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LiFePO_4 doped with magnesium prepared by hydrothermal reaction in glucose solution

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Chinese Chemical Letters 2008年第3期19卷 345-349页

作者： Xiu qin ou Guang Chuan Liang Jin Sheng Liang Sheng Zhao Xu Xia Zhao Institute of Power Source ＆ Ecomaterials Science Box 1055 Hebei University of Technology Tianjin 300130 China

Lithium iron phosphate （LiFePO4） doped with magnesium was hydrothermally synthesized from commercial LiOH, FeSO4, H3PO4 and MgSO4 with glucose as carbon precursor in aqueous solution. The samples were characterized by X-ray powder diffraction, scanning electron microscopy and constant charge-discharge cycling. The results show that the synthesized powders have been in situ coated with carbon precursor produced from caramel reaction of glucose. At ambient temperature （28±2℃）, the electrochemical performances of LiFePO4 prepared exhibit the high discharge capacity of 135 mAh g^-1 at 5C and good capacity retention of 98% over 90 cycles. The excellent electrochemical performances should be correlated with the intimate contact between carbon and LiFePO4 primary and secondary particles, resulting from the in situ formation of carbon precursor/carbon, leading to the increase in conductivity of LiFePO4.

关键词： Lithium iron phosphate Mg doping Hydrothermal reaction Glucose Carbon coated

The Influence of SelW on GSH and GPx after Post-Transcriptional Gene Silencing in Mouse Skeletal Muscle Cells

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畜牧兽医学报 2009年第S1期40卷 62-66页

作者： WANG Xiao-long XU Kai qin ou-ju CHEN Xiao-feng YANG Chuan-ping Wildlife Medicine Dept. Wildlife Resource CollegeNortheast Forestry University Key Laboratory of Forest Tree Genetic Improvement and Biotechnology of Ministry of Education Northeast Forestry University

The expression of Selenoprotein W(SelW)in C2C12 skeletal muscle cells was specifically decreased to examine its influence on the amount of glutathione(GSH)and the activity of glutathione peroxidase(GPx).SelW knock-down was performed by RNA interference(RNAi)in cultured muscle cells and verified by Real-time PCR and Western *** addition,cell viability,GSH content and GPx activity were *** results showed that the mRNA level and protein expression of SelW were decreased successfully by 71.9%and 68.8%relative to control values,cell viability decreased by 21.5%,GSH increased by 29.76%,and GPx increased by 47.58%.WST assay showed that compared with blank control,the value of positive group dropped 21.5%;In GSH and GPx assay,compared with blank control the positive group increased29.76%and 47.58%*** conclusion,SelW knock-down by RNAi caused significant cytotoxity in skeletal muscle cells and led to compensatory increases in GSH content and GPx *** findings are consistent with the suggestions from bioinformatics indicating an antioxidative role for SelW in skeletal muscle cells.

关键词： SelW GSH GPx anti-oxidation skeletal muscle cell

LOOKING FOR'DROMA'Seventy years of Tibetan stories behind“Droma”

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China Report ASEAN 2021年第6期6卷 42-45页

作者： Norbu Tsering Wang qin’ou 不详

“ou have the name of a flower,beautiful Droma *** have the smile of a flower,beautiful Droma La.”These lines are from Droma,a popular Tibetan song celebrating the beauty of Tibetan *** Tibet,women are often referred to as“Droma,”and many use it as a given *** word“Droma”has become *** who are Dromas?What are Dromas like?What forces shape them?We trekked across the vast Tibetan plateau in search of Dromas and found profound stories against a backdrop of changing times.

关键词： Tibetan beautiful plateau

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基于克隆选择算法的障碍布局分配问题研究

武汉大学学报（信息科学版） 2007年第8期32卷 744-747页

作者：梁勤欧武汉大学资源与环境科学学院武汉市珞喻路129号430079

应用克隆选择算法(clonal selection principle,CLONALG),结合其他模型算法,提出了一套解决障碍布局分配问题的简化流程,并用实验进行了验证,得到了满意的效果。

关键词：人工免疫系统克隆选择算法障碍布局分配问题

Effect of Nanometer preparation of dogwood on the BDNF/TrkB pathway of aging model rats induced by D-galactose

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Effect of Nanometer preparation of dogwood on the BDNF/TrkB ...

OA induces apoptosis in HL-60 cells of model mice through the down-regulation of Bcl-2

生命的分子机器及其调控网络——2012年全国生物化学与分子生物学学术大会

作者： qin ou Lina Liu Guiming Zhu Jinhua Piao Didi Wang Preclinical Medical College Jiamusi University

Objective:To explore the relation between the learing and memory capabilities in brain aging model rats and the BDNF-TrkB-ERK signal transduction ***:Forty male SD rats(body weight 350g～400g) were randomly divided into 4 groups,the youth compare group(YCM),the aging model group(AMG),water extract and nanometer particle of dogwood groups(WER and NPR).The AGR rats were induced by injecting D-gal into abdominal cavity daily according to 80mg/kg for 8 *** same doses of dogwood were intragastric administrated to WER and NPR according to 0.57g/kg for 30 *** ability of learning and memory

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来源： cnki会议评论

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OA induces apoptosis in HL-60 cells of model mice through th...

基于遥感生态指数的甬江流域生态环境变化分析

中国生物化学与分子生物学会第十届会员代表大会暨全国学术会议

作者： Pengxia Zhang Jinhua Piao Zhao Wang qin ou Xu Gao Jiamusi University Harbin Medical University

Methods:culture acute myeloid leukaemia HL-60 cell in *** SCID(severe combined immnunodeficiency) mice,inject 0.5 ml 2×107/ml HL-60 cell into abdominal cavity in SCID mice,human leukemia xenograft model mice was *** in Medication group,OA at a dose of 200 mg /kg was injected subcutaneouly for 14 d,the normal control group and human leukemia xenograft model mice group were injected with 2%*** condition and the infiltration of leukemia cells in peripheral blood,spleen and liver were observed after the mice bearing

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来源： cnki会议评论

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长江流域资源与环境 2021年第2期30卷 427-438页

作者：缪鑫辉梁勤欧浙江师范大学地理与环境科学学院浙江金华321004 浙江师范大学卫星遥感与环境灾害研究中心浙江金华321004

生态环境是人类生存发展的物质基础,城市化进程不断加快带来一系列生态环境问题,遥感技术可以快速、定量地评价生态环境变化。选取2000、2009、2017年Landsat遥感影像提取湿度、绿度、干度、热度4个评价指标,通过主成分分析方法计算遥... 详细信息

生态环境是人类生存发展的物质基础,城市化进程不断加快带来一系列生态环境问题,遥感技术可以快速、定量地评价生态环境变化。选取2000、2009、2017年Landsat遥感影像提取湿度、绿度、干度、热度4个评价指标,通过主成分分析方法计算遥感生态指数RSEI(Remote Sensing Ecological Index),对17年间甬江流域进行生态环境变化定量分析和动态监测评价。结果表明:(1)2000~2017年间甬江流域生态环境质量整体上呈下降趋势,2000、2009和2017年的RSEI均值分别为0.724、0.651和0.687,17年来下降了5.11%。(2)2000~2009年甬江流域生态逐步恶化,而2009~2017年生态环境质量有所改善;明显变差的面积为1392.49 km^(2),约占29.63%,明显好转的面积仅为699.1 km^(2),仅占14.88%,呈现老城区变好,城市外围地带变差,林地、农田等保持稳定的特点。(3)在4个指标中,绿度指标的影响力较大,受建筑因素作用的热度指标影响力最具潜力,说明生态环境质量下降与不透水面的增加以及绿地景观的消减有关。

关键词：生态变化遥感生态指数时空变化甬江流域宁波市

基于遗传克隆选择算法优化BP神经网络的地理信息预测研究

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测绘通报 2007年第10期 29-31,53页

作者：梁勤欧武汉大学资源与环境科学学院湖北武汉430079

针对BP神经网络训练过程中的训练时间较长、完全不能训练或容易陷入局部极小值等问题,提出基于遗传克隆选择算法(CLOGA)优化BP神经网络的流程,克服BP算法的一些缺陷。并通过湖北省人口预测问题进行效果检验,得到满意的结果。

关键词：遗传克隆选择算法 BP神经网络地理信息预测

基于二次招/投标协议的Agent联盟形成策略

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微电子学与计算机 2009年第8期26卷 163-165,170页

作者：秦海鸥盐城师范学院信息科学与技术学院江苏盐城224002

为了克服目前Agent联盟形成策略存在的一些缺陷,提出了一种基于二次招/投标协议的动态Agent联盟形成策略.该策略采用二次招/投标法形成动态联盟,能够在满足子任务时间约束的条件下,充分发挥Agent的并行执行能力;并使得Agent能够动态加... 详细信息

为了克服目前Agent联盟形成策略存在的一些缺陷,提出了一种基于二次招/投标协议的动态Agent联盟形成策略.该策略采用二次招/投标法形成动态联盟,能够在满足子任务时间约束的条件下,充分发挥Agent的并行执行能力;并使得Agent能够动态加入和退出联盟,从而提高了Agent的利用率,保证了自利Agent自身利益的最大化.最后在AgentTool环境下进行协议仿真验证,实验结果表明该协议不存在死锁、活锁和死循环.

关键词： Agent联盟招/投标任务分解协议验证