电离

Objective: To study the protective effect of glutamine on intestine in mice damaged by radiation.

目的：探讨谷氨酰胺防治电离辐射损伤肠道的作用机制。

In Figure 2-11b, a metal guard ring is added to the ionization chamber.

在图2-11b中，电离室上加了一个金属保护环。

In 图514 bFigure 5-14b, a guard ring is added to the ionization chamber.

在图514 b 中，在电离室上增加了一个保护环。

It includes radiological imaging physics, radiation oncology physics, nuclear medicine physics, the use of non－ionizing techniques such as nuclear magnetic resonance, ultra－sound, microwaves, radio frequency waves, and lasers, as well as health physics.

医学物理包括放射肿瘤物理(radiation oncology physics， ROP)、医学影像物理(medical imaging physics， MIP)、核医学物理(nuclear medicine physics， NMP)，其他非电离辐射如核磁、超声、微波、射频、激光等物理因子在医学中的应用，和保健物理(health physics， HP)等分支内容。

Near infrared light is non-ionizing to human tissues, except heat generation due to absorption.

近红外光对人体组织没有电离作用，而只有因吸收产生的热效应。

Helium is the gas thought to be most active in the process.

这个过程中，电离氦的作用最活跃。

At embryonic day 14, MEFs were recovered from the embryos and cultured under the selection of HAT (0.016 mg of hypoxanthine/ml, 0.01 mmol/L aminopterin, 0.0048 mg of thymidine thymidine/ml), and the cell cycle, apoptosis, and the relative protein expressions were analyzed by flow cytometry and Western blot.

用不同剂量的电离辐射或紫外光分别照射ES或EF细胞，然后利用流式细胞仪检测该突变对小鼠ES细胞周期及对ES和EF细胞凋亡的影响，并利用Western blot检测相关蛋白的表达。

The modified expression of the broad emission-line profiles ire derived for the outflow kinematics model of the BLR driven by the radiation pressure. Taking into account the difference between the two lines HeI λ5876 and Hβ, it is shown the fact that the observed line width of HeIλ 5876 is broader than that of Hβ cannot be explained by the popular outflow BLR model evoked by W. G. Mathews. For comparison, line profiles of the gravitational infall model and orbital disk model are also calculated; the later is in good agreement with the observations Thereupon, conclusion is reached that the gravitational infall is an important process in the real BLR gas motion.

1推导了辐射压加速宽线云团径向外流，以及引力下落和转动等BLR运动学模型的谱线轮廓表达式，并考虑到光致电离计算表明的云团本身对Hβ和HeIλ5876谱线的辐射差异，用数值方法计算了它们的谱线轮廓，发现普遍流行的辐射加速气体外流模型不能解释HeIλ5876线宽大于Hβ线宽的观测事实，而引力下落模型则可以较好地解释观测，因此我们倾向于认为、径向内流运动很可能是BLR内的发射线云团真实运动的一个重要成分。

Under the γ-rays radiation,the abnormal structure of BM chromosomes mainly showed as chromosome translocation,deficiency and inversion,etc.,among which the translocation was mutual and simple one;and the deficiency was intercalary and apical one.

在电离辐射作用下，野蚕染色体结构异常的表现主要为易位、缺失、倒位等，其中易位的类型为相互易位和简单易位；缺失的类型为中间缺失和顶端缺失。

Using the semiclassical rescattering model, we have studied the effect of molecular internuclear distance on non-sequential double ionization.

利用半经典再散射模型，我们研究了激光强度在一定范围内时分子核间距对非时序双电离过程的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。