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Synthesis of indium tin oxide nano-polycrystalline powders by ultrasonic spray pyrolysis

Rare Metals 2022年第10期41卷 3579-3584页

作者： Li-Hua Zhang Sheng-hui Guo Chao-jin Zhou jin-hui Peng Shao-Hua Ju Jian-Bo Lan Yunnan Provincial Key Laboratory of Intensification Metallurgy Kunming650093China Key Laboratory of Unconventional Metallurgy Ministry of EducationKunming650093China National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology Kunming650093China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming650093China State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming650093China

Indium tin oxide(ITO) nano-polycrystalline powders were prepared by ultrasonic spray pyrolysis(USP) method using a precursor solution of indium and tin chlorides in a simple one-step process without any post-heat treatment,additives and other complex *** morphology and crystal structure of ITO powders were studied by thermogravimetric and differential thermal analysis(TG-DTA),X-ray diffraction(XRD),energy-dispersive spectrometer(EDS),scanning electron microscopy(SEM),laser particle size analyzer(LPSA),transmission electron microscope(TEM),high-resolution transmission electron microscopy(HRTEM) and selected area electron diffraction(SAED),*** results indicate that pure cubic ITO solid solution could be obtained at and above the pyrolysis temperature of 600℃.Through adjusting the size of atomized precursor droplets,the particles with regular spherical shape and smooth surface are also *** spherical particles have a narrow size distribution with a dominant diameter size in the range of 0.52-1.28 μm,and the average value is 1.01 μ*** clear lattice fringes in HRTEM image confirm a polycrystalline structure of ITO particles with the growth direction along(222) direction.

关键词： Indium tin oxide Ultrasonic spray pyrolysis Nano-polycrystalline powder Chloride precursor

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Effect of Curing Age on Chloride Diffusion Coefficient of Recycled Aggregate Concrete Subjected to Compressive Stresses

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Transactions of Nanjing University of Aeronautics and Astronautics 2018年第2期35卷 326-333页

作者： Tang jinzhi Wu jin Wang Wenjian Wang zhe Wu Guanzheng College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics

The effect of curing age on chloride diffusion coefficient of recycled aggregate concrete subjected to different compressive stresses was investigated.A compression loading setup was both designed and *** chloride diffusion coefficients of recycled aggregate concrete under compressive stresses were measured by the rapid chloride ion migration(RCM)*** experimental results show that the chloride diffusion coefficients of recycled aggregate concrete(RAC)under different compressive stress ratios generally decrease with the increase of curing *** RAC subjected to the same compressive stress ratios,the chloride diffusion coefficients approximately have power functions with curing ages and the relationship models are ***,the influence of curing age on chloride diffusion coefficient firstly decreases and then increases as the compressive stress ratio increases.

关键词： recycled aggregate concrete(RAC) chloride diffusion coefficient curing age compressive stress ratio rapid chlorideion migration(RCM) method

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Exploring the Possibility of Deformation Twinning in Pure Aluminum

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Acta Metallurgica Sinica(English Letters) 2016年第7期29卷 647-651页

作者： Tuo Cai zhen-Jun Zhang jin-Bo Yang zhe-Feng Zhang Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences

Can aluminum generate deformation twins？ Contradictories exist among the experimental results, theoretical predictions, and molecular dynamics simulations. Our first-principles calculations based on the full-potential linearly augmented plane wave method show that the bonding electron density of aluminum gathers at the tetrahedral interstices, and this specific electronic structure is in agreement with the experimental data from quantitative convergent-beam electron diffraction. In terms of this characteristic, the matching between the cohesive energy of local deformation twins with different thickness and global matrix can shed light on deformation twins in aluminum. This study may give a lane to insight into deformation twins in different metals.

关键词： Metals and alloys Deformation twinning First-principles Density functional theory

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Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin Li Jian Xiang Lu Qiu Xiaohan Chen Yinkun Zhao Yujue Wang Qu Yue Taotao Gao Wenlong Liu Dan Xiao Zhaoyu jin Panpan Li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

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Ruzsa's Constant on Additive Functions

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Acta Mathematica Sinica,English Series 2013年第2期29卷 345-354页

作者： jin hui FANG Yong Gao CHEN Department of Mathematics Nanjing University of Information Science & Technology School of Mathematical Sciences and Institute of Mathematics Nanjing Normal University

A function f ： N → Ris called additive if f（mn） = f（m）＋f （n） for all m, n with （m, n） = 1. Let μ（x） = maxn≤x（f（n） - f（n ＋ 1）） and v（x） = maxn≤x（f（n ＋ 1） - f（n））. In 1979, Ruzsa proved ... 详细信息

A function f ： N → Ris called additive if f（mn） = f（m）＋f （n） for all m, n with （m, n） = 1. Let μ（x） = maxn≤x（f（n） - f（n ＋ 1）） and v（x） = maxn≤x（f（n ＋ 1） - f（n））. In 1979, Ruzsa proved that there exists a constant c such that for any additive function f, μ（x） ≤ cv（x^2）＋ cf, where cf is a constant depending only on f. Denote by Raf the least such constant c. We cMl Raf Ruzsa＇s constant on additive functions. In this paper, we prove that Raf≤ 20.

关键词： Additive function Ruzsa's constant

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Corrosion mechanism of magnesia-chromite refractories by ZnO-containing fayalite slags: Effect of funnel glass addition

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International Journal of Minerals,Metallurgy and Materials 2019年第12期26卷 1604-1616页

作者： zhe-nan jin Jian-fang Lv Hong-ying Yang Zhi-yuan Ma Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China Guangdong Institute of Resource Comprehensive Utilization Guangdong Academy of SciencesGuangzhou 510650China State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals Guangzhou 510650China Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resources Guangzhou 510650China

An efficient approach for lead extraction from waste funnel glass through the lead smelting process has been proposed. To clarify the effect of funnel glass addition on the degradation of magnesia-chromite refractories by ZnO-containing fayalite slag, the corrosion behavior of magnesia-chromite refractories in lead smelting slags with different funnel glass additions from 0wt% to 40wt% was tested. Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS) was used to acquire the microstructural information of the worn refractory samples. Experimental results showed that the corrosion of magnesia-chromite refractory consisted predominantly of the dissolution of MgO into slag. ZnO and FeO reacted with periclase and chromite to form (Zn,Fe,Mg)O solid solution and (Zn,Fe,Mg)(Fe,Al,Cr)2O4 spinel, respectively. With the addition of funnel glass, the solubility of MgO increased whereas ZnO levels remained stable, thereby resulting in a reduced Mg content and an elevated Zn and Fe content in the (Zn,Fe,Mg)O solid solution and the (Zn,Fe,Mg)(Fe,Al,Cr)2O4 spinel. Considering the stability of the (Zn,Fe,Mg)O solid solution layer and the penetration depth of the slag, the optimal funnel glass addition for lead smelting was found to be 20wt%.

关键词： funnel glass zinc-containing fayalite slag magnesia-chromite refractory corrosion

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Enhanced Temporal Correlation for Universal Lesion Detection

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 3051-3063页

作者： Muwei Jian Yue jin hui Yu School of Computer Science and Technology Shandong University of Finance and EconomicsJinanChina School of Information Science and Technology Linyi UniversityLinyiChina School of Creative Technologies University of PortsmouthPortsmouthUK

Universal lesion detection(ULD)methods for computed tomography(CT)images play a vital role in the modern clinical medicine and intelligent *** is well known that single 2D CT slices lack spatial-temporal characteristics and contextual information compared to 3D CT ***,3D CT blocks necessitate significantly higher hardware resources during the learning ***,efficiently exploiting temporal correlation and spatial-temporal features of 2D CT slices is crucial for ULD *** this paper,we propose a ULD network with the enhanced temporal correlation for this purpose,named *** designed TCE module is applied to enrich the discriminate feature representation of multiple sequential CT ***,we employ multi-scale feature maps to facilitate the localization and detection of lesions in various *** experiments are conducted on the DeepLesion benchmark demonstrate that thismethod achieves 66.84%and 78.18%for FS@0.5 and FS@1.0,respectively,outperforming compared state-of-the-art methods.

关键词： Universal lesion detection computational biology medical computing deep learning enhanced temporal correlation

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Simulation of the T-jump triggered unfolding and thermal unfolding vibrational spectroscopy related to polypeptides conformation fluctuation

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Science China Chemistry 2017年第8期60卷 1115-1129页

作者： Xian Chen Tianmin Wu zhe-Ning Chen Tan jin Wei Zhuang Yisong zheng State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matte~ Chinese Academy of Sciences Fuzhou 350002. China

We review in this article our recent simulation works on modeling peptide T-jump and thermal unfolding Fourier transform infrared spectroscopy(FTIR) and two-dimensional infrared(2DIR) spectra. The theoretical and computational techniques used,including Markov state model(MSM), integrated tempering sampling(ITS) and nonlinear exciton propagation(NEP), are first briefly introduced. The protocols for simulating the thermal unfolding as well as T-jump unfolding are then summarized in details. The simulated spectral features, such as the intensity and ellipticity, are demonstrated to agree well with the experimental observations.

关键词： polypeptides amide vibration nonlinear response MSMs T-jump implicit solvent model ITS 2DIR folding landscape

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Block Monotone Iterative Algorithms for Variational Inequalities with Nonlinear Operators

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Acta Mathematicae Applicatae Sinica 2008年第2期24卷 221-232页

作者： Ming-hui Ren jin-ping Zeng Department of Mathematics Hunan University of Arts and Science Changde 415000 China College of Software Dongguan University of Technology Dongguan 511700 China

Some block iterative methods for solving variational inequalities with nonlinear operators are proposed. Monotone convergence of the algorithms is obtained. Some comparison theorems are also established. Compared with the research work in given by Pao in 1995 for nonlinear equations and research work in given by Zeng and Zhou in 2002 for elliptic variational inequalities, the algorithms proposed in this paper are independent of the boundedness of the derivatives of the nonlinear operator.

关键词： Monotone iterative algorithm upper solution lower solution comparison theorem variationalinequality

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Exponential Synchronization of Impulsive Complex Networks with Output Coupling

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International Journal of Automation and computing 2013年第4期10卷 350-359页

作者： Yue-hui Zhao jin-Liang Wang College of Post and Telecommunication of Wuhan Institute of Technology Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical Engineering Beihang University

This paper proposes a new impulsive complex delayed dynamical network model with output coupling, which is totally different from some existing network models. Then, by employing impulsive delay differential inequalities, some sufficient conditions are obtained to guarantee the global exponential state synchronization and output synchronization of the impulsive complex delayed dynamical network. Finally, two numerical examples are given to demonstrate the effectiveness of the obtained results.

关键词： Impulsive complex networks output coupling state synchronization output synchronization impulsive delay differential inequalities.

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