In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
摘要通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
Applying the full wave analysis for aperture coupled microstrip antennas, the spectral domain integral equations are founded and solved numerically by the method of moments.
本文利用全波分析，建立了口径耦合微带天线的谱域积分方程，并用矩量法求其数值解。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
The IC precondition technique is applied to the integral equation to improve the spectral properties and accelerate the iteration speed of matrix equation.
把不完全乔里斯基预条件技术应用到其积分方程，极大地改善了其谱特性，加速了矩阵方程的迭代收敛。
The propagation formula of the cross-spectral density of partially coherent flattened Gaussian Beam(PCFGB) through ABCD optical system was derived using Huygens-Fresnel diffraction integral formula.
利用惠更斯-菲涅尔衍射积分公式导出了部分相干平顶高斯光束（PCFGB）通过ABCD光学系统的传输公式。
For experimental setup to calibrate spectral radiance by applying a diffuse plane, the measured spectral radiance can be obtained through integral of spectral radiation flux entering the spectrometer.
在利用漫反射板标定光谱辐亮度的实验装置中，标准灯完全可以近似为点光源。
This paper deals with extraction of spectral lines of underwater targets in background noise using a space-time integral method.
利用目标线谱与自噪声线谱在时间域和空间域上的差异，采用时空联合手段研究舰船噪声中目标线谱的提取方法。
Line graph plays an important role in the study of spectral graph theory. By using the operator generalized line graphs on some integral graphs, a series of infinite integral graphs is constructed.
线图在图的谱理论研究中起着重要的作用。对一些整谱图，运用一种全新的广义线图算子方法，构造出了一系列无穷多个新的整谱图。
Line graph plays an important role in the study of spectral graph theory. By using the operator generalized line graphs on some integral graphs, a series of infinite integral graphs is constructed.
线图在图的谱理论研究中起着重要的作用。对一些整谱图，运用一种全新的广义线图算子方法，构造出了一系列无穷多个新的整谱图。
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