查询词典 h-bomb

A process for reducing nitryl with unstable guanyl on para-position of benzene ring into azyl features that active metal reacts on organic acid and solvent at ordinary temp. and pressure to reduce N-(2 or 3-M, 5 or 6-M',4-nitrophenyl)-N',N'-dimethyl acetamidine into N-(2 or 3-m, 5 or 6-M', 4-aminophenyl)-N',N'-dimethyl acetamidine, where M=H,-R,-OR,-COOR (R=H, C1-C6); and M'=H,-R,-OR,-COOR (R=H, C1-C6). Its advantages include reduced by-reaction and high reducting rate up to 80%-95%.

本发明是将苯环上对位带有不稳定脒基的硝基还原为氨基的方法，采用活泼金属，如：锌或锡，与有机酸和适当的溶剂，在常温、常压下发生反应，将N－（2或3－M，5或6－M＇，4－硝基苯基）－N＇，N＇－二甲基乙脒还原为N－（2或3－M，5或6－M＇，4－氨基苯基）－N＇，N＇－二甲基乙脒，其中M＝H，－R，－OR，－COOR（R＝H，C1－C6），M＇＝H，－R，－OR，－COOR（R＝H，C1－C6），减少了副反应，使还原收率达到80％以上，最高可达95％以上，更适用于工业化生产。

Result The spindles of oocytes were abnormal at 25℃ for 20 min, and disappeared at 25℃ for 30 min or at 4℃ for 10 min. 5, 10, 20 and 40 μg/ml Cytochalasin B for 2 h had no effects on the spindles of the oocytes. The spindles of oocytes were abnormal in 20 μmol/L colchicines for 1 h, and disappeared in 40 μmol/L colchicines for 1 h. The structure of spindles were perfect for 1-12 h when the oocytes were fixed in 4% paraformaldehyde.

结果］卵母细胞在25℃、20 min时纺锤体异常，25℃、30 min或4℃、10 min时纺锤体缺失；5、10、20和40μg/ml细胞松弛素B作用2 h未对纺锤体产生影响；卵母细胞在20μmol/L秋水仙素中作用1 h纺锤体异常，40μmol/L时作用1 h纺锤体缺失；在4%多聚甲醛中4℃条件下，卵母细胞纺锤体结构以固定时间为1~12 h效果较好。

The result of the experiment showed that the stomach toxicity caused by emamectin benzoate for bee LC50(48 h): 1.024 mg/L, the contact caused for bee LD50(48 h): 0.009 064 mg/bee, for male and female partridge LC50(7 d): 35.92, 38.53 mg/kg, for zebra fish LC50(96 h): 0.239 0 mg/L, for silkworm LD50(96 h): 0.01109 mg/kg.

试验结果表明，甲氨基阿维菌素苯甲酸盐对蜜蜂触杀LD50(48 h)为0.009064 mg/蜂，胃毒LC50(48 h)为1.024 mg/L，对雌、雄鹌鹑LC50(7 d)为35.92、38.53 mg/kg，对斑马鱼LC50(96 h)为0.2390 mg/L，对家蚕LD50(96 h)为0.01109 mg/kg桑叶。

The Zoea Ⅳ had LC50 of 0.085 and 0.047 mg/L at 24 h and 48 h, and safe concentration of 0.0043 mg/L, indicating that the LC50 and safe concentration increased with the development of the larvae. The megalopa had LC50 of 0.085 and 0.050 mg/L at 24 h and 48 h, and safe concentration of 0.0052 mg/L.

分别为0.019 mg/L和0.010 mg/L，安全质量浓度为0.0038 mg/L；三疣梭子蟹Ⅱ期溞状幼体24 h LC50和48 h LC50分别为0.085mg/L和0.047 mg/L，安全质量浓度为0.0043 mg/L；三疣梭子蟹大眼幼体24 h LC50和48 h LC50分别为0.085 mg/L和0.050mg/L，安全质量浓度为0.0052 mg/L。

By the catalyzed of F3H, F3'H and F3'5'H, the biosynthesis of anthocyanins branched three pathway to form pelargonidin, cyanidin and delphinidin separately. DFR, F3'H and F3'5'H are the most important genes for introducing new metabolic branches by genetic transformation to plants that lack some kinds of flower pigments.

花色素苷的生物合成主要由于F3H，F3'H和F3'5'H三个关键酶的作用形成3个分支，最终分别生成橙色到砖红色的天竺葵素糖苷，红色的矢车菊素糖苷和蓝色到紫色的飞燕草素糖苷，因此， F3'H，F3'5'H和DFR基因是利用遗传转化引入花卉植物原本缺乏的花色代谢途径的关键基因。

Results: several fos+ neurons of control group distribute in the bla dispersively while the swimming groups express significantly higher, and increases progressively with time (0.5 h＜1 h＜2 h), the peak of fos+ neurons happened at 2 h, and appears significant difference as compared with the control group ( p ＜0.01); then descends regularly.

结果：对照组大鼠bla 内c-fos阳性神经元少量散在分布；模型组明显增多，且随着时间的增长呈上升趋势（0.5 h＜1 h＜2 h），2 h达到峰值，与对照组相比具有非常显著性差异（ p ＜0.01）；然后逐渐下降。

Methods Eighty healthy nulliparous parturients scheduled for patientcontrolled epidural analgesia in labour, were randomly divided into 4 groups(n=20) according to different infusion speed:group I with a speed of 4 ml/h, group II with 6 ml/h, group III with 8 ml/h, group IV with 10 ml/h.

对80 例行自然分娩的单胎足月初产妇，均采用硬膜外自控分娩镇痛，根据不同背景输注速率随机分为四组，A组输注速率为4 ml/h，B组为6 ml/h，C组为8 ml/h，D组为10 ml/h。

Several aminated Fullerene derivatives were synthesized by the reaction of C〓 with phenylamine, diphenylamine and triethylamine etc., the phenomena of fragmentation and aggregation of the aminated Fullerene derivatives in UV laser desorption ionization mass spectrometer was observed, a few nitrogenous poly-Fullerene ions, such as C〓NH, C〓N〓H〓, C〓N〓H〓, C〓N〓H〓, C〓N〓H〓 etc.

对C〓富勒烯与苯胺、二苯胺、三乙胺等形成的加合物在紫外激光解吸电离作用下可以发生不同寻常的裂解和聚合现象进行了研究，认为其形成机理为：上述加合物在紫外激光解吸电离作用下，发生裂解产生C〓NH、C〓N及C〓等离子，然后它们之间发生聚合，形成如：C〓NH、C〓N〓H〓、C〓N〓H〓、C〓N〓H〓、C〓N〓H〓等含氮原子的聚富勒烯离子。

Results In Xenopus oocytes, GVBD rate in TGAtreated groups was higher compared with control group, at 2 h, 4 h, and 6 h after TGA treatment, while there was no difference between TGAtreated and control group at 8 h.

结果 在非洲蟾蜍卵母细胞中，TGA处理2 h、4 h和6 h后，各TGA处理组的GVBD率均高于对照组，但在8 h时，TGA处理组与对照组GVBD率之间无统计学差异。

Nevertheless, it is seen from the figure that the H concentration within the a-Si:H film does not significantly decrease for anneals up to 450°C, indicating the possibility of a partial release of H from the SiNx:H towards the substrate.

不过，它是从数字的H浓度在A - Si ： H薄膜并不显着降低，为anneals可达450 ° C时，说明有可能在局部释放的H从氮化硅： H的对衬底。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。