Analysis of organic acids and inorganic anions in tobacco by ion chromatography and cluster analysis 烟草中有机酸和无机阴离子的离子色谱法分析及聚类分析研究
Analysis of organic acids in cigarette mainstream smoke by ion chromatography and cluster analysis 离子色谱法及聚类分析研究主流烟气中的有机酸
We obtain seven spectra of H n+ ( n ≤ 4) cluster ions at different delay time using a penning ion trap. The data is adequate to confirm that H 4+ is stable cluster ions for 1s. 利用Penningiontrap获得了七种不同延时时间(即反应时间)的离子谱Hn+(n≤4),用充分的实验数据证实了H4+是稳定的,稳定时间达1秒量级。
Extract ion of C_ ( 60) ̄-and carbon cluster ion beams from a Cs sputtering negative ion source 碳团簇及C(60)负离子的产生
The isotopic effect suggests another important property, ia addition to the magic numbers, of mass spectra of the sputtered ion cluster. 这是溅射离子簇质谱中继“幻数”结构的另一个重要性质。
Study of Doping Ion Cluster for Strong Correlation Superconductor by Born Model Solution and Positron Experiment 强关联超导体掺杂离子团簇效应的Born模型解析及正电子实验研究
The current knowledge and recent progress in this field are reviewed and the influence of the dynamic interacting force on the ion cluster ′ s energy loss and Coulomb explosion patterns are discussed. 综述近几年关于分子离子和离子团与固体材料相互作用的理论研究进展,重点讨论了离子之间的动力学相互作用效应对离子团库仑爆炸过程和能量损失的影响。
In this paper we will comprehensively discuss the production, the formation and the structural characters of the ion clusters as well as their potential applications in the development of cluster physics. 本文系统地讨论了离子簇的产生、形成和结构特点以及离子簇物理发展的应用前景。
Based on analyzing the structure ion channel and neural combination the paper gives the conception of homology neural cluster and introduces the characteristic of homology cluster and the advantage of representing external stimulus character. 该文在分析神经元离子通道及生物连接方式的基础上,提出同构神经元簇的概念,介绍了它的特点及采用同构神经元簇对外界特征表达的优势。
Injected Ion Drift Tube Technique for Measuring Atomic Cluster Structures 注入离子漂移管技术测量原子团簇结构
In FAB negative ion mass spectra the typical ( M-n)-cluster ion is observed and the ( M-1)-ion shown as its highest intensity is the base peak for each of the samples. FAB负离子质谱,获得[M-n]~-典型离子簇,[M-1]~-作为最强离子是每一个样品的基峰。
The capacity of potassium ion associated with soft matter cluster was higher than that of lithium ion under the same ion concentration spectrophotometry. This is because the radius of lithium hydrated ion is longer than that of potassium. 在相同外加碱离子浓度下,钾离子在软团簇上的缔合量大于锂离子在软团簇上的缔合量,这是由于锂水合离子半径较钾水合离子半径大的缘故。
The gas phase reaction of the singly positive charged aluminum ion with ethanethiol molecule clusters was investigated by the laser ablation molecular beam method. The cluster ions composed of Al+ and 1~ 6 ethanethiol molecules are produced. 利用激光溅射-分子束的方法研究了Al+和乙硫醇的气相化学反应,结果观察到了Al+与1~6个乙硫醇分子形成的团簇离子。
The analysis of both ion peak width and the ion intensity ′ schange with the gas resource pressure suggests that the protonated cluster ions are coming from the fragment of larger cluster ions and the relevant unprotonated cluster ions are the direct ionization products of neutral clusters. 通过分析离子峰宽和离子信号强度随气源压力的变化,得到质子化团簇离子来源于大团簇离子的碎裂,而非质子化团簇离子是中性团簇直接电离的结果。
Absorption spectrum of ion cluster CoF in crystal LiF and MgF_2 was calculated by using ab initio calculation method. 用量子化学的从头算方法对LiF与MgF2晶体中的离子簇CoF6~(4-)的电子结构与吸收光谱进行了计算。
The extremely high density of deposited energy of GeV heavy ion can be reached with MeV cluster beams. Under this conditions new phenomena should be discovered. 利用MeV量级能量的团簇束即可达到GeV重原子离子在物质中的能量沉积密度,在这种条件下,载能团簇与物质作用将成为丰富新现象的源泉。
In this paper, parallel cluster technology was used to accomplish the large numerical calculation of ion transmission by PC cluster nodes which cooperated with each other. 本文通过并行集群技术,实现多个计算节点协同完成离子传输模拟的数值计算任务。