由于分子很容易被电离,通过纳米孔的电压落差有助于牵引dna穿过微孔。
Since the molecule is easily ionized, voltage drops across the nanopore help "pull" the DNA through.
它主要由电离氢分子和氦构成,同时还包括碳、氧、氮和其他原子,使得其呈现纷繁的混合色彩。
It is mostly made of ionized hydrogen and helium, though carbon, oxygen, nitrogen and other atoms are present, producing the complex color blend visible here.
手机产生“非电离”辐射,它不像X或伽马射线那样从细胞组织中的分子里分理出电子,从而破坏dna。
Cell phones produce "non-ionizing" radiation, which, unlike X - or gamma rays, doesn't damage DNA by stripping away electrons from molecules in cell tissue.
在来自星云中心蓝巨星紫外线辐射的压力下,这些由气体和尘埃组成的恒星形成区域尖端的电离氢分子将不复存在。
Ionized molecular hydrogen can be seen evaporating from the tips of these star-forming columns of gas and dust, under pressure of ultraviolet light from the nebula's central blue giant stars.
从分子水平来看,电离辐射对生物体的损伤主要是由于电离辐射引起了生物细胞内DNA分子的损伤。
On a molecular level these effects to the organism are caused mainly by the damage induced by the ionizing radiation to the DNA of the living cell.
通过多步谐振光电离技术可以实现对原子(或分子)选择性的电离。
Selectively ionizing atoms (or molecule) can be easily performed by means of a multistep resonance photoionization technique.
本文介绍了一种用基本辅助激光解吸电离质谱法快速测定蛋清中溶菌酶相对分子质量的方法。
A method for rapid determination of molecular weight of lysozyme from chiken egg white by matrix-assisted laser desorption ionization mass spectrometry was represented in this paper.
电离电势(亦称电离能):从孤立原子或分子中移去一个电子所需要的能量。
Ionization potential (ionization energy) : Amount of energy required to remove an electron from an isolated atom or molecule.
利用X射线对气体分子的电离作用,在一定电压下用一束X射线照射真空灭弧室,使灭弧室内产生电离电流。
The remainder molecules in the vacuum tube will be ionized by X-ray irradiation, the ionization current can be detected at a constant DC voltage.
指出负离子解吸化学电离质谱对鉴别低碳醣的分子离子可以提供十分有用的信息。
It pointed out that the negative ion DCIMS can provide very useful information for characterizing molecular ion of monosaccharides.
本文利用探针取样法结合同步辐射真空紫外光电离和分子束质谱技术研究了常压下的乙烯扩散火焰。
An ethylene diffusion flame has been investigated at normal pressure using synchrotron vacuum ultraviolet (VUV) photoionization and molecular-beam mass spectrometry.
采用离散变量表示(DVR)方案研究了双原子分子在强场下的多光子电离光电子能谱,得到了与实验相同的结果。
The discrete variable representation(DVR) scheme is applied to investigate the photoelectron spectrum(PES) of multiphoton ionization for some diatomic molecules in strong fields.
利用强激光场电离和离解分子来研究分子激发态的波包结构是强场物理的重要研究方向。
The studies of the wavelet structures of the molecular excitations with the high intense laser are very active in the strong laser field physics.
利用该装置测量了一氧化碳分子的光电离效率曲线及其离子碎片的部分光学振子强度密度。
The photoionization efficiency curve and the partial optical oscillator strength densities for different fragments of CO was determined by this work.
从理论上研究了N_2和CO分子在双激光脉冲场中的准直电离以及分子几何学准直的具体机制。
We study dynamic alignment and alignment dependent ionization probabilities of N_2 and CO molecules in a double-pulse laser field, and the origin of molecular geometric alignment.
阴离子型聚电解质在极性溶剂中会发生电离,导致大分子链上带有大量的净负电荷。
Anionic polyelectrolytes can ionize in polar solvent, forming macromolecule chains with lots of anionic charge.
所得到的NO分子与氧原子的离子谱及它们的离子信号对no2分子光解及NO分子与氧原子的电离动力学研究提供了有益的实验信息。
The obtained ion spectra of NO molecule and atom oxygen are very useful experimental information for research of the NO2 photodissociation and NO molecule atom oxygen ionization dynamics.
在高分子网络链上嵌有可电离的离子对,遇水形成离子网络。
Polymer chains making up the network cantain ionizable group and mobile electrolyte ions.
从离子碎裂反应机理的角度,分析了火焰中样品分子裂解和电离的可能机理,并总结出可能影响电离效率的相关因素。
The possible mechanism of split and ionization of sample molecules in flame is analyzed from the view point of fragmentation reaction.
CMC由长且刚性的分子组成,由于大量电离的羧基,这种刚性分子存在负电荷。
Since CMC consists of long, fairly rigid molecules that bear a negative charge due to numerous ionized carboxyl groups, electrostatic repulsion causes its molecules in solution to be extended.
实验表明,共振增强多光子电离加飞行时间技术研究原子、分子光谱其灵敏度与分辨率远高于常用的激光感生荧光方法。
The experimental result shows, the resolution and sensitivity of REMPI and TOF mass spectrometer technique is higher that of laser induced fluorescence method (LIF).
微波炉使用的放射物是不电离的,也就是说,它并不能改变我们人体的分子结构。
The radiation used in microwaves is non-ionizing, meaning that it can't really change the molecular structure of our bodies.
我们的实验是利用飞行时间质谱仪在激光作用下研究苯甲醚的多光子电离质谱能够得到苯甲醚分子的解离通道及机理。
We study the dissociation channel and mechanism of anisole in the experiment using the time of flight mass spectrometer with the interaction of laser.
结果表明,以碳酸钙为代表的电离度较小的分子钙,其电离产生的钙离子对体系的稳定性影响相对较小。
The results indicated: the degree of ionization of CaCO3 is small relatively, so the influence of calcium ions on the stability of high calcium milk is not obvious.
利用经典理论采用辛算法计算了一维氢分子在超短强激光脉冲作用下的存活、电离、解离和库仑爆炸的动力学行为。
The survival, ionization, dissociation and coulomb explode dynamics of a one-dimensional model of molecular hydrogen H2 under intense ultrashort laser pulses were classically simulated.
激光多光子电离技术是一种较为简便的研究分子光谱结构及其与光相互作用的方法。
Laser multi-photon ionization technique is a relatively simple method to obtain molecular structure and research the interaction between laser and the matter.
另外还从多个角度对硫化氢分子的多光子电离解离(MPID)机理进行了分析,推论出其MPID过程应属于母体离子碎裂模式。
In addition, we have analyzed the multiphoton ionization dissociation(MPID) mechanism of H 2S from several aspects, and conclude that its MPID process belongs to parent ion fragmentation mechanism.
另外还从多个角度对硫化氢分子的多光子电离解离(MPID)机理进行了分析,推论出其MPID过程应属于母体离子碎裂模式。
In addition, we have analyzed the multiphoton ionization dissociation(MPID) mechanism of H 2S from several aspects, and conclude that its MPID process belongs to parent ion fragmentation mechanism.
应用推荐