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191.
192.
研究了高分子凝胶电解质高氯酸锂-碳酸丙烯酯-聚甲基丙烯酸甲酯体系(LiClO4-PC-PMMA)的离子导电性、导电机理以及在电色Smart窗中的应用.其离子电导率与温度的关系服从Vogel-Tammann-Fulcher方程,并与体系的PMMA质量百分数、玻璃化温度(Tg)、碱金属盐的浓度等有关.当LiClO4浓度为0.5mol/L,PMMA=35%时,电解质具有良好的粘附性、光学透明度及较高的室温离子电导率(σ=8.75×10-4S/cm).由其组装成的全固态电色Smart窗具有良好的光谱特性,可见光调制范围为40%~60%;具有良好的光开关特性,响应时间仅为5s. 相似文献
193.
Tunnelling of Two-Level Atoms in Two-Photon Mazer: Atomic Coherence Effect and Statistics of Cavity Fields
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Tunnelling of a two-level atom is investigated in the two-photon mazer when the atom is initially prepared in a coherent superposition state and the cavity in various quantum states. For a strong coherent field, the tunnelling exhibits more regular oscillations but less remarkable switch effect than that in the one-photon mazer. It is discovered that in the presence of atomic coherence, the transmission probabilities in the ultracold regime are significantly different when the cavity field is initially in coherent, squeezed vacuum, even cat and odd cat states, respectively. 相似文献
194.
CHENMeixia LUODongping PENGXu LUOBin 《声学学报:英文版》2004,23(1):45-57
The characteristics of vibration and sound radiation from a double shell with the outer shell coated with viscoelastic layer are systematically studied. The shell‘s motion function is expressed by the classical Fliigge operator and the layer‘s motion function is described by three-dimensional Navier equations, whose displacement solutions are expressed by Taylor expansion along the layer thickness. The continuity conditions of displacement and stress between the shell and the layers are used in obtaining the vibration equations. The effects of layer thickness, modulus of elasticity, the loss factor, and the hydro-compressibility on the structural acoustic characteristic are discussed in detail. It showed that the higher the modulus of elasticity is, or the thinner the thickness of layer is, or the smaller the loss factor is, the higher the sound radiation power is. 相似文献
195.
Rayleigh-Marangoni-Bénard instability in a system of two-layer fluids is studied numerically. The convective instabilities
in the system of Silicon Oil (10cSt) and Fluorinert (FC70) liquids have been analyzed. The critical parameters at onset of
convection are presented in a large range of two-layer depth ratios from 0.2 to 5.0. Numerical results show that the instability
of the two-layer system depends strongly on its depth ratio. When the depth ratio increases, the instability mode changes
from mechanical coupling to thermal coupling. Between these two typical coupling modes, a time-dependent oscillation is detected.
Nevertheless, traveling wave states are found in the case of oscillatory instability. The oscillation mode results from the
competition between Rayleigh instability and Marangoni effect.
The project supported by the National Natural Science Foundation of China (10372105) and the Knowledge Innovation Program
of Chinese Academy of Sciences (KJCX2-SW-L05) 相似文献
196.
PeiZhiGUO DeJunSUN JieZHANG 《中国化学快报》2003,14(9):973-976
The chemical composition, morphology of the particles of positively charged layered double hydroxides (LDHs) were studied by ICP, Mastersizer, TEM. The preliminary results indicated that with adding LDHs to 1% laponite dispersion the yield stress of laponite/LDHs mixed dispersions increased at first, then decreased dramatically to a minimum, and the yield stress rose again when LDHs increased further. 相似文献
197.
基于描述低能离子与原子碰撞的分子库仑过垒模型,详细阐述了与入射离子速度相关的反应窗理论,并对影响势垒变化的平均径向速度做了修正.根据该理论,计算了C5 -He和He2 -He碰撞体系单电子俘获过程的态选择微分截面,并分别与Kamber等人和Mergel等人的实验结果进行了比较. 相似文献
198.
199.
冠醚修饰的固体支撑双层类脂膜的形成及性能研究 总被引:3,自引:1,他引:3
用饱和了胆固醇和饰用冠醚的角鲨烷/氯仿溶液作成膜液,制备了冠醚修饰的固体支撑双层类脂分子膜。重点考察了成膜物种及技术对膜稳定性及电特生影响。其膜电势随接触水相中的变化呈现Nernst响应,线性范围10^-4-10^-1mol/L。 相似文献
200.
不锈钢支撑双层类脂膜离子传感器的电化学研究与应用 总被引:1,自引:0,他引:1
C60;分子器件;不锈钢支撑双层类脂膜离子传感器的电化学研究与应用 相似文献