采用自制的单循环汽-液相平衡釜,测定了常压下含微量水的乙醇/正丁醇溶液二元体系的汽液平衡数据,测得的乙醇-水数据与文献中数据相比,两者吻合较好,验证了汽-液平衡釜的可靠性。正丁醇-水体系的实验结果发现:当水质量分数<0.02时,...采用自制的单循环汽-液相平衡釜,测定了常压下含微量水的乙醇/正丁醇溶液二元体系的汽液平衡数据,测得的乙醇-水数据与文献中数据相比,两者吻合较好,验证了汽-液平衡釜的可靠性。正丁醇-水体系的实验结果发现:当水质量分数<0.02时,其平衡常数趋于5.0,同时其活度系数趋于3.0。进一步用Aspen Plus v8.4计算机软件,分别对Wilson、NRTL、UNIQUAC活度系数模型进行关联,回归出相应的二元交互作用参数。将关联结果与实验结果相比较,得到关联值与实验值的温度和汽相组成的平均绝对偏差,分别小于0.29 K和0.000 9,一致性良好。该结果为正丁醇-水混合物的分离提供了一定的基础数据,同时也为汽液平衡数据库补充了新的内容。展开更多
Objective:To observe the clinical efficacy of auricular point sticking at different points to relieve the pain in arteriovenous fistula puncture.Methods:A total of 42 patients with arteriovenous fistula were randomize...Objective:To observe the clinical efficacy of auricular point sticking at different points to relieve the pain in arteriovenous fistula puncture.Methods:A total of 42 patients with arteriovenous fistula were randomized into a Shenmen(TF4)group and an Elbow(SF3)group by the random number table method,with 21 cases in each group.After enrolled into different groups,before the dialysis,patients were given auricular point sticking with Wang Bu Liu Xing(Semen Vaccariae)seeds at Shenmen(TF4)and Elbow(SF3),respectively.Patients were asked to press the seeds themselves for 2 min each time,four times a day,and an additional 5-15 min before the arteriovenous fistula puncture.Intensive pressing was offered duri ng the pun cture,15・20 presses for each time,and the plasters were cha nged every 2-3 d.The nu merical rati ng scale(NRS)was used to score the pain level one week before and after auricular point sticking.The NRS score was then compared and analyzed.Results:The intra-group comparison showed that the changes of NRS score in both groups were statistically sigrdficant after auricular point sticking(both P<0.05).After the treatment,there was no sigrdficant differenee in NRS score between the two groups(P>0.05).Conclusion:Auricular point sticking at Shenmen(TF4)or Elbow(SF3)can effectively relieve the pain of arteriovenous fistula puncture,and these two points have equivale nt an algesic effect.展开更多
文摘采用自制的单循环汽-液相平衡釜,测定了常压下含微量水的乙醇/正丁醇溶液二元体系的汽液平衡数据,测得的乙醇-水数据与文献中数据相比,两者吻合较好,验证了汽-液平衡釜的可靠性。正丁醇-水体系的实验结果发现:当水质量分数<0.02时,其平衡常数趋于5.0,同时其活度系数趋于3.0。进一步用Aspen Plus v8.4计算机软件,分别对Wilson、NRTL、UNIQUAC活度系数模型进行关联,回归出相应的二元交互作用参数。将关联结果与实验结果相比较,得到关联值与实验值的温度和汽相组成的平均绝对偏差,分别小于0.29 K和0.000 9,一致性良好。该结果为正丁醇-水混合物的分离提供了一定的基础数据,同时也为汽液平衡数据库补充了新的内容。
文摘Objective:To observe the clinical efficacy of auricular point sticking at different points to relieve the pain in arteriovenous fistula puncture.Methods:A total of 42 patients with arteriovenous fistula were randomized into a Shenmen(TF4)group and an Elbow(SF3)group by the random number table method,with 21 cases in each group.After enrolled into different groups,before the dialysis,patients were given auricular point sticking with Wang Bu Liu Xing(Semen Vaccariae)seeds at Shenmen(TF4)and Elbow(SF3),respectively.Patients were asked to press the seeds themselves for 2 min each time,four times a day,and an additional 5-15 min before the arteriovenous fistula puncture.Intensive pressing was offered duri ng the pun cture,15・20 presses for each time,and the plasters were cha nged every 2-3 d.The nu merical rati ng scale(NRS)was used to score the pain level one week before and after auricular point sticking.The NRS score was then compared and analyzed.Results:The intra-group comparison showed that the changes of NRS score in both groups were statistically sigrdficant after auricular point sticking(both P<0.05).After the treatment,there was no sigrdficant differenee in NRS score between the two groups(P>0.05).Conclusion:Auricular point sticking at Shenmen(TF4)or Elbow(SF3)can effectively relieve the pain of arteriovenous fistula puncture,and these two points have equivale nt an algesic effect.
