Decrease and increase of spikes in auditory neuron with time-varying synaptic inputs

2019 ◽  
Vol 33 (20) ◽  
pp. 1950216
Author(s):  
Fuqiang Wu ◽  
Kuihua Ma

Precise timing and brief inhibitory synapse associated with excitation, in auditory brainstem circuit, can affect the generation of spikes. Using a lot of principles of synaptic model verified in the experiments, we develop a time varying synaptic model into the auditory neuronal model to explore its dynamic behavior. The controllable relative time between excitation and inhibition can achieve the increase or decrease of spikes in auditory neuronal model, which is consistent with the findings. This phenomenon can take place after a lasting hyperpolarization rebound by observing the phase profiles. Our results provide insights into the further investigation in neuronal networks with time-varying and plastic synapses.

Author(s):  
Luyi Han ◽  
◽  
Riliang Liu

A propeller blade, as a typical example of low-rigidity components, is prone to chatter and deformation in machining process, especially when large material removal is applied. In order to foresee the problems and then optimize the process, identification of the dynamic behavior of the workpiece is of great importance. This paper studies the dynamic characteristics of the workpiece in the machining process from plate to propeller blade using Finite Element Method. The results show that the time-varying natural frequencies of the workpiece decrease gradually at the beginning steps of the process due to the influence of material removal, and increases afterwards influenced by the geometry of the blade.


2015 ◽  
Vol 168 ◽  
pp. 846-852 ◽  
Author(s):  
Shujun Long ◽  
Hongheng Li ◽  
Yongxin Zhang

1993 ◽  
Vol 36 (3) ◽  
pp. 175-181
Author(s):  
Yoshiro Ehara ◽  
Ginichiro Ichikawa ◽  
Hiroshi Yoshikawa

2004 ◽  
Author(s):  
A. Khazaei ◽  
M. Rastgaar Aagaah ◽  
M. Mahinfalah ◽  
N. Mahmoudian ◽  
G. Nakhaie Jazar

This paper presents the stability theory and dynamic behavior of a micro-mechanical parametric-effect resonator. The device is a MEMS time-varying capacitor. The nonlinear dynamics of the MEMS are investigated analytically, and numerically. Applying perturbation methods, and deriving an analytical equation to describe the frequency response of the system enables the designer to study the effect of changes in the system parameters that can be used for design and optimization of the system.


2019 ◽  
Vol 33 (3) ◽  
pp. 1019-1032 ◽  
Author(s):  
Xiuzhi He ◽  
Xiaoqin Zhou ◽  
Zhen Xue ◽  
Yixuan Hou ◽  
Qiang Liu ◽  
...  

2005 ◽  
Vol 206 (1-2) ◽  
pp. 185-199 ◽  
Author(s):  
Robert-Benjamin Illing ◽  
K. Suzanne Kraus ◽  
Markus A. Meidinger

Sign in / Sign up

Export Citation Format

Share Document