查询词典 delta function

In the PIM, the interpolation function has the Delta function property, so the essential boundary conditions can be simply imposed.

在该方法中，插值函数具有Delta函数性质，可以方便地施加边界条件。

The system point spread function is designed to be similar to the Dirac delta function. The experimental results and the theoretical calculation of the PSF are in accordance. The experiments on absorbers embedded in the intralipid solution with concentration of 1% and depth of 1.7 cm are implemented.

用菲涅耳波带板扫描全息成像系统进行了成像实验，得到了嵌埋在浓度为1%、深度为1.7 cm的脂肪乳剂中的吸收体清晰的再现像，吸收体为直径0.4 mm的金属丝和内径为6.0 mm的金属环，另外，也得到了直径为2.5 mm的黑塑料球的再现像。

In our analyses andcalculations,the effects of impurities and defects on the growth process areattributed to a new effective surface tension which has different scalingbehavior from the original one,and the growth inhomogeneities are modeledby Delta function and screened Coulomb function,respectively.

在分析计算中，是通过引入新的有效表面张力系数，将杂质和缺陷对表面生长过程的影响归结为一个新的有效的表面张力系数，这个表面张力系数与原来的表面张力系数具有不同的标度行为，对非均一生长率则分别使用了Delta函数模型和屏蔽的库仑函数模型。

Firstly, we use Gaussian kernel function to replace the Dirac delta kernel function, and embed the re-sampling into filtering to eliminate the impoverishment problem of the standard particle filter.

2为了解决光线变化的情况下，以及发生旋转、平移和尺度变化等姿态变化的运动目标的鲁棒跟踪问题，提出了一种基于自适应观测模型的粒子滤波跟踪算法。

The approximation of field variable by RPIM is performed in a parameter domain. The shape function of RPIM possess Delta function's property.

该方法利用径向点插值方法，在参数域对每一个非样本点的支持域进行过点插值，构造出具有Delta函数性质的插值函数，能够实现参数域场变量的快速插值近似。

In the context of signal processing it is often referred to as the unit impulse function. Note that the Dirac delta is not strictly a function. While for many purposes it can be manipulated as such, formally it can be defined as a distribution that is also a measure .

在物理上，通常用于代表脉冲函数，或者呈点分布的物理量，例如质点、点电荷等；另外，delta函数常用于表示对物理量在某点的抽样，这一点不仅在数学物理方法这样的理论学科中常用，在实际的工程通信中也很常用，这时delta函数被用作采样函数。

The shape function of the meshless local radial point interpolation method has the Kronecker delta function properties, and no additional treatment to impose essential boundary conditions.

无网格局部径向点插值方法的形状函数具有Kronecker delta函数的特性，便于施加位移边界条件，不需要进行特殊地处理。

The shape function obtained in the trail function had the Kronecker Delta property. and no additional treatment were required to impose essential boundary conditions.

构造成的形函数具有Kronecker Delta性质，不再需要额外的处理来施加本质边界条件。

The present method is applied to two-dimensional potential problems and the corresponding discrete equations are derived. Because the shape functions so-obtained possess the Kronecker delta property, the essential boundary conditions can be enforced as the FEM; furthermore, the Heaviside step function is used as the test function, there is no domain integral, and only a regular boundary integral is involved.

因为滑动Kriging插值方法构造的形函数满足Kronecker函数性质，所以本文建立的改进的无网格局部Petrov-Galerkin法可以像有限元法一样直接施加边界条件；由于采用Heaviside分段函数作为局部弱形式的权函数，因此在计算刚度矩阵时只涉及边界积分，而没有区域积分。

The Yushulin oilfield is located in eastern slope of Sanzhao seg of central sag zone in the northern part of Songliao basin. Its main oil-producing formations are Fuyu and Yangdachengzi oil layers of mesozoic group cretaceous. Its reservoir is fluvial facies sediment. Main sandstone is positive circle channel sandstone with calcium in the beneath, and microelectrode curve is box distribution function. Its secondary oil-producing formation is Yaoyi part of Putaohua oil layer. Its reservoir is delta front sediment. Main sandstone is subaquatic distributary channel sandstone, and microelectrode curve is box distribution function.

榆树林油田处于松辽盆地北部中央坳陷区三肇凹陷东部斜坡，主要产油层系是中生界白垩系泉三、四段的扶余、杨大城子油层，储层为河流相沉积，主要砂体为有底钙存在的正旋回河道砂体，微电极曲线形态为箱型；其次为姚一段的葡萄花油层，储层为三角洲内前缘沉积，主要砂体为水下分流河道砂体，微电极曲线形态为箱型。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样