硅的

It was discussed that the main factors having effect on the vulcanization time of RTV block methyl silicone rubber, such as the mol ratio of ethoxyl and silicone hydroxyl, the pH value of methyltriethoxysilane, and the content of iron ions impurity in methyltriethoxysilane, temperature, moisture, and the quantity of catalyst.

讨论了影响甲基嵌段室温硫化硅橡胶硫化时间的主要因素，如：乙氧基与硅羟基的量之比，甲基三乙氧基硅烷低聚物的pH值、铁离子的含量，以及温度、湿度和催化剂的用量等；并介绍了预防和控制这些影响因素的方法。

Its main features are: algae body as a single cell or even into a variety of groups; cell walls composed of silica and pectin, but also by the structure of the shell and the shell under the combined set of the Cheng, vertical section view was "soap-box"-shaped; in the upper and lower shell surface of the shell are patterns arranged in patterns on both sides of the main mode of symmetry and radial symmetry is divided into two categories, for the classification of the most important basis; be able to campaign Type in the shell has a shell side seam, can not be changed no shell seam types; pigment body sheet or ribbon, 1 or 2, or for multiple small discoid, yellow green or brown, containing chlorophyll a, c, also contains fucoxanthin and silicon A flavin and other photosynthetic pigments; storage material mainly for oil droplets; reproduction mainly for cell division and cell division in diatoms obvious features are: each cell division, resulting from two sub-cells,, only one and the mother cell and so big, the other one is smaller.

其主要特征是：藻体为单细胞或连成各式群体；细胞壁由硅质和果胶质组成，而且在结构上都是由上壳和下壳套合而成，纵断面观呈"肥皂盒"形；在上下壳的壳面上有花纹，花纹排列的方式主要分为两侧对称和辐射对称两大类，为分类上的最重要依据；能运动的种类在壳面都有壳缝，不能动的种类均无壳缝；色素体片状或带状，1个或2个，或为多个小盘状，黄绿色或黄褐色，含叶绿素a、c，还含有墨角藻黄素和硅甲黄素等光合色素；贮藏物质主要为油滴；繁殖方式主要为细胞分裂，硅藻的细胞分裂的明显特点是：每次细胞分裂所产生的2个子细胞中，仅有1个和母细胞等大，另1个则稍小。

A method of increasing the lifetime of a hydro-oxidation catalyst comprising, preferably, gold, silver, or mixtures thereof, and optionally one or more promoters, on a titanium-containing support, such as a titanosilicate or titanium dispersed on silica.

一种延长加氢-氧化催化剂寿命期的方法，该催化剂在比如硅钛酸盐或分散在氧化硅上的钛的上面优选含有金、银或它们的混合物，以及任选的一种或几种促进剂。

Ferric chloride catalyzed direct conversion of carbonyl compounds to the corresponding chloride with silicon hydride ( dichloromethylsilane , chlorodiphenylsilane or trichlorosilane) was realized.

在甲基二氯硅烷作用下，FeCl3能催化羰基化合物的还原氯代反应，得到相应的氯代产物；在甲基二氯硅烷、PBr3或NaI作用下，FeCl3可以催化羰基化合物的还原溴代或碘代反应，分别以良好的收率得到相应的溴代烷或碘代烷

In this dissertation,preparation and thermoelectric characterization of conventional silicon-based materials and devices have been studied, including amorphous silicon films, polycrystalline silicon germanium films and amorphous silicon thin-film-transistors. A novel MEMS-IC integration method based on porous silicon micromachining has been developed, which is used to fabricate resistive bolometers with a-Si and polySiGe films, and a-Si TFT-based room-temperature infrared detector pixels and 8×8 arrays with primary capability of thermal imaging have been reported for the first time.

本文深入系统地研究了a-Si薄膜、polySiGe薄膜和a-Si TFT等三种常规硅基材料和器件的制备方法和热电特性，开发了一套新型的基于多孔硅牺牲层技术的MEMS-IC集成工艺，利用该工艺成功地制作了a-Si和polySiGe薄膜电阻式测辐射热计，在国际上首次提出并实现了基于a-Si TFT的室温红外探测器单元与8×8阵列原型，器件初步具备了室温红外热成像的能力。

Through discussion on the dosage of assistant, curing temperature and time, the optimal process of padding was obtained, polyurethane-modified silicon emulsion 40 g/L of dosage, curing 2 min at 120℃. The results showed that polyurethane-modified silicon rubbing fastness improver could evidently enhance the dry and wet rubbing fastnesses of deep color fabrics. In addition, it could endow fabric with softness and smoothness.

通过对助剂用量、焙烘温度、焙烘时间的探讨，确定了浸轧法处理染色织物的最佳工艺条件：聚氨酯改性有机硅高分子乳液用量40g/L、120℃焙烘2 min经聚氨酯改性有机硅湿摩擦牢度提升剂处理的深浓色织物，其干、湿摩擦牢度得到了明显的提高，而且还能赋予织物柔软、滑爽的手感。

Based on characteristic of silicon microwaves, a new method of pneumatic pressure control is presented.

本文针对硅微控阀门的特性，提出了一种新的气体压力控制方法，设计了基于微机电硅微控阀门的气体压力控制系统，对系统的传感器调理电路、控制电路进行了设计，解决了小压力和低流量时的压力精密控制问题。

Nanocrystalline titanium silicides were synthesized by co-reducing silicon tetrachloride and titanium tetrachloride with different metal reductants at 650℃.

具体内容如下： 1、以硅粉和VCl〓为原料、以金属钠为还原剂，在650℃的氯化镁和氯化钠组成的熔盐中，通过还原硅化法成功合成了具有六方相结构的颗粒平均直径约为35纳米的VSi〓纳米材料，产物在1000℃时具有很好的抗氧化稳定性。

We have observed the structure of these dune sands and analyzed the grain-size,surface textural features and several main chemical elements of them,the results showed that:(1) these dune sands have some eolian structure characteristics which are similar to the recent dune sands;(2) they are also similar to the recent dune sands in grain-size components,and parameters of Mz,?滓,Sk and Kg,as well as in several main chemical components;(3) the scatter plots of Mz-?滓,SiO2-Al2O3+TOFE and the probability curves of grain-size showed that these paleo dune sands are different from paleosols and fluvio-lacustrine facies but are consistency with recent dune sands;and(4) the quartz sands have well roundness and some surface textural features such as dish-shape pits,crescent-shape pits,pockmarked pits,upturned cleavage plates,siliceous precipitates and siliceous crevasses,indicating that they had been carried for a long time by the wind.

对这些沙丘砂的沉积构造观察以及粒度、扫描电镜和常量化学元素分析结果表明：(1)这些沙丘砂具有与现代沙丘砂相似的风成沉积构造特征；(2)粒度及其参数--Mz、σ、Sk和Kg，以及主要化学组分SiO2、Al2O3和TOFE也与现代沙丘砂相近；(3)Mz-σ、SiO2-Al2O3+TOFE散点图和概率累积曲线显示这些沙丘砂与萨拉乌苏组中的河湖相、古土壤差别明显，而与现代沙丘砂一致；(4)石英砂颗粒具有良好的磨圆以及碟形坑、新月形坑、麻坑、上翻解理薄片、硅质沉淀和硅质裂纹等表面结构特征，反映其曾受持久的风力搬运作用。

When combined by heavy chromate-sodium hydrogen sulfite and by silane couplant, rapidly quenched NdFeB permanent magnetic particles, can form passive pycho-film (containing Cr〓O〓) and silane composite coating, which can improve greatly its oxidation resistance of NdFeB particles and increase the magnetic properties of bonded NdFeB Permanent Magnetic Composite .

采用重铬酸盐钝化-亚硫酸氢钠还原与硅烷偶联剂处理相结合来包覆处理快淬NdFeB永磁粉，能在快淬NdFeB表面形成致密的含Cr〓O〓钝化膜/硅烷复合涂层，它们显著地改善了快淬NdFeB的抗氧化性并提高了粘结NdFeB永磁复合材料的磁性能，并与其它的NdFeB包覆处理工艺所获得的涂层进行了比较。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。