查询词典 NM

Immature embryos of maize inbred line 4112 were cultured with 6 kinds of culture medium contained the same concentration and combination phytohormone such as N6,MS,NB,NM,MB and NMB to observe the effects of callus induction.

方法］用6种含有相同浓度和配比的植物激素的培养基N6、MS、NBM、NM、MB、NMB对玉米自交系4112幼胚进行组织培养，观察诱导愈伤组织的效果。

The conclusions were as follows: theνO-H andνC=O IR absorption maxima shifted towards higher wave numbers after imprinting 17β-estradiol on TFMAA-co-TRIM copolymer with the red shift of theνO-H groups being apparent after precipitation polymerization for 16h while that forνC=O groups being observed after polymerization for 24h. A strong interaction between TFMAA and 17β-estradiol was confirmed by the high selectivity for 17β-estradiol, as indicted by the values of the separation factor of isomers of 17β-estradiol/17α-estradiol (2.28) and the imprinted factor (3.01). Particle diameter of TFMAA-co-TRIM polymer was between 300 nm and 1.5μm, which suited well for solid phase sorbent throughout at low column pressure. The recognition of imprinting TFMAA-co-TRIM polymer for sterol molecules was driven by enthalpy eluted with acetronitile, and low temperature was in favor of the separation of sterol structure analogues on imprinting column. TFMAA-co-TRIM polymer possessed of determinate anti-heat stability, with melting point beginning at 255.84℃, Tp=257.40℃, control TFMAA-co-TRIM polymer and imprinting TFMAA-co-TRIM polymer were respectively decompounded at 267.79℃and 343.11℃, and solid micro-extraction noddle prepared by the special polymerization also showed definite recognition for 17β-estradiol by GC/MS detecting at 270℃. By selection of various washing and elution solvents, elution reagents of close polymerization system were of more advantage in template molecules retention and recognition on molecularly imprinted solid phase extraction column. At a certain extent, progesterone, 17α-estradiol, 17β-estradiol and 4-androstene-3, 17-dione could be intercepted on the MISPE column. Especially, MISPE had high selectivity for progesterone, and imprinting TFMAA-co-TRIM polymer could achieve adsorption balance within 50 min by absorption kinetics test for 17β-estradiol. However, MISPE column showed better selectivity and enrichment property for 17β-estradiol than C18 and CSPE columns according to the data from HPLC and GC/MS analyses. Recovery of 17β-estradiol on MISPE column was up to 85.5% while when prime extracting solution of milk powder was sampled, the recovery of CSPE and C18 columns were 43.7% and 30.7%, respectively.

通过研究阐明：紫外聚合产物TFMAA-co-TRIM中的νO-H振动吸收峰在聚合16h后红移，νC=O振动吸收峰在聚合24h后红移；TFMAA-co-TRIM对雌二醇异构体的印迹因子达到了3.01，α为2.28，优于其它功能单体参与得到的聚合物识别特性；TFMAA-co-TRIM聚合物粒径介于300 nm至1.5μm之间，作为色谱固定相具有良好的通量和低的柱压；在乙腈流动相中，TFMAA-co-TRIM分子印迹固定相的分离过程主要被焓驱动，低温有利于分子印迹固定相分离甾醇结构类似物；TFMAA-co-TRIM分子印迹聚合物在255.84℃时开始熔融，Tp=257.40℃，聚合物CP的降解温度在267.79℃，MIP降解温度在343.11℃，制备的固相微萃取头初步经GC/MS 270℃的耐热性测定；不同的洗提溶剂筛选证明了选择接近聚合溶剂的洗脱体系更有利于MISPE发挥识别效应；分子印迹固相萃取柱对孕酮、17α-雌二醇、17β-雌二醇和雄烯二酮都具有不同程度的保留特性，可作为此类化合物的吸附材料，特别对孕酮强保留的富集特性，可作为孕酮的选择性识别吸附剂，其分子印迹聚合物对17β-雌二醇的吸附动力学测定显示在50 min内基本达到吸附平衡，具有作为传感器核心敏感材料的潜力；对比萃取奶粉中17β-雌二醇性能，MISPE柱比非分子印迹固相萃取柱和C18柱具有更高的保留，回收率依次为85.5%，43.7%和30.7%。

Refractive index and extinction coefficient of the film are determined from the normal incidence transmittance,and refractive index is 2.34 and extinction coefficient is 2.0×10－4 at 550 nm wavelength.

从光学透射光谱计算的折射率和消光系数显示，在550 nm波长处的折射率为2.34，消光系数为2.0×10－4。

Results show that the orthorhombic LiVOPO4, obtained by this rheological phase method, is made up of 10-60 nm particles.

结果表明，采用流变相法制备的LiVOPO4由粒径大约在10-60 nm的小颗粒组成。

MAIN OUTCOME MEASURES: Log of the odds at each locus when the penetrance of NM and LN keloid pedigrees was 90%.

主要观察指标：NM和LN瘢痕疙瘩家系外显率为90%时各位点LOD值。

With this system,2D periodic structure with the period of 900 nm is fabricated but defect is introduced.

使用此实验系统制作出了周期为900 nm的二维结构以及周期为数十微米的带缺陷结构。

Methods Paracetamol was analyzed with HPLC,ODSC18 was packed in the analytical column,and phenacetin as internal standard.the mobile phase consisted of methanolwater(70:30)and the flow rate was 1.0 ml/min,The UV detection wave length was 257 nm.

采用ODSC 18色谱柱，内标为非那西丁，流动相为甲醇水(70：30，v/v)，流速1.0 ml/min，检测波长257 nm，测定泰诺片中对乙酰氨基酚的含量。

TEM showed that nickel phosphide particles on MCM-41, prepared under optimal conditions, are about 5 nm in size.

最合适的负载量为30wt％，最佳条件下制备的催化剂颗粒大小约为5 nm。

Methods The activity was determined by 3 - phosphoglycerate as substrate, the enolase and a series of coupling to 340 nm wave-length automatic analyzer in the determination of total activity could be derived.

PGAM活性测定采用3-磷酸甘油酸为底物，经烯醇化酶等一系列偶联，以340 nm波长在自动分析仪上测定，根据NADH吸光度变化可求出PGAM总活性。

It was verified that the particle size of more than 90% of the acidic phosphorite powder was less than 4.227 μm, and more than 90% of activated phosphorite powder was less than 220 nm.

采用扫描电镜观察、X－射线衍射分析、激光粒度测试，证明了90%的酸化磷矿粉粒径为4.227 μm，90%的活化磷矿粉粒径达到220 nm。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。