粒剂

Results showed that when the particle size distribution of antifoam emulsion is in the range of 2~30μm,and D50 is in the range of 3~15μm,the antifoam emulsion has excellent breaking and inhibiting foam performance,temperature re.

制备了有机硅消泡剂乳液，探讨了乳液不同的粒径分布范围对消泡性能、耐高温稳定性和稀释稳定性等的影响，确定了合适的粒径范围。

The active targets of the aneugens in the cells were not only chromosome and DNA but also all kinds of mitosis apparatuses (such as centriole, kinetochore, microtubule of spindle etc ),centromere and cell membrane.

非整倍体诱发剂在细胞中的作用靶标通常不仅是染色体和DNA，也可包括各种有丝分裂器（如中心粒、着丝点、纺锤体微管），着丝粒和细胞膜。

The influence of emulsifier content, shell-core ration on particle size, size distribution of nanocapsules was studied.

考察了乳化剂的量，壳芯比对纳米胶囊的粒径、粒径分布的影响。

The result show that particle numbers of diameter of floccule which are of narrow-dispersed size between 7 500～20 000 nm are more than 82% of the total when the pH is between 8.5 and 10,with concentation of Fe~(3+) around 40 mg/L and areration rate in the range of 0.10 L/min and 0.14 L/min.

结果显示，在絮凝剂中Fe3+浓度为40 mg/L，废水的pH值为8.5~10，曝气速率在0.10 L/min~0.14L/min之间时，絮凝体颗粒粒径较大而且分布比较集中，优势粒径范围为7 500~20 000 nm，该粒径范围的絮凝颗粒占总体份额大于82%。

The efficiency of surfactant was evaluatedby measurement of the polymerization kinetics, the conversion of MMA, the amount of thecoagulation, the surface tensteon of the miniemulsion before and after polymerization, andthe particle size and particle size distribution of obtained lattice.

通过对聚合反应的动力学，单体MMA的转化率，凝结物的生成量，细乳液聚合前后的表面张力，及所得乳胶粒子的粒径和粒径分布的表征，评价了大分子乳化剂在RAFT细乳液聚合中的效率。

Telomerase TMPYP4 with four good-binding chain is expected to become a new type of telomerase quadruplex stabilizers.

TMPYP4与端粒酶四链体结合较好，有望成为一种新型的端粒酶四链体稳定剂。

The average particle size of PLA nanocapsules obtained was decreased to (181.5±8.4) nm, and capably adjusted from 180 to 370 nm by using different types and content of nonionic emulsifiers.

得到的聚乳酸纳米胶囊的平均粒径降低到181.5±8.4 nm，并且可以通过使用不同种类和用量的非离子乳化剂对粒径在180到370 nm之间进行调节。

The results showed that when 0.3 g of divinyl benzene was used as crosslinking agent, the crosslinking degree increased significantly from 28.26% to 90.95% with the increase of MAA amount from 4.0 mol% to 10.0 mol%, and this increase became slowly as MAA amount was more than 10.0 mol%; the particle volume expansion was increased gradually as MAA amount increased, and reached a maximum of 42.1% when 12.0 mol% of MAA was used, and perfect porous morphology inside particles was observed even when the crosslinking degree reached 95.4% at 14.0 mol% of MAA.

结果表明：在交联剂二乙烯基苯用量一定(0.3 g)的条件下，随着MAA用量从4.0 mol%增加到 10.0 mol%，聚合物交联程度从28.26%迅速增大至90.95%，当其用量超过10.0 mol%后 P x增大趋势变缓；随着MAA用量的增加，处理后胶粒体积膨胀百分率逐渐增大，在MAA用量为12.0 mol%时Δ V 达到42.1%的最大值，当MAA用量增大到14.0 mol%时，尽管 P x高达95.44%，胶粒仍具有完好的孔状结构。

According the known structure of MELs and the composition of broth, the separate and purify process of MELs was studied with silica-gel chromatography and the optimum conditions were: silica gel particle size 200 mesh, washing solution chloroform-acetone mixture (7: 3 for MEL-A, 6: 4 for MEL-B), washing rate 0.25ml/min, washing amount 400ml solvent/g MEL.

1根据已知生物表面活性剂MEL的结构特点和发酵液组成，在提取得到MEL粗制品的基础上，采用硅胶色谱分离技术，确定了MEL的最佳分离纯化条件：硅胶粒径200目，洗脱剂采用氯仿-丙酮混合溶剂，洗脱剂配比为7∶3、6∶4，洗脱速率为0.25ml/min，洗脱剂用量为400ml/gMEL。

Uses in the paint, the printing ink, the varnished cloth coloration, the printing industrial used dye printing reserving agent, uses in the neutral cowhide glue in the matches industry the acidity, increases the gummy effect, the pharmaceutical industry serves as the adhesive plaster raw material, in addition also uses in the pigment zinc chrome yellow, the zinc acetate, the zinc carbonate, the zinc chloride and so on manufacture, the synthesis methyl alcohol catalyst, the synthetic ammonia sweetening agent, the glass and glazes the production, the pellet thin active zinc oxide (about particle size 0.1um) may serve as plastic and so on polyolefine and polyvinyl-chloride light stabilizers, the zinc oxide also uses in pressing, the photochemical catalysis, the electro-optic sensitively extremely, domains and so on coating, color television development.

用于油漆、油墨、漆布的着色，印染工业用的印花防染剂，在火柴工业中用于中和牛皮胶的酸性，增加胶粘效果，医药工业用作橡皮膏的原料，此外也用于颜料锌铬黄、醋酸锌、碳酸锌、氯化锌等的制造，合成甲醇的催化剂，合成氨的脱硫剂，玻璃和釉料生产，颗粒细的活性氧化锌（粒径0.1um左右）可用作聚烯烃和聚氯乙烯等塑料的光稳定剂，氧化锌也用于压敏、光催化、光电极、涂料、彩电显影等领域。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。