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The authors found various factors that affect the shapes and distribution of hydrothermal plumes from various field measurements of events and analyzed various hot topics of oceanographic research such as hydrothermal black smokers and extreme ophiles,which provides a basis for the investigation and theoretical study of deep-sea hydrothermal activity.

本文对海底热液活动的调查研究过程和现状进行了回顾,重点分析了热液喷溢动力过程的理论研究成果,从实测事件数据的研究成果中找出了影响热液柱的形态和分布的各种因素,并对热液烟囱和极端温度微生物等海洋学研究热点进行了分析,为深海热液活动调查和理论研究提供基础。

The different fishes which are employed in the present studies are wild-type salmon, cultured salmon of freshwater and seawater, sea perch and fat greenling. The complete CT gene sequences of salmons are obtained by PCR amplification. The partial CT sequences of sea perch and fat greenling are obtained by in vitro cloning PCR method. Alignment of obtained CT sequences with other fish CT shows that CT appears to be well conserved among the same family. And the relative in taxonomy is far away, the similarity of different fish CTs is low. On the contrary, the closer the relative in taxonomy is, the higher the similarity of different fish CTs is. The sCT is expressed in pGEX-4T-X by recombinant form . We also succeed in the research of sCT expression alone by expression PCR. In addition, sCT antiserum is obtained using GST-sCT as antigen, and the high titer is tested by double immunodiffusion. In the rat bioassay, administration of 50 μg recombinant protein evoked significant hypocalcemia at 1 h after the data are analyzed by t-test.

本文用PCR方法克隆了野生鲑鱼、养殖鲑鱼的降钙素基因,并应用体外克隆PCR的方法首次克隆出鲈鱼、六线鱼降钙素的部分基因序列,通过对克隆的降钙素序列的比较研究,结果显示同一科的鱼降钙素序列保守性较高,同时,根据降钙素的部分氨基酸序列进行了降钙素相似性的比较研究,结果显示在分类学上,分类地位较远的鱼,其降钙素相似性较低,分类地位越接近的鱼,其降钙素相似性越高;我们利用谷胱甘肽S-转移酶(Glutathions S-transferase,GST)融合表达载体pGEX-4T-X对克隆的鲑鱼降钙素基因进行了融合表达研究,应用表达PCR的方法对降钙素基因的独立表达进行了初步的研究探索,并将纯化的融合蛋白作为抗原,获得了高效价的兔抗鲑鱼降钙素免疫血清;生物活性研究表明,大肠杆菌表达的融合蛋白具有显著的降血钙作用。

In this study, we try to find out the relation between campus culture and medico's humanism quality, discover the weak points, and then bring forward some advice about how to strengthen campus culture in high medical colleges. Through the research, we aim to provide a reference for medical students education. The latest researches of philosophy, systematic science, sociology, medicine, education, management and psychology have been used for reference in this study, including numerous methods such as contrast research, literature analysis, theory analysis, questionnaire, software, etc.

本课题研究力图以马克思主义为指导,借鉴哲学、系统科学、社会学、医学、教育学、管理学、心理学等相关学科的最新研究成果,综合运用比较研究、文献分析、理论分析、问卷调查、Spss10.0软件统计分析等研究方法,通过对校园文化内涵、结构、特点、功能等方面进行研究,探求校园文化与医学生人文素质培养之间的功能关系,找出不足,学习成功经验,提出加强高等医学院校校园文化建设的建议,希望能为提高医学生培养质量提供参考。

The first part states in a comprehensive way the research on Zhou Zuoren so as to define the purpose, methodology and significance of the dissertation. The second part analyzes the experience of Zhou's self-culture creation from a personal angle-Yue culture in Zhejiang gave Zhou a perceptual knowledge of folklore, while the idea of world folklore gave him a rational cognition of folk' culture. The combination forms a dual folklore. The third part observes Zhou Zuoren's examination of literarure from folklore's perspective as well as its pioneering significance. The fourth part explores in a further way Zhou's perspective of folk culture, and analyzes the method he has established to conduct literary criticism from the angle of folklore as well as his research on Chinese Culture. The fifth part analyzes the impacts folklore theory and folk culture have on the formation of Zhou' literary ideas, focusing more his folklore interpretation and humanism perspective about the origin and hist ory of literature, also his literary aesthetic standards about "ordinary humanism" and "loving amusement" from the position of folklore. The sixth part expounds Zhou's achievement in combining literature and folklore and explores the consistency of their focus on human, thereby presenting a complete picture of Zhou's literature. The last part generalizes the revelation drawing from the research done in this dissertation.

本文分为六章:第一章综述周作人研究的历史与现状,从而确定本文的研究目的、方法及意义;第二章从社会、时代背景、区域文化传统和个人文化选择的角度,阐释周作人选取民俗学视角观照文学的原因,侧重分析周作人自我文化建构的心路历程——浙江越文化传统的浸润给周作人以民俗学的感性认识,而世界民俗学的理念赋予他注重民间文化的理性精神;第三章考察周作人的民俗学研究及先锋意义;第四章进一步探讨周作人的民俗文化观,分析他确立的从民俗文化角度进行文学批评的方法,兼及他从民俗学视角进行的中国文化研究;第五章分析民俗学理论及民俗文化观在周作人文学思想生成中的影响,着重论述周作人关于文学起源和文学发展史的民俗学阐释、文学的民俗人性观,以及从民间立场出发所具有的"平凡的人道"、"有情的滑稽"等文学审美原则;第六章从创作实践方面,探讨周作人文学作品的民俗文化意蕴,进一步论述周作人将文学与民俗结合在一起的实绩,并揭示二者以"人"为核心的内在精神的一致性,从而呈现出周作人较为完整的文学风貌;最后是余论,指出这一研究的启示。

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结,并分析了虹吸式排水系统的优势;再对虹吸式排水管道进行原型试验研究,采用不同管径不同立管高度,对系统流量、管道压强进行量测,观察了各种工况下的流态,对其水力特性进行研究分析,找出影响水力特性的落差、管径主要因素以及与排水量的关系;进一步应用计算流体力学Fluent软件,采用标准κ-ε模型与RNGκ-ε模型,计算过程应用有限体积法和二阶迎风格式对数值模型进行离散,速度和压力的耦合采用SIMPLE算法,分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析,通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究;本文首次采用结合原型试验与数值模拟相结合的方法,对虹吸式屋面雨水排水系统进行研究,试验与模拟相互验证,并进行拓展,很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题,结果正确合理,为排水管网系统设计和优化研究提供了有效的方法,对工程设计有较好的参考价值。

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状;然后,将供应链系统作为一个复杂系统来分析,确定了系统运行过程中所经历的状态,通过引入补充变量的方法,建立了用偏微分方程组描述的分布参数系统模型,用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式,证明了系统解存在的唯一性、非负性和指数阶渐近稳定性;并借助Matlab工具,利用二阶、三阶辛普森积分方程模拟系统解的性态,并给出系统动态解的仿真图;本文又对上述系统增加了系统可能失效状态和优化调整状态,并在此基础上建立了用偏微分方程组描述的分布参数系统模型,同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究,得到系统动态解和稳态解的数学表达式,证明了系统动态解存在的唯一性、非负性及渐近稳定性,为进一步分析和研究供应链优化奠定了理论基础。

Beginning with wave equation, the paper has deduced the propagation of gauss pulses in single mode fiber and fiber grating transmission compensation. The characteristics of cascaded phase-shift gratings are discussed by numerical simulations of coupled-mode theory and T-matrix method. The experimental works and measurement results are shown in this paper. On the other hand, we have introduced the basic theory of EDFA and figured out the characteristics for EDFA at different conditions by numerical simulation. Some experimental results for EDFA are also presented here. In this article, you can find the influence on Optical Fiber Amplifier by Gain Tilt, especially, the negative effect on CSO in CATV transmission system.

论文首先从波动方程入手,对高斯脉冲在单模光纤中的传播演化及光纤光栅透射补偿进行了详细的研究;较系统地介绍了光纤光栅的耦合模理论,并将传输矩阵计算法用于计算级连相移光纤光栅的光学特性;重点介绍了作者在光纤光栅刻制及特性测量方面所做的一些实验研究工作;较系统介绍了EDFA的基本理论,计算出各种条件下EDFA的光学特性,并进行了一些实验研究;综合分析光纤放大器对光纤传输系统的影响,特别分析了光纤放大器增益不平坦对光纤CATV系统中CSO恶化的原因及其解决方法,并研究了光纤布拉格光栅在稳定980nm泵浦源输出功率和输出波长方面的应用;结合一个基于光纤光栅和光纤放大器的光纤用户接入网方案,对光纤用户接入网的若干问题进行了理论与初步的实验研究。

The first chapter presents a comprehensive study of nonholonomic dynamics. They are studied that the nonlinear problem and un-determinate problem of virtual displacement in nonholonomic system in the second chapter. In chapter 3, they are studied that Chetaev model and Vacco model in nonholonomic system.

第一章对非完整动力学研究的有关现状进行了综合评述;第二章研究了非完整系统虚位移关系的不定性问题与非线性问题;第三章比较研究了一般非完整系统的Chetaev模型和Vacco模型;第四章研究了本质线性非完整系统的Hamilton原理;第五章给出了本文的结论与有关研究的展望。

Taking Changling County, Zhenlai County and Da'an City of Jilin Province as researchareas, based on remote sensing data, graphics operation and spatial analysis are carried out indifferent points of views, including temporal, spatial, scale and landscapeetc; all aspects analysis of this dissertation are abstractively expressed by digital graphics andseries of curves which are not stick to one pattern to discussing multi-dimension andcomplicated attributes of the salinized process. Linking up temporal-spatial characteristicswith landscape indices while combining mathematics model and Geo-informatic TUPUmodel, this dissertation puts forward the fundamental frame: temporal-spatial evolvementpattern, spatial extension process analysis and landscape characteristics analysis of salinizedland. Temporal-spatial evolvement pattern analysis extracts the essential quantity features andtransformation modes of salinized land, and also analyzes patches spatial geometricalparameters scale feature; spatial extending process analysis discusses the change rate andecological modes; landscape feature analysis utilizes landscape graphics indices to describesalinized land microcosmic graphics features and changes.

信息图谱模型为土地盐碱化研究提供了一种谱系化、定量化与定位化相结合的研究方法,本文选取吉林省西部盐碱化典型区域长岭县、镇赉县、大安市作为研究区,以遥感影像为基础数据,在GIS技术支持下,从时空变化、尺度效应、景观特征等多个角度对盐碱化土地进行图形运算、空间分析,通过不拘一格的数字化图形、曲线系列抽象表达出不同维度上的特征与规律,探讨土地盐碱化过程的多维性与复杂性,将盐碱化土地时空特征与景观特征衔接、数学模型与图谱模型结合,以盐碱化土地时空演变基本模式、空间扩展过程和景观特征分析为框架构建盐碱化土地信息图谱模型研究体系,发挥图谱模型数据挖掘、知识发现的特长,将宏观动态变化与微观特征相联系,进一步挖掘土地盐碱化过程与人类活动影响的关系,为探索研究区盐碱化土地成因、过程,预测其未来发展变化趋势及其对环境影响提供相关科学依据。

Asked by Medscape Oncolo gy to comment on this finding, Jayne Franklyn, MD, PhD, from Queen Elizabeth Hospital, in Birmingham, United Kingdom, who was not involved with the study, said:"This is an important study, as it involved a large number of patients with a relatively rare form of thyroid cancer, specifically looking at those with the sporadic or noninherited variety of this cancer, and it presents the intriguing possibility that the presence of the mutation is associated with a prediction of tumor behavior and therefore prognosis."

Medscape肿瘤学邀请英国伊丽莎白皇后医院的Jayne Franklyn医师对此发现进行评论,未参与此研究的Franklyn医师表示,这是一个重要的研究,因为它纳入了此一少见甲状腺癌的许多病患,特别是此癌症的偶发或者非遗传变化,且展现出突变与预后有关的可能性;此外,该研究有潜在的临床冲击,但是首先,这些发现需要有其他研究证实重现;这项研究也指出各种甲状腺癌的基因突变与基因表现可提供预后资讯的远景。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

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