查询词典 quenching

The effects of pH on the protein fluorescence quenching after interaction with NAR were studied to find that the active functional group in neutral state played key role in the binding process.

研究了不同pH值条件下药物对蛋白质荧光猝灭的影响，发现药物分子中的没有解离的活性基团在结合过程中发挥着主导作用。

The selective quenching by Hg2+ of the fluorescence of compound 1 was rationalized in terms of the formation of a nonfluorescent Hg2+-1 complex with enhanced intramolecular charge transfer compared to compound 1 itself.

基于等摩尔连续变化法、红外光谱和核磁滴定实验结果提出了传感分子1与Hg2+的1∶1型结合模式，其中1-位S原子和2-位胺N原子为Hg2+配位原子；结合光谱变化讨论了Hg2+结合显著增强分子内电荷转移的荧光猝灭机理。

Photodissociation spectroscopy of the complexes Mg~+-NCSCH_3 Mg~+-S_2(CH_3_2 in the spectral region of 230-440nm was oberserved. As to Mg~+-NCSCH_3 of photo-induced reaction, there were three channels. And there are the products Mg~+ from nonreaction quenching and reactive products Mg~+NC, Mg~+NCS in the reaction throughout the whole wavelength range.

观察了复合物Mg~+-NCSCH_3Mg~+-S_2(CH_3_2在230～440nm范围的光解离光谱，在此波段内的复合物光诱导产物的质谱显示，对Mg~+-NCSCH_3：光诱导反应有三个通道，存在着非反应猝灭产物Mg~+和反应产物Mg~+NC、Mg~+NCS。

Mass spectra of the products of photo-induced reaction of the complexes Mg(superscript +)-NCSCH3 and Ca(superscript +)-NCSCH3 exhibits the presence of Mg(superscript +)Ca(superscript + from nonreaction quenching, Mg(superscript +)Ca(superscript +NC and MgCa(superscript +NCS from the rupture of S-C bonds, and rearrangement products Mg(superscript +) Ca(superscript +-CHSH.

复合物Mg-NCSCH3，Ca-NCSCH3光诱导反应的产物质谱表明有非反应猝灭产物MgCa(上标+，C-S键断裂产物Mg Ca(上标+NC和MgCa(上标+-NCS以及重排反应产物MgCa(上标+-CHSH通道。

Although DNA of high concentration might give rise to the quenching of IgG fluoresence, DNA of low concentration had but little effat on the nounal IgG fluormence.

DNA时IgG空间结构影响很小，虽然高浓度的DNA有熄灭IgG分子萤光的作用，但是低浓度DNA对正常人血清IgG的萤光几乎没有影响。

The characteristics and process features of Italy NOY PET/PA fine denier yarn spinning equipment were introduced. The difference in chip drying, transferring and spinning system was emphasized in contrast to normal equipment. The requirement for process parameters such as chip drying, spinning temperature and velocity and quenching conditions etc.

介绍意大利 NOY工程公司配置的涤纶两用细旦纺丝机的设备特征及工艺特点，着重指出了该设备在切片干燥、输送和纺丝系统上与常规设备的差异，并结合生产实例对涤纶细旦纺丝在切片干燥、纺丝温度、纺丝速度和侧吹风条件等工艺上的要求作了探讨。

The fluorescence quenching of aromatic oxazole derivatives by CCl4 in different solvents was studied.

本工作对唑类化合物在不同溶剂中的荧光被四氯化碳的猝灭问题进行了研究。

Additionally, Pb-pheophytin was non-fluorescent and could result in the fluorescence intensity quenching of pheophytin.

通过光度动力学测定，分别求得铅与脱镁叶绿素a、脱镁叶绿素b和13〓-羟基脱镁叶绿素a的反应速率常数为2.0、0.78和1.86mol〓 ls〓。

Correlation coefficient: 0.9962 . Positively charged'free'complex ions should be readily quenched by 〓, but when it is bound to DNA, it can be protected from the quencher because the highly negatively charged 〓 would be repelled by the negative DNA phosphated backbone, hindering quenching of the emission of the bound complex.

从理论上讲，带正电的配合物的阳离子应该可以被大阴离子淬灭，但是在DNA存在下，金属配合物插入到DNA的碱基对中，而〓被带负电荷的DNA磷酸骨架强烈排斥，从而避免了〓的淬灭，因此大的Stern-Volmer曲线斜率相应于对配合物较弱的保护形式。D。

The causes of extreme distortion of large gear shaft after carburizing and quenching were analyzed,and the distortion-controlling measure such as make preallowance and adopt autempering process are proposed.

分析了大齿轮轴渗碳淬火后齿面产生较大畸变的原因，找出了适合预留收缩余量和等温淬火工艺，解决了大齿轮轴的热处理畸变。

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。