Interpreter’s Initiatives from the Perspective of Relevance Theory

本文是从关联理论角度对口译过程中译员能动性的一次理论探索。关联理论由Sperber和Wilson于1986年首次提出，后来进行了进一步修订。关联理论从语用学的角度将交际视为一种交际者利用自身能动性寻求最佳关联的过程。交际赖以产生的基础是交际双方共同拥有的认知环境，在认知环境中交际双方通过为彼此建立具有最佳关联性的语境使得对方能够使用最少的处理努力获得最多的语境效果，从而获得交际意图，顺利完成交际。 口译是一种特殊的交际过程，交际双方同样通过创建最佳关联传达交际意图，但是碍于语言不通，只有借助译员才能推动这一进程。然而与普通单语交际者相比，译员在交际过程中承担着更大的责任，并利用了更多的能动性...The thesis is an initial attempt to discuss interpreter’s initiatives from the perspective of Relevance Theory (RT). RT was first put forward by Sperber and Wilson in 1986. A few modifications have been made since then, making it more perfect and persuasive. RT is a pragmatics approach to explore communication as a process of search for optimal relevance with initiatives from communicators. Shared...学位：翻译硕士院系专业：外文学院_翻译硕士学号：1202011115262

Design and Implementation of Estate Transaction Price Assessment System Based on SSH Framework

随着我国市场经济体制的发展，房地产市场发展快速，房地产业税收不断增长，已成为国家财政的重要来源。然而，现有的房产交易中存在大量个人交易行为，而每套房产都因建筑结构、户型、面积等属性存在差异，税务机关无法有效审核房产交易申报价格的真实性。因此，为了提高二手房交易环节税收的征管水平，堵塞阴阳合同产生的税收漏洞，迫切需要开发一个适用于现有征管模式的房产交易价格评估系统。 本文首先对房产交易价格评估系统开发涉及到的SSH框架及相关技术进行了简单介绍，包括Java及Web相关技术、XML、MVC、JavaEE、Struts2、Spring、Hibernate、SSH框架，并针对系统建设中将要用到的房产...With the rapid development of Chinese market economy, the real estate market is booming, and the growing tax revenue has become an important source of local revenue. However, there are a large number of individual transactions in existing real estate transactions, and there are differences in architectural structure, size, area, and other attributes between different houses, thus, the tax authorit...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201123103

扫描复合微pH电极原位测量局部腐蚀体系pH分布图象

金属点腐蚀是一种典型的局部腐蚀，点腐蚀过程不仅与金属相组分、夹杂及表面状态等有关，而且与许多环境因素密切相关，其中在金属／溶液界面Ｃｌ－浓度和ｐＨ的分布是影响金属点腐蚀发生、发展过程最为重要的微化学环境因素．研究点腐蚀过程中金属／溶液界面微化学环境对于了解点腐蚀机理及过程动力学具有重要的意义．本文首次研制成功复合型ＩｒＯ２／ＰｔｐＨ电极，复合微电极是ＩｒＯ２／ＰｔｐＨ微探针和ＡｇＣｌ／Ａｇ（ＫＣｌ）微参比电极组成．实验表明，复合型ＩｒＯ２／Ｐｔ微ｐＨ电极对ｐＨ值有良好的线性关系，测量灵敏度高，并可补偿局部腐蚀电位差异的影响，能够原位检测靠近金属／溶液界面二维方向微区ｐＨ值的分布图象．结合微区电位分布测试仪测量了不锈钢点蚀过程，金属／溶液界面二维方向微区ｐＨ值及其变化，探索了点腐蚀发展过程机理．扫描复合型ｐＨ微电极可成为原位研究金属局部腐蚀发生、发展过程机理的一种重要方法作者联系地址：物理化学研究所,固体表面物理化学国家重点实验室,厦门大学,Ａｌｂｅｒｔａ大学化学和材料工程

Applied research on RA codes in underwater acoustic ofDM communication system

正交频分复用(OrTHOgOnAl frEQuEnCy dIVISIOn MulTIPlEXIng,OfdM)技术由于具有频谱利用率高、抗多径能力强等优点,成为当前水声通信的研究重点和热点,但较高的峰均功率比(PEAk-TO-AVErAgE POWEr rATIO,PAPr)严重影响了水声OfdM通信系统的性能。采用重复累积码(rEPEAT ACCuMulATE,rA)作为信道编码方案,并用线性反馈移位寄存器(lInEAr fEEdbACk SHIfT rEgISTErS,lfSr)代替原rA码结构中的累加器,再通过选择映射(SElECTIVE MAPPIng,SlM)方法降低系统的峰均功率比。计算机仿真和水池实验结果表明,采用改进结构的rA码结合SlM技术能有效降低水声OfdM系统的PAPr,提高系统的性能,具有很好的应用前景。Orthogonal frequency division multiplexing(ofDM) technology has become the research focus and hotspot of underwater acoustic communications owing to its advantages such as high spectrum efficiency and robustness to multipath fading,but it possesses high peak-to-average power ratio(PAPR) which severely degrades the performance of Underwater Acoustic ofDM Communication System.In this paper,repeat accumulate(RA) code is adopted as the channel coding scheme,and linear feedback shift registers(LFSR) is used to replace the accumulator of original RA code structure,then selective mapping(SLM) method is also adopted to reduce the PAPR of system.Computer simulation and experimental results show that modified RA code and SLM can effectively reduce the PAPR and improve the per-formance of underwater acoustic ofDM communication system,which have a very good application prospect.研究基金访问学者项目(2011631504); 中央高校基础研究基金项目(201112G020和201212G012); 国家自然科学基金项目(41176032

Separation and purification of catalpol from Radix Rehmanniae

An ultrasonic extraction technology of preparing catalpol from Radix Rehmanniae was optimized by a uniform experimental design.The optimum conditions for ultrasonic extraction were thus established: 68% (vol) ethanol aqueous solution as extraction solvent,the volume(ml) to mass(g) ratio of extraction solvent to feed of 5∶1,the ultrasonic treatment time of 36 min.The crude catalpol obtained from the optimized ultrasonic extraction technology was further purified by selective adsorption with macroporous resin.The adsorption capacities and desorption yields of ten kinds of macroporous resins for catalpol were investigated.The results showed that H103 resin possessed the best performance.The properties of dynamic adsorption and desorption of H103 resin for catalpol were subsequently investigated on adsorption column.The optimum conditions for adsorption and desorption were determined.The concentration of catalpol in the loaded sample solution was 6.15 mg·ml-1,the flow rate was 1.0 ml·min-1,the volumetric percentage of ethanol in the eluting solvent was 75%,the elution flow rate was 0.5 ml·min-1 and the elution volume was 3.33 BV(bed volume).Under the above conditions,the purity of catalpol product eluted from the column packed with H103 resin reached 62.39% while that of the crude catalpol was only 10.01%

Numerical Simulation of Fluid Flow in Stirred Tanks and Investigation of Surface Aeration

搅拌槽是广泛应用于化工、溶剂萃取、环境工程和生物化工等领域的一种反应器.反应器内的三维流动很复杂,而在反应器的放大和设计中,研究者多采用一些与整体值有关的经验、半经验关联式,缺少对局部特性的定量研究.在理论研究方面,给出了一些简化的模型,但所需参数和边界条件多依赖实验数据.针对这种情况,该文从计算和实验两个方面对搅拌槽反应器内的局部流动和分散特性进行了研究.为了使数值模拟有更广的适用性,该文首次将各向异性显式代数应力模型(ASM)用于单相Rushton桨搅拌槽内流场的数值模拟.给出了合适的封闭分散相雷诺应力的方法,并首次提出适用于搅拌槽内的局部旋流修正,以改进两流体模型.该文着重对模型中相间作用力的表达进行研究,考察不同的曳力表达式对计算结果的影响,确定了合理又简单的曳力表达式.通过对曳力和虚拟质量力的大小进行比较,认为在相间作用力模型中应包括其它研究者在气液搅拌槽研究中没有考虑过的虚拟质量力,最终建立了包含虚拟质量力的Rushton桨搅拌槽的三维气液两流体模型,模拟所得气含率分布与实验数据变化趋势一致,气体速度分布趋势更加合理

5G移动通信发展趋势与若干关键技术

当前5G移动通信技术已经相对成熟，国内许多城市开始大规模建设5G通信基站及相关附属设施，随着5G技术商业应用模式的逐渐成熟，越来越多的技术手段开始应用到5G通信中，因此有必要更深入的认识5G移动通信的发展趋势及相关技术，从而在今后的应用中更好的把握5G通信技术，提供更高质量的通信服务。</jats:p

各向异性k—ε湍流模型在Rushton浆搅拌槽三维流场整体数值模拟中的应用

根据搅拌槽内的流动呈各向异性的特点，引入适用于强旋转流场的各向异性k-ε湍流模型，用改进的内外迭代法对有挡板的Rushton浆搅拌槽进行了整体数值模拟。利用文献中对搅拌槽内流场测定结果，给出了适用于Rushton浆搅拌槽的各向异性湍流黏度系数值；模拟计算得到了搅拌槽内的流场分布和脉动速度分布，并同标准k-ε湍流模型计算结果及文献数据进行比较。结果表明，各向异性k-ε湍流模型能成功反映Reynolds应力、湍流动能等湍流特征量，明显优于标准k-ε湍流模型