Abstract: Systems and methods describe providing deep learning-based detection of gravitational waves. In one embodiment, the system: trains a deep learning classifier using a first set of waveform data from GW detectors; applies the trained deep learning classifier to a second set of waveform data to identify candidate GW signals; generates an SNR ranking statistic from the output of the trained deep learning classifier; determines SNR rankings of the candidate GW signals using the generated SNR ranking statistic; evaluates the compatibility between candidate GW signals from different detectors by comparing arrival times and parameters of the candidate GW signals; estimates a plurality of detection significance scores associated with the candidate GW signals by analyzing clusters of identified candidate GW signals that pass or fail the compatibility evaluation; and outputs at least a subset of the identified GW signals based on their SNR rankings and detection significance scores.

Abstract: A launch acceleration system can include a passage, a plurality of magnetic components, and a control system. The passage can include an entry region, a projectile acceleration pathway, and an exit region for a moving projectile having a magnetically susceptible portion. The magnetic components can be arranged around the projectile acceleration pathway such that the moving projectile travels through the magnetic components. The control system can be coupled to the magnetic components and can be configured to actuate the \magnetic components at one or more proper times to facilitate one or more applications of magnetic force from the magnetic components to the moving projectile as the moving projectile passes through the projectile acceleration pathway in a manner that accelerates the moving projectile.

Abstract: A media presentation system can include a media generation component, a projection component, a first redirection component, and a display component. The media generation component can generate video imagery, and the projection component can project one or more beams containing the video imagery in an initial direction. The first redirection component can redirect the beam(s) from the initial direction to a subsequent different direction. The display component can receive the beam(s), display the video imagery, and can form a substantially continuous spherical shape that surrounds multiple human viewers of the video imagery above and around all sides of all viewers. A second redirection component can receive the beam(s) in the subsequent direction from the first redirection component and redirect the beam(s) in a following direction toward the display component. The system can form a dome-shaped movie theater that displays the video imagery at the display component located within the dome.

Abstract: A graphene structure can include multiple graphene layers stacked into a perturbed symmetry. A first graphene layer can be situated a first rotational angle with respect to a rotational axis extending perpendicularly through the first graphene layer, and a second graphene layer can be situated atop the first graphene layer at a second rotational angle with respect to the rotational axis. A third graphene layer can be situated atop the second graphene layer at a third rotational angle with respect to the rotational axis, and the third rotational angle can be different than the second rotational angle. Additional graphene layers can be successively stacked onto the graphene structure, with each layer being set at a different rotational angle than the previous layer. Six total graphene layers can be stacked. The relationship of the ratios between all rotational angles can forms an arithmetic, geometric, or Fibonacci sequence, or another pattern.

Abstract: A composite material structure can be constructed using an airforming process that includes filling the inflated support mold with a fluid structural material and allowing the fluid structural material to harden within the support mold. Additional steps can include inflating the support mold with a first fluid, forming fluid escape outlets in the support mold, and removing the support mold after allowing the fluid structural material to harden. The first fluid can be air, the support mold can be a fiberglass resin, and/or the fluid structural material can be a concrete composite material. Fluid can escape through the fluid escape outlets during the filling. The finished structure can include multiple structural components formed from a homogenous concrete composite material and having curved and non-planar geometries. The concrete composite material can include aluminum alloy fibers.

Abstract: A system for producing a proof-mass assembly includes a translation stage to receive a flapper hingedly supported by a bifilar flexure that extends radially inwardly from a support ring, wherein the bifilar flexure comprises a pair of flexure arms spaced apart by an opening or window; and a femtosecond laser optically coupled to the translation stage with focusing optics, the femtosecond laser applying a laser beam on the flexure arms over a plurality of passes to gradually thin the bifilar flexure regions, the laser periodically reducing a laser output to minimize damage from laser scanning and maximize bifilar flexure strength until the bifilar flexure reaches a predetermined thickness.