查询词典 mathematical models

The main research and innovations are as follows:The diffracting patterns produced by the axicon in different light illuminating are analyzed, and the mathematical models of these patterns are theoretically established.

本文的主要研究工作及创新如下：研究了轴锥镜在不同光源下所产生光场的光学特性，建立了其理论数学模型。

In addition, mathematical models describing the changes of soil water contents with time within 30 cm, 60 cm, and 90 cm depth were also proposed, with which the temporal dynamics of soil water in the intercropped maize fields could be well predicted.

并建立了0～30、30～60、60～90及0～90cm土层土壤含水量随时间变化的数学模型，以此来预测试验条件下套作玉米带土壤水分随时间变化的动态。

But to discover the internal mechanism of chaos more profoundly, powerful rational mathematical models are necessary.

而要更为深刻地揭示混沌的内在机制，强有力的机理型数学模型是必不可少的。

The dielectric spectra of 22 samples are analysed and different mathematical models for predicating ethanol content are compared.

对配制的22个样品的介电谱进行了分析，对预测乙醇含量的不同数学模型做了比较。

There are several steering modes depending on their steering aims. The distinction of different steering mode is studied. 3. The theories of ship steering are recapitulated and the mathematical models of ship steering are deduced.

从控制技术的角度对船舶的操纵性和操纵过程进行了深入的分析和研究，对操纵系统的各个组成部分及它们在船舶操纵过程中的作用进行了探讨，为专家控制理论在船舶自动舵控制系统中的应用奠定了基础。

Complex process simulation requests not only upbuilding accurate mathematical models of every mechanical and controlling link, but also the flexible combination, easy manipulation,strong expansion of the simulation platform.

复杂过程的仿真要对过程的各个机械或控制环节建立精确的数学模型，还要求仿真平台灵活组合、操作简捷、扩展性好。

Based on the analysis of the feature for the fly-by-wire of aircraft, the mathematical models of the aircraft and the fly-by-wire are established; the probability model of contingency in the fly-by-wire and pilot tamper probability model are also established; by the application of Markov Chains the flight security model is upbuilt.

在分析飞机电传操纵系统特点的基础上，建立了飞行器和电传操纵系统的数学模型，建立了电传操纵系统故障及飞行员干预的概率模型。应用马尔可夫链建立了人-机系统飞行安全可靠性的数学模型。

This method can be used to design effective controllers for nonlinear systems with unknown mathematical models.

该方法能在非线性系统数学模型未知的情况下设计出有效的预测控制器。

The use of the phosphorus uptake and denltrification of PAOs under anoxic conditions for the realization of the simultaneous removal of nltrogen and phosphorus is a method with practical prospect for munic－ipal sewage treatment,and the establishment of the mathematical models of denitrlfication and dephosphorization by activated-sludge process benefits the popularization and application of this technofogy.

利用聚磷菌在缺氧条件下的吸磷和反硝化作用，实现氮、磷的同时去除，是具有实用前景的城市污水处理方法，而建立活性污泥法脱氮、除磷的数学模型则有利于该项技术的推广应用。

The mathematical models established was suitable with the practical procedure,so the steel angle CARD system will have the better practicability.

本文理论结合实践，建立了与实际生产情况相适应的数学模型，使角钢CARD系统具有更好的实用性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。