研究

Orange-spotted grouper is a benthic protogynous marine fish with sex inversion. It is one of the most important culturing fish in the southeast of Asia. As in other vertebrates, its growth is mainly controlled by growth hormone . Few data are available concerning the regulation of GH in grouper. In this paper, the regulation of growth hormone release from pituitary of orange-spotted grouper and its mRNA level was determined by radioimmunoassay and RNase protection assay.

中文题名斜带石斑鱼生长激素分泌及其基因表达调控的研究副题名外文题名 Regulation of growth hormone and its gene expression in orange-spotted grouper，Epinephelus coioides 论文作者冉雪琴导师林浩然学科专业水生生物学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2003 论文页码总数140页关键词生长激素基因表达石斑鱼馆藏号BSLW /2003 /Q959 /39 应用分子克隆技术，构建了斜带石斑鱼生长激素(Growth hormone，GH)基因重组质粒，在大肠杆菌细胞中获得高效表达，亲和层析纯化斜带石斑鱼GH融合蛋白做为抗原，免疫家兔制备特异性抗体，通过酶联免疫实验、放射免疫测定、离体脑垂体静态孵育和液相杂交／核糖核酸酶保护试验及化学发光检测技术，研究了斜带石斑鱼GH分泌及其mRNA表达的调控机制，对于斜带石斑鱼的生长、繁殖、人工养殖等具有重要意义。

Three infectious bronchitis virus isolates named as Q1, J2 and T3 were isolated from proventricular tissue taken from vaccinated chicken flocks in China The biological characteristics of the three isolates were observed.

中文题名传染性支气管炎致腺胃病变毒株变异的分子基础及我国和东南亚分离株的分子流行病学研究副题名外文题名 Molecular basis for variation of proventriculus pathogenic IBV isolates and molecular epidemiology of IBV isolates from China and southeast Asia 论文作者蒋贻海导师陈溥言教授学科专业预防兽医学研究领域\研究方向动物分子病毒学及免疫学学位级别博士学位授予单位南京农业大学学位授予日期2002 论文页码总数127页关键词鸡传染性支气管炎传染性支气管炎病毒腺胃毒株馆藏号BSLW /2003 /S855 /9 从我国接种过传染性支气管炎疫苗的幼鸡群的腺胃组织中分离得到三个传染性支气管炎毒株Q1、J2和T3，并对它们的部分生物学特性进行研究。

This paper also brings forward the strategic target of planning and designing the green system in this region to provide reference and guidance for planning work. Based on GIS, this paper analyzes landscape spatial pattern, dynamic pattern and landscape functional division. And it holds out the planning project to major the structure of green system in the research zone. And that is the core content in this research. There is peculiar sense to represent and extend the psammophyte garden in justifying the agriculture framework in the research zone. So this paper takes the psammophyte garden as a concrete unit to proceed landscape eco-designing.

在对研究区的自然、社会环境及其景观生态基本特征等深入分析的基础上，提出了该地区绿地系统景观生态规划与设计的目标，为规划工作提供依据与指导；在地理信息系统支持下，进行景观生态分类与制图、景观空间格局及其动态分析以及景观功能分区，在此基础上提出研究区绿地系统结构优化的规划方案，这是本研究的核心内容；由于沙生植物园区的示范推广对研究区的农业结构调整具有特殊的意义，因此，本文以白埕村沙生植物园区作为具体单元，进行景观生态设计。

This paper made detailed studies through karyotype analysis and allozyme analysis on the materials which including 9 species of the genus Lycoris and different populations of Lycoris radiata Herb..

本研究以石蒜属9种植物以及石蒜的16个居群植物为研究材料，通过核型和同工酶研究和分析手段，对石蒜属植物种间和石蒜居群间进行了详细研究；进一步揭示了石蒜属种间以及石蒜不同居群之间的差异；为探讨石蒜属植物的系统关系和资源进一步开发利用提供基础资料。

ABSTRACT The emerging and development of resultative verb is a traditionnal problem of grammatical research which evoked heated discussions, and now it has not reached unanimity yet In this article, previous reseaches were summed up, and problems about the reseach of resultative verb were analyzied.

&动补结构的产生与发展&是语法研究的传统课题，也是历来讨论最多、争议最激烈而迄今为止尚未有定论的问题，本文全面总结了前贤时哲的研究成果，分析了目前在动补结构的研究中存在的问题，希望通过这个专题研究，对动补结构的产生、发展及相关问题有一个比较切合汉语发展实际的科学结论。

This dissertation introduces the history, key technology, current status of nation and internation ,and the importance of MiroSot ; describes function theory and constitutes of MiroSot resumptively firstly ; then introduces machine structure in detail including the characters and choice of electromotor and the design and facture of hull; stresses on control circuit of soccer robot including the choice of control circuit and DSPs, basic circuit of soccer robot and control algorithmic of soccer robot.a new design based on DSPs is made; lucubrate radio communication subsystem including the origin of yawp and controlled method in radio communication finally, and a emitter is made, and hard base has gained to upbuild experiment bed of MAS.

本论文首先简要地介绍了机器人足球比赛的发展历程、所涉及的关键技术和研究意义，概括地描述了MiroSot系统的构成；然后系统地研究了足球机器人机械结构的设计、电动机的选择、壳体的设计等，重点研究了MiroSot足球机器人的控制电路，包括DSPs芯片的选择、足球机器人硬件电路的设计和控制算法的编写，在此基础上研制了基于DSPs的足球机器人；最后深入研究了无线通讯子系统，包括无线通讯干扰噪声的来源及其抑制方法，无线发射器软、硬件的设计和制作，为全面建立多智能体系统实验平台奠定了基础。

It s educational value lies on that it is not only a visual textbook for art appreciation, but classic materials used to give the young historical revolutionarily education.

进而，本文对《地球的红飘带》展览进行了个案研究，包括选择&《地球的红飘带》展览&为个案研究之释由、《地球的红飘带》展览述要、基于本个案研究的实验和观察、个案研究的启示和推广等诸多方面。

Chapter 4 specifies the research design of the study, including research method, data description and sampling, method of identifying Theme and Rheme and research procedures.

在第四章中，作者就英汉语广告语篇主位推进模式的对比研究提出了自己的研究设计，包括研究方法、语料收集描述、主述位的分类和研究步骤。

This paper deals with systematic species investigation and quality evaluation of Rosa rugosa in Shandong- province.

本课题对山东玫瑰花进行了系统的品种调查整理和质量评价研究，从本草学考证、栽培及加工方法研究、植物学研究、药材鉴别、含量测定、挥发油成分GC-MS分析等六个方面对其进行了全面考察、研究分析。

We explore the relation between structure and activity , structure and toxicity from electronic structure and three—dimensional conformation in order to provide theoretical foundations for predicting the activity and toxicity of these chemical compounds, researching into mechanism of action and choosing safener.

通过比较四种均三氮苯类除草剂的红外光谱特征吸收的实验值和计算值，并运用规范不变原子轨道法GIAO法在RHF/6-31G水平上计算出西玛津的δ~1H-NMR和δ~(13)C-NMR，与实验值的对比统计分析，结果表明：用RHF/6-31G优化的分子构型最佳，AM1法次之，考虑到优化时间和研究的需要，我们在研究均三氮苯类除草剂分子的结构与活性关系时，为了进行深入、精确的理论研究，采用从头算RHF/6-31G进行优化；而对于此类化合物的结构与毒性的关系研究时，更注重分子的量子化学参数的相对值而非绝对值，因而采用AM1的方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。