查询词典 radicals

Atom, molecule or radical can be excited to a specific intermediate state by absorbing m laser photons, then the parent ion can be produced by absorption of another n laser photons. The ion yield can be increased drastically due to resonant absorption, comparing with the ion yield in non-resonant absorption. This multiphoton process is usully called Resonance Enhanced Multiphoton Ionization. REMPI technique plays an important role in detecting the high electronic excited states of atoms, molecules and radicals.

原子、分子、离子或自由基在同时吸收m个光子从下态共振跃迁到中间态后再吸收n个光子使其电离的过程中，下态和中间态的多光子共振吸收使得产生的离子信号强度比相应的非共振多光子电离得到的离子信号强度有很大的增强，该过程称为共振增强多光子电离REMPI。

It is concluded that acrolein induces adult mice cardiomyocytes apoptosis, and it may be due to the increased intracellular oxygen free radicals and calcium concentration.

丙烯醛可引起成年小鼠心肌细胞的凋亡，其作用可能是由于细胞内氧自由及钙浓度的增加。

The oxygen consumption with the substrates of succinate in RTT significantly decreased by 34％ as compared with that in control. RTT cybrids produced more oxygen radicals than that of control cybrids as measured by anti-cyano-respiration that reflects the production of oxygen free radicals in mitochondrial respiratory chain. RTT cybrid cell lines demonstrated an increased sensitivity to 〓-induced apoptosis as compared to control cybrids.

以琥珀酸为底物时患儿组融合细胞线粒体呼吸氧耗率显著降低，较正常对照组降低34％；患儿融合细胞线粒体呼吸链氧自由基水平增高，对〓刺激的凋亡易感性增高。

The extracts of water and alcohol were separated by ion exchange resin. The eluates of neutral solution were the most effective against hydroxyl radicals and the highest rate of inhibiting hydroxyl radicals was 81%. The eluates of basic solution were also effective, the inhibit rate of which was 60%.

将发酵灵芝粉的水和醇提取物上离子交换树脂柱，依次用酸性、中性、碱性淋洗液洗脱分组，发现中性洗脱部分对羟基自由基抑制作用最强，抑制率最高可达81％；碱性洗脱部分亦具有抑制羟基自由基的效果；酸性洗脱部分抑制羟基自由基的作用不强，且占很少比例。

The scavenging effect of polyphenols extracted from grape seeds such as monomers, dimers and trimers on superoxide and hydroxyl radicals is studied with the ESR spin trapping method. The results are comparable with those obtained from chemiluminescence method. It has been proved that polyphenols extracted from grape seeds have a strong scavenging effect on Oxygen free radicals. Probably this is the reason why drinking some grape wine every day is good for one's health.

用ESR自旋捕集技术研究了从葡萄籽分离的单体、二聚体和三聚体等多酚类物质对羟基自由基和超氧阴离子的精除作用，并与化学发光法的测定结果进行了比较，得到了较一致的结果，证明葡萄籽中多酚类物质对氧自由基的确有较好的清除作用，这很可能是喝少量葡萄酒有利于身体健康的原因。

The results indicated that reaction of HCN oxidation to NO finished in milliseconds, and radicals were important reactants or resultants of main elemental reactions during oxidation of HCN. Concentration of radicals had important effect on rate and extent of reaction.

计算结果表明，HCN氧化生成燃料型NO的反应在毫秒级时间内完成，占控制地位的基元反应都涉及到自由基，自由基的浓度决定反应的速率和进行程度。

In view of the methods of generating and detecting 〓 radicals, we have built up an experimental set-up of the pulsed dc discharge combined LIF technique, by which we have studied the collisional quenching of electronically excited 〓 radicals by various quenchers.

采用对〓／Ar混合气体脉冲直流放电的方法获得了生成稳定且数密度足够的〓自由基；解决了直流放电过程中产生的其它碎片对〓自由基的LIF信号干扰的问题。2。

Eradicate free radicals gold fights off damaging free radicals to help prevent premature aging of the skin.

消除自由基：黄金可以击退具损伤力的自由基以预防肌肤的老化现象。

Halogen radicals produced by the reaction of hydroxyl radicals with halides, such as HX, may serve as terminators for the chain reaction.

卤素自由基是由羟基自由基与卤化物如HX反应而产生的，它可被用作连锁反应的终止剂。

Free radicals might be related to the pathogenesis of degenerative joint disease. Whether selecting selenium to reverse the cartilage damage by free radicals needs further study on animal experiment.

自由基可能和退形性关节疾病病因有关，是否选择微量元素硒预防及治疗自由基引起的软骨损伤需动物实验的进一步研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。