王琦教授应用枳术丸治疗功能型便秘的经验探讨

对于名方的应用,主要学习其制方思想,临证时既能执守,又能圆通,明其理而活其法。徐大椿在《兰台轨范·序》中言:"一病必有主方,一病必有主药。"王琦教授临床常以主病主方思想治疗疾病,针对性强,疗效显著。文章以枳术丸治疗功能性便秘为例,试论王琦教授主病主方学术思想和临床经验。

Design and thermal characteristics analysis of power flexible LED packaging

In order to meet the need of power LED flexible packaging,the flexible structure of LED is proposed based on surface mounted device(SMD) packaging.Each layer of the flexible structure is optimized,and the heat distribution is simulated using the finite element analysis(FEA) method.Thermal characteristics of several flexible packaging structures are compared with those of the traditional LED structure.The stress developed in LED chips as a result of bending is analyzed.The results show that the flexible packaging structure with metal copper foil substrate has good thermal stability.Cu/ultra-thin glass composite substrate instead of Cu substrate makes only a little difference in heat disputation but effectively reduces the stress by up to 2.5 times.Power LED flexible packaging presents a great application potential because of its flexibility and thermal stability compared with the traditional LED packaging.