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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Focusing in on the High Energy Universe III: High-energy Astrophysics Instrumentation
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Focusing in on the High Energy Universe I: The High-energy Astronomical Sky
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Design of a High Power Density, High Efficiency, Low THD 250kW Converter for Electric Aircraft
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Leadership in a High Performing, High Reliability Organization: Insights from NASA’s International Space Station Mission Control
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High Altitude Lidar Observatory - (HALO) A Combined Water vapor DIAL and High Spectral Resolution Lidar
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Performance of High Energy and High Power Commercial Li-ion Cells for Space Missions
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Ester and Carbonate-Based Low Temperature Electrolytes in High Specific Energy and High Power 18650 Li-Ion Cells for Future NASA Missions
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Engineering Challenges for High-risk, High-Impact Space Exploration in the next two decades
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Future High-Resolution and High-Cadence Observations for Unraveling Eruptive Solar Features
Many of the key advances in solar science over recent decades have been strongly influenced by imaging with increasing resolution and cadence of the Sun’s atmosphere from space. There is still much room for further advances in this area in the coming decades. Here we demonstrate this potential using recent advances in observation and understanding of the features known as solar coronal jets. Modern jet studies started in the 1990s, but have progressed substantially over the past ten years. Much of this progress is due to improved resolution and cadence in imaging, along with concurrent improved magnetic field and spectroscopic observations. Moreover, it is now clear that jets are smaller-size-scale, shorter-time-scale versions of less-frequent larger solar eruptions. Jets are also likely representative of yet more numerous eruptions occurring on smaller size scales. We propose development of instrumentation focused on multi-wavelength observations of jet-sized-scale eruptive solar activity, as a window to understanding both larger-scale and smaller-scale eruptive solar events.
Recent advances in Coronal Heating due to High Resolution Imaging: Results from the High-Resolution Coronal Imager
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A Virtual Reality Planning Environment for High-Risk, High-Latency Teleoperation
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A Virtual Reality Planning Environment for High-Risk, High-Latency Teleoperation
In-Space Servicing, Assembly, and Manufacturing has the potential to enable larger-scale and longer-lived infrastructure projects in space. Servicing in particular has the potential to vastly increase the usable lifetimes of satellites, both newly launched and existing. However, some of these servicing tasks require delicate manipulation and, to apply to existing satellites, need to be able to operate on structures that were not designed for servicing and, in some cases, where the exact shape of the structure is not known in advance. For this reason, human-in-the-loop ground-based teleoperation is the only option for some missions. Ground-based teleoperation presents its own difficulties. In addition to the challenge of performing delicate operations in constrained spaces, communication with the servicing platform is subject to a variable time delay on the order of 2-7 seconds, and the only visual feedback comes from camera views with limited situational awareness and viewing angles.