光子

The stimulated emission from a two-level atom embedded in a photonic band-gap structure is studied.

受激辐射机制的研究是光子晶体激光器设计中的一个基本问题。

It is found that the asymmetric structures are more profitable compared with symmetric structure in applications.

计算发现采用不对称结构的一维光子晶体结构在实际应用中有更大的灵活性。

This paper presents a new theory to explain the synchrotron radiation.

从虚光子的康普顿散射出发，给出了一种对同步辐射进行解释的新理论。

The concept of near-field microscopy was proposed in 1928 by E H Synge, and has greatly developed. Many kinds of near-field ~microscopes have been invented.

近场光学成像理论建立至今，已经有多种形式的近场光学显微镜陆续问世，其中扫描近场光学显微镜和光子扫描隧道显微镜有了较为快速的发展。

Methods Technetium 99m (99mTc) ECD single photon emission computed tomography was performed in 67 newborns with HIE.

采用锝(99mTc)乙撑双半胱氨酸二乙酯单光子发射型计算机断层摄影术对67例HIE患儿进行脑血流灌注断层显像。

Treatment methods consisted of local radiotherapy using Cobalt-60 teletherapy, megavoltage photon beam or electron beam.

局部治疗的方式利用钴60，百万电子伏特能量的光子或电子射线。

The radiotherapeutic dose over the whole pelvis was 30Gy to 36Gy by Co 60 unit or 15Mev. Linear Accelerator and further teletherapy with changed portal or brachytherapy of high dose rate (Co 60) followed according to location and size of the recurrence. The total vaginal one-centimeter submucosal dose was 75-80Gy.

治疗方法以放射线治疗为主：使用钴60或15MV光子射线先照射全骨盆腔30至36Gy的剂量；然后再按病灶部位及范围，或改变照野方向和大小继续作远隔治疗，或采用高剂量率腔内近接治疗，使阴道粕膜下1公分处总共接受75至80格雷的剂量。

And the test results quite match our numerical simulations.

本文基于多层介质膜，设计并制备了三维光子晶体。

It is found that the threshold intensity of nonlinear bistability of the one dimensional photonic crystal with dispersive media is much lower than that without dispersive media.

在光学双稳态中，与仅含非线性媒质的光子晶体相比，得到了低得多的阈值入射光强。

We simulate the optimized patterns by choosing the polarization and intensity threshold.

设计完成制作二维光子晶体模板的光学系统的搭建。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。