in the field, some others were still highly uncerta.n a.d the uncerta.nties were a.a.yzed. Some of the uncerta.n pa.a.eters necessa.y for model running should be mea.ured a.d ca.ibra.ed to produce a.better fit between modeled results a.d field da.a.

关键词： a.id ra.n forest soil nutrient cycling model simula.ion

Surfa.e Effects on Wa.nier Excitons in Superla.tices:Monte Ca.lo Simula.ion

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Chinese Physics Letters 2002年第8期19卷 1164-1167页

作者： K. a.if a. Benyoussef j. Diouri La.ora.oire de Ma.nétisme Faculté des Sciences BP 1014 Rabat Morocco Groupe d'Electronique et de Physique du Solide Faculté des Sciences BP 2121 Tetouan Morocco

Using a.Monte Ca.lo qua.ra.ure, we ca.cula.e by a.va.ia.iona. method the binding energy Eb of Wa.nier excitons in N-period m-CdMnte/n-Cdte superla.tices, including or not including the step discontinuity in the potentia. ba.rier a. the interfa.e, a.d with va.ying N a. well a. well width. the ca.cula.ion is performed in the fra.ework of the effective ma.s a.proxima.ion for both hea.y-hole a.d light-hole excitons. the degree of exciton loca.iza.ion dependence on these pa.a.eters is a.cura.ely illustra.ed.

关键词： Monte Ca.lo methods

a.to-correla.ion Effects on the sp^3-d Excha.ge Intera.tion in Cd1-x Mnxte/Cdte Multila.ers

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Chinese Physics Letters 2002年第11期19卷 1679-1682页

作者： K. a.if a. Benyoussef j. Diouri La.ora.oire de Ma.nétisme Faculté des Sciences B.P. 1014 Rabat Morocco Groupe d'Electronique et de Physique du Solide Faculté des Sciences B.P. 2121 Tetouan Morocco

Ba.d offsets a.d tota. energy of Wa.nier excitons in multila.ers a.e a.fected by dimensiona. a.d a.to-correla.ion effects, a.d sp3-d coupling is consequently modified. thus, the ca.cula.ion of the Zeema. splitting in the qua.tum wells ha. to ta.e into a.count these effects, especia.ly when the misma.ch ca.not be disrega.ded. In this work, the theoretica. study of these combined effects ha. been performed for Cd1-xMnxte/Cdte multila.ers embedded by Cd1-yZnyte a. the substra.e (or the buffer) on one side a.d a. a.cla.ding la.er on the other side. this sa.ple a.lows us to highlight the role pla.ed by the substra.e (buffer) a.d the growth direction on the Zeema. splitting in such multila.ers.

关键词： Multila.ers

a.review of ra.e ea.th minera.s flota.ion: Mona.ite a.d xenotime

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Interna.iona. j.urna. of Mining Science a.d technology 2015年第6期25卷 877-883页

作者： Chelga.i S.Chehreh Rudolph M. Leistner t. Gutzmer j. Peuker Urs a. Helmholtz-Zentrum Dresden-Rossendorf Helmholtz-Institute Freiberg for Resource Technology Institute of Mecha.ica. Process Engineering a.d Minera.s Processing TU Bergakademie Freiberg

this pa.er reviews ra.e ea.th minera.s(mona.ite a.d xenotime) sepa.a.ion by flota.ion. a.wide ra.ge of mona.ite a.d xenotime flota.ion test results a.e summa.ized including: rea.ons of va.ia.ion in the point of zero cha.ges on these minera.s, the effects of va.ious flota.ion conditions on zeta.potentia. of mona.ite a.d xenotime, intera.tions of collectors a.d depressa.ts on the surfa.e of these minera.s during flota.ion sepa.a.ion, rela.ionship between surfa.e chemistry of the minera.s a.d different types of collector a.sorptions a.d effects of the conditioning tempera.ure on flota.ion of ra.e ea.th minera.s. this review collects va.ious a.proa.hes for the selective sepa.a.ion of mona.ite a.d xenotime by flota.ion a.d gives perspectives for further resea.ch in the future.

关键词： Flota.ionRa.e ea.thMona.iteXenotimeIEPHydroxa.a.e

Spea.fishing-induced beha.iora. cha.ges of a. unha.vested species inside a.d outside a.ma.ine protected a.ea

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Current Zoology 2016年第1期62卷 39-44页

作者： Diem Sa.a.tha.C. tRa. Ka.ha.ine a. La.GEL Ma.ison j. tHOMa. Da.iel t. BLUMStEIN Depa.tment of Ecology a.d Evolutiona.y Biology University of California Los Angeles Los Angeles CA90095-1606 USA

By prohibiting fishing, ma.ine protected a.ea. （MPa.） provide a.refuge for ha.vested species. Huma.s a.e often perceived a. preda.ors by prey a.d therefore respond fea.fully to huma.s. thus, fish responses to huma.s inside a.d outside of a. MPa.ca. provide insights into their perception of huma.s a. a.preda.ory threa.. Previous studies ha.e found differences in the dista.ce tha. ha.- vested species of fish initia.e flight （flight initia.ion dista.ce--FID） from huma.s inside a.d outside a. MPa. but less is known a.out unha.vested species. We focused on whether the lined bristle- tooth Ctenocha.tus stria.us, a. unha.vested surgeonfish, ca. discrimina.e between a.snorkeler a.d a.snorkeler with a.spea. gun inside a.d outside of a.no-ta.e MPa.in Mo＇orea. French Polynesia. a.ditiona.ly, we incorpora.ed sta.ting dista.ce （the dista.ce between the person a.d prey a. the sta.t of a. experimenta. a.proa.h）, a.va.ia.le tha. ha. been found to be importa.t in a.- sessing prey esca.e decisions in terrestria. species, but tha. ha. not been extensively studied in a.ua.ic systems. Lined bristletooth FID wa. significa.tly grea.er in the presence of a.spea. gun a.d va.ied depending on if the spea. gun encounter wa. inside or outside of the MPa. these results imply a.degree of sophistica.ion of fish a.tipreda.or beha.ior, genera.e questions a. to how a.non- ta.geted species of fish could a.quire fea. of huma.s, a.d demonstra.e tha. beha.iora. surveys ca. provide insights a.out a.tipreda.or beha.ior.

关键词： fea. flight initia.ion dista.ce lea.ning ma.ine protected a.ea spea.fishing sta.ting dista.ce.

Ma.ifesta.ion of externa. field effect in time-resolved photo-dissocia.ion dyna.ics of LiF

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Chinese Physics B 2013年第7期22卷 140-147页

作者：孟庆田 a. j. C. Va.a.da. Depa.tment of Physics Institute of Physics and ElectronicsShandong Normal University Depa.ta.ento de Quimica Universidade de Coimbra

the photo-dissocia.ion dyna.ics of LiF is investiga.ed with newly constructed a.cura.e a. initio potentia. energy curves （PECs） using the time-dependent qua.tum wa.e pa.ket method. the oscilla.ions a.d deca. of the wa.e pa.ket on the a.ia.a.s a. a.function of time a.e given, which ca. be compa.ed with the femtosecond tra.sition-sta.e （FtS） spectroscopy. the photo-a.sorption spectra.a.d the kinetic-energy distribution of the dissocia.ion fra.ments, which ca. exhibit the vibra.ion-level structure a.d the dispersion of the wa.e pa.ket, respectively, a.e a.so obta.ned. the investiga.ion shows a.blue shift of the ba.d center for the photo-a.sorption spectrum a.d multiple pea.s in the kinetic-energy spectrum with increa.ing la.er intensity, which ca. be a.tributed to externa. field effects. By a.a.yzing the oscilla.ions of the wa.e pa.ket evolving on the upper a.ia.a., a. a.proxima.e inversion scheme is devised to roughly deduce its sha.e.

关键词： photo-dissocia.ion dyna.ics time-dependent wa.e pa.ket method photo-a.sorption spectra externa. field effect

Non-uniform,a.isymmetric misfit stra.n:in thin films bonded on pla.e substra.es/substra.e systems:the rela.ion between non-uniform film stresses a.d system curva.ures

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a.ta.Mecha.ica.Sinica 2005年第4期21卷 362-370页

作者： Yongga.g Hua.g D. Ngo a. j. Rosa.is Depa.tment of Mecha.ica. a.d Industria. Engineering University of Illinois Urbana at Urbana-Champain 1206 West Green Street IL 61801 USA Gra.ua.e a.rona.tica. La.ora.ory California Institute of TechnologyPasadena CA 91125 USA

Current methodologies used for the inference of thin film stress through curva.ure mea.urements a.e strictly restricted to stress a.d curva.ure sta.es which a.e a.sumed to rema.n uniform over the entire film/substra.e system. By considering a.circula. thin film/substra.e system subj.ct to non-uniform, but a.isymmetric misfit stra.n distributions in the thin film, we derived rela.ions between the film stresses a.d the misfit stra.n, a.d between the pla.e system＇s curva.ures a.d the misfit stra.n. these rela.ions fea.ure a.“loca.” pa.t which involves a.direct dependence of the stress or curva.ure components on the misfit stra.n a. the sa.e point, a.d a.“non-loca.” pa.t which reflects the effect of misfit stra.n of other points on the loca.ion of scrutiny. Most nota.ly, we a.so derived rela.ions between the pola. components of the film stress a.d those of system curva.ures which a.low for the experimenta. inference of such stresses from full-field curva.ure mea.urements in the presence of a.bitra.y ra.ia. non-uniformities. these rela.ions a.so fea.ure a.“non-loca.” dependence on curva.ures ma.ing a.full-field mea.urement a.necessity. Fina.ly, it is shown tha. the interfa.ia. shea. tra.tions between the film a.d the substra.e a.e proportiona. to the ra.ia. gra.ients of the first curva.ure inva.ia.t a.d ca. a.so be inferred experimenta.ly.

关键词： Non-uniform misfit stra.n Non-uniform wa.er curva.ures ,Stress-curva.ure rela.ions Non-loca. effects ,Interfa.ia. shea.s