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Zincophilic Ti_(3)C_(2)Cl_(2)MXene and anti-corrosive Cu NPs for synergistically regulated deposition of dendrite-free Zn metal anode

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Journal of Materials Science & Technology 2024年第2期169卷 137-147页

作者： Yunfei Shen Yi Liu Kaisheng Sun Tiantian Gu Gang Wang Yue Yang Jianxiang Pang Yang zheng xiaodong Yang Long Chen Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003China Institute for Chemistry Chemnitz University of TechnologyChemnitz 09107Germany CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China Key Laboratory of Ecophysics and Department of Physics College of ScienceShihezi UniversityShihezi 832003China

Dendrites growth,chemical corrosion,and hydrogen evolution reaction(HER)on zinc anodes are the main barriers for the development of aqueous zinc-ion batteries(AZIBs).Constructing interfacial protec-tive layer is an effective way to alleviate the side reactions on the ***,Cu/Ti_(3)C_(2)Cl_(2)MXene(CMX)with high zincophilic and hydrophobic property is prepared by the lewis molten salts etching method,and the CMX interface protection layer is constructed by a simple spin *** CMX coat-ing layer can provide abundant nucleation sites and uniformize the charge distribution through the zin-cophilic Ti_(3)C_(2)Cl_(2)MXene matrix,leading to homogenous Zn *** addition,the hydrophobic coat-ing contained anti-corrosive Cu nanoparticles can prevent the Zn anode from the electrolyte,beneficial for suppressing the chemical corrosion and ***,the stable and reversible Zn plating/stripping is achieved for the Zn anode coated by the CMX,which exhibits the lifespan of over 1400 h at 0.5 mA cm^(−2),and even can steadily run for 700 h with 65 mV at 10 mA cm^(−2).Furthermore,CMX@Zn shows a high coulombic efficiency of over 100%for 3800 cycles,which indicates that the CMX@Zn electrode has excellent stability and reversibility of Zn stripping/*** full batteries assembled with ZnCoMnO/C(ZCM)cathodes also exhibits higher capacity(450.6 mAh g^(−1)at 0.1 A g^(−1))and cycle stability(capacity retention of 70%after 1500 cycles).This work enhanced the lifespan of AZIBs and broaden the research of multifunctional coating layer to other secondary batteries based on metal anodes.

关键词： Zinc anode Spin coating Zincophilic MXene Anti-corrosive Cu NPs Multifunctional coating

Studies on a Novel Fibrinolytic Enzyme(Nattokinase)in the Vegetable Cheese Natto

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Journal of Northeast Agricultural University(English Edition) 1998年第1期5卷 55-58页

作者： Xu Zhong, zheng Zhiying, Zhao xiaodong, Cang Jing, Zhao Guohui and Zhang Chaochen (Northeast Agricultural University, Harbin 150030, P R C)

The culture condition of bacillus strain and the extraction method of Nattokinase were reported. The fibrinolytic activity of nattokinese was appraised.

关键词： fibrinolytic enzyme nattokinase thrombin urokinase

Efficient photocatalytic biomass-alcohol conversion with simultaneous hydrogen evolution over ultrathin 2D NiS/Ni-CdS photocatalyst

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Chinese Chemical Letters 2024年第7期35卷 422-427页

作者： Zongyi Huang Cheng Guo Quanxing zheng Hongliang Lu Pengfei Ma zhengzhong Fang Pengfei Sun xiaodong Yi Zhou Chen State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China College of Materials Key Laboratory of High Performance Ceramic Fibers(Xiamen University)Ministry of EducationXiamen UniversityXiamen 361005China Technology Center China Tobacco Fujian Industrial Co.Ltd.Xiamen 361021 China

The photocatalytic conversion of biomass into high-value chemicals,coupled with simultaneous hydrogen(H_(2))evolution,leveraging the electrons and holes generated by solar energy,holds great promise for addressing energy *** this study,we constructed a dual functional photocatalytic system formed by NiS loaded on Ni doped two-dimensional(2D)CdS nanosheet(NiS/Ni-CdSNS)heterostructure for visible-light-driven H_(2)evolution and ethanol oxidation to ***,the 2D NiS/NiCdSNS exhibited significant activity and selectivity in both photocatalytic H_(2)evolution and ethanol oxidation,achieving yields of 7.98 mmol g^(-1)h^(-1)for H_(2)and 7.33 mmol g^(-1)h^(-1)for *** heterogeneous interface of the composite facilitated efficient charge separation,while NiS provided abundant sites for proton reduction,thereby promoting the overall dual-functional photocatalytic *** functional theory calculations further reveal that both Ni doping and NiS loading can reduce the reaction energy barrier of ethanol oxidation of free radicals,and NiS/Ni-CdSNS composite materials exhibit stronger ethanol C-H activation ability to generate key intermediate·CH(OH)CH_(3)on the *** work serves as a valuable guide for the rational design of efficient dual functional photocatalytic systems that combine H_(2)evolution with the selective conversion of organic compounds into high-value chemicals.

关键词： Photocatalysis Biomass-alcohol oxidation H_(2)evolution Dual-functional catalysis

美国临床肿瘤学会关于乳腺癌胚系基因检测的相关建议

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中华乳腺病杂志（电子版） 2024年第4期18卷 255-255页

作者：刘楠(译) 郑晓东(译) 重庆医药高等专科学校附属医院/重庆市沙坪坝区陈家桥医院 401331

乳腺癌的治疗已进入了精准医学时代,基因检测成为乳腺癌精准治疗的必要手段。美国临床肿瘤学会(American Society of Clinical Oncology,ASCO)发布了2024版乳腺癌基因检测指南(Bedrosian I,Somerfield MR,Achatz MI,et *** Testing in Patients With Breast Cancer:ASCO-Society of Surgical Oncology Guideline.J Clin Oncol,2024,42(5):584-604),对于乳腺癌基因检测的规范化有重要意义。

关键词：乳腺肿瘤基因检测

BIODEGRADATION AND MECHANICAL PROPERTIES OF HYDROXYAPATITE/POLY-DL-LACTIDE COMPOSITES FOR FRACTURE FIXATION

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Journal of Wuhan University of Technology(Materials Science) 1998年第4期13卷 9-15页

作者：郭晓东 Xiehe Hospital Tongji Medical University China Department of Orthopaedics Xiehe Hospital Tongji Medical University Wuhan 430022 China Wuhan University of Technology China

The biodegradation and mechanical properties of self-designed hydroxyapatite/poly-DL-lactide (HA/PDLLA) composites were investigated in vitro and in vivo. In vitro, the specimens of HA/PDLLA and unfilled PDLLA with similar molecular weights were immersed in phosphate-buffered saline. Ageing of the various devices were monitored by measuring molecular weight, water absorption, weight loss, PH, mechanical strengths and microstructural changes. The follow-up times were 2, 4, 6, 8, 10 and 12 weeks. In vivo, a transverse transcondylar osteotomy of the distal femur was fixed with a HA/PDLLA rod (diameter, 4.5 mm; length, 30 to approximately 40 mm). The follow-up times were 3, 6 and 12 weeks. Roentgenographic, histologic, and biomechanical studies were carried out. The results show that the HA/PDLLA composites have higher mechanical strength and slower degradation than that of the unfilled PDLLA and that of all osteotomies unite within six weeks without delay. Consequently, the HA/PDLLA composites possess sufficient mechanical strength for the fixation of cancellous osteotomies. (Author abstract) 5 Refs.

关键词： absorbable material hydroxyapatite poly-DL-lactide mechanical strength biodegradation

The expressions and significance of Hpa and bFGF in oral squamous-cell carcinoma

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The Chinese-German Journal of Clinical Oncology 2009年第1期8卷 46-49页

作者： Zhong Chen xiaodong zheng Hongchao Feng Xiamen Medical College Xiamen 361008 China Department of Breast Surgery Chongqing Cancer Hospital Chongqing 400030 China Department of Oral and Maxillary Surgery The Affiliated Hospital of Guiyang Medical College Guiyang 550004 China

Objective： To investigate the expressions of heparanase （Hpa） and basic fibroblast growth factor （bFGF） in oral squamous-cell carcinoma （OSCC）, and to evaluate the relationship between the expressions and tumor angiogenesis and progression. Methods： The expressions of Hpa mRNA and bFGF mRNA of OSCC were examined using in situ hybridization. The microvascular density （MVD） was assessed through immunohistochemistry staining. Results： The expressions of Hpa mRNA and bFGF mRNA were associated with tumor MVD and lymph node metastasis. Concomitant expression of Hpa mRNA and bFGF mRNA was associated with higher tumor MVD as compared with expression of either factor alone. Conclusion： Hpa and bFGF might contribute to the angiogenesis and lymph node metastasis in OSCC and they cooperate in promoting vascularization.

关键词： heparanase (Hpa) basic fibroblast growth factor (bFGF) mouth squamous cell neoplasms

Dynamic characteristics of multi-span spinning beams with elastic constraints under an axial compressive force

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Applied Mathematics and Mechanics(English Edition) 2024年第2期45卷 295-310页

作者： xiaodong GUO Zhu SU Lifeng WANG State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China

A theoretical model for the multi-span spinning beams with elastic constraints under an axial compressive force is *** displacement and bending angle functions are represented through an improved Fourier series,which ensures the continuity of the derivative at the boundary and enhances the *** exact characteristic equations of the multi-span spinning beams with elastic constraints under an axial compressive force are derived by the Lagrange *** efficiency and accuracy of the present method are validated in comparison with the finite element method(FEM)and other *** effects of the boundary spring stiffness,the number of spans,the spinning velocity,and the axial compressive force on the dynamic characteristics of the multi-span spinning beams are *** results show that the present method can freely simulate any boundary constraints without modifying the solution *** elastic range of linear springs is larger than that of torsion springs,and it is not affected by the number of *** an increase in the axial compressive force,the attenuation rate of the natural frequency of a spinning beam with a large number of spans becomes larger,while the attenuation rate with an elastic boundary is lower than that under a classic simply supported boundary.

关键词： multi-span spinning beam elastic constraint improved Fourier series free vibration semi-analytical solution

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印度梨形孢对芹菜的生长及营养品质的影响

中国食品学报 2017年第6期17卷 124-130页

作者：王慧俐郑积荣郑晓冬浙江大学食品科学与营养系浙江农产品加工重点实验室馥莉食品研究院杭州310058 杭州万向职业技术学院环境健康与食品科技系杭州310023 杭州市农业科学研究院杭州310024

本文研究了在温室基质栽培和不施加任何化学肥料的情况下,接种内生真菌印度梨形孢8周后对芹菜生长及营养品质,尤其是矿物元素含量的影响。结果表明,印度梨形孢和芹菜的共生能显著促进芹菜的生长,接种2周和8周后芹菜的茎叶鲜重、根鲜重... 详细信息

本文研究了在温室基质栽培和不施加任何化学肥料的情况下,接种内生真菌印度梨形孢8周后对芹菜生长及营养品质,尤其是矿物元素含量的影响。结果表明,印度梨形孢和芹菜的共生能显著促进芹菜的生长,接种2周和8周后芹菜的茎叶鲜重、根鲜重及植株鲜重分别高于对照50%和70%以上。接种8周后芹菜的产量与对照相比提高了70.7%,植株高度提高了30.2%,分蘖数提高了34.4%。芹菜植株更健壮,色泽更绿。芹菜中的VC含量和可溶性蛋白含量分别高于对照7.9%和15.0%,Ca、Mg、K、Na、Zn和Fe等矿物元素的含量分别比对照高83.8%,50.8%,53.6%,87.7%,37.8%和59.0%,而铜、锰及总黄酮含量和对照没有显著差异。结果表明:印度梨形孢能显著促进芹菜的生长,提高芹菜的营养品质。同时可减少化学肥料的使用,对保障食品安全性具有重要作用。

关键词：芹菜印度梨形孢丛枝菌根真菌营养品质矿物元素

High-Speed Numeral Filter in Impulse Voltage Measurement

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Electricity 2005年第3期16卷 37-41页

作者： zheng xiaodong Wu Weining Huang Xinghan Wang Min Huazhong University of Science and Technology Wuhan High Voltage Research Institute

Since the CPU of embed system has some limitation in operating speed, a new filter was put forward which implemented mountain template convolution by performing rectangle template convolution two times. It can obtain time and frequency localization with computational complexity greatly reduced. This algorithm was applied to lightning waveforms (include chopped waveforms) parameter calculation. It simplifies the computation and the results pretreated by this algorithm are in accord with IEC1083-2 completely. It was applied in embed system successfully. Its capability in frequency restraining was researched. The validity of the algorithm was proved in theory when processing lightning waves. The standard sources and the processing results are consistent completely.

关键词： convolution numeral filter impulse wave time and frequency localization wavelet