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Hippocampal CA1 pyramidal cells and neurotrophic factors in a rat model of vascular dementia following Xiongma drop pill versus Ginkgo leaf tablets

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Neural Regeneration Research 2009年第12期4卷 973-978页

作者： Ying Zhao lin Liu Houjun Teng Jiling jiang Dan Li College of Pharmacy Harbin University of Commerce Harbin 150076 Heilongjiang Province China

BACKGROUND： Previous studies have demonstrated the neuroprotective effects of Xiongma drop pill （XMDP） in a mouse model of vascular dementia. Neurotrophic factors play an important role in repair and regeneration of injured neurons. OBJECTIVE： To compare the effects of XMDP and Ginkgo leaf tablets on the appearance and number of hippocampal CA1 pyramidal neurons, as well as neurotrophic factor content in brain tissues, during vascular dementia formation to explore the neuroprotective mechanisms of XMDP. DESIGN, TIME AND SETTING： A randomized, controlled, animal experiment was performed at the Laboratory of Pharmacology, College of Pharmacy, Harbin University of Commerce between April 2007 and December 2008. MATERIALS： XMDP was prepared by the College of Pharmacy, Harbin University of Commerce, with each 40 mg pill containing ferulic acid （≥ 0.149 mg） and gastrodin （≥ 0.171 mg）. Ginkgo leaf tablets were purchased from Taiyuan Qianyuan Pharmacy, China. METHODS： Healthy, adult, male, Wistar rats were randomly assigned to 6 groups： sham-operation, model, XMDP （high-, middle-, and low- dose）, and Ginkgo leaf tablets. The 6 groups were subdivided into two subgroups according to administration days, i.e., 30 and 60 days, with 8 animals in each subgroup. Rats in the model, XMDP, and Ginkgo leaf tablets groups were subjected to permanent bilateral ligation of the common carotid artery to establish a vascular dementia model. At 8 days after model establishment, all groups received intragastric administration once daily of the following： 10 mL/kg normal saline in the sham-operation and model groups; 0.4, 0.2, and 0.1 g/kg XMDP in the high-, middle-, and low-dose XMDP groups, respectively; and 50 mg/kg Ginkgo leaf tablets in the Ginkgo leaf tablets group. MAIN OUTCOME MEASURES： Hematoxylin-eosin staining was used to observe appearance and to quantify the number of hippocampal CA1 pyramidal neurons. Brain-derived neurotrophic factor and nerve growth factor concentrations in brai

关键词： Xiongma drop pill vascular dementia pyramidal neurons brain-derived neurotrophic factor nerve growth factor

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The study on preparing anti-radiation material by reverse microemulsion method

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Chinese Chemical Letters 2008年第5期19卷 615-618页

作者： Ping Ping jiang Xue Min lin Jian Bo Chen School of Chemical and Material Engineering Jiangnan University Wuxi 214122 China

A new way to prepare PMMA contain lead salt was presented. This work firstly prepares the material by microemulsion polymerization. The ability of anti-radiation, transmittance ratio and glass transition temperature （Tg） of the material was characterized. The anti-radiation ability is enhanced with the increasing of lead salt content and the thickness of the material. The transmittance ratio decreased with the content of the lead salt. The glass transition temperature of the material is increased with the lead salt content of the organic glass.

关键词： Microemulsion Polymerization Anti-radiation

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Design of a reconfigurable transcendental function generator

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The Journal of China Universities of Posts and Telecommunications 2017年第1期24卷 96-102页

作者： jiang lin Lü Qing Xie Xiaoyan Shan Rui Deng Junyong School of Electronic Engineering Xi'an University of Posts and Telecommunications Xi'an 710121 China School of Computer Science and Technology Xi'an University of Posts and Telecommunications Xi'an 710 121 China

In order to take into account the computing efficiency and flexibility of calculating transcendental functions, this paper proposes one kind of reconfigurable transcendental function generator. The generator is of a reconfigurable array structure composed of 30 processing elements （PEs）. The coordinate rotational digital computer （CORDIC） algorithm is implemented on this structure. Different functions, such as sine, cosine, inverse tangent, logarithmic, etc., can be calculated based on the structure by reconfiguring the functions of PEs. The functional simulation and field programmable gate array （FPGA） verification show that the proposed method obtains great flexibility with acceptable performance.

关键词： reconfigurable computing reconfigurable transcendental function generator CORDIC array processor

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Factors affecting the pilot trading market of carbon emissions in China

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Petroleum Science 2018年第2期15卷 412-420页

作者： Yong jiang Ya-lin Lei Yong-Zhi Yang Fang Wang School of Humanities and Economic Management China University of GeosciencesBeijing 10083China Key Laboratory of Carrying Capacity Assessment for Resources and Environment Ministry of Land and ResourcesBeijing 100083China Petrochina Research Institute of Petroleum Exploration and Development Beijing 100083China

Climate change and carbon emissions are major problems which are attracting worldwide attention. China has had its pilot carbon emission trading markets in seven regions for more than 3 years. What affects carbon emission trading market in China is a big question. More attention is paid to how China promotes the carbon emission trading schemes in the whole country. This paper addresses concerns about the functioning of carbon emission trading schemes in seven pilot regions and takes the weekly data from November 25, 2013, to March 19, 2017. We employ a vector autoregressive model to study how coal price, oil price and stock index have affected the carbon price in China. The results indicate that carbon price is mainly affected by its own historical price; coal price and stock index have negative effects on carbon price, while oil price has a negative effect on carbon price during the first 3 weeks and then has a positive effect on carbon price. More regulatory attention and economic measures are needed to improve market efficiency, and the mechanisms of carbon emission trading schemes should be improved.

关键词： Carbon emission trading market Carbon price VAR model China

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船舶有航速时三维时域格林函数计算方法研究

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船舶力学 2024年第1期28卷 20-35页

作者：鲁江张楠张新曙顾民中国船舶科学研究中心江苏无锡214082 上海交通大学海洋工程国家重点实验室上海200240

船舶工业CAE软件势流求解器的开发对势流计算方法的可靠性提出要求,本文针对船舶有航速时深水三维时域格林函数计算方法开展研究。首先引入三维时域自由面格林函数,其瞬时项的求解采用Hess&Smith方法,自由面记忆项的求解采用美国密歇根... 详细信息

船舶工业CAE软件势流求解器的开发对势流计算方法的可靠性提出要求,本文针对船舶有航速时深水三维时域格林函数计算方法开展研究。首先引入三维时域自由面格林函数,其瞬时项的求解采用Hess&Smith方法,自由面记忆项的求解采用美国密歇根大学Beck团队的方法。其次,分区域推导出三维时域自由面格林函数记忆项及其导数的编程所用的数学展开表达式。然后,采用间接法模型求解分布源强和速度势,并采用压力直接积分法求出时域辐射力。最后,针对Wigley I船型开展了辐射力计算,并与公开的试验及计算结果进行对比,验证本文方法的可靠性。

关键词：三维时域格林函数辐射力船舶CAE自主软件

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Microstructure and corrosion behavior of electroless deposited Ni-P/CeO_2 coating

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Chinese Chemical Letters 2008年第11期19卷 1367-1370页

作者： Hui Ming Jin Shi Hang jiang lin Nan Zhang College of Mechanical Engineering Yangzhou University Yangzhou 225009 China College of Environmental Science and Engineering Peking University Beijing 100015 China

Electroless Ni-P/nano-CeO2 composite coating was prepared in acidic condition, and its microstructure and corrosive property were compared with its CeO2-free counterpart. Scanning electronic microscopy （SEM） and X-ray diffraction （XRD） spectrometer were used to examine surface morphology and structure of the as-plated coating. Differential scanning calorimeter （DSC） and transmission electronic microscopy （TEM） were used to study the coating＇s phase change at high temperature. The coating＇s corrosive behavior in 3%NaCl ＋ 5%H2SO4 solution was also investigated. The results showed that Ni-P coating had partial amorphous structure mixed with nano-crystals, while the Ni-P/CeO2 coating had perfect amorphous structure. In high-temperature condition, Ni3P precipitation and Ni crystallization took place in both coatings but at different temperatures, while the Ni-P/CeO2 coating had sintered phase of NiCe2O4 spinels. The anti-corrosion property was better in the CeO2-containing coating, and this was due to its less liability to undergo local-cell corrosion than its CeO2-free counterpart. Ni-P/CeO2 coating＇s pure amorphous structure was the result of Ni＇s hindered crystal-typed deposition and P＇s promoted deposition.

关键词： Ni-P Ceria Electroless deposition Corrosion

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同一期刊,不同实践:基于语料库的《应用语言学》互动元话语研究

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Chinese Journal of Applied linguistics 2024年第2期47卷 219-237,364页

作者：卢思佟姜峰沈阳医学院吉林大学

研究论文是学者与学科社群沟通的主要媒介,但少有研究关注在一份期刊内,不同研究主题的写作实践在多大程度上存在差异。本研究通过比较《应用语言学》期刊语言习得和话语分析论文中互动元话语的使用情况,弥补这一不足。基于每个研究主... 详细信息

研究论文是学者与学科社群沟通的主要媒介,但少有研究关注在一份期刊内,不同研究主题的写作实践在多大程度上存在差异。本研究通过比较《应用语言学》期刊语言习得和话语分析论文中互动元话语的使用情况,弥补这一不足。基于每个研究主题30篇研究论文的语料库,结果显示,语言习得领域的作者显著更频繁地使用增加性和结果性过渡标记语、重述语和非嵌入式引用,而话语分析者更倾向于使用例证、线性和非线性引用以及主题转换。这些差异都可以归因于学科研究范式的特点,这导致了学术写作中不同的知识构建和互动模式。研究结果为元话语在构建学科知识的修辞功能提供了实证证据,并对学术英语教师提供了教学意义,帮助应用语言学学者更好地了解国际发表的语言特点。

关键词：互动元话语学术写作语言习得话语分析研究范式

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面向国际市场的传统文化类主题出版传播路径新探

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出版发行研究 2024年第9期 5-13页

作者：蒋琤琤韩建民杭州电子科技大学融媒体与主题出版研究院

中华优秀传统文化是中国式现代化的基座和文化标识,是我们最深厚的文化家园。党的二十届三中全会指出增强文化自信,构建更有效力的国际传播体系。中华优秀传统文化的对外传播是向世界展示中华文明发展历史与全貌的核心路径,也是文明互... 详细信息

中华优秀传统文化是中国式现代化的基座和文化标识,是我们最深厚的文化家园。党的二十届三中全会指出增强文化自信,构建更有效力的国际传播体系。中华优秀传统文化的对外传播是向世界展示中华文明发展历史与全貌的核心路径,也是文明互鉴的重要实践,更是中国式现代化发展的必由之路。传统文化类主题出版是展示中华文化特征的重要渠道,是党和国家意志的重要载体。同时,主题出版国际传播在消除隔阂、增进交流的重要使命中有着不可替代、举足轻重的作用。但传统文化类主题出版由于概念相对模糊,主题策划模式陈旧,传播路径单一,在一定程度上阻碍了其发展步伐。文章梳理了传统文化类主题出版国际市场传播的价值与功能、现状与问题,并首次辨析了面向国际市场的传统文化类主题出版的概念变迁与规律性认识,提出了加强传统文化类主题出版传播效能的新方法、新路径,希望对传统文化类主题出版国际传播高质量发展有一定推动作用。

关键词：文明互鉴传统文化主题出版国际传播

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miR-23a/b regulates the balance between osteoblast and adipocyte differentiation in bone marrow mesenchymal stem cells

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Bone Research 2016年第2期4卷 110-118页

作者： Qi Guo Yusi Chen Lijuan Guo Tiejian jiang Zhangyuan lin Department of Endocrinology The Xiangya Hospital of Central South University Department of Gerontology The Xiangya Hospital of Central South University Department of Orthopedics The Xiangya Hospital of Central South University

Age-related osteoporosis is associated with the reduced capacity of bone marrow mesenchymal stem cells （BMSCs） to differentiate into osteoblasts instead of adipocytes. However, the molecular mechanisms that decide the fate of BMSCs remain unclear. In our study, microRNA-23a, and microRNA-23b （miR-23a/b） were found to be markedly downregulated in BMSCs of aged mice and humans. The overexpression of miR-23a/b in BMSCs promoted osteogenic differentiation, whereas the inhibition of miR-23a/b increased adipogenic differentiation. Transmembrane protein 64 （Tmem64）, which has expression levels inversely related to those of miR-23a/b in aged and young mice, was identified as a major target of miR-23a/b during BMSC differentiation. In conclusion, our study suggests that miR-23a/b has a critical role in the regulation of mesenchymal lineage differentiation through the suppression of Tmem64.

关键词： BMSCs bone miR-23a/b regulates the balance between osteoblast and adipocyte differentiation in bone marrow mesenchymal stem cells stem

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TPS-PBAT复合材料的制备及表征

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塑料科技 2024年第5期52卷 117-120页

作者：姜林旭王晓广夏发明方可苏小雅武汉纺织大学湖北武汉430200 湖北顶新环保生物质材料有限公司湖北黄石435200 山东润泉生物科技有限公司山东枣庄277000

以钠基蒙脱土为填充物制备Na-GMMT/TPS粒料(简称TPS),将TPS按不同比例与PBAT共混,通过双螺杆挤出机制备TPS-PBAT复合材料。通过万能材料试验机、X射线衍射系统(XRD)、热重分析仪(TG)和扫描电子显微镜(SEM),对TPS-PBAT复合材料的结构和... 详细信息

以钠基蒙脱土为填充物制备Na-GMMT/TPS粒料(简称TPS),将TPS按不同比例与PBAT共混,通过双螺杆挤出机制备TPS-PBAT复合材料。通过万能材料试验机、X射线衍射系统(XRD)、热重分析仪(TG)和扫描电子显微镜(SEM),对TPS-PBAT复合材料的结构和性能进行表征。结果表明:以TPS为基体时,复合材料可以在保持良好断裂伸长率的前提下,大幅提升拉伸强度。TPS-PBAT-4复合材料的断裂伸长率为233.3%,拉伸强度为18.9 MPa。随着TPS含量的提升,复合材料的衍射峰逐渐平缓,说明TPS的添加降低了复合材料的结晶度。TPS的加入,提升了玉米淀粉和PBAT的热稳定性。以PBAT为基体时,TPS与PBAT的相容性较差。以TPS为基体时,TPS与PBAT之间没有明显的界限,表现出较好的相容性。

关键词：钠基蒙脱土 TPS PBAT 力学性能

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