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Influence of CaZrO_3 on dielectric properties and microstructures of BaTiO_3-based X8R ceramics

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Science China(Technological Sciences) 2008年第9期51卷 1451-1456页

作者： TANG Bin, ZHANG ShuRen, YUAN Ying, zhou xiaohua & LIANG YiShuai State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu China

The influences of CaZrO3 on the dielectric properties and microstructures of BaTiO3 (BT)-based ceramics have been investigated. The experiment results showed that the dielectric constant at room temperature increased with the addition of CaZrO3 in the range of 0―3.0 mol%, which could be explained by the growth of BT grains. XRD analysis revealed that the tetragonality declined as CaZrO3 concentration in-creased. XRD patterns of BT ceramics with different amounts of CaZrO3 doping were analyzed by a recently developed procedure-materials analysis using diffrac-tion (MAUD), which was based on the Rietveld method combined with Fourier analysis. The results depicted that the high temperature peak of tempera-ture-capacitance characteristics (TCC) was largely dependent on the micro-strain of samples. Furthermore, more CaZrO3 doping resulted in lower porosity and higher density. It was revealed that proper usage of CaZrO3 could improve the di-electric properties significantly, which was benefit to develop X8R multi-layer ce-ramic capacitors.

关键词： dielectric properties barium titanate tetragonality temperature-capacitance characteristics calcium zirconate

EXTRACTION　AND　SEPARATION　OF　RADISH　RED　PIGMENT　FROM　A　WASTE　WATER　OF　SALTING　RADISH　BY　D61　RESIN

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Chinese Journal of Reactive Polymers 1996年第1期5卷 32-38页

作者： zhou xiaohua Kang Jane Shan Xueming(Resorses’ Comprehensive Utilization Engineering Centre of Chongqing University, Chongqing)

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关键词：萝卜色素提取 D61树脂红色素废水盐淹萝卜

New insights into the correlations between circulating tumor cells and target organ metastasis

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Signal Transduction and Targeted Therapy 2024年第1期9卷 211-233页

作者： Qinru Zhan Bixia Liu xiaohua Situ Yuting Luo Tongze Fu Yanxia Wang Zhongpeng Xie Lijuan Ren Ying Zhu Weiling He Zunfu Ke Department of Pathology The First Affiliated Hospital of Sun Yat-sen University510000 GuangzhouGuangdongP.R.China Institute of Precision Medicine The First Affiliated Hospital of Sun Yat-sen University510000 GuangzhouGuangdongP.R.China Zhongshan School of Medicine Sun Yat-sen University510000 GuangzhouGuangdongP.R.China Department of Radiology The First Affiliated Hospital of Sun Yat-sen University510000 GuangzhouGuangdongP.R.China Department of Microbiology and Immunology Weill Cornell MedicineNew YorkNY 10065USA School of Medicine Xiang’an Hospital of Xiamen UniversityXiamen University361000 XiamenFujianP.R.China

Organ-specific metastasis is the primary cause of cancer patient *** distant metastasis of tumor cells to specific organs depends on both the intrinsic characteristics of the tumor cells and extrinsic factors in their *** an intermediate stage of metastasis,circulating tumor cells(CTCs)are released into the bloodstream from primary and metastatic *** harboring aggressive or metastatic features can extravasate to remote sites for continuous colonizing growth,leading to further *** the past decade,numerous studies demonstrated that CTCs exhibited huge clinical value including predicting distant metastasis,assessing prognosis and monitoring treatment response et ***,increasingly numerous experiments are dedicated to identifying the key molecules on or inside CTCs and exploring how they mediate CTC-related organ-specific *** on the above molecules,more and more inhibitors are being developed to target CTCs and being utilized to completely clean CTCs,which should provide promising prospects to administer advanced ***,the application of various nanomaterials and microfluidic technologies in CTCs enrichment technology has assisted to improve our deep insights into the phenotypic characteristics and biological functions of CTCs as a potential therapy target,which may pave the way for us to make practical clinical *** the present review,we mainly focus on the role of CTCs being involved in targeted organ metastasis,especially the latest molecular mechanism research and clinical intervention strategies related to CTCs.

关键词： metastasis organs insight

弗雷格在专名问题上的特殊地位:间接指称以及专名辨认问题

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哲学动态 2006年第3期 37-42页

作者：周小华中国社会科学院研究生院哲学系

专名在语言中的地位非常特殊。由于人们在专名与对象之间再找到一种语言媒介将这两者联系起来是不可能的，那么专名的功能似乎就是直接联系对象，并因而使整个语言具有意义。这样，专名问题就成为语义学研究的核心之一。但是，除了语言... 详细信息

专名在语言中的地位非常特殊。由于人们在专名与对象之间再找到一种语言媒介将这两者联系起来是不可能的，那么专名的功能似乎就是直接联系对象，并因而使整个语言具有意义。这样，专名问题就成为语义学研究的核心之一。但是，除了语言媒介之外，难道专名与对象之间就真的不能有任何其他的“粘合剂”吗？一般的观点认为，语言哲学家因此而分成两大阵营．一大阵营是盲棒指称论者．另一大阵营县间接指称论者，

关键词：间接指称特殊地位弗雷格语言媒介辨认指称论语义学粘合剂哲学家

基于Copula-ASV-EVT-CoVaR模型的中小板与创业板风险溢出度量研究

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系统工程理论与实践 2016年第3期36卷 559-568页

作者：周孝华陈九生重庆大学经济与工商管理学院重庆400044

本文以条件在险价值(CoVaR)法为基础,结合Copula-ASV-EVT模型分析了我国中小板与创业板市场之间的风险溢出效应.结果表明,中小板与创业板市场之间存在双向风险溢出效应,且中小板市场对创业板市场的风险溢出效应强于创业板市场对中小板... 详细信息

本文以条件在险价值(CoVaR)法为基础,结合Copula-ASV-EVT模型分析了我国中小板与创业板市场之间的风险溢出效应.结果表明,中小板与创业板市场之间存在双向风险溢出效应,且中小板市场对创业板市场的风险溢出效应强于创业板市场对中小板市场的风险溢出效应.此外,文章还分析了波动冲击对中小板与创业板的影响.最后,本文为风险监管以及投资者在中小板与创业板之间进行资产配置提供了建议.

关键词： Copula函数 ASV-EVT模型 CoVaR 中小板创业板风险溢出

基于Copula-ASV-EVT的QFII和HS300指数相关性风险度量

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系统工程理论与实践 2017年第3期37卷 570-579页

作者：李强周孝华李婧贵州财经大学金融学院贵阳550025 重庆大学经济与工商管理学院重庆400030 吉林大学计算机科学与技术学院长春130023

以ASV-EVT模型为边缘分布函数,运用三种Copula簇方法研究了QFII和HS300指数之间的相关关系.研究结果表明:BB1 Copula较好地刻画了两指数尾部相关的非线性、非对称特征,且较好地拟合了相关结构,表明两指数在低迷时期的相关性明显高于其... 详细信息

以ASV-EVT模型为边缘分布函数,运用三种Copula簇方法研究了QFII和HS300指数之间的相关关系.研究结果表明:BB1 Copula较好地刻画了两指数尾部相关的非线性、非对称特征,且较好地拟合了相关结构,表明两指数在低迷时期的相关性明显高于其活跃时期的相关性.同时回测检验显示Copula-ASV-EVT模型能有效测度两指数组合的市场风险.进而,基于2006-2012年样本实证得出QFII一直坚持价值投资的有力证据.同时,随着QFII数量的增长和上市公司分红制度的完善,中国证券市场面临价值投资理性回归的极好机遇.

关键词： Copula函数相关结构价值投资在险价值 QFII持股指数

Building and sharing medical cohorts for research

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The Innovation 2024年第3期5卷 23-24页

作者： Guo-Bo Chen Siyang Liu Lei Zhang Tao Huang xiaohua Tang Yixue Li Changqing Zeng Department of Genetic and Genomic Medicine Zhejiang Provincial People’s HospitalAffiliated People’s Hospital of Hangzhou Medical CollegeHangzhou 310014China Ningbo Institute of Life and Health Industry University of Chinese Academy of SciencesNingbo 315000China School of Public Health(Shenzhen) Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518017China China National GeneBank Shenzhen 518116China Shanghai Institute of Nutrition and Health Chinese Academy of SciencesShanghai 200031China Wenzhou Central Hospital Dingli Clinical Medical School of Wenzhou Medical UniversityWenzhou 325000China Guangzhou Laboratory Guangzhou 510320China Henan Academy of Sciences Zhengzhou 450046China

Cohort studies are costly and time *** require not only laboratory equipment and assays but also collaboration from participants and health *** to cost constraints,they are often confined to a specific ***,they play a crucial role in providing fundamental insights for medical advancements,shedding light on the origins of diseases,and acting in socioeconomic influence in policy making.

关键词： consuming constraints insight

Study of Epoxy Bonding

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Study of Epoxy Bonding

Research evolution of metal organic frameworks: A scientometric approach with human-in-the-loop

作者： xiaohua zhou Zhiyuan Liu Hui Xing Beijing Institute of Space Mechanics ＆ Electricity

Bonding is used widely when the optical glasses are connected with metal structures. It plays a very important role in the design of space telescope. Improper bonding may induce great surface figure error for optics in *** and EC2216 are the most popular epoxies that are used in *** usually exist in the epoxy when two components are mixed or translated to syringe. In this paper, the methods and experiments of adhesive mixture and injection in vacuum environment were explained to reduce the bonding surface figure of the mirror. The results show that adhesive mixture and injection in vacuum environment can dramatically decrease the bubble in the epoxy and greatly reduce the bonding surface figure error.

关键词： Epoxy Bonding Vacuum Milbond EC 2216

来源： cnki会议评论

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JOURNAL OF DATA AND INFORMATION SCIENCE 2024年第3期9卷 44-64页

作者： Zhao, Xintong Langlois, Kyle Furst, Jacob An, Yuan Hu, xiaohua Gualdron, Diego Gomez Uribe-Romo, Fernando Greenberg, Jane Drexel Univ 3141 Chestnut St Philadelphia PA 19104 USA Univ Cent Florida 4000 Cent Florida Blvd Orlando FL USA Colorado Sch Mines 1500 Illinois St Golden CO USA

Purpose This paper reports on a scientometric analysis bolstered by human-in-the-loop, domain experts, to examine the field of metal-organic frameworks (MOFs) research. Scientometric analyses reveal the intellectual landscape of a field. The study engaged MOF scientists in the design and review of our research workflow. MOF materials are an essential component in next-generation renewable energy storage and biomedical technologies. The research approach demonstrates how engaging experts, via human-in-the-loop processes, can help develop a comprehensive view of a field's research trends, influential works, and specialized ***/methodology/approach A scientometric analysis was conducted, integrating natural language processing (NLP), topic modeling, and network analysis methods. The analytical approach was enhanced through a human-in-the-loop iterative process involving MOF research scientists at selected intervals. MOF researcher feedback was incorporated into our method. The data sample included 65,209 MOF research articles. Python3 and software tool VOSviewer were used to perform the *** The findings demonstrate the value of including domain experts in research workflows, refinement, and interpretation of results. At each stage of the analysis, the MOF researchers contributed to interpreting the results and method refinements targeting our focus on MOF research. This study identified influential works and their themes. Our findings also underscore four main MOF research directions and *** limitations This study is limited by the sample (articles identified and referenced by the Cambridge Structural Database) that informed our *** implications Our findings contribute to addressing the current gap in fully mapping out the comprehensive landscape of MOF research. Additionally, the results will help domain scientists target future research ***/value To the best of our knowledge, the number of pu

关键词： Scientometric Metal-Organic Frameworks (MOFs) Network Analysis Topic Modeling Human in the Loop BIBLIOMETRIC ANALYSIS CRYSTAL-STRUCTURE DESIGN CHEMISTRY