Artificial synapses with full synapse-like functionalities are of crucial importance for the implementation of neuromorphic computing and bioinspired intelligent systems. In particular, the development of artificial s...Artificial synapses with full synapse-like functionalities are of crucial importance for the implementation of neuromorphic computing and bioinspired intelligent systems. In particular, the development of artificial synapses with the capability to emulate multiplexed neural transmission is highly desirable, but remains challenging. In this work, we proposed a hybrid ambipolar synaptic transistor that combines two-dimensional(2D) molybdenum disulfide(Mo S_(2)) sheet and crystalline one-dimensional(1D) poly(3-hexylthiophene-2,5-diyl) polymer nanowires(P3HT NWs) as dual excitatory channels. Essential synaptic functions, including excitatory postsynaptic current, paired-pulse facilitation, synaptic potentiation and depression, and dynamic filtering were emulated using the synaptic transistor. Benefitting from the dual excitatory channels of the synaptic transistor, the device achieved a fast switch between short-term and long-term memory by altering the charge carriers in the dual channels, i.e., electrons and holes. This emulated the multiplexed neural transmission of different excitatory neurotransmitters, e.g., dopamine and noradrenaline. The plasticity-switchable artificial synapse(PSAS) simulates the task-learning process of individuals under different motivations and the impact of success or failure on task learning and memory, which promises the potential to enable complex functionalities in future neuromorphic intelligent electronics.展开更多
通过分析国外机组资料和实际燃料切换运行曲线,逆推双燃料切换控制策略,并利用现有燃烧试验台,在保证燃烧室出口温度稳定波动的前提下,对规定时间内完成燃料快速切换的燃烧室内火焰稳定性加以验证。试验结果表明:某型机组试验可依据理...通过分析国外机组资料和实际燃料切换运行曲线,逆推双燃料切换控制策略,并利用现有燃烧试验台,在保证燃烧室出口温度稳定波动的前提下,对规定时间内完成燃料快速切换的燃烧室内火焰稳定性加以验证。试验结果表明:某型机组试验可依据理论切换时间30 s换算燃机最大负荷时燃料的变化量,保证机组在60 s内完成燃料的快速切换,在此切换过程中,燃烧室内火焰稳定,动态压力最大值为4.55 k Pa。由于燃烧试验台条件与整机试验环境存在较大的差异性,试验过程得出燃料变化量仅可作为参考,主要用于减少整机试验次数并规避试验风险,最终值仍应以整机试验结果为准。展开更多
软件定义广域网(Software Defined Wide Area Network,SD-WAN)作为被应用于广域网连接的新型网络技术,使用混合链路为广域网流量提供多条Overlay转发路径,配合智能应用选路等技术为网络流量提供最优路径动态选择的能力。提出了一种基于...软件定义广域网(Software Defined Wide Area Network,SD-WAN)作为被应用于广域网连接的新型网络技术,使用混合链路为广域网流量提供多条Overlay转发路径,配合智能应用选路等技术为网络流量提供最优路径动态选择的能力。提出了一种基于混合链路多Overlay隧道实现网络规模解耦下快速路由切换的新型设计,在广域网链路中断后提供路由收敛时间确定性上界保证,给出关键的数据结构及工作流程,对相关工程实施具备较好的指导作用。展开更多
基金supported by the National Science Fund for Distinguished Young Scholars of China (No. T2125005)the Tianjin Science Foundation for Distinguished Young Scholars (No. 19JCJQJC61000)the Shenzhen Science and Technology Project (No. JCYJ20210324121002008)。
文摘Artificial synapses with full synapse-like functionalities are of crucial importance for the implementation of neuromorphic computing and bioinspired intelligent systems. In particular, the development of artificial synapses with the capability to emulate multiplexed neural transmission is highly desirable, but remains challenging. In this work, we proposed a hybrid ambipolar synaptic transistor that combines two-dimensional(2D) molybdenum disulfide(Mo S_(2)) sheet and crystalline one-dimensional(1D) poly(3-hexylthiophene-2,5-diyl) polymer nanowires(P3HT NWs) as dual excitatory channels. Essential synaptic functions, including excitatory postsynaptic current, paired-pulse facilitation, synaptic potentiation and depression, and dynamic filtering were emulated using the synaptic transistor. Benefitting from the dual excitatory channels of the synaptic transistor, the device achieved a fast switch between short-term and long-term memory by altering the charge carriers in the dual channels, i.e., electrons and holes. This emulated the multiplexed neural transmission of different excitatory neurotransmitters, e.g., dopamine and noradrenaline. The plasticity-switchable artificial synapse(PSAS) simulates the task-learning process of individuals under different motivations and the impact of success or failure on task learning and memory, which promises the potential to enable complex functionalities in future neuromorphic intelligent electronics.
文摘通过分析国外机组资料和实际燃料切换运行曲线,逆推双燃料切换控制策略,并利用现有燃烧试验台,在保证燃烧室出口温度稳定波动的前提下,对规定时间内完成燃料快速切换的燃烧室内火焰稳定性加以验证。试验结果表明:某型机组试验可依据理论切换时间30 s换算燃机最大负荷时燃料的变化量,保证机组在60 s内完成燃料的快速切换,在此切换过程中,燃烧室内火焰稳定,动态压力最大值为4.55 k Pa。由于燃烧试验台条件与整机试验环境存在较大的差异性,试验过程得出燃料变化量仅可作为参考,主要用于减少整机试验次数并规避试验风险,最终值仍应以整机试验结果为准。
文摘软件定义广域网(Software Defined Wide Area Network,SD-WAN)作为被应用于广域网连接的新型网络技术,使用混合链路为广域网流量提供多条Overlay转发路径,配合智能应用选路等技术为网络流量提供最优路径动态选择的能力。提出了一种基于混合链路多Overlay隧道实现网络规模解耦下快速路由切换的新型设计,在广域网链路中断后提供路由收敛时间确定性上界保证,给出关键的数据结构及工作流程,对相关工程实施具备较好的指导作用。
