Patent • #US9117560B1. Materials and methods of making densified waste forms for temperature sensitive waste material, such as nuclear waste, formed with low temperature processing using metallic powder that forms the matrix that encapsulates the temperature sensitive waste material. The densified waste form includes a temperature sensitive waste material in a physically...
Search
Deployable centralizers
Patent • #US9580976B1. A centralizer assembly is disclosed that allows for the assembly to be deployed in-situ. The centralizer assembly includes flexible members that can be extended into the well bore in situ by the initiation of a gas generating device. The centralizer assembly can support a large load carrying capability compared...
Deployable centralizers
Patent • #US10344542B1. A centralizer assembly is disclosed that allows for the assembly to be deployed in-situ. The centralizer assembly includes flexible members that can be extended into the well bore in situ by the initiation of a gas generating device. The centralizer assembly can support a large load carrying capability compared...
Deployable Centralizers for Directional Drilling
Featured Opportunity • Sandia National Laboratories has developed a robust centralizer that actively centers casing in deviated, directional or horizontally drilled well bores. Traditional centralizers, most commonly based on a bow spring design, are economically optimized for use in vertically drilled wells, however, they can lack sufficient force to centralize casing in deviated...
Depolymerization of polyolefins for biological conversion
Patent • #US12753290B1. A method for depolymerizing polyolefins. The method includes a sulfonation step including contacting a polyolefin with a sulfonating agent in the absence of an organic solvent to provide a sulfonated polyolefin and a bond cleavage step including contacting a metal catalyst and an oxidant with the sulfonated polyolefin. A...
Design, decoding and optimized implementation of SECDED codes over GF(q)
Patent • #US8756484B1. A plurality of columns for a check matrix that implements a distance d linear error correcting code are populated by providing a set of vectors from which to populate the columns, and applying to the set of vectors a filter operation that reduces the set by eliminating therefrom all...
Detection and imaging of electric fields, using polarized neutrons
Patent • #US12055500B1. A method and corresponding apparatus are provided for measuring neutron spin precession in an electric field with high sensitivity suitable for practical applications in non-destructive testing, imaging, and the like. Production of a neutron beam with a polarization vector P is followed by transmitting the spin-polarized neutron beam through...
Detection and Tracking of Low Signal-to-Noise Ratio Moving Targets in Remote Sensing Imagery
Patent • #US12685202B1. A method and corresponding system for employing fluid vorticity to drive an underfilling process with a magnetic particle-loaded curing resin is disclosed. An applied multiaxial magnetic field drives the magnetic particles, and thus the curing resin, throughout the gap between a die and corresponding carrier chip. A magnetic field...
Detection of active and latent infections with microfluidic devices and systems thereof
Patent • #US10786811B1. The present invention relates to methods of detecting one or more targets of interest in a sample. In one instance, the target can be correlated to an active infection (e.g., by a virus and/or a bacterium). Methods can include treating the sample with a dissociation agent, thereby releasing the...
Detection of arcing location on photovoltaic systems using filters
Patent • #US9897642B1. The present invention relates to photovoltaic systems capable of identifying the location of an arc-fault. In particular, such systems include a unique filter connected to each photovoltaic (PV) string, thereby providing a unique filtered noise profile associated with a particular PV string. Also described herein are methods for identifying...
Detection of bioagents using a shear horizontal surface acoustic wave biosensor
Patent • #US10031135B2. Viruses and other bioagents are of high medical and biodefense concern and their detection at concentrations well below the threshold necessary to cause health hazards continues to be a challenge with respect to sensitivity, specificity, and selectivity. Ideally, assays for accurate and real time detection of viral agents and...
Detection of cholinesterase inhibition with microfluidic devices and systems thereof
Patent • #US11680946B1. The present invention relates to methods of conducting cholinesterase inhibition assays. In one instance, the assays can be configured to determine the presence of inactivated and activated cholinesterases. Also described herein are microfluidic devices and systems for conducting such assays.
Detection of electrophilic and nucleophilic chemical agents
Patent • #US8247554B1. A “real time” method for detecting chemical agents generally and particularly electrophilic and nucleophilic species by employing tunable, precursor sensor materials that mimic the physiological interaction of these agents to form highly florescent berberine-type alkaloids that can be easily and rapidly detected. These novel precursor sensor materials can be...
Detection of electrophilic and nucleophilic chemical agents
Patent • #US8802444B1. A “real time” method for detecting chemical agents generally and particularly electrophilic and nucleophilic species by employing tunable, precursor sensor materials that mimic the physiological interaction of these agents to form highly florescent berberine-type alkaloids that can be easily and rapidly detected. These novel precursor sensor materials can be...
Detection of electrophilic and nucleophilic chemical agents
Patent • #US7449579B1. A "real time" method for detecting electrophilic and nucleophilic species generally by employing tunable, precursor sensor materials that mimic the physiological interaction of these agents to form highly florescent berberine-type alkaloids that can be easily and rapidly detected. These novel precursor sensor materials can be tuned for reaction with...
Detection of gas leakage
Patent • #US8955370B1. A method of detecting leaks and measuring volumes as well as a device, the Power-free Pump Module (PPM), provides a self-contained leak test and volume measurement apparatus that requires no external sources of electrical power during leak testing or volume measurement. The PPM is a portable, pneumatically-controlled instrument capable...
Detection of gas leakage
Patent • #US8201438B1. A method of detecting leaks and measuring volumes as well as an apparatus, the Power-free Pump Module (PPM), that is a self-contained leak test and volume measurement apparatus that requires no external sources of electrical power during leak testing or volume measurement, where the invention is a portable, pneumatically-controlled...
Determining position inside building via laser rangefinder and handheld computer
Patent • #US7646473B1. An apparatus, computer software, and a method of determining position inside a building comprising selecting on a PDA at least two walls of a room in a digitized map of a building or a portion of a building, pointing and firing a laser rangefinder at corresponding physical walls, transmitting...
Deterrence of device counterfeiting, cloning, and subversion by substitution using hardware fingerprinting
Patent • #US8848905B1. Deterrence of device subversion by substitution may be achieved by including a cryptographic fingerprint unit within a computing device for authenticating a hardware platform of the computing device. The cryptographic fingerprint unit includes a physically unclonable function (“PUF”) circuit disposed in or on the hardware platform. The PUF circuit...
Detonator comprising a nonlinear transmission line
Patent • #US8922973B1. Detonators are described herein. In a general embodiment, the detonator includes a nonlinear transmission line that has a variable capacitance. Capacitance of the nonlinear transmission line is a function of voltage on the nonlinear transmission line. The nonlinear transmission line receives a voltage pulse from a voltage source and...
Device and method for constructing and displaying high quality images from imaging data by transforming a data structure utilizing machine learning techniques
Patent • #US10867415B1. Constructing a computer image from raw imaging data or encoded imaging data by transforming a first data structure in which the raw imaging data or the encoded imaging data is stored into a second data structure storing reorganized imaging data. The raw imaging data or the encoded imaging data...
Device and method for random walk simulation
Patent • #US12572818B2. A method for simulating a random walk using spiking neuromorphic hardware is provided. The method comprises receiving, by a buffer count neuron, spiking inputs from upstream mesh nodes, wherein the inputs include information packets comprising information associated with a simulation of a random walk process. A buffer generator neuron...
Device and methods for writing and erasing analog information in small memory units via voltage pulses
Patent • #US9947379B1. Devices and methods for non-volatile analog data storage are described herein. In an exemplary embodiment, an analog memory device comprises a potential-carrier source layer, a barrier layer deposited on the source layer, and at least two storage layers deposited on the barrier layer. The memory device can be prepared...
Device for measuring a characteristic of a color cathode ray tube
Patent • #US5049791A_. A device for measuring convergence of a color CRT including image pickup means for producing three color image signals with respect to three color test patterns constituting a composite test pattern presented on a viewing screen of a color CRT, change means for changing the image magnification of said...
Devices and methods for increasing the speed and efficiency at which a computer is capable of modeling a plurality of random walkers using a density method
Patent • #US11409922B2. A method for increasing a speed or energy efficiency at which a computer is capable of modeling a plurality of random walkers. The method includes defining a virtual space in which a plurality of virtual random walkers will move among different locations in the virtual space, wherein the virtual...
Results 301–325 of 1,914