Objective:To observe the effects of the thumb-tack needling therapy on knee joint pain and joint function in the elderly patients with knee osteoarthritis(KOA)and compared with medication.Methods:A total of 60 patient...Objective:To observe the effects of the thumb-tack needling therapy on knee joint pain and joint function in the elderly patients with knee osteoarthritis(KOA)and compared with medication.Methods:A total of 60 patients were randomized into a thumb-tack needling group and a medication group,30 cases in each one.In the thumb-tack needling group,the therapy with the thumb-tack needle retaining and waiting for qi was adopted.The acupoints were Hèdǐng(EX-LE2鹤顶),Nèixīyǎn(内膝眼EX-LE4),Dúbí(犊鼻ST35),Xuèhái(血海SP10),Liángqiū(梁丘ST34)and Ashi points on the affected side.The needles were retained for 24 h.This therapy was given once every two days,3 times a week.The treatment for 2 weeks was as one course and consecutive 2 courses of treatment were required.In the medication group,diclofenac sodium sustained release tablets were taken orally,75 mg each time,once daily,consecutively for 4 weeks.Successively,the score of visual analogue scale(VAS)at the affected knee before treatment,after treatment and 3 months after treatment as well as Lequesne indicator before and after treatment were evaluated.The clinical therapeutic effect was observed in the patients of the two groups after treatment.Results:(1)After treatment,VAS scores were reduced as compared with those before treatment in the patients of the two groups(both P<0.05).After treatment,VAS score in the thumb-tack needling group was lower than that in the medication group(P<0.05).(2)After treatment,the scores of all the items of Lequesne indices reduced as compared with those before treatment in the patients of the both groups,indicating significance differences(all P<0.05).After treatment,compared with the medication group,the score of pain,morning stiffness and walking ability as well as the total score were all lower in the thumb-tack needling group,indicating significant differences(all P<0.05).(3)The curative and remarkably effective rate and the total effective rate were 66.7%and 93.3%in the thumb-tack needling group,higher than 56.7%an展开更多
A visual pH indicator through purple cabbage dye is selected to test the freshness of venison.Chitosan and cassava starch of an equal weight were used to prepare the film-forming matrix of the indicator.The crystalliz...A visual pH indicator through purple cabbage dye is selected to test the freshness of venison.Chitosan and cassava starch of an equal weight were used to prepare the film-forming matrix of the indicator.The crystallization of natural purple cabbage dyes with a weight ratio of 5%,10%,20%and 40%were added to the matrix,respectively.The pH color test showed that the natural purple cabbage lyophilized powder with a weight ratio of 40%was the best for the pH indicator,which was used to test the freshness of venison stored at 4℃.The total bacterial count,volatile basic nitrogen(TVB-N)and thiobarbituric acid(TBA)of venison were tested through an experiment.When stored at under 4℃,a significant color change of the indicator from pink to blue-green was shown when the total amount of volatile basic nitrogen(TVB-N)(22.78 mg/100 g)exceeded the critical value(20 mg/100 g).The test result showed that the indicator was very sensitive to pH value and it would help customers identify the freshness of venison.展开更多
This paper reports a new method of titration for very weak acids and bases using the appearance of incisions on oscillopolarogram to indicate the end-point.This method has the advantages of rapidity,simplicity,no indi...This paper reports a new method of titration for very weak acids and bases using the appearance of incisions on oscillopolarogram to indicate the end-point.This method has the advantages of rapidity,simplicity,no indicator needed as well as good precision.展开更多
【目的】中国传统园林空间复杂多变,传统的分析方法难以深入探索传统园林复杂的三维视觉空间特征。三维激光雷达(light detection and ranging,LiDAR)点云技术在传统园林空间研究方面具有精度高、信息全等优势,借助LiDAR点云技术深入探...【目的】中国传统园林空间复杂多变,传统的分析方法难以深入探索传统园林复杂的三维视觉空间特征。三维激光雷达(light detection and ranging,LiDAR)点云技术在传统园林空间研究方面具有精度高、信息全等优势,借助LiDAR点云技术深入探索中国传统园林视觉空间特征,可为现代人居环境空间营造提供借鉴与参考。【方法】基于LiDAR点云技术提出一套适用于中国传统园林视觉空间分析的方法,并以三维可视性、视野舒展度及景物视野占比3项指标量化描述视觉空间。【结果】以寄畅园为例,构建了寄畅园LiDAR点云体素模型,利用提出的方法对锦汇漪西侧滨水步道11个视点的视觉空间进行了量化分析,解析了寄畅园的视觉空间特征,并探究了该步道的空间感知序列。【结论】证实了利用LiDAR点云技术展开传统园林视觉空间研究的可行性与准确性,提出的方法可应用于其他传统园林视觉空间的分析研究中。展开更多
研究以计算化学的相关知识为基础,利用GAUSSIAN软件包,Multiwfn和VMD等专业软件把化学知识中抽象的概念进行可视化。通过“视觉传达”理念的运用,以达到增加学习兴趣、加深理解化学概念的目的。研究以芳香环定位效应、分子间(内)的氢键...研究以计算化学的相关知识为基础,利用GAUSSIAN软件包,Multiwfn和VMD等专业软件把化学知识中抽象的概念进行可视化。通过“视觉传达”理念的运用,以达到增加学习兴趣、加深理解化学概念的目的。研究以芳香环定位效应、分子间(内)的氢键及影响酸性的因素和π键特性为例,分别采用了双描述法/福井函数,约化密度梯度法/相互作用区域指示函数法(Reduced Density Gradient/Interaction Region Indicator,RDG/IRI)和电子定域性(Localized Orbital Locator,LOL)的图形分析。该方法所涉及的图形制作易于掌握,并在未来的教学实践和教材制作质量提供参考。展开更多
基金Supported by Fujian Natural Science Foundation Project:No.2017J01350。
文摘Objective:To observe the effects of the thumb-tack needling therapy on knee joint pain and joint function in the elderly patients with knee osteoarthritis(KOA)and compared with medication.Methods:A total of 60 patients were randomized into a thumb-tack needling group and a medication group,30 cases in each one.In the thumb-tack needling group,the therapy with the thumb-tack needle retaining and waiting for qi was adopted.The acupoints were Hèdǐng(EX-LE2鹤顶),Nèixīyǎn(内膝眼EX-LE4),Dúbí(犊鼻ST35),Xuèhái(血海SP10),Liángqiū(梁丘ST34)and Ashi points on the affected side.The needles were retained for 24 h.This therapy was given once every two days,3 times a week.The treatment for 2 weeks was as one course and consecutive 2 courses of treatment were required.In the medication group,diclofenac sodium sustained release tablets were taken orally,75 mg each time,once daily,consecutively for 4 weeks.Successively,the score of visual analogue scale(VAS)at the affected knee before treatment,after treatment and 3 months after treatment as well as Lequesne indicator before and after treatment were evaluated.The clinical therapeutic effect was observed in the patients of the two groups after treatment.Results:(1)After treatment,VAS scores were reduced as compared with those before treatment in the patients of the two groups(both P<0.05).After treatment,VAS score in the thumb-tack needling group was lower than that in the medication group(P<0.05).(2)After treatment,the scores of all the items of Lequesne indices reduced as compared with those before treatment in the patients of the both groups,indicating significance differences(all P<0.05).After treatment,compared with the medication group,the score of pain,morning stiffness and walking ability as well as the total score were all lower in the thumb-tack needling group,indicating significant differences(all P<0.05).(3)The curative and remarkably effective rate and the total effective rate were 66.7%and 93.3%in the thumb-tack needling group,higher than 56.7%an
基金Basic Scientific Research Project 2572020DF01 of Northeast Forestry UniversityFundamental Research Funds for Higher Education Institutions of Heilongjiang Province(135309513,135309109).
文摘A visual pH indicator through purple cabbage dye is selected to test the freshness of venison.Chitosan and cassava starch of an equal weight were used to prepare the film-forming matrix of the indicator.The crystallization of natural purple cabbage dyes with a weight ratio of 5%,10%,20%and 40%were added to the matrix,respectively.The pH color test showed that the natural purple cabbage lyophilized powder with a weight ratio of 40%was the best for the pH indicator,which was used to test the freshness of venison stored at 4℃.The total bacterial count,volatile basic nitrogen(TVB-N)and thiobarbituric acid(TBA)of venison were tested through an experiment.When stored at under 4℃,a significant color change of the indicator from pink to blue-green was shown when the total amount of volatile basic nitrogen(TVB-N)(22.78 mg/100 g)exceeded the critical value(20 mg/100 g).The test result showed that the indicator was very sensitive to pH value and it would help customers identify the freshness of venison.
文摘This paper reports a new method of titration for very weak acids and bases using the appearance of incisions on oscillopolarogram to indicate the end-point.This method has the advantages of rapidity,simplicity,no indicator needed as well as good precision.
文摘【目的】中国传统园林空间复杂多变,传统的分析方法难以深入探索传统园林复杂的三维视觉空间特征。三维激光雷达(light detection and ranging,LiDAR)点云技术在传统园林空间研究方面具有精度高、信息全等优势,借助LiDAR点云技术深入探索中国传统园林视觉空间特征,可为现代人居环境空间营造提供借鉴与参考。【方法】基于LiDAR点云技术提出一套适用于中国传统园林视觉空间分析的方法,并以三维可视性、视野舒展度及景物视野占比3项指标量化描述视觉空间。【结果】以寄畅园为例,构建了寄畅园LiDAR点云体素模型,利用提出的方法对锦汇漪西侧滨水步道11个视点的视觉空间进行了量化分析,解析了寄畅园的视觉空间特征,并探究了该步道的空间感知序列。【结论】证实了利用LiDAR点云技术展开传统园林视觉空间研究的可行性与准确性,提出的方法可应用于其他传统园林视觉空间的分析研究中。
文摘研究以计算化学的相关知识为基础,利用GAUSSIAN软件包,Multiwfn和VMD等专业软件把化学知识中抽象的概念进行可视化。通过“视觉传达”理念的运用,以达到增加学习兴趣、加深理解化学概念的目的。研究以芳香环定位效应、分子间(内)的氢键及影响酸性的因素和π键特性为例,分别采用了双描述法/福井函数,约化密度梯度法/相互作用区域指示函数法(Reduced Density Gradient/Interaction Region Indicator,RDG/IRI)和电子定域性(Localized Orbital Locator,LOL)的图形分析。该方法所涉及的图形制作易于掌握,并在未来的教学实践和教材制作质量提供参考。
