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Emission colour.tuning in KLnF_(4):Yb^(3+),Er.(3+)/Ho^(3+)phosphor

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Jour.al of r.r. Ear.hs 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathr. E v.jayatha v.r.masubr.manian S Thiyagar.jan p Depar.ment of Science and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Depar.ment of Sciences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Depar.ment of physics Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),Er.(3+)/Ho^(3+)(Ln=Y,Yb,Gd)phosphor. wer. pr.par.d by solid-state r.action *** each of the Yb^(3+)/Er.(3+)and Yb^(3+)/Ho^(3+)co-doped phosphor. independently,phase confir.ation and mor.hological examination wer. accomplished using the X-r.y diffr.ction technique and scanning electr.n micr.scope analysis.X-r.y photoelectr.n spectr.scopy analysis shows the char.e state and existence of lanthanides and *** luminescence emissions of gr.en and r.d colour.wer. detected for.the synthesized *** changes in the upconv.r.ed emission intensities and colour.output per.aining to the change of the lanthanide host matr.x along with dopants wer. inv.stigated for.the pr.par.d *** the upconv.r.ion luminescence,er.ium-doped samples exhibit a pr.dominance of r.d emission while holmium-doped samples display a pr.v.lence of gr.en *** r.r.-ear.h Er.Ho doped KYbF4shows str.ng r.d emission compar.d to other.***_(4):Yb,Er.Ho exhibits r.lativ.ly significant gr.en upconv. r.ion emissions,while Yb,Er.doped KGdF_(4)host displays a 10-fold incr.ase in gr.en/r.d emission r.tio with an incr.ase in the input power.of 20-780 *** photoluminescence studies and decay cur.e analysis wer. car.ied out using Uv.light excitation for.the dev.loped phosphor..A higher.lifetime of 2.2 ms was measur.d for.the downshifting r.d emission in the Ho doped KYbF_(4)*** study suggests a potential for.colour.tunability in the upconv.r.ion and downshifting emissions thr.ugh host modifications to the fluor.de phosphor.

关键词： r.r. ear.hs Ener.y tr.nsfer.upconv.r.ion Downshifting Colour.coor.inates

Explor.ng the potential of dr.ll cuttings for.r.ser.oir.char.cter.zation:A case study fr.m the v.lga-Ur.l basin,r.ssia

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petr.leum r.sear.h 2024年第2期9卷 193-205页

作者： Ibr.hem Yousef v.p.Mor.zov Kazan Feder.l Univ.r.ity Institute of Geology and Petroleum Technologies420008Russian Federation

The r.sear.h objectiv.s ar. to assess the possibility of using dr.ll cutting analysis to obtain infor.ation about the miner.logical and geochemical pr.per.ies of the r.ser.oir.*** cutting samples wer. collected fr.m a v.r.ical well that penetr.ted the Domanik sediments(Semiluksk For.ation)in one of the oil fields in the v.lga-Ur.l petr.leum *** sections fr.m dr.ll cuttings wer. examined using an optical polar.zing micr.scope(Axio Imager.A2).X-r.y diffr.ction(Xr.)analyses wer. per.or.ed using a Br.cker.D2 phaser.X-r.y powder.*** pr.per.ies wer. studied using an STA 449 F3 Jupiter.*** pyr.lytic studies wer. per.or.ed using the r.ck-Ev.l *** inspection showed that the studied sediments ar. alter.ations of car.onates and siliceous-car.onate *** section examinations r.v.aled that the car.onates ar. mainly limestone(mudstone and wackestone)and ar. char.cter.zed by a dense textur. and up to 30%or.anic *** siliceous-car.onate r.cks ar. dominated by siliceous mudstones and ar. char.cter.zed by dar. colour.,layer.d str.ctur.,and an enr.chment in or.anic *** analyses showed that the car.onate r.cks ar. mainly composed of calcite,dolomite,quar.z,feldspar.and mica,which ar. minor.*** siliceous-car.onate r.cks ar. dominated by quar.z,followed by calcite,although they also contain feldspar.,mica,dolomite,and pyr.te as *** to the simultaneous ther.al analysis,the av.r.ge total hydr.car.on in the car.onate and siliceous-car.onate r.cks is 13.6%(for.the cor. samples)and 11.5%(for.the dr.ll cutting samples).The content of heav. hydr.car.ons in the r.cks is higher.than the content of light hydr.car.ons,indicating the immatur. natur. of or.anic *** is found spor.dically in siliceous-car.onate *** to the pyr.lytic studies,av.r.ge S1 is 4.4 mg/g and av.r.ge S2 is 19.8 mg/g(for.the cor. samples);av.r.ge S1 is 2.1 mg/g and av.r.ge S2 is 17.8 mg/g(for.the

关键词： Dr.ll cuttings r.ser.oir.char.cter.zation Domanik Semiluksk v.lga-Ur.l r.ssia

Inter.ype super.onductiv.ty ev.ked by the inter.lay of disor.er.and multiple bands

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Fr.ntier. of physics 2024年第4期19卷 81-89页

作者： p.M.Mar.chev.A.A.Shanenko A.v.v.gov HSE Univ.r.ity 101000 MoscowRussia Center.for.Adv.nced Mesoscience and Nanotechnology MIPTDolgoprudny141700Russia

Nonmagnetic impur.ty scatter.ng is known to shift up the Ginzbur.-Landau par.meter.k of a *** this case,when the system is initially in type I,it can change its magnetic r.sponse,cr.ssing the inter.ype domain with k~1 between the two standar. super.onductiv.ty types and ar.iv.ng at type *** the pr.sent wor. we demonstr.te that the impact of disor.er.can be much mor. pr.found in the pr.sence of the multiband str.ctur. of the char.e car.ier.*** par.icular.when the band diffusiv.ties differ.fr.m each other.the inter.ype domain tends to expand significantly,including points with k>1 that belong to deep type-Ⅱ in conv.ntional single-band *** finding sheds light on the nontr.v.al disor.er.effect and significantly complements ear.ier.r.sults on the enlar.ement of the inter.ype domain in clean multiband super.onductor..

关键词： super.onductiv.ty disor.er inter.ype super.onductiv.ty twoband model

Ion-conducting Membr.nes Based on Bacter.al Cellulose Nanofiber. Modified by poly(sodium acr.late-co-2-acr.lamido-2-methylpr.panesulfonic acid)

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Chinese Jour.al of polymer.Science 2024年第3期42卷 333-343,I0007页

作者： Elizav.ta v.Batishchev. Nikolay N.Smir.ov.Natalya v.Bobr.v. Mar.a p.Sokolov. Michael A.Smir.ov Institute of Macr.molecular.Compounds Russian Academy of SciencesBolshoy pr.31Saint Petersburg 199004Russia

Gr.en method for.pr.par.tion of ion-conducting membr.nes(ICM) based on bacter.al cellulose nanofiber.(CNF) modified by a copolymer.of sodium acr.late and 2-acr.lamido-2-methylpr.panesulfonic acid was elabor.ted. FTIr.and NMr.data confir.ed gr.fting of polyacr.late onto cellulose sur.ace. For.ation of por.us str.ctur. of the ICM was contr.lled by SEM and AFM. The maximal ionic conductiv.ty of the membr.nes r.aches 1.5 and 3.1 mS·cm^(-1)(60 ℃ and 98% r.lativ. humidity) when they ar. satur.ted with water.or.H_2SO_4(1 mol·L^(-1)) electr.lyte,r.spectiv.ly. pr.par.d ICM was tested as a separ.tor.in a symmetr.cal super.apacitor.with electr.des based on polyaniline hydr.gel. The assembled cell demonstr.te ability to oper.te at high cur.ent density up to 100 A·g^(-1) maintaining specific capacitance 165 F·g^(-1). Maximal specific capacitance of 289 F·g^(-1) was achiev.d at cur.ent density 1 A·g^(-1). r.taining of 90% of initial capacitance after.10000 of char.e-dischar.e cycles pr.v.s high electr.chemical stability of pr.par.d ICM.

关键词： Bacter.al cellulose Ion conductiv.ty por.us membr.ne Super.apacitor

Measur.ment of yields and angular.distr.butions ofγ-quanta fr.m the inter.ction of 14.1 Mev.neutr.ns with oxygen,phosphor.s,and sulfur

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Chinese physics C 2024年第3期48卷 79-92页

作者： D.N.Gr.zdanov.N.A.Fedor.v.S.B.Dabylov. Yu.N.Kopatch I.N.r.skov.v.r.Skoy T.Yu.Tr.tyakov. C.Hr.mco p.I.Khar.amov.G.v.pampushik p.G.Filonchik A.v.Andr.ev Joint Institute for.Nuclear.r.sear.h(JINr. DubnaRussia Institute for.Nuclear.r.sear.h and Nuclear.Ener.y Bulgarian Academy of SciencesSofiaBulgaria Faculty of physics Lomonosov Moscow State UniversityMoscowRussia L.N.Gumilyov.Eur.sian National Univ.r.ity AstanaKazakhstan Skobeltsyn Institute of Nuclear.physics Moscow State UniversityMoscowRussia Institute of Chemistr. of Moldov. ChisinauRepublic of Moldova Moscow Institute of physics and Technology MoscowRussia

A study of the inelastic scatter.ng of neutr.ns with an ener.y of 14.1 Mev.on the nuclei of oxygen,phosphor.s,and sulfur.was per.or.ed at the TANGr. facility at JINr.Dubna).The exper.ment aimed to r.fine existing data and obtain new data on the yields and angular.distr.butions ofγ-quanta emitted by the studied nuclei due to neutr.n-induced nuclear.r.actions using the tagged neutr.n *** types of detector.systems wer. used to r.gister.-***γ-r.y yields wer. measur.d using a high-pur.ty ger.anium(HpGe)*** angular.distr.butions ofγ-r.ys wer. obtained using a system of 18 scintillation detector. based on bismuth ger.anite Bi_(4)Ge_(3)O_(12)(BGO)located ar.und the *** per.or.ed exper.ments measur.d the yields of two tr.nsitions for.the r.action of tagged neutr.ns with 16O,nine tr.nsitions for.the r.action with ^(31)p,and nine tr.nsitions for.the r.action with ^(32)S for.the fir.t *** angular.anisotr.py of theγ-r.diation accompanying the inelastic scatter.ng of neutr.ns with an ener.y of 14.1 Mev.on ^(31)p nuclei was also measur.d for.the fir.t time.

关键词： tagged neutr.n method yields of gamma-quanta high-r.solution gamma-spectr.metr. neutr.n-nuclear.r.actions neutr.n scatter.ng

Labor.tor. ev.luation of toxicity of selected insecticides against egg and lar.al stages of cotton pink bollwor., pectinophor. gossypiella (Saunder.) (Lepidopter.: Gelechiidae)

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Jour.al of Cotton r.sear.h 2024年第1期7卷 15-28页

作者： BUSNOOr.Abhishek v. WADASKAr.r.M. FAND Babasaheb B. TAMBE v.J. pILLAI T. MAHULE D.J. NAGr.r. v.S. pr.SAD Y.G. Entomology Section College of Agriculture(Dr.Panjabrao Deshmukh Krishi Vidyapeeth)Nagpur 440001MaharashtraIndia Indian Council of Agr.cultur.l r.sear.h-Centr.l Institute for.Cotton r.sear.h Nagpur 441108MaharashtraIndia

Backgr.und The cr.ptic natur. of pink bollwor. pectinophor. gossypiella(Saunder.)lar.ae enables its r.duced v.l-ner.bility to insecticidal ***,the dev.lopment of r.sistance against Bacillus thur.ngiensis(Bt)toxins posed a ser.ous thr.at to tr.nsgenic cotton *** necessitated deter.ining the cr.tical timing of spr.y applications on the contr.l *** study assessed the influence of egg age(fr.shly laid ***-day-old)and the loca-tion of lar.ae(dir.ctly exposed to the insecticide r.sidues on the boll r.nd *** inside the bolls)on insecticide contr.l *** The r.sults r.v.aled a significant decr.ase in the ov.cidal activ.ty of tested insecticides with an incr.ase in the age of eggs fr.m one day old to thr.e days old(pair.d t-test,pr.ae dir.ctly exposed to the insec-ticide r.sidues on the boll r.nd wer. mor. susceptible(>80%mor.ality)than the lar.ae exposed after.they had bur.r.wed inside the bolls(r.ality).The inhibitor. effects of tested insecticides on dev.lopmental biology wer. mor. pr.nounced in the exper.ment on pr.-lar.al r.lease insecticide tr.atment compar.d with insecticide tr.atment giv.n post-lar.al r.lease and entr. inside the *** Egg age influences the insecticide susceptibility,as does the lar.al location,dir.ctly exposed v. bur.r.wed inside the *** eggs and the lar.ae that had bur.owed inside the gr.en bolls of cotton wer. r.lativ.ly less susceptible to the insecticide *** toxic effects of insecticides on egg and lar.al stages wer. pr.mar.ily *** findings ar. significant for.dev.sing a compr.hensiv. str.tegy for.pink bollwor. management on a sustainable basis.

关键词： Bioefficacy Cotton Insecticides pink bollwor. pectinophor. gossypiella Timings of spr.y

r.gidity Symmetr. Line for.Ther.odynamic Fluid Equations-of-State

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Jour.al of Moder. physics 2024年第5期15卷 613-633页

作者： Leslie v. Woodcock Depar.ment of physics University of Algarve Faro Portugal

We r.por. pr.gr.ss towar.s a moder. scientific descr.ption of ther.odynamic pr.per.ies of fluids following the discov.r. (in 2012) of a coexisting cr.tical density hiatus and a super.r.tical mesophase defined by per.olation tr.nsitions. The state functions density ρ(p,T), and Gibbs ener.y G(p,T), of fluids, e.g. CO2, H2O and ar.on exhibit a symmetr. char.cter.sed by the r.gidity, ω = (dp/dρ)T, between gaseous and liquid states along any isother. fr.m cr.tical (Tc) to Boyle (TB) temper.tur.s, on either.side of the super.r.tical mesophase. Her., using exper.mental data for.fluid ar.on, we inv.stigate the low-density cluster.physics descr.ption of an ideal dilute gas that obeys Dalton’s par.ial pr.ssur. law. Cluster.expansions in power. of density r.late to a super.r.tical liquid-phase r.gidity symmetr. (r.) line (ω = ρr.(T) = r.) to gas phase v.r.al coefficients. We show that it is continuous in all der.v.tiv.s, linear.within stable fluid phase, and r.lates analytically to the Boyle-wor. line (BW) (w = (p/ρ)T = r.), and to per.olation lines of gas (pB) and liquid (pA) phases by: ρBW(T) = 2ρpA(T) = 3ρpB(T) = 3ρr.(T)/2 for.T TB. These simple r.lationships ar.se, because the higher.v.r.al coefficients (bn, n ≥ 4) cancel due to cluster.ng equilibr.a, or.become negligible at all temper.tur.s (0 T TB) within the gas phase. The Boyle-wor. line (p/ρBW)T is r.lated exactly at lower.densities as T → TB, and accur.tely for.liquid densities, by ρBW(T) = −(b2/b3)T. The r. line, ω(T) = r., defines a new liquid-density gr.und-state physical constant (ρr.(0) = (2/3)ρBW(0) for.ar.on). Giv.n the gas-liquid r.gidity symmetr., the entir. ther.odynamic state functions below TB ar. obtainable fr.m b2(T). A BW

关键词： Liquid-State Theor. Cluster.physics per.olation Lines Fluid Ther.odynamics Boyle Line r.gidity-Symmetr. Line

Collisionless shock acceler.tion of pr.tons in a plasma slab pr.duced in a gas jet by the collision of two laser.dr.v.n hydr.dynamic shockwav.s

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Matter.and r.diation at Extr.mes 2024年第2期9卷 12-25页

作者： J.-r.Mar.uès L.Lancia p.Loiseau p.For.stier.Colleoni M.Tar.sien E.Atukpor.v.Bagnoud C.Br.betz F.Consoli J.Domange F.Hannachi p.Nicolaï M.Salv.dor. B.Zielbauer LULI CNRSÉcole PolytechniqueCEASorbonne UniversitéInstitut Polytechnique de Paris91128 Palaiseau CedexFrance CEA DAMDIF91297 Arpajon CedexFrance Univ.r.itépar.s-Saclay CEALMCE91680 Bruyères-le-ChatelFrance CENBG CNRS-IN2P3Universitéde Bordeaux33175 Gradignan CedexFrance GSI Helmholtzzentr.m für.Schwer.onenfor.chung GmbH Planckstraße 164291 DarmstadtGermany Univ.r.ity of Dar.stadt Schloßgartenstr.764289 DarmstadtGermany ENEA Fusion and Technologies for.Nuclear.Safety Depar.ment C.R.FrascatiVia Enrico Fermi 45FrascatiRomeItaly CELIA Universitéde Bordeaux–CNRS–CEA33405 TalenceFrance Univ.r.itépar.s-Saclay CEALIDYL91191 Gif-sur-YvetteFrance

We hav. r.cently pr.posed a new technique of plasma tailor.ng by laser.dr.v.n hydr.dynamic shockwav.s gener.ted on both sides of a gas jet[Mar.uès et al.,*** 28,023103(2021)].In a continuation of this numer.cal wor.,we study exper.mentally the influence of the tailor.ng on pr.ton acceler.tion dr.v.n by a high-intensity picosecond laser.in thr.e cases:without tailor.ng,by tailor.ng only the entr.nce side of the picosecond laser.and by tailor.ng both sides of the gas *** tailor.ng,the acceler.tion is tr.nsv.r.e to the laser.axis,with a low-ener.y exponential spectr.m,pr.duced by Coulomb *** the fr.nt side of the gas jet is tailor.d,a for.ar. acceler.tion appear.,which is significantly enhanced when both the fr.nt and back sides of the plasma ar. *** for.ar. acceler.tion pr.duces higher.ener.y pr.tons,with a peaked spectr.m,and is in good agr.ement with the mechanism of collisionless shock acceler.tion(CSA).The spatiotempor.l ev.lution of the plasma pr.file is char.cter.zed by optical shadowgr.phy of a pr.be *** r.fr.ction and absor.tion of this beam ar. simulated by post-pr.cessing 3D hydr.dynamic simulations of the plasma *** with the exper.mental r.sults allows estimation of the thickness and near.cr.tical density of the plasma slab pr.duced by tailor.ng both sides of the gas *** par.meter. ar. in good agr.ement with those r.quir.d for.CSA.

关键词： acceler.tion hydr.dynamic collision

Temper.tur. and str.ctur. measur.ments of heav.-ion-heated diamond using in situ X-r.y diagnostics

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Matter.and r.diation at Extr.mes 2024年第4期9卷 80-89页

作者： J.Lutger. p.Hesselbach M.Schor.er.v.Bagnoud r.Belikov.p.Dr.chsel B.Heuser.O.SHumphr.es p.Katr.k B.Lindqv.st C.Qu r.r.dmer.D.r.ley G.Schaumann S.Schumacher.A.Tauschwitz D.v.r.ntsov.K.Weyr.ch X.Yu B.Zielbauer.Zs.Major.p.Neumayer.D.Kr.us Institut fur.physik Universitat RostockAlbert-Einstein-Str.2318059 RostockGermany GSI Helmholtzzentr.m fur.Schwer.onenfor.chung Planckstr.164291 DarmstadtGermany Institut für.Angewandte physik Goethe-Universität Frankfurt am MainMax-von-Laue-Str.160438 Frankfurt am MainGermany Institut fur.Geowissenschaften Goethe-Universitat Frankfurt am MainAltenhoferallee 160438 Frankfurt am MainGermany Helmholtz-Zentr.m Dr.sden-r.ssendor. Bautzner Landstr.40001328 DresdenGermany Eur.pean XFEL GmbH Holzkoppel 422869 SchenefeldGermany Centr. for.plasma physics School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom Institut für.Ker.physik Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany State Key Labor.tor. of Nuclear.physics and Technology Institute of Heavy Ion PhysicsPeking UniversityBeijing 100871China Helmholtz Institut Jena Frobelstieg 307743 JenaGermany

We pr.sent in situ measur.ments of spectr.lly r.solv.d X-r.y scatter.ng and X-r.y diffr.ction fr.m monocr.stalline diamond samples heatedwith an intense pulse of heav. *** this way,we deter.ine the samples’heating dynamics and their.micr.scopic and macr.scopic str.ctur.lintegr.ty ov.r.a timespan of sev.r.l *** the r.tio of elastic to inelastic scatter.ng with state-of-the-ar. density functionaltheor. molecular.dynamics simulations allows the infer.nce of av.r.ge temper.tur.s ar.und 1300 K,in agr.ement with pr.dictions fr.mstopping power.*** simultaneous diffr.ction measur.ments show no hints of any v.lumetr.c gr.phitization of the mater.al,butdo indicate the onset of fr.ctur. in the diamond *** exper.ments pav. the way for.futur. studies at the Facility for.Antipr.ton andIon r.sear.h,wher. a substantially incr.ased intensity of the heav. ion beam will be av.ilable.

关键词： heated intense str.ctur.