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In order to solve the parameters' adjusting difficulty of the continuous Duffing chaotic system, a method of using single-chip microcomputer to realize Duffing chaotic system is proposed in this paper. It is proven that the discrete Duffing chaotic system as well as the continuous system has the ability of signal detection. The simulation results based on singlechip microcomputer under MATLAB environment...
Because of excellent ability to detect weak signals, Duffing chaotic system has caused wide research and public concern. At present, it is a regular practice to drive Duffing system by continuous function, but those sine functions will be interrupted and the state of change will be observed in this paper. The simulation results show that the duty ratio of intermittent sine driving function is a very...
In order to understand the pressure effect on water mass fraction in the cathode for the PEM (Proton Exchange Membrane) fuel cell, a model was set up by three conservation equations, and it was considered the Gravity in source item. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. It is simulation of species mass fraction in this paper. The...
In order to understand the pressure effect on water mass fraction in the cathode for the PEM(Proton Exchange Membrane) fuel cell, a model was set up by three conservation equations, and it was considered the Gravity in source item. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. It is simulation of species mass fraction in this paper. The...
The performance of a PEM(Proton Exchange Membrane) fuel cell can be expressed by the voltage-Current density(V-I) characteristics. In this study, a mathematical modeling for computing the mass fraction characteristics of PEM fuel cell has been improved. It is simulation of species mass fraction in this paper. Model was set up by three conservation equations, and it was considered the Gravity in source...
In order to understand the humidification temperature effect on oxygen mass fraction in the cathode for the PEM(Proton Exchange Membrane) fuel cell, a model was set up by three conservation equations, and it was considered the Gravity in source item. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. It is simulation of species mass fraction...
It is helpful to highlight the performance of PEM(Proton Exchange Membrane) fuel cell that understanding of mass fraction inside PEM fuel cell. It is simulation of species mass fraction in this paper. Model was set up by three conservation equations, and it was considered the Gravity in source item. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels...
In PEM (Proton Exchange Membrane) Fuel Cell, a two-phase flow, multi-component model has been optimized. The modeling domain consists of the membrane, two catalyst layers, two diffusion layers, and two channels. Both liquid and gas phases are considered in the entire cathode and anode, including the channel, the diffusion layer and the catalyst layer. The Gravity effect on liquid water was considered...
In this paper, saddle point equilibrium problem of the bilinear quadratic performance index dynamic game will be discussed from the basic saddle point equilibrium strategy of the game theory, by introducing a proper transformation, transforming the bilinear systems of nonlinear two points boundary value problem into a "separation" form of the linear two-point boundary, and then finding the...
The paper discusses differential games of quadratic performance indices in continuous time bilinear systems in the finite time. Based on the optimal control method, the problem of saddle-point equilibrium strategies in differential games of continuous time bilinear systems is transformed into a sequence of linear differential equations and a Riccati matrix equation. And a practical, effective, uniformly...
A method in this paper, which the theory of planar analytic geometry is used to model and simulate in vehicle transmission shaft, is firstly presented. This method is clear, uncomplicated and lucid, which offers a more convenient way to analyze vehicle transmission shaft kinematics characteristic so that it is suitable for project designs. The Matlab software is used to make the simulation in vehicle...
Online community (OC, or termed as "virtual community") provides a social sphere for people to share their information, knowledge and other resources. It is becoming an unprecedentedly ubiquitous online phenomenon. The contents which are jointly provided by participants are considered as public goods (Kollock, 1999). For public goods provided by collective action, there have been many papers...
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