聚丙烯

The biochemical genetics in 5 populations of Meretrix meretrix from northern China were analyzed by polyacrylamide gradient gel vertical electrophoresis.

采用聚丙烯酰胺凝胶电泳技术，对文蛤5个北方种群进行了生化遗传分析。

The results showed that the structure of St-g-PAM was meshy,and porous,and integrant linetype,the soluble starch had elliptic form,and PAM was linear color;the crystallinity of St-g-Pam had been improved,and was better than PAM;the thermal stability of St-g-PAM was also better than PAM,which was the significant reason that the graft polymer had the ability of excellent flocculation.

线型St-g-PAM作为一种新型的高分子絮凝剂，它结合了淀粉与聚丙烯酰胺的特性，广泛应用于废水处理、石油化工、造纸工业等领域[3~5]。由于其原料淀粉来源丰富、价格低廉，且线型St-g-PAM的成本比PAM低，故越来越受到人们的重视。

Methods MSI was examined in 38 surgically resected GC specimens and 22 corresponding paratumor intestinal metaplasis samples using PCR, PCr-denatured polyacrylamide gel based methods.

采用PCR、PCR一变性聚丙烯酰凝胶及银染法检测38例胃癌及相应的22例癌旁肠化生组织的MSI。

The DDV, SEM and micropolariscope analysis showed, when the Cl_2/SO_2 ratio was 1∶2 and the chlorosulfonation of polypropylene was proper, PP and PA1010 blend has had a good compatibility, and both its notched Izod impact strength and melt flow rate have been raised.

DDV、SEM、偏光显微镜的分析表明，Cl_2/SO_2为1∶2，氯磺化聚丙烯适当时，PP与PA1010有着良好的相容性，其缺口冲击强度，熔体流动速率均提高。

The effects and performances of dephosphorization of the common coagulant and the flocculants: the calcium salt, the molysite and the aluminum salt and polyacrylic amide were studied on the post-positioned precipitation of municipal sewage which was processed through biological treatment.

本实验以常用混凝剂及絮凝剂：钙盐、铁盐和铝盐及聚丙烯酰胺为研究对象，研究它们对经生物处理后的城市生活污水出水，进行后置沉淀除磷的性能及除磷效果。

In order to make WRCRFs with good performance, the raw material fertilizers with smaller effects on HWAR such as urea, monoammonium phosphate and potassium chloride should be selected. On the other hand, for HWAR, high stability and adequate WAR such as polyacry lamide graft polymer should be needed.

制造性能优越的保水型控释肥，应尽可能选择对HWAR稳定性影响较小的尿素、磷酸一铵、氯化钾等原料肥料，对于包膜材料则应选择稳定性高且具适度吸水倍率的聚丙烯酰胺型HWAR。

The Esterase, Catalase, PPO isoenzyme and soluble mycoprotein patterns of 43 isolates were analyzed by polyacrylamide gel electrophoresis.

利用聚丙烯酰胺凝胶电泳技术对43个新月弯孢分离物进行了酯酶等三种同工酶及可溶性蛋白的分析。

SOD, ATPase, MDH and ME isoenzymes in gill, digestive gland, foot, adductor muscle and mantle of Mytilus edulis were tested and analyzed using polyacrylamide gel electrophoresis.

采用聚丙烯酰胺垂直电泳法对紫贻贝 Mytilus edulis 的鳃、消化腺、外套膜、足、闭壳肌等5种组织的超氧化物歧化酶、三磷酸腺苷酶、苹果酸脱氢酶、苹果酸酶进行了检测分析。

1A specific protein component with 32KD of molecular weight was determined fromfemale flower,whereas a 43KD protein component was determined from male flower with SDSPAGE(which were temporarily called sex-related proteins of Acer negundo L.).

1通过分离胶浓度为12％的聚丙烯酰胺凝胶电泳从复叶槭雌花和雄花中分别检测出分子量为32KD和43KD左右特异性的蛋白质组分(暂且称其为性别相关蛋白)。

The research result also showed that aminoalkylferrocene and new ferric alkyldithiocarbamate were effective initiators of the two kinds of biodegradation of the PE film; and new nickelous alkyldithiocarbamate could effectively control the initial process of its biodegradation; and PE film with them had better environmental degradability.

其中聚 酯、聚酰胺和聚氨酯等聚合物是通过H'或 OH_催化的水解降解引发过程，而聚乙烯、聚丙烯和聚苯乙烯等聚烯烃主要是通过光、热、氧和过渡金属离子催化的光一氧降解引发过程。但它们的最终可被生物吸收的产物都是低分子量的羧酸。

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。