提出了零阶摄动解的一个改进算法。
An improved algorithm for zeroth order perturbation solution is presented.
比零阶反应常见得多。
我们先讨论零阶反应。
这是一个零阶反应。
零阶环流近似地反映了东海环流的基本特征；
The zeroth order circulations (surface and depth-averaged) approximatively reflect basic characteristics of the circulation in the East Sea.
在通常的形式下，这个反应看起来就像零阶反应。
So in the usual formulation, this would still have the appearance of a zero order reaction.
零阶反应很少。
分析了入射光带宽对不希望存在的零阶光学涡旋模式的影响。
The influences of bandwidth on the unfavorable plane wave mode are analyzed.
几何操作反向映射的零阶内插与一阶内插的数据并行实现方法；
Then, the data parallel implementation scheme of zero-order interpolation and first-order interpolation of backward mapping are discussed.
并且利用零阶开环高斯滤波算法，对低通滤波图像的边缘进行了修正。
The algorithm of zero-order Gaussian filtering for an open profile (GFO) was used to correct the edge of the filtered image.
此外，在收敛到零阶出口压力边界条件时，构造了较易收敛的减缩修正方法。
Furthermore, a reduction correction method is built to promote convergence to boundary condition of exit pressure.
分析了数字方法运用于波形合成中由于DAC零阶保持特性造成的信号频谱高频失真的机理；
The mechanism of the signal spectrum distortion because of DAC's zero-order holding is analysed.
本发明涉及一种基于左右手复合传输线的零阶谐振天线，可在低剖面结构下实现全向辐 射。
The invention relates to a zero-order resonance antenna on the basis of left-right hand composite transmission wire, which can realize all-directional radiation under a low-profile structure.
实际上，虽然严格来说反应速率，对于化学组分来说是零阶反应，但对于光子来说不是零阶反应。
And in fact, strictly speaking although this is zero order in terms of the chemical constituents, it's not zero order in the photons.
对于水动力噪声情况，感兴趣的频率厚度乘积相当低，这时零阶对称模式对噪声辐射起主要作用。
For the case of hydrodynamic noise, in which the range of the frequency-thickness product of interest is relatively low, the symmetric zero-order mode dominates the noise radiation.
还给出一些有高阶劳厄区的电子衍射谱的实例，图上零阶和高阶的各班点指数均由计算机自动标定。
Some examples are given in which the electron diffraction patterns with Nth order Laue zone are indexed automatically by computer.
本文从零阶保持和滞后一拍控制这两个方面来研究：SPWM逆变电源的数字控制对系统性能的影响。
This paper focused on the research on the digital effect of SPWM inverter systemperformance from two aspects of zero-order-hold and one-step-delay.
从采样，计算延时，控制对象的零阶保持离散化等方面分析了数字化过程对有源电力滤波器性能的影响。
From sampling, calculation time delay, control object zero-order discretization, digitalization process influence to Active Power Filter is analyzed in this paper.
论文采用分数阶保持器(FROH)代替传统的零阶保持器(ZOH)，对减摇鳍系统进行数字控制设计。
This paper USES fractional order hold (FROH) to replace the traditional zero-order hold (ZOH), designs a numerical control system for the fin.
最后，设计了零阶变可信度气动特性优化管理结构与搜索算法，对某飞翼型无人机的翼型进行了气动优化。
Finally, zero order variable-fidelity aerodynamic optimization management framework and search algorithm were demonstrated on an airfoil optimization of UAV with a flying wing.
基于有限元分析软件ANSYS中的优化技术，采用零阶优化方法对双体采砂船门型架结构进行优化设计。
Based on the optimization modal in ANSYS, the structural design for the portal framed structure of a double-hull sand dredge was optimized.
计算结果指出，当轴棱锥的截面为圆对称的理想加工时，轴棱锥产生的光场分布为近似理想的零阶贝塞耳光。
Results show that if the cross-section of the axicon is ideally manufactured in circular symmetry, the field distribution behind the axicon is approximately an ideal Bessel beam.
针对零阶保持器引起的幅度误差和相位误差，以及D/A转换器有限字长引起的误差进行了较为详细的分析，并进行了D/A误差仿真试验。
This paper mainly describes the amplitude and phase errors caused by zero-order holder and the error caused by finite word length of D/A, and computer simulation test of D/A error is also introuced.
所谓重力异常线性构造信号就是重力异常水平总梯度沿重力方向的一阶导数且是大于零值的那一部分。
So-called gravity anomaly linear structure signal is derivative of gravity anomaly level total gradient on gravity direction, and the derivatives must be greater than zero.
本文根据极限环特性对单舍入量化器二阶数字滤波器的零输入稳定性进行了分析。
In this paper the zero-input stability of second-order digital filters with a rounding quantizer has been analyzed by the properties of limit cycles.
为探讨三阶色散对脉冲传播的意义，用数值模拟的方法讨论了在色散缓变光纤中零色散波长附近三阶色散对脉冲频谱演变的影响。
Propagation of spectra affected by third-order dispersion in dispersion-decreasing fiber near zero dispersion wavelengths was studied by means of numerical simulation.
传统的条码识别方法是通过二阶导数零交叉来定位条码边界。
Traditionally, the method of bar code recognition is based on zero crossing of the second derivative.
传统的条码识别方法是通过二阶导数零交叉来定位条码边界。
Traditionally, the method of bar code recognition is based on zero crossing of the second derivative.
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