Abstract: A method of measuring millisecond-scale blast and impact characterization in soft materials includes embedding one or more sensors in soft material, wherein the one or more sensors have mechanical properties approximately matching the soft material; applying a constant current to the one or more sensors; subjecting the soft material to a shock or impact event; measuring a response as a change in voltage; and converting the measured voltage to strain or pressure.

Abstract: The invention relates to a polymeric composite. The polymeric composite includes a polymeric matrix that further includes a thermoset polymer and a phase change material that has been mixed with the polymeric matrix using a thickening agent. In some cases, the polymeric composite is at least 10% by weight of the phase change material.

Abstract: A method of forecasting an ocean state via a multi-scale two-step assimilation of Surface Water Ocean Topography (SWOT) observations. The method may include receiving data associated with a prior ocean state forecast associated with SWOT observations, determining a large-scale increment state variable based on a large scale correction associated with the prior ocean state forecast, and determining a small scale initial input value based on (i) a combination of the background state associated with the prior ocean state forecast and (ii) the determined large-scale increment state variable. The method may include generating, based on the determined small scale initial input value, a small scale correction associated with the prior ocean state forecast, determining a small-scale increment state variable based on the small scale correction, and generating a current ocean state forecast based on at least some of this information.

Abstract: The invention relates to discovering and clustering Internet protocol addresses. For example, the invention can include discovering an IPv6 address of an Internet-facing device on a network, where the IPv6 address is associated with a wide area network (WAN) media access control (MAC) address and a WiFi basic service set identifier (BSSID), identifying an associated BSSID in WiFi geolocation databases based on the WAN and WiFi BSSID, and geolocating the Internet-facing device by retrieving a location record in the WiFi geolocation databases for the associated BSSID.

Abstract: Methods for obtaining a free-standing thick (>5 ?m) epitaxial material layer or heterostructure stack and for transferring the thick epitaxial layer or stack to an arbitrary substrate. A thick epitaxial layer or heterostructure stack is formed on an engineered substrate, with a sacrificial layer disposed between the epitaxial layer and the engineered substrate. When the sacrificial layer is removed, the epitaxial layer becomes a thick freestanding layer that can be transferred to an arbitrary substrate, with the remaining engineered substrate being reusable for subsequent material layer growth. In an exemplary case, the material layer is a GaN layer and can be selectively bonded to an arbitrary substrate to selectively produce a Ga-polar or an N-polar GaN layer.

Abstract: Methods and systems for determining extracellular concentration data of an analyte are disclosed. A method for determining extracellular concentration data of an analyte includes receiving sensor data from one or more arrays of functionalized plasmonic nanostructures on a localized surface plasmon resonance imaging chip in contact with a fluid containing at least one living cell for a plurality of times, determining intensity data for the one or more arrays, determining fractional occupancy based on the intensity data, and determining extracellular concentration data based on the fractional occupancy data. A system for determining extracellular concentration data of an analyte includes a LSPRi chip, a sensor component, an intensity component, a fractional occupancy component, a concentration component, and a processor to implement the components.

Abstract: A method of making an electrode by providing a mixture of first particles of silver or silver oxide and second particles of an inorganic porogen, molding the mixture, cohering the mixture to form a green body, demolding the green body, heating the green body to form a monolith, to convert any silver oxide to silver, and to fuse the first particles together, and submerging the monolith in a liquid that removes the second particles.

Abstract: Systems and methods are provided for interrogating a moving acoustic source using radar and processing data using a selection of motion compensation techniques adapted from synthetic aperture radar (SAR) to remove the effects of linear and nonlinear target motion so that the range-Doppler map retains only vibration information in the Doppler dimension. Vibration and sound waveforms can thus be selectively reproduced at specific ranges directly from the radar baseband waveform, without the need for additional complex analysis or audio processing.

Abstract: A method and apparatus uses a VLF transmitter, a VLF receiver, and/or a low earth orbit satellite including a rocket engine. A VLF wave transmitted into space is converted to an ambient wave. The ambient wave acts as a signal wave for a whistler traveling wave parametric amplifier. Rocket exhaust is generated in atmospheric plasma. The rocket exhaust includes kinetic energy acting as a Lower Hybrid wave source. The Lower Hybrid wave source produces a Lower Hybrid wave, which acts as a pump wave for the parametric amplifier. Nonlinear mixing of the signal wave and the pump wave in the atmospheric plasma simultaneously parametrically amplifies the ambient wave and generates an idler wave and a parametrically amplified wave. The parametrically amplified wave (1) reduces the density of energetic protons or killer electrons in the Van Allen radiation belt, and (2) improves communications between the VLF transmitter and VLF receiver.

Abstract: This disclosure concerns electrically conducting poly(pyrazoles). The concept of oligomerizing and polymerizing substituted aminopyrazole derivatives combined with a monomer activation procedure involving base-mediated conversion of the protonated pyrazole ring nitrogen to amine salt was developed. This disclosure concerns the specific chemistries needed for the synthesis of a pyrazole monomer used in the polymer synthesis. The procedure used for blending the novel polypyrazoles with other compounds needed for construction of solar cells for testing was developed. This disclosure concerns the concept of using these types of heteroatom-rich, electron-deficient oligomers or polymers as n-dopable or p-dopable electron acceptors in photovoltaic cells. This disclosure concerns synthesizing the starting monomer compounds and polypyrazoles.

Abstract: A laminated article having a first layer and a second layer. Each layer has a porous carbon structure and a porous polymer. The pores of the two porous polymers are from 1 nanometer to 10 microns in diameter, and the two porous polymers have different pore size distributions. A method of making the laminated article by hot-pressing the two or more layers. The article may be used in an electrochemical cell.

Abstract: A method of laser-writing submicron pixels with tunable circular polarization and write-read-erase-reuse capability on Bi2Se3/WS2 at room temperature, comprising the steps of applying a laser to the Bi2Se3/WS2, writing a submicron pixel, wherein the submicron pixel has a circular polarization, modifying the circular polarization, allowing the circular polarization to be tuned across a range of 39.9%, tuning photoluminescence intensity, and tuning photoluminescence peak position. A method of growing Bi2Se3/WS2 as a nano-material or two-dimensional heterostructure for laser-writing submicron pixels with tunable circular polarization and write-read-erase-reuse capability on the Bi2Se3/WS2 heterostructure at room temperature.

Abstract: Systems and methods are provided for label placement that provide necessary information on a map when map features conflict without significantly impacting performance. Embodiments of the present disclosure can handle placement of map labels that vary in size, have prioritized label/feature groupings, apply to point, line, and area features, minimize overlap when there is no more open space, and render fast enough for interactive viewing.

Abstract: Tunable thermochromic materials comprise a metal salt with a varying proportion of two different anions and an organic ligand. Partial substitution via doping during the initial synthesis with a macro-structurally similar (generating an isostructural material) yet chemically different anion creates a material with altered thermochromic properties. For example, in bromide-doped bis(N,N?-diethylethylenediamine)nickel(II)) tetrafluoroborate; both the tetrafluoroborate (BF4-) and bromide (Br—) derivatives are isostructural. Substitution of BF4- for Br— causes a decrease in the materials' thermochromic transition temperature by approximately 10° C.

Abstract: A MEMS nanotube based radiation sensor that is low cost, low power, compact, reliable and is applicable across many fields and a method for fabricating such a sensor are described. Each sensor may be connected to an array of similar but distinct sensors that leverage different materials and nanotube technology to detect radiation.

Abstract: Light controlled switching modules are provide. In embodiments, a light controlled switching module includes: a housing; a light controlled semiconductor switch mounted to the housing, the light controlled semiconductor switch including a semiconductor body; at least one light source mounted to the housing in a spaced relationship from the light controlled semiconductor switch and positioned to direct light emitted from the at least one light source toward the semiconductor body; and first and second electrodes mounted to the housing and connected to the light controlled semiconductor switch, wherein the first and second electrodes are configured to have variable resistance between the first and the second electrode.

Abstract: A pegylated, circularly permuted construct of the CapD enzyme (a gamma glutamyl transferase enzyme acting as a hydrolase specific to poly-?-D-glutamic acid) is used to treat anthrax and other bacterial infections, including but not limited to infection with strains that are resistant to available antibiotics.

Abstract: Described herein are biofilm bioreactors for synthesis at the interface between two liquids, and methods of using such bioreactors for the biotransformation of feedstocks into chemical products. Also contemplated is the extraction of such products.

Abstract: Systems and methods for growth of silicon carbide over a layer comprising graphene and/or hexagonal boron nitride, and related articles, are generally described. In some embodiments, a SiC film is fabricated over a layer comprising graphene and/or hexagonal boron nitride, which in turn is disposed over a substrate. The layer and/or the substrate may be lattice-matched with the SiC film to reduce defect density in the SiC film. The fabricated SiC film may then be removed from the substrate via, for example, a stressor attached to the SiC film. In certain cases, the layer serves as a reusable platform for growing SiC films and also serves a release layer that allows fast, precise, and repeatable release at the layer surface.

Abstract: A water submersion detection system that may include a buoyant device having a conductive surface, and a housing enclosing the buoyant device and having conductive elements. The conductive elements may include a first set of one or more nonadjacent conductive elements that are electrically connected, and a second set of one or more nonadjacent conductive elements that are electrically connected. The system may include a submersion alert device that activates responsive to the buoyant device contacting the housing.