SARP East 2024 Atmospheric Science Group - NASA

文章1： 作者：Milan Loiacono 标题：返回2024 SARPCloseout 文章2： 作者：Danielle Jones 标题：Remote sensing of poor air quality in mountains: A case study in Kathmandu, Nepal 文章3： 作者：Madison Holland 标题：Analyzing the Transport and Impact of June 2023 Canadian Wildfire Smoke on Surface PM2.5 Levels in Allentown, Pennsylvania

Integrated Computational Materials Modelling Framework

该文章介绍了一项研究计划，针对月相环境下的激光焊接过程-结构-性质关联问题，提出了一种综合计算材料建模框架。由于月相环境的极端条件，如 reduced gravity、large temperature change 和 extreme vacuum，激光焊接过程中会产生内部缺陷，如孔洞和未熔合区域。这种内部缺陷对焊接接头的材料和力学性能有重要影响。研究团队将建立一个模型，全面考虑月相环境下激光焊接中形成的内部缺陷，...

Introducing a Multiple-pad, Replaceable-tip Sonotrode for Ultrasonic Metal Welding - EWI

超声波金属焊接是连接锂离子电池最有效的方法之一。然而，由于工具磨损需要完全更换超声波头，这对每天执行数千次焊接的制造商来说是一个限制因素。 EWI已经设计并验证了一个使用抗磨损的钨碳素作为替换头的超声波头，这可以节省成本、材料，并减少焊机停机时间。应用工程师Amin Moghaddas详细介绍了该技术的细节。 您可以免费下载此论文，只需填写此页面上的表格。 如果您对这种或其他超...

Bob Swap Builds Bridges With ‘Science Diplomacy’ - NASA

Earth scientist Robert J. "Bob" Swap is the Associate Director for Mission Planning, Earth Sciences, and environmental scientist at NASA's Goddard Space Flight Center. He works with personnel to develop mission concepts and assemble teams to address Earth science challenges. Bob has a B.A. in environmental science from the University of Virginia, and master's a...

Super Insulation Requires Super Materials  - NASA

Station Science Top News: Nov. 15, 2024 - NASA

文章主要介绍了两项太空研究：一项关于宇宙中萃取物对种子活力的影响，另一项是验证了在微重力环境下进行实验的低成本、自主技术。其中，航天科学家发现，经过太空暴露后，富含花青素的紫色马铃薯种子发芽率高于非色素白色马铃薯种子，这表明花青素，一种能保护植物免受紫外线损伤的黄酮类化合物，可以帮助维持未来太空任务的种子活力。另一项研究中，利用冰块#6- Kirara，一种由欧洲航天局...

NASA’s EMIT Will Explore Diverse Science Questions on Extended Mission - NASA

How Open Science and AI Are Advancing Hurricane Research

tists and engineers are working together to improve hurricane prediction. We’ll also explore how NASA is making data open to everyone through Transform to Open Science. So, if you’re curious about the wild and wonderful universe we share, get ready to fly directly into the eye of a hurricane and join NASA’s Curious Universe for a mind-blowing journey.

Station Science Top News: Nov. 8, 2024 - NASA

Researchers have successfully 3D printed knee cartilage tissue using bioinks and cells in microgravity, overcoming some of the challenges present in Earth's gravity. They have also maintained complex cultures of central nervous system cells, known as brain organoids, in microgravity for long periods, showing faster development of neurons than in Earth's gravity...

Exoplanet Science - NASA

ARM Institute - Robotic Welding Workshop - EWI

ARM Institute will host a presentation by EWI Senior Engineer Michael Carney on the latest advances in robotic welding and their practical applications at the ARM Robotic Welding Workshop on November 21st from 2:15-2:45.

NASA to Transform In-Space Manufacturing with Laser Beam Welding Collaboration - NASA

为了在月球上进行返回和最终探索火星的计划，美国航天局（NASA）的曼哈顿航天中心与俄亥俄州立大学合作，进行激光束焊接研究，以刺激太空制造。该研究旨在通过在真空和减重环境下研究激光束焊接的物理过程，以提高太空制造的能力，从而在月球上组装大型结构或进行月球修复，这将有助于人类在火星上进行下一次巨大的飞跃，将宇航员送往火星及更远的行星。 研究人员正在收集在模拟太空条件下...