After researching the discrete standard quantity system dynamic error separation technique,two error correction methods based on genetic algorithm and neural network mixed modeling technique are established.
Then, as an example, simulates the developing condition of Nanjing’s commercial tenement market from 1996 to 2010 with Vensim PLE plus 32 (4.2a) of Ventana System Inc., which is a software for system dynamics simulation.
然后以南京市为例,并使用Ventana System 公司的 Vensim PLE plus 32 系统动态模拟软件(4.2a版),对南京市1996年到2010年15年间的住宅房地产市场发展进行实证模拟,分析主要指标的模拟结果,判断市场景气状况,进行市场监测预警;
Population system dynamics of Aleurooybotus indicus David et Subramanias were analysed with fuzzy cluster theory. It indicated that the populalion system could be divided into six subsystems:SSI ,SS2,SS3 SS4 SS5 and SS6 if the degree of confidence was 0. 9640(?) (?)
本文应用模糊聚类分析方法对稻粉虱Aleurooybotus indicus David of Subramanias种群系统动态进行模糊聚类分析,模糊聚类分析结果表明,在置信水平0.9640≤λi<0.9880的情况下,该种群系统分为6个亚系统:SS1、SS2、SS3、SS4、SS5和SS6。
According to the method heart was taken as an approximate linear dynamic system and heart rate as the output of the system, so that the parameters of the model of the dynamic system might indicate nerve regulability.
This paper analyses the dynamic processes of the A/D conversion system. It points out what makes the errors of the dynamic system and how to overcome it. Using the experimental results, analysis the A/D chips conversion process in detail.
There is a branch in economic domain to be called Agent-Based Computational Economics, ACE, it regards the economical system as the participation between the individual economic agent, thus can study the systematic dynamic with the numerical simulation method.
Based on the analytical study of the strong and weak points of both maximum and minimum resistance line design methods,a midway resistance line design method is developed and a systematic dynamic analysis method is put forward from the viewpoint of differential and based on the combination of the advantages of the three methods.
With the Petri net model as a base,basing on the systematic dynamic reliability target of Monte Carlo simulative solution and by means of simulation the key factors that affect the reliability of system were analyzed.
Based on the analysis of mechanism of interactions between regional land use structure change and sustainable land use during the process of rapid urbanization,as the case of Jiangsu Province,the trend of diversification and centralization of land use structure is analyzed. Furthermore,trend of land use structure change in year 2005,2010 and 2015 and its effects of rapid urbanization on sustainable land use are predicted by building the Grey Systematic Dynamic Model.
In the modeling process, the system dynamic model is generated by assembling the model units which are kinematical determinate in planar mechanisms rather than the body/joint units in multi-body system.
Half switching period delayed sampling and control timing strategy is used to improve the system dynamic response.
Then the thin-walled structure natural frequencies can be found by equating the determinant of the system dynamic stiffness matrix to zero.
The investigation was conducted via simulation test in the power system dynamic simulation laboratory of Shandong University.
A new and simple method is presented to directly decouple the Lyapunov matrix and the system dynamic matrix.
The problem of equilibrium of non-linear dynamic system for microorganism in continuous culture is considered in this paper.
A class of Beddington-DeAngelis' type predator-prey dynamic system with prey and predator both having linear density restriction is considered.
Modeling of the linear dynamic system is considered.
Decomposition of a system, i.e., representation of a system as a set of subsystems of lesser dimension, for a multivariate dynamic system described by a nonlinear Ito stochastic differential equation is investigated.
A question is examined as to estimates of the norms of perturbations of a linear stable dynamic system, under which the perturbed system remains stable in a situation where a perturbation has a fixed structure.
A systematic dynamic reliability model is given for structures in service under the scheduled inspection and repair.
The fourth level - dynamic compensation - requires feedback from the actuators and compensates for errors in the target vectors provided by the kinematic level and caused by systematic dynamic uncertainties or environmental disturbances.
Fourth there are gestures, which are systematic dynamic patterns of object-based motion.