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Effect of Carbon Particles with Different Topological Shape on the Rheological Behavior of PVA Aqueous Dispersion

Chinese Journal of Polymer Science 2022年第11期40卷 1402-1410页

作者： qing-sheng ni Miao Du Guo-Rong Shan Yi-Hu Song Qiang Zheng State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China Institute of Zhejiang University-Quzhou Quzhou324000China Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China

Poly(vinyl alcohol)(PVA)is usually processed and used in a form of aqueous dispersion.A large number of inter-and intramolecular hydrogen bonds make it very difficult to obtain suitable rheological behavior for *** this study,carbon particles with different topological shapes were added into PVA aqueous dispersion to tune the steady and dynamic rheological *** results show that the zero-dimensional particles(carbon black,CB)increase monotonically the zero-shear viscosity of PVA dispersion,while the one-dimensional particles(carbon nanotubes,CNTs)make it first increase,and then decrease and rise again,like an N-shape,and the two-dimensional particles(graphene oxide,GO)can make it first decrease and then increase,exhibiting a *** is believed that the topological shape of the carbon particles brought about these *** zero-dimensional particles mainly act as physical crosslinking points due to their small *** at a certain content,both CNTs and GO can destroy the intermolecular hydrogen bonds between PVA chains because the PVA chains can twine around the slim CNTs and the large planar size of GO prevents the adsorbed PVA from forming hydrogen bond with other *** high hydroxyl value of carbon particle surface could strengthen this *** is expected that the viscosity of polymer dispersion can be regulated by particles with different topological shape and the surface characteristic,so as to widen the operable concentration range during preparing composite functional materials.

关键词： Topological shape Hydrogen bond Rheological behavior PVA aqueous dispersion

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Preparation of FeConi medium entropy alloy from Fe^(3+)-Co^(2+)-ni^(2+)solution system

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 92-101页

作者： Zongyou Cheng qing Zhao Mengjie Tao Jijun Du Xingxi Huang Chengjun Liu Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies for Low-carbon Steelmaking(Ministry of Education) Shenyang 110819China

In recent years,medium entropy alloys have become a research hotspot due to their excellent physical and chemical *** controlling reasonable elemental composition and processing parameters,the medium entropy alloys can exhibit similar properties to high entropy alloys and have lower *** this paper,a FeConi medium entropy alloy precursor was prepared via sol-gel and coprecipitation methods,respectively,and FeConi medium entropy alloys were prepared by carbothermal and hydrogen *** phases and magnetic properties of FeConi medium entropy alloy were *** showed that FeConi medium entropy alloy was produced by carbothermal and hydrogen reduction at 1500℃.Some carbon was detected in the FeConi medium entropy alloy prepared by carbothermal *** alloy prepared by hydrogen reduction was uniform and showed a relatively high ***,the hydrogen reduction product exhibited better saturation magnetization and lower coercivity.

关键词： medium entropy alloy sol-gel co-precipitation carbothermal hydrogen reduction

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7吨轻型卡车制动跑偏的研究

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汽车科技 2017年第2期 50-54,59页

作者：梁荣朝尹华清倪盛开刘俊荣浙江吉利新能源商用车有限公司杭州311228

基于Adams/car建立了前悬架模型,仿真悬架获得车轮转向角评价,评价是否会跑偏并优化。建立整车模型,仿真获得主销后倾角不对称的直线制动工况下的制动跑偏量,分析并优化悬架和转向系结构,解决该车制动跑偏问题。

关键词：制动跑偏主销后倾角不对称

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Reciprocal Regulation between Fur and Two RyhB Homologs in Yersinia pestis,and Roles of RyhBs in Biofilm Formation

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Biomedical and Environmental Sciences 2021年第4期34卷 299-308页

作者： ni Bin WU Hai sheng XIN You Quan ZHANG qing Wen ZHANG Yi Quan School of Medicine Jiangsu UniversityZhenjiang 212013JiangsuChina qinghai Institute for Endemic Disease Prevention and Control Xining 811602QinghaiChina Wuxi School of Medicine Jiangnan UniversityWuxi 214122JiangsuChina

Objective To investigate reciprocal regulation between Fur and two RyhB homologs in Yersinia pestis(***),as well as the roles of RyhBs in biofilm *** Regulatory relationships were assessed by a combination of colony morphology assay,primer extension,electrophoretic mobility shift assay and DNase I *** Fur bound to the promoter-proximal DNA regions of ryhB1 and ryhB2 to repress their transcription,while both RyhB1 and RyhB2 repressed the expression of Fur at the post-transcriptional *** addition,both RyhB1 and RyhB2 positively regulated *** biofilm exopolysaccharide(EPS)production and the expression of hmsHFRS and *** Fur and the two RyhB homologs exert negative reciprocal regulation,and RyhB homologs have a positive regulatory effect on biofilm formation in ***.

关键词： Yersinia pestis RyhB Fur Biofilm

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Collision-induced Rotational Energy Transfer in an Atom-Diatom System

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Chinese Journal of Chemical Physics 2008年第5期21卷 457-462页

作者： Yan-qing ni Jian Li Feng-cai Ma Department of Physics Liaoning University Shenyang 110036 China Department of Science Shenyang Institute of Aeronautical Engineering Shengyang 110036 China

As a further theoretical study of the collision-induced quantum interference on rotational energy transfer in an atom-diatom system, based on the first-Born approximation of time-dependent perturbation theory, taking into account the anisotropic Lennard-Jones interaction potential and the long-range interaction potential, the differential interference angles in singlet-triplet mixed states of CO A^1Π（v=9）-e3∑-（v=1） system in collision with He, Ne, Ar, and other partners were calculated theoretically. The relationships of differential interference angle versus impact parameters, including collision parameter b and velocity, are obtained.

关键词： Rotational energy transfer Collision-induced quantum interference Interference angle

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Protective effect of Shouwu Yizhi decoction against vascular dementia by promoting angiogenesis

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Chinese Journal of Natural Medicines 2017年第10期15卷 740-750页

作者： YANG Xiao-ni LI Chang-sheng CHEN Chao TANG Xiao-Yong CHENG Guang-qing LI Xia Department of Tranditional Chinese Medicine Shandong Qianfoshan Hospital Jinan 250014 China Department of Internal Medicine Ⅷ Shandong Tumor Hospital Jinan 250014 China Key Laboratory for Tumor Immunology and Traditional Chinese Medicine Immunology Institute of Basic Medicine Shandong Academy of Medical Sciences Jinan 250062 China

Shouwu is a traditional Chinese medicine(TCM)with neuroprotective *** Yizhi decoction(SYD)was designed based on TCM ***,little is known about the roles of SYD in Vascular dementia(Va D).The present study aimed to evaluate the potential effects of SYD on the vascular cognitive impairment and explore the underlying mechanism by establishing focal cerebral ischemia/reperfusion(I/R)rat model to induce Va *** administration(54 mg·kg^(-1))for 40 days obviously improved the vascular cognitive impairment in the middle cerebral artery occlusion(MCAO)rats as evidenced by the declined neurological deficit score and shortened escape latency via neurological deficit assessment and Morris water maze ***,SYD decreased neuron damage-induced cell death and ameliorated the ultrastructure of endothelial cells in the MCAO rats,thereby alleviating Va ***,SYD caused increases in the expression of vascular endothelial growth factor(VEGF),CD34 and CD31,compared with the MCAO rats in coronal ***,the expression level of mi R-210 was elevated significantly after SYD administration,compared with the vehicle rats(Pnistration compared with the vehicle rats(Pnition and memory of MCAO ***,our findings preliminarily identified the effect and the mechanism of action for SYD on Va D in *** could be a potential candidate in treatment of Va D.

关键词： Shouwu Yizhi decoction Vascular dementia Angiogenesis VEGF-Notch signaling pathway

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A DFT study of the CO adsorption and oxidation at ZnO surfaces and its implication for CO detection

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Chinese Chemical Letters 2020年第6期31卷 1674-1679页

作者： Zibin ni Shenyuan Bao Xue-qing Gong Key Laboratory for Advanced Materials Centre for Computational Chemistry and Research Institute of Industrial CatalysisSchool of Chemistry&Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China

Recently,ZnO-based gas sensors have been successfully fabricated and widely studied for their excellent sensitivity and selectivity,especially in CO ***,detailed explorations of their mechanisms are rather ***,aiming at clarifying the sensing mechanism,we carried out density functional theory(DFT)calculations to track down the CO adsorption and oxidation on the ZnO(1010)and(1120)*** calculated results show that the lattice O of ZnO(1010)is more reactive than that of ZnO(1120)for CO *** the calculated energetics and structures,the main reaction product on both surfaces can be determined to be CO2 rather than ***,the surface conductivity changes during the adsorption and reaction processes of CO were also *** both ZnO(1010)and(1120),the conductivity would increase upon CO adsorption and decrease following CO oxidation,in consistence with the reported experimental *** work can help understand the origins of ZnO-based sensors’performances and the development of novel gas sensors with higher sensitivity and selectivity.

关键词： Density functional theory ZnO Gas sensor CO oxidation Surface conductivity

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Quantum Radiative Correction on the Mass of Electron in a Cavity

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Chinese Physics Letters 1997年第1期14卷 9-12页

作者： ni Guang-jiong CHEN Su-qing Department of Physics Fudan UniversityShanghai 200433

When an electron is moving through a cavity,its mass is modified due to the boundary effect on the virtual *** shift of self energy is calculated at the one loop level by means of Plana formula to yield analytical res... 详细信息

关键词： Electron boundary moving

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Vortex 4.0 on chip

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Light(Science & Applications) 2020年第1期9卷 1025-1027页

作者： qing Zhang Jincheng ni Cheng-Wei Qiu Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore

The orbital angular momentum(OAM)of light has promising applications,ranging from information multiplexing and high-speed optical communication to *** tunable and switchable vortex microlasers combined with direct photocurrent detection of the topological charges of OAM states have paved unexplored routes for the development and integration of fourth-generation(4.0)vortex technology,potentially on chip.

关键词： OAM tunable multiplexing

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Visible-light-mediated tungsten-catalyzed C-H amination of unactivated alkanes with nitroarenes

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Science China Chemistry 2022年第4期65卷 678-685页

作者： qing Wang shengyang ni Xiaochen Wang Yi Wang Yi Pan State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Alkylamines are important motifs in pharmaceutical and material *** existing reports of C-H amination are limited to ammonia,diazo and azide nitrogen *** work describes a rapid construction of C-N bonds from accessible nitroarene and alkane feedstock under decatungstate catalysis.A variety of C-H precursors including gaseous,linear,cyclic and benzylic hydrocarbons could adopt this protocol to afford the corresponding alkylamines in high efficiency.

关键词： amination photoredox light alkane nitrobenzene

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