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Tungsten 2025年第1期7卷 32-49页

作者： Li-Rong Xiao Chen Chen Shuo Wang Zi-Yin Dai Hideo Kimura cui ni Chuan-Xin Hou Xue-Qin Sun Si-Jie Guo Wei Du Xiu-Bo Xie School of Environmental and Material Engineering Yantai University Bosch HUAYU Steering Systems (Yantai) Co. Ltd.Ytp/MFE University of Tennessee Knoxville Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of Aeronautics

MgH2is considered as a promising hydrogen storage material for its high hydrogen storage capacity,low cost and abundant resource ***,the low kinetics and high enthalpy formation of MgH2limit its wide *** the perspective of adding catalysts to enhance the hydrogen storage properties of Mg-MgH2,this article elaborated the main catalysts based on Ti and Nb transition elements,including single oxide catalysts,binary oxides catalysts（combined with ni,Na,Sr,V,etc.）,multiple catalysts bound to carbon,and composite catalysts with Ti and Nb elements combined with MXene ***,the main pathways of various catalysts to reduce the reaction activity and broaden the hydrogen desorption channel were also *** Ti-based catalysts can enhance the reactive sites of the matrix by forming multivalent states,while Nb-based catalysts broaden the hydrogen reaction channels by forming tiny *** improving the size structure and enhancing the grain size stability,combined with carbon materials should be the future considerations.

关键词： Catalysts Mg-based hydrogen storage alloys Solid hydrogen storage Transition metal elements

niCoZn/C@melamine sponge-derived carbon composites with highperformance electromagnetic wave absorption

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International Journal of Minerals,Metallurgy and Materials 2024年第10期31卷 2274-2286页

作者： Xiubo Xie Heshan Wang Hideo Kimura cui ni Wei Du Guanglei Wu School of Environmental and Material Engineering Yantai UniversityYantai 264005China Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of AeronauticsBinzhou 256603China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

niMZn/C@melamine sponge-derived carbon(MSDC)composites(M=Co,Fe,and Mn)were prepared by a vacuum pump-ing solution method followed by carbonization.A large number of carbon nanotubes(CNTs)homogeneously attached to the surfaces of the three-dimensional cross-linked of the sponge-derived carbon in the niCoZn/C@MSDC composite,and CNTs were detected in the niFeZn/C@MSDC and niMnZn/C@MSDC ***_(3)ZnC_(0.7),ni_(3)Fe,and MnO in-situ formed in the niFeZn/C@MSDC and niMnZn/C@MSDC *** CNTs in the niCoZn/C@MSDC composite efficiently modulated its complex ***,the composite exhibited the best performance among the composites,with the minimum reflection loss(RL_(min))of-33.1 dB at 18 GHz and thickness of 1.4 *** bandwidth for RL of≤-10 dB was up to 5.04 GHz at the thickness of 1.7 mm and loading of 25wt%.The op-timized impedance matching,enhanced interfacial and dipole polarization,remarkable conduction loss,and multiple reflections and scat-tering of the incident microwaves improved the microwave absorption *** effects of Co,ni,and Fe on the phase and mor-phology provided an alternative way for developing highly efficient and broadband microwave absorbers.

关键词： microwave absorption carbon nanotube element substitution melamine sponge-derived carbon

Effects of different concentrations of nicotinamide on hematopoietic stem cells cultured in vitro

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World Journal of Stem Cells 2024年第2期16卷 163-175页

作者： Yan Ren Yan-ni cui Hong-Wei Wang The Second Clinical Medical College Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Hematology The Second Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Hematology Key Laboratory of Molecular Diagnosis and Treatment of Blood Diseases in Shanxi ProvinceTaiyuan 030001Shanxi ProvinceChina

BACKGROUND In vitro expansion to increase numbers of hematopoietic stem cells(HSCs)in cord blood could improve clinical efficacy of this vital ***(NAM)can promote HSC expansion ex vivo,but its effect on hematopoietic stem and progenitor cells(HSPCs,CD34^(+)CD38)and functional subtypes of HSCs-shortterm repopulating HSCs(ST-HSCs,CD34^(+)CD38CD45RACD49f^(+))and long-term repopulating HSCs(LT-HSCs,CD34^(+)CD38CD45RACD49f^(+)CD90^(+))is not yet *** a sirtuin 1(SIRT1)inhibitor,NAM participates in regulating cell adhesion,polarity,migration,proliferation,and ***,SIRT1 exhibits dual effects by promoting or inhibiting differentiation in different tissues or *** propose that the concentration of NAM may influence proliferation,differentiation,and SIRT1 signaling of *** To evaluate the effects and underlying mechanisms of action of different concentrations of NAM on HSC proliferation and *** CD34^(+)cells were purified from umbilical cord blood using MacsCD34 beads,and cultured for 10-12 d in a serum-free medium supplemented with cytokines,with different concentrations of NAM added according to experimental *** cytometry was used to detect phenotype,cell cycle distribution,and apoptosis of the cultured ***-time polymerase chain reaction was used to detect the transcription levels of target genes encoding stemness-related factors,che mokines,components of hypoxia pathways,and antioxidant ***-dihydro-fluorescein diacetate probes were used to evaluate intracellular production of reactive oxygen species(ROS).Determination of the effect of different culture conditions on the balance of cytokine by cytometric bead *** Compared with the control group,the proportion and expansion folds of HSPCs(CD34^(+)CD38)incubated with 5 mmol/L or 10 mmol/L NAM were significantly increased(all Pnificantly

关键词： Hematopoietic stem cells nicotinamide Concentration Proliferation Differentiation Sirtuin 1

Recent advances in the nanoconfinement of Mg-related hydrogen storage materials:A minor review

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International Journal of Minerals,Metallurgy and Materials 2023年第1期30卷 14-24页

作者： Jingjing Zhang Bing Zhang Xiubo Xie cui ni Chuanxin Hou Xueqin Sun Xiaoyang Yang Yuping Zhang Hideo Kimura Wei Du School of Environmental and Material Engineering Yantai UniversityYantai 264005China

Hydrogen is an ideal clean energy because of its high calorific value and abundance of ***,storing hydrogen in a compact,inexpensive,and safe manner is the main restriction on the extensive utilization of hydrogen ***(Mg)-based hydrogen storage material is considered a reliable solid hydrogen storage material with the advantages of high hydrogen storage capacity(7.6wt%),good performance,and low ***,the high thermodynamic stability and slow kinetics of Mg-based hydrogen storage materials have to be *** this paper,we will review the recent advances in the nanoconfinement of Mg-related hydrogen storage materials by loading Mg particles on different supporting materials,including carbons,metal-organic frameworks,and other *** are also provided for designing high-performance Mg-based materials using nanoconfinement.

关键词： magnesium-based materials hydrogen storage nanoconfinement carbon materials

Multiple “Omics” data-based biomarker screening for hepatocellular carcinoma diagnosis

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World Journal of Gastroenterology 2019年第30期25卷 4199-4212页

作者： Xiao-Na Liu Dan-ni cui Yu-Fang Li Yun-He Liu Gang Liu Lei Liu Institutes of Biomedical Sciences Fudan University

The huge prognostic difference between early and late stage hepatocellular carcinoma(HCC)is a challenging diagnostic ***-fetoprotein is the mostly widely used biomarker for HCC used in the clinic,however it’s sensitivity and specificity of is not *** development and application of multiple biotechnologies,including next generation sequencing,multiple“omics”data,that include genomics,epigenomics,transcriptomics,proteomics,metabolomics,metagenomics has been used for HCC diagnostic biomarker *** biomarkers/panels/models have been identified and validated at different clinical levels.A large proportion of these have a good diagnostic performance for HCC,especially for early *** this article,we reviewed the various HCC biomarkers derived from“omics”data and discussed the advantages and disadvantages for diagnosis HCC.

关键词： Hepatocellular carcinoma Diagnosis Circulating tumor cells Exosomes Circulating tumor DNA RNA Metabolomics Protein

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钢渣矿渣基全固废胶凝材料的水化反应机理

材料研究学报 2017年第9期31卷 687-694页

作者：崔孝炜倪文任超北京科技大学工业典型污染物资源化处理北京市重点实验室北京100083 商洛学院陕西省尾矿资源综合利用重点实验室商洛726000

以钢渣、矿渣和脱硫石膏为主要原料制备胶凝材料,使用XRD、IR、TG-DTA和SEM等手段探究胶凝材料的水化反应机理,研究了钢渣掺量对全固废混凝土强度的影响,以及胶凝材料浆体的p H值和代表性离子浓度的变化规律。结果表明,当原料质量比为m... 详细信息

以钢渣、矿渣和脱硫石膏为主要原料制备胶凝材料,使用XRD、IR、TG-DTA和SEM等手段探究胶凝材料的水化反应机理,研究了钢渣掺量对全固废混凝土强度的影响,以及胶凝材料浆体的p H值和代表性离子浓度的变化规律。结果表明,当原料质量比为m(钢渣):m(矿渣):m(石膏)=30:58:12时,全固废混凝土3 d、7 d和28 d可以获得较优的强度。随着反应龄期的增加胶凝材料水化溶液的pH值先减小后增大,Ca2+浓度和硅(铝)溶解物的早期浓度较低,后期浓度有所提高。在脱硫石膏的激发下钢渣和矿渣相互促进水化,水化产物以钙矾石(AFt)和水化硅酸钙(C-S-H)凝胶为主。在反应的后期,水化产物的数量迅速增加。针棒状的AFt晶体穿插在C-S-H凝胶内,使硬化浆体的结构更加致密。

关键词：无机非金属材料胶凝材料钢渣水化机理

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基于传感器光谱特性与分类的遥感图像融合

同济大学学报（自然科学版） 2011年第12期39卷 1860-1864,1870页

作者：倪翠关泽群林怡同济大学测量与国土信息工程系上海200092

为了提高多光谱图像和全色图像的融合质量,提出了一种基于广义亮度色度饱合度(IHS)变换与分类思想相结合的遥感图像融合算法.在充分考虑各波段传感器的相对光谱响应的基础上,在强度分量的构造和空间细节信息的注入方面进行了改进.改进... 详细信息

为了提高多光谱图像和全色图像的融合质量,提出了一种基于广义亮度色度饱合度(IHS)变换与分类思想相结合的遥感图像融合算法.在充分考虑各波段传感器的相对光谱响应的基础上,在强度分量的构造和空间细节信息的注入方面进行了改进.改进后的方法首先对图像进行分类,然后采用高斯概率密度函数对分类构造后的影像进行加权融合,有效地改善了光谱畸变问题,且能同时对所有的光谱波段进行融合.以资源卫星IKONOS影像进行实验,结果表明该方法不仅能使融合图像具有较好的空间分辨率,还能很好地保持原有多光谱图像的光谱响应特性,具有潜在的应用前景.

关键词：图像融合分类加权高斯概率密度函数光谱响应特性

Photoluminescence Characteristics of ZncuinS-ZnS Core-Shell Semiconductor Nanocrystals

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Chinese Physics Letters 2017年第4期34卷 104-107页

作者： Qiu-Lin Zhong Ming-Rui Tan Qing-Hui Liu ning Sui Ke Bi Mou-cui ni Ying-Hui Wang Han-Zhuang Zhang Key Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education) College of Physics Jilin UniversityChangchun 130012

The photoluminescence （PL） characteristics of ZncuinS quantum dots （Q, Ds） with varying ZnS shell thicknesses of O, 0.5, and 1.5 layers are investigated systemically by time-correlated single-photon counting measurements and temperature-dependent PL measurements. The results show that a ZnS shell thickness of 1.5 layers can effectively improve the PL quantum yield in one order of magnitude by depressing the surface trapping states of the core ZncuinS QDs at room temperature. However, the PL measurements at the elevated temperature reveal that the core-shell nanocrystals remain temperature-sensitive with respect to their relatively thin shells. The temperature sensitivity of these small-sized single-layered core-shell nanocrystals may find applications as effective thermometers for the in vivo detection of biological reactions within cells.

关键词： In QDs ZnS Photoluminescence Characteristics of ZncuinS-ZnS Core-Shell Semiconductor Nanocrystals

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恒电流微分计时电位溶出法测定矿物中银

冶金分析 2000年第2期20卷 46-48页

作者：倪翠芳苏州城建环保学院环保系!苏州215011

提出了应用微分计时电位溶出法测定矿物中银的方法。最佳底液组成为 0 0 5mol/LKCNS、0 5mol/LKNO3及 0 5mol/LHNO3,溶出峰电位为 +0 0 2V(vs SCE) ,线性范围为 1～ 84μg/L ,当富集时间为 1 1min时 ,最低检测限为 1 0 μg/L。本... 详细信息

提出了应用微分计时电位溶出法测定矿物中银的方法。最佳底液组成为 0 0 5mol/LKCNS、0 5mol/LKNO3及 0 5mol/LHNO3,溶出峰电位为 +0 0 2V(vs SCE) ,线性范围为 1～ 84μg/L ,当富集时间为 1 1min时 ,最低检测限为 1 0 μg/L。本法利用EDTA络合掩蔽法和巯基棉富集分离技术 ,使矿物中的银与干扰物质完全分离 ,应用于金、银矿物中银的测定 ,获得满意结果。可应用于含银量 0 0 0 2 g/t以上矿物中银的测定

关键词：银恒电流微分计时电位溶出法矿物巯基棉

基于Dijkstra算法的平滑路径规划方法

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北京航空航天大学学报 2024年第2期50卷 535-541页

作者：巩慧倪翠王朋程诺山东交通学院信息科学与电气工程学院济南250357 山东省科学院自动化研究所济南250013

移动机器人在复杂环境下沿Dijkstra算法规划的路径运动时,由于所规划的路径存在转折点多、部分转折角度小等问题,导致移动机器人不得不频繁转向,甚至要暂停才能完成转向,严重影响机器人的工作效率。利用几何拓扑学方法,结合实际场景信息... 详细信息

移动机器人在复杂环境下沿Dijkstra算法规划的路径运动时,由于所规划的路径存在转折点多、部分转折角度小等问题,导致移动机器人不得不频繁转向,甚至要暂停才能完成转向,严重影响机器人的工作效率。利用几何拓扑学方法,结合实际场景信息,提出一种基于Dijkstra算法的平滑路径规划方法。根据应用场景获取连续化地图,将连续化地图离散化后随机生成离散点阵,计算各点之间的欧氏距离,选取与各离散点距离较近、且连线不跨越障碍的多个点,将其连接并生成离散图。在离散图中利用Dijkstra算法搜索最优路径作为引导路径。当移动机器人沿引导路径运动时,结合实际场景信息,采用几何拓扑学计算出移动机器人每一时刻应该采取的最佳动作和运行路线。实验结果表明:所提方法能够有效减少移动机器人运动中的累计转弯角度,增大最小平均转折角度,提高所规划路径的平滑度,从而缩短移动机器人的运动时间,提升机器人的工作效率。

关键词：路径规划 Dijkstra算法引导路径路径平滑度最优路径