查询词典 distributed parameter

Parameters estimation of the distributed parameter system and digital image restoration are representative Mathematical and Physics inverse problem, and they are explored in the first two chapters of this paper.

分布参数系统的参数辨识和数字图像恢复是典型的数学物理反问题，本文前两章分别对这两方面进行了探索研究。

Based on distributed parameter model of power transmission line, a new two-terminal fault location algorithm in which asynchronous phasors are used is proposed.

基于线路分布参数模型，提出一种双端非同步故障测距算法。

Fifthly, we research the problem about the stochastic fluctuate of the contents of organic compounds and microelements in the land under the assumption continuous-time model. The first, a dynamic model about fertility of plowland is presented using stochastic diffusion processes and distributed parameter system.

在分析了农业耕地中有机物含量及微量元素含量的随机变化过程的基础上，利用扩散随机过程理论及分布参数系统建立分析模型描述耕地肥力的分布状况；研究了以维护耕地最优质量状态作为目标值的最优控制问题。

Carleman不等式及其在最优控制问题中的应用.Optimal control theory of distributed parameter systems mainly includes: Pontryagin's maximum principle; controllability; Hamilton-Jacobi equation (i.e., dynamic programming equation); time optimal control, etc.In this dissertation, we establish Pontryagin's maximum principle of optimal control problems governed by some nonlinear differential equations (parabolic differential equations, elliptic differential equations and 3-dimensional Navier-Stokes equations), which in particular could have local solut...

在这篇博士论文中，我们建立了非线性微分方程(包括抛物型微分方程，椭圆型微分方程以及3维Navier-Stokes方程)最优控制问题的庞特里雅金最大值原理，特别地，这些方程可能只有局部解或存在多解(我们称这样的系统为非适定系统，相应的最优控制问题为非适定最优控制问题)，以及适定的非线性发展方程最优控制问题的庞特里雅金最大值原理；我们研究了phase-field系统的时间最优控制问题以及Boussinesq系统的局部内可控性。

Distributed parameter model of interconnects in high-speed circuits is introduced, together with its time domain solution. Based on this model, some signal integrity problems are discussed, and simulation results of impedance match is presented.

引入了高速电路互联线的分布参数模型，介绍了模型的时域求解算法，并基于该模型分析了互连线的信号完整性问题，给出了阻抗匹配问题的仿真结果。

In the first chapter we retrospect the development of the distributed parameter system, then introduce Arctic sea ice and the achievements of some researchers in this specifical domain.

本文第一章回顾了分布参数控制理论的发展情况，同时简单的介绍了北极海冰和一些在海冰研究领域内的国内外学者所取得的成果。

A distributed parameter model was proposed to simulate the airside heat transfer of the finned-tube evaporators in the frosting process.

建立了结霜条件下翅片管蒸发器空气侧流动和换热的分布参数仿真模型，模型考虑了蒸发器结构、霜层厚度以及湿空气状态等参数在气流方向的沿程变化。

A distributed parameter model is proposed to simulate the airside heat transfer of the finned-tube evaporators in the frosting process. The variation of the evaporator structure, the frost thickness and humid air conditions along the flow path are taken into consideration.

建立了结霜条件下翅片管蒸发器空气侧流动和换热的分布参数仿真模型，模型考虑了蒸发器结构、霜层厚度以及湿空气状态等参数在气流方向的沿程变化。

In consideration of those mentioned above, a distributed-parameter dynamic mathematical model of the utility boiler furnace and working fluid in the tube is developed in this paper.

鉴于上述情况，本文建立了一套用于电站锅炉炉膛和管内工质的分布参数动态数学模型，模型能够深入、全面地从机理上反映模拟对象的动态特性。

Research indicates that distributed parameter on taper winding led to voltage oscillation during rising edge,which may create excessive voltage gradient in head of winding,the validity of MTL model is also proved.

研究表明：分布参数会引起电压谐振，冲击电压的上升沿在绕组首端产生匝间过电压；多导体传输线模型可对锥形变压器绕组的电压分布进行有效计算。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。