Abstract: Methods of making molybdenum sulfide (MoS2) on a stretchable substrate are disclosed. The method includes magnetron sputtering MoS2 onto a stretchable substrate, such as a stretchable polymeric material, at low temperatures to form a film precursor, and illumination annealing the film precursor to form high quality MoS2. The illumination source may be a laser or other source of radiation. Also, two-dimensional nanoelectronic devices made by the methods and/or from the high quality MoS2 are disclosed.

Abstract: Carbon nanotube threads are coated with a coating solution such as dimethylformamide (DMF), ethylene glycol (EG), polyethylene glycol (PEG), PEG200 (PEG with an average molecular weight of approximately 200 grams per mole (g/mol)), PEG400 (PEG with an average molecular weight of approximately 400 g/mol), aminopropyl terminated polydimethylsiloxane (DMS 100 cP),polymide, poly(methylhydrosiloxane), polyalkylene glycol, (3-aminopropyl)trimethoxysilane, hydride functional siloxane O resin, platinum (0) -1,3-divinyl-1,1,3,3-tetramethyl-disiloxane, moisture in air, acetic acid, water, poly(dimethylsiloxane) hydroxy terminated, (3-glycidyloxypropyl)-trimethoxysilane or a combination thereof. The coated carbon nanotubes may be used to stitch in a Z-direction into a composite such as a polymer prepreg to strengthen the composite. The stitching may occur using a sewing machine.

Abstract: Apparatuses, methods, and computer program products for analyzing target compounds. An excitation signal comprising light having a time-varying intensity is transmitted into a target compound. In response to receiving the excitation signal, the target compound generates an emission signal. To increase the intensity of the emission signal, a fluorophore may be provided to the target compound. The fluorophore may be configured to react with a characteristic of the target compound so that the fluorophore generates the emission signal in response to the presence of both the characteristic and the excitation signal. The emission signal may be compared to the excitation signal in a frequency domain to determine a phase of the emission signal relative to the excitation signal. The phase may be used to determine a luminescence lifetime of the emission signal. If the detected luminescence lifetime matches an expected luminescence lifetime, the target compound likely includes the characteristic.

Abstract: An analog neuromorphic circuit is disclosed, having input voltages applied to a plurality of inputs of the analog neuromorphic circuit. The circuit also includes a plurality of resistive memories that provide a resistance to each input voltage applied to each of the inputs so that each input voltage is multiplied in parallel by the corresponding resistance of each corresponding resistive memory to generate a corresponding current for each input voltage and each corresponding current is added in parallel. The circuit also includes at least one output signal that is generated from each of the input voltages multiplied in parallel with each of the corresponding currents for each of the input voltages added in parallel. The multiplying of each input voltage with each corresponding resistance is executed simultaneously with adding each corresponding current for each input voltage.

Abstract: An analog neuromorphic circuit is disclosed having resistive memories that provide a resistance to each corresponding input voltage signal. Input voltages are applied to the analog neuromorphic circuit. Each input voltage represents a vector value that is a non-binary value included in a vector that is incorporated into a dot-product operation with weighted matrix values included in a weighted matrix. A controller pairs each resistive memory with another resistive memory. The controller converts each pair of resistance values to a single non-binary value. Each single non-binary value is mapped to a weighted matrix value included in the weighted matrix that is incorporated into the dot-product operation with the vector values included in the vector. The controller generates dot-product operation values from the dot-product operation with the vector and the weighted matrix where each dot-product operation is a non-binary value.

Abstract: An analog neuromorphic circuit is disclosed having resistive memories that provide a resistance to each corresponding input voltage signal. Input voltages are applied to the analog neuromorphic circuit. Each input voltage represents a vector value that is a non-binary value included in a vector that is incorporated into a dot-product operation with weighted matrix values included in a weighted matrix. A controller pairs each resistive memory with another resistive memory. The controller converts each pair of resistance values to a single non-binary value. Each single non-binary value is mapped to a weighted matrix value included in the weighted matrix that is incorporated into the dot-product operation with the vector values included in the vector. The controller generates dot-product operation values from the dot-product operation with the vector and the weighted matrix where each dot-product operation is a non-binary value.

Abstract: A system is provided for interfacing a Full Authority Digital Engine Control (FADEC) system with engine sensors and actuators using miniaturized Low Temperature Co-fired Ceramic (LTCC) substrates operating as smart notes that communicate digitally over a data bus to a miniaturized LTCC operating as a data concentrator. The use of smart nodes and/or data concentrators assembled on LTCC substrates provides enhanced thermal and vibration performance along with resistance to hydration, improved reliability and reduced overall size of the circuitry unit.

Abstract: Methods of making molybdenum sulfide (MoS2) on a stretchable substrate are disclosed. The method includes magnetron sputtering MoS2 onto a stretchable substrate, such as a stretchable polymeric material, at low temperatures to form a film precursor, and illumination annealing the film precursor to form high quality MoS2. The illumination source may be a laser or other source of radiation. Also, two-dimensional nanoelectronic devices made by the methods and/or from the high quality MoS2 are disclosed.

Abstract: Lithium sulfur batteries are described, especially ones that are flexible for wearing about an appendage of a wearer. Such batteries have a lithium metal anode, a sulfur cathode comprising sulfur, a conductive carbon, a lithium supertonic solid-state conductor, and a dendritic or hyperbranched polymer binder, an electrolyte layer between the lithium metal anode and the sulfur cathode, and a current collector positioned on the sulfur cathode opposite the electrolyte layer.

Abstract: A persistent color change liquid indicator includes a backing layer, a penetration layer, and a reaction layer. The backing layer has an indication color. The penetration layer includes a liquid structure to allow a liquid to travel through the penetration layer to the reaction layer. The penetration layer is opaque when dry and translucent when exposed to the liquid is to allow the indication color to be visible. The reaction layer reacts to the presence of the liquid such that the visibility of the indication color persists after exposure to the liquid ceases.

Abstract: Methods of growing boron nitride nanotubes and silicon nanowires on carbon substrates formed from carbon fibers. The methods include applying a catalyst solution to the carbon substrate and heating the catalyst coated carbon substrate in a furnace in the presence of chemical vapor deposition reactive species to form the boron nitride nanotubes and silicon nanowires. A mixture of a first vapor deposition precursor formed from boric acid and urea and a second vapor deposition precursor formed from iron nitrate, magnesium nitrate, and D-sorbitol are provided to the furnace to form boron nitride nanotubes. A silicon source including SiH4 is provided to the furnace at atmospheric pressure to form silicon nanowires.

Abstract: Nonmetallic tools such as rotary bits, circular blades, and scything tools are described that may be suitable for removing cured flexibilized epoxy gap-filler materials from gaps between soft composite materials. The nonmetallic tools may be formed from various plastic or composite materials that are sufficiently hard to cut through the gap-filler material while being sufficiently soft to avoid damaging adjacent areas of soft composite materials. Methods for using the nonmetallic tools may include attaching the nonmetallic tools to a suitable machine-driven tool and contacting the nonmetallic tools to a material to be cut, shaped, or drilled.

Abstract: A vectorial optical field generator includes a radiation source a modulator surface, a first quarter wave plate, a second quarter wave plate, and an output plane. The radiation source emits an input radiation along a path and the modulator surface is positioned along the path and configured to modulate a phase, an amplitude, a polarization ratio, and a retardation of the input radiation along a fourth area of the modulator surface. The output plane is positioned along the path and receives output radiation resulting from modulating the input radiation with the modulator surface, the first quarter wave plate, and the second quarter wave plate.

Abstract: A sensor transmitter for communicating wirelessly a presence of a condition within a metal enclosure includes a power supply, at least one sensor where each sensor senses a presence of a condition, and a low frequency generator positioned within a metal enclosure and electrically coupled to the power supply and the at least one sensor. The low frequency generator transmits a low frequency wireless signal indicative of the presence of the condition within the metal enclosure when the condition is present at one sensor.

Abstract: A system and device for filtering fluids using graphene oxide (GO) is provided. GO-based filters may be used for the efficient removal of microorganisms from organic and aqueous liquids and may be used to prevent fuel biodeterioration. Functionalization of graphene oxide with reactive oxygen functional groups provides physical properties to the GO including high solubility in polar solvents, good colloidal properties, low production costs, low toxicity, and a large surface area which can be decorated with antimicrobial agents including nanosilver. GO may be used as a filtration media for efficient removal of bacteria and to remove small amounts of water from hydrocarbon fuels. The GO filter media may be made of a plurality of GO particles, a structural core coated with GO, a non-porous structural membrane coated with GO, or a filtering membrane coated with GO. A method for sampling impurities found in an environmental sample is also provided.

Abstract: Disclosed are articles comprising layered nanocrystalline calcite and methods for forming nanocrystalline calcite layers and compositions comprising nanocrystalline calcite layers.

Abstract: A porphyrin of general formula (I) having a transition metal (II) cation in its core and one or two mono-, di-, tri-, tetra- or penta-halophenyl groups and two or three pyridyl groups in the 5, 10, and/or 15 positions of the porphyrin ring contributing to a positive two or three charge neutralized by the presence of a respective number of anions. The porphyrin of the general formula (I) characterized by killing pseudomonas bacteria in the dark.

Abstract: A vectorial optical field generator includes a radiation source a modulator surface, a first quarter wave plate, a second quarter wave plate, and an output plane. The radiation source emits an input radiation along a path and the modulator surface is positioned along the path and configured to modulate a phase, an amplitude, a polarization ratio, and a retardation of the input radiation along a fourth area of the modulator surface. The output plane is positioned along the path and receives output radiation resulting from modulating the input radiation with the modulator surface, the first quarter wave plate, and the second quarter wave plate.

Abstract: A porphyrin of general formula (I) having a transition metal (II) cation in its core and one or two mono-, di-, tri-, tetra- or penta-halophenyl groups and two or three pyridyl groups in the 5, 10, and/or 15 positions of the porphyrin ring contributing to a positive two or three charge neutralized by the presence of a respective number of anions. The porphyrin of the general formula (I) characterized by killing pseudomonas bacteria in the dark.

Abstract: Methods for magnetically enhanced physical vapor deposition are disclosed. The methods include providing a magnetically enhanced vapor deposition device defining a vapor deposition chamber, having a magnetic field source proximate a magnetron target that is positioned within the vapor deposition chamber and coupled to a power source, and having a substrate holder positioned within the vapor deposition chamber, placing a substrate in the substrate holder, activating the magnetic field source to provide a magnetic field that controls a charged particle flux within the physical vapor deposition chamber, and activating the power source thereby depositing a few-layer film of the material comprising the magnetron target onto the substrate. The few-layer film may be a transition metal dichalcogenide, such as MoS2.