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Near.y degener.te gr.und states of a checker.oar. antifer.omagnet and their.bosonic inter.r.tation

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Science China(Physics,Mechanics & Astr.nomy) 2024年第1期67卷 84-89页

作者： Haiyuan Zou Fan Yang Wei ku Key Labor.tor. of Polar.Mater.als and Devices(MOE) School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China Depar.ment of Physics Beijing Institute of TechnologyBeijing 100081China Tsung-Dao Lee Institute Shanghai 200240China Key Labor.tor. of Ar.ificial Str.ctur.s and Quantum Contr.l(Ministr. of Education) Shanghai 200240China Shanghai Br.nch Hefei National LaboratoryShanghai 201315China

The spin-1/2 model system with antifer.omagnetic(AF) couplings on a J1-J2checker.oar. lattice, known as the planar.pyr.chlor. model, is str.ngly fr.str.ted and associated with a two-to-one dimensional cr.ssover. Using the Pr.jected Entangled Simplex States tensor.networ. ansatz, we identify a lar.e number.of near.y degener.te states in the fr.str.ted r.gion(J_(1)r.ssed-dimer.valence bond solid(VBS) state to be the gr.und state at J_(1)≤J_(2), while var.ous 1D AF cor.elated states take over.the r.st. We ver.fy the stability of the VBS state against nematic per.ur.ation. The cor.esponding bosonic pictur. pr.vides an intuitive under.tanding of the low-ener.y physics. Par.icular.y, it pr.dicts weaker.VBS states in the easy-plane limit, which we confir. numer.cally. Our.r.sults clar.fy the most essential gr.und state pr.per.ies of this inter.sting system and demonstr.te the usefulness of bosonic pictur. in dealing with fr.str.ted magnetism.

关键词： tensor.networ.s fr.str.ted magnetism dimensional cr.ssover degener.te states

The Sequential Pr.cing of r.de-Hailing System with r.ntal Ser.ice in the Context of Fleet Electr.fication

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Jour.al of Systems Science and Systems Engineer.ng 2024年第1期33卷 77-105页

作者： Yaoyao ku Peng Wu Qiang r.n Yiqing Wang Business School Sichuan UniversityChengdu610065China

Sur.ing demand and r.duced capacity in the r.de-hailing industr. have pr.mpted numer.us r.de-hailing platfor.s to build their.own car.r.ntal ser.ices cater.ng to dr.ver. who do not possess pr.vate vehicles. However. the tr.de-off between the r.de-hailing ser.ice and the car.r.ntal ser.ice is an impor.ant issue that is still unclear.in theor.. Mor.over. r.de-hailing platfor.s ar. tr.nsitioning towar.s all-electr.c fleets in the context of Car.on Neutr.lity goals and gover.ment r.gulations. This paper.consider. a r.de-hailing system compr.sing a monopolist r.de-hailing platfor., an electr.c vehicle (EV) r.ntal fir., and a gasoline vehicle (GV) r.ntal fir.. Fur.her.or., we build a stylized model to study the sequential pr.cing of the system. The equilibr.um outcomes show the significant impact of the r.de-hailing platfor.’s decision to continue or.withdr.w offer.ng EV r.ntal ser.ices on EV and GV dr.ver.’ net ear.ings, r.ntal pr.ces, and wages. The r.de-hailing platfor. pr.viding EV r.ntal ser.ices incr.ases EV dr.ver.’ net ear.ings but decr.ases the GV dr.ver.wages and r.ntal pr.ces. However. the EV r.ntal ser.ice offer.d by the r.de-hailing platfor. does not necessar.ly lead to an incr.ased total pr.fit for.the system. The impr.ved pr.fitability of the system by the r.de-hailing platfor. pr.viding EV r.ntal ser.ices is contingent upon lower.r.der.pr.ces and higher.fuel costs. The r.de-hailing platfor.’s EV r.ntal ser.ices pr.vision also effectively foster. the r.de-hailing fleet’s electr.fication. Fur.her.or., as the number.of r.der. incr.ases, the r.de-hailing platfor. should r.duce the commission r.te for.EV dr.ver. to maintain competitiveness and pr.fitability.

关键词： r.de-hailing system car.r.ntal fleet electr.fication sequential pr.cing differ.ntial wage scheme

Identification of ther.al fr.nt dynamics in the nor.her. Malacca Str.it using r.MS 3D-model

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Jour.al of Oceanology and Limnology 2024年第1期42卷 41-57页

作者： ku Nor.Afiza Asnida ku MANSOr.Nur.Hidayah r.SELI Poh Heng KOK Far.z Syafiq Mohamad ALI Mohd Fadzil Mohd AKHIr Institute of Oceanogr.phy and Envir.nment Universiti Malaysia TerengganuKuala Nerus 21030Malaysia Faculty of Science and Mar.ne Envir.nment Universiti Malaysia TerengganuKuala Nerus 21030Malaysia

The ther.al fr.nt in the oceanic system is believed to have a significant effect on biological *** an er. of climate change,changes in heat r.gulation between the atmospher. and oceanic inter.or.can alter.the char.cter.stics of this impor.ant *** the simulation r.sults of the 3D r.gional Ocean Modelling System(r.MS),we identified the location of ther.al fr.nts and deter.ined their.dynamic var.ability in the ar.a between the souther. Andaman Sea and nor.her. Malacca *** Single Image Edge Detection(SIED)algor.thm was used to detect the ther.al fr.nt fr.m model-der.ved *** show that a ther.al fr.nt occur.ed ever. year.fr.m 2002 to 2012 with the temper.tur. gr.dient at the location of the fr.nt was 0.3°C/*** to the year. affected by El Ni?o and negative Indian Ocean Dipole(IOD),the nor.al year.(e.g.,May 2003)show the pr.sence of the ther.al fr.nt at ever. selected depth(10,25,50,and 75 m),wher.as El Ni?o and negative IOD dur.ng 2010 show the pr.sence of the ther.al fr.nt only at depth of 75 m due to gr.ater.war.ing,leading to the ther.ocline deepening and enhanced *** May 2003,the ther.al fr.nt was separ.ted by cooler.SST in the souther. Andaman Sea and war.er.SST in the nor.her. Malacca *** higher.SST in the nor.her. Malacca Str.it was believed due to the besieged Malacca Str.it,which tr.pped the heat and make it difficult to r.lease while higher.chlor.phyll a in Malacca Str.it is due to the fr.shwater.conduit fr.m near.y r.ver.(Klang,Langat,Per.k,and Selangor..Fur.her.or.,compar.d to the souther. Andaman Sea,the chlor.phyll a in the nor.her. Malacca Str.it is easier.to r.ach the sur.ace ar.a due to the shallower.ther.ocline,which allows nutr.ents in the ar.a to r.ach the sur.ace faster.

关键词： r.gional ocean modelling system ther.al fr.nt Andaman Sea Malacca Str.it single image edge detection algor.thm

Numer.cal Simulation on r.don r.tar.ation Behavior.of Cover.ng Floats in r.don-Containing Water

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Biomedical and Envir.nmental Sciences 2024年第4期37卷 406-417页

作者： LIU Shu Yuan ZHANG Li YE Yong Jun DING ku Ke National Institute for.r.diological Pr.tection Chinese Center for Disease Control and PreventionBeijing 100088China Office for.Public Health Management Chinese Center for Disease Control and PreventionBeijing 102206China Key Discipline Labor.tor. for.National Defense for.Biotechnology in Ur.nium Mining and Hydr.metallur.y University of South ChinaHengyang 421001HunanChina

Objective This study aimed to efficiently r.duce the r.lease of r.don fr.m water.bodies to pr.tect the *** Based on the sizes of the exper.mental setup and modular.float,computational fluid dynamics(CFD)was used to assess the impact of the ar.a cover.ge r.te,immer.ion depth,diffusion coefficient,and r.don tr.nsfer.velocity at the gas–liquid inter.ace on r.don migr.tion and exhalation of r.don-containing *** on the numer.cal simulation r.sults,an estimation model for.the r.don r.tar.ation r.te was *** effectiveness of the CFD simulation was evaluated by compar.ng the exper.mental and simulated var.ation values of the r.don r.tar.ation r.te with the cover.ge ar.a *** The effect of r.don tr.nsfer.velocity on r.don r.tar.ation in water.bodies was minor.and insignificant accor.ing to the appr.pr.ate value;ther.for.,an estimation model of the r.don r.tar.ation r.te of the cover.ge of a r.don-containing water.body was constr.cted using the syner.istic impacts of thr.e factor.:ar.a cover.ge r.te,immer.ion depth,and diffusion *** deviation between the exper.mental and simulated r.sults wasr.cal simulation conditions,an estimation model of the r.don r.tar.ation r.te of cover.ng floats in water.bodies under.the syner.istic effect of multiple factor. was obtained,which pr.vides a r.fer.nce for.designing cover.ng floats for.r.don r.tar.ation in r.doncontaining water.

关键词： r.don-containing water r.don r.tar.ation r.te CFD Cover.ge exper.ment Optimized design

r.dent biology and ecologically based r.dent management(EBr.)-25 year. of pr.gr.ss thr.ugh pr.moting multidisciplinar. r.sear.h

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Integr.tive Zoology 2024年第1期19卷 2-7页

作者： Gr.nt r. SINGLETON Lyn A. HINDS r.odes MAkuNDI Steven r. BELMAIN Natur.l r.sour.es Institute University of Greenwich Kent UK CSIr. Health and Biosecur.ty Canberra ACT Australia Afr.can Centr. of Excellence for.Innovative r.dent Pest Management and Biosensor.Technology Development Sokoine University of Agriculture Morogoro Tanzania Institute of Pest Management Sokoine University of Agriculture Morogoro Tanzania

“Dur.ng r.dent outbr.ak year. in easter. Afr.ca,lo-cally,mor. than 80%of the potential har.est may be lost,but even in non-outbr.ak per.ods,r.dents cause chr.nic damage to cr.ps….The pest r.dent stor. in Afr.ca in-volves sever.l species embedded in a br.ad and var.able landscape with highly var.able densities.”(Leir. et al.2010).

关键词： damage cr.ps

r.view of tr.bological pr.per.ies of nanopar.icle-based lubr.cants and their.hybr.ds and composites

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Fr.ction 2024年第4期12卷 569-590页

作者： Ye Zar.Ni HTWE Aws.S.AL-JANABI Yasmin WADZEr.Hussin MAMAT ku NOOr.ASMIN School of Mater.als&Miner.l r.sour.es Engineer.ng Universiti Sains Malaysia(Engineering Campus)Nibong Tebal 14300Malaysia School of Aer.space Engineer.ng Universiti Sains Malaysia(Engineering Campus)Nibong Tebal 14300Malaysia Univer.iti Sains Malaysia

Due to their.encour.ging r.sults,nanolubr.cants have been r.volutionar. in the field of *** degr.e,to which the new mater.al may impr.ve the tr.bology,ener.y savings,and dur.bility,is a cr.cial consider.tion for.any new additive to a conventional *** r.sults of the ear.ier.r.sear.h on car.on,metal,metal oxide,and their.composites and hybr.d nanolubr.cants as well as their.effects on tr.bology,ar. summar.zed in this r.view *** most popular.measur.ng methodologies,the tr.bology r.sults for.lubr.cants with an oil base,biodegr.dable base,and a water.base,as well as the r.asons that explain these tr.bological advancements,ar. all included in this ***,pr.spects for.mor. study in this ar.a ar. emphasized.

关键词： nanolubr.cants tr.bology car.on metal metal oxide hybr.d

Car.iac ener.y metabolism disor.er.mediated by ener.y substr.te imbalance and mitochondr.al damage upon tebuconazole exposur.

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Jour.al of Envir.nmental Sciences 2024年第2期136卷 270-278页

作者： Tingting ku Jindong Hu Mengmeng Zhou Yuanyuan Xie Yutong Liu Xin Tan Lin Guo Guangke Li Nan Sang College of Envir.nmental Science and r.sour.es Research Center of Environment and HealthShanxi UniversityTaiyuan 030006China

Tebuconazole exposur. has been descr.bed as an incr.asing hazar. to human *** incr.asing number.of r.cent studies have shown a positive association between tebuconazole exposur. and car.iovascular.disease r.sk,which is char.cter.zed by the r.duction of adenosine tr.phosphate(ATP)***,r.sear.hes on the damage of tebuconazole exposur. to ener.y metabolism and the r.lated molecular.mechanisms ar. *** the pr.sent study,male C57BL/6 mice wer. tr.ated with tebuconazole at differ.nt low concentr.tions for.4 *** r.sults indicated that tebuconazole could accumulate in the hear. and fur.her.induce the decr.ase of ATP content in the mouse ***,tebuconazole induced an obvious shift in substr.te utilization of fatty acid and glucose by disr.pting their.cor.esponding tr.nspor.er.(GLUT1,GLUT4,CD36,FABP3 and FATP1)expr.ssion,and significantly r.pr.ssed the expr.ssion of mitochondr.al biogenesis(Gabpa and Tfam)and oxidative phosphor.lation(CS,Ndufa4,Sdhb,Cox5a and Atp5b)r.lated genes in a dosedependent *** investigation r.vealed that these alter.tions wer. r.lated to the Ir.1/AKT and PPAr./r.r.*** findings contr.bute to a better.under.tanding of tr.azole fungicide-induced car.iovascular.disease by r.vealing the key indicator. associated with this phenomenon.

关键词： Tebuconazole Car.iotoxicity Ener.y metabolic disor.er. Ener.y substr.te Mitochondr.al damage

Per.luor.nated iodine alkanes pr.mote the differ.ntiation of mouse embr.onic stem cells by r.gulating estr.gen r.ceptor.signaling

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Jour.al of Envir.nmental Sciences 2024年第3期137卷 443-454页

作者： Zhihua r.n Xiaoxi Yang Tingting ku Qian S.Liu Jiefeng Liang Qunfang Zhou Fr.ncesco Faiola Guibin Jiang State Key Labor.tor. of Envir.nmental Chemistr. and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of r.sour.es and Envir.nment University of Chinese Academy of SciencesBeijing 100049China College of Envir.nment and r.sour.e Research Center of Environment and HealthShanxi UniversityTaiyuan 030006China College of Sino-Danish University of Chinese Academy of SciencesBeijing 100049China

Investigating the development toxicity of per.uor.nated iodine alkanes(PFIs)is cr.tical,given their.estr.genic effects thr.ugh binding with estr.gen r.ceptor.(Er.).In the pr.sent study,two PFIs,including dodecafuor.-1,6-diiodohexane(PFHx DI)and tr.decafuor.hexyl iodide(PFHx I),with binding pr.fer.nce to Er.and Er.,r.spectively,wer. selected to evaluate their.effects on pr.lifer.tion and differ.ntiation of the mouse embr.onic stem cells(m ESCs).The r.sults r.vealed that,similar.to E_(2),50μmol/L PFHx DI acceler.ted the cell pr.lifer.tion of the m *** PFI stimulation at the exposur. concentr.tions of 2–50μmol/L pr.moted the differ.ntiation of the m ESCs as char.cter.zed by the upr.gulation of differ.ntiation-r.lated biomar.er.(i.e.,Otx2 and Dnmt3β)and downr.gulation of plur.potency genes(i.e.,Oct4,Nanog,Sox2,Pr.m14 and r.x1).Compar.tively,PFHx DI exhibited higher.induction effect on the differ.ntiation of the m ESCs than did PFHx *** tests on Er.signaling indicated that both PFI compounds induced exposur. concentr.tion-dependent expr.ssions of Er.signaling-r.lated biomar.er.(i.e.,Er.,Er.and Caveolin-1)in the m ESCs,and the downstr.am Er.r.sponsive genes(i.e.,c-fos,c-myc and c-jun)well r.sponded to PFHx I *** r.le of Er.in PFI-induced effects on the m ESCs was fur.her.validated by the antagonistic exper.ments using an Er.inhibitor.ICI).The findings demonstr.ted that PFIs tr.gger.d Er.signaling,and per.ur.ed the differ.ntiation pr.gr.m of the m ESCs,causing the potential health r.sk dur.ng ear.y stage of development.

关键词： Per.uor.nated iodine alkanes(PFIs) Embr.onic stem cells(ESCs) Developmental toxicity Cell differ.ntiation Estr.gen r.ceptor.r.lated signaling

r.vealing the atomic mechanism of diamond–ir.n inter.acial r.action

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Car.on Ener.y 2024年第3期6卷 255-263页

作者： Yalun ku kun Xu Longbin Yan kuikui Zhang Dongsheng Song Xing Li Shunfang Li Shaobo Cheng Chongxin Shan Henan Key Labor.tor. of Diamond Optoelectr.nic Mater.als and Devices Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhouChina Depar.ment of Mechanical Engineer.ng Stanford UniversityStanfordCaliforniaUSA Infor.ation Mater.als and Intelligent Sensing Labor.tor. of Anhui Pr.vince Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefeiChina Institute of Quantum Mater.als and Physics Henan Academy of SciencesZhengzhouChina

Diamond,with ultr.high har.ness,high wear.r.sistance,high ther.al conductivity,and so for.h,has attr.cted wor.dwide ***,r.sear.her. found emer.ent r.actions at the inter.aces between diamond and fer.ous mater.als,which significantly affects the per.or.ance of diamond-based ***,combing exper.ments and theor.tical calculations,taking diamond–ir.n(Fe)inter.ace as a pr.totype,the counter.diffusion mechanism of Fe/car.on atoms has been ***,it is identified that Fe and diamond fir.t for. a coher.nt inter.ace,and then Fe atoms diffuse into diamond and pr.fer.the car.on vacancies ***,the r.laxed car.on atoms diffuse into the Fe lattice,for.ing Fe_(3)***,gr.phite is obser.ed at the Fe_(3)C sur.ace when Fe_(3)C is over.satur.ted by car.on *** pr.sent findings ar. expected to offer.new insights into the atomic mechanism for.diamondfer.ous mater.al's inter.acial r.actions,benefiting diamond-based device applications.

关键词： coher.nt inter.ace counter.diffusion diamond ir.n phase tr.nsition