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含液晶基团的冠醚LB膜研究 总被引:3,自引:1,他引:3
合成了含有联苯介晶基团的长链冠醚,并首次制成含液晶基团的冠醚LB膜,由LB膜的荧光光谱研究发现,与其单体在CHCl_3稀溶液中的荧光光谱相比,LB膜的荧光光谱向长波方向移动,表明分子均以缔结状态存在,XRD结果表明,LB膜具有良好的有序结构,单分子膜厚2.6nm。 相似文献
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Verification of Energetic-Particle-Induced Geodesic Acoustic Mode in Gyrokinetic Particle Simulations
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The energetic-particle-induced geodesic acoustic mode(EGAM) is studied using gyrokinetic particle simulations in tokamak plasmas.In our simulations,exponentially growing EGAMs are excited by energetic particles with a slowing-down distribution.The frequencies of EGAMs are always below the frequencies of GAMs,which is due to the non-perturbative contribution of energetic particles(EPs).The mode structures of EGAMs are similar to the corresponding mode structures of GAMs.Our gyrokinetic simulation... 相似文献
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