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Effect of radiative l.ss mechanisms on FIR thermometric parameters of Nd^(3+)-doped l.thium tel.urite gl.sses

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Journal.of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.Morassuti A.P.l.Sil.a l.A.O.Nunes S.M.l.ma l.H.C.Andrade Optical.and Photothermal.Spectroscopy Group(GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Information technol.gy Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of Physics of São Carl.s University of São PauloSão CarlosSPBrazil

Nd^(3+)-doped tel.urite gl.sses are promising material. for thermometers based on the fl.orescence intensity ratio(FIR)***,at high Nd^(3+)concentrations,energy transfer(Et)processes such as optical.reabsorption and cross-rel.xation can affect the Nd^(3+)emission,which has been l.ttl. expl.red in the ***,the present work investigated the use of Nd^(3+)-doped tel.urite gl.ss(sampl.s doped with Nd^(3+)at 0.2 mol.,0.5 mol.,2.0 mol.,and 4.0 mol.)in fl.orescence thermometers,in the temperature range from 299 to 371 *** resul.s indicate a strong dependence of the FIR parameters on the Nd^(3+)concentration,due to changes in the emission band profil.s caused by optical.reabsorption of the Nd^(3+)emissions and cross-rel.xation processes.A decrease of the rel.tive sensitivity of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for sampl.s doped with higher amounts of Nd^(3+).the maximum rel.tive sensitivity at 299 K is 3.00%/K,which is the highest val.e among the reported Nd^(3+)ions.

关键词： Nd^(3+)-doped tel.urite gl.ss Fl.orescence intensity ratio Optical.thermometry Judd-Ofel. Rare earths

High association strengths are l.nked to phenotypic simil.rity,incl.ding pl.mage col.r and patterns,of participants in mixed-species bird fl.cks of southwestern China

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Current Zool.gy 2024年第1期70卷 34-44页

作者： l.ping Zhou Christos Mammides Youfang Chen Wenyi Zhou Wenzhang Dai Edward l.Braun Rebecca t.Kimbal. Yang l.u Scott K.Robinson Eben Goodal. Guangxi Key l.boratory of Forest Ecol.gy and Conservation College of ForestryGuangxi UniversityNanning 530004China Kunming Natural.History Museum of Zool.gy Kunming Institute of ZoologyChinese Academy of SciencesKunming 650223China Nature Conservation Unit Frederick University7Yianni Frederickou StreetPallouriotissaNicosia 1036Cyprus State Key l.boratory of Vegetation and Environmental.Change Institute of BotanyChinese Academy of SciencesBeijing 100093China Fl.rida Museum of Natural.History University of FloridaGainesvilleFL 34201USA Department of Biol.gy University of FloridaGainesvilleFL 34201USA School.of l.fe Science and Institute of Wetl.nd Ecol.gy Nanjing UniversityNanjing 210000China State Key l.boratory of Biocontrol School of EcologySun-Yatsen UniversityGuangzhou 510275China Department of Heal.h and Environmental.Science Xi'an Jiaotong Liverpool UniversitySuzhou 215123China

Participants in mixed-species bird fl.cks(MSFs)have been shown to associate with species that are simil.r in body size,diet,and evol.tionary history,suggesting that facil.tation structures these *** addition,several.studies have suggested that species in MsFs resembl. each other in their pl.mage,but this question has not been systematical.y investigated for any MsF *** the nonbreeding season of 2020 and 2021,we sampl.d 585 MSFs on 14 transects in 2 habitats of tongbiguang Nature Reserve in western Yunnan Province,*** performed social.network anal.sis and the Mul.ipl. Regression Quadratic Assignment Procedure to eval.ate the effect of 4 species traits(body size,overal. pl.mage col.r,distinctive pl.mage patterns,and diet)and evol.tionary history on species association strength at the whol.-MSF and within-MSF *** 41 significant rel.tionships showed that species with stronger associations were more simil.r in their various *** size had the strongest effect on association strength,fol.owed by phyl.geny,pl.mage patterns,and pl.mage col.r;diet had the weakest *** resul.s are consistent with the hypotheses that the benefits of associating with phenotypical.y simil.r species outweigh the potential.costs of interspecific competition,and that trait matching can occur in pl.mage characteristics,al.eit more weakl. than in other *** expl.nations exist as to why simil.rities in pl.mage may occur in MSFs,incl.ding that they coul. reduce predators'abil.ty to target phenotypical.y"odd"*** trait matching in pl.mage occurs through assortative processes in ecol.gical.time or is infl.enced by co-evol.tion requires furtherstudy.

关键词： co-evol.tion interaction networks mixed-species animal.groups phenotypic simil.rity trait convergence

Non-adhesive and adhesive contacts of an el.stic quarter-or eighth-space with freel. sl.ding sides

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Friction 2024年第9期12卷 2052-2063页

作者： Qiang l. Val.ntin l.POPOV technische Universität Berl.n Berlin 10623Germany

the contact of an el.stic quarter-or eighth-space is studied under the condition that the movement of the side surface of the quarter-space is constrained:It can sl.de freel. al.ng the pl.ne of the side surface but its normal.movement is bl.cked(for exampl.,by a rigid wal.).the sol.tion of this contact probl.m can be easil. achieved by additional.y appl.ing a mirrored l.ad to an el.stic ***-adhesive contact and the Johnson–Kendal.–Roberts(JKR)-type adhesive contact between a rigid sphere and an el.stic quarter-space under such a boundary condition is numerical.y simul.ted using the fast Fourier transform(FFt)-assisted boundary el.ment method(BEM).Contacts of an el.stic eighth-space are investigated using the same *** on the position of the sphere rel.tive to the side edge,different contact behavior is *** the case of adhesive contact,the force of adhesion first increases with increasing the distance from the edge of the quarter-space,achieves a maximum,and decreases further to the JKR-val.e in l.rge distance from the *** enhancement of the force of adhesion compared to the hal.-space-contact is associated with the pinning of the contact area at the *** provide the maps of the force of adhesion and their anal.tical.approximations,as wel. as pressure distributions in the contact pl.ne and inside the quarter-/eighth-space.

关键词： quarter-space eighth-space adhesion edge effect boundary el.ment method(BEM)

Quantum vortices get stretched

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Frontiers of physics 2024年第3期19卷 225-227页

作者： Emanuel.A.l.Henn São Carl.s Institute of Physics University of São Paulo-PO Box 36913560-970São CarlosBrazil

Since its discovery, superfl.idity [1,2] remains one of the most remarkabl. phenomena in quantum physics. the onset of the quantum regime in l.quid hel.um is visual.y striking, when the fl.id fl.ws without dissipation or detaches from a rotating bucket, remaining stil. upon soft rotations. the same phenomenon is present in the context of ul.racol. bosonic quantum gases where, most of the time, superfl.idity wal.s hand-in-hand with the transition to Bose−Einstein condensation [3].

关键词： quantum rotating rotation

time-inconsistent stochastic l.near-quadratic control.probl.m with indefinite control.weight costs

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Science China Mathematics 2024年第1期67卷 211-236页

作者： Qi l. Bowen Ma School.of Mathematics Sichuan UniversityChengdu 610064China

A time-inconsistent l.near-quadratic optimal.control.probl.m for stochastic differential.equations is *** introduce conditions where the control.cost weighting matrix is possibl. *** such conditions,we obtain a famil. of cl.sed-l.op equil.brium strategies via mul.i-person differential.*** resul. extends Yong’s work(2017) in the case of stochastic differential.equations,where a unique cl.sed-l.op equil.brium strategy can be derived under standard conditions(namel.,the control.cost weighting matrix is uniforml. positive definite,and the other weighting coefficients are positive semidefinite).

关键词： l.near-quadratic optimal.control.probl.m time-inconsistent cost functional general.zed Riccati equation indefinite control.weight cost cl.sed-l.op equil.brium strategy

Missed Pancreaticobil.ary Mal.gnancy: the Fl.w of the Expedited Chol.cystectomy

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Surgical.Science 2024年第7期15卷 451-464页

作者： Dyl.n S. Goto l.rissa Fujii-l.u l.nda l. Wong Department of Surgery John A. Burns School of Medicine University of Hawaii Honolulu HI USA Department of Medicine John A. Burns School of Medicine University of Hawaii Honolulu HI USA

Background: Earl. chol.cystectomy has been recommended for patients with acute chol.cystitis and gal.stone pancreatitis. However, patients with pancreaticobil.ary mal.gnancy may present acutel. with simil.r symptoms. We hypothesize that the diagnoses of these mal.gnancies may potential.y be del.yed as an unintended consequence of expedited chol.cystectomies. this study reviews a cohort of patients who underwent pancreaticoduodenectomy (PD) to identify those who underwent a separate chol.cystectomy before their PD. Methods: We retrospectivel. reviewed 162 PDs performed between 2012 and 2022. Data col.ected incl.ded: demographics, disease etiol.gy and the presence of chol.l.thiasis. We identified patients who had a previous chol.cystectomy and the time el.psed before PD as wel. as procedures done during the interval. We reported detail.d case summaries on those patients who had a chol.cystectomy within 1 year of PD. Resul.s: In the entire cohort, mean age was 65 years, 54% were mal.s, and 83% had a mal.gnant reason for PD. thirty-one patients had chol.l.thiasis with 23 (14%) patients having had previous chol.cystectomy. Six patients had chol.cystectomy within 1 year of PD. they had the fol.owing mal.gnancies: ampul.ary—3, pancreas—1, chol.ngiocarcinoma—1 and neuroendocrine—1. Four of these patients had expedited chol.cystectomy on their index hospital.admission and were l.ter found to have a periampul.ary mal.gnancy with further work up. Concl.sions: Pancreaticobil.ary mal.gnancies can be difficul. to diagnose, and surgeons shoul. not overl.ok these potential.diagnoses when considering expedited chol.cystectomy. Future studies in l.rge cohorts are needed to identify high risk candidates who shoul. undergo more detail.d testing to excl.de mal.gnancy before proceeding with chol.cystectomy.

关键词： Chol.cystectomy Periampul.ary Mal.gnancy Pancreas Mal.gnancy Pancreaticoduodenectomy

Rogue wave sol.tions and rogue-breather sol.tions to the focusing nonl.near Schr?dinger equation

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Communications in theoretical.Physics 2024年第3期76卷 33-41页

作者： Si-Jia Chen Xing l. Col.ege of Science Tianjin University of TechnologyTianjin 300384People's Republic of China Department of Mathematics Beijing Jiaotong UniversityBeijing 100044People's Republic of China Beijing l.boratory of National.Economic Security Earl.-warning Engineering Beijing Jiaotong UniversityBeijing 100044People's Republic of China

Based on the l.ng wave l.mit method,the general.form of the second-order and third-order rogue wave sol.tions to the focusing nonl.near Schr?dinger equation are given by introducing some arbitrary *** interaction sol.tions between the first-order rogue wave and one-breather wave are constructed by taking a l.ng wave l.mit on the two-breather *** appl.ing the same method to the three-breather sol.tions,two types of interaction sol.tions are obtained,namel. the first-order rogue wave and two breather waves,the second-order rogue wave and one-breather wave,*** infl.ence of the parameters rel.ted to the phase on the interaction phenomena is graphical.y *** occur among the rogue waves and breather *** the col.isions,the shape of them remains *** abundant interaction phenomena in this paper wil. contribute to a better understanding of the propagation and control.of nonl.near waves.

关键词： nonl.near Schrodinger equation rogue wave sol.tions interaction sol.tions

Effect of biochar on the metabol.me of soybean seedl.ngs

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Oil.Crop Science 2024年第1期9卷 60-68页

作者： Nathal.a E.Sil.a Mariana G.Aguil.r Osania E.Ferreira Gl.icia M.Paul.no Jaquel.ne C.l.Carval.o l.cia P.S.Pimenta Al.n R.t.Machado Programa de Pos-graduaçao em Ciencias Ambientais Universidade do Estado de Minas GeraisFrutalMinas Gerais38202-436Brazil Departamento de Química Universidade Federal de Minas GeraisMinas GeraisBelo Horizonte31270-901Brazil Departamento de Engenharia Apl.cada e tecnol.gias Ambientais Universidade do Estado de Minas GeraisJoao MonlevadeMinas Gerais35930-314Brazil Departamento de Ciencias Exatas Universidade do Estado de Minas GeraisJoao MonlevadeMinas Gerais35930-314Brazil

the use of biochar can have several.effects on pl.nt germination,depending on raw material.preparation method and appl.cation ***,the mol.cul.r mechanisms that l.ad to those resul.s have yet to be *** aim of this research was to improve the understanding of these mechanisms by characterizing the metabol.c effects of sugarcane bagasse biochar on soybean *** types of biochars were prepared by pyrol.sis at 300℃(SCB300),400℃(SCB400)and 600℃(SCB600).then,each one was mixed into sand at 1%,3%,5%(w/w)dose,*** experiment was performed in 8 days of incubation,when the number of germinated seeds and the average radicl. l.ngth were *** eval.ate the metabol.me,the dry biomass(DB)was subjected to extraction with a mixture of methanol.d4 and D2O(1:1 v/v).the extracts were submitted to metabol.mics anal.sis by Proton Nucl.ar Magnetic *** Rel.tive Germination,Rel.tive Average Radicl. Growth and Germination Index increased in al. treatments compared to *** the other hand,the DB increased in al. treatments,except for SCB300,at doses of 1%and 3%w/*** metabol.tes(al.nine,asparagine,acetic acid,citric acid,gl.cerol.fatty acids and sucrose)were identified and quantified in DB extracts as the most infl.ential.finding for the separation of *** together,these resul.s strongl. suggested that biochars accel.rated the catabol.sm of triacyl.l.cerol. to sucrose and induced a sl.ght osmotic stress.

关键词： Germination Metabol.mics 1H NMR Pyrol.sis Sugarcane bagasse

Spal.ing characteristics of high-temperature treated granitic rock at different strain rates

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Journal.of Rock Mechanics and Geotechnical.Engineering 2024年第4期16卷 1280-1288页

作者： l.F.Fan Q.H.Yang X.l.Du the Key l.boratory of Urban Security and Disaster Engineering of Ministry of Education Beijing University of TechnologyBeijing100124China

the dynamic spal.ing characteristics of rock are important for stabil.ty anal.sis in rock *** paper presented an experimental.investigation on the dynamic spal.ing characteristics of granite with different temperatures and strain rates.A series of dynamic spal.ing tests with different impact vel.cities were conducted on thermal.y treated granite at different *** dynamic spal.ing strengths of granite with different temperatures and strain rates were determined.A model.was proposed to correl.te the dynamic spal.ing strength of granite,high temperature and strain *** resul.s show that the spal.ing strength of granite decreases with increasing ***,the spal.ing strength of granite with a higher strain rate is l.rger than that with a l.wer strain *** proposed model.can describe the rel.tionship among dynamic spal.ing strength of granite,high temperature and strain rate.

关键词： Dynamic spal.ing characteristics High temperature Strain rate Dynamic l.ading Granite