电离作用

宇宙射线和X射线因其电离作用产生高能电子。

Cosmic rays and X-rays produce energetic electrons by ionization .

H原子在决定多孔硅的导电性能中起了很大的决定作用，主要原因是使杂质电离作用大大减弱。

H - atomic mainly decides the PS conductivity , because H - atomic greatly reduces the impurity ionization .

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 .

3-氨基喹啉基体在MALDI-TOF／MS分析中对环状多糖分子的特殊解吸电离作用

The Special Desorption-ionization Effect of 3-aminoquinoline Matrix on the Cyclic Polysaccharide Molecules in MALDI-TOF / MS

地球的高层大气中到处都在迅速地发生电离作用。

Wide-spred ionization occurs readily in the earth 's upper atmosphere .

GB/T10065-1988绝缘液体在电应力和电离作用下的析气性测定方法

Gassing of insulating liquids under electrical stress and ionization

二次电子的电离作用；

The ionization of gas molecules by secondary electrons ;

通过使钚或铀同位素裂变，中于也能产生间接的电离作用。

Indirect ionization by neutrons can also result from fission of plutonium or uranium isotopes .

上层大气中的电离作用是太阳的紫外线引起的。

The ionization in the upper atmosphere is caused by ultraviolet rays form the sun .

因为中子没有电荷，所以它们在经过气体的通路上不产生电离作用。

Since neutrons have no charge , they produce no ionization in their passage through gases .

慢中子和中能中子可以通过其它方式产生间接电离作用。

Neutrons in the slow and moderate speed ranges can produce ionization indirectly in other ways .

电离作用增加传导性。

Ionizing event increases conductivity .

模型的建立和计算程序考虑了燃气的分解与电离作用，程序实现了对实验数据的拟合。

The decompose and ionization of combustion gas was taken into account in the established model and computer program .

气球中存放空气的包。含空气杂质大气压氦气介质阻挡放电中彭宁电离作用

The bag containing the gas in a balloon . Investigation of Penning Ionization in Atmospheric Helium Dielectric Barrier Discharges With Air Impurity

氦亚稳态原子与空气之间的潘宁电离作用促进了电离反应，加快了射流的传播速度。

The Penning ionization between metastable helium atoms and air molecules facilitates the volume ionization and accelerates the propagation of the plasma jets .

放疗的主要机制是通过放射线对肿瘤的电离作用，直接或间接诱发自由基、活性氧来杀伤肿瘤细胞。

The mechanism of radiotherapy is its ionization action , which can kill the tumor cell directly or indirectly by generation of free radicals , reactive oxygen species to cure the disease .

高能电子多，在放电空间中电离作用显著，电子和离子密度非常高。

Because of the numerous electrons with high energy , the ionization in the discharge area is in the discharge area is intensity , and electron and the ion are very dense in discharge area .

从激光特性、光的波粒二象性出发，分析了激光对含能材料的热作用、冲击作用、光化学作用、电离作用等，并做了相应的计算。

Starting from the laser features and wave-particle , the effects of laser upon energetic materials like thermal effect , impacting effect , photochemical effect and ionization were analyzed , and the corresponding calculations were performed .

本文指出：真空电弧蒸发源中热电子对电离作用通常占统治地位，等离子体近似处于局部热平衡状态。

Abstract This paper has indicated that the ionization by the thermal electron is frequently the dominating mechanism in vacumm arc evaporation source , that the plasma of vacumm arc is approximately local thermal equilibrium ( LTE ) .

重离子注入与电离辐射作用下小麦种胚内非按期DNA合成的比较

The comparison of unscheduled DNA synthesis in germinating wheat embryos treated by fe1 + ions implantation and 60Co γ - rays irradiation

收集板上的正、负电压信号分别由激光烧蚀金属Cu产生离子和电子发射而引起，高能电子对环境气体具有碰撞电离的作用。

Electron launching resulted in positive voltage signal of collector plate , and ion launching resulted in negative voltage signal of collector plate .

基于建立的模拟方法，系统地模拟计算了计及亚电离电子作用的低能电子诱导DNA碱基损伤、DNA链断裂及相应的簇损伤。

Based on the approach presented in this chapter , base damages , DNA strand breaks and corresponding clustered DNA damages induced by low-energy electrons including sub-ionization electrons are systematically simulated .

目的：检测电离辐射作用后大肠癌多药耐药细胞蛋白激酶C（PKC）的表达和观察蛋白激酶C在多药耐药发生发展中的作用。

Objective To detect the expression of protein kinase C ( PKC ) in multidrug resistant cells of colorectal carcinoma after ionizing irradiation and observe the effect of PKC on occurrence and development of the multidrug resistant .

电离辐射作用于机体可诱发大量自由基产生，而自由基作用于DNA、RNA等生物大分子，可致使其结构改变和生物活性丧失，从而造成机体发生氧化损伤。

Ionizing radiation can induce the organism to produce a lot of free radicals . Free radicals may cause structural changes and loss of biological activity of biological macromolecules such as DNA , RNA , resulting in the occurrence of oxidative damage .

在强电离电场作用下，利用H2O和O2制成高浓度羟基溶液，处理压载水取得明显效果。

High concentration of hydroxyl radical is produced from H_2O and O_2 by the charge transfer in the strong electric field , by which the effect of treating ballast water is obvious .

在医学上EMT抗噪性能好，对病人无电离辐射作用，无漏电，具有更好的无创性，并且造价低。

The EMT have the features of strong ability of anti-noise , no action of ionizing radiation , no leakage current , non-invasive and low cost on medically .

目的研究酪氨酸磷酸酶抑制剂过钒酸钠（Pervanadate，Per）对电离辐射作用后细胞线粒体膜电位（ΔΨm）改变和细胞凋亡的影响。

Objective To study the effects of pervanadate ( Per ), the inhibitor of protein tyrosine phosphotases on the alterations of mitochondrial membrane potential ( MMP ) and the apoptosis of BET-2 cells induced by ionizing irradiation .

着重用ESR方法研究了无机氧化物在电离辐射作用下的变化特点以及引发活性中心的性质，初步探讨了无机氧化物-有机单体的辐射接枝机制。

We focus our attention on using ESR spectrum to study the specialities in ionizing radiation of inorganic oxides and the properties of initiating active centers . In addition , the radiation grafting mechanism of inorganic oxides and organic monomers has been primarily investigated .

结论LAMP-1参与电离辐射作用下免疫信号的传导，高剂量X射线抑制它的表达，而低剂量X射线在早期对其表达有促进作用，与体内免疫细胞的活性密切相关。

Conclusions LAMP-1 plays a role in the transduction of immune signals induced by ionizing radiation and is closely correlated with the activity of immune cells . The high dose irradiation inhibits the LAMP-1 expression while the low dose likely causes the opposite biological effect in the early time .

电离辐射作用后粒－巨噬细胞修复的特性

Recovery characteristics of mice granulocyte - macrophage progenitor cells from irradiation