极限情况

In such a medium, the direction of the Poynting vector monochromatic plane wave is antiparallel to that of its phase velocity. Because of that, DNG displays some unusual electromagnetic properties such as backward-wave effect, negative refractive effect, perfect lens and a limit situation, zero index of refraction materials.

在这种材料中，单色均匀平面波的相速方向和坡印亭矢量方向是相反的，因此使双负材料表现出一系列反常的电磁特性如：回波效应、负折射效应、完美透镜效应和一种极限情况即零折射率材料等。

One of the single soliton solutions has the kink-antikink structure and this solution reduces to the kink-like solution and the bell-like solution under different limitation.

在不同的极限情况下，该解分别退化为mKdV方程的扭结状或钟状孤波解。

In this limiting process where the closed curve shrinks to a point, size and shape automatically vanish from our considerations and we obtain laws connecting changes of magnetic and electric field at an arbitrary point in space at an arbitrary instant.

在闭合曲线缩成一点的极限情况下，线圈的大小和形状就自然而然地从我们的考虑中消失，于是我们就得到把任何时刻及空间中任何一点的磁场和电场的变化连结起来的定律。

In the continuous limit, the quantum one-dimensional extended Hubbard lattice model with half-filled band is transformed into the fermion field.

在连续化极限情况下把量子一维格点扩展Hubbard模型变换为连续的费米场。

The study of the consistency of ABCs shows that Higdon抯 operator, Mur抯 ABC, dispersive ABC and etc.

给出了当步长趋于零的极限情况时，廖吸收边界条件的微分方程。

The latter is only a special, limiting case of the Lorentz transformation when the relative velocities of two c.s.

后者只是两个坐标系的相对速度为很小时的特殊的极限情况。

Based on the method of polynomial pseudo-remainder division, we also give a practical method for determining the conditions of a class of theory-reconstructions in real closed field.

形式系统序列的良极限行为及其应用：本文考虑了计算的两种极限情况，一种是集合论极限，另一种是基于距离的极限。

Then these equations are discussed in several limiting cases,such as the ground state,high temperature limit and weak and strong coupling.

接着，分析了TBAE的一些极限情况，如低温、高温极限，弱相互作用和强相互作用耦合极限。

Here we have discussed the Casimir force of Maxwell-Chern-Simons gauge field and obtained the new results, namely the contribution of force of M-C-S gauge field to the Casimir force zero temperature, the radiative correction to the Casimir force of M-C-S gauge field at zero temperature and Casimir force of M-C-S gauge field at finite temperature between two parallel ideal conducting wires.

本文讨论了两个平行的，理想的金属线之间Maxwell-Chern-Simons规范场的Casimir效应。不仅得到了绝对温度下自由的M-C-S规范场对Casimir力的贡献，而且得到绝对温度下M-C-S规范场的真空涨落对Casimir力的辐射修正以及温度对M-C-S规范场的Casimir力的修正，并且分别考虑了无质量极限，低质量极限和高质量极限情况。

In particular, we discuss the distinct difference between the spectra of one-atom and two-atom mazers.

对单原子情况我们分别计算了热原子与超冷原子两种极限情况，并进行了比较和讨论。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。