Objective： To evaluate the efficiency of an implanted chip system for the control of heart rate （HR）. Methods： The HR was recorded in six conscious Sprague-Dawley （SD） rats. An implanted chip system was designed...Objective： To evaluate the efficiency of an implanted chip system for the control of heart rate （HR）. Methods： The HR was recorded in six conscious Sprague-Dawley （SD） rats. An implanted chip system was designed to regulate the HR by stimulating the right cervical vagus nerve according to the feedback of real time HR. Each rat was subjected to 30-min regulation and 30-min recovery. The change of HR during the regulation period was compared with the control. The ECG was recorded during the experiment for 24 h. Results： The ECG signals were successfully recorded during the experiment. The HR was significantly decreased during the period of regulation compared with control （-79.3 ± 34.5, P 〈 0.01, n = 6） and then recovered to normal after regulation. Conclusion： The described implanted chip system can regulate the HR to a designated set point.展开更多
传统指令集架构(Instruction Set Architecturem,ISA)因为高昂的版权、指令复杂性和兼容性的问题,越来越限制了计算机技术广泛应用。而精简指令集计算-V(Reduced Instruction Set Computer-Five,RISC-V)是一种全新的免费开源指令集,因...传统指令集架构(Instruction Set Architecturem,ISA)因为高昂的版权、指令复杂性和兼容性的问题,越来越限制了计算机技术广泛应用。而精简指令集计算-V(Reduced Instruction Set Computer-Five,RISC-V)是一种全新的免费开源指令集,因其开放性、灵活性和高效性受到广泛关注。通过对比分析,我们揭示了RISC-V与传统指令集的区别,系统回顾了RISC-V指令集的发展历程及主要特性,重点探讨了其在不同领域中的强大潜力与广发的应用价值。展开更多
基金supported by grant from National Nature Science Found (30670767)
文摘Objective： To evaluate the efficiency of an implanted chip system for the control of heart rate （HR）. Methods： The HR was recorded in six conscious Sprague-Dawley （SD） rats. An implanted chip system was designed to regulate the HR by stimulating the right cervical vagus nerve according to the feedback of real time HR. Each rat was subjected to 30-min regulation and 30-min recovery. The change of HR during the regulation period was compared with the control. The ECG was recorded during the experiment for 24 h. Results： The ECG signals were successfully recorded during the experiment. The HR was significantly decreased during the period of regulation compared with control （-79.3 ± 34.5, P 〈 0.01, n = 6） and then recovered to normal after regulation. Conclusion： The described implanted chip system can regulate the HR to a designated set point.
文摘传统指令集架构(Instruction Set Architecturem,ISA)因为高昂的版权、指令复杂性和兼容性的问题,越来越限制了计算机技术广泛应用。而精简指令集计算-V(Reduced Instruction Set Computer-Five,RISC-V)是一种全新的免费开源指令集,因其开放性、灵活性和高效性受到广泛关注。通过对比分析,我们揭示了RISC-V与传统指令集的区别,系统回顾了RISC-V指令集的发展历程及主要特性,重点探讨了其在不同领域中的强大潜力与广发的应用价值。
