This paper introduced and summarized the experience of the national-level old Chinese medicine expert Wu Zhengshi on syndrome differentiation and treatment of anaphylactoid purpura.Wu Zhengshi believes that blood-heat...This paper introduced and summarized the experience of the national-level old Chinese medicine expert Wu Zhengshi on syndrome differentiation and treatment of anaphylactoid purpura.Wu Zhengshi believes that blood-heat is the main cause of anaphylactoid purpura.When Qi is weak,the human body is attacked by external heat,resulting in the damage of the blood system,which lead to the anaphylactoid purpura.The blood is thermalized poison,which enters the vessel quickly and forces the blood to overflow the vessel,which develops for the purpura.According to the ancient book of Chinese medicine Jie Wei Yuan Sou(1550 C.E.),Wu Zhengshi put forward the treatment of relieving blood detoxification,heat and cooling blood,which achieved significant curative effects.展开更多
A novel three-level zero-voltage zero-current switching(ZVZCS)DC/DC converter is proposed in this paper.A tapped-inductor is used to replace the normal out-put filter inductor,so that the circulating current in the ze...A novel three-level zero-voltage zero-current switching(ZVZCS)DC/DC converter is proposed in this paper.A tapped-inductor is used to replace the normal out-put filter inductor,so that the circulating current in the zero-state can be reset to zero.The reset voltage and the re-set time can be set conveniently just by simply changing the winding ratio of the tapped inductor.The converter achieves a zero-current tuning off for inner switching,and a zero-voltage tuning on for outer switching.No circulating current exists in the zero state,so that the loss in the on-state is reduced,and the efficiency can be improved.The experimental results verify that the ZVZCS has low voltage stress,zero-voltage and zero-current switching.展开更多
针对无人机用锂离子串联电池组充电结束时各单元电池电压的一致性问题,对传统锂离子串联电池组充电均衡方法进行了研究,对有损均衡充电方案和无损均衡充电方案进行了归纳,分析了传统有损均衡充电方案和无损均衡充电方案的利弊,提出了一...针对无人机用锂离子串联电池组充电结束时各单元电池电压的一致性问题,对传统锂离子串联电池组充电均衡方法进行了研究,对有损均衡充电方案和无损均衡充电方案进行了归纳,分析了传统有损均衡充电方案和无损均衡充电方案的利弊,提出了一种基于DSP TMS320F28035以及光继电器开关实时选通浮地采样方案的均衡充电方法,利用实验样机对锂离子串联电池组进行了充电测试。研究结果表明:该均衡充电方案能实时监测充电电流和各单元电池电压,能够实现过压保护、过流保护、充电电流预置、放电存储模式、充电曲线预置等多项功能,充电均衡效果较好,充电结束时各单元电池间电压差不超过10 m V。展开更多
文摘This paper introduced and summarized the experience of the national-level old Chinese medicine expert Wu Zhengshi on syndrome differentiation and treatment of anaphylactoid purpura.Wu Zhengshi believes that blood-heat is the main cause of anaphylactoid purpura.When Qi is weak,the human body is attacked by external heat,resulting in the damage of the blood system,which lead to the anaphylactoid purpura.The blood is thermalized poison,which enters the vessel quickly and forces the blood to overflow the vessel,which develops for the purpura.According to the ancient book of Chinese medicine Jie Wei Yuan Sou(1550 C.E.),Wu Zhengshi put forward the treatment of relieving blood detoxification,heat and cooling blood,which achieved significant curative effects.
文摘A novel three-level zero-voltage zero-current switching(ZVZCS)DC/DC converter is proposed in this paper.A tapped-inductor is used to replace the normal out-put filter inductor,so that the circulating current in the zero-state can be reset to zero.The reset voltage and the re-set time can be set conveniently just by simply changing the winding ratio of the tapped inductor.The converter achieves a zero-current tuning off for inner switching,and a zero-voltage tuning on for outer switching.No circulating current exists in the zero state,so that the loss in the on-state is reduced,and the efficiency can be improved.The experimental results verify that the ZVZCS has low voltage stress,zero-voltage and zero-current switching.
文摘针对无人机用锂离子串联电池组充电结束时各单元电池电压的一致性问题,对传统锂离子串联电池组充电均衡方法进行了研究,对有损均衡充电方案和无损均衡充电方案进行了归纳,分析了传统有损均衡充电方案和无损均衡充电方案的利弊,提出了一种基于DSP TMS320F28035以及光继电器开关实时选通浮地采样方案的均衡充电方法,利用实验样机对锂离子串联电池组进行了充电测试。研究结果表明:该均衡充电方案能实时监测充电电流和各单元电池电压,能够实现过压保护、过流保护、充电电流预置、放电存储模式、充电曲线预置等多项功能,充电均衡效果较好,充电结束时各单元电池间电压差不超过10 m V。
