[Objective] To design a safety device set for fishing vessel net hauler, in order to reduce the severe potential safety hazards in offshore operation. [Method] In view of the operation and structure of net hauler on t...[Objective] To design a safety device set for fishing vessel net hauler, in order to reduce the severe potential safety hazards in offshore operation. [Method] In view of the operation and structure of net hauler on the fishing trawler, this paper investigated the existing safety protection devices and designed a new set of purely mechanical structure without changing the original structures of the vessel significantly. [Result] Using the easily-adjustable functions of the main shaft of CNC lathe, and simulating the operation performance of different hauling line speeds and testing the safety device, the results showed that the new device could protect the crew from safety accidents caused by net hauler. [Conclusion] The result provides references for the design and application of mechanical protection devices for net haulers on other fishing trawlers.展开更多
脑小血管病(cerebral small vessel disease,CSVD)是指各种病因影响脑内小动脉、微动脉、毛细血管、微静脉和小静脉所致的一系列临床、影像和病理综合征。CSVD是脑卒中、痴呆和死亡的重要危险因素,严重危害老年人的生命健康和生活质量。...脑小血管病(cerebral small vessel disease,CSVD)是指各种病因影响脑内小动脉、微动脉、毛细血管、微静脉和小静脉所致的一系列临床、影像和病理综合征。CSVD是脑卒中、痴呆和死亡的重要危险因素,严重危害老年人的生命健康和生活质量。CSVD起病隐匿,缺乏早期的诊断方法及干预措施,明确CSVD目前的研究现状和未来的发展方向,可以为基础和临床研究提供新的思路。本文就CSVD的诊疗现状和研究新进展进行综述。展开更多
基金Supported by Zhoushan Scientific and Technological Plan Program "Exploration of Net Hauler Safety Device for Fishing Trawler"(2016C32021)
文摘[Objective] To design a safety device set for fishing vessel net hauler, in order to reduce the severe potential safety hazards in offshore operation. [Method] In view of the operation and structure of net hauler on the fishing trawler, this paper investigated the existing safety protection devices and designed a new set of purely mechanical structure without changing the original structures of the vessel significantly. [Result] Using the easily-adjustable functions of the main shaft of CNC lathe, and simulating the operation performance of different hauling line speeds and testing the safety device, the results showed that the new device could protect the crew from safety accidents caused by net hauler. [Conclusion] The result provides references for the design and application of mechanical protection devices for net haulers on other fishing trawlers.
文摘脑小血管病(cerebral small vessel disease,CSVD)是指各种病因影响脑内小动脉、微动脉、毛细血管、微静脉和小静脉所致的一系列临床、影像和病理综合征。CSVD是脑卒中、痴呆和死亡的重要危险因素,严重危害老年人的生命健康和生活质量。CSVD起病隐匿,缺乏早期的诊断方法及干预措施,明确CSVD目前的研究现状和未来的发展方向,可以为基础和临床研究提供新的思路。本文就CSVD的诊疗现状和研究新进展进行综述。