【摘 要】
:
Atomic and molecular beams are widely used nowadays in physics and chemistry experiments. The nozzle, or free-jet, molecular beam is a neutral beam extracted fr
【出 处】
:
IMP & HIRFL Annual Report
论文部分内容阅读
Atomic and molecular beams are widely used nowadays in physics and chemistry experiments. The nozzle, or free-jet, molecular beam is a neutral beam extracted from an under-expanded, supersonic, continuum jet expansion from a high-pressure gas source into a low-pressure ambient background. The beam has many special properties which are exactly demanded in atom/molecular experiments.By properly analyzing the formation mechanism of supersonic gas jet, the factors directly related to transverse momentum
Atomic and molecular beams are widely used nowadays in physics and chemistry experiments. The nozzle, or free-jet, molecular beam is a neutral beam extracted from an under-expanded, supersonic, continuum jet expansion from a high-pressure gas source into a low The beam has many special properties which are exactly demanded in atom / molecular experiments. By a recent analysis of the formation mechanism of supersonic gas jet, the factors directly related to the mass moment
其他文献
The dissolving behavior of the S-119 organic filth was studied in different solvents with the oscillator to screen out the better solvent,which is used in the n
As the hill gap is required to increase by ~1 cm due to the installation of RF, centering coils, beam diagnostics and etc., several adjusted geometries of the m
越来越多的广告商开始质疑传统广告方式对于品牌构建的作用.与此同时,又有很多新媒体平台诞生.文章将以电影植入式营销为视角,探究其对于品牌传播过程中作用.
随着新课改的不断深入,对小学语文教学有了更高的要求,因此小学语文教师要积极转变教学理念,将研究性学习运用到语文教学中,以提高学生的自主学习能力,促使学生全面发展.本文
The cross-section ratios-ofσDE/σSC,σTE/σSC,σQE/σSC andσME/σSC as well as the relative ratios among reaction channels in double-electron active, triple-e
Fission track and micromanipulation technique is an effective method for locating and transferring of the uranium-bearing particles in swipe samples. It is very
[摘 要] 要想培养国家需要的创新型人才就要不断给学生注入新时代需要的思想和技能,这就需要图书馆不断发展创新,针对图书馆发展过程中出现的图书单一、设备陈旧等问题提出了有关的策略,希望能对图书馆的发展有所帮助。 [关 键 词] 图书管理;发展模式;图书馆发展 [中图分类号] G717 [文献标志码] A [文章编号] 2096-0603(2017)28-0251-01 一、图书管理的发展现状
The ovaries of Kun-Ming strain mice (3 weeks) were irradiated with different doses of I2C6+ ion or 60Coγ-ray. Chromosomal aberrations were analyzed in metaphas