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旋转相关时间
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  rotational correlation time
    Furthermore, the rotational correlation time r, the heights of the upfield EPR lines were found to be linearly correlated with the solvent viscosity η.
    以及自由基旋转相关时间τ、高场峰相对高度h_r与溶剂粘度η值之间也呈线性关系.
短句来源
    The isotropic nitrogen hyperfine coupling constants α_N and the rotational correlation time τ_c of the radicals change regularly after complexing with β-CD and 2-HP-β-CD.
    结果表明,自由基与环糊精及其衍生物作用后,其超精细分裂常数αN值及旋转相关时间τC都有规律性变化.
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  “旋转相关时间”译为未确定词的双语例句
    We got the similar conclusion when used the denaturalization of heating, we denaturalized the protein in the range of 65°C to 85°C, via the study of ESR found when temperature increased τ_c decreased, the inner configuration of protein has loosed, copper broken away from protein center.
    用热变性得到的结论与此类似,在65℃~85℃范围内进行热变性,通过ESR的研究,发现其旋转相关时间τ_c随着温度的增加而降低,蛋白内部结构松散,铜离子脱离蛋白内部。
短句来源
    The slow tumbling motion of a spin labelled SBS block copolymer was investi-gated by the saturation transfer ESR (ST-ESR). Motions pertaining to the rota-tional correlation time from 10~(-6) to 10~(-5)S were observed in the temperature rangefrom -70℃ to -20℃, and thereby the parameter T_R ascertained by ESR.
    利用饱和转移电子自旋共振、ST-ESR)方法研究自旋标记苯乙烯一丁二烯一苯乙烯嵌段共聚物(SBS)的慢速翻滚运动,在-70~-20℃的温度范围内,观察到旋转相关时间τ_o从10~(-6)到10~(-5)S的运动,并求得相应的活化能。
短句来源
    This research used a new method—ESR to study the configuration of azurin, spinned the spin label 3-maleido-proxyl to the -SH- of azurin specifically, according to the change of τ_c in the spectrum of ESR to embody the alter of inner configuration of protein.
    我们采用新的方法—电子顺磁共振方法对azurin进行内部构象的探索,用自旋标记物与天青蛋白进行特异性标记,在ESR波谱上通过标记物的旋转相关时间τ_c的变化来体现蛋白内部构象的变化。
短句来源
    In the case of using guanidine HC1 denaturalize, with the increase of guanidine concentration, the τ_ c of spin label decreased, this indicate that the inner stereo-structure of protein has loosen, and the configuration has relax.
    温度降低,分子内部驰豫行为降低。 在用盐酸胍变性的情况下,随着盐酸胍浓度的增加,旋转相关时间τ_c逐渐降低,可见蛋白内部的立体结构松散,构象已经松弛。
短句来源
    The wide and the narrow spectra vary sharply in their intensities and rotational correlation times with the stretching and relaxation processes.
    在拉伸和松弛过程中,宽谱线和窄谱线的相对强度和旋转相关时间也随着发生变化。
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  rotational correlation time
A share of membrane-bound spin probe was different for chloroplasts and subchloroplast fragments, as well as its rotational correlation time and apparent enthalpy and entropy activation of nitroxide rotational motion.
      
However, the rotational correlation time τ for spin-labeled Bs and its complex with Bn in solution corresponded precisely to their molecular weights.
      
The rotational correlation time of fulleropyrrolineoxyl was found to be about eight times longer than that of 4-oxy-2,2,6,6-tetramethylpiperidine-1-oxyl.
      
The rotational correlation time, τc, of the spin label tempamine has been used for a comparative study of internal microviscosity in normal and in homozygous β-thalassemic erythrocytes.
      
The effective rotational correlation time, σc, of the spin label 5-SASL results about one order of magnitude higher in the presence of 60 mitogen molecules/vesicle.
      
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The changes of cell membrane properties after carcinogenesis are important subjects. This paper reports the differences between the properties of HEP.A22 mouse ascites cell membrane lipids and those of the control cells. Two types of fatty acid spin labels Ⅰ(12,3) and Ⅰ(1,14) were used and the order parameters, rotational correlation times and half amplitude angle of wobbling for lipiid were determined. Arrhenius plots in range from 0℃ to 50℃ for both cells were done simultaneously. It was found that the order...

The changes of cell membrane properties after carcinogenesis are important subjects. This paper reports the differences between the properties of HEP.A22 mouse ascites cell membrane lipids and those of the control cells. Two types of fatty acid spin labels Ⅰ(12,3) and Ⅰ(1,14) were used and the order parameters, rotational correlation times and half amplitude angle of wobbling for lipiid were determined. Arrhenius plots in range from 0℃ to 50℃ for both cells were done simultaneously. It was found that the order parameters of the cancer cell membraneare larger than those of the normal cell, but the wobbling half aplitude angle of fatty acid chain of cancer cell membrane is smaller than that of the normal cell in the depth of membrane; on the contrary at the surface of the membrane, the case is just the opposite. From the Arrhenius plots it was found that the phase transition temperature of the cancer and control cell membrane lipids are 18℃ and 30℃ respectively at the surface of the membrane, but in the depth of the membrane, the phase transition point is not found in range 0°—50℃ for both cancer and normal cells.

本工作用自旋标记ESR波谱方法研究了HEP.A22鼠腹水肝癌细胞和鼠正常肝细胞膜脂的运动性。采用两种脂肪酸类自旋标记化合物I(12,3)和I(1,14)。在0°—50℃的范围内,每隔5度记录ESR谱。测量了膜脂的旋转相关时间、序参数和摆动半幅度角,并计算了旋转活化能和相转变温度。结果表明:(1) 对癌细胞,其表层膜脂的流动性比正常细胞大,但在膜的深层,则结果相反;(2) 细胞癌变后,其动力学性质亦发生明显改变。在膜表层,癌细胞膜脂的相转变温度为~18℃,正常细胞为~30℃;而在膜的深层,正常细胞的Arrhenius作图表现为一直线,没有观察到转折点;对腹水肝癌细胞,Arrhenius作图不是一条直线,但不排斥多于一个转折点的可能性。

The slow tumbling motion of a spin labelled SBS block copolymer was investi-gated by the saturation transfer ESR (ST-ESR). Motions pertaining to the rota-tional correlation time from 10~(-6) to 10~(-5)S were observed in the temperature rangefrom -70℃ to -20℃, and thereby the parameter T_R ascertained by ESR. A briefdiscussion was made on the nature of the segmental motion of this block copolymer.

利用饱和转移电子自旋共振、ST-ESR)方法研究自旋标记苯乙烯一丁二烯一苯乙烯嵌段共聚物(SBS)的慢速翻滚运动,在-70~-20℃的温度范围内,观察到旋转相关时间τ_o从10~(-6)到10~(-5)S的运动,并求得相应的活化能。又用电子自旋共振(ESR)方法测定了T_R参数,同时讨论了嵌段共聚物链段运动的特征。

The ESR spectrum of the hard elastic polypropylene fiber sample containing the stable nitroxide radicals 8NS (N-oxy-4, 4-dimethyloxazolidine derivative of ethyl 8-ketopalimate) is composed of two parts within a wide temperature range. The wide and the narrow spectra vary sharply in their intensities and rotational correlation times with the stretching and relaxation processes. The wide spectrum reflects the information of mobility and orientation of the chain segments while the narrow one reflects the information...

The ESR spectrum of the hard elastic polypropylene fiber sample containing the stable nitroxide radicals 8NS (N-oxy-4, 4-dimethyloxazolidine derivative of ethyl 8-ketopalimate) is composed of two parts within a wide temperature range. The wide and the narrow spectra vary sharply in their intensities and rotational correlation times with the stretching and relaxation processes. The wide spectrum reflects the information of mobility and orientation of the chain segments while the narrow one reflects the information on pore existed.

含有脂肪酸氮氧自由基8 NS的硬弹性聚丙烯纤维,其ESR谱在较宽的温度范围里同时包含有宽谱线和窄谱线两个部分。在拉伸和松弛过程中,宽谱线和窄谱线的相对强度和旋转相关时间也随着发生变化。宽谱线反映了链段运动、取向的信息,窄谱线反映了微孔生成与消失的信息。

 
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