scholarly journals Dynamics in a phase model of half-center oscillator: Two neurons with excitatory coupling

Author(s):  
Alexander G. Korotkov ◽  
Tatiana A. Levanova ◽  
Michael A. Zaks ◽  
Andrey G. Maksimov ◽  
Grigory V. Osipov
Keyword(s):  
2018 ◽  
Vol 103 (1) ◽  
pp. 97-110 ◽  
Author(s):  
Crystal I. C. Farh ◽  
Gilad Chen
Keyword(s):  

1968 ◽  
Vol 78 (3, Pt.1) ◽  
pp. 359-368 ◽  
Author(s):  
William F. Prokasy ◽  
Martha A. Harsanyi

2005 ◽  
pp. 41-47 ◽  
Author(s):  
N. Yegorenkov ◽  
E. Kazakova ◽  
M. Starodubtseva

The phase model of market economy is suggested in the article. It is formalized in the cubical equation The equation takes into account the imperfections of competition and the fact that consumer goods are produced with the help of means of production. Transitions from the imperfect competition to the perfect one and visa versa yield qualitative status change of market economy.


1997 ◽  
Vol 35 (7) ◽  
pp. 139-145 ◽  
Author(s):  
Jiann-Yuan Ding ◽  
Shian-Chee Wu

The objective of this study is to quantify the effects of humic acid solution infiltration on the transport of organochlorine pesticides (OCPs) in soil columns using a three-phase transport model. From experimental results, it is found that the dissolved organic carbon enhances the transport of OCPs in the soil columns. In the OCPs-only column, the concentration profiles of OCPs can be simulated well using a two-phase transport model with numerical method or analytical solution. In the OCPs-DOC column, the migrations of aldrin, DDT and its daughter compounds are faster than those in the OCPs-only column. The simulation with the three-phase model is more accurate than that with the two-phase model. In addition, significant decrease of the fluid pore velocities of the OCPs-DOC column was found. When DOC leachate is applied for remediation of soil or groundwater pollution, the decrease of mean pore velocities will be a crucial affecting factor.


2012 ◽  
Vol 9 (1) ◽  
pp. 47-52
Author(s):  
R.Kh. Bolotnova ◽  
V.A. Buzina

The two-dimensional and two-phase model of the gas-liquid mixture is constructed. The validity of numerical model realization is justified by using a comparative analysis of test problems solution with one-dimensional calculations. The regularities of gas-saturated liquid outflow from axisymmetric vessels for different geometries are established.


2017 ◽  
Author(s):  
Heeseok Koo ◽  
Alexander Brown ◽  
Tyler Voskuilen ◽  
Flint Pierce

Author(s):  
Tomohiro YASUDA ◽  
Haruki TANAKA ◽  
Kohei SHIGETA ◽  
Junichi TANIGUCHI ◽  
Toshikazu KITANO

2021 ◽  
Vol 104 (1) ◽  
pp. 003685042110080
Author(s):  
Zheqin Yu ◽  
Jianping Tan ◽  
Shuai Wang

Shear stress is often present in the blood flow within blood-contacting devices, which is the leading cause of hemolysis. However, the simulation method for blood flow with shear stress is still not perfect, especially the multiphase flow model and experimental verification. In this regard, this study proposes an enhanced discrete phase model for multiphase flow simulation of blood flow with shear stress. This simulation is based on the discrete phase model (DPM). According to the multiphase flow characteristics of blood, a virtual mass force model and a pressure gradient influence model are added to the calculation of cell particle motion. In the experimental verification, nozzle models were designed to simulate the flow with shear stress, varying the degree of shear stress through different nozzle sizes. The microscopic flow was measured by the Particle Image Velocimetry (PIV) experimental method. The comparison of the turbulence models and the verification of the simulation accuracy were carried out based on the experimental results. The result demonstrates that the simulation effect of the SST k- ω model is better than other standard turbulence models. Accuracy analysis proves that the simulation results are accurate and can capture the movement of cell-level particles in the flow with shear stress. The results of the research are conducive to obtaining accurate and comprehensive analysis results in the equipment development phase.


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