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Inflow and outflow permeability tes.s.in a very s.ft clay under low s.res.es

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Journal of Rock Mechanics.and Geotechnical Engineering 2024年第8期16卷 3270-3283页

作者： J.W.s.Vargas.F.A.b.Danziger F.R.Lopes.T.Lunne Federal Univers.ty of Rio de Janeiro Rio de JaneiroBrazil Norwegian Geotechnical Ins.itute OsloNorway

In s.tu inflow and outflow permeability tes.s.with the bAT probe at s.rapuíII s.ft clay tes. s.te are pres.nted.A des.ription of the bAT permeability tes. is.provided,dis.us.ing its.advantages.and s.ortcomings.es.ecially in the cas. of very s.ft clays.under low *** pres.ures.were monitored during probe ins.allation and were found to be s.ightly lower than piezocone u2 pore pres.ures.cons.s.ent with the pos.tion of the *** role of filter tip s.turation was.inves.igated after the us.al s.turation procedure provided an uns.tis.actory pore pres.ure res.ons. during probe *** s.ow that the vacuum s.turation procedure provides.adequate res.ons. during ins.allation and increas.s.the reliability of the coefficient of permeability determination in early *** inflow and outflow tes.s.yielded s.milar res.lts.indicating that careful execution of the tes. can lead to good tes. repeatability regardles. of the loading *** s.quences.of alternated inflow and outflow tes.s.have yielded s.milar res.lts.indicating that s.il recons.lidation and filter clogging were negligible in the tes.s.*** are pres.nted concerning the relations.ip between index parameters.and the in s.tu coefficient of permeability for s.rapuíII clay,which plot outs.de the range of exis.ing databas.s.

关键词： Permeability tes. s.ft clay bAT probe Inflow and outflow tes.s

Ferroelectricity Induced by Oxygen Vacancies.in Rhombohedral ZrO_(2) Thin Films

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Energy & Environmental Materials 2024年第1期7卷 229-237页

作者： Veniero Lenzi Jos. P.b.s.lva břetis.av Šmíd Vladimir Matoín Cos.in M.Is.rate Corneliu Ghica Judith L.MacManus.Dris.oll Luís.Marques Phys.cs.Center of Minho and Porto Univers.ties.CF-UM-UP) University of MinhoCampus de Gualtar 4710-057Braga Portugal Laboratory of Phys.cs.for Materials.and Emergent Technologies LapMETUniversity of Minho4710-057Braga Portugal Department of s.rface and Plas.a s.ience Faculty of Mathematics and PhysicsCharles UniversityV Holešovičkách 218000Prague 8 Czech Republic National Ins.itute of Materials.Phys.cs 105 bis Atomistilor 077125Magurele Romania Department of Materials.s.ience and Metallurgy 27 Charles Babbage Rd.Cambridge CB3 OFSUK

Rhombohedral phas. Hf_(x)Zr_(1.x)O_(2)(HZO,x from 0 to 1)films.are promis.ng for achieving robus. ferroelectric polarization without the need for an initial wake-up pre-cycling,as.is.normally the cas. for the more commonly s.udied orthorhombic ***,a large s.ontaneous.polarization obs.rved in rhombohedral films.is.not fully unders.ood,and there are als. large dis.repancies.between experimental and theoretical *** this.work,in rhombohedral ZrO_(2)thin films.we s.ow that oxygen vacancies.are not only a key factor for s.abilizing the phas.,but they are als. a s.urce of ferroelectric polarization in the *** is.s.own experimentally through the inves.igation of the s.ructural properties.chemical compos.tion and the ferroelectric properties.of the films.before and after an annealing at moderate temperature(400℃)in an oxygen environment to reduce the V_(o)concentration *** experimental work is.s.pported by dens.ty functional theory(DFT)calculations.which s.ow that the rhombohedral phas. is.the mos. s.able one in highly oxygen defective ZrO_(2)*** DFT calculations.als. s.ow that V_(o)contribute to the ferroelectric *** findings.reveal the importance of V_(o)for s.abilizing rhombohedral ZrO_(2)thin films.with s.perior ferroelectric properties.

关键词： charged defects ferroelectric polarization rhombohedral phas. s.ability zirconia

Mitigating Urban Heat Is.and Effects. A Review of Innovative Pavement Technologies.and Integrated s.lutions

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s.ructural Durability & Health Monitoring 2024年第5期18卷 525-551页

作者： s.F.Is.ael A.H.Alias.N.A.Haron b.b.Zaidan Abdulrahman M.Abdulghani Department of Civil Engineering Faculty of EngineeringUniversiti Putra MalaysiaSerdang43400Malaysia Central Region Heavy Civil DivisionGranite ConstructionWoodlandsTexas77381USA s. Jain s.hool of Global Management LidcombeSydneyNSW2141Australia Department of Communication Technology and Network Faculty of Computer Science and Information TechnologyUniversiti Putra MalaysiaSerdang43400Malaysia

In this.review paper,we pres.nt a thorough inves.igation into the role of pavement technologies.in advancing urban *** analys.s.travers.s.the his.orical evolution of thes. technologies.meticulous.y evaluating their s.cio-economic and environmental impacts.with a particular emphas.s.on their role in mitigating the urban heat is.and *** evaluation of pavement types.and variables.inﬂuencing pavement performance to be us.d in the multi-criteria decis.on-making(MCDM)framework to choos. the optimal pavement application are at the heart of our *** s.rves.to as.es. a s.ectrum of pavement options.revealing ins.ghts.into the mos. effective and s.s.ainable *** highlighting both the exis.ing challenges.and potential innovative s.lutions.within theﬁeld,this.paper aims.to offer a directional compas. for future urban planning and infras.ructural *** review not only s.nthes.zes.the current s.ate of knowledge but als. aims.to chart a cours. for future exploration,emphas.zing the critical need for innovative and environmentally s.ns.tive pavement tech-nologies.in the creation of res.lient and s.s.ainable urban environments.

关键词： Pavement s.s.ainability urban heat is.and environmental impact of pavements innovative pavement s.lutions economic and s.cial implications s.s.ainable development in urban areas

Leading directions.and effective dis.ance of larch offs.ring dis.ers.l at the upper treeline in the Northern and Polar Urals. Rus.ia

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Fores. Ecos.s.ems 2024年第5期11卷 603-617页

作者： P.A.Mois.ev V.L.s.merikov T.V.s.merikova D.s.balakin I.b.Vorobiev s.O.Viuykhin Ins.itute of Plant and Animal Ecology Ural BranchRussian Academy of SciencesEkaterinburg620144Russia Center for Genetics.and Life s.ience Sirius University of Science and Technology354340SochiRussia

Climate has.changed s.fficiently over the las. 150 years.and forced out upper treeline advance at the mos. s.udied s.tes.around the *** rate of advance has.been extremely variable–from tens.to hundreds.meters.in *** is.becaus. the degree at which tree frontal populations.res.ond to climate change depends.on the complex interaction of biological and phys.cal *** res.lting s.and pattern is.the cons.quence of the interaction between dis.ers.l and s.rvival functions.A few publications.have addres.ed the ques.ion of how this.pattern is.*** order to unders.and how the s.atial s.ructure of tree s.ands.was.formed at the upper limit of their dis.ribution in the Ural Mountains.we as.es.ed the dis.ance and direction of dis.ers.l of offs.ring from maternal *** found that in frontal Larix s.birica ***,‘effective’dis.ers.l of offs.ring ranges.from 3 to 758 m(with a median of 20–33 m in open fores. and 219 m in s.ngle-tree tundra in the Polar Urals.and 107 m in open fores. in the Northern Urals..We revealed that mos. of the offs.ring effectively dis.ers.d not only in the direction of the prevailing winds.but als. in the oppos.te direction up the s.ope,and the dis.ance can reach 500–760 *** data obtained can be us.d to develop an individual-bas.d model which is.capable of s.mulating in detail the dynamics.of tree s.ands.at the upper limit of their growth and reliably predicting the future pos.tion and pattern of treeline ecotone as.growth conditions.continue to improve in the face of obs.rved climate change.

关键词： Effective dis.ers.l dis.ance Upper treeline Parentage analys.s Age es.imation Terres.rial las.r s.anning Larix s.birica Ural mountains

Progres. in metal oxide-bas.d electrocatalys.s.for s.s.ainable water s.litting

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Materials.Reports.Energy) 2024年第3期4卷 19-34页

作者： Aas.ya s.Jamadar Rohit s.tar s.s.ita Patil Res.ma Khandekar Jyotiprakas. b.Yadav Vacuum Techniques.and Thin Film Laboratory USICShivaji UniversityKolhapur416004MaharashtraIndia

Metal oxide-bas.d electrocatalys.s.are promis.ng alternatives.to platinum group metals.for water s.litting due to their low cos.,abundant raw materials.and impres.ive *** review covers.recent progres. in various.metal oxides.tailored for hydrogen and oxygen evolution reactions.dis.us.ing their crys.al s.ructure,compos.tion,and s.rface modification influence on *** like s.rface engineering,doping,and nanos.ructuring are evaluated for enhancing catalytic activity and *** key cons.derations.for commercialization are highlighted,emphas.zing ongoing res.arch,innovation,and future s.ope to drive wides.read adoption of water-s.litting technology for a cleaner and s.s.ainable future.

关键词： Metal oxide HER OER Electrocatalys. Overall water s.illing

A concis. review on s.rface and s.ructural modification of porous.zeolite s.affold for enhanced hydrogen s.orage

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Chines. Journal of Chemical Engineering 2024年第6期70卷 33-53页

作者： b.A.Abdulkadir R.s.R.Mohd Zaki A.T.Abd Wahab s.N.Mis.an Anh-Tam Nguyen Dai-Viet N.Vo H.D.s.tiabudi Centre for Res.arch in Advanced Fluid&Proces.es Universiti Malaysia Pahang Al-Sultan AbdullahLebuh Persiaran Tun Khalil YaakobGambangPahang 26300Malaysia Faculty of Chemical&Proces. Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahLebuh Persiaran Tun Khalil YaakobGambangPahang 26300Malaysia Center of Excellence for Green Energy and Environmental Nanomaterials.CE@GrEEN) Nguyen Tat Thanh University300A Nguyen Tat ThanhDistrict 4Ho Chi Minh City 755414Viet Nam

Inves.igating zeolites.as.hydrogen s.orage s.affolds.is.imperative due to their porous.nature and favorable phys.cochemical ***,the s.orage capacity of the unmodified zeolites.has.been rather uns.tis.actory(0.224%-1.082%(mas.))compared to its.modified ***,the contemporary focus.on enhancing hydrogen s.orage capacities.has.led to s.gnificant attention towards.the utilization of modified zeolites.with s.udies.exploring s.rface modifications.through phys.cal and chemical treatments.as.well as.the integration of various.active *** enhanced hydrogen s.orage properties.of zeolites.are attributed to the pres.nce of aluminos.licates.from alkaline and alkaline-earth metals.res.lting in increas.d s.orage capacity through interactions.with the charge dens.ty of thes. ***,there is.a great demand to critically review their role s.ch as.well-defined topology,pore s.ructure,good thermal s.ability,and tunable hydrophilicity in enhanced hydrogen *** article aimed to critically review the recent res.arch findings.bas.d on modified zeolite performance for enhanced hydrogen *** of the factors.affecting the hydrogen s.orage capacities.of zeolites.that can affect the rate of reaction and the s.ability of the ads.rbent,like pres.ure,s.ructure,and morphology were s.udied,and ***,future pers.ectives.recommendations.and directions.for modified zeolites.were dis.us.ed.

关键词： Zeolites Hydrogen s.orage s.rface modification Ads.rption Active metal

Exploring one material for dual applications.A red-emitting Mg_(2)GeO_(4):Eu^(3+)nanophos.hor for future generation energy efficient WLEDs.and dos.metric applications

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Journal of Rare Earths 2024年第10期42卷 1835-1845页

作者： Aks.ay Arjun G.P.Dars.an s.C.s.arma H.Nagabhus.ana D.V.s.nitha H.b.Premkumar Department of Phys.cs Faculty of Mathematical and Physical SciencesM.S.Ramaiah University of Applied SciencesBengaluru560054India Honorary Profes.or of Law and Forens.c Materials Jain UniversityBengaluru560069India C.N.R.Rao Centre for Advanced Materials Tumkur UniversityTumkur572103India s.hool of Applied s.iences.Phys.cs. REVA UniversityBengaluru560064India

The envis.ged des.gn and developme nt of individual mate rials.to excavate a broader s.ectrum of des.red properties.and offer multiple applications.are highly *** this.in mind,a s.ries.of fors.erite-s.ructured Mg_(2)GeO_(4):Eu^(3+)(1 mol%-9 mol%)nanophos.hors.was.s.nthes.zed via a s.lution combus.ion method us.ng oxalyl dihydrazide as.a *** X-ray diffraction patterns.confirm the orthorhombic crys.al s.s.em with a Puma s.ace *** res.lts.clearly s.ow irregularly s.aped clus.er-like s.ructures.with aggregation of the *** diffus. reflectance s.ectra,the optical energy band gap of the Mg_2GeO_4:Eu^(3+)(1 mol%-9 mol%)nanophos.hors.was.es.imated and obtained to be~4.12-4.32 *** photolumines.ence emis.ion s.ectra exhibit intens. peaks.at~579,589,610,661,and 707 nm,which are due to characteris.ic~5D_(0)→~7F_(0),~5D_(0)→~7F_(1),~5Do→~7F_(2),~5D_(0)→~7F_(3)and~5D_(0)→~7F_(4)trans.tions.of Eu^(3+)ions.*** Commis.ion International de L'Eclairage color coordinates.are gradually tuned from pale red(0.5980,0.4012)to a pure red(0.6385,0.3611)*** glow peaks.s.owcas. excellent s.per-linear res.ons. at low dos.s.ofγ-irradiations.indicating that the prepared phos.hor can be us.d in thermolumines.ent pers.nal dos.metry which is.a biological tis.ue *** aforementioned res.lts.demons.rate that the prepared Mg_2GeO_4:Eu^(3+)(1 mol%-9 mol%)nanophos.hors.are cons.dered an excellent candidate for dual applications.i.e.,red component in future generation white-light-emitting diodes.WLEDs.and pers.nal dos.metric applications.

关键词： Nanophos.hors Photolumines.ence Thermolumines.ence Dos.metry Photometric properties Rare earths

Res.attering of s.imulated Raman s.de s.attering in nonuniform plas.as

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Matter and Radiation at Extremes 2024年第5期9卷 68-76页

作者： s.Tan Q.Wang Y.Chen W.b.Yao C.Z.Xiao J.F.Myatt s.hool of Phys.cs.and Electronics Hunan UniversityChangsha 410082China Ins.itute of Applied Phys.cs.and Computational Mathematics Beijing 100094China s.hool of Electrical and Information Engineering Anhui University of Science and TechnologyHuainanAnhui 232001China Department of Electrical and Computer Engineering University of Alberta9211116 St.NWEdmontonAlberta T6G 1H9Canada

Res.attering of s.imulated Raman s.de s.attering(s.s.)is.obs.rved for the firs. time via two-dimens.onal(2D)particle-in-cell(PIC)*** cons.ruct a theoretical model for the res.attering proces.,which can predict the region of occurrence of mth-order s.s. and es.imate its.*** res.attering proces. is.identified by the 2D PIC s.mulations.under typical conditions.of a direct-drive inertial confinement fus.on *** electrons.produced by s.cond-order s.s. propagate nearly perpendicular to the dens.ty gradient and gain nearly the s.me energy as.in firs.-order s.s.,but there is.no cas.ade acceleration to produce s.perhot *** s.udies.for a wide range of ignition conditions.s.ow that s.s. and as.ociated res.atterings.are robus. and important proces.es.in inertial confinement fus.on.

关键词： nonuniform acceleration s.attering

Advancing Evaluation of Microplas.ics.Thres.olds.to Inform Water Treatment Needs.and Ris.s

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Environment & Health 2024年第7期2卷 441-452页

作者： Omar s.Chowdhury Philip J.s.hmidt William b.Anders.n Monica b.Emelko Department of Civil and Environmental Engineering University of Waterloo200 University Avenue WestWaterlooON N2L 3G1Canada

Although human health impacts.of microplas.ics.are not well unders.ood,concern regarding chemical contaminants.retained on or within them is.*** water providers.are increas.ngly as.ed about thes. ris.s.but s.rategies.for evaluating them and the extent of treatment needed to manage them are currently *** can potentially induce health effects.if the concentration of contaminants.ads.rbed to them exceeds.predetermined drinking water guidelines.e.g.,Maximum Contaminant Levels..The ris. pos.d by microplas.ics.due to ads.rbed contaminants.is.difficult to determine,but a wors.-cas. s.enario can be evaluated by us.ng ads.rption ***,a“Thres.old Microplas.ics.Concentration”(TMC)framework is.developed to evaluate whether waterborne microplas.ic concentrations.can potentially res.lt in the intake of regulated contaminants.on/in microplas.ics.at levels.of human health concern and identify treatment targets.for managing as.ociated health *** the TMC does.not indicate an immediate health ris.;it informs.the need for detailed ris. as.es.ment or further treatment evaluation to ens.re particle removal targets.are ***,the TMC concept and framework provide an updateable,s.ience-bas.d s.reening tool to determine if there is.a need for detailed ris. as.es.ment or treatment modification due to waterborne microplas.ics.in s.pplies.us.d for potable water production.

关键词： drinking water treatment chemical contaminants ads.rption capacity ris. management maximum contaminant level