数值技术

With rapid development of information technology, a kind of infinite sequence data is generated in many areas.

中文摘要随着信息技术的飞速发展，许多领域产生的数据是在时间维度上严格有序、在数值上不断变化的无限的数据序列，由此产生数据流模型。

Boundary element method is a kind of numerical algorithm on boundary; it is based on the boundary integral equation and employs the element discretization technique.

边界元属于边界型的数值方法，它是以边界积分方程为数学基础，同时采用了有限元法的单元离散技术。

With the aid of CFDnumerical simulation technology,the total pressure loss of the intercooler entire flow path for marine gas turbine was analyzed.

借助计算流体动力学数值模拟技术，实现了船用燃气轮机间冷器整个流路的总压损失分析。

The mechanism to form HD+2,H+3 and D+3 from RF ion source is analyzed by experimental study of the interaction of these ions with solid foils. The structural pattern of HD+2 and the mean internuclear separations are determined using the Coulomb explosion technique.

从分子离子H+3及其氘化同位素分子离子D+3和HD+2与超薄固体膜相互作用发生库仑爆炸为基础，分析讨论了H+3，D+3和HD+2三种分子离子的形成机理，根据产物能谱分布，利用库仑爆炸技术确定了同位素分子离子HD+2的结构形式，给出具体核间距数值。

Theoretical study on the nuclear fusion mechanism of deuterium clusters aroused by Coulomb explosion s with femtosecond intense laser;2. The structural pattern of HD_2~+ and the mean internuclear separations are determined using the Coulomb explosion technique.

从分子离子H3+及其氘化同位素分子离子D3+和HD2+与超薄固体膜相互作用发生库仑爆炸为基础，分析讨论了H3+，D3+和HD2+三种分子离子的形成机理，根据产物能谱分布，利用库仑爆炸技术确定了同位素分子离子HD2+的结构形式，给出具体核间距数值。

The invention refers to a method to correct universal frequency of electric communication technique, its character: make signal index quantization on the complex number of cross product, to directly reflect the quantized numerical value of tangent value and the located quadrant of imaginary and real parts, use inverse tangent ROM table to discriminate the processed result, then make loop filter and phase accumulation on the discriminated result to obtain error-correcting angle, and use digital controlled oscillator to make table look-up and quadrant adjustment to obtain correcting factor; use the relationship of trigonometric function in each quadrant to compress inverse tangent look-up table ROM and digital controlled oscillator look-up table ROM.

一种涉及电通信技术的通用频率纠正的方法，其特征在于：它采用如下步骤：经过叉积的复数进行信号指数量化处理，通过该复数虚、实部信号的指数量化结果的差值及其极性直接反映虚、实部的正切值的量化数值以及所处象限，将处理后的结果通过反正切ROM表进行鉴频，鉴频后的结果经环路滤波和相位累加，得纠偏角度，通过数控振荡器针对纠偏角度进行查表和象限调整，得到纠正因子；通过个象限之间的三角函数关系来压缩反正切查表ROM和数控振荡器查表ROM的大小，本发明资源耗费小，效率高，可极大地节省内存资源。

The digital signal method is a discrete deconvolution technology.It uses the shape-factor to create the forward equation of subdivision interpretation,and the discrete signal anti-filtering technology to get the inversion equation and the general formula for numerical solution of quantitative radionuclide content.

本文提出的数字信号法是一种离散反褶积法，它采用形态系数创建分层解释正演方程，利用离散信号反滤波技术求得反演方程及定量核素含量的数值解通式。

In addition, this article took the isoclinic information which unwrapped already into isochromatic formula to get the correct retardation. This method might not get the form of arc-tangent because there are not output quarter-wave plates in three and six phase-stepping methods. Therefore, this paper corrected it by load-stepping method.

另外，为了使相位展开技术能顺利完成，进而得到相对的延迟量，在修正等色线包裹相位图中的不连续点时，本文使用之方法是将修正完的正确等倾线数值带入等色线公式中，此法在三场与六场中因为少掉了输出的四分之一波板，造成公式的结果使得条纹角度分布非反正切形式，因此需另外使用负载相移法来做修正。

In this study, Atmospheric Research Model (MM5) and Four-dimensional data assimilation was used to simulate the land and sea breeze circulation over the Pearl River Delta Region.

利用中尺度数值模式MM5和四维同化技术相结合对珠三角地区的海陆风过程进行了模拟。

Previous researches of pile group loaded laterally are carried out mainly by experimental and theoretical analysis.

随着计算技术和土的本构理论的发展以及微机性能的改善，数值分析方法逐渐成为一种应用广泛的研究方法。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。