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Figures 12, 13 and 14 in Exel file format

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Figshare2025-06-11 更新2026-04-28 收录
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https://figshare.com/articles/dataset/Figures_12_13_and_14_in_Exel_file_format/29281709
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Figure 12, Figure 13, and Figure 14 show selected imaginary and real part capacitance spectra (graphs a and b, respectively) recorded over the freezing period for the TVIS vial containing 5% sucrose , 5% sucrose and 0.26% NaCl, and 5% sucrose and 0.55% NaCl. The right side shows the derived parameters of the log of the peak frequency (graph c) and the peak amplitude (graph d) for the principle relaxation peak observed in the imaginary capacitance spectra, i.e.,Maxwell-Wagner process (MW) for the 5% sucrose solution (low conductivity).Interfacial capacitance (IC) for the 5% sucrose solutions with 0.26% and 0.55% solutions (high conductivity).Dielectric relaxation of ice for the frozen state of all three solutions.The right side of Figure 12, Figure 13, and Figure 14 also show the derived parameters of the real capacitance at low and high frequency, given the symbols(10 Hz) and(0.2 MHz), respectively (graphs e and f, respectively). Overlayed on these profiles are the arrows pointing from left to right which have been drawn to indicate/highlight the differences in the temperature dependencies of the real part capacitance in the limits of low and high frequency.The period marked TP is the transition period in which either of the two conditions apply: (i) the peaks of any of the processes are no longer visible within the experimental frequency region of the TVIS instrument, or (ii) the peak observed is a hybrid of multiple processes, for example a peak that comprises contributions from the MW relaxation and from the dielectric relaxation of ice.The other Excel files give a comprehensive set of data, for all three samples, 5% w/v sucrose (with 0% w/vNaCl), 5% w/v sucrose (with 0.26% w/v NaCl), and 5% w/v sucrose (with 0.55% w/v NaCl), to support figures 12, 13, and 14

图12、图13与图14展示了三组TVIS样品瓶在冷冻过程中记录的选取虚部与实部电容谱(分别对应图a与图b),三组样品分别为含5%蔗糖的体系、含5%蔗糖与0.26%氯化钠的体系,以及含5%蔗糖与0.55%氯化钠的体系。右侧展示了虚部电容谱中观测到的主弛豫峰的两类衍生参数——峰值频率的对数(图c)与峰值振幅(图d):其中针对低电导率的5%蔗糖溶液,该弛豫过程为麦克斯韦-瓦格纳弛豫过程(Maxwell-Wagner process,MW);针对含0.26%与0.55%氯化钠的高电导率5%蔗糖溶液,该参数对应界面电容(Interfacial Capacitance,IC);此外还涵盖了三种溶液冷冻态下的冰介电弛豫数据。图12、13、14的右侧同时展示了低频与高频下的实部电容衍生参数,分别以符号(10 Hz)与(0.2 MHz)标注,对应图e与图f。此类曲线中叠加了从左至右的箭头,用以突出显示低、高频极限下实部电容的温度依赖性差异。标记为TP的区间为转变区间,满足以下任一条件:(i) TVIS仪器的实验频率范围内无法观测到任一过程的弛豫峰;(ii) 观测到的峰为多种过程的叠加峰,例如同时包含MW弛豫与冰介电弛豫贡献的复合峰。其余Excel文件提供了涵盖全部三个样品的完整数据集,分别为5%质量体积百分比(w/v)蔗糖溶液(含0% w/v氯化钠)、5% w/v蔗糖溶液(含0.26% w/v氯化钠)、5% w/v蔗糖溶液(含0.55% w/v氯化钠),用以支撑图12、13、14的绘制。
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2025-06-11
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