多纳米粒子穿越磷脂膜

本文采用耗散粒子动力学模拟方法研究了多纳米粒子与溶液中的磷脂膜相互作用. 模拟中选择纳米颗粒的形状分别为球状和柱状，并且在动力学过程中给它们设置了不同的初始速度. 根据纳米粒子穿膜在动力学过程中体现出不同的特性，分别定义了几种粒子穿越磷脂的模式，并且基于粒子之间的相互作用强度和粒子初始速度，描绘了穿膜模式的详细相图. 本文还进一步研究了体系能量、迴旋半径等参数在不同穿越模式中的动力学过程. 研究结果有助于人们理解纳米颗粒穿膜在生命活动过程中的作用.     

放电激励的Ca+共振亚稳跃迁激光器的研究

理论上从分析Ca+的能级结构着手,确认其是一种很好的共振亚稳跃迁激光工作物质.实验上以氖为缓冲气体,在内径为12.9 mm, 电极间距为45 cm的石英放电管中,获得了平均功率为406 mW,功率密度为6.9 mW/cm3的红外共振亚稳跃迁激光输出.测量了一些参量之间的关系,分析了Ca+红外激光的工作特性.     

Ba原子6pns(J=1)自电离态光谱的理论计算

采用一个13通道多通道量子亏损(MQDT)模型对Ba原子6pns(J=1)自电离态的光谱进行了计算,并获得了它们的理论计算光谱.通过分析它们的自电离态光谱的特性,对6pns(J=1)自电离系列之间的组态相互作用现象进行了解释.     

放电激励的Ca+共振亚稳跃迁激光器的研究

理论上从分析Ca+的能级结构着手,确认其是一种很好的共振亚稳跃迁激光工作物质.实验上以氖为缓冲气体,在内径为12.9mm,电极间距为45cm的石英放电管中,获得了平均功率为406mW,功率密度为6.9mW/cm3的红外共振亚稳跃迁激光输出.测量了一些参量之间的关系,分析了Ca+红外激光的工作特性 关键词：     

Surface-induced morphologies of ABC star triblock copolymer in spherical cavities

The morphologies and phase diagrams exhibited by symmetric ABC star triblock copolymer nanoparticles are investigated on the basis of real-space self-consistent field theory. The ABC star triblock copolymers were chosen to be tiling-forming with fixed polymer parameter and the spherical boundaries were modeled using the masking technique. We first study a number of examples where the ABC triblock copolymers confined in spherical cavities with neutral surface. Then, two types of spherical cavity distinct preferential surfaces are considered, including both A-block attractive and repulsive preferential surfaces. We aim at the effects due to various spherical cavity diameters and the degree of interactions between the polymer and the spherical surface. A variety of morphologies, such as ring-like structures, concentric sphere, and irregular cylinder, were identified in phase diagrams. The results show that both the degree of interactions and spherical diameters can influence the formation of morphologies so that ring-like structures and other novel structures could be obtained.