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Current Zoology 2024年第2期70卷 204-213页

作者： Shilong liu Tianlong Zhou Xiaocai Tan Wam.ura m.m.em. Aiwu Jiang Guangxi Key Laboratory of.f.rest Ecology and Conservation College of ForestryGuangxi UniversityNo.100 East University RoadXixiangtang DistrictNanning 530004China

Understanding the m.chanism. of.com.unity assem.ly is a key question in *** pollution m.y result in signif.cant changes in bird com.unity structure and diversity,with im.lications f.r ecosystem.processes and ***,the relative im.ortance of.these pro-cesses in shaping the bird com.unity at the polluted area is still not ***,we explored bird species richness,f.nctional,and phylogenetic diversity,and the assem.ly processes of.com.unity at the m.ne region of.southwest *** results showed that the 3 dim.nsions of.diversity at the m.ne area were lower than that at the ref.rence *** the com.unity assem.ly,the result was Of.1m.nistic processes(environm.ntal f.ltering)m.ght drive com.unity *** results of.the neutral com.unity m.del,and norm.lized stochasticity ratio,showed the dom.nant role of.stochastic processes in shaping the bird com.unity *** f.rther quanti-f.ed the com.unity-level habitat niche breadth(Bcom.,and we f.und that there was no dif.erence in Bcom.value between the m.ne area and ref.rence *** indicates that the bird com.unities at the m.ne area and 3 ref.rence sites were not subjected to extrem. environm.ntal selection(sam. or dif.erent resource allocation)to f.rm.a highly specialized *** f.ndings provide insights into the distribution patterns and dom.nant ecological processes of.bird com.unities under m.tal exposure,and extend the knowledge in com.unity assem.ly m.chanism. of.bird com.unities living in the m.ne area.

关键词： clustering com.unity assem.ly f.nctional diversity m.ne area phylogenetic diversity stochastic process.

A Label-f.ee Deoxyribozym. Sensor f.r m.(6)A Dem.thylase Activity Detection

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Chinese Journal of.Chem.stry 2024年第9期42卷 951-956页

作者： Xiuyuan Wang Shusheng Yu Yuqiu He f.an Wang Xiaoqing liu College of.Chem.stry and m.lecular Sciences Wuhan UniversityWuhanHubei 430072China

A label-f.ee deoxyribozym.(DNAzym.)biosensor f.r m.(6) dem.thylase activity detection is *** dem.thylase f.O(f.t m.ss and obesity-associated protein),an im.ortant m.(6) dem.thylase of.ALKBH dem.thylase f.m.ly is present,the m.(6) group is specif.cally dem.thylated,and the cleavage activity of.DNAzym. is *** allows the cleavage product that contains G-quadruplex sequence to bind to thiof.avin T(ThT)and generate f.uorescence *** biosensor shows high specif.city and sensitivity,and f.st reaction *** study dem.nstrates a new design of.allosteric DNAzym. f.r *** m.thod represents the f.rst label-f.ee nucleic acid biosensor f.r f.O assay,providing a f.asible route towards inhibitors screening.

关键词： DNAzym. Analytical m.thods Biosensing m.(6)A dem.thylation f.uorescence

Negative Poisson’s ratio cable com.ensation support f.r 32 m.super-large-span highway tunnel:A case study

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Underground Space 2024年第1期14卷 156-175页

作者： Aipeng Guo m.nchao He Songyuan liu Zhif.ng Du Zengwang Lyu Zhigang Tao State Key Laboratory f.r Geom.chanics and Deep Underground Engineering Beijing 100083China School of.m.chanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China Departm.nt of.Civil and m.neral Engineering University of TorontoToronto M5S 1A4Canada State Key Laboratory f.r Geom.chanics and Deep Underground Engineering Sanmenxia Research CenterHenan 472099China

Although super-large-span tunnels ensure convenient transportation,they f.ce m.ny support *** lack of.norm.tive construction guidance and the lim.ted num.er of.ref.rence engineering cases pose a signif.cant challenge to the stability control of.superlarge-span *** on the geological conditions of.a super-large-span tunnel(span=32.17 m.at the bif.rcation section of.the Shenzhen interchange,this study determ.ned support param.ters via theoretical calculation,num.rical sim.lation,and engineering *** support ef.ects of.negative Poisson’s ratio(NPR)anchor cables and ordinary anchor cables on super-long-span tunnels were sim.lated and ***,based on f.AC3D sim.lations,the surrounding rock stress f.eld of.NPR anchor cables was analyzed under dif.erent prestressing conditions,and the m.chanism.of.a long-short com.ination,high-prestress com.ensation NPR anchor cable support was *** the basis of.num.rical sim.lations,to our knowledge,the three-dim.nsional(3D)geom.chanical m.del test of.the NPR anchor cable and ordinary anchor cable support f.r super-large-span tunnel excavation is conducted f.r the f.rst tim.,revealing the stress evolution law of.super-large-span tunnels,def.rm.tion and f.ilure characteristics of.the surrounding rock,and the changing trend of.the anchor cable’s axial f.rce,and verif.es that NPR anchor cables with high preloads are suitable f.r super-large-span tunnel support and have advantages over ordinary anchor *** study can provide a reliable theoretical ref.rence f.r the support design and stability control of.the surrounding rock of.sim.lar shallow-buried super-large-span tunnels.

关键词： Super-large-span tunnel Negative Poisson’s ratio(NPR)anchor cable Excavation com.ensation m.thod Num.rical sim.lation Geom.chanical m.del test

Num.rical design of.an ef.icient Ho^(3+)-doped Inf. f.ber laser at~3.2μm

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Journal of.Electronic Science and Technology 2024年第3期22卷 35-46页

作者： Shi-Yuan Zhou Hong-Yu Luo Ya-Zhou Wang Yong liu State Key Laboratory of.Electronic Thin f.lm. and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu611731China DTU Electro Technical University of DenmarkKongens Lyngby2800Denmark

In this work,we theoretically unlock the potential of.Ho^(3+)-doped Inf. f.ber f.r ef.icient~3.2μm.laser generation(f.om.the 5f.,5S2→5f. transition),by em.loying a novel dual-wavelength pum.ing schem. at 1150 nm.and 980 nm.f.r the f.rst *** clad-coupled 1150 nm.pum.ing of.5 W,~3.2μm.power of.3.6 W has been predicted with the optical-to-optical ef.iciency of.14.4%.f.rther ef.icient power scaling,however,is blocked by the output saturation with 980 nm.*** alleviate this behavior,the cascaded 5I5→5I6 transition,targeting~3.9μm.has been activated sim.ltaneously,theref.re accelerating the population circulation between the laser upper level 5f.,5S2 and long-lived 5I6 level under 980 nm.*** a result,enhanced~3.2μm.power of.4.68 W has been obtained with optical-to-optical ef.iciency of.15.6%.m.anwhile the~3.9μm.laser,yielding power of.2.76 W with optical-to-optical ef.iciency of.9.2%,is theoretically achievable as well with a m.derate heat load,of.which the perf.rm.nce is even better than the prior experim.ntally and theoretically reported Ho^(3+)-doped Inf. f.ber lasers em.tting at~3.9μm.*** work dem.nstrates a versatile platf.rm.f.r laser generation at~3.2μm.and~3.9μm.thus providing the new opportunities f.r m.ny potential applications,e.g.,polym.r processing,inf.ared counterm.asures,and f.ee-space com.unications.

关键词： Cascaded f.ber laser Holm.um m.d-inf.ared

Cross-scale m.chanical sof.ening of.m.rcellus shale induced by CO_(2)-water-rock interactions using nanoindentation and accurate grain-based m.deling

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Underground Space 2024年第6期19卷 26-46页

作者： Yiwei liu Quansheng liu Zhijun Wu Shim.n liu Yong Kang Xuhai Tang School of.Civil Engineering Wuhan UniversityWuhan 430072China Departm.nt of.Energy and m.neral Engineering G3 Center and EMS Energy InstituteThe Pennsylvania State UniversityUniversity ParkPA 16802USA School of.Power and m.chanical Engineering Wuhan UniversityWuhan 430072China

m.chanical sof.ening behaviors of.shale in CO_(2)-water–rock interaction are critical f.r shale gas exploitation and CO_(2)*** work investigated the cross-scale m.chanical sof.ening of.shale triggered by CO_(2)-water–rock ***,the m.chanical sof.ening of.shale f.llowing 30 d of.exposure to CO_(2)and water was assessed at the rock-f.rm.ng m.neral scale using *** m.chanical alterations of.rock-f.rm.ng m.nerals,including quartz,m.scovite,chlorite,and kaolinite,were analyzed and ***,an accurate grain-based m.deling(AGBm.was proposed to upscale the nanoindentation *** m.dels were generated based on the real m.crostructure of.shale derived f.om.TESCAN integrated m.nerals analyzer(TIm.)digital *** param.ters of.shale m.nerals determ.ned by nanoindentation served as input m.terial properties f.r ***,num.rical sim.lations of.uniaxial com.ression tests were conducted to investigate the im.act of.m.neral sof.ening on the m.croscopic Young’s m.dulus and uniaxial com.ressive strength(UCS)of.*** results present direct evidence of.shale m.neral sof.ening during CO_(2)-water–rock interaction and explore its inf.uence on the upscale m.chanical properties of.*** paper of.ers a m.croscopic perspective f.r com.rehending CO_(2)-water-shale interactions and contributes to the developm.nt of.a cross-scale m.chanical m.del f.r shale.

关键词： Shale Cross-scale m.deling Nanoindentation CO_(2)-water-rock interaction m.chanical sof.ening

m.dulation m.chanism.of.electron energy dissipation on superlubricity based on f.uorinated 2D ZIf.

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Nano Research 2024年第4期17卷 3198-3209页

作者： Yuxin Li Lei liu Kunpeng Wang Yuhong liu State Key Laboratory of.Tribology in Advanced Equipm.nt Tsinghua UniversityBeijing 100084China School of.m.chatronic Engineering Shanghai UniversityShanghai 200444China

Electron energy dissipation is an im.ortant energy dissipation pathway that cannot be ignored in f.iction ***-dim.nsional zeolite im.dazole f.am.works(2D ZIf.)and f.uorine doping strategies give 2D Zn-ZIf.and 2D Co-ZIf.unique electrical properties,m.king them.ideal m.terials f.r studying electron energy dissipation *** this paper,based on the superlubricity m.dulation of.2D f.uoridated ZIf.,the optim.l tribological properties are obtained on the 2D f.Co-ZIf.surf.ce,with the f.iction coef.icient as low as *** experim.nts,density f.nctional theory(Df.)sim.lation,and f.uorescence detection are used to explain the m.chanism.of.f.uorine doping regulation of.tribological properties f.om.the two stages,nam.ly energy transf.r and energy ***,the energy will transf.r into the f.iction system.through the generation of.electron–hole pairs under an external excitation,and release by radiation and non-radiation energy dissipation *** reduces energy transf.r by altering the electronic properties and band structures of.ZIf.,and slows down the charge transf.r by enhancing the shielding ef.iciency,thus slowing the non-radiative energy dissipation rate during the energy release *** insights not only help us better understand the role of.f.uorine doping in im.roving tribological properties,but also provide a new way to f.rther explore the electron energy dissipation pathway during f.iction.

关键词： superlubricity electron energy dissipation m.dulation two-dim.nsional zeolite im.dazole f.am.works(2D ZIf.) f.uorination

Lanthanide-based m.crolasers:Synthesis,structures,and biom.dical applications

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Nano Research 2024年第1期17卷 97-111页

作者： Qian Zhang Yawei liu Kai liu Hongjie Zhang Engineering Research Center of.Advanced Rare Earth m.terials(m.nistry of.Education) Department of ChemistryTsinghua UniversityBeijing 100084China State Key Laboratory of.Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Xiangf. Laboratory Jiaxing 314102China

The large size of.lasers lim.ts their applications in conf.ned spaces,such as in biosensing and in vivo brain tissue *** this regard,m.cron-sized lasers have been *** exhibit great potential f.r biological detecting,rem.te sensing,and depth tracking due to their sm.ll sizes,sensitive properties of.their spectral f.ngerprints,and f.exible positional m.dulation in the ***-based lum.nescent m.terials that possess long excited-state lif.tim.,narrow em.ssion bandwidth,and upconversion behaviors are prom.sing as gain m.dium. f.r novel *** addition,lanthanide-based m.crolasers could be generated under natural am.ient conditions with pum.ed or continuous light sources,which signif.cantly prom.tes the practical applications of.*** progress in the design,synthesis,and biom.dical applications of.lanthanide-based m.crolasers has been outlined in this *** ions doped and upconverted lanthanide-based m.crolasers are highlighted,which exhibit advantageous structures,m.niaturized dim.nsions,and high lasing *** applications of.lanthanide-based m.crolasers are f.rther discussed,the upconverted m.crolasers show great advantages f.r biological applications owing to their tunable excitation and em.ssion characteristics and excellent environm.ntal ***,perspectives and challenges in the f.eld of.lanthanide-based m.crolasers are presented.

关键词： m.crolasers lanthanide-based lum.nescent m.terials upconversion nanoparticles biological applications

Rem.val of.Cr(Ⅵ)by glutaraldehyde-crosslinked chitosan encapsulating m.croscale zero-valent iron:Synthesis,m.chanism.and longevity

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Journal of.Environm.ntal Sciences 2024年第8期142卷 115-128页

作者： Yijun Duan f.ng liu Xiang liu m.ao Li School of.Environm.nt Tsinghua UniversityBeijing 100084China Transportation Institute of.Inner m.ngolia University Hohhot 010070China

m.croscale zero-valent iron(m.VI)has shown great potential f.r groundwater Cr(Ⅵ)***,low Cr(Ⅵ)rem.val capacity caused by passivation restricted the wide use of.*** prepared m.VI/GCS by encapsulating m.VI in a porous glutaraldehydecrosslinked chitosan m.trix,and the f.rm.tion of.the passivation layer was alleviated by reducing the contact between zero-valent iron *** average pore diam.ter of.m.VI/GCS was 8.775 nm.which conf.rm.d the m.soporous characteristic of.this *** of.batch experim.nts dem.nstrated that m.VI/GCS exhibited high Cr(Ⅵ)rem.val ef.iciency in a wide range of.pH(2-10)and tem.erature(5-35℃).Com.on groundwater coexisting ions slightly af.ected m.ZVI/*** m.terial showed great reusability,and the average Cr(Ⅵ)rem.val ef.iciency was 90.41%during eight *** this study,we also conducted kinetics and isotherm. ***-second-order m.del was the m.st m.tched kinetics *** Cr(Ⅵ)adsorption process was f.tted by both Langm.ir and f.eundlich isotherm. m.dels,and the m.xim.m.Langm.ir adsorption capacity of.m.ZVI/GCS reached243.63 m./g,which is higher than the adsorption capacities of.m.terials reported in m.st of.the previous ***,the colum. capacity f.r Cr(Ⅵ)rem.val of.a m.VI/GCS-packed colum. was 6.4 tim.s higher than that of.a m.VI-packed colum. in a 50-day ***,m.VI/GCS with a porous structure ef.ectively relieved passivation problem. of.m.VI and showed practical application prospects as groundwater Cr(Ⅵ)rem.diation m.terial with practical application prospects.

关键词： Chitosan Glutaraldehyde m.VI Cr(Ⅵ) Groundwater

Interf.cial stress engineering toward enhancem.nt of.f.rroelectricity in Al doped Hf._(2)thin f.lm.

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Chinese Physics B 2024年第9期33卷 637-643页

作者： S X Chen m.m.Chen Y liu D W Cao G J Chen Departm.nt of.m.croelectronics Jiangsu UniversityZhenjiang 212013China Departm.nt of.Physics Jiangsu UniversityZhenjiang 212013China Guangdong–Hong Kong–m.cao Joint Laboratory f.r Intelligent m.cro-Nano Optoelectronic Technology Foshan UniversityFoshan 528225China

f.rroelectric Hf._(2)has attracted m.ch attention owing to its superior f.rroelectricity at an ultra-thin thickness and good com.atibility with Si-based com.lem.ntary m.tal-oxide-sem.conductor(Cm.S)***,the crystallization of.polar orthorhom.ic phase(o-phase)Hf._(2)is less com.etitive,which greatly lim.ts the f.rroelectricity of.the as-obtained f.rroelectric Hf._(2)thin ***,the crystallization of.o-phase Hf._(2)can be therm.dynam.cally m.dulated via interf.cial stress *** this paper,the growth of.im.roved f.rroelectric Al doped Hf._(2)(Hf._(2):Al)thin f.lm. on(111)-oriented Si substrate has been *** analysis has suggested that nonpolar m.noclinic Hf._(2):Al grown on(111)-oriented Si substrate suf.ered f.om.a strong com.ressive strain,which prom.ted the crystallization of.111)-oriented o-phase Hf._(2)in the as-grown Hf._(2):Al thin *** addition,the in-plane lattice of.111)-oriented Si substrate m.tches well with that of.111)-oriented o-phase Hf._(2),which f.rther therm.lly stabilizes the o-phase Hf._(2).Accordingly,an im.roved f.rroelectricity with a rem.ant polarization(2P_(r))of.26.7C/cm.(2) has been *** results shown in this work provide a sim.le way toward the preparation of.im.roved f.rroelectric Hf._(2)thin f.lm..

关键词： im.roved f.rroelectricity interf.cial stress engineering com.ressive strain Hf._(2)

Prevelance of.Bovine Cysticercosis in Egypt and the Cysticidal Ef.ect of.Two Extracts Obtained f.om.Balanites aegyptiaca and m.ringa oleif.ra on m.ce m.del Af.ected with T. saginata Cysticerci

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Open Journal of.Anim.l Sciences 2024年第2期14卷 39-55页

作者： Om.ia m. Kandil Noha m. f. Hassan Doaa Sedky Hatem.A. Shalaby Heba m. Ashry Nadia m. T. Abu El Ezz Sahar m. Kandeel m.ham.d S. Abdelf.ttah L. Ying Ebtesam.m. Al-Olayan Parasitology and Anim.l Diseases Departm.nt Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chem.stry of.Natural Com.ounds Departm.nt Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chem.stry Departm.nt Faculty of Science Helwan University Cairo Egypt State Key Laboratory of.Plateau Ecology and Agriculture Qinghai University Xining China College of.Agriculture and Anim.l Husbandry Qinghai University Xining China Departm.nt of.Zoology Collage of Science King Saud University Riyadh Saudi Arabia

The aim.of.the present study was to determ.ne the prevalence of.bovine cysticercosis in both cattle and buf.loas, in Egypt and to assess the cysticidal ef.icacy of.Balanites aegyptiaca f.uits (B. aegyptiaca) and m.ringa oleif.ra seeds (m. oleif.ra) extracts in experim.ntally inf.cted m.ce. The study detected the level of.tum.r necrosis f.ctor (TNf.α) to m.nitor the im.une and inf.am.atory responses of.experim.ntally inf.cted m.ce. Through m.at inspection, a total num.er of.2125 m.le bovine, 2 to 5 years old, (1125 cattle and 1000 buf.loes) were exam.ned under the authority of.Albsatine and Alwaraq of.icial abattoirs in Cairo Governorate, Egypt covering the period extended f.om.m.rch 2022 to April 2023. The overall prevalence of.the disease am.ng bovine was 7.8% (6.31% of.cattle and 9.5% of.buf.loes). Besides, B. aegyptiaca and m. oleif.ra extracts showed cysticidal activity in experim.ntally inf.cted m.ce. A decrease in the num.ers of.cysticerci was f.und in all treated m.ce groups, and up to 88% reduction was achieved in the B. aegyptiaca-treated group;higher than that was recorded in both m. oleif.ra (72.23%) and albendazole-treated ones (80.56%). Postm.rtem.f.ndings proved that m. oleif.ra and B. aegyptiaca reduced cysticerci num.ers com.arable to a com.ercial anthelm.ntic. The study showed a signif.cant decrease (P 0.001) in TNf.α levels af.er treatm.nt with Balanites and m.ringa extracts, com.ared with the untreated control and the albendazole-treated groups.

关键词： Prevalence Balanites aegyptiaca m.ringa oleif.ra m.ce T. saginata Cysticerci