查询词典 Delta

In this thesis, the major study is the design of a switched-current Analog-to-Digital Converter. Both the delta-sigma modulator and the decimator will be discussed separately.

中文摘要本论文主要是在研究切换电流式三角积分类比数位转换器的设计，可将其分为类比的三角积分调变器以及数位的降频数位滤波器两部分个别讨论。

The process of creating a DSD signal is conceptually similar to taking a 1-bit delta-sigma analog-to-digital converter and removing the decimator which converts the 1-bit bitstream into multibit PCM.

过程中创造一个信号，渠务署，是在概念上相似，以1位Δ-Σ模拟到数字转换器，并消除decimator转换1位码流成多位的PCM 。

Based on the BISQ model, we studied the elastic wave speed in two-phase porous isotropic media and its relation with Biot-flow and squirt-flow. The Green function is obtained for a point load in the two-phase porous isotropic media using the decomposition of the field potencial and the properties of Delta function. The expression and effects of squirt-flow in BISQ-Green function are discussed.

以BISQ模型的波传播方程为基础，研究了弹性波在孔隙各向同性介质中的传播速度及与流体的Biot流动和喷射流动力学机制的关系，进一步利用场势分解和δ函数的性质，给出了同时受Biot流动和喷射流动两种动力学机制作用下，两相介质波场位移在集中力作用下的Green函数，并讨论了喷射流动在Green函数中的表现形式和作用。

In calculation, the delta function is chosen as the basis and perfect convergence to the FMM results is achieved.

在计算中，选用δ函数作基函数，达到相当好的收敛性。

Delta function is a deliberately defined mathematical tool for analysis, which is devoted particularly to illustrating of the physical model of points distribution, and which is widely applied to analyze the high concentration of quality and energy on one point in space or in time in physics.

δ函数是人为定义出来的一种分析工具，正因为它在数学上的简单性，才导致了它在物理上被广泛应用于研究质量、能量在空间或时间上高度集中的各种物理现象。

By solving the Schrodinger equation and using the boundary conditions of delta function, We can get the Buttiker scattering Matrix.

通过解薛定谔方程求得自旋空间的波函数，再由边界条件确定波函数的振幅，进而求出散射矩阵。

The formulated shape functions have the property of delta function and the essential boundary conditions can be applied as easy as in conventional finite element method.

然而，在紧支径向基函数点插值方法的实现过程中，仍需要背景积分网格进行辅助计算。

"Impulse response ",If we input a Dirac delta function to this system, the result of the LTI transformation is known as the impulse response.

"，"如果我们给系统输入一个狄拉克δ函数信号，线性时不变转换的结果是脉冲响应。

The created shape functions possess the properties of the Kronecker delta function, which allows easy imposition of essential boundary conditions.

而点插值法具有精确的函数拟合性质，且形函数具有Kroneckerdelta函数的特性，使得施加本质边界条件变得简单。

A new approximation function based on the coupling of radial basis functions and polynomial basis functions is obtained, which has the property of Delta function.

径向基函数和多项式基函数耦合可以构造具有插值特性的近似函数。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。