钾

In this paper, we analyzed the signature sequence in P-domain of K+ channels and the similarities of families and subfamilies of K+ channels by multiple sequence alignment.

本文对钾离子通道蛋白质的P区特征序列作了初步的分析讨论，并对钾离子通道各家族的蛋白质进行了序列相似性分析。

Retrospective analysis of 457 times cases of supervening hyperpotassemia with the hemodialysis treatment on 102 patients of renal failure with hyperpotassemia for 10 years.

回顾性分析10年来采用血液透析等抢救一组肾衰竭并高钾血症病人102例，共并发高钾血症457次的临床过程。

All kinds of tobaccos had the strong activating ability for the mica.

缺钾和对照处理下烟草对云母钾都有较强的活化能力，K326比对照明显增强。

Soils. However , the absolute content of the soil potassium trended to decrease year by year.

年的茶园，连续5年研究了施用钾肥对茶园土壤钾库及钾素平衡的影响。

According to the change of the kinds of elements content in slag, F in slag volatilizes in the form of KF and NaF, KF volatilizes much more easily than NaF, KF plays a leading role in the F volatilization, theoretical analysis shows that the saturation vapour pressure of KF in the test slag is 31. 4 times of NaF; when F content is far more than K, KF volatilization is first order grade reaction, it is dominated by K content, the apparent activate energy is 275. 30KJ/mol.

4依据对含氟熔渣中高温条件下（1450℃、1505℃）的各种元素含量的变化情况，发现氟在熔渣中是以碱金属氟化物挥发，并且，KF比NaF具有更好的挥发性，在氟的挥发中占主导地位，理论研究也证明，在1505℃试验组成的熔渣中，KF的饱和蒸气压是NaF的31.4倍；在含氟量远大于钾含量的情况下，KF挥发为一级反应，受钾浓度控制，其表观活化能为275.30KJ／mol。

For potassium absorption efficiency, maize inbred lines with different tolerances existed significant differences and the difference of potassium utilization efficiency was not significant.

从钾吸收效率来看，不同耐性自交系间存在显著差异，而钾利用效率方面差异不显著。

Nitrogenase activity of nitrogen-fixing bacteria was measured by acetylene reduction assay combined with gas chromatography.

运用乙炔还原法测定了固氮细菌的固氮酶活性，通过测定菌落周围产生的透明圈和混浊圈大小对磷细菌的溶磷活性进行比较，采用火焰分光光度计测定了钾细菌的解钾活性。

It has an important role in regulating the cell volumn, cytoplasmic PH and Ca2+ levels through the Na+/H+ and Na/Ca exchangers, respectively, and in driving a variety of secondary transport processes such as Na+-dependent glucose and amide acid transport.

钠钾ATP酶是维持生物体功能的最基本的酶之一，它通过形成细胞内外钠钾离子的浓度递度来维持细胞膜静息电位、渗透压的稳定、营养物质的主动运输与吸收等多种生理功能。

Keywords: Humic acid; Cultivated brown soil; Potassium release and fixation; K-bearing mineral

中文关键词：腐殖质；耕地棕壤；钾素释放与固定作用；含钾矿物

Absolute potassium content in sugar beet root reached the highest in the harvest time and they improved for as much as the increase of the applies potassium quantity.

叶和叶柄中的绝对含钾量呈单峰曲线变化，峰值分别出现在7月中旬和8月中旬左右。块根的绝对含钾量至状获时达到最高水平。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。