目的优选速溶药茶颗粒提取液的最佳干燥方法及成型工艺,使其最大限度地保留茶香,口感最好;使该制备工艺科学、合理、可行。方法以药茶中最不稳定成分茶多酚的含量作为评价工艺的指标,采用福林酚法测定药茶中茶多酚的含量,采用正交设计...目的优选速溶药茶颗粒提取液的最佳干燥方法及成型工艺,使其最大限度地保留茶香,口感最好;使该制备工艺科学、合理、可行。方法以药茶中最不稳定成分茶多酚的含量作为评价工艺的指标,采用福林酚法测定药茶中茶多酚的含量,采用正交设计实验法优选药茶喷雾干燥的最优工艺参数,再用完全随机t检验比较喷雾干燥法和冷冻干燥法药茶中茶多酚的损失量;以口感、外观等为评价指标,采用等级一致性检验法筛选速溶药茶颗粒最优成型工艺。结果药茶最佳喷雾干燥工艺参数为药液温度为50℃,进风温度为120℃,泵药速度为5 m L/min,通针次数为5次/min。喷雾干燥较冷冻干燥药茶中茶多酚损失少。制粒中不加任何辅料,仅用92%的乙醇湿法制粒,湿粒用25℃通风干燥。结论按此工艺制备速溶药茶颗粒可最大限度地保存茶香,与用茶砖浸泡的茶汤比较,口感无明显差别,达到了速溶药茶颗粒的研制目标。展开更多
This paper addresses the issue of checking consistency in information models. A method based on constraint programming is proposed for identifying inconsistency or proving consistency in information models. The system...This paper addresses the issue of checking consistency in information models. A method based on constraint programming is proposed for identifying inconsistency or proving consistency in information models. The system described here checks information models written in the ISO standard information modelling language EXPRESS. EXPRESS is part of the ISO STEP standard used in the manufacturing and process industries. This paper describes the checking procedure, including EXPRESS model formalization, constraint satisfaction problem (CSP) derivation from the formalized model and satisfaction checking of the derived CSPs. This paper shows a new domain in which constraint programming can be exploited as model verification and validation.展开更多
Four rapid spectral comparison methods are introduced in mobile labs.They are conformity test method,general correlation coefficient method,reverse correlation coefficient method and correlation coefficient method usi...Four rapid spectral comparison methods are introduced in mobile labs.They are conformity test method,general correlation coefficient method,reverse correlation coefficient method and correlation coefficient method using characteristic spectral ranges.The first method is used for tracking the movements of drugs in the distribution channels;the second is used for quickly identify new counterfeit drugs;the last two are used to screen drugs illegally added in Traditional Chinese Medicine （TCM）.The applicability of the four methods is evaluated with counterfeit and authentic drugs.Our results show that these methods can be quickly constructed and used to identify counterfeit drugs accurately.展开更多
文摘目的优选速溶药茶颗粒提取液的最佳干燥方法及成型工艺,使其最大限度地保留茶香,口感最好;使该制备工艺科学、合理、可行。方法以药茶中最不稳定成分茶多酚的含量作为评价工艺的指标,采用福林酚法测定药茶中茶多酚的含量,采用正交设计实验法优选药茶喷雾干燥的最优工艺参数,再用完全随机t检验比较喷雾干燥法和冷冻干燥法药茶中茶多酚的损失量;以口感、外观等为评价指标,采用等级一致性检验法筛选速溶药茶颗粒最优成型工艺。结果药茶最佳喷雾干燥工艺参数为药液温度为50℃,进风温度为120℃,泵药速度为5 m L/min,通针次数为5次/min。喷雾干燥较冷冻干燥药茶中茶多酚损失少。制粒中不加任何辅料,仅用92%的乙醇湿法制粒,湿粒用25℃通风干燥。结论按此工艺制备速溶药茶颗粒可最大限度地保存茶香,与用茶砖浸泡的茶汤比较,口感无明显差别,达到了速溶药茶颗粒的研制目标。
文摘This paper addresses the issue of checking consistency in information models. A method based on constraint programming is proposed for identifying inconsistency or proving consistency in information models. The system described here checks information models written in the ISO standard information modelling language EXPRESS. EXPRESS is part of the ISO STEP standard used in the manufacturing and process industries. This paper describes the checking procedure, including EXPRESS model formalization, constraint satisfaction problem (CSP) derivation from the formalized model and satisfaction checking of the derived CSPs. This paper shows a new domain in which constraint programming can be exploited as model verification and validation.
基金National Key Technologies R&D Program Foundation of China(Grant No.2008BAI55B06).
文摘Four rapid spectral comparison methods are introduced in mobile labs.They are conformity test method,general correlation coefficient method,reverse correlation coefficient method and correlation coefficient method using characteristic spectral ranges.The first method is used for tracking the movements of drugs in the distribution channels;the second is used for quickly identify new counterfeit drugs;the last two are used to screen drugs illegally added in Traditional Chinese Medicine （TCM）.The applicability of the four methods is evaluated with counterfeit and authentic drugs.Our results show that these methods can be quickly constructed and used to identify counterfeit drugs accurately.
