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2012全国压电和声波理论及器件技术研讨会

作者： Jin-min liANG Dang-guo YANG jian-qiang li Wei-min jianG Chun-yang li State Key Laboratory of Aerodynamics China Aerodynamics Research and Development Center High Speed Aerodynamics Research Institute China Aerodynamics Research and Development Center

Accurate measurement of wall shear stress is very important for understanding wall bounded shear flows properly,because it provides significant information about the flow phenomena,including viscous drag,the position where the flow transits to turbulence or separates from the *** measurement of shear stresses based on traditional fabrication technology are much too bulky to accomplish the task perfectly and may destroy the research matrix surface and most likely impossible to be used in any large-scale *** conflict between sensor size and sensitivity is the maximal impedance to the *** making the sensor smaller flexible with high time resolution can bring the boundary layer research to a new *** way of achieving these requirements is micro-fabricated *** paper presents that by taking advantage of MEMS fabrication techniques,sensors can response very quickly to the fluctuations in the flow and do not destroy the model ***,combining an integrating technology,plenty of sensors can be integrated to a membrane for measuring the wall shear stress in larger area *** characterization of a MEMS based thermal shear stress sensor array for high speed flow is presented in this *** static responses for different overheat ratios were obtained via a fully developed duct flow with Ma number 0.1-0.6,and the influence of temperature to the sensor output voltage was measured using a heater with four resistance coils which is able to change the flow temperature of the test section from 289-313 *** relationship between the output voltage and shear stress at overheat ratio of 1.2 is *** to that above,calibration methods is very key technique for application of MEMS sensors on flow measurement in high speed wind ***,the method can provide useful help for application and development of MEMS sensors.

关键词： MEMS Shear stress sensor Calibration Flow measurement High-speed wind tunnel

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Photocatalysis of TiO2 Sheets Prepared by Templating Filter Paper

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Chinese Journal of Chemical Physics 2011年第1期24卷 85-90,I0004页

作者：张清爽李巧玲李建强白蕊中北大学理学院化学系太原030051

Titanium dioxide sheet photocatalysts composed of interwoven microstrips were successfully synthesized using filter paper as templates. The synthesized samples were characterized by means of Fourier transform infrared spectroscopy, surface area analyzer, thermogravimetric analysis, powder X-ray diffraction, and scanning electron microscopy. The photocatalytic activities of the samples were evaluated by the degradation of methyl orange in an aqueous solution under UV-illumination. The results demonstrated that the paper-like TiO2 sheets with the optimum proportion of anatase/rutile （10/1） had the highest photoactivity. And the presence of the filter paper fiber can improve the crystallinity, raise the anatase-rutile transformation temperature and contribute to the formation of being paper-like. A detailed formation mechanism for TiO2 sheets is proposed.

关键词： Titanium dioxide sheet Microstrip Filter paper Photocatalysis Paper-like

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地黄属和崖白菜属的数量分类

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植物分类学报 2008年第5期46卷 730-737页

作者：李晓东昝艳燕李建强杨淑贞中国科学院武汉植物园浙江天目山国家级自然保护区浙江临安311300

选择地黄属Rehmannia和崖白菜属Triaenophora的8种植物55个形态学、细胞学、花粉学等性状指标,根据种间欧氏距离,利用NTSYS-pc Version 2.10e软件中的UPGMA聚类分析方法和主成分分析方法,首次对这两个属进行数值分类学研究。结果表明:... 详细信息

选择地黄属Rehmannia和崖白菜属Triaenophora的8种植物55个形态学、细胞学、花粉学等性状指标,根据种间欧氏距离,利用NTSYS-pc Version 2.10e软件中的UPGMA聚类分析方法和主成分分析方法,首次对这两个属进行数值分类学研究。结果表明:地黄属与崖白菜属是两个自然类群,除地黄属内的高地黄与裂叶地黄在UPGMA聚类中不能分开外,其他物种都能很好地分开。数量分类支持最近新发表的神农架崖白菜新种。

关键词：数量分类主成分分析地黄属崖白菜属 UPGMA

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多电机同步控制器的设计（英文）

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机床与液压 2016年第24期44卷 16-21页

作者：李健李阁强刘善慧河南科技大学洛阳471003 西安理工大学西安710048

针对印刷、纤维缠绕等行业对多电机同步运动控制的要求,设计了一种基于DSP+FPGA的嵌入式多电机同步运动控制器。首先介绍嵌入式多电机同步控制器的系统结构以及实现同步控制的方法;然后对同步控制器中脉冲产生、脉冲补偿、脉冲输出、位... 详细信息

针对印刷、纤维缠绕等行业对多电机同步运动控制的要求,设计了一种基于DSP+FPGA的嵌入式多电机同步运动控制器。首先介绍嵌入式多电机同步控制器的系统结构以及实现同步控制的方法;然后对同步控制器中脉冲产生、脉冲补偿、脉冲输出、位置反馈等关键功能的实现进行了详细阐述;最后通过实验验证了所设计的同步控制器能够达到较高的同步精度。

关键词：多电机同步控制脉冲序列运动控制 DSP FPGA

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池塘养殖尾水经稻田生态工程净化后的浮游细菌群落特征

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淡水渔业 2017年第1期47卷 71-77页

作者：陶玲李晓丽朱建强李谷长江大学湿地生态与农业利用教育部工程研究中心湖北荆州434025 中国水产科学研究院长江水产研究所武汉430223 淡水水产健康养殖湖北省协同创新中心武汉430070

为利用稻田生态工程对精养池塘尾水进行循环利用,采用Illumina Mi Seq第二代测序技术比较分析了稻田生态工程进出水中浮游细菌群落结构和多样性差异,以探讨稻田生态工程净化回用水中浮游细菌群落变化对池塘养殖的影响。结果显示,稻田生... 详细信息

为利用稻田生态工程对精养池塘尾水进行循环利用,采用Illumina Mi Seq第二代测序技术比较分析了稻田生态工程进出水中浮游细菌群落结构和多样性差异,以探讨稻田生态工程净化回用水中浮游细菌群落变化对池塘养殖的影响。结果显示,稻田生态工程进出水中优势浮游细菌在门水平上的组成相同,均为蓝细菌门(Cyanobacteria)、变形菌门(Proteobacteria)、放线菌门(Actinobacteria)、浮霉菌门(Planctomycetes)和拟杆菌门(Bacteroidetes)。但优势门类的相对丰度发生变化,蓝细菌门的相对丰度由进水中的46.72%显著降低至表面流出水中的41.82%和渗流出水中的34.77%;而放线菌门的相对丰度由3.90%增加至表面流出水中的5.65%和渗流出水中的6.45%。属水平上优势浮游细菌组成也相同,但微囊藻属(Microcystis)的相对丰度由0.83%显著降低至渗流出水中的0.46%(P<0.05)。另外,稻田生态工程表面流出水中浮游细菌物种丰富度指数(Chao 1)显著提高,渗流出水中Shannon多样性指数显著提高,且Simpson指数显著降低(P<0.05)。

关键词：池塘养殖生态工程稻田浮游细菌高通量测序

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Brain endothelial cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway in aging and neurodegeneration

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Neural Regeneration Research 2025年第7期20卷 2005-2007页

作者： Bryan Sun Lulin li jian Luo Palo Alto Veterans Institute for Research VA Palo Alto Health Care SystemPalo AltoCAUSA Polytrauma System of Care VA Palo Alto Health Care SystemPalo AltoCAUSA

The cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway has emerged as a key mediator of *** current studies primarily attribute its effects to neurons and glial cells,emerging research suggests that cGAS-STING signaling may play a critical role in cerebral vasculature,particularly in brain endothelial ***,studying the role 7of inflammation caused by the cGAS-STING pathway in brain endothelial cells could provide a more comprehensive understanding of neuroinflammatory disease and new avenues for therapeutic ***,we review the multifaceted role of global cGAS-STING signaling in various neurological and neuroinflammatory diseases and the potential contribution of cGAS-STING in brain endothelial cells.

关键词： stimulator interferon inflammation

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Expression of Porcine Interleukin-2 and Porcine Interleukin-6 and Their Adjuvant Effects on Gene Deleted Vaccine of Pseudorabies Virus(TK^-/gG^-/LacZ^+)

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Agricultural Sciences in China 2003年第8期2卷 924-929页

作者： YAN lin, HE Qi-gai, CHEN Huan-chun, XIAO Shao-bo, WU Mei-zhou,LU jian-qiang and HAN li(Laboratory of Virology, College of Animal Science and Veterinary Medicine, Huazhong Agriculture University , Wuhan 430070 , P. R. China) Laboratory of Virology College of Animal Science and Veterinary Medicine Huazhong Agriculture University Wuhan 430070 P.R.China

Porcine interleukin-2 and porcine interleukin-6 cDNA sequences were cloned into the expressing vectors pET-28a and pGEX-KG respectively. They were expressed in E. coli BL21(DE3)with high-level production. The gene deleted vaccine of pseudorabies virus Ea strain(TK-/gG-/LacZ+)was mixed with the two different purified recombinant proteins each, or both, with the doses of 2, 5 or 10 μg ml-1. Ten groups of pseudorabies negative antibody swines were immuned twice with tested vaccines with different doses, or control vaccine, respectively. The antibody liters of the test groups were detected by neutralization test, and the daily weight gains of swines were calculated and analyzed statistically. In the study, all the neutralizing antibody ti-ters in test groups were higher than the control group, and the recombinant proteins appeared a dose dependent adjuvant effect. The tested vaccines with 2 μg ml-1 pIL-2 and with 10 μg ml-1 pIL-2/pIL-6 got significant and extremely significant differences, compared with the vaccines without pILs. The difference of the daily weight gain indicated the potential positive influence of pIL-2 and pIL-6 on immune protection.

关键词： Porcine interleukin-2 Porcine interleukin-6 Expression Gene deleted vaccine of pseudora-bies virus(TK-/gG-/LacZ+) Adjuvant effect

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Prussian Blue Analogue‑Templated Nanocomposites for Alkali‑Ion Batteries:Progress and Perspective

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Nano-Micro Letters 2025年第1期17卷 216-261页

作者： jian‑En Zhou Yilin li Xiaoming lin Jiaye Ye Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006People’s Republic of China School of Chemistry and Physics Faculty of ScienceQueensland University of Technology2 George StreetBrisbaneQLD 4000Australia Centre for Materials Science Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia

lithium-ion batteries(liBs)have dominated the portable electronic and electrochemical energy markets since their commercialisation,whose high cost and lithium scarcity have prompted the development of other alkali-ion batteries(AIBs)including sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs).Owing to larger ion sizes of Na^(+)and K^(+)compared with li^(+),nanocomposites with excellent crystallinity orientation and well-developed porosity show unprecedented potential for advanced lithium/sodium/potassium *** enticing open rigid framework structures,Prussian blue analogues(PBAs)remain promising self-sacrificial templates for the preparation of various nanocomposites,whose appeal originates from the well-retained porous structures and exceptional electrochemical activities after thermal *** review focuses on the recent progress of PBA-derived nanocomposites from their fabrication,lithium/sodium/potassium storage mechanism,and applications in AIBs(liBs,SIBs,and PIBs).To distinguish various PBA derivatives,the working mechanism and applications of PBA-templated metal oxides,metal chalcogenides,metal phosphides,and other nanocomposites are systematically evaluated,facilitating the establishment of a structure–activity correlation for these *** on the fruitful achievements of PBA-derived nanocomposites,perspectives for their future development are envisioned,aiming to narrow down the gap between laboratory study and industrial reality.

关键词： Prussian blue analogues Self-sacrificial template lithium-ion batteries Sodium-ion batteries Potassium-ion batteries

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Expression of Porcine lnterleukin-2 and Porcine lnterleukin-6and Their Adjuvant Effects on Gene Deleted Vaccine ofPseudorabies Virus(TK~-/gG~-/LacZ~+)

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Journal of Integrative Agriculture 2003年第8期 104-109页

关键词： Porcine interleukin-2 Porcine interleukin-6 Expression Gene deleted vaccine of pseudora-bies virus(TK-/gG-/LacZ+) Adjuvant effect

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Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： qiang liu Xiang li Shen Du Ming Gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

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