Abstract: A therapeutic roller includes a cavity defined in an interior of the therapeutic roller. A first percussion device is disposed within the cavity. The percussion device includes a first reciprocating percussion head. A first aperture is defined in an exterior of the therapeutic roller. The first percussion head extends through the first aperture so as to contact a bodily region of a user. The first percussion device delivers percussion massage therapy to the bodily region of the user in conjunction with therapeutic roller therapy.

Abstract: A modular manifold system is disclosed. The system includes a first manifold body and a second manifold body configured to couple to the first manifold body via an attachment assembly. Each manifold body includes at least one end port to fluidly communicate with an interior cavity of each manifold body, where each manifold body includes an inlet end port and an outlet end port to transfer a fluid through the respective interior cavity. At least one of the first modular body or the second manifold body includes a valve port in fluid communication with the interior cavity of a respective modular manifold body. The system further includes a hose assembly coupled to one of the first manifold body or the second manifold body via the attachment assembly.

Abstract: A high-density power distribution system incorporates smart tap-off boxes (TOB) connected to an overhead busway and receiving therefrom a three-phase input power supply. The smart TOB resolves the three-phase input power into 3N single-phase output power circuits (where N is a positive integer) each connected to an overcurrent protection (OCP) device associated with an amperage level. A set of 3N conductors connected to the smart TOB carries the single-phase output power circuits to a rack power distribution unit (PDU, rPDU) in a server cabinet (e.g., via rack connection devices connecting the conductors to the rPDU), the rPDU including a linear array of output power sockets corresponding to the single-phase output power circuits.

Abstract: A ratcheting mechanism composed of a housing that encloses a plurality of pins acting as pawls, engaging with a rack having teeth, wherein each of the pins acts independently, allowing for fine adjustments of the rack. An actuator enables seamless engagement and disengagement of the pins in relation to the rack. A sensor may be used to determine the location of at least one pin within the housing as it is related to the rack.

Abstract: A ratcheting mechanism composed of a housing that encloses a plurality of pins acting as pawls, engaging with a rack having teeth, wherein each of the pins acts independently, allowing for fine adjustments of the rack. An actuator enables seamless engagement and disengagement of the pins in relation to the rack. A sensor may be used to determine the location of at least one pin within the housing as it is related to the rack.

Abstract: A radar cloaking apparatus configured for positioning on a radar target and corresponding methods are provided. The radar cloaking apparatus comprises a radio signal emitter and computational circuitry. The computational circuitry is configured to cause the radar cloaking apparatus to at least reference a model encoding scattering properties of the radar target; determine a predicted reflection signature of the radar target from a selected interrogation angle based at least in part on the model encoding the scattering properties of the radar target; and cause transmission, by the radio signal emitter, of a cloaking radio signal along the selected interrogation angle. The cloaking radio signal is actively generated based on the predicted reflection signature of the radar target shifted in phase such that the cloaking radio signal is configured to destructively interfere with a reflected signal formed by an interrogating radar signal scattering off of the radar target.

Abstract: Devices, methods, and systems for securing elongate items including but not limited to a device comprising a grabber portion having a loading zone and a sliding member; an actuator connected to the sliding member; and an extension portion comprising a pole; where the sliding member is biased toward the loading zone in an unactuated state, and the actuator is configured to move the sliding member so that the loading zone is open to receive an elongate item while the sliding member is in an actuated state.

Abstract: A system for harvesting solar energy on a spacecraft includes a stiff substrate layer and a working layer disposed on the substrate layer to provide at least one of a photovoltaic or a reflective function. In a first operational state, the substrate layer is arranged as a tape spring to store potential energy which causes the substrate layer to uncoil and provide, in a second operational state, a photovoltaic module and/or a solar concentrator.

Abstract: A radar cloaking apparatus configured for positioning on a radar target and corresponding methods are provided. The radar cloaking apparatus comprises a radio signal emitter and computational circuitry. The computational circuitry is configured to cause the radar cloaking apparatus to at least reference a model encoding scattering properties of the radar target; determine a predicted reflection signature of the radar target from a selected interrogation angle based at least in part on the model encoding the scattering properties of the radar target; and cause transmission, by the radio signal emitter, of a cloaking radio signal along the selected interrogation angle. The cloaking radio signal is actively generated based on the predicted reflection signature of the radar target shifted in phase such that the cloaking radio signal is configured to destructively interfere with a reflected signal formed by an interrogating radar signal scattering off of the radar target.

Abstract: A radar cloaking apparatus configured for positioning on a radar target and corresponding methods are provided. The radar cloaking apparatus comprises a radio signal emitter and computational circuitry. The computational circuitry is configured to cause the radar cloaking apparatus to at least reference a model encoding scattering properties of the radar target; determine a predicted reflection signature of the radar target from a selected interrogation angle based at least in part on the model encoding the scattering properties of the radar target; and cause transmission, by the radio signal emitter, of a cloaking radio signal along the selected interrogation angle. The cloaking radio signal is actively generated based on the predicted reflection signature of the radar target shifted in phase such that the cloaking radio signal is configured to destructively interfere with a reflected signal formed by an interrogating radar signal scattering off of the radar target.

Abstract: A method for managing propellant in a spacecraft is disclosed. The method includes storing liquid propellant in a tank under an operating pressure controlled using a product of chemical decomposition of the propellant. The method may include transferring the liquid propellant out of the tank and chemically decomposing a portion of it using, for example electrolysis. Thus generated one or more gas components may be introduced to the tank to control the operating pressure in the tank.

Abstract: Fastener systems and methods of attaching one or more layers of materials to a roof deck of a roof structure for forming a roof are disclosed. In embodiments, the fastener systems can include a plate having first and second surfaces with an aperture extending between the first surface of the plate and the second surface of the plate and configured to receive a fastener therein. A cover portion is provided to substantially enclose the first end of the aperture so as to cover a head of the fastener received within the aperture and protect the fastener from impacts due to objects striking the roof structure.

Abstract: A low profile brooder is provided, comprising a venturi, a burner base, a burner cap, and a baffle. The burner base and the burner cap reside adjacent to each other, with the burner cap disposed above the burner base and with a distribution chamber between them. A central axis is defined. A venturi resides below the burner base and is in fluid communication with the distribution chamber at the central axis. The venturi defines a fuel flow path between its upstream and downstream ends. The fuel flow path resides at least partially at one or more of an acute angle, a perpendicular angle, and an obtuse angle to the central axis. A baffle resides in the distribution chamber between the central axis and the periphery.

Abstract: A low profile brooder is provided, comprising a venturi, a burner base, a burner cap, and a baffle. The burner base and the burner cap reside adjacent to each other, with the burner cap disposed above the burner base and with a distribution chamber between them. A central axis is defined. A venturi resides below the burner base and is in fluid communication with the distribution chamber at the central axis. The venturi defines a fuel flow path between its upstream and downstream ends. The fuel flow path resides at least partially at one or more of an acute angle, a perpendicular angle, and an obtuse angle to the central axis. A baffle resides in the distribution chamber between the central axis and the periphery.

Abstract: A submersible system is provided having a submersible launch vessel that sends instructions from a mission controller to deploy one or more deployable systems for one or more underwater operations. The submersible launch vessel is submerged within a waterbody. A submersible power supply powers the submersible launch vessel and the one or more deployable systems. One or more communication devices is in communication with the mission controller, and the mission controller is located in one of a remote or a local location relative to the submersible launch vessel. The one or more deployable systems, via the one or more communication devices coupled to the submersible launch vessel, are remote controlled by the mission controller to execute the one or more underwater operations. Also, information associated with the one or more underwater operations including telemetry data is transmitted to the mission controller from the submersible launch vessel.

Abstract: A system for harvesting solar energy on a spacecraft includes a stiff substrate layer and a working layer disposed on the substrate layer to provide at least one of a photovoltaic or a reflective function. In a first operational state, the substrate layer is arranged as a tape spring to store potential energy which causes the substrate layer to uncoil and provide, in a second operational state, a photovoltaic module and/or a solar concentrator.

Abstract: A tracking and monitoring system and method includes a callback engine in communication with a plurality of GNSS-enabled ankle monitor bracelets via cellular/Wi-Fi internet service or SMS text service, depending on availability of services at each bracelet location. SMS text communication may be routed via a relay service. Bracelet straps form electrical circuits by which open, closed, cut, or shorted conditions are detected and relayed to the callback engine. Bracelets include components for detection of magnetic hacking, physical intrusion, software hacking, and GNSS spoofing. The callback engine may remotely update bracelet setting and cause playback of audio messages; bracelets confirm execution with the callback engine. Bracelets include advanced power saving circuitry and notify the callback engine of low battery levels.

Abstract: A subsea garage for an unmanned underwater vehicle (UUV) has a body having a receptacle for the UUV, an open top providing a transit path for the UUV into and out of the receptacle and a base opposed to the open top, the base being arranged to lie on the seabed. At least one post is movable, subsea, relative to the body into a deployed position extending upwardly from the body above the open top. A lid may also be movable relative to the body between a closed position that closes the open top and an open position that allows the UUV to move along the transit path through the open top. A fixed post may extend upwardly from the body above the open top, in which case the lid may enclose the post when in the closed position and expose the post when in the open position.

Abstract: A radar cloaking apparatus configured for positioning on a radar target and corresponding methods are provided. The radar cloaking apparatus comprises a radio signal emitter and computational circuitry. The computational circuitry is configured to cause the radar cloaking apparatus to at least reference a model encoding scattering properties of the radar target; determine a predicted reflection signature of the radar target from a selected interrogation angle based at least in part on the model encoding the scattering properties of the radar target; and cause transmission, by the radio signal emitter, of a cloaking radio signal along the selected interrogation angle. The cloaking radio signal is actively generated based on the predicted reflection signature of the radar target shifted in phase such that the cloaking radio signal is configured to destructively interfere with a reflected signal formed by an interrogating radar signal scattering off of the radar target.