查询词典 SN

Aggregately, we computed 24 reaction pathways, and found out 26 intermediates and 36 transition states in this section.

我们主要研究了Hg和Sn这两种元素在燃烧过程的微观反应特性，研究了17个反应体系，计算了24条反应通道，找到了26个反应中间体和36个反应过渡态。

Electrochemical deposition of the Sn-Co-Zn ahoy was studied by cyclic voltammetry and chronoamperometry.

采用X射线衍射和扫描电子显微镜分析了该合金材料的相结构和表面形貌。

At baseline and on day 1, 3, 7, 14, 21 following MPP+ injection, the degree of microglial activation was examined by detecting the immunodensity of OX-42 in the substantia nigra. The number of viable dopaminergic neurons was determined by measuring tyrosine hydroxylase positive neurons in the SN. Behavioral performances were evaluated by counting the number of rotations induced by apomorphine, calculating scores of forelimb akinesia and vibrissae-elicited forelimb placing asymmetry.

分别在基线、MPP+注射后第1、3、7、14、21天时通过测定黑质区域OX-42的免疫荧光强度评定小胶质细胞的激活程度，测定酪氨酸羟化酶的表达情况评定存活多巴胺神经元的数量；通过阿朴吗啡诱导的旋转行为、前肢跨步及触须引发的不对称放置试验得分测评行为学表现。

Then rAAV-DJ-1 was transfected into HEK-293 cells for packaging. AAV vectors encoding human DJ-1 protein were stereotactically injected into the rat SN 4 weeks prior to rotenone lesion in SN. Tyrosine hydroxylase protein was determined using immunohistochemical staining. Ethovison software allowed measurement of movement distance in 30 minutes.

并转染HEK-293细胞，进行腺相关假病毒颗粒包装，所得病毒颗粒注射到大鼠脑内感染黑质神经细胞；4周后，注射鱼藤酮于大鼠黑质相同脑区；通过免疫组织化学方法鉴定TH蛋白表达情况，采用动物行为轨迹分析软件计算大鼠30 min内运动距离。

Voltize Sn with Hu+HBr,Dotermination of Trace Bi in Purity Sn products by HGAFS with satisfactory results.

采用HCl+HBr挥发除锡，以HG-AFS法测定精锡产品中微量铋，效果良好。

The effect of bath composition,operating conditions and additives on Sn content of electrodeposits during the process of Sn-Ni alloy electroplating in alkaline baths had been studied.

在研究碱性锡镍合金的电沉积过程中，讨论了镀液中各成分的含量、电镀工艺条件的改变及添加剂对锡镍合金镀层成分和外观的影响规律。

When tin is added, the pulverization rate decreased, tin segregates to the surface of the alloy, and the protection layer SnO〓 is formed. It inhibits the segregation and oxidation of La to the surface, so the cycle life is improved.

提出了容量衰减机制：Sn元素的加入降低了合金的粉化，使Sn向表面偏聚，生成SnO〓保护膜，阻止La向表面偏析-氧化，从而提高了电极的循环寿命。

The main results are:In logic system r,G r, tautologies can not be get by using upgrade algorithm to non tautologies within finite many times; In logic system S n , tautologies can be get by using upgrade algorithm to an arbitrary formula of F at most n times; Congruence partitions about ...

主要结果是：在逻辑系统 Gr，Gr 中，重言式不可能由对非重言式进行有限次升级算法得到；在逻辑系统Sn 中，对任一公式最多进行n次升级算法即可得到重言式；利用可达广义重言式概念和α矛盾式概念分别在 Gr，Gr，Sn 中给出了F的一个关于同余的分划。

Charge/discharge results revealed that one potential plateau at about 0.22 V is observed in all cases in the first cycle, and is shifted to 0.4 V in the second cycle. There appears no obvious decreasing for gravitational specific capacity after 70 cycles for Sn-Co alloy on rough copper foil, which is better than that of Sn-Co alloy on smooth copper sheet.

充放电测试结果表明，光滑铜片和粗糙铜箔上电镀制得的锡钴合金在首次放电过程中均在0.22 V附近给出一个较长的放电电位平台，并在随后的循环中逐渐正移至0.4 V附近。

The contents of 20∶4 and 20∶5 in the SQDG of Spirulina platensis are lower than those of other red algae and brown algae while 16∶2 was undiscovered.

根据测得的7种组分的含量和sn-1和sn-2位脂肪酸的分析计算可得，SQDG主要分子组成为52%~57%(18∶2，16∶0)，11%(16∶0，16∶0)， 7.1%(16∶1，16∶0)，7.7%(18∶1，16∶0)。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。