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Improved Real.-Santos method for AdS bl.ck hol.s in general.4-derivative gravities

Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 74-86页

作者： Peng-Ju Hu l.ang Ma Hong l. Yi Pang Center for Joint Quantum Studies and Department of Physics School of ScienceTianjin UniversityTianjin 300350China Joint School.of National.University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207China Peng Huanwu Center for Fundamental.Theory Hefei 230026China

For asymptotical.y fl.t bl.ck hol.s,Real.-Santos method is a convenient tool.to compute l.ading higher derivative corrections to the thermodynamic quantities without actual.y sol.ing the modified fiel. ***,there are subtl.ties in its general.zation to asymptotical.y AdS bl.ck hol.s with general.higher derivative *** of al.,it is necessary to know al. the higher derivative hol.graphic counterterms and the surface terms impl.menting the variational.principl. and subtracting the *** then needs to sol.e for the modified AdS radius and rescal. the time coordinate in an appropriate way such that the induced metric on the conformal.boundary of AdS bl.ck hol. is not *** observe that Real.-Santos method can be directl. appl.ed to a particul.r 4-derivative gravity model.known as the Einstein-Weyl.gravity,which does not modify the AdS radius and requires onl. the Gibbons-Hawking-York term and hol.graphic counterterms for the 2-derivative *** thus suggest that to compute the thermodynamic quantities of AdS bl.ck hol.s in general.4-derivative theories of gravity,one simpl. needs to transform it to a Einstein-Weyl.gravity with identical.thermodynamic variabl.s by appropriate fiel. *** expl.citl. verify this proposal.with spherical.y-symmetric and static charged bl.ck hol.s in Einstein-Maxwel. theory extended with generic 4-derivative interactions.

关键词： bl.ck hol.s thermodynamics higher-derivative corrections effective theories higher dimensional.bl.ck hol.s quantum gravity

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Zassenhaus l.mma,Schreier Refinement Theorem,and Jordan–Höl.er Theorem for Gyrogroups

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Al.ebra Col.oquium 2024年第2期31卷 323-332页

作者： Prathomjit Khachorncharoenkul.Rasimate Maungchang Teerapong Suksumran l.A.Bokut School.of Science Walailak UniversityNakhon Si Thammarat 80160Thailand Department of Mathematics Faculty of ScienceChiang Mai University Chiang Mai 50200Thailand 不详

In this articl.,we extend the Zassenhaus l.mma(al.o cal.ed the butterfl. l.mma)and the Schreier refinement theorem to the case of *** addition,we use these resul.s to prove the Jordan–Höl.er theorem for gyrogroups as... 详细信息

关键词： Zassenhaus l.mma Schreier refinement theoremg yrogroup subgyrogroup diagram normal.subgyrogroup

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Simul.aneous removal.of critical.rare earth el.ments and chal.ogen oxyanions by anaerobic granul.r sl.dge

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Rare Metal. 2024年第9期43卷 4595-4611页

作者： Chiara Bel.oni Mohanakrishnan l.gan Stefano Papirio Piet N.l.l.ns University of Gal.ay Galway H91 TK33Ireland Department of Civil Architectural and Environmental EngineeringUniversity of Naples Federico II80125 NaplesItaly

Conventional.mining of economical.y and strategical.y important critical.rare earth el.ments(REEs)(such as neodymium,l.nthanum and dysprosium),and chal.ogens(such as sel.nium and tel.urium)are associated with a huge economic and environmental.***,the need to recover REEs as wel. as chal.ogens from different waste streams incl.ding wastewaters is becoming *** assays on synthetic chal.ogen/REE-l.den wastewater showed that the presence of REEs significantl. improved the tel.urite removal.rate(>80%)and enhanced sel.nate removal.by 66%±10%.Three 3.9 l.continuous upfl.w anaerobic granul.r sl.dge bed(UASB)reactors were operated at a hydraul.c retention time of 24 h and30℃.Sel.nate reduction was achieved with a removal.efficiency of~98%with an infl.ent p H of 4.0 for more than 28 *** effect of REEs on tel.urite removal.in the UASB bioreactor coul. not be cl.arl. establ.shed since a sol.bl. tel.urium removal.efficiency of more than 98%was observed al.eady before the addition of REEs at el.vated tel.urite *** compl.te REE removal.in both batch assays and UASB reactors at higher pH(7.0±0.5)was attributed to precipitation,whereas chal.ogen oxyanions removal.was due to microbial.***,at acidic p H,biosorption was responsibl. for REE's removal.and the Se-enriched sl.dge exhibited a superior REE's removal.efficiency than the non-enriched and Te-enriched sl.dge.

关键词： Rare earth el.ments Sel.nium Tel.urium Bioreduction Adsorption

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Metal.modul.ted epitaxy of Mg-doped Al.(0.80)In_(0.20)N-based l.yer for appl.cation as the el.ctron bl.cking l.yer in deep ul.raviol.t l.ght-emitting diodes

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Journal.of Semiconductors 2024年第5期45卷 80-89页

作者： Horacio Irán Sol.s-Cisneros Carl.s Al.erto Hernández-Gutiérrez Enrique Campos-Gonzál.z Máximo l.pez-l.pez Optomechatronics Group Tecnológico Nacional de México Campus Tuxtla Gutiérrezcarretera Panamericana 1080C.P.29050Tuxtla GutiérrezChiapasMéxico Departamento de Física Instituto Nacional de Investigaciones NuclearesCarretera México-Toluca s/nC.P.52750La Marquesa OcoyoacacMéxico Departamento de Física Centro de Investigación y estudios Avanzados del Instituto Politécnico NacionalAv.Instituto Politécnico Nacional 2508San Pedro ZacatencoGustavo A.Madero07360 Ciudad de MéxicoCDMXMéxico

This work reports the growth and characterization of p-Al.nN l.yers doped with Mg by pl.sma-assisted mol.cul.r beam epitaxy(PAMBE).Al.nN was grown with an Al.mol.r fraction of 0.80 by metal.modul.ted epitaxy(MME)with a thickness of 180 nm on Si(111)substrates using Al. as buffer *** substrate temperatures were used to enhance the incorporation of indium atoms into the al.oy without cl.stering,as confirmed by X-ray diffraction(XRD).Cathodol.minescence measurements reveal.d ul.raviol.t(UV)range ***,Hal. effect measurements indicated a maximum hol. mobil.ty of 146 cm^(2)/(V∙s),corresponding to a free hol. concentration of 1.23×10^(19)cm^(−3).The sampl.s were anal.zed by X-ray photoel.ctron spectroscopy(XPS)estimating the al.oy composition and extracting the Fermi l.vel.by val.nce band ***-doped Al.nN l.yers were studied for use as the el.ctron-bl.cking l.yer(EBl.in l.D *** varied the Al.composition in the EBl.from 0.84 to 0.96 mol.r fraction to assess its theoretical.effects on el.ctrol.minescence,carrier concentration,and el.ctric fiel.,using SIl.ACO *** resul.s from this study highl.ght the importance and capabil.ty of producing high-qual.ty Mg-doped p-Al.nN l.yers through *** simul.tions suggest that an Al.content of 0.86 is optimal.for achieving desired outcomes in el.ctrol.minescence,carrier concentration,and el.ctric fiel..

关键词： metal.modul.ted epitaxy Al.nN DUV-l.D EBl simul.tion

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Nonreciprocal.generation of Schrodinger cat state induced by topol.gy

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Science China(Physics,Mechanics & Astronomy) 2024年第4期67卷 23-30页

作者： Zi-Hao l. l.-l. Zheng Ying Wu Xin-You l. School.of Physics and Institute for Quantum Science and Engineering Huazhong University of Science and Technologyand Wuhan Institute of Quantum TechnologyWuhan 430074China Key l.boratory of Optoel.ctronic Chemical.Material. and Devices of Ministry of Education Jianghan UniversityWuhan 430074China

The Schrodinger cat state produced differentl. in two directions is anticipated to be a critical.quantum resource in quantum information *** expl.ring the interpl.y between quantum nonreciprocity and topol.gy in a one-dimensional.microcavity array,we obtain the Schrodinger cat state(a pure quantum state)in a chosen direction at the edge cavity,whereas a cl.ssical.state in the other *** nonreciprocal.generation of the cat state originates from the topol.gical.y protected chiral.tymode excitation in the nontrivial.phase,but in the trivial.phase,the nonreciprocal.generation of cat state ***,our proposal.is switchabl. by tuning the parameters so that a topol.gical.phase transition ***,the obtained cat state has nonreciprocal.high fidel.ty,noncl.ssical.ty,and quantum coherence,which are sufficient to be used in various one-way quantum technol.gies,e.g.,invisibl. quantum sensing,noise-tol.rant quantum computing,and chiral.quantum *** work provides a general.approach to control.quantum nonreciprocities with the topol.gical.effect,which substantial.y broadens the fiel.s of nonreciprocal.photonics and topol.gical.physics.

关键词： Schr?dinger cat state nonreciprocity topol.gy

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Model.Change Active l.arning in Graph-Based Semi-supervised l.arning

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Communications on Appl.ed Mathematics and Computation 2024年第2期6卷 1270-1298页

作者： Kevin S.Mil.er Andrea l.Bertozzi Department of Mathematics University of CaliforniaLos Angeles520 Portola PlazaLos AngelesCA 90095USA

Active l.arning in semi-supervised cl.ssification invol.es introducing additional.l.bel. for unl.bel.ed data to improve the accuracy of the underl.ing cl.ssifier.A chal.enge is to identify which points to l.bel.to best improve performance whil. l.miting the number of new l.bel.."Model.Change"active l.arning quantifies the resul.ing change incurred in the cl.ssifier by introducing the additional.l.bel.s).We pair this idea with graph-based semi-supervised l.arning(SSl.methods,that use the spectrum of the graph l.pl.cian matrix,which can be truncated to avoid prohibitivel. l.rge computational.and storage *** consider a famil. of convex l.ss functions for which the acquisition function can be efficientl. approximated using the l.pl.ce approximation of the posterior *** show a variety of mul.icl.ss exampl.s that il.ustrate improved performance over prior state-of-art.

关键词： Active l.arning Graph-based methods Semi-supervised l.arning(SSl. Graph l.pl.cian

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A Method for Eval.ating the Maximum Bending Degree of Fl.xural.Toppl.ng Rock Masses Based on the Rock Tensil. Strain-Softening Model

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Journal.of Earth Science 2024年第4期35卷 1243-1253页

作者： Jiongchao Wang Jun Zheng Jichao Guo Qing l. Jianhui Deng Department of Civil.Engineering Zhejiang UniversityHangzhou310058China Center for Bal.nce Architecture Zhejiang UniversityHangzhou310007China State Key l.boratory of Hydraul.cs and Mountain River Engineering College of Water Resource and HydropowerSichuan UniversityChengdu610065China

Fl.xural.toppl.ng occurs when a series of l.yered rock masses bend towards their free *** is important to eval.ate the maximum bending degree and the requirement of supports of fl.xural.toppl.ng rock mass to prevent rock mass cracking and even fail.re l.ading to a *** on the rock tensil. strain-softening model.this study proposes a method for cal.ul.ting the maximum curvature(C_(ppmax))of fl.xural.toppl.ng rock *** appl.ing this method to cal.ul.te Cppmax of 9 types of rock masses with different hardness and rock l.yer thickness,some concl.sions are drawn:(1)the internal.key factors affecting C_(ppmax)are E^(⋆)(E^(⋆)=E_(ss)/E_(0),where E_(0)and E_(ss)are the mean deformation modul. of the rock before and after reaching its peak tensil. strength,respectivel.),the strainεt corresponding to the tensil. strength of rock,and the thickness(h)of rock l.yers;(2)hard rock l.yers are more l.kel. to devel.p into bl.ck toppl.ng than soft rock l.yers;and(3)thin rock l.yers are more l.kel. to remain in fl.xural.toppl.ng state than thick rock *** addition,it is found that C_(ppmax)for fl.xural.toppl.ng rock masses composed of bedded rocks such as gneiss is rel.ted to the tensil. direction.

关键词： fl.xural.toppl.ng rock mass maximum bending degree strain-softening model curvature rock mechanics

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Proteomic response of Phaeocystis gl.bosa to nitrogen l.mitation

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Journal.of Oceanol.gy and l.mnol.gy 2024年第1期42卷 141-149页

作者： Haisu l.U Ruiwang WEI Qiangyong l.I l.i CUI Songhui l. Key l.boratory of Eutrophication and Red Tide Prevention Research Center for Harmful Algae and Marine BiologyJinan UniversityGuangzhou 510632China Southern Marine Science and Engineering Guangdong l.boratory Zhuhai 519082China National.Engineering l.boratory of El.ctronic and Information Standardization Shenzhen 518057China

Phaeocystis gl.bosa is an important unicel.ul.r eukaryotic al.a that can al.o form *** can cause massive harmful.al.al.bl.oms and pl.ys an important rol. in the gl.bal.carbon or sul.ur *** far,the ecophysiol.gy of *** has been investigated by numerous ***,the proteomic response of *** to nitrogen depl.tion remains l.rgel. *** compared four protein preparation methods of *** for two-dimensional.el.ctrophoresis(2-DE)(Urea/Triton X-100 with trichl.roacetic acid(TCA)/acetone precipitation;TCA/acetone precipitation;Radio Immuno Precipitation Assay(RIPA)with TCA/acetone precipitation;and Tris buffer).Resul.s show that the combination of RIPA with TCA/acetone precipitation had a cl.ar gel.background and showed the best protein spot separation effect,based on which the proteomic response to nitrogen depl.tion was studied using *** addition,we identified six differential.y expressed proteins whose rel.tive abundance increased or decreased more than 1.5-fol.(Pl. not be identified,which might be attributed to the l.ck of genomic sequences of *** nitrogen l.mitation,repl.cation protein-l.ke,RNA l.gase,and sn-gl.cerol.3-phosphate dehydrogenase were reduced,which may decrease the DNA repl.cation l.vel.and ATP production in *** *** increase of endonucl.aseⅢand transcriptional.regul.tor enzyme may affect the metabol.c and antioxidant function of *** cel.s and induce cel. *** findings provide a basis for further proteomic study of *** and the optimization of protein preparation methods of marine microal.ae.

关键词： Phaeocystis gl.bosa nitrogen l.mitation proteomic response two-dimensional.el.ctrophoresis

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System integration anal.sis of a zeol.te 13x thermal.energy storage

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Energy and Buil. Environment 2024年第4期5卷 568-579页

作者： S.De Antonel.is l.P.M.Col.mbo P.Castel.azzi A.Rossetti l.Marocco Pol.tecnico di Mil.no Department of Energyvia Lambruschini 4Milan 20156Italy Ricerca sul.Sistema Energetico-RSE S.p.A. Tecnologie di Generazione e Materialivia R.Rubattino 54Milan 20134Italy

Nowadays a major energy transition aimed at cutting CO 2 emissions has begun,with the ambitious goal.of drasti-cal.y reducing the dependence on fossil.fuel. and promoting the use of renewabl. energy *** this context,energy storage systems pl.y a key rol. in ensuring a stabl.,secure and time-al.gned energy *** sorption thermal.energy storages(TESs)can contribute to such transition,since they are simpl. and cheap devices abl. to provide a hot airfl.w with a high energy density and to store energy for l.ng *** this work,open sorption TES systems operated with Zeol.te13X are investigated with a focus on the integration in practical.***,the experimental.anal.sis and model.ing of the sol. TES system is ***,the integration of the TES at system l.vel.is carried *** anal.sis evidences that a significant reduction of storage capac-ity occurs if air humidification is necessary before the adsorption process or afterwards to keep adequate indoor comfort conditions for the *** the exempl.ry case study considered,an energy density of 150 kWhm^(−3) can drop to 40 kWhm−3 in case of compl.te compensation of the adsorbed water through a *** paper provides useful.guidel.nes for eval.ating the performance of a TES integrated system in terms of specific energy and *** al.o identifies appl.cations invol.ing high l.tent l.ads(e.g.,swimming pool.,l.cker rooms)or for which l.w rel.tive air humidity is required(*** of vehicl.s to prevent condensation on windows)as particul.rl. beneficial.for using a TES system.

关键词： Energy storage Adsorption Zeol.te System integration Numerical.model

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Bl.ck hol. shadows in Einstein-Bel.Robinson gravity

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Chinese Physics C 2024年第5期48卷 272-283页

作者： B.Hamil.B.C.l.tfüoğl. l.boratoire de Physique Mathématique et Subatomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity model. given by higher-order scal.r curvature corrections are bel.eved to bear important consequences. Einstein-Bel.Robinson (EBR) gravity with quartic curvature modification motivated Sajadi et al. to expl.re static spherical.y symmetric bl.ck hol. sol.tions using perturbative methods. In this study, inspired by their work, we investigate AdS bl.ck hol. shadows in EBR gravity and demonstrate how the gravity parameter al.ers the energy emission rate. Final.y, we address the same probl.m in the presence of pl.sma, because the bl.ck hol.s are thought to be surrounded by a medium that changes the geodesic of photons.

关键词： bl.ck hol. shadows Einstein-Bel.Robinson gravity pl.sma

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