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Results 1851–1875 of 2,476

Reconfigurable electronics using conducting metal-organic frameworks
Patent • #9,711,743. A device including a porous metal organic framework (MOF) disposed between two terminals, the device including a first state wherein the MOF is infiltrated by a guest species to form an electrical path between the terminals and a second state wherein the electrical conductivity of the MOF is less...

Reconfigurable optical-to-optical frequency conversion method and apparatus
Patent • #9,625,785. A photonic device is provided for impressing a modulation pattern on an optical carrier. The device includes a unit in which a photodetector and an optical microresonator are monolithically integrated. The device further includes an optical waveguide evanescently coupled to the optical microresonator and having at least an upstream...

Reconfigurable phononic devices for classical and quantum processing systems
Patent • #12112236. Various reconfigurable phononic devices, including phase shifters, mirrors, Mach Zehnder interferometers, memories, and transducers for use in both classical and quantum computing systems are disclosed. The individual phononic devices may be combined in various configurations to implement desired, more complex functionality. The phononic devices may be coupled together to...

Reconfigureable network node
Patent • #7,355,986. Nodes in a network having a plurality of nodes establish communication links with other nodes using available transmission media, as the ability to establish such links becomes available and desirable. The nodes predict when existing communications links will fail, become overloaded or otherwise degrade network effectiveness and act to...

Rectenna that converts infrared radiation to electrical energy
Patent • #9,437,629. Technologies pertaining to converting infrared (IR) radiation to DC energy are described herein. In a general embodiment, a rectenna comprises a conductive layer. A thin insulator layer is formed on the conductive layer, and a nanoantenna is formed on the thin insulator layer. The thin insulator layer acts as...

Red-Emitting Phosphors for Solid-State Lighting
Featured Opportunity • Sandia has developed red-emitting phosphors that will help to transform the cold blue of many current light-emitting diodes (LEDs) into the warm white that is preferred for general lighting. This advance could help move solid-state lighting (SSL) into broader applications and market spaces. This class of rare-earth doped tantalates has...

Redox-active oxide materials for thermal energy storage
Patent • #10,800,665. Thermochemical storage materials having the general formula A.sub.xA'.sub.1-xB.sub.yB'.sub.1-yO.sub.3-.delta., where A=La, Sr, K, Ca, Ba, Y and B=Mn, Fe, Co, Ti, Ni, Cu, Zr, Al, Y, Cr, V, Nb, Mo, are disclosed. These materials have improved thermal storage energy density and reaction kinetics compared to previous materials. Concentrating solar power...

Reduced weight decontamination formulation utilizing a solid peracid compound for neutralization of chemical and biological warfare agents
Patent • #8,022,265. A reduced weight decontamination formulation that utilizes a solid peracid compound (sodium borate peracetate) and a cationic surfactant (dodecyltrimethylammonium chloride) that can be packaged with all water removed. This reduces the packaged weight of the decontamination formulation by .about.80% (as compared to the "all-liquid" DF-200 formulation) and significantly lowers...

Reduced-bias multi-resolution coherent change detection
Patent • #10,345,440. Described herein are various technologies relating to generating a reduced bias multi-resolution (RBMR) coherent change detection (CCD) image product. A low bias, low resolution (LBLR) CCD image product is generated based upon a first SAR image of a scene and a second SAR image of the scene, where each...

Reduced-impact sliding pressure control valve for pneumatic hammer drill
Patent • #8,176,995. A method and means of minimizing the effect of elastic valve recoil in impact applications, such as percussive drilling, where sliding spool valves used inside the percussive device are subject to poor positioning control due to elastic recoil effects experienced when the valve impacts a stroke limiting surface. The...

Reducing current reversal time in electric motor control
Patent • #8,878,473. The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this inductive current is used to initiate reverse current flow in the motor.

Reducing injection loss in drill strings
Patent • #6,791,470. A system and method for transferring wave energy into or out of a periodic structure having a characteristic wave impedance profile at a prime frequency, the characteristic wave impedance profile comprising a real portion and an imaginary portion, comprising: locating one or more energy transfer elements each having a...

Reduction of background clutter in structured lighting systems
Patent • #7,742,640. Methods for segmenting the reflected light of an illumination source having a characteristic wavelength from background illumination (i.e. clutter) in structured lighting systems can comprise pulsing the light source used to illuminate a scene, pulsing the light source synchronously with the opening of a shutter in an imaging device,...

Reduction of radar cross-section of a wind turbine
Patent • #9,404,371. The various technologies presented herein relate to formation of a wind turbine blade having a reduced radar signature in comparison with a turbine blade fabricated using conventional techniques. Various techniques and materials are presented to facilitate reduction in radar signature of a wind turbine blade, where such techniques and...

Reflective photovoltaics
Patent • #9,911,871. A photovoltaic module includes colorized reflective photovoltaic cells that act as pixels. The colorized reflective photovoltaic cells are arranged so that reflections from the photovoltaic cells or pixels visually combine into an image on the photovoltaic module. The colorized photovoltaic cell or pixel is composed of a set of...

Refractory high entropy alloy compact heat exchanger
Patent • Several innovative technologies, including pressure-drop minimization, advanced refractory high entropy alloys, and advanced manufacturing can provide a compact heat exchanger that extends the state-of-the-art heat-exchanger operating range. The compact heat exchanger can reduce pressure drop losses by 100 to 500%, while retaining most of the heat transfer. The compact heat...

Refractory high entropy alloy compact heat exchanger
Patent • #11725889. Several innovative technologies, including pressure-drop minimization, advanced refractory high entropy alloys, and advanced manufacturing can provide a compact heat exchanger that extends the state-of-the-art heat-exchanger operating range. The compact heat exchanger can reduce pressure drop losses by 100 to 500%, while retaining most of the heat transfer. The compact...

Refractory High-Entropy Alloy (RHEA) Compact Heat Exchanger
Featured Opportunity • Recent breakthroughs in hybrid advanced manufacturing and advanced alloys can significantly extend the temperature and pressure operational range of heat exchangers Description When it comes to their material properties, high-efficiency compact heat exchangers require a suitable combination of creep, high-temperature strength, oxidation resistance, and thermal shock. Current heat exchanger designs...

Regenerable particulate filter
Patent • #7,527,671. A method of making a three-dimensional lattice structure, such as a filter used to remove particulates from a gas stream, where the physical lattice structure is designed utilizing software simulation from pre-defined mass transfer and flow characteristics and the designed lattice structure is fabricated using a free-form fabrication manufacturing...
Results 1851–1875 of 2,476