Research on Sampling Method and Elementary Analysis of TSP and PM10 in Aerosol

本论文共由五章组成：1、前言；2、大气颗粒物样品采集与物理分析；3、大气颗粒物金属元素分析；4、大气颗粒物聚类判别分析；5、福建泽泻元素分析及其属性判别研究。 在前言中，对近年来国内外有关大气可吸入颗粒物的研究现状进行了综述，主要论述了可吸入颗粒物的来源、理化性质、对气候的影响、流行病学研究以及污染源解析方法，并从采样技术方面讨论了滤料采样法对采样滤料和采样仪器的基本要求。 第二章首先对大气采样过程中的原始数据记录和质量控制问题进行了讨论，在此基础上采集了厦门市和其他地区不同粒径范围的颗粒物样品。并对不同粒径、不同时期、不同地区的颗粒物质量浓度水平进行了分析。结果显示厦门市首要污染物为可吸...The dissertation consists of five Chapters, which are preface, the aerosol collection and physical analysis, the metal elementary analysis of aerosol particle samples, the cluster and discriminant analysis of aerosol particle samples and the elementary and discriminant analysis of the Alisma orientalis(Sam.) Juzep. The current situation of the research of inhalable particles, including the so...学位：理学硕士院系专业：化学化工学院化学系_分析化学学号：20002502

一类乘积域的全纯自同构群

设Bn为n维复单位球,Um为m维多圆柱.本文利用全纯自同构将边界映为边界的这一性质,得到了乘积域Bn×Um的全纯自同构的一些必要条件,再从这些必要条件出发,成功找到了乘积域Bn×Um的全部全纯自同构.在总的思路上,本篇文章采用的是类似于得到单复变中单位圆盘的Aut(U)的方法,即把零点映为零点的全纯自同构(类似于单复变函数论中的旋转变换)与一类特殊的全纯自同构(类似于单复变函数论中的M bius变换)复合

B_2×B_2的全纯自同构群

讨论B2×B2上的全纯自同构群,并计算它的B ergm an核函数及其自同构的Jacob i行列式

Brown tide:A new ecosystem disruptive algal bloom

AurEOCOCCuS AnOPHAgEffErEnS和AurEOuMbrA lAgunEnSIS隶属于棕鞭藻门(OCHrOPHyTA)、海金藻纲(PElAgOPHyCEAE),在美国及南非的一些河口形成生态系统破坏性褐潮(brOWn TIdE)已经有20多年了,近年来在中国河北沿海发生的大规模褐潮也使中国成为世界上第3个受褐潮影响的国家。褐潮藻能够利用多种有机营养,在低光照及低营养条件下达到高生长速率,对贝类养殖产业、经济以及娱乐产业等造成严重的负面影响。本文总结了20多年来褐潮在全球的发生及其所造成的严重危害,对褐潮藻的形态结构、生理特征及分子遗传学,特别是促进褐潮形成及持续的关键蛋白的编码基因等研究作了简要介绍,并概括了国内褐潮的研究现状。在此基础上,展望今后褐潮的研究方向,以期为褐潮的研究、预警预报和生态学防治及其防灾减灾提供借鉴。The pelagophytes Aureococcus anophagefferens and Aureoumbra lagunensis have formed ecosystem disruptive algal blooms in shallow estuaries of the United States and South Africa for more than two decades.The large-scale brown tide events in the coastal waters of Hebei Province in recent years make China the third country that is affected by brown tide in the world.These algae are able to utilize a wide variety of organic nutrients and achieve high growth rates at low light and nutrient levels.They have significant negative impacts on the shellfish mariculture industry,economy and recreational industry.We review research progress in the last two decades on morphology,physiology and molecular and genomic characteristics of these brown tide algae,especially the genes that encode many of the key proteins that facilitate bloom formation and persistence.Moreover,the research progress in China about brown tide is summarized.The prospects of the research on brown tide are also discussed.海洋公益性行业科研专项(201205031-03和201005015-5); 国家基础研究发展计划项目(2010CB428704)资

DETERMINATION OF ELEMENTS' CONTENT OF RHIZOME ALISMATICS IN FUJIAN AND ITS CLASSIFICATION DISCRIMINATION

利用电感耦合等离子体质谱 (ICP -MS) ,对福建建瓯产大叶、小叶泽泻中 17种元素的含量进行了测定 ,在此基础上 ,运用SAS软件的DISCRIM过程对两类泽泻样品进行了判别分析 ,取得了良好的分类判别结果 ,利用上述方法得到的泽泻元素含量分布图谱有可能为中药材指纹图谱的建立及其规范化种植提供新的途径。element contents of Rhizoma alismatics in Jianou Fujian were determined by ICP-MS. On the basis of the results, the classification discrimination of the two sorts of Rhizome Alismatics, which were Alismao rientalis (Sam.) Juzep and Alisma canaliculatum A. Braun et Bouche, respectively. was obtained by the software of the SAS. The distribution curve of elements' content measured in Rhizome Alismatics may provide probably a new way for the standardization growth and the fingerprint foundation of Traditional Chinese Medicine.福建省青年科技人才创新基金项目 ( 2 0 0 1J0 5 3 ) ;; 福建泽泻GAP重点项目资

Comparison of gene frequencies of 15 STR loci between patients with primary gastric adencarcinomas and the unrelated locals from Xiamen

目的比较15个短串联重复序列(STR)基因座基因频率在原发性胃腺癌患者和厦门地区正常人群中的分布,推测与胃腺癌相关的基因。方法123份血样采自本地区无癌家族史的健康人群,39份血样采自本地区胃腺癌患者。用聚合酶链反应(PCR)复合扩增结合四色荧光检测方法对血样DNA进行基因型分析,调查本地区健康人群和胃腺癌患者人群的基因频率分布,并根据两者的该15个基因座等位基因频率分布的差异性,推测易感连锁和抗性连锁的等位基因。结果厦门地区胃腺癌患者的TH01、vWA和FAG基因座的等位基因的分布与该地区健康人群比较差异有统计学意义(P<0·01)。在个别等位基因比较中,胃腺癌人群TH01-7的基因频率为0·0385,健康人群TH01-7的基因频率为0·2642,两者差异有统计学意义(P<0·01),相对危险度(RR)=0·1115;胃腺癌人群vWA-15基因频率0·0513,健康人群vWA-15的基因频率0·2927,两者差异有统计学意义(P<0·01),RR=0·1307;胃腺癌人群FAG-18的基因频率为0·1026,健康人群FAG-18的基因频率为0·0163,两者差异有统计学意义(P<0·01),RR=6·8998。结论TH01-7与胃腺癌相关联,其附近可能存在胃腺癌抗性基因;vWA-15附近有可能存在与胃腺癌相关的抗性基因;FAG-18与胃腺癌相关联,其附近可能存在胃腺癌易感基因。Objective To compare the gene frequencies of 15 STR loci between patients with primary gastric adencarcinomas and the unrelated locals from Xiamen in order to search for the genes correlated to the gastric adencarcinomas.Methods The control group consisted of 123 unrelated locals and the testing group was composed of 39 gastric adencarcinomas suffers. All genotypes of the sample DNA were analyzed by gene scan technology and multiplex PCR method with 4-colored fluorescence-labeled primers. All the polymorphic alleles of these 15 STR loci in unrelated healthy locals and patients with primary gastric adencarcinomas had been investigated. The sensitive or resistant genetic factors were inferred according to the statistical difference with distribution of allele frequencies.Results It showed that there were statistic differences (P<0.01)between controls and testing groups in allele frequencies of the three loci: TH01, vWA and FAG. The further exploration of the separated locus revealed that the gene frequency of TH01-7 in the gastric adencarcinomas suffers was 0.0385,but 0.2642 in the control group[P<0.01 and relative risk(RR)=0.1115];the gene frequency of vWA-15 in the gastric adencarcinomas suffers was 0.0513,but 0.2927 in the control group(P<0.01 and RR=0.1307);the gene frequency of FAG-18 in the gastric adencarcinomas suffers was 0.1026,but 0.0163 in the control group(P<0.01 and RR= 6.8998). Conclusions It is very possible that TH01 alleles may be associated with gastric adencarcinomas and it is possible that there is a resistant gene to gastric adencarcinomas near the region of TH01-7 locus; there is a resistant gene of gastric adencarcinomas near the region of vWA-15 locus; FAG alleles may be associated with gastric adencarcinomas and perhaps there is a sensitive gene of gastric adencarcinomas near FAG-18 locus

早熟优质籼稻三系不育系伍天A的选育

【目的】选育早熟优质三系不育系,为优质稻新品种选育奠定基础。【方法】2007年早季以泉5B/天丰B的F4代为父本,与不育系泉5A测交,经过多代回交和多年观察筛选,选育早熟优质三系不育系新品种。【结果】选育出的早熟优质不育系伍天A,于2019年通过福建省农作物品种审定委员会审定(闽审稻20190047),表现育性稳定,不育株率100%,不育度99.99%;异交率高,柱头总外露率64.77%;米质优,稻米的主要品质指标:整精米率66.0%、粒长6.7 mm、长宽比3.4、垩白粒率4%、垩白度0.6%、透明度1级、碱消值7.0级、胶稠度50 mm、直链淀粉含量23.8%,其中整精米率、垩白度、透明度、碱消值均达到NY/T593-2013《食用稻品种品质》一等食用籼稻品种品质标准,但胶稠度、直链淀粉含量等指标还不够理想,需在保持其优质早熟等优良特性的基础上,对品质性状进行改造提升;早熟,播始历期均在66 d左右,与天丰A相同;配合力强,伍天A与R713配组育成的三系稻新组合——伍天A/R713于2019年通过福建省农作物品种审定委员会审定(闽审稻20190035)。【结论】伍天A是一个育性稳定、异交率高、米质优、早熟、配合力强的三系不育系,可以配制出优质、多种熟期的三系杂交水稻新组合

STUDY ON ELEMENTAL CONCENTRATION IN AIR PARTICULATE MATTER BY ICP-MS

This study conducted air particulate matter sampling to measure the total suspended particulate (TSP), PM 10 (particles<10 μmm in aerodynamic diameter) and PM 2 5 (particles<2 5 μmm in aerodynamic diameter) mass concentration at Tongan district in Xiamen. One hundred and nineteen samples were obtained to measure the mass concentrations of TSP, PM 10 and PM 2 5 during 15 April to 6 June 2002. According to these results, the TSP, PM 10 and PM 2 5 mass concentrations varied from 53 μg·m -3 (from 26 to 105 μg·m -3 ), 48 μg·m -3 (from 23 to 74 μg·m -3 ) and 41 μg·m -3 (from 18 to 62 μg·m -3 ), respectively. 18 elemental concentrations were determined by ICP MS, most elemental profiles were lower than previous studies. However, high levels of Pb and Zn indicate some pollutants existed in air particulate matter.SupportedbyYouthInnovationFoundationofFujian ( 2 0 0 1J0 5 3

Research on siderophore secreted by Prorocentrum donghaiense Lu under iron-limited conditions

在铁限制条件下,进行东海原甲藻分泌铁载体的动态研究。对藻类在富铁与缺铁条件下生长状况、生长过程中分泌铁载体的情况以及海藻接种量对铁载体分泌的影响进行了连续观测,结果表明:东海原甲藻在缺铁条件下生长状况远不如在富铁条件下;随着藻类的生长,分泌铁载体不断增多,达指数生长期时,其分泌量也达到了最大值,之后藻类的生长和铁载体分泌都呈现下降趋势;高接种量东海原甲藻能分泌较多的铁载体,并在较短时间到达峰值。Under iron-limited conditions,marine microorganisms are able to secrete low-molecular-weight,highly specific iron chelators termed siderophores.These compounds scavenge iron from protein complexes or insoluble hydroxides in the extracellular environment and transport it to the cell cytosol via a membrane-bound receptor protein in the microorganism.Iron is a necessary requirement in marine ecosystems.Therefore research on siderophores is very significant to interpretation of high nitrate low chlorophyll(HNLC) regions and iron hypothesis.However,it is not clear whether eukaryotic phytoplankton can produce the iron-specific chelating compounds.Therefore,a systematic investigation was carried out for siderophore secreted by P.donghaiense Lu under iron-limited conditions.Parameters studied included the growth of the algae in iron-added and iron-deficient medium,the secretion of siderophore during algae growth,and the effect of algae population inoculated on the siderophore production.Results showed that the algae growth rate in iron-deficient medium was slower than those in iron-rich medium.Under iron-limited conditions,the siderophore production increased along with algae growth.Maximum production was observed in the exponential growth period.Thereafter the rate of algae growth and siderophore secretion started to decrease.Furthermore,increasing algae populationt resulted in secreting more siderophore and shortening the time needed to reach maximum production.国家高技术研究发展计划资助项目(2001AA635040);; 国家海洋局青年基金资助项目(2005102);; 国家重点基础研究发展规划资助项目(2001CB409702);; 青岛市科技将材计划资助项目~

Determination of Trace Metal Elements in Crude Oils by Microwave Digestion-Inductively Coupled Plasma-Mass Spectrometry Assisted with Organic Solvent

李景喜( 1980 － ) ，男，山东临沂市人，研究实习员，从事分析化学研究。E-mail: jxli@fio．org． cn。[中文摘要]建立了二氯甲烷溶剂辅助微波消解-电感耦合等离子体质谱法测定原油中V、Cr、Fe、Ni、Cu、Zn、Mo、Co、Pb等16种微量金属元素。研究表明,用CH2Cl2分散原油样品,以浓HNO3-H2O2为消解体系,采用CEM微波消解系统消解样品,各元素线性关系良好,相关系数≥0.9995;检出限可达ng/L;方法精密度较高,相对标准偏差(RSD,n=3)<5.0%;回收率为92%～110%。以w(Ni)/w(V)与w(Fe)/w(V)比值为变量参数对不同原油样品进行聚类分析,表明国内与国外不同地区原油样品中各金属元素含量差异较大。[英文文摘]A method for determination of V,Cr,Fe,Ni,Cu,Zn,Mo Co,Pb,etc in different crude oils was established by inductively coupled plasma-mass spectrometry assisted with organic solvent microwave digestion.The oil sample was digested by microwave using HNO3-H2O2 as oxidant after dispersing in organic solvent(CH2Cl2).The results showed that the detection limits of the method reached ng/L level for sixteen elements.The linear correlation of the method was preferable with the correlation coefficient of better than 0.9995． The recoveries of the method were in the range of 92% ～ 110% with the precision of less than 5.0% RSD (n=3)．The ratios of w(Ni)/w(V) and w(Fe)/w(V) were distinct in different crude oil samples from oversea and domestic，and the index can be used to the cluster analysis for differencing the crude oil samples．国家海洋局第一海洋研究所基本科研业务费专项资助(2010G23);海洋公益性行业科研专项资助(200705011);海洋溢油鉴别与损害评估技术重点实验室开放基金资助(200920