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Delicate synthesis of quasi-inverse opal structural Na_(3)V_(2)(PO_(4))_(3)/N-C and Na4MnV(PO_(4))_(3)/N-C as cathode for high-rate sodium-ion batteries

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Rare Metals 2022年第5期41卷 1637-1646页

作者： Xin-Ran Qi Yuan Liu Lin-Lin Ma Bao-Xiu Hou Hong-Wei Zhang Xiao-Hui Li Ya-Shi Wang yi-Qing Hui Ruo-Xun Wang Chong-Yang Bai Hao Liu jian-Jun Song Xiao-Xian Zhao Department of Chemistry College of ScienceHebei Agricultural UniversityBaoding 071001China College of Physics Qingdao UniversityQingdao 266071China Centre for Clean Energy Technology School of Mathematical and Physical SciencesFaculty of ScienceUniversity of Technology SydneySydney NSW 2007Australia

Poor conductivity and sluggish Na^(+) diffusion kinetic are two major drawbacks for practical application of sodium super-ionic conductor(NASICON) in sodium-ion batteries. In this work, we report a simple approach to synthesize quasi-inverse opal structural NASICON/N-doped carbon for the first time by a delicate one-pot solution-freeze drying-calcination process, aiming at fostering the overall electrochemical performance. Especially, the quasi-inverse opal structural Na_(3)V_(2)(PO_(4))_(3)/N-C(Q-NVP/N-C) displayed continuous pores, which provides interconnected channels for electrolyte permeation and abundant contacting interfaces between electrolyte and materials, resulting in faster kinetics of redox reaction and higher proportion of capacitive *** a cathode material for sodium-ion batteries, the Q-NVP/N-C exhibits high specific capacity of 115 mAh·g^(-1) at 1C, still 61 mAh·g^(-1) at ultra-high current density of 100C,and a specific capacity of 89.7mAh·g^(-1) after 2000 cycles at *** work displays the general validity of preparation method for not only Q-NVP/N-C,but also Na_(3)V_(2)(PO_(4))_(3),which provides a prospect for delicate synthesis of NASICON materials with excellent electrochemical performance.

关键词： Sodium battery Structural regulation Inverse opal structure Sodium super-ionic conductor(NASICON) Na_(3)V_(2)(PO_(4))_(3)

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Refining geoid and vertical gradient of gravity anomaly

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Geodesy and Geodynamics 2011年第4期2卷 1-9页

作者： Zhang Chijun Bian Shaofeng yi Zhourun Liu Lingtao Fang jian Institute of Geodesy and Geophysics Chinese Academy Science Wuhan 430077 China Naval Engineering University Wuhan 430033 China

We have derived and tested several relations between geoid （N） and quasi-geoid （~） with model validation. The elevation correction consists of the first-term （Bouguer anomaly） and second-term （vertical gradient of gravity anomaly）. The vertical gradient was obtained from direct measurement and terrain calcula- tion. The test results demonstrated that the precision of geoid can reach centimeter-level in mountains less than 5000 meters high.

关键词： refine geoid quasi-geoid gravity anomaly vertical gradient

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混合样本线性模型M估计的强相合性

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应用数学 2007年第2期20卷 381-385页

作者：李强吴翊国防科技大学理学院数学与系统科学系湖南长沙410073

研究了混合样本线性模型中的M估计,在较弱的矩条件下,获得了M估计是强相合估计的充分条件.与相应结论比较,有了较大的实质性改进.

关键词： P^-混合样本线性模型 M估计强相合性

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Quantitative Proteomic Study on Allotriploid Populus and its Full-sib Diploid Reveal Molecular mechanism of vegetative growth advantage in Populus allotriploid

Quantitative Proteomic Study on Allotriploid Populus and its...

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中国蚕学会2018年学术年会

作者： yi Wang Tong Qiu qiang Han Xiangyang Kang Beijing Advanced Innovation Center for Tree Breeding by Molecular Design Beijing Forestry University National Engineering Laboratory for Tree Breeding Beijing Forestry University College of Biological Sciences and Biotechnology Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of EducationBeijing Forestry University Sericulture ＆ Agri-Food Research Institute Guangdong Academy of Agricultural Sciences

Although plant allotriploid has a prominent vegetative growth advantages, the underlying molecular mechanisms haves not yet been revealed and elucidated. In the present study, a newly synthesized F1 hybrid diploid and two allotriploid populations driven by 2 n female gametes [FDR（First division restitution）, SDR（Second division restitution）] were used. Label-free proteome quantitative method were used to analyze the proteomics divergence between allotriploid and diploid with the same parents in the different leaf positions. The results showed that there were 417 differentially expressed proteins between Populus allotriploid and diploid, including 64 differentially expressed proteins associated with vegetative growth. Functional classification analysis showed that there were 14 differentially expressed proteins（DEPs） related to photosynthetic, 8 DEPs related to starch and sucrose synthesis and metabolism, 14 DEPs associated with respiratory chain, 8 DEPs were involved in TCA cycle. Among them, the β and γ subunit PsbQ NPsbR N, PsbP NRN, Lhca2, Lhca6 FBA, PPDK, PsaE N, PsaL N, F-ATPase, GBSS, Iglg C, UGP2 SS, polysaccharide phosphorylase, NADH-dehydrogenase complex I, cytochrome c reductase,NDUFS4, NDUFV2, NDUFAB1, ATPF0 A0, ATPF0 B, ATPeF 1 E,ATPeV 0 C, ATPeV 1 F, ATPeV 0 C, ATPeV 1 F, OGDH, ACO, IDH1,FBA, GLDC and PPS were upregulated in Populus allotriploid. Some DEPs involved in TCA cycle, amino acid metabolism and carbohydrate metabolism increased with the leave positions and DEPs related to photosynthesis mainly increased first and then decreased. Furthermore, the resistance related proteins mainly showed an increasing *** increased abundance of photosynthetic proteins, enzymes of starch and sucrose metabolism, oxidative phosphorylation respiratory chain assembly proteins and TCA cycle enzymes might promoted the accumulation of carbonhydrate and increased energy metabolism efficiency in allotriploid. In addition, the relative high expression level of stres

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Barrier Lyapunov Function Based Finite-Time Backstepping Control of Quadrotor with Full State Constraints

Barrier Lyapunov Function Based Finite-Time Backstepping Con...

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第37届中国控制会议

作者： Zhongjun Hu qiang Chen yi Hu Cong Chen Data-Driven Intelligent Systems Laboratory College of Information EngineeringZhejiang University of Technology

This paper proposes a Barrier Lyapunov Function（BLF） based finite-time backstepping control of the quadrotor with full states constraints. Firstly, the whole control system is divided into two loops: the inner-loop for the attitude control and the outer-loop for the position control. Secondly, a BLF is constructed to tackle the issue of full state constraints. Then, a finite-time control approach is proposed based on the backstepping technique to ensure that the tracking error converges to zero in finite time. Finally, the simulation results are given to demonstrate the effectiveness of the proposed control method.

关键词： BLF Full state constraints Finite-time back-tepping control

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Amelioration of imiquimod-induced psoriasis-like dermatitis in mice by DSW therapy inspired hydrogel

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Bioactive Materials 2021年第2期6卷 299-311页

作者： Xiang He Bing Zhu WeiJia Xie Yu He jian Song yi Zhang Chi Sun Hao Li QiYu Tang XinXin Sun Yanni Tan Yong Liu State Key Laboratory of Powder Metallurgy Central South UniversityChangsha410083China School of Materials Science and Engineering Central South UniversityChangsha410083China Xiangya School of Medicine Central South UniversityChangsha410083China Department of Material and Chemical Engineering Zhengzhou University of Light IndustryZhengzhou450002China Department of Mechanical Engineering Munich School of BioengineeringTechnical University of Munich85748GarchingGermany Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun130022China Center for Medical Genetics Hunan Key Laboratory of Medical GeneticsSchool of Life SciencesCentral South UniversityChangsha410083China A.James Clark School of Engineering University of MarylandCollege Park20742MDUnited States

Psoriasis is a long-lasting and recurrent autoimmune disease which is incurable so *** Sea water(DSW)therapy is an effective approach to help control the symptoms of psoriasis due to the abundant mineral ions in DSW,which inspired the material formulation in this ***–Sodium alginate/Polyacrylamide hydrogels(Rb-SA/PAAm gels)composed of sodium alginate and polyacrylamide interpenetrating network structure with different concentrations of rubidium and certain magnesium and zinc content were prepared for the treatment of *** obtained results suggest the good mechanical properties of the Rb-SA/PAAm gels including toughness and swelling *** terms of in vitro tests,the Rb-SA/PAAm gels not only show nontoxicity to human keratinocyte cell line(Hacats)but also inhibits the activity against inflammatory NF-κβ signaling ***,they can release Rb+which enable the Rb-SA/PAAm gels have better antibacterial ability to Streptococcus and Escherichia *** results obtained from in vivo tests indicate that these hydrogels could alleviate the symptoms of psoriasis caused by Imiquimod(IMQ)in mice by reducing the inflammatory factor in STAT3 pathway and therefore reduce the immune stimulation of the *** conclusion,the 100Rb-SA/PAAm gel has demonstrated great potential to be a topical wettable dressing for psoriasis treatment.

关键词： DSW therapy Rubidium Hydrogels Imiquimod Psoriasis

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一种基于证据推理的视频运动目标融合检测算法

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控制与决策 2016年第8期31卷 1345-1353页

作者：韩德强程博杨艺西安交通大学智能网络与网络安全教育部重点实验室西安710049 西安交通大学电子与信息工程学院西安710049 西安交通大学机械振动与强度国家重点实验室西安710049 西安交通大学航天航空学院西安710049

为了解决复杂场景下传统的运动目标检测问题,利用证据推理—–谨慎有序加权平均方法(COWA-ER),提出一种综合使用混合高斯、均值滤波和码本的多方法融合的检测方法.该融合检测算法以上述3种检测方法为准则建立一个多准则决策框架,通过双... 详细信息

为了解决复杂场景下传统的运动目标检测问题,利用证据推理—–谨慎有序加权平均方法(COWA-ER),提出一种综合使用混合高斯、均值滤波和码本的多方法融合的检测方法.该融合检测算法以上述3种检测方法为准则建立一个多准则决策框架,通过双阈值检测法来表征检测过程中的不确定性,最终利用COWA-ER方法进行决策级融合,实现多种方法的优势互补.实验表明,所提出的融合检测算法具有更理想的目标检测效果,能有效应对诸如阴影及光照突变等问题对检测性能的影响.

关键词：视频目标检测不确定性 COWA-ER 融合检测多准则决策

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Metrology Challenges in 3D NAND Flash Technical Development and Manufacturing

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Journal of Microelectronic Manufacturing 2020年第1期3卷 9-16页

作者： Wei Zhang Jun Xu Sicong Wang yi Zhou jian Mi Yangtze Memory Technologies Co.Ltd WuhanChina430000

3D NAND technical development and manufacturing face many challenges to scale down their devices,and metrology stands out as much more difficult at each *** planar NAND,3D NAND has a three-dimensional vertical structure with high-aspect *** top-down images is not enough for process control,instead inner structure control becomes much more important than before,*** hole ***,multi-layers,special materials and YMTC unique X-Tacking technology also bring other metrology challenges:high wafer bow,stress induced overlay,opaque film *** development can adopt some destructive methodology(TEM,etch-back SEM),while manufacturing can only use nondestructive *** drive some new metrology development,including X-Ray,mass measure and Mid-IR *** 3D NAND suppliers move to>150 layers devices,the existing metrology tools will be pushed to the ***,the metrology must innovate.

关键词： 3D NAND Metrology Semiconductor HAR Process Control

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Role of surface charge on the interaction between carbon nanodots and human serum albumin

Role of surface charge on the interaction between carbon nan...

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中国化学会第十九届全国化学热力学和热分析学术会议

作者： Zi-qiang Xu Feng-Lei jiang yi Liu School of Materials Science & Engineering Hubei University College of Chemistry and Molecular Sciences Wuhan University

Carbon nanodots（Cdots） have aroused widespread concerns in the field of biomedical applications for their fascinating properties [1].When Cdots are introduced into the biological fluids,the surface of Cdots will be covered by a layer of corona consisted of other biological substances,especially serum proteins [2].Herein,the thermodynamic information of molecular interaction is crucially important for persistent widespread research and practical biomedical application of *** the interaction between Cdots and important biomolecules has already been reported,the role of surface groups on the in vitro interaction between human serum albumin（HSA） and Cdots have rarely been *** this work,the role of surface charge on the interactions between Cdots and HSA has been comprehensively studied through various spectroscopic and electrochemical *** fluorescence of HSA was quenched by both Cdots（negatively charged PEG Cdots and positively charged PEI Cdots） in a charge-independent behavior（dynamic collision）.Moreover,the binding constants of the Cdots with different surface charge associated to HSA were of the same order of ***,PEG Cdots exhibit little influence on the conformation of HSA while high concentration of PEI Cdots would induce obvious conformation changes of *** electrostatic forces dominate the association between HSA and PEI Cdots while the binding of PEG Cdots with HSA was driven by hydrophobic and van der Waals ***,the binding sites between Cdots show obvious charge dependent behavior,namely PEG Cdots effectively occupied the site I of HSA while the binding site of PEI Cdots is mainly located in site Ⅱ.

关键词： Carbon nanodots Surface charge HSA Interaction

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Automatic Detection of Electric Meter Position in Automated Assembly Line Turnover Box

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Journal of Electronic Research and Application 2019年第2期3卷 1-6页

作者： Qian Li jian Wang Xiaotian Ma yi Wang Yonglu Han Electric Power Research Institute of Hebei Electric Power CompanyShijiazhuangHebei 050021

In the process of metering and automatic production system in the measurement and verification of the loading robot,if there is a positional shift of the electric meter,the gripper of the loading robot will mechanically collide with the electric *** to the large force of the loading robot,the appearance of the electric meter is damaged,and the mechanical arm of the loading robot is broken,which reduces the service life of the measuring and verifying equipment,which is not conducive to the continuous and stable operation of the automatic verification *** this paper,an automatic detection system of electric meter position in the turnaround box is proposed,which can reduce the failure rate of the automatic verification system,improve the verification efficiency,reduce the loss of metering assets and the occurrence of safety accidents by realizing the offset detection and correction of the electric meter position in the turnover box.

关键词： turnover box position detection offset data acquisition

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