四组

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器，对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计，建立了器件的三维实体模型以及两维降阶模型，对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计，同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程，开展了一系列重要工艺步骤的单项工艺试验，对工艺流程与工艺参数进行了优化，针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析，并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合，建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。

According to IS theory as well as die bond requirement in reality, Au/In was chosen by virtue of appropriate equilibrium diagram and high reaction rate from a variety of binary alloy systems as die bond media. To match CET of chip material of silicon, alloy 42 (Iron-Nickel) rather than copper—2 kinds of lead-frame materials in most common usage, was selected as substrate.

根据等温凝固原理和芯片焊接的实际需要，从多组二元合金中选出了共熔点低、反应速度快的金和铟作为焊接材料；并以硅片作为芯片，从目前最常用的框架材料—铜和铁镍四十二合金中，选出了与硅的热膨胀系数相近的铁镍四十二合金作为衬底材料。

During the 19th and 20th centuries there were huge achievements on philosophy literature art and music; a variety of activities were also booming at that time Richard Strauss(1864-1949) born at that era when the social phenomena influenced his music learning process combined the classical and romantic music styles and further developed his unique composing style There were 5 chapters in the dissertation The research motivation purposes methodology and the literature review were included in Chapter One Chapter 2 focused on understanding how the history background and personal attitude influenced Richard Strauss' composing style Through the study of the romantic musicians like Franz Schubert1797-1828 Robert Schumann(1810-1856 Johannes Brahms(1833-1897) Hugo Wolf(1860-1903) Gustav Mahler(1860-1911) and etc I attempted to get a complete picture of musical evolution in Chapter 3 In addition Richard's classic compositions were categorized and organized in order to gain a deep understanding of his music From the study and the analysis of Strauss'"Vier letzte Lieder" the features styles the format and the life of the two poets Hermann Hesse1877-1962）and Joseph von Eichendorff(1788-1857 were explored and the relationship between the music of this composition and the poetry were also discussed Chapter 5 summarized the main arguments to give a short account of Strauss' lifetime rich experiences and thinking in his eighties

横跨十九、二十世纪的理察·史特劳斯（Richard Strauss，1864-1949）正是欧洲人文发展空前灿烂的年代，无论在哲学思想、文学、美术以及音乐方面，都有辉煌的成就。在他音乐学习历程中，结合了古典时期及浪漫时期两种音乐风格，发展出独特的作曲风格。本论文分成五章：第一章绪论包括研究动机、研究目的、研究方法及步骤以及文献探讨；第二章则从对理查史特劳斯生平的详实记载中，了解他创作作品的时代背景和心情；第三章则就浪漫时期艺术歌曲作家舒伯特（Franz Schubert1797-1828）、舒曼（Robert Schumann1810-1856）、布拉姆斯（Johannes Brahms1833-1897）、沃尔夫（Hugo Wolf1860-1903）及马勒（Gustav Mahler1860-1911）等，以诗人、旋律、伴奏型态及曲式和声，稍加整理并说明，以便了解艺术歌曲在此时期之演变过程。并将理查史特劳斯艺术歌曲作品分类统整，藉此对他的艺术歌曲能有更深一步的了解。第四章《四首最后的歌》之音乐探究与分析，则探讨此部作品诗人赫塞（Hermann Hesse 1877 - 1962）及艾辛朵夫（Joseph von Eichendorff﹐1788-1857）的生平和作品特色，以及诗的结构与格式，和此部作品音乐与诗的关系。第五章结语说明史特劳斯一生丰富经历与晚年想法，创作出一组宁静感人又深刻的终曲。

In the fourth chapter, four new complexes of hydrazide of podophyllic acid with transition metals have been prepared. Elemental analysis, molar conductivity, IR,〓 NMR and TG-DTA were used to characterize them. The results show that general formula of the complexes is M〓(n=0 or 2). The ligand is linked through the carbonyl oxygen and the terminal nitrogen of the hydrazide base to the transition metal ions in bidentate mode.

第四章 合成了四种鬼臼酰肼的过渡金属配合物，通过元素分析、摩尔电导、红外光谱、核磁共振氢谱和热重-差热对配合物进行了表征，研究结果表明，配合物的组成为M〓（n=0或2），配体是通过羰基氧和肼基上的端氮以双齿形式与金属离子配位的。

The comparisons of biochemistry between OP and OR rats The differences between OP and OR rats included not only body weight, but lipids metabolism and insulin sensitivity as well, characterized with insulin resistance, increasing in serum free fatty acids and ketone body, and hepatic TC and TG in OP rats. However, no significant differences were observed in serum TG, TC, LDL, HDL and fasting glucose between OP and OR rats.⑶Comparisons of metabolites in serum, urine and liver tissue between OP and OR rats①There were significant differences in amino acids concentration between OP and OR rats,especially in liver tissue, such as high concentrations in ketogenic and glucogenic amino acids in OP rats, suggesting differences in amino acids metabolism;② The different metabolites between OP and OR rats included increasing of various saturated fatty acids and decreasing of polyunsaturated fatty acids in OP rats;③The urinary metabolites analysis indicated that different structure or metabolism of gut microflora might exist between the two phenotypes, which probably influenced the regulation of body weight gain;④The end-products of catecholamines in urine and intermediates of krebs cycle in serum in OP rats were all up-regulated, suggesting that the activity of sympatheic nervous system and energy metabolism was higher in OP rats than OR rats.

胰岛素耐受实验和胰岛素敏感指数表明OP动物的胰岛素敏感性较OR动物下降，而OP大鼠血清中游离脂肪酸、酮体、肝脏总胆固醇和甘油三酯水平显著升高；但是，OP与OR大鼠血清中总胆固醇、甘油三酯、低密度脂蛋白、高密度脂蛋白和空腹血糖等的水平并无显著性差异；⑶肥胖易感与肥胖抵抗大鼠血清、尿液和肝脏组织提取物中代谢物的比较研究表明：①OP与OR大鼠的血清、尿液和肝组织提取物中多种氨基酸的含量存在显著差异，并以肝组织中的差异氨基酸数量为最多，包括各种生酮和生糖氨基酸水平在OP组的升高，说明氨基酸代谢的差异是两种体重表型大鼠之间存在的重要差异特征之一；②OP与OR动物肝脏和血清差异代谢物中包含多种饱和长链脂肪酸的升高如十四烷酸、十六烷酸、硬脂酸等和多不饱和脂肪酸的下降如亚油酸和花生四烯酸，说明两种体重表型动物的肝脏脂肪酸代谢存在明显差异；③长期高脂饮食喂养后，动物的尿液代谢物分析表明OP与OR动物体内的肠道菌群结构存在差异，这些菌群上的差别可能在动物体重增长的调节上产生影响；④与OR动物相比，OP动物尿液代谢物中儿茶酚胺类递质的代谢终产物如高香草酸、扁桃酸和4-羟基苯乙酸明显升高。

A group of four cells formed as a result of meiosis in a spore mother cell.

四分体：1由孢子母细胞减数分裂产生的一组四个细胞。

A mother has given birth to a rare set of quadruplets in which three of the fo...

美国马里兰州一女子在其32岁生日当天生下四胞胎男孩，较为罕见的是，这组四胞胎是由同卵三胞胎和另外一个胎儿组成的。

The second youngest of six brothers, he began performing professionally with four of them at the age of 5 in a group that their father, Joe, a steelworker, had organized the previous year. In 1968, the group, originally called the Jackson Brothers, was signed by Motown Records. The Jackson 5 was an instant phenomenon. The group's first four singles—"I Want You Back,""ABC,""The Love You Save" and "I'll Be There"—all reached No. 1 on the pop charts in 1970, a feat no group had accomplished before.

杰克逊五岁时开始与自己的四个哥哥一起登台进行专业表演，这个组合是他们做钢铁工人的父亲乔于1962年创建的。1968年，这支原来名叫"杰克逊兄弟"的乐队签约了摩城唱片，"杰克逊五人组"一炮走红，他们首发的四支单曲——《盼你归来》、《ABC》、《你保留的爱》和《我将在那里》在1970年先后登上了流行音乐榜的榜首，此前从来没有任何组合能有如此战绩。

Methods The normal children in 500 and 206 cases with secundum ASD were selected from outpatients by randomized. Both groups divided 10 sections according to their area of body surface, and measured diameter of interval atrial septum in the subcostal four chamber view and subxiphoid four chamber view by echocardiography.

选择正常儿童 5 0 0例和单纯ASD患儿 2 0 6例按照体表面积分成 10组，用超声心动图常规取心尖四腔心和剑下四腔心切面测量每一例儿童房间隔直径。

Tetraploid A cell or organism containing four times the haploid number of chromosomes.

四倍体：具有四个的单倍染色体组的细胞或生物体。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新