查询词典 numerical analysis

Exploring a new technology for snow-melting and deicing of airports tracks is the research background of this project. Through a great amount of experiments, numerical value calculation and theory analysis, a great deal of experiment data are attained, and the resonance law of carbon-fiber reinforced concrete under various power and ice-layer thickness conditions was found.A low-energy concuming, low cost and high thermal effect CFRC road surface concrete structurel material was developed. The snow-melting and deicing mechanism of CFRC was analyzed in the point of view of energy conservation, and the electric-thermal resonance law of road surface structural materials to CFRC concrete materials was set up.

本项目以新型机场跑道的冬季融雪化冰为研究背景，通过大量实验、数值计算与理论分析，获得了碳纤维增强机敏混凝土在不同功率、不同冰层厚度下的响应规律和大量试验数据，找到了一种能耗低、热效高、成本低的CFRC路面混凝土结构材料，并从能量守恒的角度分析了CFRC混凝土融雪化冰机理，建立了研究路面结构材料的导热性能对CRFC混凝土材料的电热响应规律。

Integrating full numerical simulation method of furnace with coal characteristic analysis, the paper makes a more complete prediction of furnace slagging.

本文采用炉内过程全模拟的方法，对炉内的空气动力场、烟气温度场和原生灰污层表面温度进行分析，并结合煤灰结渣特性判别准则，对炉内结渣状况作出较为完整的预报。

Analysis of ship parametric rolling in head sea;2. A numerical simulation method based on ITTC recommendation was used to investigate the occurrence and magnitude of parametric rolling in longitudinal regular waves.

基于ITTC推荐的参数横摇运动方程，采用估算方法确定方程中的阻尼系数和复原力矩系数，数值模拟出船舶在规则波中的参数横摇情况，将上述方法具体应用于一艘滚装船船模的参数横摇预报，并与试验数据进行对比，验证了所采用方法的有效性。

The paper gives a detailed introduction to the numerical value analysis for natural smoke evacuation under the condition of fire,and provide scientific basis for the application of natural smoke evacuation in metro section tunnel,the arrangement of ventilation shaft and the section tunnel structure choice.

成都地铁一号线南部浅埋区间隧道在国内首次采用自然通风模式，本文对其在火灾工况下自然排烟模式的数值模拟分析作了详细介绍，为自然排烟方式在地铁区间隧道的应用，以及通风竖井的布置和区间隧道结构形式的选择提供了科学的依据。

On the basis of the analysis,the self-focusing properties of the chirped Gaussian pulse in the chirped pulse amplification system were analyzed and discussed,and the numerical calculations were performed.

在此基础上，针对啁啾脉冲放大系统中的啁啾高斯脉冲，对其全光束自聚焦特性进行了计算模拟和分析讨论。

Computer programs have been developed for self-adaptive analysis, and representative numerical examples for various problems were analyzed.

本文编制了上述问题的自适应求解程序，并对各种问题中代表性的算例进行了分析。

Numerical simulation gave the changing rule of high, middle and low permeability cores of water saturation and pressure, analysis of its characteristics in the time of displacement

通过数值模拟给出了驱替各时段高中低渗透岩心中油水饱和度、压力的变化规律，分析了其变化特征。

Numerical simulation signal and vibration acceleration signal of a roughing mill main drive speed reduction unit have been decomposed by using empirical mode decomposition algorithm; each component has been carried on spectral analysis.

摘要运用经验模式分解算法对数值仿真信号及某轧钢厂粗轧机主传动减速机振动加速度信号进行了分解，从而得到若干个基本模式分量，对每个模式分量进行了频谱分析。

On the basis of theory analysis and numerical simulation, to combine project practice and primarily form a suit of suitable technology of control of roof and support of high cut.

在理论分析和数值模拟的基础上，结合工程实践，初步形成了一套适合大采高综采可行的顶板及支架控制技术，部分研究成果得到现场实践的证实。

Therefore, the choice of single mode in the examination and the frequency-thick band of mode has been given a particular illumination separately in the paper, following a relative numerical simulation. And a multi-cyclical sine signal modulated by Hanning window is used to simulate the excitation wave, and then an inspected ring of nodes is established to receive the echo, finally how the length of the circumferential cracks, the width of the axial cracks and the degree of the thickness-reduce effect the result is explained through the analysis of the result, further more, the reflection factor in the defect has been calculated.

因此，本文也就单一检测模态的选择以及模态频厚积段的选择分别予以了阐述，并有针对性的进行了数值计算：应用Hanning窗调制的多周期正弦波模拟单音频激励信号，并设置监测质点环接收回波，通过分析说明了管道的周向裂纹、轴向裂纹以及点蚀缺陷对缺陷回波所产生的影响，并进一步计算了缺陷处的反射系数。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。