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High-res.lution multi-s.ale air pollution s.s.em:Evaluation of modelling performance and emis.ion control s.rategies

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Journal of Environmental s.iences 2024年第3期137卷 65-81页

作者： Diogo Lopes.Joana Ferreira s.ndra Rafael ka In Hoi Xin Li yuan Liu ka-Veng yuen kai Meng Mok Ana Is.bel Miranda Department of Environment and Planning&CEs.M University of AveiroAveiroPortugal Department of Civil&Environmental Engineering Faculty of Science and TechnologyUniversity of MacaoMacao SARChina

A high percentage of the world's.population lives.in areas.where air pollutant concentrations.exceed the World Health Organization *** work aims.to develop and tes.,a high-res.lution multi-s.ale air pollution modelling s.s.em by integrating a s.t of adequate *** s.s.em is.able to provide detailed air pollutant concentrations.in urban areas.and s.pport air quality management s.rategies.through a better identification of different atmos.heric *** als. allows.furthering the des.gn and as.es.ment of air pollution control meas.res.for a s.ecific *** evaluate its.performance and s.itability,the s.s.em was.applied to the Macao s.ecial Adminis.rative Region(s.R),China,one of the mos. dens.ly populated areas.on earth,during a winter period when this.area is.affected by high levels.of Particulate Matter(PM).Although the developed s.s.em tends.to underes.imate the PM concentrations.it revealed a good performance in reproducing the temporal and s.atial air pollution *** exceedances.of the Chines. air quality s.andards.were calculated and high population expos.re to PM pollution was.*** tes.ed urban atmos.heric emis.ion reduction s.enarios.have s.own air quality improvements.indicating that emis.ion reduction meas.res.at urban level s.ould focus.on the domes.ic ***,it is.crucial to implement joint pollution prevention s.rategies.with neighbouring regions.to improve the air quality in Macao *** approach developed in this.work can s.pport policymakers.in defining new s.rategies.to reduce atmos.heric pollution in urban areas.

关键词： Urban areas High-res.lution emis.ion inventory Particulate matter Population expos.re

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Modulation doping of p-type Cu_(12)s._(4)s.(13)toward improving thermoelectric performance

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Journal of Materials.s.ience & Technology 2024年第4期171卷 71-79页

作者： Khak Ho Lim Mingquan Li yu Zhang yue Wu Qimin Zhou Qingyue Wang Xuan yang Pingwei Liu Wen-Jun Wang ka Wai Wong ka Ming Ng yu Liu Andreu Cabot Ins.itute of Zhejiang Univers.ty-Quzhou Quzhou 324000China College of Chemical and Biological Engineering Zhejiang UniversityHangzhou 310007China s.hool of Chemis.ry and Chemical Engineering Hefei University of TechnologyHefei 230009China Materials.Res.arch Ins.itute The Pennsylvania State UniversityUniversity ParkPA 16802USA Os.ia Technologies.Limited United Kingdom Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayHong KongChina ICREA Pg.Lluis Companys 23Barcelona 08010Spain Catalonia Energy Res.arch Ins.itute-IREC Sant Adria del BesosBarcelona 08930Spain

The commercial viability of thermoelectric(TE)devices.relies.heavily on two factors.cos. reduction and efficiency *** this.s.udy,we firs. produce p-type Cu_(12)s._(4)s.(16-x)(x=0,3,4)us.ng a low-temperature bottom-up approach and demons.rate Cu_(12)s._(4)s.(13)to s.ow the bes. TE performance among the three tes.ed ***,the TE energy convers.on efficiency of Cu_(12)s._(4)s.(13)is.further enhanced by optimizing its.electronic band s.ructure through the incorporation of s.all amounts.of *** an optimal Te content of 5 mol%,more than a twofold increas. in the TE figure of merit(zT)is.*** gain ins.ght into the mechanis. of improvement on the trans.ort properties.of the mate-rial,we compare the interphas. trans.ort mechanis. by incorporating nanodomains.of different metals.Ag and Cu)into the Cu_(12)s._(4)s.(13)*** improved electrical conductivity obtained with Cu_(12)s._(4)s.(13)-Te nanocompos.tes.is.attributed to a charge flooding of the Cu_(12)s._(4)s.(13)*** contras.,exces.ive down-ward band-bending at the interphas.s.of Ag/Cu metal-s.miconductor dras.ically reduces.the electrical ***,a weighted mobility(μw)analys.s.s.ows.a dominant thermal activation of carri-ers.in Cu_(12)s._(4)s.(13)-Te *** this.material,a s.rong decreas. in lattice thermal conductivity is.als. found,which is.as.ociated with a phonon-carrier s.attering *** work s.ows.the impor-tance of proper band-engineering in TE nanocompos.tes.to decouple electrical and thermal trans.ort to enhance TE performance,and the efficacy ofμw for electrical and thermal trans.ort analys.s.

关键词： Modulation doping Thermoelectric Interphas. trans.ort Charge flooding Phonon-carrier s.attering

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s.EED:an integrated,s.artphone-operated,handheld digital PCR Device for point-of-care tes.ing

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Micros.s.ems.& Nanoengineering 2024年第3期10卷 149-158页

作者： Haoqing Zhang Xiaocheng Liu Xinlu Wang Zhiqiang yan ying Xu Martina Gaňová TomášŘezníček Marie Korabečná Pavel Neuzil Minis.ry of Education Key Laboratory of Micro and Nano s.s.ems.for Aeros.ace School of Mechanical EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’anShaanxi 710072PR China The Key Laboratory of Biomedical Information Engineering of the Minis.ry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’anShaanxi 710049PR China Bioins.ired Engineering and Biomechanics.Center(BEBC) Xi’an Jiaotong UniversityXi’an 710049PR China s.hool of Marine s.ience and Technology Northwestern Polytechnical UniversityXi’anShaanxi 710072PR China Central European Ins.itute of Technology Brno University of TechnologyPurkyňova 12361300 BrnoCzech Republic ITD Tech s.R.O Osvoboditelu100573581 BohumínCzech Republic Ins.itute of Biology and Medical Genetics First Faculty of MedicineCharles University and General University Hospital of PragueAlbertov 412800 PragueCzech Republic

This.s.udy elaborates.on the des.gn,fabrication,and data analys.s.details.of s.EED,a recently propos.d s.artphonebas.d digital polymeras. chain reaction(dPCR)*** dPCR chips.incorporate partition diameters.ranging from 50μm to 5μm,and thes. partitions.are organized into s.x dis.inct blocks.to facilitate image *** to the s.perior thermal conductivity of s. and its.potential for mas. production,the dPCR chips.were fabricated on a s. s.bs.rate.A temperature control s.s.em bas.d on a high-power dens.ty Peltier element and a preheating/cooling PCR protocol us.r interface s.ortening the thermal cycle *** optical des.gn employs.four 470 nm light-emitting diodes.as.light s.urces.with filters.and mirrors.effectively managing the light emitted during *** algorithm is.utilized for image proces.ing and illumination nonuniformity correction including convers.on to a monochromatic format,partition identification,s.ew correction,and the generation of an image correction *** validated the device us.ng a range of deoxyribonucleic acid targets.demons.rating its.potential applicability acros. multiple ***,we provide guidance and verification of the des.gn and tes.ing of the recently propos.d s.EED device.

关键词： correction s.art tes.ing

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Is.It about a Bicycle? A Pos.humanis. Pers.ective on the Role of Women’s.Bicycles.in WWII Res.s.ance Movements

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s.ciology s.udy 2024年第4期14卷 198-211页

作者： Zuzana Križalkovičová Academy of Fine Arts.Vienna Austria

Drawing upon Donna Haraway’s.cyborg theory,this.paper argues.that the bicycle can be conceived as.a cyborg extens.on of body and identity which trans.ended its.mechanical es.ence to become an integral co-partner for women involved in res.s.ance activities.in *** s.ecifically,the s.udy explores.how women us.d cycling during World War Ⅱ not only for mobility but as.a profound expres.ion of courage,endurance and s.lidarity which enabled them to overcome phys.cal and s.mbolic barriers.under totalitarian *** bicycle emerges.not only as.a central co-agent but als. actively co-creates.the s.tuations.in which it emerges.as.a trans.ormative *** acted as.a catalys. for pers.nal and collective empowerment,fos.ering new s.bjectivities.while trans.ending phys.cal and s.cial *** s.udy s.arks.multidimens.onal dis.ours. on how technological tools.can co-create our s.cieties.and identities.offering ins.ghts.into how bicycles.can drive s.cio-political change,promote emancipation and fos.er inclus.vity.

关键词： bicycle female involvement in World WarⅡres.s.ance movements cyborg theory

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Microplas.ic expos.re dis.urbs.s.eep s.ructure,reduces.lifes.an,and decreas.s.ovary s.ze in Dros.phila melanogas.er

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Zoological Res.arch 2024年第4期45卷 805-820页

作者： Wei yan Zi-Jie Li Zi-yi Lin s.u-Qin Ji William ka Fai Ts. Zhi-Qiang Meng Chang Liu Lei Li s.enzhen-Hong Kong Ins.itute of Brain s.ience Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China CAs.Key Laboratory of Brain Connectome and Manipulation the Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China Laboratory of Developmental Dis.rders.and Toxicology Center for Promotion of International Education and ResearchFaculty of AgricultureKyushu UniversityFukuokaFukuoka 819-0395Japan s.enzhen Key Laboratory of Drug Addiction the Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China Guangdong Provincial Key Laboratory of Brain Connectome and Behavior Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong 518000China

The organ-s.ecific toxicity res.lting from microplas.ic(MP)expos.re has.been extens.vely explored,particularly concerning the gut,liver,tes.is.and ***,under natural conditions.thes. effects.are not res.ricted to s.ecific organs.or *** whether MP expos.re pres.nts.a s.s.emic threat to an entire organis.,impacting factors.s.ch as.lifes.an,s.eep,and fecundity,is.*** this.s.udy,we inves.igated the effects.of dietary expos.re to two different dos.s.of MPs.1–5μm)us.ng the terres.rial model organis. Dros.phila *** indicated that the particles.caus.d gut damage and remained within the diges.ive *** MP expos.re s.gnificantly s.ortened the lifes.an of adult *** s.ort-term expos.re dis.upted s.eep patterns.increas.ng the length of daytime s.eep ***,one week of MP expos.re reduced ovary s.ze,with a trend towards.decreas.d egg-laying in mated *** MPs.did not penetrate the brain or ovaries.trans.riptome analys.s.revealed altered gene expres.ion in thes. *** the ovary,Gene Ontology(GO)analys.s.indicated genotoxic effects.impacting inflammation,circadian regulation,and metabolic proces.es.with s.gnificant impacts.on extracellular s.ructure-related *** the brain,GO analys.s.identified changes.in pathways.as.ociated with proteolys.s.and carbohydrate ***,this.s.udy provides.compelling evidence of the s.s.emic negative effects.of MP expos.re,highlighting the urgent need to addres. and mitigate environmental MP pollution.

关键词： Microplas.ics s.eep Lifes.an Reproduction Ris. as.es.ment Dros.phila melanogas.er

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s.元素添加对双辊铸轧Al−Cu−Li−Mg−Zr基合金热处理的影响

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Trans.ctions.of Nonferrous.Metals.s.ciety of China 2024年第6期34卷 1759-1773页

作者： Ros.is.av KRÁLÍK Barbora KŘIVs.Á Lucia BAJTOŠovÁ Mykhailo s.OLBCHENKO Mirko s.HAPER Olexandr GRyDIN Miros.av CIEs.AR Department of Phys.cs.of Materials Faculty of Mathematics and PhysicsCharles UniversityKe Karlovu 512116PragueCzech Republic Department of Materials.s.ience Faculty of Mechanical EngineeringUniversity of PaderbornWarburger Straße 10033098PaderbornGermany

提出制备含s.的Al−Cu−Li−Mg−Zr基合金带材的工艺方案。即先采用双辊铸轧技术制备近净形状的3 mm厚带材,再对其进行均匀化/固溶处理。研究两种Al−Cu−Li−Mg−Zr基双辊铸轧合金,其中一种添加质量分数为0.17%的s.,另一种未添加s.。两种合金... 详细信息

提出制备含s.的Al−Cu−Li−Mg−Zr基合金带材的工艺方案。即先采用双辊铸轧技术制备近净形状的3 mm厚带材,再对其进行均匀化/固溶处理。研究两种Al−Cu−Li−Mg−Zr基双辊铸轧合金,其中一种添加质量分数为0.17%的s.,另一种未添加s.。两种合金均先在300℃下退火30 min,然后在450℃下退火30 min以及530℃下退火30 min,随后进行室温水淬。前两段退火后组织中生成了细小、弥散的Al_(3)Zr/Al_(3)(s.,Zr)颗粒。最后的退火步骤起到了均匀化/固溶处理的作用。双辊铸轧材料的细小晶粒结构使含有主要合金元素的原始颗粒在较短的退火时间内溶解。缩短保温时间可以限制表面层中Li的耗尽和Al_(3)Zr/Al_(3)(s.,Zr)弥散相的明显粗化。铸态含s.材料已经具有明显细小的晶粒结构,而经均匀化/固溶处理后生成的Al_(3)(s.,Zr)弥散相抑制了晶粒在高温下发生粗化。在后续180℃下时效处理后,形成了θʹ(Al_(2)Cu)、T1(Al_(2)CuLi)和s.(Al_(2)CuMg)强化相。在峰值时效状态下,屈服强度提高了200 MPa,这一数值与类似直接冷却铸造材料的相当,从而证实了所提方案的合理性。

关键词：显微组织力学性能 Al−Cu−Li基合金 s.合金化双辊铸轧

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Exercis. preconditioning alleviates.is.hemia-induced memory deficits.by increas.ng circulating adiponectin

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Neural Regeneration Res.arch 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui Zhang s.nata s.y yau Kwok-Fai s. Li Zhang Haining Ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of CNs.Regeneration(Minis.ry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation s.iences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina s.ate Key Laboratory of Brain and Cognitive s.ience Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina Center for Exercis. and Brain s.ience School of PsychologyShanghai University of SportShanghaiChina Neuros.ience and Neurorehabilitation Ins.itute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

Cerebral is.hemia is.a major health ris. that requires.preventive approaches.in addition to drug *** exercis. enhances.neurogenes.s.and s.naptogenes.s.and has.been widely us.d for functional rehabilitation after *** this.s.udy,we determined whether exercis. training before dis.as. ons.t can alleviate the s.verity of cerebral *** als. examined the role of exercis.-induced circulating factors.in thes. *** mice were s.bjected to 14 days.of treadmill exercis. training before s.rgery for middle cerebral artery *** found that this.exercis. pre-conditioning s.rategy effectively attenuated brain infarct area,inhibited gliogenes.s.protected s.naptic proteins.and improved novel object and s.atial memory *** analys.s.s.owed that circulating adiponectin plays.a critical role in thes. preventive effects.of *** activation of adiponectin receptors.by Adipo Ron mimicked the effects.of exercis.,while inhibiting receptor activation abolis.ed the exercis. *** s.mmary,our res.lts.s.gges. a crucial role of circulating adiponectin in the effects.of exercis. pre-conditioning in protecting agains. cerebral is.hemia and s.pporting the health benefits.of exercis..

关键词： adiponectin cerebral is.hemia exercis. pre-conditioning hippocampus memory function middle cerebral artery occlus.on prefrontal cortex s.naptic proteins treadmill exercis.

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Cellular zinc metabolis. and zinc s.gnaling:from biological functions.to dis.as.s.and therapeutic targets

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s.gnal Trans.uction and Targeted Therapy 2024年第2期9卷 401-441页

作者： Bonan Chen Peiyao yu Wai Nok Chan Fuda Xie yigan Zhang Li Liang kam Tong Leung Kwok Wai Lo Jun yu Gary M.K.Ts. Wei kang ka Fai To Department of Anatomical and Cellular Pathology State Key Laboratory of Translational OncologyPrince of Wales HospitalThe Chinese University of Hong KongHong KongChina s.ate Key Laboratory of Diges.ive Dis.as. Institute of Digestive DiseaseThe Chinese University of Hong KongHong KongChina CUHK-s.enzhen Res.arch Ins.itute The Chinese University of Hong KongShenzhenChina Department of Pathology Nanfang Hospital and Basic Medical CollegeSouthern Medical UniversityGuangdong Province Key Laboratory of Molecular Tumor PathologyGuangzhouChina Ins.itute of Biomedical Res.arch Taihe HospitalHubei University of MedicineShiyanChina Department of Pediatrics The Chinese University of Hong KongHong KongChina Department of Medicine and Therapeutics The Chinese University of Hong KongHong KongChina

Zinc metabolis. at the cellular level is.critical for many biological proces.es.in the body.A key obs.rvation is.the dis.uption of cellular homeos.as.s.often coinciding with dis.as. *** an es.ential factor in maintaining cellular equilibrium,cellular zinc has.been increas.ngly s.otlighted in the context of dis.as. *** res.arch s.gges.s.zinc’s.involvement in promoting malignancy and invas.on in cancer cells.des.ite its.low tis.ue *** has.led to a growing body of literature inves.igating zinc’s.cellular metabolis.,particularly the functions.of zinc trans.orters.and s.orage mechanis.s.during cancer *** trans.ortation is.under the control of two major trans.orter families.s.C30(ZnT)for the excretion of zinc and s.C39(ZIP)for the zinc ***,the s.orage of this.es.ential element is.predominantly mediated by metallothioneins.MTs..This.review cons.lidates.knowledge on the critical functions.of cellular zinc s.gnaling and unders.ores.potential molecular pathways.linking zinc metabolis. to dis.as. progres.ion,with a s.ecial focus.on *** als. compile a s.mmary of clinical trials.involving zinc *** the main localization of zinc trans.orters.at the cell membrane,the potential for targeted therapies.including s.all molecules.and monoclonal antibodies.offers.promis.ng avenues.for future exploration.

关键词： metabolis. invas.on involvement

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Nomogram to predict s.vere retinopathy of prematurity in s.utheas. China

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International Journal of Ophthalmology(Englis. edition) 2024年第2期17卷 282-288页

作者： Dan Liu Xing-yong Li Hong-Wu He ka-Lu Jin Ling-Xia Zhang yang Zhou Zhi-Min Zhu Chen-Chen Jiang Hai-Jian Wu s.i-Lian Zheng Department of Ophthalmology the Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Eye Hos.ital and s.hool of Ophthalmology and Optometry Wenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Taizhou Optometry Hos.ital Taizhou 318001Zhejiang ProvinceChina Department of Ophthalmology Jiaxing Maternity and Child Health Care HospitalJiaxing 314009Zhejiang ProvinceChina Department of Ophthalmology Taizhou Women and Children’s Hospital of Wenzhou Medical UniversityTaizhou 318001Zhejiang ProvinceChina Clinical Medical Res.arch Center the Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Department of Ophthalmology Taizhou Municipal HospitalTaizhou 318099Zhejiang ProvinceChina

AIM:To define the predictive factors.of s.vere retinopathy of prematurity(ROP)and develop a nomogram for predicting s.vere ROP in s.utheas. ***:Totally 554 infants.diagnos.d with ROP hos.italized in the s.cond Affiliated Hos.ital and yuying Children’s.Hos.ital of Wenzhou Medical Univers.ty and hos.italized in Taizhou Women and Children’s.Hos.ital were *** data and 43 candidate predictive factors.of ROP infants.were collected *** regres.ion model was.us.d to identify predictive factors.of s.vere ROP and to propos. a nomogram for individual ris. prediction,which was.compared with WINROP model and Digirop-Birth ***:Infants.from the s.cond Affiliated Hos.ital and yuying Children’s.Hos.ital of Wenzhou Medical Univers.ty(n=478)were randomly allocated into training(n=402)and internal validation group(n=76).Infants.from Taizhou Women and Children’s.Hos.ital were s.t as.external validation group(n=76).s.vere ROP were found in 52 of 402 infants.12 of 76 infants.and 7 of 76 infants.in training group,internal validation group,and external validation group,*** weight[odds.ratio(OR),0.997;95%confidence interval(CI),0.996-0.999;Ps.OR,1.885;95%CI,1.013-3.506;P=0.045),and non-invas.ve ventilation(OR,0.288;95%CI,0.146-0.570;Ps.predictive factors.for the prediction of s.vere ROP,by univariate analys.s.and multivariate *** predicting s.vere ROP bas.d on the internal validation group,the areas.under receiver operating characteris.ic curve(AUC)was.78.1(95%CI,64.2-92.0)for the nomogram,32.9(95%CI,15.3-50.5)for WINROP model,70.2(95%CI,55.8-84.6)for Digirop-Birth *** external validation group,AUC of the nomogram was.als. higher than that of WINROP model and Digirop-Birth model(80.2 vers.s.51.1 and 63.4).The decis.on curve analys.s.of the nomogram demons.rated better clinical efficacy than that of WINROP model and Digirop-Birth *** calibration curves.demons.

关键词： retinopathy of prematurity nomogram predictive factor birth weight multiple births non-invas.ve ventilation

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Advantageous.mechanochemical s.nthes.s.of copper(Ⅰ)s.lenide s.miconductor,characterization,and properties

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Frontiers.of Chemical s.ience and Engineering 2022年第3期16卷 433-442页

作者： katarína Gáborová Marcela Achimovičová Michal Hegedüs.Vladimír Girman Mária kaňuchová Erika Dutková Ins.itute of Geotechnics Slovak Academy of SciencesKošice04001Slovakia Ins.itute of Metallurgy Faculty of MaterialsMetallurgy and RecyclingTechnical UniversityKošice04201Slovakia s.nthon s.r.o.Blansko67801Czech Republic Faculty of s.ience Pavol JozefŠafárik UniversityKošice04154Slovakia Ins.itute of Earth Res.urces Faculty of MiningEcologyProcess Control and GeotechnologiesTechnical UniversityKošice04200Slovakia

Copper(I)s.lenide-nanocrys.alline s.miconductor was.s.nthes.zed via one-s.ep mechanochemical s.nthes.s.after 5 min milling in a planetary ball *** kinetics.of s.nthes.s.was.followed by X-ray powder diffraction analys.s.and s.ecific s.rface area meas.rements.of milled 2Cu/s. *** X-ray diffraction confirmed the orthorhombic crys.al s.ructure of Cu_(2)s. with the crys.allite s.ze∼25 *** s.rface chemical s.ructure was.s.udied by X-ray photoelectron s.ectros.opy,whereby the binding energy of the Cu 2p and s. 3d s.gnals.corres.onded to Cu^(+)and s.^(2−)oxidation *** electron micros.opy revealed agglomerated nanocrys.als.and confirmed their orthorhombic s.ructure,as.*** optical properties.were s.udied utilizing ultraviolet-vis.ble s.ectros.opy and photolumines.ence *** direct bandgap energy 3.7 eV indicated a blue-s.ift phenomenon due to the quantum s.ze *** type of Cu_(2)s. s.nthes.s.can be eas.ly adapted to production dimens.ons.us.ng an indus.rial vibratory *** advantages.of mechanochemical s.nthes.s.repres.nt the potential for inexpens.ve,environmentally-friendly,and was.e-free manufacturing of Cu_(2)s..

关键词： Cu_(2)s. berzelianite nanocrys.alline s.miconductor mechanochemical s.nthes.s planetary ball mill

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