Based on the ecological niche theory,the logistic curve and coevolution theory,The paper provides some solutions for the problems occurred during the development process of industrial clusters in China,to overcome the overlap of ecological niches of enter- prises within the clusters,and to lessen the conflicts between the economic development and the environment,etc.

The systems using three parameters Logistic model,in view of the value of data,the practice has proved that it can resolve the exposure problems in the current adaptive test.

The text analyzes the influencing factors of private forest’s cooperative management willingness, through constructing logistic regression model.

An adaptive control method for chaos oscillation in power system is put forward in this paper.

Because of power systems being more and more complicated, besides low frequency oscillation by minus damp, there is also chaos oscillation that can not be dispelled by PSS in power systems.

Through introducing action --angle variables (I, 8), under Xin transformation, use the Melnikov method to discuss the chaos oscillation problem of the power transmission lines system with two degrees of freedom.

Research on interaction between operation of high voltage circuit breaker and chaotic oscillation;

For researching chaotic oscillation in large scale interference power system and enhancing its security,a method to calculate Melnikov was propsed,which analyzed heteroclinic bifurcation of oscillation in nonlinera three-parameter two-generator power system and inferred the condition that Melnikov function have simple zero result.

In this paper, chaotic oscillation in power system under quasi-periodical load disturbance is analyzed, and the researched model is similar to a quasi-periodically forced Helmholtz oscillator.

Logistic method is a nonlinear regression analysis method, which is based on the Logistic model.