Research on constituents of Radix Aconiti and its processing by electrospray ionization trap mass spectrometry Determination of free solanesol in tobacco by liquid chromatography and atmospheric pressure chemical ionization ion trap mass spectrometry 传统中药川乌炮制前后的离子阱质谱研究液相色谱-大气压化学电离离子阱质谱法测定烟草中的游离茄尼醇
The main unideal physical processes of pressure ionization and Coulomb coupling have been examined for their contributions to the pressure internal energy. 它考虑了压强电离和库仑耦合等非理想过程,具有简单和明显的算法优点。
Experimental studies on ammonia synthesis in a strong ionization discharge at ambient pressure 强电离放电合成氨实验研究
An approach to the nonlinearity of ionization vacuum gauge at upper pressure limit 关于电离真空规测量上限非线性的探讨
Dissociation and ionization of air bring on lower drag coefficients of the orbiter than that obtained from perfect gas model, while the location of pressure center moves forward. 空气的离解和电离导致轨道器的阻力系数比完全气体计算值低,压心位置前移。
The intense field of high power microwave causes ionization of neutral particle in atmosphere and the plasma comes into being. The ionization frequency of neutral particle relates to electric field intensity and atmospheric pressure. 高功率微波的强电场与大气作用使空气电离,中性分子的电离频率与等效电场强度、大气压强密切相关。
Activating gas molecules with accelerated electrons was realized by strong-field ionization discharge at atmospheric pressure. 实现高气压(>0.1MPa)条件下强电场电离放电加速电子及激励气体分子。
DL 1 ionization gauge is a high pressure vacuum gauge, it is developed by Radio Electronics Department, Peking University. DL-1型电离真空计是一种高压强真空计,最近由北京大学无线电系研制成功。
A dynamic equation of plasma density is constructed about ionization, recombination, diffusion and plasma flow which is produced by inhomogeneous pressure. 考虑等离子体中存在电离和复合这两种互逆过程及扩散和压力不均匀引起的等离子体流动,建立密度动力学方程。
Beyond the upper limit of the linear region of an ionization gauge, there is a falloff in the ion current with the increase of the measured pressure. 在电离真空规的线性测量上限部分,离子流随着压强上升而衰降。
The spectra excited in a Penning ionization gauge can be used for quick monitoring the pressure in a vacuum system and for leak detection. 它利用检测潘宁放电光谱作为一种快速诊断真空系统质量及检漏的手段。
In this paper, the design of a high performance ionization chamber filled with high pressure argon monitor for environment gamma ray detect is introduced. 本文介绍了一种高性能的高气压氩气电离室环境T射线监测器的设计过程。
Process of ionization and decomposition of N2 and HI and synthesis of ammonia is studied, and reactive system at high pressure is established. 研究了N2、H2分子电离、离解并合成NH3的等离子体反应过程,建立了高气压下合成NH3的等离子体反应系统。
The optimum parameters, such as electron current and voltage for ionization, acceleration voltage, retarding voltage, gas inlet pressure, were determined by experiments. 通过实验确定了最佳参数,其中包括:离化电子电流和电压、加速电压、阻止电势、供气压力等。
OBJECTIVE To establish an HPLC-APCI-MS method for the study of pharmacokinetics and bioavailability of zaleplon by comparing the difference of zaleplon in electrospray ionization and atmospheric pressure chemical ionization mode. 目的:建立测定人血浆中扎来普隆的高效液相色谱-大气压化学离子化-质谱(HPLC-APCI-MS)分析方法,研究扎来普隆口腔崩解片的人体相对生物利用度。
Microwave electron cyclotron resonance ( ECR) plasma has attracted a lot of attention as they can generate uniform plasma on large area with high degree of ionization and high density at low-operating pressure. 近年来,微波电子回旋共振(ECR)等离子体源越来越受到人们的关注,因为它能在低气压下产生高密度、高电离度、大体积均匀的等离子体。