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Rare Metals 2024年第10期43卷 5030-5038页

作者： Jia-Hao Xu You-Huan zhu wei-min Yang Hua Cheng Zhou-Guang Lu Industrial Training Center Shenzhen Polytechnic UniversityShenzhen 518055China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China School of Materials Science and Environmental Engineering Shenzhen Polytechnic UniversityShenzhen 518055China

It is a difficult challenge to simultaneously employ the cationic and anionic redox chemistry in cathode materials for sodium-ion batteries with high *** though layered oxides(classified as two-dimensional oxides)demonstrate excellent promise in the high discharge capacity,their poor oxygen transformation via redox reactions is limited by crystal ***,a doping strategy was conceived to tackle this issue and increase redox efficiency.K doping was applied to transform the two-dimensional Na_(1.3)Mn_(0.7)O_(2)(NMO)to threedimensional K_(0.2)Na_(1.3)Mn_(0.5)O_(2)(KNMO),preventing the irreversible phase shift and preserving the crystal structure’s stability while *** this modification treatment,KNMO features manganese and oxygen reactive sites,delivering a promising energy density of 190mAh·g^(-1)at 5 mA·g^(-1)in the 2.0–4.5 V voltage range(vs71.4 mAh·g^(-1)for the pristine NMO).Moreover,it displays improved capacity retention of more than 83.5%after 50cycles at 50 mA·g^(-1).The results demonstrated that doped intercalation oxides were promising for redox oxygen transformation in sodium-ion batteries.

关键词： High-performance cathode Metal ion dopings Sodium-ion batteries Three-dimensional structure

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1-萘酚的太赫兹光谱实验及理论研究

原子与分子物理学报 2025年第4期42卷 33-39页

作者：王利民朱立江孙延华国家能源集团煤焦化有限责任公司乌海016000

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平... 详细信息

1-萘酚是煤化工产物萘的合成产物,对环境和人体健康有危害.采用太赫兹时域光谱(THz-TDS)技术,获得了1-萘酚在0.5~4.0 THz范围内的实测太赫兹吸收谱,同时运用密度泛函理论(DFT)平面波赝势模型对1-萘酚晶胞模型进行理论光谱计算,探讨了平面波截断能在800~1600 eV范围内对理论光谱的影响,并对吸收峰的振动模式进行了理论归属.实验结果表明,1-萘酚在0.5~4.0 THz范围内有1.14 THz、1.60 THz、2.16 THz、2.81 THz、3.56 THz共5个吸收峰,平面波截断能1400 eV下得到的理论吸收谱与实测吸收谱在吸收峰个数、峰位、归一化峰强度上均有较好的一致性,5个吸收峰的振动模式均是以两元环为平面的受氢键束缚的面外摇摆振动或者面内扭转振动引起的.这为太赫兹技术对1-萘酚的识别提供了实验和理论基础,具有一定的理论意义和实际应用价值.

关键词：太赫兹密度泛函理论(DFT) 理论光谱 1-萘酚

维普期刊数据库博看期刊

Environmental enrichment in combination with Bifidobacterium breve HNXY26M4 intervention amplifies neuroprotective benefits in a mouse model of Alzheimer's disease by modulating glutamine metabolism of the gut microbiome

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Food Science and Human Wellness 2024年第2期13卷 982-992页

作者： Guangsu zhu min Guo Jianxin Zhao Hao Zhang Gang Wang wei Chen State Key Laboratory of Food Science and Resources Jiangnan UniversityWuxi 214122China School of Food Science and Technology Jiangnan UniversityWuxi 214122China (Yangzhou)Institute of Food Biotechnology Jiangnan UniversityYangzhou 225004China National Engineering Center of Functional Food Jiangnan UniversityWuxi 214122China

The gut microbiota-brain axis has emerged as a novel target for Alzheimer's disease(AD),a neurodegenerative disease characterised by behavioural and cognitive ***,most previous microbiome-based intervention studies have focused on single factors and yielded only modest cognitive ***,we proposed a multidomain intervention strategy that combined Bifidobacterium breve treatment with environmental enrichment(EE)*** this study,we found that compared with EE or *** treatment alone,*** intervention combined with EE amplified its neuroprotective effects on AD mice,as reflected by improved cognition,inhibited neuroinflammation and enhanced synaptic ***,using microbiome and metabolome profiling,we found that the combination of *** and EE treatment restored AD-related gut microbiota dysbiosis and reversed microbial metabolite ***,by integrating behavioural and neurological data with metabolomic profiles,we revealed that the underlying mechanism may involve the modulation of microbiota-derived glutamine metabolism via gut-brain ***,combined *** intervention with EE treatment can alleviate AD-related cognitive impairment and improve brain function by regulating glutamine metabolism of the gut *** findings provide a promising multidomain intervention strategy,with a combination of dietary microbiome-based and lifestyle-targeted interventions,to promote brain function and delay the progression of AD.

关键词： Alzheimer’s disease Bifidobacterium breve Environmental enrichment Glutamine metabolism Microbiota-gut-brain axis

湖南岳阳罗城遗址2021年度出土铁器科学分析研究

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有色金属（冶炼部分） 2025年第1期 164-171页

作者：邹桂森毕军涛盛伟朱谨韦星星广西民族大学科技史与科技文化研究院南宁530006 国家文物局考古研究中心北京100009 安徽大学历史学院合肥230039 湖南省文物考古研究院长沙410011

罗城遗址是湖南岳阳一座重要的东周时期城址,考古单位已对其进行了多次发掘。在2021年度考古发掘中,出土了少量铁器,采用金相分析对出土10件铁器进行科学研究。结果显示,铁器材质可分为白口铁、脱碳铸铁、韧性铸铁和铸铁脱碳钢。结合湖... 详细信息

罗城遗址是湖南岳阳一座重要的东周时期城址,考古单位已对其进行了多次发掘。在2021年度考古发掘中,出土了少量铁器,采用金相分析对出土10件铁器进行科学研究。结果显示,铁器材质可分为白口铁、脱碳铸铁、韧性铸铁和铸铁脱碳钢。结合湖南先秦时期出土铁器试验分析及罗城遗址发掘情况,初步揭示了在战国中晚期,该遗址居民已掌握了较成熟的生铁脱碳乃至生铁制钢技术,为研究楚文化的冶金技术提供了重要材料。

关键词：冶金考古岳阳罗城铁器科学分析

Corrosion behavior of low alloy steels in a wet–dry acid humid environment

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International Journal of minerals,Metallurgy and Materials 2016年第9期23卷 1076-1086页

作者： Qing-he Zhao wei Liu Jian-wei Yang Yi-chun zhu Bin-li Zhang min-xu Lu Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Shougang Research Institute of Technology Beijing 100043China

The corrosion behavior of corrosion resistant steel（CRS） in a simulated wet–dry acid humid environment was investigated and compared with carbon steel（CS） using corrosion loss, polarization curves, X-ray diffraction（XRD）, scanning electron microscopy（SEM）, electron probe micro-analysis（EPMA）, N2 adsorption, and X-ray photoelectron spectroscopy（XPS）. The results show that the corrosion kinetics of both steels were closely related to the composition and compactness of the rust, and the electrochemical properties of rusted steel. Small amounts of Cu, Cr, and Ni in CRS increased the amount of amorphous phases and decreased the content of γ-Fe OOH in the rust, resulting in higher compactness and electrochemical stability of the CRS rust. The elements Cu, Cr, and Ni were uniformly distributed in the CRS rust and formed CuFeO2, Cu2O, CrOOH, NiFe2O4, and Ni2O3, which enhanced the corrosion resistance of CRS in the wet–dry acid humid environment.

关键词： low alloy steel steel corrosion rust polarization curves corrosion resistance

Image feature optimization based on nonlinear dimensionality reduction

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第12期10卷 1720-1737页

作者： Rong zhu min YAO School of Computer Science and Technology Zhejiang University Hangzhou 310027 China School of lnformation Engineering Jiaxing University Jiaxing 314001 China State Key Laboratory for Novel Software Technology Nanjing University Nanjing 210093 China

Image feature optimization is an important means to deal with high-dimensional image data in image semantic understanding and its applications. We formulate image feature optimization as the establishment of a mapping between highand low-dimensional space via a five-tuple model. Nonlinear dimensionality reduction based on manifold learning provides a feasible way for solving such a problem. We propose a novel globular neighborhood based locally linear embedding (GNLLE) algorithm using neighborhood update and an incremental neighbor search scheme, which not only can handle sparse datasets but also has strong anti-noise capability and good topological stability. Given that the distance measure adopted in nonlinear dimensionality reduction is usually based on pairwise similarity calculation, we also present a globular neighborhood and path clustering based locally linear embedding (GNPCLLE) algorithm based on path-based clustering. Due to its full consideration of correlations between image data, GNPCLLE can eliminate the distortion of the overall topological structure within the dataset on the manifold. Experimental results on two image sets show the effectiveness and efficiency of the proposed algorithms.

关键词： Image feature optimization Nonlinear dimensionality reduction Manifold learning Locally linear embedding (LLE)

Ultimate Lateral Capacity of Rigid Pile in c–φ Soil

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China Ocean Engineering 2018年第1期32卷 41-50页

作者： ZHANG wei-min Nanjing Hydraulic Research Institute Nanjing 210029China Key Laboratory of Water Scienceand Engineering Ministry of Water ResourcesNanjing 210029China National Energy Hydropower Engineering Safetyand Environmental Research and Development Center Nanjing 210029China

To date no analytical solution of the pile ultimate lateral capacity for the general c–φ soil has been obtained. In the present study, a new dimensionless embedded ratio was proposed and the analytical solutions of ultimate lateral capacity and rotation center of rigid pile in c–φ soils were obtained. The results showed that both the dimensionless ultimate lateral capacity and dimensionless rotation center were the univariate functions of the embedded ratio. Also,the ultimate lateral capacity in the c–φ soil was the combination of the ultimate lateral capacity（f;） in the clay, and the ultimate lateral capacity（f;） in the sand. Therefore, the Broms chart for clay, solution for clay（φ=0） put forward by Poulos and Davis, solution for sand（c=0） obtained by Petrasovits and Awad, and Kondner’s ultimate bending moment were all proven to be the special cases of the general solution in the present study. A comparison of the field and laboratory tests in 93 cases showed that the average ratios of the theoretical values to the experimental value ranged from 0.85 to 1.15. Also, the theoretical values displayed a good agreement with the test values.

关键词： pile ultimate lateral capacity dimensionless analytical solution c–φ soils hyperbolic function method

Infrared microspectroscopy beamline BL06B at SSRF

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Nuclear Science and Techniques 2024年第1期35卷 10-17页

作者： Te Ji Hua-Chun zhu wei-wei Peng Jie Wang Hong-wei Zhao Ai-Guo Li min Chen Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China

The infrared microspectroscopy beamline(BL06B) is a phase Ⅱ beamline project at the Shanghai Synchrotron Radiation Facility(SSRF). The construction and optical alignment of BL06B were completed by the end of 2020. By 2021, it became accessible to users. The synchrotron radiation infrared(SRIR) source included edge radiation(ER) and bending magnet radiation(BMR). The extracted angles in the horizontal and vertical directions were 40 and 20 mrad, respectively. The photon flux, spectral resolution, and focused spot size were measured at the BL06B endstation, and the experimental results were consistent with theoretical calculations. SRIR light has a small divergence angle, high brightness, and a wide wavelength range. As a source of IR microscopy, it can easily focus on a diffraction-limited spatial resolution with a high signal-to-noise ratio(SNR). The BL06B endstation can be applied in a wide range of research fields, including materials, chemistry, biology, geophysics, and pharmacology.

关键词： Synchrotron radiation Infrared beamline Infrared microspectroscopy

A Coupled Model Study on the Intensification of the Asian Summer Monsoon in IPCC SRES Scenarios

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Advances in Atmospheric Sciences 2005年第6期22卷 798-806页

作者： min wei Max-Planck-Institut fur Meteorologie Bundesstrasse 53 D-20146 Hamburg Germany

The Asian summer monsoon is an important part of the climate system. Investigating the response of the Asian summer monsoon to changing concentrations of greenhouse gases and aerosols will be meaningful to understand and predict climate variability and climate change not only in Asia but also globally. In order to diagnose the impacts of future anthropogenic emissions on monsoon climates, a coupled general circulation model of the atmosphere and the ocean has been used at the Max-Planck-Institute for Meteorology. In addition to carbon dioxide, the major well mixed greenhouse gases such as methane, nitrous oxide, several chlorofluorocarbons, and CFC substitute gases are prescribed as a function of time. The sulfur cycle is simulated interactively, and both the direct aerosol effect and the indirect cloud albedo effect are considered. Furthermore, changes in tropospheric ozone have been pre-calculated with a chemical transport model and prescribed as a function of time and space in the climate simulations. Concentrations of greenhouse gases and anthropogenic emissions of sulfur dioxide are prescribed according to observations （1860-1990） and projected into the future （1990-2100） according to the Scenarios A2 and B2 in Special Report on Emissions Scenarios （SRES, Nakcenovic et al., 2000） developed by the Intergovernmental Panel on Climate Change （IPCC）. It is found that the Indian summer monsoon is enhanced in the scenarios in terms of both mean precipitation and interannual variability. An increase in precipitation is simulated for northern China but a decrease for the southern part. Furthermore, the simulated future increase in monsoon variability seems to be linked to enhanced ENSO variability towards the end of the scenario integrations.

关键词： asian summer monsoon climate change IPCC SRES scenarios

Characterization of the Complete Mitochondrial Genome of the Hybrid Epinephelus moara♀ × Epinephelus lanceolatus♂,and Phylogenetic Analysis in Subfamily Epinephelinae

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Journal of Ocean University of China 2017年第3期16卷 555-563页

作者： GAO Fengtao wei min zhu Ying GUO Hua CHEN Songlin YANG Guanpin College of Marine Life Science Ocean University of China Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences (CAFS)Key Laboratory for Sustainable Development of Marine FisheriesMinistry of Agriculture Wuxi Fisheries College Nanjing Agricultural University

This study presents the complete mitochondrial genome of the hybrid Epinephelus moara♀× Epinephelus lanceolatus♂. The genome is 16886 bp in length, and contains 13 protein-coding genes, 2 r RNA genes, 22 t RNA genes, a light-strand replication origin and a control region. Additionally, phylogenetic analysis based on the nucleotide sequences of 13 conserved protein-coding genes using the maximum likelihood method indicated that the mitochondrial genome is maternally inherited. This study presents genomic data for studying phylogenetic relationships and breeding of hybrid Epinephelinae.

关键词： Epinephelus moara♀× Epinephelus lanceolatus♂ mitochondrial genome phylogenetic analysis