| 1. | This paper considers the nonlinear programming problem of interval parameters 摘要讨论了区间参数非线性规划问题。 |
| 2. | Computation of higher order singular points in nonlinear problems with single parameter 单参数非线性问题中高阶奇异点的计算 |
| 3. | Testing for varying dispersion in exponential families semi - parametric nonlinear models 指数族半参数非线性模型的变离差检验 |
| 4. | Diagnostic and influence analysis for exponential family semi - parametric nonlinear model 指数族半参数非线性模型的统计诊断和影响分析 |
| 5. | There are two nonlinear cases in power plants which are structure nonlinear and parameter nonlinear 火电厂中存在结构非线性和参数非线性两种情况。 |
| 6. | 2 . dynamic response of nonlinear structures with uncertain physical parameters is studied by subsection linearization method 用分段线性化方法计算了含随机参数非线性结构的动态响应。 |
| 7. | The work in this dissertation mainly consists of two parts . in the first part , the dynamic response of nonlinear structures with uncertain physical parameters is studied by means of subsection linearization method and equivalent random systems method , separately . in the second part , a method for analyzing the response of viscoelastic structures with uncertain physical parameters is proposed , with fem in space domain and discrete method in time domain 本文的研究工作主要由两个部分组成;第一部分是分别用分段线性化方法和等效随机系统方法对含随机参数非线性结构动态响应统计量的求解;第二部分是建立了用扩阶随机有限元方法求解含随机参数粘弹性问题的计算模型。 |
| 8. | This paper is chiefly to set up a platform of multi - parameter nonlinear study and multi - parameter estimate to reservoir by means of the technology of multi - attribute transformation and neutral network combined with multi - attribute analysis of seismic parameters , reservoir inversion and reconstruction of reservoir geophysical characteristics on the foundation of large numbers researches and data - drive law in prediction of reservoir so as to provide more accurate geology conclusion and exploration deployment scheme in practical application . basing on the mentioned objective above , this paper has analyzed characteristics of many methods of reservoir prediction in the petroleum prospecting and their shortcomings in the practical geology problem of resolution 本文主要目标就是在大量研究技术的基础上,以储层预测研究中的“数据驱动法”为数学物理上的理论基础,通过多属性变换和神经网络技术把地震参数的多属性分析技术、储层反演技术和储层地球物理特征重构的技术思想有机地结合在一起,建立起一套储层多参数非线性的预测研究和储层多参数估算技术平台,最终在实际应用中提供更加准确的地质和勘探部署。 |
| 9. | Usually we linearize them approximately in industrial process , but in some cases this ca n ' t satisfy the request of automatic control which makes us consider the nonlinear factors in the industrial process . in practical process of power plants the typical structure nonlinear case is dead - zone and the latter case is the nonlinear variance of objects ' parametres with the changes of working condition . the nonlinear research is parallel with the linearity and adaptive method can be used to deal with nonlinear cases . in this paper two adaptive control methods are used to solve the problems brought by the dead - zone of boiler negative pressure system and the nonlinear changes of the milling system ' s character parameters , which achieved good results 在生产中通常对非线性作近似线性化处理;但在某些情况下线性近似达不到自动控制的要求,必须对生产过程中的非线性情况进行考虑。在火电厂的实际生产中,典型的结构非线性之一是死区;参数非线性多发生在控制对象特性随工况变化而变化,表征其特征参数变化呈非线性。非线性控制的研究与线性控制的研究是并行的,针对非线性情况,可以采用自适应的控制方法。 |
| 10. | In regard to nonlinear stochastic optimization in which the restraint function was nonlinearly expressed with stochastic parameters , the advanced first - order second - moment method was employed to study the structural optimization numerical model based on component reliability or failure pattern reliability and the method to transform the problem of stochastic optimization to that of certain determinate optimization 摘要针对约束函数被随机参数非线性表达的随机非线性优化问题,采用改进均值一次二阶矩法,研究基于元件可靠度或各失效模式可靠度的结构优化的数学模型,以及将随机优化问题化为确定性优化问题的方法。 |