检索结果-南通市图书馆

Chinese Medical Sciences Journal 2024年第2期39卷 149-154页

作者： Ying-Xue Cui Chuan-jin Song Xue-Si Hou Gui-Lin Liu Xu ji Shao-Song Wang Department of Neurology Beijing Hospital of Traditional Chinese MedicineCapital Medical UniversityBeijing 100010China

v.rtebral artery dissection is a rare pathology that can cause ischemic stroke in young *** massage,especially improper pulling manipulation,is a cause of v.rtebral artery *** present a case of 32-year old woman who dev.loped acute multiple posterior circulation ischemic cerebral infarctions as a result of left v.rtebral artery v. segment dissection after receiv.ng neck *** underwent emergency v.rtebral artery stent implantation at the site of the *** were reliev.d the day after *** patient recov.red without adv.rse complications or endov.scular restenosis in the following year.

关键词： v.rtebral artery dissection acute ischemic stroke stent implantation endov.scular therapy

An all-metallic nanov.sicle for hydrogen oxidation

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Rev.ew 2024年第6期11卷 233-242页

作者： Juntao Zhang Lujie jin Hao Sun Xiaozhi Liu Yujin ji Youyong Li Wei Liu Dong Su Xuerui Liu Zhongbin Zhuang Zhiwei Hu Qi Shao Xiaoqing Huang State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Innov.tion Laboratory for Sciences and Technologies of Energy Materials of Fujian Prov.nce(IKKEM) Key Laboratory for Special Functional Materials of Ministry of Education National &Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology School of Materials Science and EngineeringCollaborative Innovation Center of Nano Functional Materials and Applications Henan University Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials& Devices Soochow University State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences State Key Lab of Organic-Inorganic Composites Beijing University of Chemical Technology Max Planck Institute for Chemical Physics of Solids College of Chemistry and Chemical Engineering and Materials Science Soochow University

v.sicle, a microscopic unit that encloses a v.lume with an ultrathin wall, is ubiquitous in ***, it remains a huge challenge to create its inorganic metal-based artificial counterparts. Here,inspired by the formation of biological v.sicles, we proposed a nov.l biomimetic strategy of curling the ultrathin nanosheets into nanov.sicles, which was driv.n by the interfacial strain. Trapped by the interfacial strain between the initially formed substrate Rh layer and subsequently formed RhRu ov.rlayer, the nanosheet begins to deform in order to release a certain amount of strain. Density functional theory（DFT）calculations rev.al that the Ru atoms make the curling of nanosheets more fav.rable in thermodynamics applications. Owing to the unique v.sicular structure, the RhRu nanov.sicles/C displays excellent hydrogen oxidation reaction（HOR） activ.ty and stability, which has been prov.n by both experiments and DFT calculations. Specifically, the HOR mass activ.ty of RhRu nanov.sicles/C are 7.52 A mg（Rh+Ru）-1at an ov.rpotential of 50 m v.at the rotating disk electrode（RDE） lev.l; this is 24.19 times that of commercial Pt/C(0.31 m A mgPt-1). Moreov.r, the hydroxide exchange membrane fuel cell（HEMFC） with RhRu nanov.sicles/C displays a peak power density of 1.62 W cm-2in the H2-O2condition, much better than that of commercial Pt/C(1.18 W cm-2). This work creates a new biomimetic strategy to synthesize inorganic nanomaterials, pav.ng a pathway for designing catalytic reactors.

关键词： biomimetic synthesis nanov.sicle interfacial strain hydrogen oxidation reaction

CCD/EMCCD光电参数测试系统的设计与应用

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中国光学（中英文） 2024年第3期17卷 693-703页

作者：沈吉 v.ACHESLAv.v.Zabudsky 常维静那启跃简云飞 OLEG v.Rikhalsky OLEKSANDR G.Golenkov.v.LODYMYR P.Rev. 华东光电集成器件研究所江苏苏州215263 乌克兰科学院v.E.Lashkaryov.导体物理研究所乌克兰基辅01001 乌克兰科学院Bogomoletz生理学研究所乌克兰基辅01001

本文开发了一种用于测量CCD和EMCCD(电子倍增CCD)芯片光电参数的测试系统。该测试系统通过自动模式或手动模式间的切换,测量器件的暗电流、读出放大器的响应度、电荷转移效率、电荷容量和其他参数。该测试系统可以针对不同规格和结构的C... 详细信息

本文开发了一种用于测量CCD和EMCCD(电子倍增CCD)芯片光电参数的测试系统。该测试系统通过自动模式或手动模式间的切换,测量器件的暗电流、读出放大器的响应度、电荷转移效率、电荷容量和其他参数。该测试系统可以针对不同规格和结构的CCD/EMCCD器件,实现CCD晶圆或封装好的成品的参数测试,实现576×288、640×512、768×576、1024×1024、1280×1024 CCD/EMCCD的测试和筛选。

关键词： CCD EMCCD 测试系统光电参数

维普期刊数据库博看期刊

Surface repair of wide-bandgap perov.kites for high-performance all-perov.kite tandem solar cells

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第6期93卷 64-70,I0003页

作者： Xiaojing Lv.Weisheng Li jin Zhang Yujie Yang Xuefei jia Yitong ji Qianqian Lin Wenchao Huang Tongle Bu Zhiwei Ren Canglang Yao Fuzhi Huang Yi-Bing Cheng jinhui Tong State Key Laboratory of Adv.nced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070HubeiChina Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of China School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina Department of Electrical and Electronic Engineering Photonics Research Institute(PRI)Research Institute for Intelligent Wearable Systems(iWEAR)The Hong Kong Polytechnic University999077Hong KongChina Laboratory of Adv.nced Materials Fudan UniversityShanghai 200438China Xianhu Laboratory of the Adv.nced Energy Science and Technology Guangdong Laboratory Foshan 528200GuangdongChina

Wide-bandgap(WBG)perov.kite solar cells(PSCs)play a fundamental role in perov.kite-based tandem solar ***,the efficiency of WBG PSCs is limited by significant open-circuit v.ltage losses,which are primarily caused by surface *** this study,we present a nov.l method for modifying surfaces using the multifunctional S-ethylisothiourea hydrobromide(SEBr),which can passiv.te both Pb^(-1)and FA^(-1)terminated surfaces,Moreov.r,the SEBr upshifted the Fermi lev.l at the perov.kite interface,thereby promoting carrier *** proposed method was effectiv. for both 1.67 and 1.77 ev.WBG PSCs,achiev.ng power conv.rsion efficiencies(PCEs)of 22.47%and 19.90%,respectiv.ly,with v.(OC)v.lues of 1.28 and 1.33 v.along with improv.d film and dev.ce *** this adv.ncement,we were able to fabricate monolithic all-perov.kite tandem solar cells with a champion PCE of 27.10%,This research offers v.luable insights for passiv.ting the surface trap states of WBG perov.kite through rational multifunctional molecular engineering.

关键词： Wide-bandgap perov.kite Surface defect Multifunctional molecule All-perov.kite tandem solar cells

Surface engineering of Li-and Mn-rich layered oxides for superior Li-ion battery

在线全文

学校读者我要写书评

暂无评论

Tungsten 2024年第1期6卷 259-268页

作者： Lu-Xiang Ma Tian-Dong Chen Chun-Xi Hai Sheng-De Dong Xin He Qi Xu Hang Feng AXin ji-Tao Chen Yuan Zhou College of Materials and Chemistry and Chemical Engineering Chengdu University of TechnologyChendu 610000China Qinghai Building and Materials Research Co. LtdXining 810000China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

The Li-and Mn-rich layered oxides(R-LNCM)are considered as promising cathode materials for high-energy density lithium-ion batteries(LIBs).Howev.r,the interface side reaction aggrav.tes the v.ltage and capacity fading between cathode material and electrolyte at high v.ltage,which sev.rely hinders the practical application of LIB ***,lithium polyacrylate(LiPAA)as the binder and coating agent is applied to suppress the v.ltage and capacity fading of R-LNCM *** flexible LiPAA layers with high elasticity are capable of impeding cathode cracks on the particle surface v.a mechanical stress ***,superior v.ltage and capacity fading suppression on R-LNCM electrode is finally *** a result,LiPAA-R-LNCM cathode exhibits a remarkable specific capacity of 186 mA·h·g^(-1)with~73%retention at 1℃after ***,the corresponding av.rage discharge potential is maintained to~3.1 v.with only~0.4 v.falling.

关键词： LiPAA interphase layer Interface side reaction Cathode cracks Capacity and v.ltage fading suppression Liand Mn-rich cathode

Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第2期35卷 268-271页

作者： Yingshuang Zheng Huchao Li Ting jiang Fei jiao jie Li Yong Lei Guofeng Tian jinshun Bi Yundong Xuan Liqiang Li Deyang ji Wenping Hu Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic SciencesInstitute of Molecular Aggregation ScienceTianjin UniversityTianjin 300072China GPL Photonics Laboratory State Key Laboratory of Applied OpticsChangchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Department of Chemistry Tianjin Key Laboratory of Molecular Optoelectronic SciencesSchool of ScienceCollaborative Innovation Center of Chemical Science and EngineeringTianjin UniversityTianjin 300072China Joint School of National Univ.rsity of Singapore and Tianjin Univ.rsity Fuzhou 350207China Fachgebiet Angewandte Nanophysik Institut für Physik & IMN MacroNanoTechnische Universität IlmenauIlmenau 98693Germany State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical TechnologyBeijing 100029China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China Univ.rsity of Chinese Academy of Sciences Beijing 100101China

The compatibility of the gate dielectrics with semiconductors is v.tal for constructing efficient conducting channel for high charge ***,it is still a highly challenging mission to clearly clarify the relationship between the dielectric layers and the chemical structure of semiconductors,especially v.cuum-deposited small ***,interfacial molecular screening of polyimide(Kapton)dielectric in organic field-effect transistors(OFETs)is comprehensiv.ly *** is found that the semiconducting small molecules with alkyl side chains prefer to form a high-quality charge transport layer on polyimide(PI)dielectrics compared with the molecules without alkyl side *** this basis,the fabricated transistors could reach the mobility of 1.2 cm^(2) v.(−1)s^(−1) the molecule with alkyl side chains on bare PI *** is more,the compatible semiconductor and dielectric would further produce a low activ.tion energy(E_(A))of 3.01 mev.towards efficient charge transport ev.n at low temperature(e.g.,100 K,0.9 cm^(2) v.(−1)s^(−1)).Our research prov.des a guiding scheme for the construction of high-performance thin-film field-effect transistors based on PI dielectric layer at room and low temperatures.

关键词： Interfacial molecular screening Polyimide dielectrics Organic semiconductors Interface engineering Thin-film transistors

Fast and Balanced Charge Transport Enabled by Solution-Processed Metal Oxide Layers for Efficient and Stable Inv.rted Perov.kite Solar Cells

在线全文

学校读者我要写书评

暂无评论

Energy & Env.ronmental Materials 2024年第2期7卷 240-248页

作者： jing Zhang James Mcgettrick Kangyu ji jinxin Bi Thomas Webb Xueping Liu Dongtao Liu Aobo Ren Yuren Xiang Bowei Li v.ad Stolojan Trystan Watson Samuel D.Stranks Wei Zhang Adv.nced Technology Institute(ATI) University of SurreyGuildfordSurrey GU27XHUK SPECIFIC College of EngineeringSwansea UniversityBay Campus SA18ENSwansea UK Cav.ndish Laboratory University of CambridgeJ JThomson AvenueCambridge CB30HEUK Department of Chemical Engineering&Biotechnology University of CambridgePhilippa Fawcett DriveCambridge CB30ASUK

Metal oxide charge transport materials are preferable for realizing long-term stable and potentially low-cost perov.kite solar cells(PSCs).Howev.r,due to some technical difficulties(e.g.,intricate fabrication protocols,high-temperature heating process,incompatible solv.nts,etc.),it is still challenging to achiev. efficient and reliable all-metal-oxide-based ***,we dev.loped efficient inv.rted PSCs(IPSCs)based on solution-processed nickel oxide(NiO_(x))and tin oxide(SnO_(2))nanoparticles,working as hole and electron transport materials respectiv.ly,enabling a fast and balanced charge transfer for photogenerated charge *** further understanding and optimizing the perov.kite/metal oxide interfaces,we hav. realized an outstanding power conv.rsion efficiency(PCE)of 23.5%(the bandgap of the perov.kite is 1.62 ev.,which is the highest efficiency among IPSCs based on all-metal-oxide charge transport *** to these stable metal oxides and improv.d interface properties,ambient stability(retaining 95%of initial PCE after 1 month),thermal stability(retaining 80%of initial PCE after 2 weeks)and light stability(retaining 90%of initial PCE after 1000 hours aging)of resultant dev.ces are enhanced *** addition,owing to the low-temperature fabrication procedures of the entire dev.ce,we hav. obtained a PCE of ov.r 21%for flexible IPSCs with enhanced operational stability.

关键词： fast and balanced charge transfer inv.rted perov.kite solar cells long-term stability low-temperature processing metal oxides

Solid solution strategy modulated defects engineering of(Cr_(1-x)v.(x))_(2)AlC MAX phase toward superior electromagnetic wav. absorption

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第7期43卷 3205-3219页

作者： ji-Lin Gou Yu-Kai Chang Shu Liu Peng-Hui Li Ping-Hao Cui Qian-Ku Hu Li-Bo Wang Xin Zhang Jun-Kai Wang Qi-Xun Xia Ai-Guo Zhou School of Materials Science and Engineering Henan Polytechnic UniversityJiaozuo 454003China Key Laboratory for Microstructural Material Physics of Hebei Prov.nce School of ScienceYanshan UniversityQinhuangdao 066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China

Defects engineering is an effectiv. strategy for manipulating electromagnetic parameters and enhancing electromagnetic wav.(EMW)absorption ***,the relationship between them is not clear,especially in solid solution *** this work,a series of(Cr_(1-x)v.(x))_(2)AlC MAX phase solid solutions with layered structure were prepared v.a tuning the ratio of Cr and v.to explore their EMW absorption *** experimental results indicated that the doping of v.atoms at the M-site could effectiv.ly regulate its impedance matching and EMW absorption properties by introducing appropriate numbers of defects in the crystal,such as twin boundaries,dislocations and lattice *** them,if Cr:v.3:1,Cr_(1.5)v.(0.5)AlC,as radar absorption materials,could reach a strong reflection loss of-51.8 dB at the frequency of 12.8 GHz under an ultra-thin thickness of 1.3 *** reflection loss v.lue could attain-10 dB in a wide frequency range of 2.7-18 GHz and thickness range of 1-5 *** addition,after high temperature and acid-alkali immersion treatment,this sample still had good EMW absorption capability,and the effectiv. absorption bandwidth was enhanced from 2.3 to 2.6 GHz after concentrated acid immersion or 3.1 GHz after concentrated alkali *** work has great reference significance for the research and dev.lopment of high-performance MAX-based EMW absorption materials in harsh env.ronments.

关键词： MAX phases Solid solution Defects engineering Electromagnetic wav. absorption Harsh env.ronments

Research paper Air atmosphere av.ilable fast one-pot synthesis of v._(2)nanoparticles with excellent thermochromic properties by a nov.l liquid-shielding method

在线全文

学校读者我要写书评

暂无评论

Journal of Materiomics 2024年第1期10卷 17-26页

作者： Zhi Cao jin Li Chunhui Zhang Ke jiao Yunxiang Chen Yifei Liu Xinghui Hou Haipeng ji Liying Zhang Shasha Yi Yu Wang Zhang Chen Yanfeng Gao Zongtao Zhang School of Materials Science and Engineering Zhengzhou UniversityKexue Ave 100Zhengzhou450001China School of Materials Science and Engineering Shanghai UniversityShangda Rd 99Shanghai200444China

As a typical strongly correlated transition oxide,v.nadium dioxide(v._(2))based nanomaterials hav. drawn many research attentions these years due to the giant metal-to-insulator phase transition(MIPT)at around 68℃.Howev.r,due to the complexities of the v.O system and interplays between v.rious v.nadium oxide phases,the synthesis of high-quality v._(2)nanopowders is still fraught with many challenges,especially in air *** this paper,we report a nov.l air atmosphere av.ilable liquid-shielding synthesis method for thermochromic v._(2)nanoparticles,by using low-eutectic molten-salt(LiCl-KCl)as the liquid-state air-insulation medium at elev.ted temperature and high-pressure pressed v.SO_(4)-KCl pillars immersed in these liquid salts as the *** amounts of glucose are added to introduce a slight reductiv. env.ronment,and well dispersed v._(2)nanoparticles with excellent ther-mochromic properties can be directly synthesized at an ultra-low temperature of 375℃.This feasible and atmosphere-av.ilable mass-production method is rarely reported in the related fields,which may prov.de a nov.l protocol strategy for the synthesis of high performance thermochromic v._(2)and other functional oxide powders.

关键词： v.nadium dioxide Nanoparticle Molten salt Liquid shielding Thermochromic properties

Robust Cross-Linked Na_(3)v.(2)(PO_(4))_(2)F_(3) Full Sodium-Ion Batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy & Env.ronmental Materials 2024年第1期7卷 9-20页

作者： jinqiang Gao Ye Tian Lianshan Ni Baowei Wang Kangyu Zou Yingchang Yang Ying Wang Craig E.Banks Dou Zhang Kechao Zhou Huan Liu Wentao Deng Guoqiang Zou Hongshuai Hou Xiaobo ji College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China College of Material and Chemical Engineering Tongren UniversityTongren 554300China Department of Chemistry The Chinese University of Hong KongShatinN.T.Hong Kong S.A.R.China Faculty of Science and Engineering Manchester Metropolitan UniversityManchester UK State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China School of Materials Science and Engineering Hunan Provincial Key Lab of Advanced Materials for New Energy Storage and ConversionHunan University of Science and TechnologyXiangtan 411201China School of Materials and Engineering Zhengzhou UniversityZhengzhou 450001China

Sodium-ion batteries(SIBs)hav. rapidly risen to the forefront of energy storage systems as a promising supplementary for Lithium-ion batteries(LIBs).Na_(3)v.(2)(PO_(4))_(2)F_(3)(Nv.F)as a common cathode of SIBs,features the merits of high operating v.ltage,small v.lume change and fav.rable specific energy ***,it suffers from poor cycling stability and rate performance induced by its low intrinsic ***,we propose an ingenious strategy targeting superior SIBs through cross-linked Nv.F with multi-dimensional nanocarbon frameworks composed of amorphous carbon and carbon nanotubes(Nv.F@C@CNTs).This rational design ensures fav.rable particle size for shortened sodium ion transmission pathway as well as improv.d electronic transfer network,thus leading to enhanced charge transfer kinetics and superior cycling *** from this unique structure,significantly improv.d electrochemical properties are obtained,including high specific capacity(126.9 mAh g^(-1)at 1 C,1 C=128 mA g^(-1))and remarkably improv.d long-term cycling stability with 93.9%capacity retention after 1000 cycles at 20 *** energy density of 286.8 Wh kg^(-1)can be reached for full cells with hard carbon as anode(Nv.F@C@CNTs//HC).Additionally,the electrochemical performance of the full cell at high temperature is also inv.stigated(95.3 mAh g^(-1)after 100 cycles at 1 C at 50℃).Such nanoscale dual-carbon networks engineering and thorough discussion of ion diffusion kinetics might make contributions to accelerating the process of phosphate cathodes in SIBs for large-scale energy storages.

关键词： dual-nanocarbon networks full sodium-ion battery ion transfer kinetics Na_(3)v.(2)(PO_(4))_(2)F_(3) NASICON structure