Characteristics and achievements of the Xin'an Medical School

The Xin'an Medical School began in the Jin Dynasty(266-420),developed in the Song Dynasty(960-1279),prospered in theMing and Qing dynasties(1368-1911),and has been passed down to the modern era.As a school of medicine with distinct regional characteristics,it has contributed to the development of traditional Chinese medicine and exerted farreaching influence,mainly in literature resources,medical theory,clinical application,and spiritual culture.This paper intends to discuss its academic characteristics and contribution to the development of traditional Chinese medicine,focusing on its formation,academic inheritance and innovation,overseas popularization,and integration of Confucianism,Taoism,and Buddhism in medicine.

Research on the modern clinical herbal administration rules in TCM treatment of ovarian cysts based on data mining

Objective:To explore the recent 20 years' herbal administration rules in TCM treatments of ovarian cysts (OCs) based on data mining.Methods:A prescription database for ovarian cysts was established by ACCESS 2007.Importing the database into SPSS17.0 and SPSS Modeler14.1.SPSS17.0 was used for descriptive and cluster analyses,while SPSS Modeler14.1 was used for association rules analysis.Results:After screening,363 prescriptions were obtained.The 10 most frequently-used Chinese herbal medicines are Zedoaria (Rhizoma Curcumae),Poria cocos (Poria),Common buried rubber (Rhizoma Sparganii),Red peony root (Radix Paeoniae Rubra),Peach seed (Semen Persicae),Danggui (Radix Angelicae Sinensis),Chinese angelica (Ramulus Cinnamomi),Liquorice root (Radix Glycyrrhizae),Pangolin scales (Squama Manis) and Moutan cortex (Cortex Moutan Radicis);the 5 most common syndromes of OCs are qi stagnation and blood stasis,phlegm and blood stasis,uterine blood stasis,stagnation of liver qi and retention of phlegm and dampness,nearly to 54.26%;In association rules analysis,5 sets of two-herbs association rules were obtained,17 sets of three-herbs association rules were obtained,22 sets of four-herbs association rules were obtained and 4 sets of five-herbs association rules were obtained;By clustering,13 sets of core couplet medicinals were obtained.Conclusion:Medicinal herbs for promoting blood circulation to remove blood stasis,resolve hard lumps,for strengthening the spleen,eliminating phlegm,and relieving liver qi stagnation were highly used in the treatment of OCs;Herbs attributed to the Liver Meridian,the Spleen Meridian and the Heart Meridian were highly used in OCs;The compatibility of herbs for promoting blood circulation to remove blood stasis and resolve hard lumps were highly used;Guizhi Fuling Wan (GFW) was often used and combined with other herbs in the treatment of OCs.

Dual-frequency Discontinuous Space Vector Pulse Width Modulation for Five-phase Voltage Source Inverters with Harmonic Injection

This paper proposes a dual-frequency discontinuous space vector pulse width modulation(DFDSVPWM)for a five-phase voltage source inverter with harmonic injection.In this modulation,for dual-frequency voltage output and reduction of switching losses,two different zero-vector-inserted modes are flexibly employed by alternatively using two types of zero vectors.Based on the comparison with continuous SVPWM,the idea and principle of the proposed DFDSVPWM are analyzed and an example of PWM signals for one bridge is also presented.For switching losses analysis,the impact factors and the calculation method are investigated and the corresponding implementation is given as well.The simulation and experimental results from a prototype verify the correctness and effectiveness of the proposed modulation and it has the advantages of outputting dual-frequency voltage and reducing switching losses.