n4

Molecular Cloning and Analysis of the N4 Neuraminidase Subtype from an Avian Influenza Virus

禽流感病毒N4亚型神经氨酸酶基因的克隆和序列分析

From this experiment , the treatment of N4 was better for radish to achieve high yield and relatively low nitrate content .

综合硝酸盐含量和产量来考虑，在本试验条件下，以N4处理为最佳施氮水平。

Objective To examine the development of N4 mRNA neurons in the hippocampus and frontal cortex of rats .

目的研究大鼠N4mRNA神经元在前皮质与海马的时空表达模式。

The enhanced film is a usual apparatus in optics , but current N4 films can 't culminate the light .

增透膜是光学中常用的器件，但常用的N4薄膜，并没有使透射光的光强达到最大。

Development of N4 mRNA neurons in hippocampus and frontal cortex of the rat & in situ hybridization histochemistry and RT-PCR study

大鼠海马与前皮质N4mRNA神经元的发育&原位杂交与RT-PCR研究

The soil microbial biomass carbon of the treatments in N4 decreased 27.5 % averagely and soil microbial biomass nitrogen decreased 31.2 % averagely .

而M4处理土壤微生物量碳覆膜后平均降低27.5%，微生物量氮平均降低31.2%。

Antiviral actions of 9 - ( n4 ' - substituted acetaldehyde thiosemicarbazone ) adenine in vitro

9－（N~（4′）取代乙醛缩氨基硫脲）腺嘌呤衍生物的体外抗病毒作用

And while the N4 interchange can degrade adjacent amino acid and can be used for indigo , indoles quinone sewage treatment .

并且N4可以同时降解邻氨基苯甲酸和吲哚醌，可用于靛蓝污水处理。

When the rule engine is invoked on N4 , it reports back that there are no possible solutions for this configuration ; in other words , it is a dead end .

当对N4调用规则引擎后，它将返回报告表明该配置没有可行的解决方案；换而言之，这是一个无解的配置。

In the paper , particle size determination of nano-calcium carbonate was studied utilizing N4 Plus granulometer , and it 's test condition was explored in the course of granularity testing .

采用N4Plus型纳米粒度仪，研究纳米碳酸钙的粒度测试，探索纳米碳酸钙粒度测试过程中的测试条件。

The liquid crystalline monomer N4 is enantiotropic thermotropic LC . it displays sector texture and cracked sector texture , and thus are smectic LC .

液晶单体N4是热致互变液晶化合物，在升降温过程中呈现近晶相的破碎扇形织构和扇形织构，所以液晶单体N4是近晶型液晶。

Studies on antiviral agents ──ⅳ . Synthesis of the derivatives of 6-amino-9 - ( n4 ′ - aromatic substituted acetaldehyde thiosemicarbazone ) purine

抗病毒剂研究&Ⅳ.6－氨基－9－（N~4′－芳香基取代乙醛缩氨基硫脲）嘌呤衍生物的合成

Several 6-amino - 9 - ( N4 ′ - aromatic substituted acetaldehyde thiosemicarbazone ) purines have been synthesized . These new compounds were characterized by elemental analysis and IR spectra .

合成了6个6－氨基－9－（N~4′－芳香基取代乙醛缩氨基硫脲）嘌呤衍生物，并进行了抗核型多角体病毒（NPV）活性实验。

The boundary between the Neogene / Palaeogene Formation is located at the bottom of the N4 zone containing forams . The age of Zhuhai Formation defined by Nanhai East Corporation is Early Miocene .

上/下第三系界线置于浮游有孔虫N4带的底较为合适，南海东部公司目前所定义的珠海组的时代应归于早中新世；

In this paper , author have introduced an algorithm computing minimum free energy of the RNA secondary structure to find the RNA secondary structure having minimum free energy . The time complexities of this algorithm is not more than O ( n4 ) .

本文以寻找最小自由能二级结构为目的，给出了RNA二级结构的最小自由能算法，该算法的时间复杂性不超过O（n~4）。

In the medium and latter stages ( after the first soil drying in field ) addition of higher level N fertilizer N3 ( 270kg / hm2 ) and N4 ( 360kg / hm2 ) could stimulate strongly N2O emissions .

在水稻生长中后期（第1次烤田后），N3处理（270kg/hm2）和N4处理（360kg/hm2）的较高水平的氮肥加入能强烈刺激N2O排放。

When the nitrogen level is N4 ( 168mg / kg ) , compared with N1 , increasing the accumulating amount of material 48 % , chlorophyll content 68 % , Pro content 9 % , and depressing MDA content 32 % of Lolium .

当施氮水平为N4（168mg／kg）时，与N1相比，提高了黑麦草于物质积累量48.5%，叶绿素含量67.9%，脯氨酸含量9.6%，降低了丙二醛含量32.7%；

Methods SNSCs were isolated mechanically from rat embryonic ( E10 to 11d ) spinal cord under microscope . SNSCs were cultured and maintained in serum-free medium . Directional differentiation from SNSCs to neurocytes was induced by adding N4 supplement .

方法显微机械分离孕10～11d胚胎大鼠脊髓神经干细胞，无血清悬浮培养，以复合添加剂N4定向诱导分化，并拍照记录不同时期细胞分化的形态；

It is shown by the emission spectra that there are three channels of excitation in the N4 + and Na collision system : ( 1 ) Single-electron capture into excited states , ( 2 ) Double-electron capture into excited states , ( 3 ) Direct excitation of target atoms .

研究表明，在N4＋＋Na碰撞体系中存在三种激发通道：（1）单电子俘获激发；（2）双电子俘获激发；