Abstract: Systems and methods are disclosed to transport a common load attached by slings by two or more Vertical Take Off and Landing (VTOL) aircraft using synchronized maneuvering and load feedback control.

Abstract: An optoelectronic device apparatus using active, frequency-selective metasurfaces to achieve retroreflection at a pre-determined single frequency and optionally provide signal modulation on the reflected light beam. The apparatus may use several active, frequency-selective metasurfaces to replace traditional optical lens and mirrors.

Abstract: Disclosed herein are embodiments of an energetic compound and methods of making and using the same. Energetic compound embodiments disclosed herein exhibit physical and chemical properties that facilitate their use in various applications, such as high energy propellant plasticizers, melt-castable explosives, and the like. Efficient and safe method embodiments for making the disclosed energetic compound embodiments are described herein.

Abstract: A biofabrication method for producing cellulose-based materials. The method includes providing active cellulose-producing bacteria such as Gluconacetobacter and culturing media in a container; combining organic additives or inorganic additives with the active cellulose-producing bacteria in the container to produce a cellulose hydrogel matrix composed of entangled bacteria-produced cellulose nanofibers; controlling a concentration of the additives in the cellulose hydrogel matrix; and exposing the cellulose hydrogel matrix in selected thermal environment to create a biofabricated functional material.

Abstract: A thermal energy storage (TES) device includes a thermoelectric cooler; and a metallic phase change material (PCM) within the thermoelectric cooler. The PCM may include any of gallium or its alloys, low temperature fusible alloys, and solid metal shape memory alloys. A thermoelectric effect within the PCM is to transport heat in the thermoelectric cooler. The TES device may include a graded oxide layer adjacent to the PCM to serve as a distributed electrical junction in the thermoelectric cooler to create a hot side thermoelectric junction in a bulk volume of the PCM. The graded oxide layer may include ?-IGZO. The TES device may include a high-thermopower corrugated metal foil layer comprising barrier oxides patterned therein. The high-thermopower metal foil layer may be adjacent to the graded oxide layer. The TES device may include a dielectric layer adjacent to the high-thermopower corrugated metal foil layer.

Abstract: Disclosed are compounds, compositions, and methods relating to epitope-targeted immunostimulants (EPIs), which comprise a synthetic peptide ligand and an antibody-recruiting moiety. The peptide ligand binds an epitope on a target and the antibody-recruiting moiety recruits antibodies to the target when the EPI is bound to the epitope on the target. Also disclosed are compositions comprising any of the disclosed EPIs. Also disclosed are methods of stimulating an immune reaction to a microorganism or other pathogen in a subject where an EPI is administered to the subject. Also disclosed are methods of identifying the peptide ligand by using multi-omic analysis.

Abstract: A topological material includes a lattice crystalline structure; and a material defect in the lattice crystalline structure that is treatable by hydrogen passivation that chemically mitigates an electronic charge associated with the material defect. The lattice crystalline structure includes dangling bonds in an atomic arrangement of the material defect of the lattice crystalline structure, and the hydrogen passivation may apply hydrogen to chemically passivate the dangling bonds of the material defect. The hydrogen passivation may be achieved by diffusing hydrogen into common materials of the lattice crystalline structure. The hydrogen passivation may chemically and/or electrostatically neutralize an electronic activity associated with the material defect.

Abstract: An apparatus for testing personal protection equipment or devices comprising an enclosure body having an air-inflatable support structure that receives an air-transferable chemical and air to maintain a substantially rigid structural integrity; a nozzle connected to the air-inflatable support structure, wherein the nozzle releases air and the air-transferable chemical from the air-inflatable support structure into the interior of the enclosure body for a selected period of time as a concentration of the air-transferable chemical in the interior of the enclosure body is at a steady state of uniformity; and a panel integrated into the enclosure body that passively releases air from the enclosure body.

Abstract: Method and apparatus for detecting and characterizing a pulse sequence using a finite impulse filter to determine a pulse width (PW) of pulses within the pulse sequence. The method and apparatus may also apply a histogram to the filtered pulses to determine the pulse rate interval (PRI) of pulses in the pulse sequence.

Abstract: For see-through AR displays, the current state of art uses geometric correction to lower the display location error, however this is far from an ideal solution and requires knowing range or pose of the devices. A dual-function optic for near-to-eye display & camera is disclosed, wherein a sensor camera imaging optics pipeline with a virtual projection point at an eye's retina reduces parallax errors to zero.

Abstract: A process for the rapid fabrication of a sorbent hollow fiber membrane (HFM) with a very high metal organic framework (MOF) content as well as the apparatus to contain such fibers for the purposes of sequestering and separating chemicals is described. Herein we developed a process to rapidly prototype meters long HFM batches with a high MOF content for sequestering and filtration. The HFM produced herein can be tailored to precisely sequester chemical of a hazardous nature which may include chemical warfare agents (CWA) or toxic industrial chemicals (TIC). The HFM are comprised of a polymer-based material that includes a polymeric binder; and one or more porous active materials that adsorb, chemisorb, decompose, or a combination thereof, a hazardous chemical.

Abstract: A technique for providing cyber resilience by integrating autonomous adversary and defender agents, deep learning, and graph thinking. An automated competitive environment of autonomous adversary and defender agents is provided such that the adversary agent can emulate the adversary activities, patterns, and intentions using all available cybersecurity measurements and observations, and, the defender agent can generate and suggest the best possible appropriate actions to mitigate or prevent adversary activities while recovering or protecting assets. An automated cyber resilience system with autonomous agents is provided using machine learning and security analytics to first predict the current and future adversary activities and then provide an automated critical asset protection and recovery by enabling agents to take appropriate reactive and pro-active actions at each time step to prevent, recover, or mitigate adversary activities over enterprise and tactical networks.

Abstract: A method of determining a tool path for an additive deposition on a surface, the method including receiving primary edges data of the surface of a three-dimensional (3D) object; calculating a number of raster lines for applying an additive deposition on the surface; mapping a raster pattern to the surface of the 3D object; calculating surface normal and rotational angles along the raster lines; calculating a nozzle velocity of an additive application used for producing the additive deposition on the surface; identifying curvature effects of the 3D object; and establishing an order of performing passes of the additive deposition on the surface based on a selected direction for performing the additive deposition and a consideration of a residual stress profile of a resulting deposit.

Abstract: A system for automatically locking a control laser in a Rydberg atomic sensor may comprise an atomic vapor cell, a probe laser configured to excite the atoms in the atomic vapor cell to an intermediate energy state, and a control laser configured to excite the one or more atoms in the atomic vapor cell from the intermediate energy state to a higher energy state. The light generated by the control laser may be dithered at a pre-determined frequency. The system further comprises a photodiode configured to convert light received from the vapor cell into an electrical signal, a lock-in amplifier configured to generate an error signal based on the electrical signal received from the photo diode and a received reference oscillation frequency, and a servo configured to receive the generated error signal from the lock-in amplifier and adjust a frequency of the control laser based on the received error signal.

Abstract: A filter adaptor is provided for a respirator that allows the respirator to accommodate filters that have a different connection interface than the filter connection on the respirator. The adaptor includes a body having a first surface and an opposite second surface and defines a through hole. Mask locking tabs on the first surface engage with a complementary bayonet attachment the respirator. A first wall on the first surface and an inlet port gasket thereon nests within a complementary inlet port on the respirator to form an air-tight seal between the first wall and the inlet port. A valve ring on the first surface of the body engages an inlet valve on the respirator. A second wall on the second surface includes filter locking tabs that engage with a complementary filter opening of a filter. A filter gasket around the second wall forms an air-tight seal between the filter opening and the adaptor.

Abstract: Apparatuses are disclosed herein for holding and securing an item. In one embodiment the item holder includes at least one layer of material between two outer layers of material. The two outer layers are made of a different material than the material of the at least one layer of material. Portions of the two outer layers and the at least one layer are secured together to form an opened ended receptacle for receiving an item. A set of hook/loop fasteners are secured to the exterior of the receptacle. The item holder also includes a material loop adapted to receive the receptacle. The material loop includes an interior surface that includes a second set of hook/loop fasters adapted to contact the first set of hook/loop fasteners. Although not required, an insertion tool may be used for insertion of receptacle into the material loop.

Abstract: A remote weapon system (RWS) for an unmanned ground vehicle (UGV) includes a dedicated weapon, multi-axis gimbal and ammunition handling capabilities with all operations functioning remotely and wirelessly. The RWS comprises system-level and component-level safety features which preclude the weapon of the remote weapon system from being operable if removed from the remote weapon system.

Abstract: A family of new and novel molecules for mechanically superior two-dimensional (2D) polymers is described herein. By combining stiff carbon-containing cyclic polymer nodal units with more compliant linear polymer bridge units in an ordered, 2D repeating molecular structure it is possible to tailor the mechanical properties of 2D polymers and their assemblies to provide high stiffness, strength, and toughness. Furthermore, the inherent dimensionality of 2D polymers and their ability to be stacked into ordered and chemically interactive ensembles gives them inherent benefits in a variety of barrier and structural applications over current stiff and strong linear polymer technologies.

Abstract: A vehicle or shipping-container monitoring system is provided. The system is used to sample the interior environment of the container and if needed, clear a potentially hazardous material from the interior of the container prior to conventional opening. The system includes a monitoring assembly affixed to a first through-penetration in the vehicle container, an evacuation assembly affixed to a second through-penetration in the vehicle container, and an intake penetration with a cap affixed to a third through-penetration in the vehicle container. A method is also provided to assess the interior of a vehicle or shipping container for hazardous gases or vapors prior to opening the container.

Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.