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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 2943-2958页

作者： Liu-bin SONG Tian-yuan LONG Min-zhi XIAO Min LIU ting-ting zhao Yin-jie KUANG Lin JIANG Zhong-liang XIAO College of Chemistry and Chemical Engineering Changsha University of Science and TechnologyChangsha 410114China Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation Changsha University of Science and TechnologyChangsha 410114China College of New Energy Ningbo University of TechnologyNingbo 315336China

A composite solid electrolyte comprising a Cu-Al bimetallic metal-organic framework(CAB),lithium salt(LiTFSI)and polyethylene oxide(PEO)was fabricated through molecular grafting to enhance the ionic conductivity of the PEO-based *** and molecular dynamics simulation results indicated that the electrolyte with 10 wt.%CAB(PL-CAB-10%)exhibits high ionic conductivity(8.42×10~(-4)S/cm at 60℃),high Li+transference number(0.46),wide electrochemical window(4.91 V),good thermal stability,and outstanding mechanical ***,PL-CAB-10%exhibits excellent cycle stability in both Li-Li symmetric battery and Li/PL-CAB-10%/LiFePO4 asymmetric battery *** enhanced performances are primarily attributable to the introduction of the versatile *** abundant metal sites in CAB can react with TFSI~-and PEO through Lewis acid-base interactions,promoting LiTFSI dissociation and improving ionic ***,regular pores in CAB provide uniformly distributed sites for cation plating during cycling.

关键词： polyethylene oxide Cu−Al bimetallic metal-organic framework solid lithium metal battery molecular grafting ionic conductivity

Surface characteristics,corrosion behavior,and antibacterial property of Ag-implanted NiTi alloy

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Rare Metals 2013年第2期32卷 113-121页

作者： Peng Luo Sheng-Nan Wang ting-ting zhao Yan Li School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology Beijing University of Aeronautics and Astronautics

NiTi shape memory alloy was modified by Ag ion implantation with different incident doses to improve its antibacterial property. The atomic force microscopy, auger electron spectroscopy, and X-ray photoelectron spectroscopy show that the surface of NiTi alloy is covered by TiO2 nano-film with embedded pure Ag with a peak concentration of 5.0 at% at the incident dose of 1.5 x10^17 ***-a, and Ni concentration is reduced in the super- ficial surface layer. The surface roughness reaches the maximum value nearly twice higher than the control sample at the incident dose of 1.5x10^17 ***-2. The potentiodynamic anodic polarization curves show that the Ag-implanted NiTi samples possess higher self-corrosion potential （Ecorr） and lower self-corrosion current density （icor0 but lower breakdown potential （Ebr）. Therefore, the corrosion resistance of the Ag-NiTi is comparable to, if not better than, the untreated NiTi. The antibacterial tests reveal that there is a distinct reduction of the germ numbers on the Ag-NiTi, which is due to the direct contact between Ag and germ, and enhanced by the leaching Ag ions.

关键词： NiTi Ag Ion implantation Corrosionresistance Antibacterial property

Enhanced wear resistance of NiTi alloy by surface modification with Nb ion implantation

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Rare Metals 2014年第3期33卷 244-248页

作者： Yan Li Fei Zhang ting-ting zhao Ming Tang Yong Liu School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing Key Laboratory for Advanced Functional Materials andThin Film Technology Beijing University of Aeronautics and Astronautics Key Laboratory of Aerospace Advanced Materials and Performance (Beijing University of Aeronautics and Astronautics) Ministry of Education School of Mechanical and Aerospace Engineering Nanyang Technological University

Niobium ion implantation is found to significantly decrease the friction coefficient and improve wear resistance of NiTi shape memory alloy. Scanning electron microscope（SEM） observations indicate that surface grooves formed on NiTi during the mechanical polishing are removed after Nb ion implantation. Dry friction tests show that Nb implanted NiTi samples exhibit a lower friction coefficient, narrower wear tracks, fewer wear debris generated, 46 %-62 % reduction in wear width, and29 %-49 % reduction in wear depth compared with the untreated NiTi. Wear resistance is related to the incident parameters, and the Nb implanted NiTi with the incident dose of 2.5 9 1017ionsácm-2, and incident current of2 mA behaves the best wear performance. The lubricating of Nb2O5, good oxidation resistance of Nb in NiTi, and increased micro-hardness of NiTi are responsible for the enhanced wear resistance.

关键词： NiTi Nb Ion implantation Nano-film Wear

Effect of thermal oxidation on the surface characteristics and corrosion behavior of a Ta-implanted Ti-50.6Ni shape memory alloy

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International Journal of Minerals,Metallurgy and Materials 2012年第12期19卷 1134-1141页

作者： Sheng-nan Wang Yan Li ting-ting zhao School of Materials Science and Engineering Beihang University Beijhag 100191 China Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology Beihang University Beijing 100191 China Key Laboratory of Aerospace Materials and Performance (Ministry of Education) Beihang University Beijing 100191 China

A NiTi shape memory alloy （SMA） modified by Ta ion implantation was subjected to oxidation treatment in air at 723 and 873 K. Atomic force microscopy （AFM）, Auger electron spectroscopy （AES）, and grazing incidence X-ray diffraction （GIXRD） measurements were conducted to investigate the surface characteristics, including surface topography, elemental depth profiles, and surface phase structures. The surface roughness of the Ta-implanted NiTi increases after oxidation, and the higher the oxidation temperature is, the larger the value is. The surface of the Ta-implanted NiTi oxidized at 723 K is a nanolayer mainly composed of TiO2/Ta2O5 and TiO with depressed Ni content. The Ta-implanted NiTi oxidized at 873 K is mainly covered by rutile TiO2 in several micrometers of thickness. Potentiodynamic polarization tests indicated that the corrosion resistance of the Ta-implanted NiTi was improved after thermal oxidation at 723 K, but a negative impact was found for the Ta-implanted NiTi oxidized at 873 K.

关键词： nickel alloys titanium alloys shape memory effect ion implantation oxidation corrosion resistance

Effective Virtual Reality Based Building Navigation Using Dynamic Loading and Path Optimization

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International Journal of Automation and computing 2009年第4期6卷 335-343页

作者： Qing-Jin Peng Xiu-Mei Kang ting-ting zhao Department of Mechanical and Manufacturing Engineering University of Manitoba Winnipeg R3T 5V6 Canada

Although computer capabilities have been improved significantly, a large-scale virtual reality （VR） system demands much more in terms of memory and computation than the current computer systems can offer. This paper discusses two important issues related to VR performance and applications in building navigation. These are dynamic loading of models based on cell segmentation for the optimal VR operation, and the route optimization based on path planning for easy navigation. The VR model of engineering and information technology complex （EITC） building at the University of Manitoba is built as an example to show the feasibility of the proposed methods. The reality, enhanced by three-dimensional （3D） real-time interactivity and visualization, leads navigators into a state of the virtual building immersion.

关键词： Virtual reality (VR) virtual environments (VEs) building navigation dynamic loading cell segmentation path planning

One-step synthesis of Cu(Ⅱ) metal–organic gel as recyclable material for rapid, efficient and size selective cationic dyes adsorption

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Journal of Environmental Sciences 2019年第12期31卷 203-212页

作者： Qing Wu Li He Zhong Wei Jiang Yang Li ting ting zhao Yu Han Li Cheng Zhi Huang Yuan Fang Li Key Laboratory of Luminescent and Real-Time Analytical Chemistry(Southwest University) Ministry of EducationSchool of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China College of Pharmaceutical Science Soiithiuest UniuersityChongqing 400715China College of Science Beihua UniversityJilin 132013China

Efficient removal of non-biodegradable and hazardous dyes from wastewater remains a hot research ***,a rationally designed a Cu(Ⅱ)-based metal–organic gel(Cu-MOG)with a nanoporous 3 D network structure prepared via a simple one-step mixing method was successfully employed for the removal of cationic *** Cu-MOG exhibited high efficiency,with an adsorption capacity of up to 650.32 mg/g,and rapid adsorption efficiency,with the ability to adsorb 80%of Neutral Red within 1 *** high adsorption efficiency was attributed to its large specific surface area,which enabled it to massively bind cationic dyes through electrostatic interaction,and a nanoporous structure that promoted intra-pore ***,the Cu-MOG displayed size-selective adsorption,based on adsorption studies concerning dyes of different sizes as calculated by density functional ***,the adsorption performance of the Cu-MOG still maintained removal efficiency of 100%after three regeneration *** results suggested that the Cu-MOG could be expected to be a promising and competitive candidate to conveniently process wastewater.

关键词： Cu(Ⅱ)-based metal–organic gel Electrostatic interaction Intraporous diffusion Dyes removal Size selective

Ethanol extract from Gynostemma pentaphyllum ameliorates dopaminergic neuronal cell death in transgenic mice expressing mutant A53T human alpha-synuclein

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Neural Regeneration Research 2020年第2期15卷 361-368页

作者： Hyun Jin Park ting ting zhao Seung Hwan Kim Chong Kil Lee Bang Yeon Hwang Kyung Eun Lee Myung Koo Lee Department of Pharmacy College of PharmacyChungbuk National UniversityCheongjuRepublic of Korea 2Research Center for Bioresource and Health College of PharmacyChungbuk National UniversityCheongjuRepublic of Korea Department of Social Physical Education Songwon UniversityGwangjuRepublic of Korea

Gynostemma(G.) pentaphyllum(Cucurbitaceae) contains various bioactive gypenosides. Ethanol extract from G. pentaphyllum(GP-EX) has been shown to have ameliorative effects on the death of dopaminergic neurons in animal models of Parkinson’s disease(PD) induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-and 6-hydroxydopamine. PD patients exhibit multiple symptoms, so PD-related research should combine neurotoxin models with genetic models. In the present study, we investigated the ameliorative effects of GP-EX, including gypenosides, on the cell death of dopaminergic neurons in the midbrain of A53 T α-synuclein transgenic mouse models of PD(A53 T). Both GP-EX and gypenosides at 50 mg/kg per day were orally administered to the A53 T mice for 20 weeks.α-Synuclein-immunopositive cells and α-synuclein phosphorylation were increased in the midbrain of A53 T mice, which was reduced following treatment with GP-EX. Treatment with GP-EX modulated the reduced phosphorylation of tyrosine hydroxylase, extracellular signal-regulated kinase(ERK1/2), Bcl-2-associated death promoter(Bad) at Ser112, and c-Jun N-terminal kinase(JNK1/2) due to α-synuclein overexpression. In the A53 T group, GP-EX treatment prolonged the latency of the step-through passive avoidance test and shortened the transfer latency of the elevated plus maze test. Gypenosides treatment exhibited the effects and efficacy similar to those of GP-EX. Taken together, GP-EX, including gypenosides, has ameliorative effects on dopaminergic neuronal cell death due to the overexpression of α-synuclein by modulating ERK1/2, Bad at Ser112, and JNK1/2 signaling in the midbrain of A53 T mouse model of PD. Further studies are needed to investigate GP-EX as a treatment for neurodegenerative synucleinopathies, including PD. This study was approved by the Animal Ethics Committee of Chungbuk National University(approval No. CBNUA-956-16-01) on September 21, 2016.

关键词： A53T α-synuclein genetic mice ERK1/2 gynostemma pentaphyllum gypenosides Parkinson’s disease retention transfer latency time

Enriched environment enhances histone acetylation of NMDA receptor in the hippocampus and improves cognitive dysfunction in aged mice

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Neural Regeneration Research 2020年第12期15卷 2327-2334页

作者： Xin Wang zhao-Xiang Meng Ying-Zhu Chen Yu-Ping Li Hong-Yu Zhou Man Yang ting-ting zhao Yu-Lai Gong Yi Wu Tao Liu Department of Rehabilitation Medicine Huashan HospitalFudan UniversityShanghaiChina Department of Rehabilitation Clinical Medical CollegeYangzhou UniversityYangzhouJiangsu ProvinceChina Department of Rehabilitation First Affiliated HospitalDalian Medical UniversityDalianLiaoning ProvinceChina Department of Rehabilitation Medicine Sichuan Provincial Rehabilitation Hospital Affiliated to Chengdu University of TCMChengduSichuan ProvinceChina South China Research Center for Acupuncture and Moxibustion Medical College of Acu-Moxi and RehabilitationGuangzhou University of Chinese MedicineGuangzhouGuangdong ProvinceChina

The mechanisms of age-associated memory impairment may be associated with glutamate receptor function and chromatin *** observe the effect of an enriched environment on the cognitive function of mice with age-associated memory impairment,3-monthold C57BL/6 male mice("young"mice)were raised in a standard environment,while 24-month-old C57BL/6 male mice with memory impairment("age-associated memory impairment"mice)were raised in either a standard environment or an enriched *** enriched environment included a variety of stimuli involving movement and sensation.A water maze test was then used to measure cognitive function in the ***,quantitative real-time polymerase chain reaction and western blot assays were used to detect right hippocampal GluN2B mRNA as well as protein expression of GluN2B and CREB binding protein in all *** addition,chromatin immunoprecipitation was used to measure the extent of histone acetylation of the hippocampal GluN2B gene *** with the young mice,the water maze performance of age-associated memory impairment mice in the standard environment was significantly *** addition,there were significantly lower levels of total histone acetylation and expression of CREB binding protein in the hippocampus of age-associated memory impairment mice in the standard environment compared with the young *** were also significantly lower levels of histone acetylation,protein expression,and mRNA expression of GluN2B in the hippocampus of these *** contrast,in the age-associated memory impairment mice with the enriched environment intervention,the water maze performance and molecular biological indexes were significantly *** data confirm that an enriched environment can improve cognitive dysfunction in age-associated memory impairment mice,and suggest that the mechanisms may be related to the increased expression of CREB binding protein and the increased degree of total histone a

关键词： brain central nervous system factor in vitro model mice recovery regenerations protein

Causal Analysis Between Rice Growth and Cadmium Accumulation and Transfer under Arbuscular Mycorrhizal Inoculation

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Rice science 2024年第2期31卷 226-236页

作者： zhao ting WANG Li YANG Jixian MA Fang State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

Cadmium(Cd)contamination in rice has been a serious threat to human *** investigate the effects of arbuscular mycorrhizal fungi(AMF)on the Cd translocation in rice,a controlled pot experiment was *** results indicated that AMF significantly increased rice biomass,with an increase of up to 40.0%,particularly in root biomass by up to 68.4%.Notably,the number of prominent rice individuals also increased,and their plasticity was enhanced following AMF *** led to an increase in the net photosynthetic rate and antioxidant enzyme activity of *** the AMF treatment group,the Cd concentration in the rice roots was significantly higher(19.1%‒68.0%)compared with that in the control ***,the Cd concentration in the rice seeds was lower in the AMF treatment group,indicating that AMF facilitated the sequestration of Cd in rice roots and reduced Cd accumulation in the *** coefficients varied across different treatments,suggesting that AMF inoculation reduced the direct impact of soil Cd concentration on the total Cd accumulation in *** translocation of Cd was consistently associated with simultaneous growth dilution and compensatory accumulation as a result of mycorrhizal *** study quantitatively analyzed this process through path analysis and clarified the causal relationship between rice growth and Cd transfer under the influence of AMF.

关键词： cadmium transfer dilution effect heavy metal immobilization mycorrhizal effect path analysis phenotypic plasticity

Electronic modulation of sprout-shaped NiCoP nanoarrays by N and Ce doping for efficient overall water splitting

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Nano Research 2024年第1期17卷 282-289页

作者： ting zhao Guancheng Xu Bingbing Gong Jiahui Jiang Li Zhang State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830017China College of Chemical Engineering Xinjiang UniversityUrumqi 830017China

Bifunctional catalysts for hydrogen/oxygen evolution reactions(HER/OER)are urgently needed given the bright future of water splitting hydrogen production ***,the self-supporting N and Ce dual-doped NiCoP nanoarrays(denoted N,Ce-NiCoP/NF)grown on Ni foam are successfully *** the N,Ce-NiCoP/NF simultaneously acts as the HER and OER electrodes,the voltages of 1.54 and 2.14 V are obtained for driving 10 and 500 mA·cm^(-2)with a robust durability,and demonstrate its significant potential for practical water *** to both experiments and calculations,the electronic structure of NiCoP may be significantly altered by strategically incorporating N and Ce into the lattice,which in turn optimizes the Gibbs free energy of HER/OER intermediates and speeds up the water splitting ***,the sprout-shaped morphology significantly increases the exposure of active sites and facilitates charge/mass transfer,thereby augmenting catalyst *** study offers a potentially effective approach involving the regulation of anion and cation double doping,as well as architectural engineering,for the purpose of designing and optimizing innovative electrocatalysts.

关键词： transition metal phosphides overall water splitting elements doping nanoarrays