查询词典 silica

Objective To study dose response relationship between cumulative exposure to silica and cumulative incidence of pneumoconiosis.

目的 探讨游离二氧化硅累积接触与尘肺累积发病的剂量反应关系。

The influence of different assembled condition such as assembly method, concentration of zirconium source and pH value on the effectiveness of assembly were evaluated via DSC-TG, FT-IR, Uv-vis and SAXRD et al. It showed that the assembly effectivness of uncalcined 3 Si/Zr_10# sample was best.c The optical characteristic, which including light-conduction in infrared band and polarity in visible band, of dip-coating film and membrane assembled zirconia after processing parameters of assembly optimized were observed via FT-IR and Uv-vis. The polarity was characterized by polarizing angle through calculation from light-transmittance, light-reflectance and fresnel coefficient. qualitative analysis showed that the polarity of Si/Zr_10 # dip-coating film assembled was best.d Adopting zirconium oxychloride as zirconium source, CTAB as template, employing different CTAB adding sequence, two mesoporous zirconia samples were prepared. The template effect of two samples was discussed. It showed that the effect of the sample which CTAB adding sequence was same as mesoporous silica film was better. The light-conduction in infrared band of these samples was also studied, which offered comparison to the polarity of zirconium dioxide assembled within mesopore.

结果显示：组装条件优化后的uncalcined 3 Si/Zr_10#厚膜样组装效果最好，其组装液对应的pH值最利于该锆源离子模板交换组装； c选用FT-IR、Uv-vis对组装条件优化后纳米氧化锆/介孔氧化硅厚膜、纳米氧化锆/介孔氧化硅薄膜包括红外导光性、可见光区内的偏光性在内的光学特性进行了分析，其中偏光性以膜层透光性、反光性及菲涅耳系数计算出的偏振角即布儒斯特角表征，定性分析显示，Si/Zr_10#ZrO_2/介孔氧化硅厚膜偏光性最好； d以氧氯化锆ZrOCl_2·8H_2O为锆源，CTAB为模板剂，采用不同的模板剂加入顺序，探索性地制备两介孔氧化锆样，分析了两介孔氧化锆样的模板效果，得出模板剂加入顺序同介孔氧化硅薄膜时介孔氧化锆样的模板效果较好，并分析了所得样品的导光性，为锆氧粒子引起的附加光学特性分析提供了参考和对比。

Recently, we reported new oxygen sensing materials based on platinum porphyrin complexes assembled in mesoporous silica.

近期研究表明，载体的选择及结构的改进是提高氧气传感器性能的关键。

By substituting silica powder for ordinary portland cement, the performance of the concrete can be best improved.

以硅粉取代部分普通硅酸盐水泥，对混凝土性能改善效果最好。

Acidic rocks have a silica content over 70 % Granite is the typical example of acidic intrusive igneous rock, which is composed mostly of potash feldspar, quartz and minor mica.

岩石中Si02含量大于70%时，称为酸性岩，花岗岩就是酸性侵入岩石的一个典型例子，它的矿物成分主要是钾长石、石英以及少量云母

Huadian City, the special geological structure there are very rich in mineral resources, including non-metallic mineral clay, potash feldspar, sodium feldspar, kaolinite, calcite, wollastonite, silica, perlite, bentonite and other ceramic production The main raw materials are widely distributed in the territory, plus the surrounding counties and cities have adequate zeolite, bauxite, talc, and other supplementary materials, has become China's ceramic industry to develop the "New World" for building a building "Northern porcelain" lay a solid foundation.

桦甸市，特殊的地质结构有非常丰富的矿产资源，包括非金属矿物粘土，钾长石，钠长石，高岭石，方解石，硅灰石，硅石，珍珠岩，膨润土等陶瓷生产的主要原料，广泛分布在本港，加上周边县市有足够的沸石，铝土矿，滑石，以及其他辅助材料，已成为中国的陶瓷产业发展的"新世界"的建设，为建设"北方瓷"奠定了坚实的基础。

Methods SH-SY5Y cells, a human neuroblastoma cell line, were incubated with different concentrations of fluoride for 48 hr and somle of them were treated with vitamin E precedently. The functional situation of cells was measured by MTT method; lipid peroxidation was detected by High-Performance Liquid Chromatography; phospholipid was separated by a Silica SepPak cartridge and neutral lipids by HPLC.

体外培养SH-SY5Y人脑神经母细胞瘤细胞，在培养液中加入不同浓度的氟化物或加入抗氧化剂，培养48h后用测定细胞MTT的方法来了解细胞的损伤程度，用高效液相色谱法分离和测定培养液中脂质过氧化物水平，用过柱和比色法测定细胞生物膜磷脂含量，用高效液相色谱法测定细胞生物膜辅酶Q和胆固醇含量。

Liquid chloridize paraffin ; powdered coal ash ; silica fume ; environment protectional polyurethane waterproof coating

本研究介绍了用液体氯化石蜡为液体填料，用工业废渣粉煤灰及硅粉为粉体填料制备出高质、耐久、性价比优异的新一代双组分环保型彩色聚氨酯防水涂料。

Rear part switch:The link guarantees the silica gel push-button switch.

尾部开关：环保硅胶按钮开关。

The effects of thickness of silica isolating thermal layer on properties of multilayer pyroelectric thin film was studied.

研究了SiO〓绝热膜厚度对复合热释电薄膜性能的影响。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。