Under long - term seepage condition the soil could be improved and became non - dispersive because the sodium - ion in soil could be moved away and the calcium - ion in river water could enter into the soil 在长期的渗流条件下土样中钠离子随水流易迁移，河水中的钙离子含量大，进入土体后能抑制土样的分散性，促使土体向非散性的方向发展。
As a new energy sources , lithium ion battery has the problem of high price and security trouble , while sodium ion battery prevails over it due to its low cost and excellent security performance , so sodium ion battery will be an attractive potential substitution for lithium ion battery 作为一种新型能源,目前锂离子电池仍存在价格较高、安全性不足等问题。而钠离子电池因具有成本低、安全性能高等独特的优势,是一很有潜力的替代品。
The results indicate that the absolute and relative contents of sodium - ion and calcium - magnesium - ion in soil are important to identify dispersive clay soils , while the content of montmorillonoid is one of key factors and the river water affects the dispersibility of clay greatly 结果表明土样中钠离子和钙镁离子含量多寡和相对含量对粘土分散性具有重要的作用，蒙脱石的存在是粘土分散性的重要因素，河水对粘土分散性能将产生显著影响。
Abstract l : the chinese bird spider , ornithochoctonus huwena , distributed in the hilly areas of yunnan and guangxi in the south of china , was recently identified as a new species and is one of the most venomous spiders in china . in our previous work , we have demonstrated that 0 . huwena venom contains a mixture of compounds with different types of biological activities 它的粗毒中含有多种活性成分，其中研究的比较深入的多为神经毒素，如hwtx - ，这是一种突触前膜n型钙离子通道阻断剂；毒素hwtx - ，它是一种ttx敏感型钠离子通道阻断剂；另外，还从虎纹粗毒中纯化出一种具有凝集活性毒素成分shl - 。
The factors which influenced hydrogel material ' s penetration capability were researched , which included temperature , monomer content , ion concentration , film thickness of hydrogel etc . we found the introduction of organic silicon kh570 could improve pvp hydrogel ' s oxygen and sodium ion penetration capabilities . the penetration capability of hydrogel material was increased to lead then droped with the increase of kh570 content , and improved with increase of nvp content 讨论了渗透温度、单体含量、离子浓度、膜厚度等因素对材料渗透性能的影响，实验表明有机硅的引广东工业大学硕士学位论文入能明显提高pv于水凝胶材料的透氧性能和钠离子渗透性能，其渗透性能随随nvp含量的增加而增大，随kh570含量的增加先增大后减小。
The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla , which comprised 3 subpopulations ( 58 individuals sampled ) , generated by 16 primers was 94 . 56 % , the value of ppb of ceratocarpus arenarius , which had 4 subpopulations ( 80 individuals sampled ) , using 16 primers was 98 . 00 % . the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius , while the latter had much more genetic diversity than the former . moreover , the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations , which indicated that there were more genetic variations within the subpopu 另外，通过rapd资料的聚类分析及相关性分析研究，发现无叶假木贼和角果藜自然种群的遗传结构与绿洲沙漠过渡带的微生境生态因子(主要是土壤因子)相关，其中无叶假木贼亚种群遗传多样性水平不仅与土壤含水量( w ) 、钾钠离子浓度( k + na )和氯离子浓度( cl )呈显著的正相关( p 0 . 05 ) ，还与土壤中有机质( som ) 、全氮( nt )和全磷( pt )含量呈显著的负相关；同时，角果藜种群的遗传多样性水平与土壤中有机质( som )和全氮( nt )含量呈显著的正相关，而与co _ 3 ~ ( 2 - )浓度呈显著的负相关；除此之外，其它土壤生态因子与两物种遗传多样性水平的相关性均不显著(卜0 . 05 ) 。
Resistance would be developed when the activities of any of these three enzymes are increased . the three insecticide target - sites are acetylcholinesterase ( ache ) for organophosphate and carbamate insecticides , voltage - gated sodium channels : knockdown resistance ( kdr or kdr - type ) for ddt & pyrethroids and y - aminobutyric acid ( gaba ) receptors for cyclodienes 杀虫剂的作用靶标主要有：有机磷和氨基甲酸酯杀虫剂的作用靶标?乙酰胆碱酯酶； ddt和拟除虫菊酯类杀虫剂的作用靶标?神经轴突钠离子通道；环戊二烯类和吡唑类等杀虫剂的作用靶标? -氨基丁酸( gaba )受体-氯离子通道复合体。
As we know the excellent performance of sodium ion battery depends deeply on the different type and preparation of anode / cathode material . while the effective research on anode material has already been done , study of cathode material with good electrochemical performance has become a key factor 钠离子电池的优异性能在很大程度上取决于正、负极材料的选择和制备,在当前负极材料的研究取得良好进展的前提下,获得钠离子嵌入/脱嵌性能良好的正极材料成为该类电池发展的一个关键。
This review will discuss the role of epithelial sodium channel ( enac ) and the cystic fibrosis transmembrane conductance regulator ( cftr ) in regulating the fluid volume and composition of the reproductive tract and their importance in various reproductive events such as sperm capacitation and implantation 本综述着重探讨了上皮细胞钠离子通道和囊性纤维化跨膜电导调节体对雌性生殖道内液体容量和成分的调节以及它们在不同生殖事件，比如精子获能及着床中的重要作用。
