查询词典 gamma ray

In the second part, we analyze the problems in dealing with the formation of magnetic fields and injection of particles under the standard model of gamma-ray burst afterglows, and discuss the evolution of relativistic electrons' energy spectrum therein and their radiation spectrum and light curves.

在本论文的后半部分，我们分析了伽玛暴余辉的标准模型在处理激波中磁场形成及粒子注入方面存在的问题，讨论了其中相对论性电子能谱的演化及其辐射谱和光变曲线。

The researches include the dense medium effect on the evolution of afterglows, constraints on the physical parameters of GRBs, the origin of the energetic gamma-ray emission from GRBs, the inverse Compton spectra in the very early afterglows, and energy source mechanism of the supernova-GRB connection.

研究工作主要包括：γ暴周围环境对余辉演化的影响、γ暴的物理参数的限制、极高能γ射线的起源、极早期外激波区域的逆康普顿散射光谱与观测效应以及γ暴与超新星关联的理论解释。

At 240 boors co-cultured groups irradiated by 2.5~3Gy, tumor cells still survive and proliferate. Conclusion Gamma ray irradiation have killing effect to some PBMCs.

而2.5与3Gyγ射线辐照组对肿瘤细胞的杀伤作用明显低于0.5~3Gy各组，在培养至240h时，仍有肿瘤细胞存活并出现增生。

Note: Woosley's"collapsar model" explains the common long gamma-ray burst, explosions lasting 2 seconds or more.

注意： 卫斯理的&黑洞模型&能够解释长于2s的长周期γ射线爆发。

The collapsar model of gamma-ray bursts.

射线爆发的黑洞模型。

Image data from the Swift detectors, normally intended to follow cosmic gamma-ray bursts, were recorded on January 28. The data are combined here, along with a sky survey image of background stars, to show optical and ultraviolet light in green-blue hues and x-rays from the comet in red.

通常用来追踪珈玛射线爆发事件的雨燕号卫星，在1月28日转向鹿林彗星，而所取得的数据再和巡天摄影的背景星场结合，并用绿-蓝色泽及红色来呈现彗星的可见光、紫外光和X射线辐射。

All dogs received a single dose of 60Co gamma ray irradiation to the liver by a 5×5 cm^2 portal, radiation dose to 5 cm depth were 1,800 and 2,200 rads for the first and the second group respectively.

本实验利用14只健康的狗，先以自动分析机建立正常血清12项化学成分的数值，然后分两组实验，分别在右上腹部5cm深处接受一次1，800或2，200雷得钴六十伽马线的照射，照野是5×5cm。

The pulse shape is similar to that of the "normal" gamma-ray pulsars.

其脉冲形状和&正常&伽玛射线脉冲星类似。

Objective To investigate the protective effect of hepatocyte growth factor on protein synthesis in rat cardiomyocytes exposed to gamma-ray irradiation.

目的研究肝细胞生长因子对^60Coγ射线照射体外培养的大鼠心肌细胞蛋白表达的影响。

To make clear to what degree the exchange of substance in the natural environment causes changes in local environment, the author resorts to geophysical techniques and means to monitor changes in salinity of shallow ground water, thorium/uranium/kalium spectroscopy gamma ray and minor elements in shallow surface layer.

为了探讨自然界的物质交换引起当地环境变化的程度，探索用矿场地球物理的方法和手段来监测浅层地下水矿化度的变化；钍、铀、钾自然伽马能谱的变化以及地表浅层微量元素的变化等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。