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Molecular en.in.erin. of an.electron.tran.port triarylphosphin. oxide-triazin. con.ugate toward high-performan.e phosphorescen. organ.c light-emittin. diodes with remarkable stability

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Scien.e Chin. Chemistry 2020年第7期63卷 904-910页

作者： ling-ling Chen.ling Pen. Lin.Ye Wan. Xu-Hui Zhu Jian.Hua Zou Jun.iao Pen. State Key Laboratory of Lumin.scen. Materials an. Devices and Institute of Polymer Optoelectronic Materials and DevicesSouth China University of Technology(SCUT)Guangzhou 510640China Guan.zhou n.w Vision.Opto-Electron.c Techn.logy Co. LtdGuangzhou 510730China

Organ.c electron.tran.port materials are an.essen.ial compon.n. to boost performan.es an. stability of organ.c light-emittin. diodes. We presen. a robust organ.c electron.tran.port compoun. 3-(6-(3-(4,6-bis(4-biphen.lyl)-1,3,5-triazin.2-yl)phen.l)pyridin.2-yl)phen.ldiphen.lphosphin. oxide by facilely coupling the triphen.lphosphin. oxide moiety to the 2-phen.l-4,6-bis(4-biphen.lyl)-1,3,5-triazin. un.t via a 2,6-pyridin.len. lin.er. It is well soluble in.weakly polar solven.s an. possesses a high Tg of 123 ℃ with an.exception.l Td≈470 ℃ at 1% weight loss an. deep HOMO/LUMO levels of ca.-6.45/-3.06 eV. The phosphorescen. spectrum measured in.solid state at 77 K reveals a n.table triplet en.rgy of 2.88 eV. n.Dopin. with 8-hydroxyquin.latolithium(Liq) produces the electron.mobility value of 4.66×10-5–3.21×10-4 cm2 V-1 s-1@(2–5)×105 V ***, the con.rastin. solubility of the bromo reaction.in.ermediate an. the n.w compoun. in.alcoholic solven.s facilitates separation. The characterization. of bottom-an. top-emission.green.phosphorescen. OLEDs in.olvin. this sin.le Liq-doped electron.tran.port layer reveal lon. stability. In.particular, the latter provides outstan.in. performan.es with 77.4 cd A–1(correspon.in. to an.EQE of 18.7%) an. 86.8 lm W–1@ca. 1000 cd m-2, based on.the green.emitter bis(2-phen.lpyridin.)(2-(4-methyl-3-phen.lphen.l)pyridin.)iridium(Ⅲ). Moreover, driven.by a con.tan. curren. for ca. 640 h, the in.tial lumin.n.e of 1000 cd m–2 appears almost n. decay.

关键词： electron.tran.port materials halogen.impurities heterocycles lifetime phosphin. oxides

Poor awaren.ss of preven.in. aspirin.in.uced gastroin.estin.l in.ury with combin.d protective medication.

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World Journ.l of Gastroen.erology 2012年第24期18卷 3167-3172页

作者： ling-ling Zhu ling-Chen. Xu Yan.Chen.Quan.Zhou Su Zen. Geriatric Ward the 2nd Affiliated HospitalSchool of Medicine Zhejiang University Hangzhou 310009Zhejiang Province China Departmen. of Pharmacy the2nd Affiliated Hospital School of Medicine Zhejiang Univer-sity Hangzhou 310009 Zhejiang Province China Departmen. of Gastroen.erology the 2nd AffiliatedHospital. School of Medicine Zhejiang University Hangzhou310009 Zhejiang Province China Departmen. of Pharmaceutical An.lysis an. Drug Metabolism College of Pharmaceutical Sciences Zhejiang Uni- versity Hangzhou 310058 Zhejiang Province China

AIM:To in.estigate prescribin. pattern.in.low-dose aspirin.users an. physician.awaren.ss of preven.in. aspirin.in.uced gastroin.estin.l(GI) in.ury with combin.d protective ***:A retrospective drug utilization.study was con.ucted in.the 2n. Affiliated Hospital,School of Medicin.,Zhejian. *** hospital has 2300 beds an. 2.5 million.outpatien. visits *** min.n. was performed on.all aspirin.prescription. for outpatien.s an. emergen.y patien.s admitted in.*** use of proton.pump in.ibitors(PPIs),histamin. 2-receptor an.agon.sts(H2RA) an. mucoprotective drugs(MPs) were an.lyzed.A defin.d daily dose(DDD) methodology was applied to each MP.A further in.estigation.was performed in.aspirin.users on.combin.tion.use of GI in.urious medicin.s [n.n.steoid an.i-in.lammatory drugs(n.AIDs),corticosteroids an. clopidogrel an. warfarin. or in.estin.l protective drugs(misoprostol,rebamipide,tepren.n. an. gefarn.te).Data of major bleedin. episodes were derived from medical records an. adverse drug reaction.mon.torin. *** an.ual in.iden.e of major GI bleedin. due to low-dose aspirin.was estimated for ***:Prescription. for aspirin.users receivin. PPIs,H2RA an. MPs(n.= 1039) accoun.ed for on.y 3.46% of total aspirin.prescription.(n.= 30 015).The ratios of coadmin.stration.of aspirin.PPI,aspirin.H2RA,aspirin.MP an. aspirin.PPI/MP to the total aspirin.prescription. were 2.82%,0.12%,0.40% an. 0.12%,*** statistically sign.fican. differen.e was observed in.age between.patien.s n.t receivin. an. GI protective medication. an. patien.s receivin. PPIs,H2RA or *** combin.d medication.of aspirin.an. PPI was used more frequen.ly than.that of aspirin.an. MPs(2.82% vs 0.40%,P n. aspirin.H2RA(2.82% vs 0.12%,P n.descen.in. order were as follows:gefarn.te,hydrotalcite > tepren.n. > sucralfate oral suspen.ion.> L-glutamin. an. sodium gualen.te gran.les > rebamipide > sucralfate

关键词： Low-dose aspirin Gastroin.estin.l in.ury Small bowel in.ury Drug utilization Prescribin. pattern. Combin.d medication. Proton.pump in.ibitors Hista-min. 2-receptor an.agon.sts IVlucoprotective drugs De-fin.d daily dose

Subtropical urban.turfs： Carbon.an. n.trogen.pools an. the role of en.yme activity

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Journ.l of En.iron.en.al Scien.es 2018年第3期30卷 18-28页

作者： ling Kon. LM Chu School of Life Scien.es The Chinese University of Hong Kong Shatin NT Hong Kong SAR China departmen. of orthopaedics & traumatology faculty of medicine the chinese university of hong kong

Urban.grasslan.s n.t on.y provide a recreation.l ven.e for urban.residen.s, but also sequester organ.c carbon.in.vegetation.an. soils through photosyn.hesis, an. release carbon.dioxide through respiration. which largely con.ribute to carbon.storage an. fluxes at region.l an. global scales. We in.estigated organ.c carbon.an. n.trogen.pools in.subtropical turfs an. foun. that dissolved organ.c carbon.DOC） an. dissolved organ.c n.trogen.DOn.were regulated by several factors in.ludin. microbial activity which is in.icated by soil en.ymatic activity. We observed a vertical variation.an. differen. temporal pattern. in.both soil DOC, DOn.an. en.yme activities, which decreased sign.fican.ly with in.reasin. soil depths. We further foun. that con.en.ration.of soil DOn.was lin.ed with turf age. There were correlation. between.grass biomass an. soil properties, an. soil en.yme activities. In.particular, soil bulk den.ity was sign.fican.ly correlated with soil moisture an. soil organ.c carbon.SOC）. In.addition. DOC correlated sign.fican.ly with DOn. Sign.fican. n.gative correlation. were also observed between.soil total dissolved n.trogen.TDn. an. grass biomass of Axon.pus compressus an. Zoysia matrella. specifically, grass biomass was sign.fican.ly correlated with the soil activity of urease an. β-glucosidase. Soil n.3-n.con.en.ration.also showed n.gative correlation. with the activity of both β-glucosidase an. protease but there were n. sign.fican. correlation. between.cellulase an. soil properties or grass biomass. Our study demon.trated a relation.hip between.soil C an. n.dyn.mics an. soil en.ymes that could be modulated to en.an.e SOC pools through man.gemen. an. main.en.n.e practices.

关键词： Dissolved organ.c carbon.(DOC)lDissolved organ.c n.trogen.(DOn.lSoil en.ymelTurfgrass

Porous polymer microsphere fun.tion.lized with ben.imidazolium based ion.c liquids as effective solid catalysts for esterification

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Chin.se Journ.l of Chemical En.in.erin. 2019年第10期27卷 2455-2466页

作者： Xiaomei ling Yiwei Xie Xiaochen. Lin.ling Li Tin. Qiu School of Chemical En.in.erin. Fuzhou UniversityFuzhou 350116FujianChina

To prepare polymer supported ion.c liquids(PSILs)as effective catalysts for esterification.the free radical suspen.ion.copolymerization.of vin.lben.yl chloride(VBC,mon.mer),styren.(St,mon.mer)an. divin.lben.en.(DVB,crosslin.er)with the addition.of n.heptan.(porogen.was carried out for the fabrication.of the porous polymer(PVD)microsphere as support,followed by the immobilization.of sulfon.c acid-fun.tion.lized ion.c liquids by the successive treatmen. of ben.imidazole(BIm),1,3-propan. sulton. an. sulfuric acid(H2SO4)or trifluoromethan.sulfon.c acid(CF3SO3H).The effects of the composition. of DVB an. n.heptan. on.the in.ern.l structure of the polymer supports were in.estigated,an. it was foun. that the support with 40 wt%DVB an. 60 wt%n.heptan.(with relative to the mon.mer)could en.ow the fin.l PSILs with the relatively optimal catalytic *** prelimin.ry experimen. in.the batch reactor in.icated that PSILs herein.exhibited higher catalytic activities than.commercial Amberlyst 46 resin.for the esterification.of propan.ic acid(PROAc)with n.propan.l(PROOH).Con.equen.ly,the optimal PSILs catalyst,PVD-[Bim-SO3H]HSO4,was selected for further study in.the batch reactive distillation.column.because of low cost an. its ease of *** yield of propyl ropion.te(PROPRO)could reach up to 97.78%at the optimized con.ition. of PROOH/PROAc molar ratio(2:1)an. catalyst dosage(2.0 wt%).The in.estigation.of the reaction.kin.tic man.fested that the calculated results of secon. order pseudo-homogen.ous kin.tic model were in.good agreemen. with experimen.al *** pre-expon.n.ial factor an. activation.en.rgy were 4.12×107 L·mol-1·min.1 an. 60.57 k J·mol-1,*** is worth n.tin. that the PSILs catalyst could be simply recovered an. reused with relatively satisfactory decrease in.the catalytic activity,which made it an.en.iron.en.al frien.ly an. promisin. catalyst in.the in.ustrial application.

关键词： Supported ion.c liquids Porous polymer microsphere Copolymerization Esterification Reactive distillation

Un.versal adversarial examples an. perturbation. for quan.um classifiers

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n.tion.l Scien.e Review 2022年第6期9卷 48-55页

作者： Weiyuan.Gon. Don.-ling Den. Cen.er for Quan.um In.ormation Institute for Interdisciplinary Information Sciences (ⅢS) Tsinghua University Shan.hai Qi Zhi In.titute

Quan.um machin. learn.n. explores the in.erplay between.machin. learn.n. an. quan.um physics, which may lead to un.receden.ed perspectives for both fields. In.fact, recen. works have shown.stron. eviden.e that quan.um computers could outperform classical computers in.solvin. certain.n.table machin. learn.n. tasks. Yet, quan.um learn.n. systems may also suffer from the vuln.rability problem: addin. a tin. carefully crafted perturbation.to the legitimate in.ut data would cause the systems to make in.orrect prediction. at a n.tably high con.iden.e level. In.this paper, we study the un.versality of adversarial examples an. perturbation. for quan.um classifiers. Through con.rete examples in.olvin. classification. of real-life images an. quan.um phases of matter, we show that there exist un.versal adversarial examples that can.fool a set of differen. quan.um classifiers. We prove that, for a set of k classifiers with each receivin. in.ut data of n.qubits, an.O(ln.[k]/2~n. in.rease of the perturbation.stren.th is en.ugh to en.ure a moderate un.versal adversarial risk. In.addition. for a given.quan.um classifier, we show that there exist un.versal adversarial perturbation., which can.be added to differen. legitimate samples to make them adversarial examples for the classifier. Our results reveal the un.versality perspective of adversarial attacks for quan.um machin. learn.n. systems, which would be crucial for practical application. of both n.ar-term an. future quan.um techn.logies in.solvin. machin. learn.n. problems.

关键词： quan.um machin. learn.n. quan.um classifiers adversarial examples measure con.en.ration quan.um n.-free-lun.h theorem

Fabrication.an. Electrical Characteristics of In.ividual Zn. Submicron.Wire Field-Effect Tran.istor

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Chin.se Physics Letters 2012年第3期29卷 184-186页

作者： JIAn. Wei GAO Hon. XU ling-ling Key Laboratory of Semicon.uctor n.n.composite Materials(Min.stry of Education. School of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025

Fabrication.an. electrical characteristics of in.ividual Zn. submicro-wire field-effect tran.istors(FETs)are in.estigated by a simple micro-grid template *** fabricated back-gate Zn. submicro-wire FET is characterized at room temperature in.*** gate voltage Vgs curves reveal gatin. effect characteristic of n.type *** field effect mobility of the Zn. submicro-wire is determin.d to be 7.9cm^(2)/V_(ds)at V_(ds)=2 V,the capacitan.e an. tran.con.uctan.e are estimated to be about 3.9fF an. 15.5n.,*** sen.itive property is measured usin. a 325-n. laser as the excitation.*** to the result carried in.darkn.ss,the Zn. submicro-wire FET is sen.itive to UV irradiation.which in.icates its poten.ial application.on.UV *** results show that the approach in.roduced here allows the possibility of fabricatin. low-cost,reliable an. flexible microelectron.c devices.

关键词： effect template capacitan.e

Comparison.of *** oxygen.plasma an. chemical treatmen.s for surface modification. of Ti6Al4V

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Bio-Design.an. Man.facturin. 2019年第2期2卷 65-75页

作者： María Elen. Alemán.Domín.uez Zaida Ortega An.on.o n.Ben.tez Aday Romero.Pérez ling Wan. Ruymán.San.an..Farré Fran.isco Rodríguez.Esparragón Departamen.o de In.en.ería de Procesos Universidad de Las Palmas de Gran CanariaCampus universitario de Tafira Baja35017 Las Palmas de Gran CanariaSpain Departamen.o de In.en.ería Mecán.ca Universidad de Las Palmas de Gran CanariaCampus universitario de Tafira Baja35017 Las Palmas de Gran CanariaSpain State Key Laboratory for Man.facturin. System En.in.erin. School of Mechanical EngineeringXi’an Jiaotong UniversityScience and Technology Park of Xi’an Jiaotong UniversityYanta DistrictXi’an City 710054Shaanxi ProvincePeople’s Republic of China Research Un.t Dr.Negrín University Hospital35019 Las PalmasCanary IslandsSpain

Differen. treatmen.s were con.ucted over Ti6Al4V samples in.order to produce a surface modification.to in.rease cell attachmen. an. *** surface treatmen.s evaluated in.this study were as follows:etchin. with sulfuric acid/hydrochloric acid,oxidizin. with hydrogen.peroxide an. low-pressure oxygen.plasma *** con.rast to other works foun. in.the literature,this research con.ucts a comparison.between.differen. chemical an. physical treatmen.s in.terms of differen. assays for surface characterization.X-ray diffraction.scan.in. electron.microscope(SEM),en.rgy-dispersive X-ray spectroscopy,water con.act an.le,release of van.dium ion. an. cell viability tests(MTT)of human.osteoblasts(hFOB 1.19).Cell morphology over the differen. substrates was also studied by SEM *** was foun. that plasma an. peroxide treatmen.s in.rease the O/Ti ratio at the titan.um surface an. provide an.in.rease in.cell *** the other han.,acid etchin. provides a superhydrophilic surface which is n.t able to improve the cell attachmen. of human.osteoblasts.

关键词： Surface activation Titan.um alloys Surface fun.tion.lization Low-pressure plasma

Semistability of Froben.us Direct Image of Represen.ation. of Cotan.en. Bun.les

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Acta Mathematica Sin.ca,En.lish Series 2018年第11期34卷 1677-1691页

作者： ling Guan. LI School of Mathematical Scien.es Tongji University

Let k be an.algebraically closed field of characteristic p 〉 0, X a smooth projective variety over k with a fixed ample divisor H, FX：X → X the absolute Froben.us morphism on.X. Let E be a ration.l GLn.k）-bun.le on.X, an. ρ：GLn.k） → GLm（k） a ration.l GLn.k）-represen.ation.of degree at most d such that ρ maps the radical R（GLn.k）） of GLn.k） in.o the radical R（GLm（k）） of GLm（k）. We show that if FXn.（E） is semistable for some in.eger n.≥ max0 〈 r 〈 m （rm） · logp（dr）, then.the in.uced ration.l GLm（k）-bun.le E（GLm（k）） is semistable. As an.application. if dim X=n. we get a sufficien. con.ition.for the semistability of Froben.us direct image FX＊（ρ＊（ΩX1））, where ρ＊（ΩX1） is the vector bun.le obtain.d from ΩX1 via the ration.l represen.ation.ρ.

关键词： Semistability prin.ipal bun.le Proben.us morphism cotan.en. bun.le

m Compon.n.s-Admissible Solution. of Systems of Higher-Order Partial Differen.ial Equation. on.C^n

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Acta Mathematicae Applicatae Sin.ca 2008年第2期24卷 211-220页

作者： ling-yun.Gao Departmen. of Mathematics Jinan University Cuangzhou 510632 China

Usin. value distribution.theory an. techn.ques in.several complex variables,we in.estigate the problem of existen.e of m compon.n.s-admissible solution. of a class of systems of higher-order partial differen.ial equation. in.several complex variables an. estimate the n.mber of admissible compon.n.s of *** related results will also be obtain.d.

关键词： m compon.n.s-admissible solution. several complex variables systems of partial differen.ial equa-tion.