A Study Of Zhen Dexiu’s Communication World

真德秀一生多层次的人群交往，构成多方位的交游网络，这种交游对真德秀思想、学术等方面有积极的影响：一、真德秀在继承朱子学说的基础上，不仅吸收陆象山的心学派、金华学派、功利学派、佛道等其他学派的思想对理学进一步发挥，同时也对其他学派宣扬、灌输自己的学术观点，并广收门徒，任职地方、惠政毕举，扩大了理学在民间的影响力，促进了此后理学正统地位的确立。二、真德秀交游广泛，一定程度反映了真德秀所处的南宋社会思想文化界学派林立，相互交融的一面。Zhen Dexiu communicated with diverse social groups and individuals, which constituted a complicated and multiple-level social net. During this process, his thought and academic study had been greatly influenced. First, based on the inheritance from Zhuxi doctrine, Zhen Dexiu benefited a lot from the academic development of different schools, such as Lu Xiangshan school of Mind, Jinhua school, Util...学位：历史学硕士院系专业：人文学院历史学系_专门史学号：1032006115011

中药川白芷的化学成分研究

通过各种现代色谱技术,研究中药川白芷Angelica dahurica(Fisch.)Benth.et Hook的化学成分,对川白芷乙醇提取物的氯仿萃取相进行分离纯化,得到8个化合物,根据波谱数据结构鉴定为:suberosin(1),3R,8S-falcarindiol(2),欧前胡素(imperatorin,3),异欧前胡素(isoimperatorin,4),8-甲氧基-5羟基补骨脂素(cnidilin,5),佛手柑内脂(bergapeen,6),β-谷甾醇(-βsitosterol,7),豆甾醇(stigmasterol,8).化合物1和2为首次从川白芷中分离鉴定

Nitrogen and phosphorus pollution from urban stormwater runoff in Xiamen City

以厦门岛为研究对象,通过收集代表性样点的降雨径流水样,研究了厦门城市降雨径流中氮、磷浓度及输出特征。结果表明,来源不同的城市降雨径流中氮、磷浓度差异较大,溶解态总氮、硝态氮、氨态氮与总磷的含量分别为1.96~6.77、0.62~4.89、0.35~1.18和0.04~0.66 mg.L-1。降雨过程中氮、磷浓度总体上呈下降趋势,氮浓度波动较大,磷相对稳定。城市降雨径流氮、磷污染受降雨强度、车流量等多种因素影响。城市道路、商住区及工业区径流中氮、磷浓度较高,是城市非点源污染的主要来源,因此对这些区域应重点控制管理。In this study,the stormwater samples of 4 storm events occurred in April and May 2005 were collected from different representative sites including road,roof,and residential,commercial and industrial districts in Xiamen Island.All the samples were delivered to laboratory within 24 h,and their NO_3~——N,NH_4~+-N, dissolved total nitrogen(TN),and total phosphorus(TP) contents were analyzed.The water quality data showed there was a significant difference in the nitrogen and phosphorous concentrations of the stormwater runoff from different sites, with the mean value of TN,NO_3~——N,NH_4~+-N and TP ranged as 1.96-6.77, 0.62-4.89,0.35-1.18 and 0.04-0.66 mg·L~(-1),respectively.In general,the nitrogen and phosphorus concentrations decreased gradually in the process of precipitation due to water dilution,but the nitrogen concentration fluctuated more intensively than phosphorus.Many factors such as precipitation intensity,land cover and vehicle exhaust affected the patterns of nitrogen and phosphorus transportation.The urban stormwater runoff collected from road and commercial and industrial districts contributed a higher nutrient loading,and thus,the management of urban stormwater runoff should be focused on these sites.国家自然科学基金资助项目(40301045)

Evaluation of chemiluminescence immunoassays kits for detection of influenza A virus

目的考核甲型流感化学发光检测试剂的灵敏度和特异性。方法分别利用病毒分离培养液和入境人群的鼻咽拭子标本考查甲型流感试剂盒的检测灵敏度和特异性。结果化学发光法对H1、H3、H5、H7、H9等亚型的甲型流感病毒株均有很好的检出率,灵敏度明显优于flu A-dOT和dIrECTIgEn Ez flu A;对102份入境人群鼻咽拭子标本的检测灵敏度为97.62%。结论甲型流感化学发光检测试剂具有很好的灵敏度和特异性,适用于口岸现场的甲型流感快速筛查。Objective To evaluate the sensitivity and specificity of chemiluminescence immunoassays kit for detection of influenza A virus.Methods To analyze the sensitivity and specificity of three different assay kits for detection of influenza A virus by using the viral culture liquid and nasopharyngeal swabs from entry-exit travelers.Results The chemiluminescence immunoassays kit had a good detection rate when it was tested against a panel of influenza A virus strains(H1/H3/H5/H7/H9),and its sensitivity was much better than Flu A-DOT kit`s and Directigen EZ Flu A kit' chemiluminescence immunoassays kit used for the detection of 102 nasopharyngeal swabs from entryexit travelers had a detection sensitivity of 97.62%.Conclusion Chemiluminescence immunoassays kit had good sensitivity and specificity, which was fit for the rapid detection of influenza A virus at frontier ports.国家质检总局科技计划项目(2014IK045); 厦门市科技惠民项目(3502Z20144083

新一轮教育改革和远程开放教育的发展(三)

正如很多专家学者和业内人士所认为的,在"现代远程教育工程试点"十年之际,讨论普通高校远程教育的发展问题,系统的总结与深入的反思是不可回避的。试点目标的实现与落实情况如何,十年试点中积累的主要经验、形成的主要特色有哪些,试点过程中遭遇的深层次问题是什么、有哪些矛盾至今尚未解决,远程教

窄带上行信道设计及性能测试

窄带物联网（NB-IoT）是一种具有发展前景的低功耗广域网技术,使少量的数据在相当长的时间内进行通信是NB-IoT的目标之一,也是物联网应用程序的关键特征之一。一些研究工作组已经对NB-IoT的标准进行了一些定义,例如,低功耗、广覆盖、大容量和低成本等。与原有的无线通信协议相比,NB-IoT的频谱带宽仅有180kHz,因此,如何更有效地使用资源或频谱（即资源分配和调度）是一个关键问题。文章首先对物理层上层通信进行了设计,特别是上行调度;然后,在延迟情况良好的条件下对NB-IoT的资源分配问题进行了讨论;最后,对一些开放性的问题及其对应的解决方案进行了讨论,从而保证了信号传输的可靠性