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Vapor makes the activity and selectivity of the catalyst decrease a great deal yet this disvalue is reversible; When the elemental sulfur and vapor exist simultaneity in the system, it might generate H〓S and S on 〓 catalyst since the anti-Claus reaction, but this phenomena is not observed on CoS〓-TiO〓 catalyst showing that sulfides could check the anti-Claus reaction.

对硫化物催化剂CoS〓-TiO〓来说,助剂La和Ce的引入对CoS〓-TiO〓催化剂的氧化还原性能有一定影响,硫化物催化剂平均粒径要小,但助剂并未改变催化剂的电子结构,对于氨分解克劳斯反应的活性改变不大明显。

It also presents discussion of some reaction phenomena, the reaction mechanism as well as its application research of DLC films.

另外还研究了类金刚石薄膜的机械、电学等性能。

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。

Considering both the phenomena of double refraction and internal double reflection, and the electro-optic effect in a crystal, all elements of n×n crossbar network are integrated in one birefringent crystal slab with electro-optic property.

通过综合考虑晶体的双折射和全内双反射现象,以及晶体的电光效应,将构成n×n纵横开关网络的所有单元器件都集成到一块具有电光效应的双折射晶体上。

In this dissertation, the optical implementations of integrated bypass-exchange switches and interconnection networks are investigated as the followings:(1) An electro-optic bypass-exchange switch integrated in a single substrate of birefringent crystal is proposed, which is polarization based, and consists of two beam splitters based on the phenomena of double refraction and inner double reflection and in-between an electro-optic modulator based on the electro-optic effect of crystal.

鉴于此,本论文从网络集成包装的角度出发,研究bypass-exchange开关和互连网络的光学实现,主要内容包括:(1)利用单轴晶体的双折射双反射原理和晶体的电光效应,设计了一种新颖的单块晶体集成的电光偏振控制型bypass-exchange光开关,将一个电光偏振控制型bypass-exchange光开关所必需的器件(两个光束分束器和一个电光调制器)集成在一块晶体上。

According to the boundary relations of the electromagnetic field, and based on the phenomena of double refraction and double reflection in crystals, the reflectivity and transmissivity are deduced at boundary when an extraordinary beam is incident from an isotropic medium upon a crystal or from a crystal to an isotropic medium with optical ax.

为分析非常偏振光在晶体表面的能量损耗,给出一种求解反射率和透射率的方法,即根据电磁场的边值关系以及晶体的双折射和双反射现象,求解晶体光轴在入射面内时,非常偏振光从各向同性介质入射到晶体和从晶体出射到各向同性介质两种情况的反射率和透射率的方法,并给出反射率和透射率的解析解,同时得到对于晶体光轴在入射面内的情况,光轴的取向对非常偏振光反射率的大小几乎没有影响,但对产生全反射的临界角θc影响较大的结论。

Blog-optical phenomena simulation, including reflection, refraction, Newton Central, Young's double slit interference.

光学现象模拟,包括反射,折射,牛顿环,杨氏双缝干涉等。

The phenomena that over parent individuals color ,plant height ,flower diameter and flower doubleness emerging are beneficial to the choice of new cultivars .

杂种后代中黑心和绿心颜色不产生分离,花色、株高、花径和重瓣性性状分离广泛,有利于新品种的选择。

The large variety in Fl hybrid occured.The phenomena that overparent individuals of some characters in lower color.plant height,flower diameter and flower doubleness emerging are beneficial to the choice of chrysanthemum breeding.

杂交后代的性状出现了广泛的分离,花色、株高、花径、重瓣性等性状都有超亲遗传的现象,有利于菊花育种的选择。

The shears mechanism and the new discovered phenomena in triaxial deformed nuclei—— chiral doublets are discussed.

讨论了原子核在有三轴形变时出现的一种全新的磁转动现象——手征双重带。

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你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。