查询词典 Pulse

In this study, in utero transfection plasmid DNA method was set up to embryonic mouse. The GFP expression vector pCAGGS-IRES-EGFP was microinjected into the lateral cerebral ventricle of E 14.5d mouse embryos through the uterine wall. Then, the 30 V square-wave pulse was delivered across the head for 5 times and interval 50m sec by electrodes in parallel with the median raphes.

本研究旨在通过子宫内电穿孔法，建立鼠胚大脑皮层体内基因转移体系：将带有绿色荧光蛋白的表达载体pCAGGS-IRES-EGFP显微注入胚胎期14.5 d的鼠胚侧脑室中，电极沿与脑中缝平行的方向夹持鼠脑，在电压30 V，脉冲时间50 ms，脉冲数5的条件下方波电击，将外源基因转移到室管膜层细胞。

Based on the objective lens and voice coil motor of the current DVD pickup head,according to photobleaching three-dimensional (3D) optical information storage's theory of two-photon absorption,the Ti∶sapphire femtosecond pulse laser was used as written optical beam and reading optical beam of two-photon three-dimensional optical storage voice coil motor was carried through multiplayer choice, and the storage and readout experimental study of binary format code with two-photon photobleaching in the new photobleaching material consisting of stilbene derivant was conducted.

基于现有的DVD光头物镜与音圈电机，根据光致漂白的双光子吸收三维光信息存储原理，以钛蓝宝石飞秒脉冲激光进行双光子光信息写入和读出，利用音圈电机进行选层，在新型光致漂白材料二苯乙烯衍生物中进行光致漂白二进制编码信息的存储和读出实验研究；实现了三层光信息存储，信息点间距和信息层间距分别为4 μm和15 μm；用Matlab软件读出信息的信号强度并对其进行了识别，识别结果与写入的二进制编码信息完全一致。

Electron transfer reaction between the radical cations of purine nucleotides and some aromatic amino acids was studied by use of pulse radiolytic techniques. Time-resolved spectroscopic evidence revealed that the one-electron-oxidized radicals of dAMP and dGMP can be efficiently repaired by tyrosine and tryptophan.

鉴于在DNA光敏损伤过程中主要生成嘌呤碱基阳离子自由基，利用脉冲辐解技术研究了嘌呤碱基阳离子自由基与部分芳香氨基酸的相互作用，获得了酪氨酸和色氨酸对单电子氧化的dAMP和dGMP经快速电子转移修复的瞬态吸收光谱证据。

The results prove that in pulse radiolysis experiments a Cu intermediate may also be involved and will give a clue to the mechanism of toxicity of 〓.

该结果为配合物在歧化〓的过程中被氧化成Cu提供了证明，并且为〓在生物体内的毒害来自于其氧化性提供了新的佐证。

In this chapter, the structural role of STS during its redox cycling was studied with pulse radiolysis combined with ESR and spectrophotometric technique.

本章以脉冲辐解结合分光光度法和ESR技术研究了丹参酮ⅡA磺酸钠在氧化还原过程中结构变化的规律。

In model of aromatic amino acids and the simple peptides with aromatic amino acid, intramolecular electron transfer was studied almost with pulse radiolysis technique.

含芳香氨基酸残基的简单肽和蛋白质模型中，研究分子内肽链电子转移一般采用脉冲辐解的研究方法。

Time-resolved pulse radiolysis has been used to study the reactions of etoposide (VP16) with N~3^.,~2^.

首次用脉冲辐解时间分辨方法研究了etoposide(VP16)在水溶液中与N~3^。，~2^。

The results are compared to those of pulse radiolysis. A detail oxidation mechanism of sulphur containing amino acids was proposed. The structure of amino acid and peptide influence information of three electron bond was suggested.

首次在中性介质中观察到反应过程中生成了三种含硫三电子键自由基中间体，〓、〓和，测定了动力学常数，分析了反应机理，讨论了肽分子结构对三电子键形成的影响。

Using acetone as a photosensitizer,and N3· as an oxidant by pulse radiolysis method,the induced oxidation of cyclic-Phe-His in aqueous solution has been also reported in this paper,results similar to the photoionization of cyclic-Phe-His have been found.

而具有亲电子性的丙酮能在该环肽的苯丙氨酸残基的苯环上抽取电子，形成320nm和410nm的特征吸收峰，求出了自由基的有关动力学参数，并用脉冲辐解动态吸收光谱法印证了上述结果。

In the present studies, the laser flash photolysis and the pulse radiolysis techniques have been first introduced into occupational medicine field of free radical research, and the biophysical chemistry techniques have been used to supply the theoretical basis of oxidative-antioxidative defense system disorders caused by 〓 on molecule level.

本研究首次在自由基职业医学领域引进激光光解和脉冲幅解研究技术，应用生物物理化学研究手段为〓致机体抗氧化防御体系平衡紊乱机理提供了分子水平的理论依据。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。