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自谐振ZVS在无人机无线充电系统中的应用 被引量:4
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作者 张迪 张世杰 +4 位作者 王镜允 孙学良 曹春阳 樊京 李定珍 《仪表技术与传感器》 CSCD 北大核心 2019年第5期96-99,126,共5页
文中针对无线充电技术中如何减小系统尺寸和功耗展开研究,提出一种新型的自谐振ZVS拓扑结构,将其应用于多旋翼无人机无线充电系统中。文中详细论述了ZVS电路在系统中工作的自谐振原理,建立了电路网络传输模型,采用Simplorer11.0对其仿真... 文中针对无线充电技术中如何减小系统尺寸和功耗展开研究,提出一种新型的自谐振ZVS拓扑结构,将其应用于多旋翼无人机无线充电系统中。文中详细论述了ZVS电路在系统中工作的自谐振原理,建立了电路网络传输模型,采用Simplorer11.0对其仿真,并进行了系统实验研究,验证了系统设计的可行性。对电路空载损耗做了测试研究,结果表明该自谐振ZVS电路不仅传输功率大、自身损耗低,而且工作频率相对较高,拓扑结构简单,可以很好地减小无人机无线接收端的体积和质量,满足无人机自身小而轻的要求。 展开更多
关键词 自谐振 ZVS 无线充电系统 多旋翼无人机 电路损耗
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Application of PBL Teaching Mode Based on Boppps in Clinical Teaching of Nursing Students in Pancreaticobiliary Surgery
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作者 DINGRumei fanjing +1 位作者 JINYan GUONa 《外文科技期刊数据库(文摘版)医药卫生》 2022年第2期025-028,共4页
Objective: to explore the application and effect of BOPPPS-based PBL in the clinical teaching of pancreatic biliary surgery. Methods: in order to facilitate the study and make the corresponding research results, 120 n... Objective: to explore the application and effect of BOPPPS-based PBL in the clinical teaching of pancreatic biliary surgery. Methods: in order to facilitate the study and make the corresponding research results, 120 nursing nursing students in a third-grade hospital in Shanghai were selected as the research project, and 120 nursing students were divided into two groups. In the nursing clinical belt teaching, 60 students in the control group gave the traditional teaching, and 60 students in the experimental group adopted the BOPPPS-based PBL teaching model. After the teaching, the hospital will give the medical students to participate in the internship, and compare the scores and scores of the two Self- -Rating Scale of Self-Directed Learning (SRSSDL-CV).Results: SRSSDL-CV score [226.71 ± 21.33] was higher than control [204.32 ± 22.64] (P <0.05);92.19 ± 3.44], operational skills [94.45 ± 2.83], compared to 87.63 ± 5.24,91.38 ± 3.12], statistically significant (P <0.05).Conclusion: PBL teaching based on BOPPPS helps to improve the self-learning ability and improve the clinical teaching quality of pancreatic surgery. 展开更多
关键词 BOPPPS PBL pancreatic and biliary surgery clinical teaching
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