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10篇 您的检索式:作者名="Mingda Xu"
    题名 作者 年代 出处 被引量
1Lithium metal batteries for high energy density:Fundamental electrochemistry and challenges显示文摘The dependence on portable devices and electrical vehicles has triggered the awareness on the energy storage systems with ever-growing energy density.Lithium metal batteries(LMBs)has revived and attracted considerable attention due to its high volumetric(2046 m Ah cm-3),gravimetric specific capacity(3862 m Ah g^(-1))and the lowest reduction potential(-3.04 V vs.SHE.).However,during the electrochemical process of lithium anode,the growth of lithium dendrite constitutes the biggest stumbling block on the road to LMBs application.The undesirable dendrite not only limit the Coulombic efficiency(CE)of LMBs,but also cause thermal runaway and other safety issues due to short-circuits.Understanding the mechanisms of lithium nucleation and dendrite growth provides insights to solve these problems.Herein,we summarize the electrochemical models that inherently describe the lithium nucleation and dendrite growth,such as the thermodynamic,electrodeposition kinetics,internal stress,and interface transmission models.Essential parameters of temperature,current density,internal stress and interfacial Li+flux are focused.To improve the LMBs performance,state-of-the-art optimization procedures have been developed and systematically illustrated with the intrinsic regulation principles for better lithium anode stability,including electrolyte optimization,artificial interface layers,threedimensional hosts,external field,etc.Towards practical applications of LMBs,the current development of pouch cell LMBs have been further introduced with different assembly systems and fading mechanism.However,challenges and obstacles still exist for the development of LMBs,such as in-depth understanding and in-situ observation of dendrite growth,the surface protection under extreme condition and the self-healing of solid electrolyte interface.Mingda Gao Hui Li Li Xu Qing Xue Xinran Wang Ying Bai Chuan Wu 2021Journal of Energy Chemistry2021,30,8:6
2On-demand one-step synthesis of monodisperse funetional polymeric mi- crospheres with droplet mierofluidies显示文摘YU Xu CHENG Gong ZHOU MingDa 2015Langmuir2015,31,13:1
3Downward continuation of airborne gravimetry data based on Poisson integral iteration method显示文摘The research and application of airborne gravimetry technology has become one of the hottest topics in gravity field in recent years.Downward continuation is one of the key steps in airborne gravimetry data processing,and the quality of continuation results directly influence the further application of surveying data.The Poisson integral iteration method is proposed in this paper,and the modified Poisson integral discretization formulae are also introduced in the downward continuation of airborne gravimerty data.For the test area in this paper,compared with traditional Poisson integral discretization formula,the continuation result of modified formulae is improved by 10.8 mGal,and the precision of Poisson integral iteration method is in the same amplitude as modified formulae.So the Poisson integral iteration method can reduce the discretization error of Poisson integral formula effectively.Therefore,the research achievements in this paper can be applied directly in the data processing of our country's airborne scalar and vector gravimetry.Xiaogang Liu Zhongmiao Sun Kang Xu Mingda Ouyang 2017Geodesy and Geodynamics2017,8,4:1
4Machining of metal matrix composites 显示文摘Xu Jiuhua Zuo Dunwen Yang Mingda 1995Transactions of NUAA1995,12,2:1
5Machining of metal matrix composites显示文摘Xu Jiuhua Zuo Dunwen Yang Mingda 1995Transactions of Nanjing University of Aeronautics & Astronutics1995,12,2:1
6具有高导热性的聚乙烯薄膜显示文摘聚合物材料,也就是通常说的塑料,由于其独特的性能,使其成为热绝缘体的绝佳材料。近年来的研究表明,聚合物具有较高的导热性,但其传输机制仍然未知。在本文中作者发明了一种具有62Wm^-1K^-1高导热性的聚乙烯薄膜,比普通聚合物的导热性(-0.1Wm^-1K^-1)大两个数量级,甚至超过许多常见的金属和陶瓷。结构研究和热模拟实验表明,这种薄膜由具有晶态和非晶态区域的纳米纤维组成,非晶态区域具有非常高(>16Wm^-1K^-1)的导热系数。作者的这项研究成果为具有重量轻、耐用、柔韧、耐腐蚀、易于加工等优势的高导热聚合物的设计和合成奠定了基础。Yanfei Xu Daniel Kraemer Bai Song Zhang Jiang Jiawei Zhou James Loomis Jianjian Wang Mingda Li Hadi Ghasemi Xiaopeng Huang Xiaobo Li Gang Chen 李巧红 2019家电科技2019,0,3:0
7Corrigendum to“Bioinspired supramolecular nanofiber hydrogel through self-assembly of biphenyl-tripeptide for tissue engineering”[Bioact.Mater.8(2022)396-408]显示文摘The authors regret that the published version of the above article contained error in Fig.6F,which was not identified during the proofing stage.The wrong live/dead stain,F-actin stain,and SEM images of BPAA-GFF gel were selected during the assembly of Fig.6F.The images of Fig.6F have been replaced with the correct images as follow.The authors apologize for this error and state that the figure’s correction did not change the scientific conclusions of the article in any way.Yong Sun Xing Li Mingda Zhao Yafang Chen Yang Xu Kefeng Wang Shaoquan Bian Qing Jiang Yujiang Fan Xingdong Zhang 2023Bioactive Materials2023,,5:0
8A SPX domain vacuolar transporter links phosphate sensing to homeostasis in Arabidopsis显示文摘Excess phosphate(Pi)is stored into the vacuole through Pi transporters so that cytoplasmic Pi levels remain stable in plant cells.We hypothesized that the vacuolar Pi transporters may harbor a Pi-sensing mechanism so that they are activated to deliver Pi into the vacuole only when cytosolic Pi reaches a threshold high level.We tested this hypothesis using Vacuolar Phosphate Transporter 1(VPT1),a SPX domain-containing vacuolar Pi transporter,as a model.Recent studies have defined SPX as a Pi-sensing module that binds inositol polyphosphate signaling molecules(InsPs)produced at high cellular Pi status.We showed here that Pi-deficient conditions or mutation of the SPX domain severely impaired the transport activity of VPT1.We further identified an auto-inhibitory domain in VPT1 that suppresses its transport activity.Taking together the results from detailed structure-function analyses,our study suggests that VPT1 is in the auto-inhibitory state when Pi status is low,whereas at high cellular Pi status InsPs are produced and bind SPX domain to switch on VPT1 activity to deliver Pi into the vacuole.This thus provides an auto-regulatory mechanism for VPT1-mediated Pi sensing and homeostasis in plant cells.Mingda Luan Fugeng Zhao Guangfang Sun Min Xu Aigen Fu Wenzhi Lan Sheng Luan 2022Molecular Plant2022,15,10:0
9Bioinspired supramolecular nanofiber hydrogel through self-assembly of biphenyl-tripeptide for tissue engineering显示文摘Supramolecular nanofiber peptide assemblies had been used to construct functional hydrogel biomaterials and achieved great progress.Here,a new class of biphenyl-tripeptides with different C-terminal amino acids sequences transposition were developed,which could self-assemble to form robust supramolecular nanofiber hydrogels from 0.7 to 13.8 kPa at ultra-low weight percent(about 0.27 wt%).Using molecular dynamics simulations to interrogate the physicochemical properties of designed biphenyl-tripeptide sequences in atomic detail,reasonable hydrogen bond interactions and“FF”brick(phenylalanine-phenylalanine)promoted the formation of supramolecular fibrous hydrogels.The biomechanical properties and intermolecular interactions were also analyzed by rheology and spectroscopy analysis to optimize amino acid sequence.Enhanced L929 cells adhesion and proliferation demonstrated good biocompatibility of the hydrogels.The storage modulus of BPAA-AFF with 10 nm nanofibers self-assembling was around 13.8 kPa,and the morphology was similar to natural extracellular matrix.These supramolecular nanofiber hydrogels could effectively support chondrocytes spreading and proliferation,and specifically enhance chondrogenic related genes expression and chondrogenic matrix secretion.Such biomimetic supramolecular short peptide biomaterials hold great potential in regenerative medicine as promising innovative matrices because of their simple and regular molecular structure and excellent biological performance.Yong Sun Xing Li Mingda Zhao Yafang Chen Yang Xu Kefeng Wang Shaoquan Bian Qing Jiang Yujiang Fan Xingdong Zhang 2022Bioactive Materials2022,7,2:0
10Travel-related Importation and Exportation Risks of SARS-CoV-2 Omicron Variant in 367 Prefectures(Cities)-China,2022显示文摘Introduction:Minimizing the importation and exportation risks of coronavirus disease 2019(COVID-19)is a primary concern for sustaining the“Dynamic COVID-zero”strategy in China.Risk estimation is essential for cities to conduct before relaxing border control measures.Methods:Informed by the daily number of passengers traveling between 367 prefectures(cities)in China,this study used a stochastic metapopulation model parameterized with COVID-19 epidemic characteristics to estimate the importation and exportation risks.Results:Under the transmission scenario(R0=5.49),this study estimated the cumulative case incidence of Changchun City,Jilin Province as 3,233(95%confidence interval:1,480,4,986)before a lockdown on March 14,2022,which is close to the 3,168 cases reported in real life by March 16,2022.In a total of 367 prefectures(cities),127(35%)had high exportation risks according to the simulation and could transmit the disease to 50%of all other regions within a period from 17 to 94 days.The average time until a new infection arrives in a location in 1 of the 367 prefectures(cities)ranged from 26 to 101 days.Conclusions:Estimating COVID-19 importation and exportation risks is necessary for preparedness,prevention,and control measures of COVID-19—especially when new variants emerge.Yuan Bai Mingda Xu Caifen Liu Mingwang Shen Lin Wang Linwei Tian Suoyi Tan Lei Zhang Petter Holme Xin Lu Eric H.Y.Lau Benjamin J.Cowling Zhanwei Du 2022China CDC weekly2022,4,40:0
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