| 1. | the diphenylamine was deuterated by refluxing with a mixture of heptane and for an hour. 将二苯胺与正庚烷和的混合物加热回流1小时,可使二苯胺重氢化。 |
| 2. | the diphenylamine was deuterated by refluxing with a mixture of heptane and for an hour. 将二苯胺与正庚烷和的混合物加热回流一小时,可使二苯胺重氢化。 |
| 3. | Sodium diphenylamine - 4 - sulfonate 二苯胺四磺化钠 |
| 4. | < uk > the diphenylamine was deuterated by refluxing with a mixture of heptane and for an hour . < / uk > < uk >将二苯胺与正庚烷和的混合物加热回流1小时,可使二苯胺重氢化。 < / uk > |
| 5. | < uk > the diphenylamine was deuterated by refluxing with a mixture of heptane and for an hour . < / uk > < uk >将二苯胺与正庚烷和的混合物加热回流一小时,可使二苯胺重氢化。 < / uk > |
| 6. | Energetic materials for defense . physical - chemical analysis and properties . diphenylamine and nitrated derivatives of single and double base materials . method by liquid chromatography 国防用高能材料.物理-化学分析及特性.单基和双基材料的二苯胺和硝化衍生物.液相色谱法 |
| 7. | Energetic materials for defense . physical - chemical analysis and properties . diphenylamine of single and double base materials with dinitrotoluene or ethylene glycol dimethracrylate . method by liquid chromatography 国防用高能材料.物理-化学分析及特性.含三硝基甲苯或乙二醇二甲基丙烯酸酯的单基和双基材料的二苯胺.液相色谱法 |
| 8. | Energetic materials for defense . physical - chemical analysis and properties . diphenylamine of single and double base materials without dinitrotoluene , ethylene glycol dimetracrylate . method by liquid chromatography 国防用高能材料.物理-化学分析及特性.不含三硝基甲苯及乙二醇二甲基丙烯酸脂的单基和双基材料的二苯胺.液相色谱法 |
| 9. | We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene , stilben , thiophene as center attached with amine , diphenylamine , diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length , n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level . it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors , and that a corresponding correlation for the two - photon absorption is decreasing . it is also found that a most crucial role for the two - photon absorption is played by the n center 我们分别以苯、二苯乙烯、噻吩为中心,氨基、二苯氨基和二乙氨基为电子给体,硝基为电子受体组合形成的分子为研究对象,在从头计算的水平上用密度泛函理论计算了这些分子在低激发态下的单、双光子吸收强度,重点研究了分子的长度、中心和给体的供电子能力对分子单、双光子吸收的影响。研究结果表明,分子长度与单光子吸收强度之间有密切关系,而在双光子吸收中这种关系较弱;中心在双光子吸收中具有重要的作用;在中心和受体一定的情况下,增加给体的供电子能力,可提高双光子吸收强度。 |
| 10. | Abstract : in the paper the deterrent content and the concentration of diphenylamine dibuty l phthalate and centralite in finished product manufactured by two different methods were analyzed by high performance liquid chromatography , which can provi dereference for adjusting the technology of the propellant manufacture 文摘:利用高效液相色谱仪分别测定了发射药在两种制备工艺中的钝感剂邻苯二甲酸二丁酯和二号中定剂的含量及邻苯二甲酸二丁酸在其中的浓度梯度分布,为调整发射药制备工艺提供了参考。 |