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3D Printed Dissolvable Molds for Scintillators
Featured Opportunity • 3D printed dissolvable molds allow for efficient net-shape production of complex detectors while eliminating risk of breakage during mold removal 3D PVA printed molds Scintillators are widely used as detectors across many fields including medical diagnostics, high energy physics, and geophysical exploration. The market for scintillators calls for a variety...

3D target array for pulsed multi-sourced radiography
Patent • #9,269,524. The various technologies presented herein relate to the generation of x-rays and other charged particles. A plurality of disparate source materials can be combined on an array to facilitate fabrication of co-located mixed tips (point sources) which can be utilized to form a polychromatic cloud, e.g., a plurality of...

3D-printed apparatus for efficient fluid-solid contact
Patent • #10,493,693. Additively manufactured monolithic structures for containing and directing flows of fluids are described herein, which can achieve high contact area between fluids and solids while maintaining uniform flow conditions and requiring low applied pressures to yield desired flow rates, for use in heat exchangers, chromatography columns, catalytic converters, etc....

Accommodating subject and instrument variations in spectroscopic determinations
Patent • #7,098,037. A method and apparatus for measuring a biological attribute, such as the concentration of an analyte, particularly a blood analyte in tissue such as glucose. The method utilizes spectrographic techniques in conjunction with an improved instrument-tailored or subject-tailored calibration model. In a calibration phase, calibration model data is modified...

Acoustic sensor for real-time control for the inductive heating process
Patent • #6,628,404. Disclosed is a system and method for providing closed-loop control of the heating of a workpiece by an induction heating machine, including generating an acoustic wave in the workpiece with a pulsed laser; optically measuring displacements of the surface of the workpiece in response to the acoustic wave; calculating...

Active mechanical-environmental-thermal MEMS device for nanoscale characterization
Patent • #10,641,733. A microelectromechanical system (MEMS) device can be used for quantitative mechanical testing of materials within a controlled (chemical and temperature) environment, with the ability for electrochemical control to the specimen, that is coupled with a complimentary in-situ characterization technique.

Active micromixer using surface acoustic wave streaming
Patent • #7,942,568. An active micromixer uses a surface acoustic wave, preferably a Rayleigh wave, propagating on a piezoelectric substrate to induce acoustic streaming in a fluid in a microfluidic channel. The surface acoustic wave can be generated by applying an RF excitation signal to at least one interdigital transducer on the...

Active optical device enabled by dielectric metamaterials
Patent • #10,361,250. An array of dielectric resonators is formed on a substrate. Each resonator includes an active medium having an optical transition that is operative in a process of photodetection or photoemission. The active media each include a quantum well multilayer. The dielectric resonators in the array are each dimensioned to...

Active optical zoom system
Patent • #6,977,777. An active optical zoom system changes the magnification (or effective focal length) of an optical imaging system by utilizing two or more active optics in a conventional optical system. The system can create relatively large changes in system magnification with very small changes in the focal lengths of individual...

Active shunt capacitance cancelling oscillator circuit
Patent • #6,624,708. An oscillator circuit is disclosed which can be used to produce oscillation using a piezoelectric crystal, with a frequency of oscillation being largely independent of any shunt capacitance associated with the crystal (i.e. due to electrodes on the surfaces of the crystal and due to packaging and wiring for...

Active terahertz metamaterial devices
Patent • #7826504. Metamaterial structures are taught which provide for the modulation of terahertz frequency signals. Each element within an array of metamaterial (MM) elements comprises multiple loops and at least one gap. The MM elements may comprise resonators with conductive loops and insulated gaps, or the inverse in which insulated loops...

Actuator device utilizing a conductive polymer gel
Patent • #6,685,442. A valve actuator based on a conductive polymer gel is disclosed. A nonconductive housing is provided having two separate chambers separated by a porous frit. The conductive polymer is held in one chamber and an electrolyte solution, used as a source of charged ions, is held in the second...

Adaptive method with intercessory feedback control for an intelligent agent
Patent • #6,754,643. An adaptive architecture method with feedback control for an intelligent agent provides for adaptively integrating reflexive and deliberative responses to a stimulus according to a goal. An adaptive architecture method with feedback control for multiple intelligent agents provides for coordinating and adaptively integrating reflexive and deliberative responses to a...

Adaptive neural network management system
Patent • #10,891,540. A method and computer system for managing a neural network. Data is sent into an input layer in a portion of layers of nodes in the neural network. The data moves on an encode path through the portion such that an output layer in the portion outputs encoded data....

Additive manufacturing of crystalline materials
Patent • #10,214,833. The present invention relates to additive manufacturing methods, in which crystalline materials can be formed by using a liquid precursor. In particular embodiments, the crystalline material is a perovskite. The methods include the use of a thermal voxel, which can be translated to form any arbitrary pattern of initial...

Additive manufacturing print-heads for exotic material applications
Patent • #11,084,211. Described herein is an additive manufacturing apparatus that is well-suited for constructing piezoelectric sensors. The additive manufacturing apparatus includes an extrusion nozzle formed of a conductive material such as aluminum. The extrusion nozzle has a channel by way of which printing material exits the extrusion nozzle, wherein a build...

Additive Manufacturing Printhead for Exotic Materials
Featured Opportunity • A customized printhead for safe and high-quality additive manufacturing of exotic and piezo-responsive materials Recent adaptations to fused deposition modeling (FDM) additive manufacturing (AM) techniques have created pathways for the printing of exotic materials, including those that are electrically or magnetically oriented or chemically endo or exothermic. AM printing of...

Additive-mixing fuel-injection system for internal combustion engines
Patent • #10,202,929. A system and method for fast control of the timing of combustion in an internal combustion engine, comprising actuating a fast-acting fuel-additive supply valve to meter a variable amount of fuel additive into a fuel stream, thereby forming an additive-enhanced fuel with an additive concentration that can be dynamically...

Additively Manufactured Crystalline Materials
Featured Opportunity • Highly localized, site-specific additive manufacturing of high power conversion efficiency (PCE) crystalline materials for semiconductors and functional devices Shown above: Laser direct-write of free-form perovskites Semiconductors are foundational materials that underpin all modern electronic devices ranging from integrated circuits, LEDs, and photovoltaics. One class of crystalline semiconductor material that has...

ADDITIVELY MANUFACTURED LOCALLY RESONANT INTERPENETRATING LATTICE STRUCTURE
Patent • #11,195,504. A method, system, and apparatus for fabricating an acoustic metamaterial is provided. In an embodiment, a method for fabricating an acoustic metamaterial includes determining at least one tuned physical property for each of a plurality of micro-resonators according to a desired acoustic property of the acoustic metamaterial. For a...

ADDSec: Artificial Diversity & Defense Security
Software • Sandia researchers have developed a technology that automatically detects and responds to potential threats in under 1 millisecond—preventing an attack that can have a devastating impact on the nation’s economy and public health and safety. Sandia’s detection approach is a set of machine learning algorithms that recognizes anomalous behavior and then...
Results 1–25 of 2,279