查询词典 gamma ray

Blazars are one of the most extreme classes of active galactic nucleus, with high luminosity, large amplitude and rapid variability, high and variable polarization, radio core-dominance, and apparent superluminal speeds. Their broad band emission extends from radio up to gamma-ray band, and is dominated by non-thermal process.

中文摘要：在AGNs中，Blazar天体是具有极端性质的一类，它以大幅快速光变、高且变化的偏振、射电核主导、视超光速运动、全波段非热辐射为主要特征。

The effect and aftereffect of radiation pretreatment of wheat straw with gamma ray were studied.

文章涉及γ射线辐射预处理麦秸的辐照效应及辐照后效应研究。

The high-correctness C/O energy spectrum logging system features use of fast neutron in deuterium and tritium reaction along with alpha particles flying technique to log, and is composed of neutron counter tube accompanied by alpha particles test system, neutron shielder, gamma ray detector, fact electric timer and computer for data acquisition, processing and control.

本发明提供一种高准确度的碳／氧比能谱测井系统，该系统是将氘氚反应快中子伴随α粒子飞行时间技术用于碳／氧比能谱测井，包括具有伴随α粒子探测系统的中子管，中子屏蔽体，γ射线探测器，快电子学定时部件以及数据获取、处理和控制计算机。

In addition, the gamma ray bursts, which are mysteriousphenomena in high energy astronomic physics research, are also studied in thethesis.

联合实验的主要目的是使乳胶室和大气簇射阵列的特点相互补充，提供更多的信息，进行宇宙线原初粒子的成分、能谱以及超高能强相互作用的研究。

"This is one of the biggest questions in the gamma-ray business," says astrophysicist Neil Gehrels of the Goddard Space Flight Center.

"这是γ射线爆发研究领域的最大问题"，戈达德太空飞行中心的天体物理学家 Neil Gehrels说。

The fading afterglow of the gamma-ray burster, cataloged as GRB080319B, isshown in thesetwo panels in X-rays and ultraviolet light.

编号为GRB080319B伽玛射线爆发的余晖，上面这两幅影像，分别是左边的X射线波段以及右边的紫外线波段影像。

So supported by well core experimentation, the *** analyzed the logging response feature and mechanism of thin bed, and point out that many factors can affect the logging response of the reservoir, the main factor which mostly influence the logging response is the thickness of thin layer, and the content of carbonite have a great influence on the response of 3-porosity logging.we make use of core experimentation, combined with logging material, firstly the *** do the lithology correction and thinckness correction for resistivity curves, and based on the content of mud that derived from the core experimentation, the *** present the thickness correction model of gamma-ray logging and self-potential logging, and choose the appropriate ways to compute the carbonate content and using the value of mixed frame in order to correct the influence from the carbonite, based on this, the *** gives a effective methods to correct the thickness influence for 3-porosity logging.

本文首先以岩心实验结果为依据，对研究区薄层的测井响应特征和机理进行了分析，指出多种地质因素影响着储层的测井响应特征，而层厚是影响测井响应最主要的因素，且碳酸岩含量对三孔隙度测井的影响很大。利用岩心实验分析资料，结合测井资料，首先对电阻率测井曲线进行了岩性的校正和层厚校正；利用岩心分析泥质含量，研究了自然伽马和自然电位的层厚校正方法，并建立了层厚校正模型；在有效计算储层碳酸岩含量和混合骨架参数值的基础上，研究了针对碳酸岩含量对测井曲线的影响进行校正的方法，进而提出了一套对三孔隙度测井曲线的薄层层厚影响的校正模型。

The paper introduces system structure,gamma ray testing,core location, sample depth emendation and so on.

文章介绍了系统结构及伽马测试、岩心归位、样品深度校正等。

The preliminary results of searching for steady TeV gamma ray emissions from Crab Nebula with these data were presented in this paper.

报道了利用Tibet Ⅱ在1995年10月至1997年9月、HD阵列在1997年2月至8月收集的数据寻找来自蟹状星云方向的10TeV和3TeVγ射线稳定发射的初步结果。

Analysis shows that the accumulative excess events of steady 3TeV gamma ray emissions from Crab Nebula was increasing stably and the statistical significance reached 3.2σ, whereas no statistical significant evidence of steady 10TeV and 30TeV ga...

分析表明，来自CrabNebula的 3TeVγ射线的累积信号事例数显示了稳定增长的趋势，显著性达到了 3.2σ，但没有发现 1 0TeV和 30TeVγ射线稳定发射的迹象

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％。