查询词典 gamma ray

Grand Unified Theory, Lepton Stars and gamma-ray Bursts, Quasars

大统一理论，轻子星和γ射线暴，类星体

In this project, we study in details the light curve and spectrum of gamma-ray bursts.

本项目对伽马暴的光变曲线和能谱进行深入研究，定量解答了M。

Thus, the Gamma-ray spectral logging apparatus in this paper will become a tool of ad vanced logging in ore miningg industry and as wellas the coal industry. The study is advanced and practical.

结果表明，研制的γ能谱测井仪，将为我国新形势下的有关非油气地质工作，如固体矿产勘探、煤田地质、水文工程地质及环境地质等等，提供一种先进的测井手段，使我国应用于小口径的放射性γ能谱测井技术能跻身于世界前列，研究成果是先进实用的，具有经济、社会和环境效益，可在我国推广应用。

The result of neutron flux measurement by above mentioned method with an error of about 1% when the gamma ray interferenec is up to 18 7% has been o...

当60Coγ在中子信号幅度区的干扰计数率，占中子计数率的18.7％时，该方法对净中子注量测量结果导致的误差约为1％。

The main research of this paper is about the pre-amplifier used in thenuclear radiation examination, in view of gamma ray's characteristic affectionon the matter, the electric circuit's noise and disturbance are restrainedbased on the nuclear electron theory.

本文主要研究用于核辐射检测的前置放大器，针对γ射线与物质相互作用的特点，运用核电子学的理论解决电路中的噪声和干扰问题。

The log data of Samandepe gas field in the Amu Darya Right Bank of Turkmenistan are old in logging suites, limited and inconsistent in logging items between early exploratory wells and later development wells. Based on the correlation of different log data, the suitable log data are selected from the available logging suites to build up a mathematical statistical model of artificial fitting acoustic curve. The non-linear correction of neutron and gamma ray data was performed to ensure the relative rationality and uniformity of log interpretation.

针对土库曼斯坦阿姆河右岸萨曼杰佩气田测井资料存在系列老、项目少、早期探井和后期开发井测井项目不统一的现状，通过不同测井资料问的相关分析，合理选用已有测井系列的测井资料，建立人工拟合声波曲线的统计数学模型；通过对中子伽马资料进行非线性校正，保证了测井解释评价资料的相对合理和统一。

The parameters of X-ray sensitometry ,such as sensitivity,gradation,gamma,fog,and resolving power,granularity,silver contents of emulsion layers of films and total thickness of coating layers of films produced in Russia and by foreign companies and the quality classification of these films by using recommended Russian standard of quality classifi.

介绍了无损伤检测用射线技术胶片的质量分类国际标准和俄国标准的要点，做了俄国国产和国外射线技术胶片的 X射线感光测定和解相力、颗粒度、含银量以及乳剂层厚度的检测，将这些胶片按推荐用于俄国的分类标准做了分类。

A black hole forms inside surrounded by a disk of accreting matter, and, within a few seconds, launched a jet of matter away from the black hole that ultimately made the gamma-ray burst. Here we see the jet breaking through the outer shell of the star, about nine seconds after its creation.

在太空中平均每天可以探测到一段出现一瞬间的高能量伽玛射线，而计算显示这秒钟的能量大约有一整颗恒星那麼大，天文学家称此为伽玛射线暴。

II. The irradiation effect of Ultra-violet light and Gamma ray of the polyvinyl chloride were studied by III NMR,~(13)C NMR, IR, and XRD.

第二，用'H NMR，C NMR，IR，和XRD 研究了聚氯乙烯的紫外光和 Cor 射线的辐照效应。

Bolometric flux, hypersphere cosmology, large scale structure of universe, quasars, supernova, gamma ray burst, redshift periodicity

谱视亮度，超球面宇宙，宇宙大尺度时空结构，类星体，超新星，射线暴，红移周期性

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。