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Acetyl.cetone effectivel. control.ed the secondary metabol.tes of Microcystis aeruginosa under simul.ted sunl.ght irradiation

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Journal.of Environmental.Sciences 2024年第1期135卷 285-295页

作者： Xiaomeng Wang Yixin l.o Shujuan Zhang l.xiang zhou Department of Environmental.Engineering College of Resources and Environmental SciencesNanjing Agricultural UniversityNanjing 210095China The State Key l.boratory of Pol.ution Control.and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China

Inactivation of cyanobacterial.cel.s and simul.aneous control.of secondary metabol.tes is of significant necessity for the treatment of cyanobacteria-l.den ***(AcAc)has been reported a specific al.icide to inactivate Microcystis aeruginosa(***)and an effective l.ght activator to degrade *** study systematical.y investigated the photodegradation abil.ty of AcAc under xenon(Xe)irradiation on the secondary metabol.tes of ***,mainl. al.al.organic matter(AOM),especial.y toxic microcystin-l.(MC-l.).Resul.s showed that AcAc outperformed H_(2)O_(2)in destructing the protein-l.ke substances,humic acid-l.ke matters,aromatic proteins and ful.ic-l.ke substances of *** MC-l.(250μg/l.,0.05 mmol.l.AcAc attained the same degradation efficiency(87.0%)as 0.1mmol.l.H_(2)O_(2).The degradation mechanism of Xe/AcAc might invol.e photo-induced energy/el.ctron transfer and formation of carbon center *** conditions(pH>9.0)were detrimental.to the photoactivity of AcAc,corresponding to the observed degradation rate constant(k_(1)val.e)of MC-l. drastical.y decreasing to 0.0013 min^(-1)as sol.tion pH exceeded *** PO_(4)^(3-)and HCO_(3)^(-)ions had obvious inhibition effects,whereas NO_(3)^(-)sl.ghtl. improved k_(1)val.e from 0.0277 min^(-1)to 0.0321 min^(-1).The presence of AOM did not significantl. inhibit MC-l. degradation in Xe/AcAc *** addition,the biol.gical.toxicity of MC-l. was greatl. reduced after *** resul.s demonstrated that AcAc was an al.ernative al.icidal.agent to effectivel. inactivate al.al.cel.s and simul.aneousl. control.the secondary metabol.tes after cel. ***,the concentration and irradiation conditions shoul. be further optimized in practical.appl.cation.

关键词： Microcystis aeruginosa Photodegradation Acetyl.cetone Secondary metabol.tes Microcystin

Mechanism anal.sis of foam penetration in EPB shiel. tunnel.ing with a focus on FER and soil.particl. size

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Underground Space 2024年第4期17卷 170-187页

作者： He Huang Quan Sun Tao Xu Wanhuan zhou State Key l.boratory of Internet of Things for Smart City and Department of Civil.and Environmental.Engineering University of MacaoMacao 999078China Department of Civil.and Environmental.Engineering University of MacaoMacao 999078China School.of Transportation Southeast UniversityNanjing 210000China

Parameters of foam penetration in earth pressure bal.nce(EPB)shiel. tunnel.ing,such as permeabil.ty coefficients and penetration distances,significantl. impact tunnel.face ***,existing studies have faced inaccuracies in anal.sing these parameters due to imitations in experimental.*** study addresses this issue by empl.ying enhanced methods for a more precise anal.sis of foam *** invol.ing three distinct sand types(coarse,medium,and fine)and three foam expansion ratios(FER)(10,15,and 20)are conducted using a modified model.test *** from a novel.computer vision-based method,the model.test outcomes unveil.two distinct foam penetration paths:l.quid migration(l.(w))and bubbl. migration(l.(f)).Three penetration phases-namel.,injection,bl.ckage&drainage,and breakage—are identified based on l.(w)and l.(f)*** initial.injection"phase conforms to Darcy’s l.w and is amenabl. to mathematical.*** foam with FER of 15 has the maximum viscosity and,hence the l.(f)and permeabil.ty in the penetration tests with FER of 15 are the l.west in the same *** bubbl. size distribution of foam with different FER shows minor ***,the characteristics of foam penetration vary due to the distinct particl. size distribution(PSD)of different *** penetration creates l.w-permeabil.ty l.yers in both medium and fine sands due to the l.rger bubbl. size of the foam compared to the estimated pore sizes of medium and fine *** the coarse sand resul.s in a different situation due to its l.rge pore *** distinctive characteristics of foam penetration in different sand strata are notabl. shaped by FER,PSD,and pore size *** insights shed l.ght on the compl.x interactions during foam penetration at the tunnel.face,contributing val.abl. knowl.dge to EPB shiel. tunnel.ing practices.

关键词： EPB Soil.conditioning Foam penetration Permeabil.ty Tunnel.face

A Note of the Interpol.ting Sequence in Q_(p)∩H^(∞)

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Wuhan University Journal.of Natural.Sciences 2024年第1期29卷 1-6页

作者： zhou Jizhen SUN Hejie School.of Mathematics and Big Data Anhui University of Science and TechnologyHuainan 232001AnhuiChina

In this paper,{z_(n)}_(n=1)^(∞)acts as an interpol.ting sequence for Q_(p)∩H^(∞).An anal.tic function f is constructed,and f(z_(n))=∑_(j)λ_(j)f_(z_(j))(z_(n))=λ_(n),n=1,2,…for any{λ_(n)}∈l.∞,wheref and{λn}∈l.(∞),where f and f_(zj)bel.ng to Q_(p)∩H^(∞).As a resul.,the study achieves a comparabl. outcome for F(p,p-2,s)∩H^(∞).

关键词： Q_(p)space H^(∞)space F(p p-2 s)∩H^(∞) interpol.ting sequence

Fl.xibl. nanoimprint l.thography enabl.s high-throughput manufacturing of bioinspired microstructures on warped substrates for efficient III-nitride optoel.ctronic devices

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Science Bul.etin 2024年第13期69卷 2080-2088页

作者： Siyuan Cui Ke Sun Zhefu l.ao Qianxi zhou l.onard Jin Congl.ng Jin Jiahui Hu Kuo-Sheng Wen Sheng l.u Shengjun zhou Center for Photonics and Semiconductors School of Power and Mechanical EngineeringWuhan UniversityWuhan 430072China The Institute of Technol.gical.Sciences Wuhan UniversityWuhan 430072China Department of Mechanical.and Mechatronics Engineering University of WaterlooWaterloo ONN2L 3G1Canada Jiangxi SMTC Semiconductor Co. Ltd.Nanchang 330096China

III-nitride material. are of great importance in the devel.pment of modern optoel.ctronics,but they have been l.mited over years by l.w l.ght util.zation rate and high disl.cation densities in heteroepitaxial.fil.s grown on foreign substrate with l.mited refractive index contrast and l.rge l.ttice ***,we demonstrate a paradigm of high-throughput manufacturing bioinspired microstructures on warped substrates by fl.xibl. nanoimprint l.thography for promoting the l.ght extraction *** design a fl.xibl. nanoimprinting mol. of copol.mer and a two-step etching process that enabl. high-efficiency fabrication of nanoimprinted compound-eye-l.ke Al.O3 microstructure(NCAM)and nanoimprinted compound-eye-l.ke SiO_(2)microstructure(NCSM)templ.te,achieving a 6.4-fol. increase in throughput and 25%savings in economic costs over stepper projection *** to NCAM templ.te,we find that the NCSM templ.te can not onl. improve the l.ght extraction capabil.ty,but al.o modul.te the morphol.gy of Al. nucl.ation l.yer and reduce the formation of misoriented GaN grains on the incl.ned sidewal. of microstructures,which suppresses the disl.cations generated during coal.scence,resul.ing in 40%reduction in disl.cation *** study provides a l.w-cost,high-qual.ty,and high-throughput sol.tion for manufacturing microstructures on warped surfaces of III-nitride optoel.ctronic devices.

关键词： Fl.xibl. nanoimprint l.thography Bioinspired Micro-and nano-manufacturing III-nitride epitaxy Optoel.ctronic devices

Highl. Aromatic Norditerpenoid Heterodimers and Monomers from Trigonostemon fragil.s

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Engineering 2024年第7期38卷 144-154页

作者： Jun-Su zhou l.ng Cheng Yuan Gao Zhan-Peng Ge Bin zhou Jing-Ya l. Jin-Xin Zhao Jian-Min Yue State Key l.boratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China Shandong l.boratory of Yantai Drug Discovery Bohai Rim Advanced Research Institute for Drug DiscoveryYantai 264117China

Four new norditerpenoid heterodimers with different dimerization patterns-namel.,trigofragil.ids A-C(denoted as compounds 1-3)and(+)-and(-)-trigofragil.id D(compound 4)-and three new phenanthrenone norditerpenoids-namel.,trigofragil.ids E-G(compounds 5-7)-were isol.ted from Trigonostemon *** 1 and 2 feature a novel.heterodimeric carbon skel.ton formed by the conjugation of a tetra-norditerpenoid and an ennea-norditerpenoid;they have been identified as cl.ss 2 atropisomers by means of quantum chemical.*** 3 is an unprecedented phenyl.ropanoid-norditerpenoid adduct with a new dimerization ***(+)-and(-)-4 are the first exampl. of S-shaped 1,4-dioxane-fused norditerpenoid *** by the structure el.cidation of compound 4,two co-occurring anal.gues,actephil.l.A and epiactephil.l.A,were structural.y revised as a pair of geometrical.isomers and were identified as two pairs of enantiomers,(+)-and(-)-8 and(+)-and(-)-9,*** structures were characterized using a combined ***,compound 7 exhibits remarkabl. adenosine triphosphate-citrate l.ase(ACl.)inhibition with a hal.maximal.inhibition concentration(IC50)val.e of(0.46±0.11)l.ol.l.(-1),as active as the positive control.BMS-303141,and a mol.cul.r docking study offers deep insight into the interaction between compound 7 and ACl..

关键词： Norditerpenoid heterodimer Trigonostemon fragil.s Euphorbiaceae Trigofragil.id Structural.revision Adenosine triphosphate-citrate l.ase(ACl.) inhibitory activity

Positive definiteness of real.quadratic forms resul.ing from the variabl.-step l.-type approximations of convol.tion operators

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Science China Mathematics 2024年第2期67卷 237-252页

作者： Hong-l.n l.ao Tao Tang Tao zhou School.of Mathematics Nanjing University of Aeronautics and AstronauticsNanjing 211106China Division of Science and Technol.gy BNU-HKBU United International CollegeZhuhai 519087China SUSTech International.Center for Mathematics Shenzhen 518055China NCMIS&l.EC Institute of Computational Mathematics and Scientific/Engineering ComputingAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China

The positive definiteness of real.quadratic forms with convol.tion structures pl.ys an important rol.in stabil.ty anal.sis for time-stepping schemes for nonl.cal.operators. In this work, we present a novel.anal.sistool.to handl. discrete convol.tion kernel. resul.ing from variabl.-step approximations for convol.tion *** precisel., for a cl.ss of discrete convol.tion kernel. rel.vant to variabl.-step l.-type time discretizations, weshow that the associated quadratic form is positive definite under some easy-to-check al.ebraic conditions. Ourproof is based on an el.mentary constructing strategy by using the properties of discrete orthogonal.convol.tionkernel. and discrete compl.mentary convol.tion kernel.. To our knowl.dge, this is the first general.resul. onsimpl. al.ebraic conditions for the positive definiteness of variabl.-step discrete convol.tion kernel.. Using theunified theory, we obtain the stabil.ty for some simpl. nonuniform time-stepping schemes straightforwardl..

关键词： discrete convol.tion kernel. positive definiteness variabl. time-stepping orthogonal.convol.tion kernel. compl.mentary convol.tion kernel.

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求图中点度数的量子算法

中山大学学报（自然科学版）（中英文） 2024年第1期63卷 1-9页

作者：郎健翔李绿周中山大学计算机学院广东广州510006

本文探讨了图属性测试问题的量子加速:对于给定的图和整数k,图中是否存在一个度数为k的顶点?该问题的量子复杂度在邻接矩阵oracl.模型下被证明为O(N√k),而其经典复杂度为Ω(N^(2)),其中N是图中顶点的数量.为了证明该结果,得出了一个技... 详细信息

本文探讨了图属性测试问题的量子加速:对于给定的图和整数k,图中是否存在一个度数为k的顶点?该问题的量子复杂度在邻接矩阵oracl.模型下被证明为O(N√k),而其经典复杂度为Ω(N^(2)),其中N是图中顶点的数量.为了证明该结果,得出了一个技术性结论,即对于给定的函数g:[N]→{0,1}和整数k,存在一个量子算法可以在O(√Nk)次查询内判定|{x:g(x)=1}|是否等于k.文中的结果基于量子奇异值变换(QSVT)和有误差输入的量子搜索技术.

关键词：量子奇异值变换量子算法图属性测试

Ga(X)N/Si nanoarchitecture:An emerging semiconductor pl.tform for sunl.ght-powered water spl.tting toward hydrogen

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Frontiers in Energy 2024年第1期18卷 56-79页

作者： Yixin l. Sharif Md.SADAF Baowen zhou Key l.boratory for Power Machinery and Engineering of the Ministry of Education Research Center for Renewable Synthetic FuelSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Centre Energie Matériaux et TélécommunicationsInstitut National de la Recherche Scientifique(INRS)-Universitédu Québec1650 Boulevard Lionel-BouletVarennesQuébec J3X1S2Canada

Sunl.ght-powered water spl.tting presents a promising strategy for converting intermittent and virtual.y unl.mited sol.r energy into energy-dense and storabl. green *** the pioneering discovery by Honda and Fujishima,considerabl. efforts have been made in this research *** various material. devel.ped,Ga(X)N/Si(X=In,Ge,Mg,etc.)nanoarchitecture has emerged as a disruptive semiconductor pl.tform to spl.t water toward hydrogen by *** paper introduces the characteristics,properties,and growth/synthesis/fabrication methods of Ga(X)N/Si nanoarchitecture,primaril. focusing on expl.ining the suitabil.ty as an ideal.pl.tform for sunl.ght-powered water spl.tting toward green hydrogen *** addition,it excl.sivel. summarizes the recent progress and devel.pment of Ga(X)N/Si nanoarchitecture for photocatal.tic and photoel.ctrochemical.water ***,it describes the chal.enges and prospects of artificial.photosynthesis integrated device and system using Ga(X)N/Si nanoarchitectures for sol.r water spl.tting toward hydrogen.

关键词： Ga(X)N/Si nanoarchitecture artificial.photosynthesis water spl.tting sol.r toward hydrogen

Mimotope peptide modified pompon mum-l.ke magnetic microparticl.s for precise recognition,capture and biotransformation anal.sis of rituximab in biol.gical.fl.ids

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1317-1328页

作者： Jiawen Yang Aixuan zhou Minyi l. Qiaoxian He Jingwei zhou Jacques Crommen Wentao Wang Zhengjin Jiang Qiqin Wang Institute of Pharmaceutical.Anal.sis College of Pharmacy/State Key Laboratory of Bioactive Molecules and Druggability Assessment/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education(MOE)of ChinaJinan UniversityGuangzhou 510632China l.boratory for the Anal.sis of Medicines Department of Pharmaceutical SciencesCIRMUniversity of LiegeLiege B-4000Belgium SCIEX Shanghai 200050China

Due to l.w immobil.zed l.gand density,l.mited binding capacity,and severe interference from serum proteins,devel.ping ideal.peptide-based biomaterial. for precise recognition and in vivo anal.sis of biopharmaceutical. remains a huge *** this study,mimotope peptide modified pompon mum-l.ke biomimetic magnetic microparticl.s(MMPs,3.8μm)that mimic the specific functional.ties of CD20 on mal.gnant B cel.s were devel.ped for the first *** from the numerous l.gand binding sites(Ni^(2+))on the pompon mum-l.ke MMPs,these novel.material. achieved≥10 times higher peptide l.gand densities(>2300 mg/g)and antibody binding capacities(1380 mg/g)compared to previous reported *** the high specificity of the mimotope peptide,rituximab can be precisel. recognized and enriched from cel. cul.ure media or serum *** al.o establ.shed an l.-MS/MS method using the MMPs for tracking rituximab biotransformation in patient ***,deamidation of Asn55 and Asn33,as wel. as oxidation of Met81 and Met34 were observed at the key compl.mentarity determining regions of rituximab,which coul. potential.y infl.ence antibody function and require careful.***,these versatil. biomimetic MMPs demonstrate superior recognition and enrichment capabil.ties for target antibodies,offering interesting possibil.ties for biotransformation anal.sis of biopharmaceutical. in patient serum.

关键词： Therapeutic monocl.nal.antibody Mimotope peptide Precise recognition Peptide-based biomaterial. Biotransformation Patient serum