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Ga-In liquid metal nanoparticles prepared by physical vapor deposition

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Progress in Natural Science:Materials International 2018年第1期28卷 28-33页

作者： Fan Yu Jiale Xu huiqin li Zizhao Wang limin Sun Tao Deng Peng Tao Qi liang State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Instrumental Analysis Center Shanghai Jiao Tong University

Controlled synthesis and appropriate characterization of nanoscale particles of gallium-based liquid metals are critical to fulfilling their broad range of applications in the field of flexible, stretchable, and printable micro-/nanoelectronics. Herein, we report a new way to synthesize surfactant-free gallium-indium nanoparticles with controlled particle size on a variety of substrates through a facile physical vapor deposition method. It was found that with prolonged deposition time the liquid metal nanoparticles gradually grew from near-monodispersed small particles with a diameter of ～25 nm to bimodal distributed particles. A nucleation, growth, ripening and merging process was proposed to explain the observed evolution of particle size. Atomic force microscopy measurement indicates that the fabricated liquid metal nanoparticles demonstrate elastic deformation with a certain range of loads and the scanned particle size is dependent on the applied loads. We further investigated the gradual breaking process of the core-shell structured liquid metal nanoparticles, which was evidenced by multiple kinks on the force-separation curve. This work presents a new bottom-up approach to prepare nanoscale liquid metal particles and demonstrates that atomic force microscopy is a suitable technique to characterize the synthesized liquid metal nanoparticles.

关键词： Gallium-Indium alloy Atomic force microscopy liquid metal Nanoparticle

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基于地面气象站的滇西地区风能资源分析

科学技术创新 2024年第21期 29-32页

作者：李慧芹范丹华罗蒙杨锦超刀昱威云南省德宏州气象局云南芒市云南省气候中心云南昆明云南省芒市气象局云南芒市

利用滇西地区德宏州1961年以来所有国家气象站和区域自动站风能观测资料,分析该区域风能资源分布情况。结果表明:德宏总体属于风速较小的地区,2000年以后年平均风速呈现逐渐增加的趋势,特别是2010年以后增速显著;春季风速最大,其次为夏... 详细信息

利用滇西地区德宏州1961年以来所有国家气象站和区域自动站风能观测资料,分析该区域风能资源分布情况。结果表明:德宏总体属于风速较小的地区,2000年以后年平均风速呈现逐渐增加的趋势,特别是2010年以后增速显著;春季风速最大,其次为夏季、冬季,秋季最小,风速和风向的月际变化整体比较稳定、规律,且具有定时起风的特点;风能资源整体德宏北部优于南部,西南部瑞丽地区最差,其中盈江油松岭、昔马,梁河县城和芒市江东等山顶山脊地区和喇叭口地形区为风能可利用地区,其余站点均为风能贫乏区。

关键词：风能评估定时起风有效风能时数有效风能密度

Catalytic transformation of 4-nitrophenol into 4-aminophenol over ZnO nanowire array-decorated Cu nanoparticles

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Green Chemical Engineering 2024年第2期5卷 205-212页

作者： Anlin Feng Chaoyu lin huiqin Zhou Weihong Jin Yidong Hu Dongyang li Qingyang li Institute of Advanced Wear&Corrosion Resistant and Functional Materials Jinan UniversityGuangzhou510632China School of Chemical Engineering and Technology Hebei University of TechnologyTianjin300401China Department of Chemical and Materials Engineering University of AlbertaEdmontonT6G 2H5Canada

To realize economical and effective removal of hazardous 4-nitrophenol from the environment,we developed an easily recyclable ZnO nanowire array decorated with Cu *** salix argyracea-shaped structure not only provides a platform to achieve stable and good dispersion of Cu nanoparticles,but also offers a great deal of catalytically active *** density functional theory calculations reveal that ZnO and Cu have a very beneficial synergistic effect on their catalytic *** synergy is ascribed to the electronic localization occurring at ZnO/Cu interface,which helps improve Cu nanoparticle’s ability to adsorb electro-negatively 4-nitrophenolate ions and to capture hydrogen radicals,thereby accelerating the hydrogen transfer from metal hydride complex to *** from these characteristics,it exhibits high efficiency and reusability towards the catalytic reduction of waste 4-nitrophenol to valuable 4-aminophenol with a rate constant of 43.02×10^(-3)s^(-1)and an average conversion of 96.5%in 90 s during 10 *** activity is superior to that of most reported noble-or non-noble-metal powder,bulk,coating,and array catalysts,indicating its competitive advantages in cost and efficiency,as well as enticing application prospects.

关键词： ZnO nanowire Cu nanoparticle Nano-heterojunction 4-Nitrophenol catalytic reduction Density functional theory

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智能化钻孔设计与审查系统的研究

煤炭技术 2024年第6期43卷 228-232页

作者：龙杰左金芳李辉勤衡献伟张书金耿文博贵州省矿山安全科学研究院有限公司贵阳550025 贵州省煤矿设计研究院有限公司贵阳550025

为解决传统人工钻孔设计作业效率低、易出现空白带、设计不合理等问题,以WebGL技术支撑场景可视化的搭建,对钻孔设计作业的自动化方式展开研究,以设计的相关参数为依据,以输出钻孔设计参数表和成果CAD为目标,对规程规范、专家经验、布... 详细信息

为解决传统人工钻孔设计作业效率低、易出现空白带、设计不合理等问题,以WebGL技术支撑场景可视化的搭建,对钻孔设计作业的自动化方式展开研究,以设计的相关参数为依据,以输出钻孔设计参数表和成果CAD为目标,对规程规范、专家经验、布孔方式等影响设计的相关因素进行总结,构建了多种类型的钻孔设计模型。结果表明:系统能有效降低人工作业成本,设计成果能合理规避抽采空白带,自动输出的钻孔设计参数表与人工设计相符合,输出的成果图纸具有较好的施工指导意义,为煤矿企业人员全角度解读钻孔设计的合理性提供了支撑。

关键词：钻孔设计瓦斯抽采三维可视化智能设计

The S100 calcium binding protein A11 promotes liver fibrogenesis by targeting TGF-βsignaling

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Journal of Genetics and Genomics 2022年第4期49卷 338-349页

作者： Tingting Zhu linqiang Zhang Chengbin li Xiaoqiong Tan Jing liu huiqin li Qijing Fan Zhiguo Zhang Mingfeng Zhan lin Fu Jinbo Luo Jiawei Geng Yingjie Wu Xiaoju Zou Bin liang Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province Kunming Institute of Zoology Chinese Academy of SciencesKunmingYunnan 650223China Kunming College of life Science University of Chinese Academy of SciencesKunmingYunnan 650204China Center for life Sciences School of Life SciencesYunnan UniversityKunmingYunnan 650091China School of Traditional Chinese Medicine Yunnan University of Chinese MedicineKunmingYunnan 650500China Infectious Diseases Department and Hepatic Diseases Department The First People’s Hospital of Yunnan ProvinceKunmingYunnan 650034China Infectious Diseases Department and Hepatic Diseases Department The Affiliated Hospital of Kunming University of Science and TechnologyKunmingYunnan 650034China School of Laboratory Animal&Shandong Laboratory Animal Center Science and Technology Innovation CenterShandong First Medical University&Shandong Academy of Medical SciencesJinanShandong 250021China Institute for Genome Engineered Animal Models of Human Diseases National Center of Genetically Engineered Animal Models for International ResearchLiaoning Provence Key Lab of Genome Engineered Animal Models Dalian Medical UniversityDalianLiaoning 116044China

liver fibrosis is a key transformation stage and also a reversible pathological process in various types of chronic liver ***,the pathogenesis of liver fibrosis still remains ***,we report that the calcium binding protein A11(S100A11)is consistently upregulated in the integrated data from GSE liver fibrosis and tree shrew liver proteomics.S100A11 is also experimentally activated in liver fibrosis in mouse,rat,tree shrew,and human with liver *** overexpression of S100A11 in vivo and in vitro exacerbates liver fibrosis,the inhibition of S100A11 improves liver ***,S100A11 activates hepatic stellate cells(HSCs)and the fibrogenesis process via the regulation of the deacetylation of Smad3 in the TGF-βsignaling pathway.S100A11 physically interacts with SIRT6,a deacetylase of Smad2/3,which may competitively inhibit the interaction between SIRT6 and Smad2/*** subsequent release and activation of Smad2/3 promote the activation of HSCs and ***,a significant elevation of S100A11 in serum is observed in clinical *** study uncovers S100A11 as a novel profibrogenic factor in liver fibrosis,which may represent both a potential biomarker and a promising therapy target for treating liver fibrosis and fibrosis-related liver diseases.

关键词： Chronic liver diseases liver fibrosis S100A11 TGF-β SIRT6 Smad3

TIGER:A Web Portal of Tumor Immunotherapy Gene Expression Resource

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Genomics, Proteomics & Bioinformatics 2023年第2期21卷 337-348页

作者： Zhihang Chen Ziwei Luo Di Zhang huiqin li Xuefei liu Kaiyu Zhu Hongwan Zhang Zongping Wang Penghui Zhou Jian Ren An Zhao Zhixiang Zuo State Key Laboratory of Oncology in South China Cancer CenterCollaborative Innovation Center for Cancer MedicineSchool of Life SciencesSun Yat-sen UniversityGuangzhou 510060China Department of Gastrointestinal Surgery Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases Guangdong Institute of GastroenterologyThe Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China Department of Urology Cancer Hospital of the University of Chinese Academy of Sciences(Zhejiang Cancer Hospital)Hangzhou 310016China Experimental Research Center Cancer Hospital of the University of Chinese Academy of Sciences(Zhejiang Cancer Hospital)Hangzhou 310016China Institute of Cancer and Basic Medicine(IBMC) Chinese Academy of SciencesHangzhou 310000China

Immunotherapy is a promising cancer treatment method;however,only a few patients benefit from *** development of new immunotherapy strategies and effective biomarkers of response and resistance is urgently ***,high-throughput bulk and single-cell gene expression profling technologies have generated valuable ***,these resources are not well organized and systematic analysis is ***,we present TIGER,a tumor immunotherapy gene expression resource,which contains bulk transcriptome data of 1508 tumor samples with clinical immunotherapy outcomes and 11,057 tumor/normal samples without clinical immunotherapy outcomes,as well as single-cell transcriptome data of 2,116,945 immune cells from 655 *** provides many useful modules for analyzing collected and user-provided *** the resource in TIGER,we identified a tumor-enriched subset of CD4^(+)T *** with melanoma with a higher signature score of this subset have a significantly better response and survival under *** believe that TIGER will be helpful in understanding anti-tumor immunity mechanisms and discovering effective biomarkers.

关键词： Immunotherapy Biomarker Geneexpression Single-cell RNA-seq Web server

A PASSIVATION STUDY OF Ti-MODIFIED Fe—BASE ALLOY SYNTHESIZED BY MAGNETRON SPUTTERING TECHNIQUE

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Acta Metallurgica Sinica(English Letters) 1994年第1期7卷 27-30页

作者： li huiqin, ZHOU Honghui, YANG Dejun, SUN DongbaiUniversity of Science and Technology Beijing, China

A set of fracture device was designed on the basis of traditional scratching-electrode technology and used to study the passivation process of two magnetron-sputtered stainless sleel coatings (amorphous and crystalline struture). The results of fracture tests in 3.5 % NaCl aqueous solution show that the amorphous alloy has a high bare surface reactivity and a high passive rate in comparison with the crystalline alloy. The effect of structure on corrosion resistance is also discussed. The excellent corrosion resistance of amorphous alloy is considered to be partly attributed to its great passivation ability.

关键词： passivation kinetics amorphous Fe-base alloy coating,corrosion resistance

Analysis on Chinese Talent Loss Status from the Higher Education Perspective

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International Journal of Technology Management 2014年第4期 104-106页

作者： Shu Zhan li huiqin Huo Daran China University ofGeosciences(BeiJing) BeiJing City100083 China

In recent years, selection range of Chinese students for institutions of higher education is no longer limited to domestic range, with the rise of studying abroad, an increasing number of undergraduate and graduate students choose to go to the overseas for expansion of *** phenomenon has both advantages and disadvantages,on the one hand, it can promote the cultural exchange between countries,but on the other hand, the higher talent loss on China＇s economy caused great *** China＇s higher education workers and researchers, our research scope is not limited to the cultivation of the higher talents, and it also considers how to cultivate talent substantial contribution to economic civilization construction of the motherland without loss to foreign *** paper aims to analyze the current situation of higher talent loss in China from the perspective of higher education, and carries on the brief analysis on how to deal with this situation.

关键词： higher education talent loss study abroad

Applications of AuNRs@SiO<sub>2</sub>Matrix Nanocomposites

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World Journal of Engineering and Technology 2021年第1期9卷 60-82页

作者： huiqin li Shaotian Yan lihua Wu Shumei Dou Department of Chemistry and Chemical Engineering Baoji University of Arts and Sciences Baoji China Hebei Construction Material Vocational and Technical College Qinhuangdao China

Gold nanorods (AuNRs/GNR) have unique, controllable and anisotropic local surface plasmon resonance (SPR) properties, which have been widely used in biochemistry, electronics and catalysis. It is of great value and significance to study the synthesis, properties, surface modification and structural regulation of AuNRs. This paper introduces AuNRs and AuNRs@SiO2. The synthesis of AuNRs@SiO2 composite nanomaterials with quantum dots, graphene, rare earth materials and magnetic materials is described. The applications of nanocomposites in optics, biomedicine and biosensors are also discussed. The future development of nanocomposites is proposed.

关键词： AuNRs@SiO2 Matrix Composite Application Review