منابع مشابه
a study on construction of iranian life tables: the case study of modified brass logit system
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15 صفحه اولMolecular Dynamics Study of the Glass Transition in Confined Water
A molecular dynamics simulation of SPC/E water confined in a Silica pore is presented. The pore has been constructed to reproduce the average properties of a pore of Vycor glass. Due to the confinement and to the presence of a strong hydrophilic surface, the dynamic behaviour of the liquid appears to be strongly dependent on the hydration level. The approach to the glass transition of confined ...
متن کاملXenon NMR of liquid crystals confined to cylindrical nanocavities: a simulation study.
Applications of liquid crystals (LCs), such as smart windows and the ubiquitous display devices, are based on controlling the orientational and translational order in a small volume of LC medium. Hence, understanding the effects of confinement to the liquid crystal phase behaviour is essential. The NMR shielding of (129)Xe atoms dissolved in LCs constitutes a very sensitive probe to the details...
متن کاملXenon NMR Study of a Nematic Liquid Crystal Confined to Cylindrical Submicron Cavities
NMR studies of xenon gas dissolved in the liquid crystal ZLI 1132 confined to submicron cylindrical cavities are reported. Spectra taken as a function of temperature yield a clear indication of the nematic to isotropic phase transition of the confined liquid crystals. In the nematic phase at 21 "C, the resonance line of dissolved 129Xe exhibits a chemical shift anisotropy of 15 ppm due to a ran...
متن کاملNMR studies on the temperature-dependent dynamics of confined water.
We use (2)H NMR to study the rotational motion of supercooled water in silica pores of various diameters, specifically, in the MCM-41 materials C10, C12, and C14. Combination of spin-lattice relaxation, line-shape, and stimulated-echo analyses allows us to determine correlation times in very broad time and temperature ranges. For the studied pore diameters, 2.1-2.9 nm, we find two crossovers in...
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ژورنال
عنوان ژورنال: Oleoscience
سال: 2014
ISSN: 1345-8949,2187-3461
DOI: 10.5650/oleoscience.14.253