| 1. | Soil quality . chemical methods . determination of cationic exchange capacity and extractible cations 土质.化学方法.阳离子交换容量和可交换的阳离子的测定 |
| 2. | Soil quality - determination of ammonium acetate extractable ca , mg , k and na cations - agitation method 土质.醋酚氨可提取的ca mg k和na阳离子的测定.搅拌法 |
| 3. | The results showed that average particle size of plns was significantly larger than that of initial cationic liposomes 结果显示,复合物平均体积显著大于带阳离子的脂质体。 |
| 4. | The entrapment efficiency in cationic liposomes was in the same range even if the drug loading was increased 即使填充药量增加,带有阳离子的脂质体的包封率(仍处于相同范围)没有变化。 |
| 5. | Soil quality - chemical methods - determination of the potential cation exchange capacity and exchangeable cations using barium chloride solution buffered at ph 8 . 1 土质.化学方法. ph值为8 . 1时利用氯化钡缓冲溶液对潜在阳离子交换能力和可交换阳离子的测定 |
| 6. | This product contains concentrated cation , lt can neutralialize residual alkali left in clothes , lessen adhere of the fabrics , relieve static electricity of fabrics and save up dehydration and drying time 这是一种含有浓缩阳离子的织物柔软剂,在整个脱水过程中,中和剩余在织物里的游离碱酸使织物去除静电,使其柔顺易整理,并能节省脱水时间,干燥时间,以及减少织物互相粘着。 |
| 7. | In this chaptef , we obtain tliree opl smictures of corresponding compounds and conclude through comparison that plane property goes bad with length of substitutes attaching to the cations . chaper 3 : has systendic studies of opticai propenies of this seriai compounds 共解析了三种化合物的单晶结构,并且从结构分析发现随着阳离子上的取代基的加长,阳离子的平面性下降第三章主要对这一系列化合物的光学性质作了系统研究。 |
| 8. | Moreover , hrtem observations indicate that the process is very selective : even in apparently homogenous illite or i / s , some crystals went opening and some remain unchanged . and the replacement of k cations by alkylammonium cations is not restricted to crystal edges , but extends to entire interlayer . the above facts are the basis of alkylammonium cations method applied to the diagenetic age of sedimentary rock Iaa法是以沉积岩的粒度?年龄谱为基础的,利用这种方法可以获得同一样品不同粒级伊利石的年龄,随着粒级的减小,样品的年龄也减小,当碎屑伊利石的含量趋于零时,可以得到自生伊利石的成岩年龄;烷基胺阳离子取代法是一种化学方法,利用烷基胺阳离子的选择性替代性,可以去除碎屑伊利石成分中的k离子,从而能够获得自生伊利石的年龄。 |
| 9. | Proceeding from a cardinal reason affecting wettability reversal of rocks - the absorption of asphaltenes of oil in the pore surface of rocks , the effects of injection water salinity and cation type on this absorption are separately researched ; thus the vital factors affecting wettability reversal of rocks are derived 摘要从影响岩石润湿性转变的一个重要原因原油中沥青质在岩石孔隙表面的吸附出发,分别研究了注入水中含盐量的高低,以及注入水中阳离子的类型对原油中沥青质在岩石孔隙表面的吸附的影响,从而得出了影响岩石润湿性转变的重要因素。 |
| 10. | Abstract : this paper , by analyzing the effect of differences of mineral structure of 2 1 layer minerals , the properties of their interlayer charge and changes of some properties caused by weathering on the attractive force for interlayer cation , reached the conclusion that : the fixation capacity is determined by the ratio of the total amount of interlayer charge and that of tetrahedral charges . the relationship of interlayer cation fixation and octahedral structure of secondary minerals is probably different from that of primary minerals . the oxidation and reduction of variable valence cations can greatly influence the cation fixation capacity 文摘:分析2 1型矿物的结构差异、层间电荷性质以及在风化过程中某些性质的变化对层间阳离子吸引力的影响,对已有报道中一些矛盾的结果或不具普遍意义的结论进行了讨论.得出几个较为明确的结论:层间总电荷与四面体电荷所占比例大小共同决定矿物对层间阳离子的固定能力;原生矿物中八面体结构与层间阳离子固定间的关系对次生矿物而言,也许并不一致;八面体中可变价阳离子的氧化还原,可导致矿物固定阳离子能力发生较大变化 |