特性

Based on the two features of the Delaunay triangulation:maximum and minimum feature,empty circumcircle feature,in this article the procedure of building triangulation network needs three steps:creating boundary,building up the interior triangulation network,coping with the hole between the boundary and the interior triangulation network.

基于Delaunay三角网划分的两个特性：最大最小特性与空外接圆特性，论文构网过程分三步：生成边界，构造内三角网，对边界与内三角网之间的空洞进行处理。

Based on the analysis of the single-ring resonator, both the transfer functions of parallel-coupled structure and the ones of series-parallel structure in multiple-ring high order resonators are derived using the transfer matrix method. And the influences of the length of straight waveguide between rings, coupling coefficients between rings, coupling coefficient between straight waveguides and ring, the number of rings and the radii of rings on spectral response are also analyzed. Spectral response at drop channel with maximally flat response pass bands and sharper roll-off could be achieved by optimizing these parameters, so as to improve the performance of output spectral response.

在分析单环结构的基础上，利用传输矩阵法，推导了多环并联和多环串联两种耦合结构的高阶谐振器的传输函数公式，分别分析了并联环间直波导的长度、串联环间耦合系数、环与直波导间的耦合系数、环个数和环半径对相应结构输出特性的影响，通过优化这些参数实现下话路输出光谱具有通带的最大平坦性和过渡带良好的滚降特性，从而达到改善其输出光谱特性的目的。

It shows that slime of different concentration have difference in combustibility. Combustibility of slime which concentration is about 67% is better than others. Lots of datum of combustibility can be obtained using thermal analysis technology. It can be used for improving burning methods of slime and designing boiler.

结果表明，不同浓度的煤泥浆在燃烧特性上有差别，浓度为67%左右的煤泥浆的燃烧特性较好；采用热分析技术研究煤泥浆的燃烧特性得到的信息量大，可为煤泥浆的优化燃烧及锅炉的设计提供依据。

With the map for example, we can obtained following conclusions: the cam turning speed has the most direct influence to the dynamics of valve rain; the cam profilers has also a very important influence, the cam profiler as the kind of compound pendulum dose not suit to high speed engine's valve train and the polydyne cam's characteristics is very different from compound pendulum cam's.

论文还首次利用多质量模型的特点对气门落座速度、气门落座冲击力及落座反跳等气门落座特性参数随凸轮轴转速和结构参数的变化规律进行了研究，考察了不同凸轮型线对上述特性参数的影响。对气门落座特性参数进行这样详细和全面的研究，是本论文的开创性工作之一，在其他的文献中尚未见相同报导。

The study shows the BP neural network model of hydro-turbine for s pecial discharge and special torque can be used to describe its nonlinear charac teristic and ensure the continuity of derivative function of special discharge. The convergence for hammer calculating is improved.

水轮机单位流量和单位力矩特性的BP神经网络模型能真实地表达水轮机的非线性特性，且解决了插值法的导数不连续问题，从而改善了水击计算的收敛性，为用于工程计算和科学分析的水轮机特性表达开辟了新的途径。

The study shows the neural network model of hydro turbine can describe its nonlinear characteristic really and ensures the continuity of its derivative function, so improved the convergence for hammer calculating and is a better description of hydro turbine hill chart for science research and engineering design.

利用所述方法建立的水轮机特性神经网络模型能真实地表达水轮机的特性，并且解决了插值法的导数不连续问题，从而确保了水击计算的收敛性，为用于工程计算和科学分析的水轮机特性表达开辟了新的途径。并利用所建立的数学模型，开发了基于MATLAB的可视化软件仿真平台。

ABSTRACTIn this paper, the characteristics of velocity fields and concentration fields of jets at different velocity ratios in counterflow and coflow ambient are studied in detail. The preliminary results of velocity fields of jet in reciprocating ambient are also acquired.

本文对反向流动、同向流动环境中不同流速比下射流的流速场特性和浓度场特性进行了研究，并对往复流动环境中射流的流速场特性进行了初步探讨。

During the course of the experiments, by changing the waveshapes of damped oscillation and double exponential impulses in a wide range the relevant corona Q-V characteristics have been measured so as to examine the influence of waveshapes on them systematically.

其次，通过广泛地改变衰减振荡波和双指数雷电波的波形参数来测取相应的电晕伏库特性，系统研究波形参数变化对电晕伏库特性的影响，并就衰减振荡波和双指数雷电波这两种不同波形下电晕伏库特性之间的区别与联系进行了比较。

Damping force can be controlled in one of the two ways,open loop control or force feedback control.

通过特性试验，得到示功特性、速度特性，经转换得到阻尼器的阻尼力——电压模型和阻尼系数——电压模型。

The thermodynamic characteristics of air spring are introduced. Also analyzed are the vertical stiffness and dampness characteristics.

介绍了空气弹簧的热力学特性，对空气弹簧的垂直刚度特性和阻尼特性进行了分析。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。