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Isoquinoline alkaloids of Litsea euosma were studied for the first time and compounds were obtained. The structure of these compounds were elucidated as boldine ,norisoboldine ,reticuline ,β-sitosterol and β-daucosterol by spectral analysis.
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首次对清香木姜子(LitseaeuosmaW.W.Smith)中的异喹啉生物碱进行了研究,采用硅胶柱层析、重结晶等分离手段从中分离纯化得个化合物,通过现代波谱技术及与标准品对照等方法鉴定了它们的结构,包括 个异喹啉生物碱和β 谷甾醇及β 胡萝卜甙. |
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Isosafrole was synethesized through the isomerization of safrole with KOH and NaOH above the temperature of 00℃. 9% safrole was converted and the yield was 9%, the purity of the product was 99%.
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在NaOH与KOH作用下 ,在 0℃以上使黄樟油素异构化 ,合成了异黄樟油素 ,转化率达 9% ,收率达 9 % ,产品纯度 99%以上。 |
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Isothermal Forging Process of 8 Alloy Portait Rockerarm
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8铝合金纵向摇臂等温模锻工艺的研究 |
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Isozymes and Their Relationship with Neoteny in Neosalanx oligodontis Chen
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寡齿新银鱼同工酶及其与幼态持续的关系 |
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It shows that the model of dissolution equilibrium of DHVR in mixed C solvent obeys the Flory Huggins equation and the solubility parameters of DHVR under ～℃ can be calculated by the equation.
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果表明，DHVR与混合C溶剂的溶剂平衡模型遵循Flory－Huggins方程，由此计算得到了DHVR在 ～℃的混合C溶剂中的溶解度参数； |
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It was also showed that the concentration content and concentration factor of Lanthanum in Closterium lunula under 0 mg/L(La + ) treating were higher than which under mg/L(La + ) treating.
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高浓度（0mg／L）处理组的富集量和富集系数，均高于低浓度的（mg／L）处理组 |
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It acts as a catalytic subunit which interacts with the Fanconi animia core complex to induce the mono-ubiquitinylation of FANCD. The mono-ubiquitinylated FANCD, BCRCA and BCRCA constitute a complex which is concerned with the DNA repair.
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另一个则与人的范康尼氏贫血症(Fanconi animia)的发病有关,它作为一个催化亚基与范康尼氏贫血症核心复合物(Fanconi animia core complex)一起使得FANCD单素化,单泛素化后的FANCD将与BCRCA、BCRCA形成复合物参与DNA的修复过程[][]。 |
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It adopts the relative triggering mode to realise the phase-shifting and quick adjustment of the control-angle α, and makes sure that the maximum time of losing control is less than . ms.
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在控制算法上，采用相对触发方式，实现控制角α的移相和快速校正，从而保证最大失控时间小于 ． ms。 |
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It alo included a study on the influence of transgenic paulownia on two agriculturalbacteria: Bacillus thringiensis and Sinohizobium melilot. After half year, the bacteria were collected from soils and quantified.
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此外进行了转基因泡桐对苏云金芽孢杆菌Bacillus thringiensis和苜蓿中华根瘤菌Sinohizobium melilot影响的研究，结果表明：半年后，两种供试菌在在半年后两种泡桐植株的根际土壤中的数量均有大幅的减少，但是转基因植株和对照植株在减少的量上没有显著差异。 |
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It also builts new process information model based on XML, and refines theprocess information express language--Process Markup Language (PML).
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进而建立了基于XML的新型工艺信息模型，定义了工艺信息描述语言——工艺标记语言(Process Markup Language,PML)。 |
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It also includes multi-scale edge detect and signal bizarre theory.
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还研究了图像检测中的基于多尺度边缘检测方法及小波分析的信号奇异性检测理论。 |
