Study on speciation and distribution of heavy metals in surface sediments from Shacheng Bay, Dongshan Bay and the area east to Dongshan Island, Fujian Province

沉积物中重金属污染问题备受关注，因为重金属具有生物毒性、难降解性和易累积性的特性，近岸沉积物是重金属的重要归宿。了解沉积物中重金属的含量、形态分布对于探寻近岸沉积物重金属的来源、评价污染现状及其生态风险具有重要的意义。 本研究以福建东山岛以东海域、东山湾及沙埕湾表层沉积物为研究对象，分析Cr、Co、Ni、Cu、Zn、Cd、Pb这7种重金属在三个研究海域表层沉积物的平面分布、来源、形态分布及其生物可利用性，并基于重金属总量和形态分析对研究区域的重金属污染水平和潜在生态风险进行了评价。结论如下： 三个研究区域表层沉积物中Cr、Co、Ni、Cu、Zn、Cd和Pb的平均含量均高于花岗岩的全球标准；...Heavy metal pollution in sediments has received extensive attention due to their toxicity, hard degradation and easy accumulation. Therefore, it is necessary to investigate the content, distribution and speciation of heavy metals in coastal sediments where heavy metals accumulating, which will make a great contribution to understand the heavy metal resources, pollution status and potential ecologi...学位：理学硕士院系专业：海洋与地球学院_海洋化学学号：2232012115130

Mapping High-involved Wechat Users' Mental Models with ZMET

后微博时代以微信为主的即时通讯手机应用迅速崛起，创建了一个全新的移动社交平台，移动终端与社交网络的结合必定激发出全新的沟通模式和情感体验，涉及了认知、情感、行为方面的一系列影响。为了探究潜在于微信使用者情感涉入之下的心智模式（MentalModels），本研究在具体操作层面上采用一种崭新的用户研究方法:隐喻抽取技术（ZaltmanMetaphorElicitationTechnique，简称ZMET），通过视觉隐喻和图片想象引导出高卷入微信使用者的使用感受和想法。研究的贡献不仅在于为社交媒体研究引入了新的视角，研究所得还可以为进一步的量化研究奠定基础。此外，从隐喻提取技术获得的丰富的影像资料还...WeChat,a main IM(Instant Message) mobile application,develops so rapidly that it has been forming a completely new social platform at the post-Micro blog time . The integration of mobile devices and social network has been creating an innovative way of communication and whole new experience, which implies a series of impact in terms of cognitive, emotion and behavior. In the quest to understand th...学位：文学硕士院系专业：新闻传播学院_广告学学号：3192012115283

Optimizing the Financing and Integration of the Company Mergers and Acquisition

大型并购特别是跨国并购往往有两大难题，一是巨额的并购资金从何而来；二是企业并购后的整合与运营。迎战这两大难题是本文的行文出发点。本文是一篇应用性论文，它力求能为中国并购实务界提供系统性理论参考以及实务经验的借鉴。本文以产业演进作宏观统筹，并购原则和标准步骤作为引导，着重研究并购方法和融资结构以及整合优化。本文第一章分析产业演进的规律和各演进阶段的并购经验，以及企业如何据以确定并购战略。第二章简要阐述并购原则和并购经验性的标准步骤，为本文后续章节提供系统思维。第三章研究并购方式的选择和并购融资方案的优化，提供了中外并购前沿的实践经验，结合案例进行实战研究。并购方法有六种，这六种方法可以单独或混合...There are two tough issues in the big mergers and acquisitions, especially the M&A aboard. One problem is about the source of the money, the other is about the integration and the operation after the merger. To tackle the two difficult problems is the intention of the thesis. This thesis is an application article, which aims to provide some systematical theory and practical experiences as the ...学位：工商管理硕士院系专业：管理学院会计系_会计学学号：20031106

Design of the Multi-Purpose Detection System based on DSP

随着人们质量意识的提高，检测系统在质量监督体系中的位置越来越重要。相比国外检测系统的发展，国内检测系统在一定程度上还是比较落后的，本文参考现有设备的特点，提出多用检测平台的概念，研究设计一种基于DSP的多用检测平台，它能适应企业生产需求，具有一定的研究意义和实用价值。本课题的主要任务是研究设计一个基于DSP的多用检测平台，根据软硬件的交叉设计方法完成平台的软硬件设计开发。论文的主要工作是：1.分析当前国内外检测系统的发展现状及其趋势，针对国内相关系统的情况，提出一个基于DSP的多用检测平台的设计方案，来实现对传统的针对性强的单一检测系统的改进。2.根据系统特点要求，选择TI公司的TMS320V...With the development of the people’s awareness, the detection system becomes more and more important in the quality supervision system. Compared with the development of foreign detection system, domestic detection system is still backward to a certain extent. Refered to the features of existing equipment, this subject proposes the concept of the multi-purpose detection platform, and designs the mu...学位：工学硕士院系专业：物理与机电工程学院机电工程系_机械电子工程学号：2005130171

Models of online advertising operation and strategy based on LBS applications

lbS(基于地理位置服务)应用嵌入广告,为信息增加了地理标记维度,促使消费个体到达目的地产生行为,并同步在线记录和分享,引发了关系链的形成和维系、信息获取方式以及消费行为模式的极大变革,促使网络广告策略作出回应。本研究针对lbS应用的网络广告案例进行梳理,总结出基于lbS广告运作的4种典型模式。并对4种典型模式作进一步探讨,提出lbS网络广告策略的突破口:以框架取代单边运作模式;整合线上线下资源使其良性互动;利用消费行为的显现扩大消费集群效应;以区隔创造价值,设计激励与回报机制,凸显精准个性的营销沟通。LBS(location based service) applications embedded in ads have been adding location information and introducing the individual to reach the destination.Furthermore, consumer can synchronize online records and share in social networks.LBS has been changing the formation and maintenance of the relationship chain, access to information, and consumer behavior patterns so deeply that it may prompt online advertising strategies to change.In this dissertation, LBS online advertising is divided into four types based on distinctive combinations.Advertising communication marketing strategy needs several breakthroughs: replacing the unilateral mode of operation by the integrate work, integrating the online and offline resources to enable positive interaction and expanding consumption cluster effect, through which to create special value.Furthermore,designing incentive and reward system.Thus, we can highlight the precise personalized marketing communication

The Role of Quality Control Circle in Shortening the Waiting Time of the First Infusion to the Clinical Department

目的探索品管圈在缩短静配中心首批输液送到临床科室等候时间中的作用,提高静配中心工作效率,提高临床科室和患者满意度,提高药学服务质量。方法成立品管圈小组,选定品管圈主题,依据品管圈基本方法开展品管圈活动。对静配中心首批输液送到临床科室等候时间长进行原因分析,找出影响因素,制定并实施对策,分析活动持续改进后的效果。结果开展品管圈活动后,有形成果中改进流程前后对比,平均每袋输液配置的时间缩短了0.2分钟。规范医嘱,利用信息技术输液批次系统上线前后对比,准时出科的科室数量比例提高了28.65%。优化物流,增加人员配送,平均每天的物流时间缩短了20.5分钟。无形成果中在患者满意度、输液及时准确性、临床投诉次数、药师责任心、团队合作能力等都有正向提高,显著缩短首批输液送到临床科室的等候时间。结论品管圈促进了输液质量的持续改进,提高了静配中心全体员工的合作能力,对静配中心的管理具有重大意义。Objective To explore the role of quality control circle in shortening the waiting time of the first infusion to the clinical department and improve the work efficiency of static allocation center, the satisfaction of clinical departments and patients as well as the quality of pharmaceutical care. Methods A quality control circle group was set up, the subject of quality control circle was select and quality control circle activities according to the basic method of quality control circle was carried out. The reasons for the long waiting time of the first infusion to the clinical department were analyzed, the influencing factors were found, and the countermeasures were formulated and analyzed, and the effect of continuous improvement was analyzed. Results After carrying out the quality control circle activities, the improvement process of tangible results was compared with before and the average time of each bag infusion configuration was shortened by 0.2 minutes. With the standard physician order,after the use of information technology and infusion batch system, the proportion of punctual delivery to departments wasincreased by 28.65%. The hospital had optimized the logistics and increased the delivery personnel so that the average daily logistics time had been shortened by 20.5 minutes.In the intangible achievement,the degree of patient satisfaction, timely and accurate transfusion, the number of clinical complaints, pharmacists＇ sense of responsibility and team cooperation ability were positively improved which significantly shortened the waiting time of the first infusion to the clinical department. Conclusion Quality control circle promotes the continuous improvement of infusion quality, improves the cooperationability of all personnel in static distribution center and is of great significance to the management of static distribution center

福建省安海湾、围头湾海域表层沉积物重金属含量分布特征及潜在生态风险评价

对2017年4月采集的安海湾、围头湾表层沉积物中7种重金属Cr、Co、Ni、Cu、Zn、Cd、Pb含量进行测定,结果显示,这7种重金属的含量平均值依次为96. 99、13. 35、33. 53、39. 68、132. 87、0. 17、39. 10μg/g;除Co外,其它重金属含量平面分布总体呈现由西北向东南降低的趋势,在靠近陆域的东南部有少量回升,可能与陆源输入有关,Co的分布特征没有明显的规律性;调查站位中Cd和Pb含量均符合第一类海洋沉积物标准,Cr、Cu和Zn含量符合第一类海洋沉积物标准的站位分别占35%、71%、71%,其余站位符合第二、三类海洋沉积物标准.利用主成分分析法分析安海湾、围头湾中重金属的主要来源,结果显示,Cr、Cu、Zn、Cd和Pb主要来源于人为排污输入,Ni主要来源于岩石风化等地球化学过程和人为排污输入,Co主要来源于岩石风化等地球化学过程.采用潜在生态危害指数法评价安海湾、围头湾重金属污染程度和潜在生态危害,结果显示,研究区域内的综合潜在生态风险评价为强生态危害,应该采取相应措施控制污染源加强环境保护

Construction of Donor Plasmid in the Gene Integration Platform System for Oryza sativa L.

提高水稻产量，改良稻米品质是育种学家广泛研究的课题.随着现代生物技术的发展，水稻已成为植物基因工程的重要研究对象.许多实验室已成功地建立了一系列供外源基因转化水稻的系统.但是这些转化系统主要应用TI质粒衍生的载体，通过T-dnA左右两端的序列将目的基...Many laboratories have set up several foreign gene transformation systems for rice.But these transformation systems were all used T DNA system of Ti plasmid, then the foreign gene integrated into plant genomes DNA by means of the insertion of both ends of T DNA.The integrated target of T DNA in plant genome DNA is random, while the thoroughly random integration would interfere with self stable system of plant genome, which could lead to pernicious mutation.In this study, according to the mechanism of homologous recombination, we had constructed a new donor plasmid for indica rice.It would cause the foreign gene intergated into chromsomal rDNA locus. According to the known sequence of ribosomal DNA, we cloned the 2.5kb fragment of it by PCR, and used the fragment as the integrated homologous sequence.After subcloning foreign DNA including nptII gene and metallothionein gene at the end of homologous fragment, the donor plasmid pURKMT which will integrate into the genomes DNA of indica rice was constructed.Then, donor plasmid pURKMT was introduced into calli of indica rice (Jiahe NO.7) by electroporation.Screened by kanamycin, the transformant calli which was integrated the foreign DNA were selected.Dot blotting data showed that the foreign DNA including nptII gene and MT gene has integrated into rice genome DNA

Study on Absorption of Cu~(2+) by Inorganic Colloid of Brown Desert Soil in Xinjiang

选用采自新疆阿克苏地区典型的棕漠土壤,用模拟吸附方法研究棕漠土无机胶体在不同阴阳离子作用下对Cu2+的吸附特征,得出:棕漠土无机胶体对铜的等温吸附曲线可以用Langmuir等温方程式拟合,解吸后,铜在胶体内的残余量与加入溶液的浓度呈很好的一次函数关系;随着加入支持电解质浓度的增加,胶体对铜的吸附量逐渐减少;不同电解质溶液对土壤无机胶体吸附铜的影响不一样,在Cl-存在下,对铜竞争吸附的影响K+>NH4+>Na+;当支持电解质阳离子浓度相同时,阴离子对胶体吸附铜的影响都为SO42->Cl-This paper chose typical brown desert soil from Aksu,Xinjiang,studied the absorption of Cu2+ by inorganic colloid,the results as follows: Isothermal adsorption curve of copper absorbed by brown desert soil can match with Langmuir equation well,after desorption the relationships between original Cu2+ concentration and remainder Cu2+content in colloid was a linear function.With the increasing of electrolyte strength,the absorption quantity of Cu2+ by colloid decreases gradually;Different compounded negative ion and positive ion have different influence on copper absorbed by colloid.When negative ion is Cl-only in solution,the order of the influence on copper absorption is K+>NH4+ >Na+.SO42-on copper absorption is higher than that of Cl-