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Rocket propulsion system development is enabled by rigorous ground testing to mitigate the propulsion system risks inherent in spaceflight. Helium is used in piping and engine purge processes to inert liquid hydrogen systems. The cost of helium is increasing as the supply diminishes, impacting testing of the rocket engines for space propulsion systems. There is an outstanding need within NASA prop ...

Vescent Photonics, LLC (Vescent) in collaboration with the Massachusetts Institute of Technology Lincoln Laboratory (MIT-LL) proposes to develop a compact ultra-narrow linewidth laser based on photonic integrated chip (PIC) technology for next-generation fieldable quantum sensor applications including optical atomic clocks, two-way time transfer, and precision inertial force and gravity sensing.nb ...

The proposed project aims to use ultrafast laser inscription (ULI) technology to improve the fabrication flexibility and versatility of a critical photonic component, arrayed waveguide grating (AWGs). The fabricated AWGs can be directly integrated with other ULI-based photonics devices, such as waveguide lasers, photonic lanterns, and modulators, realizing monolithic transmitters. This direct on-c ...

For future long-duration space exploration missions, NASA expressed the need for plant systems that may provide a nutrient dense supplement to crew diet and possibly other life support functions, such as CO2 removal, O2 production, water recovery, and waste recycling.nbsp; Current and future infrastructure for plant growth include chambers with controlled environments.nbsp; To ensure optimal growi ...

Abstract Colorectal cancer (CRC) is the third most diagnosed cancer in the USA and accounts for more than 600,000 deaths annually worldwide, primarily due to relapse with highly aggressive, chemo-resistant disease characterized by poorly differentiated cancer cells with stem cell-like properties. A common signature of these chemo-resistant tumors is dysregulation of Notch receptor signaling, as we ...

To facilitate the return of humans to the moon in the next several years, consideration must be given to various types of infrastructure that will be required. Navigational features are promising for accurate and repeatable vehicle landings. Durable landing pads will be able to ensure stable landing and to prevent erosion of landing sites and sand-blasted abrasion of any nearby structures. Berms t ...

We propose to develop a three-dimensional (3D) mid-infrared (mid-IR) Photonic Lantern (PL) based on femtosecond laser inscription (FLI) technology. FLI of PLs allows converting the atmospheric seeing-limited signals captured by the telescope into diffraction-limited signals. A linear arrangement of the single-mode outputs can be further realized to form the virtual input slit of a spectrograph. Th ...

Solar Sail Tubular Mast (SSTM) is a lightweight version of Opterusrsquo; patented High Strain Composite (HSC) Trussed Collapsible Tubular Mast (T-CTM). SSTM is a high-performance truss of tape-springs with structural mass efficiency twice that of trusses of solid rods (e.g. coilable longeron masts) and four times better than traditional non-trussed CTMs. SSTM booms are inherently low cost because ...

Air Company has developed carbon dioxide hydrogenation technology that produces paraffins (C8-C16 and higher) in a single step using only carbon dioxide and hydrogen gases as feedstock. The hydrogen gas is sourced using renewably powered water electrolysis, thus the only byproduct of the process is the oxygen that is coproduced from the electrolyzer. Coupling this system with direct air capture te ...

Electro Magnetic Applications, Inc. (EMA) and the Applied Research Institute (ARI) at the University of Illinois at Urbana-Champaign propose to continue the development and validation of a user-friendly software tool for the estimation of field distributions within rocket fairings due to antennas radiating internal and external to the enclosures. The tool will include a Power Balance (PwB) method ...