空间液体润滑多孔储油器特性研究

液体润滑普遍存在于大多数空间运动部件中．然而，由于空间环境恶劣（低重力、高真空）所造成的润滑剂严重损失，许多液体润滑运动部件都不能达到其使用寿命的要求．因此，有必要采取措施对空间运动部件进行补油，利用多孔储油器补油便是其中的方法之一．由于其体积小、结构简单而广泛应用于小型航天仪器中，并在维持轴承腔内油膜厚度和油分布方面也能取得令人满意的效果，因此备受关注．离心作用和加热效应是使储油器溢油的两种方法，本文针对这两种方法，对空间多孔储油器的液体润滑剂储运规律进行理论分析，同时设计了离心供油和加热供油两套实验装置．

Space and Gender in the Ancient Greek Novel

The plots of the five Greek novels of "love and Adventures" are set in two differentent spaces. First, a macrospace, a gigantic stage which mainly includes Eastern cities of the Roman Empire, where the protagonists live the so-called adventures. And second, the microspaces, depicted in Longus' novel and occasionally in the other novels. The love ideology is clearly conservative, and it has a specific practical purpose among the Hellenized higher classes in the Eastern Empire.