Interannual Comparative Study on the Zooplankton Community Structure in the Adjacent Area of Yangtze River Estuary in Summer

摘要 海洋浮游动物（MarineZooplankton）是指被动漂浮于水层中的异养型生物群，在海区中有数量大、种类多、分布广的特点，是海洋生物的重要组成部分。本文根据2014至2016年每年7月在长江口邻近海域的综合调查资料，分析了该海区夏季浮游动物的种类组成、丰度和优势种等群落结构特征，并综合多元统计方法、聚类、MDS标序和DCCA分析，探讨浮游动物群落结构与环境因子的关联性及其年际变化的驱动因素，并且利用连续分层采样数据与潮汐数据结合，探讨了潮汐涨落对浮游动物群落的影响。主要获得的成果如下： 1）本研究共鉴定大、中型浮游动物161种，浮游幼体47种，合计208个种类；中、小型浮游动物1...Abstract Marine zooplankton is a group of heterotrophic biotawhich floated in seawater. It’s characterized by large quantity and wide distribution in ocean. This research analyzed the community structure,which includes species composition,abundance and dominant species of zooplankton based on the comprehensive survey data at the Yangtze River estuary and adjacent waters in every July from 2014 to...学位：理学硕士院系专业：海洋与地球学院_海洋生物学学号：2232014115134

长江口邻近海域夏季大中型浮游动物物种多样性、年际变化及其影响因素

利用2014—2016年毎年7月在长江口邻近海域进行的大面调查所采集的浮游动物样品,对该海域夏季大中型浮游动物的种类组成及种数平面分布进行了分析,同时结合环境参数,研究了种类组成、种数平面及年际变化的影响因素.研究结果表明:长江口邻近海域3年共鉴定大中型浮游动物165种,隶属7个门的17个类群;桡足类和水螅水母类是每年夏季优势类群;调查区大中型浮游动物种类分布大致呈现近岸低、远岸高、南部高于北部的特征;大中型浮游动物种类数没有明显的年际变化,但是种类组成有明显的年际更替.Pearson相关性分析结果显示:盐度、温度和溶解氧是影响大中型浮游动物种类数平面分布的主要环境因素;复杂的水文环境及台风过境的剧烈影响可能是造成该区域大中型浮游动物种类组成年际变化的主要原因.国家自然科学基金(41676133,J1310037);;福建省自然科学基金(2016J01196);;国家海洋局近岸海域生态环境重点实验室项目;;厦门大学校长基金(20720170077);厦门大学大学生创新创业训练计划项目(201610384120,103842017046

The Study on Copyright Protection for Computer Fonts

近年来，相关字体设计企业指出社会上盗版、侵权现象盛行，相应的司法保护力度不够，导致字体从业人员辛勤的智力成果得不到合理的回报，以至企业的生存环境严峻。尤其在“方正诉宝洁案”出现后，相关的字体设计企业纷纷呼吁加强字体设计产品的著作权保护，甚至诉求“字体单字”能独立构成美术作品，以至更好地保护字体设计企业的权益。但我国《著作权法》并未对中文字体及字体单字明文规定属于著作权法保护之作品范畴，针对中文字体、字体单字能否受著作权法的保护，理论界、实务界仍存在巨大分歧。本文主要探讨中文字体及其单字是否应属于著作权法保护之作品范畴。 本文第一章为“中文字体知识产权保护的必要性分析”。在本章中，以域外对字体...According to some Font design enterprises, because of the insufficient corresponding legal protection, the phenomenon of piracy and infringement have been prevalent in the society in recent years, which results in the intellectual achievements of the font professionals are not reasonably paid back, and thus the living environment for related enterprises is severe. In order to have their benefit a...学位：法律硕士院系专业：知识产权研究院_法律硕士(JM)学号：3252010115344

基于全光谱分析的水质化学耗氧量在线监测技术

针对水体中化学需氧量在线监测的迫切需求;设计了一种基于全光谱分析的水质化学耗氧量监测系统.该系统通过测量已知化学耗氧量的水质吸收光谱;利用最小二乘法建立吸光度与化学耗氧量的传输方程;针对待测水样;通过已建立的传输方程来反演水体化学耗氧量的浓度.通过模拟复杂水样进行化学耗氧量值测量;并将测量值与实验室结果进行比较;验证了该系统的可靠性.结果表明;该全光谱法水质监测系统不需要消耗任何试剂;无二次污染;测量准确度高、速度快;可广泛应用于水质化学耗氧量的实时、现场监测分析

In Vitro Metabolism of Medroxyprogesterone Acetate with Human Liver Microsome and Comparison with Rat,Minipig Liver Microsmes and Recombinant Human CYP3A4

Objective: To study the metabolism of medroxyprogesterone acetate (MPA) in human liver microsomes and compare the metabolim profile with rat, minipig liver mcirosomes and recombinant human CYP3A4. Methods: 100μM MPA was incubated with 0.5mg/ml liver microsomes or recombinant human CYP3A4 for 30 min, the metabolites were analyzed by HPLC and LC/MS/MS. Qualification of each metabolite was performed by the calibration curve of their parent compound MPA. Kinetic parameters were calculated for these main metabolites. Metabolism profiles of MPA by human, rat, minipig liver microsomes and recombinant human CYP3A4 was compared. Results: Five main metabolites (M1, M2, M3, M4, M5) of MPA were isolated by HPLC. Molecular weight was identified by LC-MS to be 418, 402, 402, 402 and 384. The metabolism of MPA was linear in time range of 0-10 min and in human liver microsomes concentration of 0-0.3 mg/ml. Kinetic parameters was calculated, the range of Km was from 7.7 to 11 μM, the range of Vm was from 0.057 to 0.44 nmol/min/mg. Recombinant human CYP3A4, and liver microsomes from human, rat, minipig have rather similar metabolism profiles of MPA though a slight differences were observed. Conclusion: Five main metabolites was found when MPA was metabolized by human liver microsomes. MPA metabolism profiles of recombinant human CYP3A4, liver microsomes from human, rat, and minipig were rather similar. (Supported by the DUT-DICP scientific cooperation fund and the 973 program 2003CB716006 of the Ministry of Science & Technology of China

Determination of Ammonia in Water by Sequential Sampling and Flow Injection Spectrophotometry

将顺序进样与流动注射分光光度法相结合;研发了氨氮自动在线检测仪;用于测定水中氨氮质量浓度。实验结果表明:当进样量为0.39 mL、显色剂体积为0.33 mL、停留时间为5 min、载流液流量为2.0 mL/min时;氨氮质量浓度ρ与吸光度A在氨氮质量浓度为0～15.00 mg/L的范围内呈良好的线性关系;标准工作曲线方程为A=0.019 2ρ+0.236 2;相关系数为0.999 3(n=11);检出限为0.020 mg/L;相对标准偏差为0.50%～2.38%;实际水样的加标回收率为94.5%～106.0%

Research on a submersible oil-in-water detection probe based on ultraviolet fluorescence analysis technique

介绍了一种基于紫外荧光分析法的水中油类污染物的检测传感器的设计。重点介绍了该传感探头的检测部分和控制部分的设计,检测部分由紫外发光二极管和探测器等组成信号采集装置,控制部分通过采用运算放大器、滤波器以及模数转换器实现了对微弱信号的高精度放大和处理。紫外荧光分析法具有快速、非接触性检测、操作简单、绿色环保无污染等优点,结合单片机技术在工程上有广泛应用