查询词典 gamma ray

Supernovae also come from larger, more developed galaxies than do the gamma-ray bursts.

超新星也来自于更大更成熟的星系的星系。

The minerals of igneous formations were described and a bulk volume model based on mineral and including porosity was established. The logging response equations of density, apparent neutron porosity, acoustic travel time,gamma ray and volume photoelectric cross index were deduced. The volume content of four minerals in matrix was calculated. The igneous rocks were classified according to the international igneous classification scheme proposed by IUGS (International Union of Geological Society).

分析了火成岩中的矿物成分，并基于此建立了以矿物为基础并包含孔隙度的体积模型；建立了密度、视中子孔隙度、声波时差、伽马射线和体积光电吸收截面指数的测井响应方程，计算了岩石骨架中4种矿物的体积含量，依据国际地质科学联合会提出的火成岩矿物分类方案对火成岩进行了分类。

The history and actuality of the observational and theoretical studies on gamma-ray bursts and their afterglows are reviewed, the theoretical models of this field are introduced in detail, and some problems of these models are discussed.

本文概述了gamma射线暴及其余辉观测和理论研究的历史及最新进展，详细介绍了gamma射线暴领域的理论模型以及存在的问题，并介绍了本人在硕士研究生期间所做的gamma射线暴分类和光变曲线研究方面的工作。

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。

The uptake of 〓I-OxLDL in adipocytes was determined by gamma ray counter and normalized to protein concentration of each sample, was expressed as nanograms of 〓I-OxLDL uptake per milligram of cell protein. Reverse transcription polymerase chain reaction was used to evaluate PPARγ and CD36 mRNA expressions.

采用酶联免疫吸附法检测血浆IL-6以及脂肪细胞分泌IL-6的水平；采用gamma射线计数仪来检测脂肪细胞对〓I-OxLDL的特异性摄取情况，采用改良Lowry法进行细胞蛋白浓度测定，细胞对〓I-OxLDL的特异性摄取量以ng／mg细胞蛋白表示；采用逆转录聚合酶链式反应来检测PPAR γ和CD36 mRNA在脂肪细胞的表达情况。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"