月球原位能源支撑技术探索构想

随着探月工程规模的不断扩大,仅仅依靠太阳能电池或小型放射性同位素电源将难以为月基活动提供充足持续的能源供应,研发月球原位能源供给技术是各类月基活动的关键基础。本文基于月壤和月岩恒温层与月球表面存在巨大温差的特性,提出了利用该温差进行发电的月基原位能源支撑技术构想,设计了月球温差热电材料热伏发电技术和月球温差磁悬浮发电技术及实施构想。月球温差热电材料热伏发电系统直接利用热电材料实现昼夜连续工作的热电转换,将月表辐射能（白天）以及月壤的热能（夜晚）连续转化为电能;月球温差磁悬浮发电系统和技术利用氨-铝热虹吸管取热和磁悬浮透平发电机发电的方案将月球表面与月球月岩恒温层之间的温差转换为电能。两类月基温差发电技术具有无机械摩擦、效率高、寿命长、质量轻的优点,可为探月活动原位能源供给提供相关技术支撑。     

Solar-wind protons and heavy ions sputtering of lunar surface materials

Lunar surface materials are exposed to ∼1 keV/amu solar-wind protons and heavy ions on almost continuous basis. As the lunar surface consists of mostly oxides, these materials suffer, in principle, both kinetic and potential sputtering due to the actions of the solar-wind ions. Sputtering is an important mechanism affecting the composition of both the lunar surface and its tenuous exosphere. While the contribution of kinetic sputtering to the changes in the composition of the surface layer of these oxides is well understood and modeled, the role and implications of potential sputtering remain unclear. As new potential-sputtering data from multi-charged ions impacting lunar regolith simulants are becoming available from Oak Ridge National Laboratory’s MIRF, we examine the role and possible implications of potential sputtering of Lunar KREEP soil. Using a non-equilibrium model we demonstrate that solar-wind heavy ions’ induced sputtering is critical in establishing the timescale of the overall solar-wind sputtering process of the lunar surface. We also show that potential sputtering leads to a more pronounced and significant differentiation between depleted and enriched surface elements. We briefly discuss the impacts of enhanced sputtering on the composition of the regolith and the exosphere, as well as of solar-wind sputtering as a source of hydrogen and water on the moon.     

Decoding the Moon Phase Display Device over the Front Dial of the Antikythera Mechanism

The Antikythera mechanism is the most famous ancient astronomical calculator. The damaged excavation is a critical constraint for decoding the mechanism completely. By the systematic reconstruction des...     

双半月型超薄多微孔平行流冷凝器的研究开发

研制了用于汽车空调系统的双半月型超薄多微孔平行流冷凝器,简要介绍了其性能优势、结构特点、关键技术及其推广应用前景。     

从“月饼”看食品安全问题

该文从月饼的起源、演变和发展的角度着眼,分析了月饼目前存在主要问题,以及产生这些问题的主要原因。根据目前食品行业新出台的政策,笔者提出了一些解决的方法和措施。     

月饼配料等对月饼质地的影响

文章对碱水、防腐剂、乳化剂以及糖浆等困素对月饼质地的影响作了研究,质地的测量采用了TA-XT2i物性测定仪。结果表明适当提高饼皮中糖浆与碱水的添加量,降低饼皮的厚度,可以降低月饼的硬度,改善口感。     

美国重返月球计划的新型运载火箭

介绍了美国重返月球计划中阿瑞斯1和阿瑞斯5两种新型运载火箭的研制背景;详细介绍了两种火箭的设计方案;并对火箭的研制进展进行了描述.     

无糖蚕蛹蛋白南瓜月饼的制作研究

研究了无糖蚕蛹蛋白南瓜月饼的制作工艺,即温度、湿度和空气对其保存的影响。研究结果:在温度25℃、湿度50%条件下,无糖蚕蛹蛋白南瓜月饼可以保存17d以上,保持口感酥软,颜色金黄,不变质;有害细菌数﹤1×10cfu/g;真空包装保存时间可以延长到120d以上。     

唐宋词中的"月亮-女人"模式

通过对唐宋词中月亮意象的归纳分析,说明月亮和女人联系之原因,揭示了唐宋词中"月亮-女人"模式背后的心理基础.