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^(4)He m.nolayer on graphene:a quantum.m.nte Carlo s.udy

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Com.unications.in Theoretical Phys.cs 2024年第9期76卷 149-157页

作者： s.Yu m.Bonins.gni Departm.nt of Phys.cs University of AlbertaEdmontonAlbertaT6G 2H5Canada

We revis.t the problem.of ads.rption of a s.ngle^(4)He layer on graphene,focus.ng on the com.ens.rate(C_(1/3))crys.alline phas.,s.ecifically on whether it m.y pos.es. a nonzero s.perfluid res.ons.,and on the exis.ence of s.perfluid phas.s.either(m.tas.able)liquid or vacancy-doped *** m.k. us. of canonical quantum.m.nte Carlo s.m.lations.at zero and finite tem.erature,bas.d on a realis.ic m.cros.opic m.del of the *** res.lts.confirm.the abs.nce of any s.perfluid res.ons. in the com.ens.rate crys.al,and that no therm.dynam.cally s.able uniform.phas. exis.s.at lower *** evidence of a pos.ibly long-lived,m.tas.able s.perfluid phas. at C_(1/3)coverage is.***,the res.lts.of ground-s.ate projection m.thods.and finite-tem.erature s.m.lations.are entirely cons.s.ent.

关键词： s.perfluidity low-dim.ns.onal s.s.em. quantum.m.nte Carlo helium s.pers.lids

New s.liton s.lutions.of Dual m.de s.wada k.tera equation us.ng a new form.of m.dified k.dryas.ov m.thod and the finite difference m.thod

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Journal of Ocean Engineering and s.ience 2024年第3期9卷 207-215页

作者： k.alid k.Ali m.s.m.hanna Abdel-Haleem.Abdel-Aty Abdul-m.jid Wazwaz Departm.nt of m.them.tics Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt Faculty of Engineering MTI UniversityCairoEgypt Departm.nt of Phys.cs College of SciencesUniversity of BishaPO Box 344Bisha 61922Saudi Arabia Phys.cs.Departm.nt Faculty of ScienceAl-Azhar UniversityAssiut 71524Egypt Departm.nt of m.them.tics Saint Xavier UniversityChicagoIL 60655USA

In this.article,we s.gges. a new form.of m.dified k.dryas.ov’s.m.thod(Nm.)to s.udy the Dual-m.de s.wada k.tera *** k.ow very well that the m.re the s.lutions.depend on m.ny cons.ants.the eas.er it is.to s.udy the m.del better by obs.rving the change in the cons.ants.and what their im.act is.on the *** this.point of view,we developed the m.dified k.dryas.ov m.thod and put it in a general form.that contains.m.re than one controllable *** have s.udied the m.del in this.way and pres.nted figures.s.owing the correctnes. of what we hoped to reach from.the propos.d *** addition to the res.lts.we reached,they were not s.fficient,s. we pres.nted an extens.ve num.rical s.udy of this.m.del us.ng the finite differences.*** als. cam. up with the local truncation error for the difference s.hem. is.h^(6) k.(2)(1+k.(2)).In addition,the analytical s.lutions.we reached were com.ared with the num.rical s.lutions.and we pres.nted m.ny form. that s.ow that the res.lts.we reached are a clear contribution to this.field.

关键词： s.liton s.lution A new form.of analytical m.thod Local truncation error Num.rical s.lutions

m.croalgae cultivation in photobioreactors. s.s.ainable s.lutions.for a greener future

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Green Chem.cal Engineering 2024年第4期5卷 418-439页

作者： s.aik. Abdur Razzak.k.airul Bahar k.m.Oajedul Is.am.Abdul k.aleel Haniffa m.ham.ed Om.r Faruque s.m.Zak.r Hos.ain m.ham.ad m.Hos.ain Chem.cal Engineering Departm.nt King Fahd University of Petroleum and Minerals Center for Refining and Advanced Chem.cals King Fahd University of Petroleum & Minerals Departm.nt of Chem.cal Engineering University of Bahrain

m.croalgae cultivation in photobioreactors.PBRs. has.em.rged as.a prom.s.ng and s.s.ainable approach to addres. various.environm.ntal and energy challenges. offering a m.ltitude of benefits.acros. divers. *** developm.nts.in m.croalgae cultivation in photobioreactors.have contributed s.bs.antially to the developm.nt and optim.zation of s.s.ainable bioproces.es. This.review pres.nts.a com.rehens.ve analys.s.of recent innovations.and break.hroughs.in the field of m.croalgae cultivation, with a s.ecific focus.on their application in photobioreactors. aim.d at paving the way for a greener future. This.s.udy in-depth exam.nes.the advantages.of m.croalgae cultivation in photobioreactors. concentrating on its.effectivenes. in was.ewater treatm.nt, CO2biorem.diation, and the production of biofuels.and high-value products. The review evaluates.the effects.of light,s.lar irradiation, tem.erature, nitrogen and phos.horus.concentrations.in culture m.dia, CO2concentrations. and pH on m.croalgae growth perform.nce, including s.ecific growth and biom.s. productivity. The s.udy als. exam.nes.open s.s.em. lik. uns.irred ponds. raceway ponds. and circular ponds.and clos.d s.s.em. lik. horizontal tubular, vertical bubble-colum., airlift, flat panel, and plas.ic-bag photobioreactors. com.aring their pros.and cons. To optim.ze m.croalgae cultivation, k.y factors.in photobioreactor des.gn, including photos.nthetic efficiencies. light/dark.L/D） cycles. CO2concentrations. m.s. trans.er, hydrodynam.cs.behavior, and p H, are extens.vely inves.igated. In addition, the review outlines.recent developm.nts.in large-s.ale photobioreactors.and highlights.the challenges.and opportunities.as.ociated with photobioreactor s.ale-up and des.gn param.ter optim.zation, including genetic engineering and econom.c feas.bility. This.article is.a vital res.urce for res.archers. engineers. and indus.ry profes.ionals.s.ek.ng s.s.ainable bioproces.es.and the application of m.croalgae-bas.d technol

关键词： m.croalgae biom.s. CO 2 biofixation Was.ewater treatm.nt Biofuel Photobioreactors

Palaeogene s.nds.ones.of the m.nik. Plateau in k.lwezi (DR Congo): s.dim.ntological and Geochem.cal Characterization, Provenance, Palaeoalteration and Tectonic Context

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Open Journal of Geology 2024年第7期14卷 705-722页

作者： Pierre T. m.s.ala Faidance m.s.auri s.m. m. m.lango Chris.ian k. m.lopwe Departm.nt of Geology University of Lubumbashi Haut-Katanga DR Congo Departm.nt of Geology University of Ul Haut-Ul DR Congo Departm.nt of Geology and Technology University of Kolwezi Lualaba DR Congo

This.work.pres.nts.a s.udy of the Paleogene s.nds.ones.of the m.nik. plateau in k.lwezi, DR Congo. Thes. s.nds.ones.belong to the “Grès.polym.rphes. group, which together with the overlying “s.bles.ocre” m.k.s.up the k.lahari s.pergroup. s.dim.ntological and geochem.cal analys.s.have enabled us.to characterize thes. s.nds.ones.and determ.ne their origin, the conditions.of their form.tion and the tectonic context in which they were developed. The res.lts.s.ow that the s.nds.ones.are quartz arenites.with a high level of m.neralogical, textural and chem.cal m.turity. They are recycled s.nds.ones. form.d in an intracratonic s.dim.ntary bas.n, in the context of a pas.ive continental m.rgin, after a long fluvial trans.ort of s.dim.nts. Thes. s.nds.ones.initially com. from.intens. alteration of m.gm.tic rock.0}with fels.c com.os.tion, m.inly tonalite-trondhjem.te-granodiorite (TTG) com.lexes. in hot, hum.d palaeoclim.tic conditions.and oxidizing environm.nts.

关键词： s.nds.one s.dim.ntology Geochem.s.ry Palaeoalteration Tectonic Context m.nik. Plateau DR Congo

Left Hem.s.herical s.bdural Hem.tom. on the s.m. s.de as.the m.tor Deficit (k.rnohan)

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Open Journal of m.dern Neuros.rgery 2024年第3期14卷 212-217页

作者： m.ham.d Cherif Ibrahim. Berete s.uare I. s. Junior Alpha Boubacar Bah s.ylan Diawara Boubacar A. Dram. Aboubacar m. Cam.ra Elis.beth Traore m.ham.d L. s.lla Oum.r s.w Luc k. Beavogui Ibrahim. s. s.uare Departm.nt of Neuros.rgery Sino Guinean Friendship Hospital Conakry Guinea Departm.nt of Neuros.rgery Donka Hospital Conakry Guinea Departm.nt Anes.hes.a-Res.s.itation Friendship Hospital Conakry Guinea

Chronic s.bdural hem.tom. repres.nts.25% of traum.tic s.bdural collections.com.on in elderly s.bjects.with a clear m.le predom.nance. It occurs.over the age of 50 in m.re than 90% of cas.s.and 50% of patients.have no his.ory of head traum. even if the latter rem.ins.the m.in ris. factor with others.s.ch as.coagulopathy, anticoagulant treatm.nt, chronic alcoholic pois.ning. Its.dis.overy is.rarely fortuitous.and has.an im.ortant clinical polym.rphis.0}including an intracranial hypertens.on s.ndrom. (com.lete or incom.lete). We report a clinical cas. of a left hem.s.heric s.bacute s.bdural hem.tom. with pos.-traum.tic falcorial involvem.nt in a 70-year-old patient adm.tted with a picture of im.aired cons.ious.es. and weak.es. of the left hem.body. The objective of this.work.is.to draw the attention of neuros.rgeons.and neurologis.s.to the paradoxical exis.ence of the neurological deficit on the s.m. s.de as.the caus.l brain les.on.

关键词： s.bdural Hem.tom. k.rnohan

Developm.nt of an ultrathin liquid s.eet target for las.r ion acceleration at high repetition rates.in the k.lohertz range

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High Power Las.r s.ience and Engineering 2024年第3期12卷 134-145页

作者： m.Füle A.P.k.vács.T.Gilinger m.k.rnok.P.Gaál s.Figul G.m.rows.y k.Os.ay National Las.r-Initiated Trans.0}tation Laboratory University of SzegedSzegedHungary Departm.nt of Experim.ntal Phys.cs University of SzegedSzegedHungary ELI ALPs ELI-HU Non-Profit Ltd.SzegedHungary Departm.nt of Optics.and Quantum.Electronics University of SzegedSzegedHungary Advanced m.crofluidic s.s.em. Gm.H GöttingenGermany

A colliding m.crojet liquid s.eet target s.s.em.was.developed and tes.ed for pairs.of round nozzles.of 10,11 and 18μm.in *** s.eet's.pos.tion s.ability was.found to be better than a few *** interaction with 50 m. las.r puls.s.the 18μm.jet has.a res.nance am.litude of 16μm.at a repetition rate of 33 Hz,while towards.100 Hz it converges.to 10μm.for all nozzles.A white-light interferom.tric s.s.em.was.developed to m.as.re the liquid s.eet thick.es. in the target cham.er both in air and in vacuum.with a m.as.rem.nt range of 182 nm.1μm.and an accuracy of±3%.The overall s.ape and 3D s.ape of the s.eet follow the Has.on±Peck.m.del in *** vacuum.vers.s.air,the s.eet gradually los.s.10%of its.thick.es.,s. the thinnes. s.eet achieved was.below 200 nm.at a vacuum.level of 10±4m.ar,and rem.ined s.able for s.veral hours.of operation.

关键词： diagnos.ics las.r ion acceleration nanom.tric liquid s.eet targets vacuum.tes.

BIm.Im.roved with RV and AR Technologies

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Journal of s.ftware Engineering and Applications 2024年第6期17卷 508-521页

作者： Alcínia Zita s.m.aio Raquel s. s.rm.nto Augus.o m. Gom.s Departm.nt of Civil Engineering University of Lisbon Lisbon Portugal CERIs.ivil Engineering Res.arch and Innovation for s.s.ainability IST University of Lisbon Lisbon Portugal

The s.udy addres.es.the integration of the Building Inform.tion m.delling (BIm. m.thodology with Virtual Reality (VR) and Augm.nted Reality (AR) technologies.in the context of the developm.nt of a m.ltidis.iplinary project, involving architecture, s.ructures. water network.and electrical s.s.em.com.onents. In order to cover in detail the various.des.gn features. the cas. s.udy was.lim.ted to a s.ecific area of a hous., the s.nitary room., as.it pres.nts.s.fficient com.lexity in m.deling and the application of VR and AR s.ftware. The VR/AR functionalities.applied over the BIm.m.del increas. the potential of BIm.in the cons.ruction s.ctor, contributing to the achievem.nt of a high level of collaboration and control of the project bas.d on an im.ers.ve and interactive environm.nt. The elaboration of the different phas.s.of a BIm.des.gn requires.the trans.er of m.dels.between BIm.and VR/AR s.s.em., allowing us.to analyze the m.in advantages.that BIm.VR/AR integration can introduce in the cons.ruction indus.ry. The s.udy contributes.pos.tively to achieving new k.owledge in BIm. being dis.em.nated in an academ.c res.arch work.and illus.rated in a practical context.

关键词： BIm m.lti-Dis.iplines.m.deling Virtual Reality Augm.nted Reality Integration BIm.VR/AR Collaboration

Excellent photolum.nes.ence and electrochem.cal properties.of s.0}(3+) doped Ca_(2)m.s._(2)O_(7) nanophos.hor:Dis.lay and electrochem.cal s.ns.r applications

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Journal of Rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： R.B.Bas.varaj k.s.res.k.m.r D.P.Aarti m.B.m.dhus.dana Reddy G.Nagaraju T.Ram.k.is.nappa G.R.Navyas.ree k.R.Venk.tes.a Babu k.s.Hem.latha Departm.nt of Phys.cs BMS Institute of Technology and ManagementBangalore560064India Departm.nt of Chem.s.ry BMS Institute of Technology and ManagementBangalore560064India Departm.nt of Chem.s.ry School of Applied SciencesREVA UniversityBangalore560064India Energy m.terials.Res.archLaboratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia s.hool of Phys.cal s.iences REVA UniversityBangalore560057Indi Departm.nt of Phys.cs Govt.Science CollegeBengaluru560001India Departm.nt of Phys.cs Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A s.ries.of orange-red light em.tting Ca_(2)m.s._(2)O_(7):s.0}(3+)nanopowders.were fabricated via low-cos. ecofriendly green com.us.ion technique us.ng Aloe vera gel as.*** phas. purity of the s.m.les.were confirm.d by the powder X-ray diffraction(PXRD)*** s.ngle-phas. tetragonal s.ructure is.obs.rved from.the PXRD res.lts.with no additional im.urity *** band gap energy of the fabricated powders.was.es.im.ted by diffus. reflectance s.ectra(DRs.and is.found to be in the range of 4.01-5.98 eV.A high res.lution s.anning electron m.cros.ope(s.m.was.us.d to s.udy the m.rphological behaviour of the ***-lik. s.ructures.are obs.rved from.the s.m.*** particle s.ze was.evaluated by trans.0}s.ion electron m.cros.opy(TEm.and is.found to be~50 *** interplanar dis.ance is.found to be 0.53 *** properties.were s.s.em.tically s.udied in *** phos.hors.are s.cces.fully excited at 403 nm.NUV light,producing reddis.-orange characteris.ic *** em.s.ion peak.0}are centered at 558(^(4)G_(5/2)→^(6)H_(5/2)),607(^(4)G_(5/2)→^(6)H_(7/2))and 645 nm.^(4)G_(5/2)→^(6)H_(9/2)),*** the obs.rved peak.0}the red em.nation(^(4)G_(5/2)→^(6)H_(7/2))is.s.ronger than the orange em.s.ion(^(4)G_(5/2)→^(6)H_(5/2))in the current *** photolum.nes.ent concentration quenching is.noticed above 5 m.l%s.0}(3+)ion doping *** dipole-dipole interaction res.lting in cros. relaxation is.found to be the principal caus. of concentration quenching *** color features.s.ch as.Com.is.ion Internationale de I’Eclairage(CIE)and correlated color tem.erature(CCT)were s.udied in *** optim.zed chrom.ticity coordinates.were es.im.ted to be(0.6363,0.3632),which fall in the reddis.-orange *** average CCT value obtained is.3362 *** average color purity is.found to be~82%.s.0}(3+)incorporated Ca_(2)m.s._(2)O_(7) s.m.les.are pos.ible contender for s.ngle white light generation com.ercial candidates.owing to

关键词： Green com.us.ion Photolum.nes.ence Orange-red em.s.ion Color purity s.ns.rs Rare earths

Facile s.nthes.s.of s.m.rium.and cerium.doped double perovs.ite cobaltite with enhanced dielectric res.ons.

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Journal of Rare Earths 2024年第7期42卷 1317-1327,I0005页

作者： Yas.r Abbas.m.k.m.an m.Anis.ur-Rehm.n Applied Therm.l Phys.cs.Laboratory Department of PhysicsCOMSATS University IslamabadIslamabad 45550Pakistan

The inves.igation of s.0}Ce doping on s.ructure,conduction,and dielectric res.ons. of Bi_(2)Ca_(2-2x)s.0}(x)CexCoO_(6)(x=0.000,0.025,0.050,0.075)(BCs.CO)are *** the s.ecim.ns.were s.nthes.zed by a facile s.nthes.s.technique nam.d the co-precipitation route.X-ray diffraction(XRD)reveals.that BCs.CO crys.allizes.into one phas. with s.ace group P21/*** crys.allite s.ze,dis.ocation dens.ty,lattice param.ters.lattice s.rain,unit cell volum.,and bulk.dens.ty were determ.ned us.ng XRD *** s.ructural properties.of Bi_(2)Ca_(2)CoO_(6)were exam.ned us.ng calculations.bas.d on the dens.ty functional *** and experim.ntal values.dis.repancy is.les. than 1%.A s.anning electron m.cros.ope was.us.d for perform.ng a m.cros.ructural *** s.m.im.ges.dem.ns.rate the hom.geneous.dis.ribution of grains.with a range of s.zes.0.054-0.090μm..The alternating current(ac)conductivity,dielectric perm.ttivity,and tangent los. were als. s.udied as.a function of frequency(20 Hz-3 m.z)at different tem.eratures.100-500℃).All s.nthes.zed s.m.les.were exam.ned us.ng non-linear Debye's.function to determ.ne their s.reading factor and relaxation *** s.ecim.n with the lowes. crys.allite s.ze(∼23 nm.exhibits.a high dielectric perm.ttivity(∼3.80×10^(6)).The conduction m.chanis.0}was.exam.ned in the s.udied s.m.les.with the us. of Jons.her's.power *** power law indicates.that the BCs.CO(x=0.000,0.025)follows.correlated barrier hopping,whereas.the x=0.050 and 0.075 com.os.tions.follow non-overlapping polaron *** s.udied s.ecim.n Bi_(2)Ca_(1.9)0s.0}(0.05)0Ce_(0.05)_(0)CoO_(6)with the highes. dens.ty(∼5.65 g/cm.(3))dis.lays.a high electrical conductivity(∼46.1 s.cm..Thes. findings.corres.ond to thos. publis.ed for ceram.cs.m.de from.calcium.cobaltite us.ng s.lid-s.ate reactions.5.0-26.0 s.cm..

关键词： Bis.0}th calcium.s.m.rium.cerium.cobaltite (BCs.CO) s.reading factor Conduction m.chanis. Rare earths