查询词典 acetone

Diacetyl cellulose was blended with PHBV in mixture of chloroform/acetone. It was a failure to improve the mechanical properties of the blends, because the hydrogen bond between CDA and PHBV was very weak, and there was obvious phase separation in the blends..

二醋酸纤维素与PHBV经溶液共混，PHBV的力学性能没有改善，原因可能是CDA-PHBV分子间的氢键作用较弱，组分间发生严重相分离，不利于性能提高。

DPPH method, pyrogallol method and Fenton reaction were used to study the scavenging ability of extracts with 95% ethanol, ethyl acetate, acetone, acetic acid, chloroform, methanol to free radical activity.

方法］应用DPPH法、邻苯三酚自氧化法和Fenton反应分别研究了浓度95%乙醇、乙酸乙酯、丙酮、乙酸、氯仿、甲醇提取物清除自由基活性的能力。

They are insoluble in water, ethanol, methanol, acetone, chloroform and benzene, but soluble in DMA, DMF and DMSO.

它们溶于N，N-二甲基甲酰胺、N，N-二甲基乙酰胺和二甲基亚矾等溶剂，但不溶于水、乙醇、甲醇、丙酮、氯仿和苯。

Thisresearch adopts the method of PA to realize the transfer of BP-ANN model madeup of acetone, benzene, chloroform and methanol between two FTIR apparatus.

由于其更针对在不同仪器上的量测信号进行处理，消除这些信号间的差别，同时具有较好的适应性，因此是一种更有意义的模型传递方法。

In this work,a full optimal calculation on the molecular geometry and electronic structure of C24H30O8 has been performed using density functional theory methods at B3LYP/6-31G* level.The solvent effects of C24H30O8 have also been investigated based on Onsager self-consistent reaction field model in chloroform,acetone,DMSO and water.

采用密度泛函理论方法，在B3LYP/6-31G*水平下全优化得到了该化合物的分子几何构型和电子结构；依据Onsager自恰反应场模型考察了其在氯仿、丙酮、二甲亚砜及水等溶剂中的溶剂化作用；基于气相优化结构进行了B3LYP/6-31G*振动分析，用0.9613校正后的主要红外光谱与实验符合得很好。

In this work, a full optimal calculation on the molecular geometry and electronic structure of C24H30O8 has been performed using density functional theory methods at B3LYP/6-31G(superscript *) level. The solvent effects of C24H30O8 have also been investigated based on Onsager self-consistent reaction field model in chloroform, acetone, DMSO and water. On the basis of optimized geometry in gas phase the vibration analysis is carried out and the IR principle peaks scaled by 0.9613 are in good agreement with experimental.

采用密度泛函理论方法，在B3LYP/6-31G水平下全优化得到了该化合物的分子几何构型和电子结构；依据Onsager自恰反应场模型考察了其在氯仿、丙酮、二甲亚砜及水等溶剂中的溶剂化作用；基于气相优化结构进行了B3LYP/6-31G振动分析，用0.9613校正后的主要红外光谱与实验符合得很好。

Polylactideand indomethacin were dissolved in a mixxed solvent of chloroform and acetone(2/1 v/v)to make even spinning solution.

将药物——消炎痛和聚乳酸同时溶解在三氯甲烷∶丙酮(体积比2∶1)的混合溶液中，制得均匀的纺丝液，通过静电纺丝制备载药PLA纤维膜。

The cold-resistance effect of the Ether extracts, the n-BuOH extracts, the acetone and the chloroform extracts were obvious in the 7 different plant extracts.

试验结果表明： 1、植物材料前胡的7种不同溶剂提取物中，以乙醚、正丁醇、丙酮和三氯甲烷提取物质的抗寒效果明显。

Methods The derivation with dansyl chloride was followed by normal-phase chromatography with a mobile phase of acetone/chloroform (2:98) at a flow rate of 1 mL/min and with the detection wavelength set at 425nm.

唾液经纯化、丹酰氯衍生化后用苯提取，以Hypersil BDS CN为正相色谱柱，丙酮－氯仿(2：98)为流动相，流速1 mL/min进行测定，检测波长为425 nm。

Moreover CGANN was utilized to recognize the patterns of piezoelectric TSM array data set. The results show that the algorithm has strong compatible capacity and can correctly identify the samples of different classes of chemical substances such as ethanol, chloroform and acetone.

同时我们使用CGANN方法作为模式识别工具，对压电TSM晶体传感器阵列数据进行了分析，结果发现压电TSM晶体传感器阵列能够准确的识别气态物质，比较其他方法而言，CGANN具有明显的优点，如容错能力更强，识别速度更快等，CGANN方法同压电TSM晶体传感器阵列的结合在气态物质识别中有着广阔的应用前景。

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。