Study on Cp2TiCl-Catalyzed Radical Reactions for the Construction of Multifunctional Aza-Quarternary Carbons and 1-Azaspirocyclics

本论文在实验室已经发展的一氯二茂钛催化的酰胺型的Mannich反应的基础上，拓展了合成多官能化酮基酰胺的方法并将之应用于构建多官能化氮杂季碳，进而研究了1-氮杂螺环的构造方法。此外，配合实验室在光催化不对称反应方面的研究，合成了系列N，N’-双氧手性配体。本论文取得的主要成果有： 一、建立了使用Reformatsky试剂及烯基格氏试剂对环状酰亚胺加成开环制备多官能化酮基酰胺的方法并在此基础上探索了1-氮杂螺环的构造方法。具体包括： 1)以环内及环外酰亚胺为底物，以Reformatsky试剂及末端烯基格氏试剂为亲核试剂，制备了一系列多官能化酮基酰胺。2)以多官能化酮基酰胺为底物，采用一氯二茂...Based on our previously developed methodology of Cp2TiCl-catlayzed radical-type Mannich reaction, we expanded this methodology to construct aza quarternary carbons by preparation of multi-functional keto-amides as synthetic precursor. Subsequently, 1-azaspirocycles were constructed by further manipulations. In addition, to assist the study of asymmetric photocatalytic reations in our laboratory, w...学位：理学硕士院系专业：化学化工学院_有机化学学号：2052014115154

Contemporary nature of the Chinese meticulous figure painting techniques

当代工笔人物画表现技法多样化，它在继承传统的基础上吸收借鉴外来艺术，以满足时代发展和人们审美变化的需要，是时代发展的必然，给中国画带来了生机和活力。 文章主要以当代工笔人物画技法的拓展为线索，分析其发展背景、原因及表现。具体以《清明上河图》与笔者的创作实践《超市系列》为例，分析了当代工笔人物画技法拓展的表现。 全文主要从五个部分来阐述： 第一章梳理工笔人物画技法的发展脉络，阐述中国古代工笔人物画各阶段的发展状况及绘画技法特点。 第二章分析当代工笔人物画技法发展的原因及其必要性，主要从时代的发展、东西方的交融碰撞及邻国日本人物画的发展三个方面进行阐述。 第三章介绍工笔人物画拓展的表现。...Contemporary Chinese meticulous figure painting techniques have diversified, On one hand it inherits traditional styles, on the other hand, it learns from foreign art,now developing with the times and meeting the needs of people's aesthetics. This is a necessary development ,bringing vitality and vigor to Chinese paintings. This paper mainly discusses expansion of the contemporary Chinese meticul...学位：文学硕士院系专业：艺术教育学院美术系_美术学学号：1862009115306

Progress in the Study of Solid/Solid Interface between Lithium Electrode and Polymer Electrolytes in Lithium Polymer Batteries

综述了聚合物锂电池中锂/聚合物电解质电化学固/固界面的研究进展。通过与锂/液体电解质体系进行比较,简要介绍了在锂/聚合物电解质界面上发生的电化学反应、锂钝化层形成及其对界面反应的影响,并侧重讨论了传统电化学方法和谱学方法,特别是现场分析技术在电化学固/固界面研究中的应用。总结了锂/聚合物电解质界面的几种不同改善途径。Recent advance in the research of solid/solid interface between lithium electrode and polymer electrolytes(PE) in lithium polymer batteries is reviewed.Compared with Li/nonaqueous systems,the electrochemical reaction at the Li/PE interface and the influence of passivation layer on the electrochemical reaction are briefly introduced.The applications of different sophisticated electrochemical methods and spectroscopic methods,especially the in situ analysis techniques in Li/PE solid/solid system are discussed.In addition,different approaches for improving Li/PE interface include surface modifications of Li-metal in the literature are also summarized.国家自然科学基金项目(No.20473068,29925310);; 教育部霍英东优秀青年教师基金项目资

Design of a micro capacitive acceleration sensor based on MEMS

给出了一种基于MEMS技术制作的微电容式加速度传感器的结构及工艺。为了准确地把握这种微电容式加速度传感器的力学和电学特性,仔细地建立了它的力学模型。在此基础上,详细分析了它的动态特性———模态。并用有限元的方法分析和计算了微电容式加速度传感器的加速度与电容信号的非线性输入输出关系,并结合实测参数验证了模型的有效性。最后提出了一种详细的有效的基于MEMS技术的微电容式加速度传感器的结构以及加工工艺流程。基于MEMS技术制作的微电容式加速度传感器具有结构简单、工作可靠和工作范围大的特点。根据这套方法,可以比较方便地设计并加工不同测量要求的加速度计。Structure and process of a micro capacitive acceleration sensor based on MEMS technology were given.So did the fabrication process.With the purpose of grasping the sensor's characters of mechanics and electrics,its mechanics model was discussed.On this basis the sensor's modal analysis was made.In order to get the nonlinear relationship between the acceleration and capacitive signal,an effective method based on FEA was proposed.The detail processing steps was designed,which explained the feasibility of the fabrication.The sensor has advantages of simple structure,operation reliability and the wide work range.Using this set of method,sensors with different test ranges can be designed and fabricated

Monolithically Integrated Optical Receiver with Spatially Modulated Optical Detector in CMOS Technology

设计了与标准CMOS工艺兼容的850 nM空间调制(SPATIAlly MOdulATEd,SM)结构光电探测器,在分析器件物理模型的基础上,建立了SPECTrE环境中等效电路的新模型。提出标准CMOS工艺下SM探测器与前置放大电路单片集成的电路设计。仿真结果表明,在850 nM光照下,SM探测器带宽达到400 MHz,并提供62 MA/W的响应度。整个集成芯片的工作速率为400 Mb/S,增益为0.81 kV/W,功耗为91 MW。A monolithically integrated optical receiver(λ=850 nm) with spatially modulated(SM) optical detector is designed in standard 0.5 μm CMOS technology,the equivalent circuit model of the SM light detector is built in the SPECTRE environment.Simulation results show that the SM optical detector researches a bandwidth of 420 MHz and a responsibility of 78 mA/W.OEIC has a bandwidth of 400 Mb/s and gain of 0.81 kV/W with the power dissipation of 91 mW.厦门市科技计划项目(3502Z20063002

A Micro-Variable Capacitor Based on MEMS Technology

　通过对接触式电容压力传感器的改进,提出了一种基于MEMS技术的微变电容模型。为确定外加驱动电压与由此所引起的电容变化之间的非线性关系,提出了一种有效的基于有限元的方法,并设计了相应的加工工艺流程,说明了其工艺的可实现性。With the improvement of the touchmode capacitive pressuresensor,a microvariable capacitor based on MEMS technology is presented In order to define the nonlinear relationship between the applied driving voltage and the capacitance variation, an effective method based on finite element analysis (FEA)is proposed Processing steps are designed, and the feasibility of the process is elaborate

Progress in the study of solid/solid interface between lithium electrode and polymer electrolytes in lithium polymer batteries

Recent advance in the research of solid/solid interface between lithium electrode and polymer electrolytes (PE) in lithium polymer batteries is reviewed. Compared with Li/nonaqueous systems, the electrochemical reaction at the Li/PE interface and the influence of passivation layer on the electrochemical reaction are briefly introduced. The applications of different sophisticated electrochemical methods and spectroscopic methods, especially the in situ analysis techniques in Li/PE solid/solid system are discussed. In addition, different approaches for improving Li/PE interface include surface modifications of Li-metal in the literature are also summarized

R&D of composite thin films

［中文文摘］复合薄膜材料由于具有传统复合材料和薄膜材料两者的优点,正成为复合材料的重要分支而越来越引起广泛的重视和深入的研究。它可以把各层薄膜材料的优异性能结合起来,从而克服各自的弱点,达到特定的应用目的。本文简要综述了近十年来复合薄膜领域的研究进展,介绍了多层复合薄膜的制备方法和常用表征手段并总结了目前复合薄膜材料领域中存在的主要问题。［英文文摘］Having the advantages of both conventional composite materials and thin films,the composite thin films have been more and more attractive in materials technology and widely used in mamy fields.The reason why composite thin films are so attractive is just that they can combine the advantages of each amd every layer of a film together and get rid of the disadvantage of each one,thus serving the special purpose of application.Reviews briefly the R&D of composite thin films in recent ten years and describes the preparation of composite multilayer thin films and commonly used characterixation procedures,and indicaters mainly the existing problems of such thin films.国家863计划国防先进材料重大专项基金资助项目(2003AA305040

Aluminum Coating on Modified Fluorinated Polymer Composite Films

[中文文摘]采用射频磁控溅射技术在改性氟塑料表面沉积铝层,制备了金属/氟化高聚物复合薄膜。利用场发射扫描电镜(FESEM)及能量散射谱(EDS)分析仪对沉积的铝层进行了表面形貌的表征和化学组分的分析。初步探讨了溅射功率、气压和时间等不同溅射参数对铝层结构和铝层在氟塑料表面附着情况的影响。结果表明:溅射功率是决定复合薄膜质量的重要因素,功率过低得不到致密的铝层结构,而且铝层容易从氟塑料表面脱离,功率过高则会产生很强的热效应而使复合薄膜弯曲。溅射气压和时间分别影响铝层在氟塑料表面的沉积速率和生长厚度。[英文文摘]Aluminum film was grown on modified fluorinated polymer composite films by rf magnetron sputtering.Surface morphology and composition of the A1 film were characterized with field emission scanning electron microscopy(FESEM) and energy dispersive spectroscopy(EDS) to optimize A1 film growth conditions.The results show that the sputtering power significantly affects the compactness of the A1 film.Low sputtering power results in less compact A1 film and weak interfacial adhesion,whereas high sputtering power overheats and considerably bends the compositefilms. Wefound that sputteringpressure and sputteringtime determine the deposition rate and thicknessof the A1film, respectively.国家863计划国防先进材料重大专项基金资助项目(No.2003AA305040