查询词典 ionization current

The basic conceptions, including adiabatic ionization energy, vertical ionization energy, superexcited states, photoionization cross section, Rydberg state of atomic and molecular, dissociation and predissociation are discussed in detail.

着重讨论了同步辐射真空紫外光在原子分子研究领域中的应用，详细讨论了光与物质相互作用的一些基本概念，包括绝热电离能、垂直电离能、超激发态、光电离截面、原子分子的Rydberg态及离解和预离解的定义及相关的背景知识。

The dyes were extracted from textiles composed of natural or chemical fibers by methanol under ultrasounication, and then eluted with gradient by acetonitrile and 5 mmol/L ammonium acetate from an RP-C18 column with two segments in effluents. The first effluents accommodated Acid Red 26, Direct Blue 6, Direct Black 38 and Direct Red 28 with negative ionization mode, while the second accommodated Basic Red 9, Basic Violet 14, Disperse Blue 1, Disperse Orange 11 and Disperse Yellow 3 with positive ionization mode. Thus the investigated compounds could be identified simultaneously with single-run analysis no matter which type of the fibre the sample was and no matter which category of the dye the analyte was.

用甲醇超声同时提取天然纤维和化学纤维上的染料，以5 mmol/L乙酸铵和乙腈为流动相在C18柱上于前段洗脱酸性红26、直接蓝6、直接黑38和直接红28（采用电喷雾质谱负离子模式检测），于后段洗脱碱性红9、碱性紫14、分散蓝1、分散橙11和分散黄3（采用电喷雾质谱正离子模式检测），实现了对不同种类纤维织品中分属4类性质不同染料的一次提取和一次分析检测。

High performance liquid chromatography, carbon-13 nuclea magnetic resonance, chemical ionization mass spectrometry and gas chromatography with flame ionization detection have been employed for the identification and quantitative deter mlnation of the epimers of amygdalin.

登录后回答可以获得经验值奖励，并可以查看和管理所有的回答。登录|高效液相色谱法、carbon-13 nuclea 磁场共振电离质谱、化学品与气相层析法，以氢火焰离子化检测被用来识别和定量的威慑 mlnation差向异构体的苦的。

The kinetic equation of polyesterification proposed by Tang is discussed from the view point of the medium effect on the ionization of weak acids, so that the ionization constant, Ke, of the reacting acid would not be a constant during the course of poly-condensation and consequently the 21/z order kinetic equation would not be valid.

从弱酸电离的介貭效应讨论了唐敖庆的聚酯反应动力学方程。由于在缩聚过程中介貭性貭的改变，反应体系中羧酸的电离常数K_e不可能维持恒定，因此二级半动力学方程不能确立。

With increasment ofE/N,electron average energy and probabilities of electric excitation,dissociation,ionization,dissociative ionization collisions are increased.

随着E/N的升高，电子平均能量升高，发生激发、离化、电离和离化电离碰撞的概率增大；非均匀分布的电场使分子获得更高的离化率，同时显著增强出射电子的能量。

The state of the expanding metallic vapor, 2-D temperature, density and ionization in target, is determined by the energy deposit of EB and the ionization rate due to injecting electrons.

其中根据入射电子束的沉积能量及入射电子的电离率等计算随时间变化的靶区二维宏观参数。

From the measured spectrum of He-like Al ions, we observed that the intensities of qr satellites were stronger than that of ijk satellites, and according to these observed satellite features, we have identified that photon ionization and photon excitation have very important effect on the ionization balance of these radiatively heated plasmas.

从测量得到的Al类氦离子发射光谱可以观察到，qr等伴线的强度明显高于ijk伴线的强度，由此可以确定出光子激发和电离过程对输运腔中等离子体的形成不可忽略。

The effects of initial electron density Ni and laser pulse width τ on damage threshold fluence Fth were analyzed respectively. Both the nature of multi-photon ionization and the role of avalanche ionization were also discussed.

研究结果表明，对应于一定的脉宽，存在一个临界初始电子密度，当Ni低于这一临界密度时，Fth不受Ni影响；当Ni高于临界密度时，Fth随Ni增加而降低。

In this paper we address the question of the transition between autoionization that prevails in small molecules, and delayed ionization occurring in larger molecules or clusters. This transition is illustrated by autoionization of Na2 Rydberg states on one hand, delayed ionization in fullerene C60, and delayed detachment in small cluster anions on the other hand.

本文通过Na2的里德堡态的自电离，富勒烯C60的延迟电离，阴离子小团簇的延迟解离研究了在小分子中起主导作用的自电离和在大分子以及团簇中出现的延迟电离之间的转变过程。

In summary, the drive current by Alfvén waves can be enhanced by plasma rotation The negative magnetic shear is favorable for the efficiency of the current drive by Alfvén waves Moreover, in the reversed shear configuration the current drive due to Alfvén waves in an rotation plasma can obviously change the plasma current profile The Alfvén wave current drive may be useful in controlling the current profile in order to suppress magnetohydrodynamic instabilities.

另外，我们还发现负剪切区域愈大，同时安全因子极小值q〓愈小，对阿尔芬波电流驱动愈好。总之，等离子体极向旋转能够增强阿尔芬波电流驱动，负磁剪切对阿尔芬波电流驱动是有利的。另外，反磁剪切位形下旋转等离子体的阿尔芬波电流驱动可以明显改善等离子体电流剖面。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。