历代中药水飞制法的探讨

水飞制法是中药炮制常用方法之一,始载于《雷公炮炙论》,已有1400多年历史。水飞制法是取按照规定处理后的药材,加适量的水共研细,再加多量的水搅拌,倾出混悬液下沉部分再按上法反复操作数次,除去杂质,合并混悬液静置后,分取沉淀,干燥,研散。水飞制法主要适用于矿物类药物。1 历代水飞制法的品种 石钟乳、赤石脂、雄黄、石膏、磁石、伏龙肝、代赭石、白垩《雷公炮炙论》。铅丹《仙授理伤续断秘方》。朱砂、紫石英、白石英、珍珠、硫黄、石决明、阳起石《太平圣惠方》。生铁、铁粉、石蟹、石燕《重修政和经史证类备用本草》。自然铜《重刊本草衍义》。寒水石、太阳玄精石《普济本事方》。龙齿、龙骨《太平惠民和剂局方》。牡蛎粉、胆矾《类编朱氏集验医方》。青黛《疮疡经验全书》。铜青《普济方》。黄石脂、方解石、长石、理石、砺石、桃花石、黑羊石、白羊石、蛇石、金星石《本草品汇精要》。石绿、砒《医药纲目》。玛瑙《审视瑶函》。

珍珠炮制工艺研究概述

本文针对中药珍珠炮制工艺的历史沿革、炮制目的,通过对历代文献分析、研究、归纳,初步筛选出豆腐制后再水飞为珍珠最佳炮制工艺。

A Potential Flow Based Flight Simulator for an Underwater Glider

Underwater gliders are recent innovative types of autonomous underwater vehicles （AUVs） used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface. During the change of altitude, they use the hydrodynamic forces developed by their wings to move forward. Their flights are controlled by changing the position of their centers of gravity and their buoyancy to adjust their trim and heel angles. For better flight control, the understanding of the hydrodynamic behavior and the flight mechanics of the underwater glider is necessary. A 6-DOF motion simulator is coupled with an unsteady potential flow model for this purpose. In some specific cases, the numerical study demonstrates that an inappropriate stabilizer dimension can cause counter-steering behavior. The simulator can be used to improve the automatic flight control. It can also be used for the hydrodynamic design optimization of the devices.