The disclosed technology provides a vitrimeric poly(diketoenamine) network comprising: a plurality of multifunctional triketone dimers; a plurality of multifunctional amine species containing primary or secondary amine groups, but no tertiary amine groups; and optionally, one or more amine-reactive groups. The disclosed technology also provides a method of making a vitrimeric polymer network, comprising: obtaining multifunctional triketone dimers; obtaining a multifunctional imine compound, with imine groups blocking amine groups; mixing the multifunctional triketone dimers with the multifunctional imine compound, thereby forming a polymer precursor mixture; applying the polymer precursor mixture onto a substrate; and allowing the multifunctional imine compound to undergo hydrolysis with water, unblocking the amine functional groups and generating a multifunctional amine compound. The multifunctional amine compound reacts with the multifunctional triketone dimers to form a vitrimeric polymer network. The vitrimeric polymer network may be depolymerized back to monomers, which may be repolymerized in a closed-loop system.
The disclosed technology provides a vitrimeric poly(diketoenamine) network comprising: a plurality of multifunctional triketone dimers; a plurality of multifunctional amine species containing primary or secondary amine groups, but no tertiary amine groups; and optionally, one or more amine-reactive groups. The disclosed technology also provides a method of making a vitrimeric polymer network, comprising: obtaining multifunctional triketone dimers; obtaining a multifunctional imine compound, with imine groups blocking amine groups; mixing the multifunctional triketone dimers with the multifunctional imine compound, thereby forming a polymer precursor mixture; applying the polymer precursor mixture onto a substrate; and allowing the multifunctional imine compound to undergo hydrolysis with water, unblocking the amine functional groups and generating a multifunctional amine compound. The multifunctional amine compound reacts with the multifunctional triketone dimers to form a vitrimeric polymer network. The vitrimeric polymer network may be depolymerized back to monomers, which may be repolymerized in a closed-loop system.
C08G 12/00 - Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
3.
System and method for unsupervised concept extraction from reinforcement learning agents
Described is a method for improved performance of agent-based machine learning. The method includes training a reinforcement learning (RL) agent on an image processing task. A dataset of states and corresponding actions is then extracted from the RL agent. A measure of attention is applied to an input space of the RL agent. During action selection by the RL agent, image patches of the input space are extracted based on the applied measure of attention. Portions of a set of inputs are clustered based on similarity to the image patches, generating a set of clusters having cluster centers. Non-semantic concept labels are provided as distances to the cluster centers for each state in the dataset.
B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers
G06F 18/21 - Design or setup of recognition systems or techniquesExtraction of features in feature spaceBlind source separation
G06F 18/214 - Generating training patternsBootstrap methods, e.g. bagging or boosting
G06F 30/20 - Design optimisation, verification or simulation
G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces
G06V 10/762 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using clustering, e.g. of similar faces in social networks
G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
Described is a system for performing a simulated vehicle control task based on adversarial decision analysis. Empirical game theoretic analyses are performed between an evolving and an adversary population of neural network strategies. Each empirical game theoretic analysis includes using a neuroevolution procedure to perform a fitness-based selection of a strategy in the evolving population that out-performs the adversary population. Using an empirical game theory procedure, the neuroevolution procedure is iteratively run and the selected strategy is added to the adversary population with each iteration, resulting in monotonic strategy improvement with each iteration. Following the empirical game theoretic analyses, a final strategy is selected for the evolving population and the adversary population using a tournament selection procedure. The final strategy is used to train a neural network which is used to perform a simulated vehicle control task.
G06N 3/086 - Learning methods using evolutionary algorithms, e.g. genetic algorithms or genetic programming
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
An electronic assembly, comprising a carrier wafer of a first material, having a top wafer surface and a bottom wafer surface; said carrier wafer comprising a through-wafer cavity having walls that join said top wafer surface to said bottom wafer surface; and an insulator of a second material, different from the first material, having insulator top and bottom surfaces, joined by insulator side surfaces, and having a conducting via that passes through said insulator between said insulator top surface and said insulator bottom surface; wherein the insulator is held in said through-wafer cavity by direct contact of the insulator side surfaces with an attachment metal that fills said through-wafer cavity.
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
An exemplary receive antenna having a conductive surface. The conductive surface includes an aperture configured to operate as a slot antenna, and one or more amplifiers or buffer amplifiers is electrically connected across the aperture. At least one feed is connected between the one or more amplifiers and the aperture. An input impedance ZB of each of the one or more amplifiers at the at least one feed location is lower than 0.5× an impedance of the aperture ZA at a first resonance frequency.
Described is a system for optimizing controllers for micro-air vehicles. The system identifies binary rules that lead to a desired behavior of a micro-air vehicle. The binary rules are identified by sampling rule-sets from a probability distribution over a search space. A fitness value of each rule-set for the desired behavior is determined, and top-performing rule-sets are selected. The top-performing rule-sets are used to update the probability distribution over the search space until a convergence criterion is met, resulting in a fittest rule-set. A control signal based on the identified binary rules is transmitted to one or more actuators of the micro-air vehicle.
Some variations provide an atomic instrument configured with an optically transparent and electrochemically cleanable window, comprising: a transparent first electrode; a second electrode with an atom reservoir for first metal ions; an ion conductor interposed between the first electrode and a second electrode, wherein the ion conductor is capable of transporting second metal ions, wherein the ion conductor is in contact with the first electrode and with the second electrode, and wherein the ion conductor is optically transparent; and a transparent window support in contact with the ion conductor, wherein the electrochemically cleanable window is optically transparent, wherein the transparent window support, the ion conductor, and the first electrode collectively form a transparent and electrochemically cleanable window. The disclosed technique removes adsorbed low-vapor-pressure metal thin films from the interior of windows before they become opaque, which extends system lifetime and reduces optical power requirements.
An apparatus and related method are disclosed for compensation of an antenna and/or an antenna array located at a surface that experiences environmental conditions. The apparatus can include: an embedded compensation and/or calibration structure configured to be interrogated by an electromagnetic wave, to dynamically compensate for surface erosion, thermal expansion, and/or dielectric constant changes of a surface scattering antenna; and a processor configured to: receive measurements of the compensation and/or calibration structure to determine beam pointing for dynamically varying surface conditions and perform sensing and/or seeking observation.
H01Q 5/45 - Imbricated or interleaved structuresCombined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device
H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 19/02 - Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic Details
An atomic-beam source device is configured to provide a collimated beam of atoms, wherein solid-state electrochemistry is employed to recirculate atoms that are caught on collimation channel walls. The use of solid-state electrochemistry to recirculate atoms enables a chip-scale, dark-wall, high-quality collimated beam source that does not clog over time. Some variations provide an atomic-beam source device comprising: a first electrode; a second electrode that is electrically isolated from the first electrode; a first ion conductor interposed between the first electrode and the second electrode, wherein the first ion conductor is capable of transporting metal ions, and wherein the first ion conductor is in contact with the first electrode and with the second electrode; and one or more collimation channels disposed outwardly from the first ion conductor. Methods of using the atomic-beam source device are disclosed, including methods to recirculate and reuse metal atoms adsorbed on collimation channel walls.
A phononic frequency comb enhanced clock, including a nonlinear resonator configured to generate a phononic frequency comb in response to a drive signal and an AM-to-PM noise correction circuit. The AM-to-PM noise correction circuit includes a transfer function circuit which includes a two-channel PLL and a DSP. The two-channel PLL has one channel input with the phononic frequency comb and another channel input with at least a portion of the drive signal. The DSP is configured to periodically divide a PM noise of a predetermined tooth of the phononic frequency comb by an AM noise of the portion of the drive signal to generate periodically updated noise correction signals. The clock further includes a phase shifter having an input coupled to an output of the digital signal processor and another input connected to a frequency signal of a preselected tooth of the phononic frequency comb.
H03L 7/093 - Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
H03L 7/099 - Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
12.
Method of manufacturing a ceramic structure with metal traces
A ceramic article. In some embodiments, the ceramic article includes a ceramic body composed of a ceramic material; and a first conductive trace, the first conductive trace having a first portion entirely within the ceramic material, the first portion having a length of 0.5 mm and transverse dimensions less than 500 microns, the ceramic material including a plurality of ceramic particles in a ceramic matrix.
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 23/13 - Mountings, e.g. non-detachable insulating substrates characterised by the shape
An infrared detector and a method for manufacturing it are disclosed. The infrared detector contains an absorber layer responsive to infrared light, a barrier layer disposed on the absorber layer, a plurality of contact structures disposed on the barrier layer; and an oxide layer disposed above the barrier layer and between the plurality of the contact structures, wherein the oxide layer reduces the dark current in the infrared detector. The method disclosed teaches how to manufacture the infrared detector.
An isolation system and method are disclosed. The isolation system includes a beam that includes a first end and a second end. The isolation system may include at least one clamping block comprising first elastomeric material, and the first end may be coupled with the first elastomeric material by the at least one clamping block. An end condition of the buckling beam may be varied based on compression stiffening of the first elastomeric material.
F16F 15/04 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means
15.
SWITCHED PIXEL ARRAY LiDAR SENSOR AND PHOTONIC INTEGRATED CIRCUIT
A switched pixel array LiDAR includes a transmit optical switching network and a receive optical switching network. The transmit optical switching network is connected to a transmit antenna in each pixel of the switched pixel array, and a receive optical switching network is coupled to receive antennas in each pixel. The transmit antenna length is at least 100 times greater than the transmit antenna width. The transmit optical switching network steers a transmit beam from a laser system to the transmit antenna in a selected pixel, and emits the transmit beam through a cylindrical lens towards a target. The transmit beam is reflected off the target as a receive beam passing through the cylindrical lens towards the receive antennas in the selected pixel. The receive optical switching network transmits the receive beam to an optical receiver system which generates a receive signal configured for extraction of sensor data associated with the target.
Some variations provide an additively manufactured article comprising a first region and a second region, wherein the first region is a solid region or a porous region, wherein the second region has a pore size larger than the first-region pore size, and wherein the first-region average permeability is lower than the second-region average permeability. Some variations provide a co-sintering method of making an architected material with regions having different permeabilities, in which different additive-manufacturing process parameters are applied to distinct regions of the structure. Other variations provide a wall-pinning method of making an architected material with regions having different permeabilities, in which additive-manufacturing process parameters are selected to sinter pinned feedstock powder between solid walls. Engineered structures with controlled permeability, integrated manifolds, and arbitrary geometries are disclosed, without the requirement of complex manufacturing. Many uses are described for the disclosed additively manufactured articles.
Some variations provide a polyoxalamide polymer comprising: one or more first segments containing at least one repeat unit that includes (i) a branched, aliphatic hydrocarbon species and (ii) first amide groups at internal ends of the repeat unit, wherein the first amide groups are part of oxalamide groups; one or more polymer end groups containing second amide groups that are each covalently bonded directly to one of the first amide groups, wherein the second amide groups are also part of the oxalamide groups, and wherein the oxalamide groups contain —N—C(═O)—C(═O)—N— sequences; and a reacted form of one or more multifunctional amine chain extenders or crosslinkers with an amine functionality of 3 or greater. The polyoxalamide polymer may be present in a lens, a window, a coating, or a film, for example. The polyoxalamide polymer may have UV transparency, visual transparency, NIR transparency, MWIR transparency, and/or LWIR transparency.
A low-power, chip-scale atomic beam clock is provided that maintains high precision for at least one week at any practical temperature. In some variations, the invention provides a chip-scale atomic beam clock comprising: a micro-optical bench; an atom collimator configured to generate a collimated atomic beam via differential pumping through microchannels; a VCSEL configured to emit laser photons horizontally in the plane of the micro-optical bench; an in-plane lithographically defined diffraction grating configured to split the laser photons into a first photon beam and a second photon beam; in-plane lithographically defined mirrors configured to retroflect the photon beams; in-plane photodetectors configured to detect the photon beams after being retroflected, wherein the first photon beam and the second photon beam interrogate the collimated atomic beam in-plane with the micro-optical bench. The chip-scale atomic beam clocks is capable of maintaining precise positioning, navigation, and timing in case of GPS denial or failure.
H03L 7/26 - Automatic control of frequency or phaseSynchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference
G04F 5/14 - Apparatus for producing preselected time intervals for use as timing standards using atomic clocks
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
A drive circuit with predistortion. In some embodiments, a system includes a signal input, a predistortion circuit, and an amplifier circuit. The predistortion circuit may be operatively coupled to the signal input and to the amplifier circuit and configured to modify a radio frequency (RF) signal received at the signal input to cause the amplifier circuit to drive, into a load connected to the amplifier circuit, a current that is substantially a replica of the input signal.
A self-sanitizing surface structure configured to selectively refract light, a method of fabricating a self-sanitizing surface configured to selectively refract light, and a method of decontaminating a surface using selectively refracted light. A waveguide including a support layer below a propagating layer is positioned over a substrate as a self-sanitizing layer. In the absence of a contaminant or residue on the waveguide, UV light injected into the propagating layer is constrained within the propagating layer due to total internal reflection. When a residue is present on the self-sanitizing surface structure, light may be selectively refracted at or near the interface with the residue along the side of the waveguide to destroy the residue. The self-sanitizing surface structure may be configured to refract a suitable amount of UV light in response to a particular type of residue or application.
G02B 6/10 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
21.
Electrically-reconfigurable optical device structures with phase change materials
(d) a plurality of heaters for selectively heating any one of the array of optical mesa structures to cause the phase change material in the selected optical mesa structure to change from an amorphous state, wherein the antenna atop the selected mesa structure is capacitively coupled to the metal ground plane, to a crystalline state wherein the antenna atop the selected mesa structure is electrically shunted to the ground plane via the selected mesa structure.
G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour
G02F 1/17 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups
22.
N-BIT REFLECTARRAY UNIT CELL COMPRISING SWITCHES FOR CONFIGURING DIPOLE RESONANT STRUCTURES
An N-bit reflectarray unit cell is disclosed comprising a first part of a first dipole and a second part of the first dipole, and a first switch for connecting and disconnecting the first part of the first dipole to and from the second part of the first dipole. The unit cell further comprises a first part of a second dipole and a second part of the second dipole, and a second switch for connecting and disconnecting the first part of the second dipole to and from the second part of the second dipole.
A filter comprising a linear array of a plurality of TL-inspired T-networks connected in series by capacitors, each TL-inspired T-network typically comprising a pair of conventional transmission lines connected in series with a circuit comprising pair of inductors and a single capacitor, the conventional transmission lines associated with each TL-inspired T-network being optionally combinable together or with conventional transmission lines in neighboring TL-inspired T-networks, wherein the circuit comprising a pair of inductors and a single capacitor is an artificial transmission line providing target characteristic impedance, which is same as that of the conventional transmission lines, and phase delay.
Some variations provide a metal-alloy biphasic system containing a first metal M1 and a second metal M2, wherein a second metal phase has a melting temperature lower than that of a first metal phase, and wherein the metal-alloy biphasic system has a hierarchical microstructure containing a second length scale that is at least one order of magnitude smaller than a first length scale. Some variations provide a metal-alloy biphasic system containing a first metal M1 and a second metal M2, wherein a second metal phase has a melting temperature lower than that of a first metal phase, and wherein the first metal phase forms a continuous network. Other variations provide a metal-alloy biphasic powder containing at least a first metal and a second metal, wherein the solubility of first metal in second metal is less than 5%. Methods of making and using the powders and biphasic system are disclosed.
A computer system comprising N real sensors for generating N real sensor signals, and a multiplexer for selecting M of the real sensor signals from the N of real sensor signals, where M is less than N. The computer system further comprises a combiner for combining the M real sensor signals to generate a virtual sensor signal representing an output of one of the unselected N real sensors.
A local agent of a multi-agent reinforcement learning (MARL) system is disclosed, the local agent comprising a MARL network comprising at least one local hidden layer responsive to a plurality of local observations. A transmitter is configured to transmit an output of the local hidden layer to at least one remote agent, and a receiver is configured to receive an output of a remote hidden layer from the at least one remote agent. A combiner module is configured to combine the local hidden layer output with the remote hidden layer output to generate a combined hidden layer output, wherein the MARL network is configured to process the combined hidden layer output to generate at least one action value for the local agent.
A sensor cluster is disclosed comprising a first plurality of side surfaces of a first N-hedron structure, and a second plurality of side surfaces of a second N-hedron structure. A first plurality of a first type of sensor are mounted on the first plurality of side surfaces, and a second plurality of a second type of sensor are mounted on the second plurality of side surfaces. N is greater than three and the first plurality of side surfaces are interleaved with the second plurality of side surfaces.
Some variations provide an additively manufactured article comprising a first region and a second region, wherein the first region is a solid region or a porous region, wherein the second region has a pore size larger than the first-region pore size, and wherein the first-region average permeability is lower than the second-region average permeability. Some variations provide a co-sintering method of making an architected material with regions having different permeabilities, in which different additive-manufacturing process parameters are applied to distinct regions of the structure. Other variations provide a wall-pinning method of making an architected material with regions having different permeabilities, in which additive-manufacturing process parameters are selected to sinter pinned feedstock powder between solid walls. Engineered structures with controlled permeability, integrated manifolds, and arbitrary geometries are disclosed, without the requirement of complex manufacturing. Many uses are described for the disclosed additively manufactured articles.
Described is a system for semantically grounded video generation. In operation, the system receives a raw video frame of a scene from one or more sensors on an autonomous platform and then encodes the video into a low-dimensional representation of the scene. The low-dimensional representation is then decoded and fed into a controller model for the autonomous platform. Semantic concepts are extracted and then fed into a world model to predict state and action dynamics of the autonomous platform. A raw observation space is then fed into discriminator networks that operate on frames and videos to determine between real and synthetically generated content. The generative capability of one or more encoders and decoders are modified such that the discriminator networks are unable to distinguish between real and synthetically generated content. Finally, the system recursively generates semantically grounded videos using a conjunction of the world model and controller model.
H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
H04N 19/17 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
30.
Modular Inertial Measurement Unit and elements for making same
A corner bracket comprising a volume of matter having n pairs of parallel faces, where n is an integer larger than 2; each face of each pair of parallel faces comprising an opening; the openings in the faces of each pair of parallel faces being joined by a cylindrical recess having a longitudinal axis perpendicular to the faces joined by the cylindrical recess; the longitudinal axis of the cylindrical recesses being arranged such that the cylindrical recesses do not intersect each other. The number n can be 3 and the volume of matter can be a cube.
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
31.
MODULAR INERTIAL MEASUREMENT UNIT AND ELEMENTS FOR MAKING SAME
A corner bracket comprising a volume of matter having n pairs of parallel faces, where n is an integer larger than 2; each face of each pair of parallel faces comprising an opening; the openings in the faces of each pair of parallel faces being joined by a cylindrical recess having a longitudinal axis perpendicular to the faces joined by the cylindrical recess; the longitudinal axis of the cylindrical recesses being arranged such that the cylindrical recesses do not intersect each other. The number n can be 3 and the volume of matter can be a cube.
G01C 21/16 - NavigationNavigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigatedDead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01C 19/5719 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using planar vibrating masses driven in a translation vibration along an axis
G01P 15/02 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces
G01P 15/18 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration in two or more dimensions
G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
32.
METHODS FOR TAILORING THE MAGNETIC PERMEABILITY OF SOFT MAGNETS, AND SOFT MAGNETS OBTAINED THEREFROM
Some variations provide a method of tailoring the surface of a soft magnet, comprising: depositing an austenite-phase-stabilizing donor material on one or more first surface regions of a ferromagnetic receiver material; not depositing the austenite-phase-stabilizing donor material on one or more second surface regions of the ferromagnetic receiver material; laser melting the austenite-phase-stabilizing donor material into the first surface regions; and solidifying the molten austenite-phase-stabilizing donor material within the first surface regions, thereby selectively alloying the ferromagnetic receiver material in the first surface regions. Laser ablation may be utilized instead of laser melting. The first surface regions have a significantly higher magnetic permeability, following the selective alloying of the donor material, compared to the second surface regions. Soft magnets with surface-tailored magnetic permeability are provided by this technology, which is demonstrated using several examples. One commercial application is selectively alloyed soft magnets for a rotor in an electric motor.
A computer system is disclosed for processing a sensor signal comprising a signal component and a noise component. A signal shifter is configured to generate a shifted version of the sensor signal, and a blind source separator (BSS) module is configured to process the sensor signal and the shifted version of the sensor signal to generate a signal output representing the signal component of the sensor signal.
B60K 31/00 - Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
B62D 6/00 - Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
34.
Durable, broadband-transparent polyoxalamide polymers and methods of making and using the same
Some variations provide a polyoxalamide polymer comprising: one or more first segments containing at least one repeat unit that includes (i) a branched, aliphatic hydrocarbon species and (ii) first amide groups at internal ends of the repeat unit, wherein the first amide groups are part of oxalamide groups; one or more polymer end groups containing second amide groups that are each covalently bonded directly to one of the first amide groups, wherein the second amide groups are also part of the oxalamide groups, and wherein the oxalamide groups contain —N—C(═O)—C(—O)—N-sequences; and a reacted form of one or more multifunctional amine chain extenders or crosslinkers with an amine functionality of 3 or greater. The polyoxalamide polymer may be present in a lens, a window, a coating, or a film, for example. The polyoxalamide polymer may have UV transparency, visual transparency, NIR transparency, MWIR transparency, and/or LWIR transparency.
Some variations provide an oligomer composition comprising: polarizable first thermotropic liquid-crystal oligomer molecules (preferably urethanes or ureas) containing first triggerable reactive end groups, wherein the first triggerable reactive end groups are selected from the group consisting of hydroxyl, isocyanate, blocked isocyanate, acrylate, epoxide, amine, vinyl, ester, thiol, conjugated diene, substituted alkene, furan, maleimide, anthracene, and combinations thereof, and wherein the polarizable first thermotropic liquid-crystal oligomer molecules are characterized by a weight-average molecular weight from about 200 g/mol to about 10,000 g/mol; optionally, a plurality of polarizable second thermotropic liquid-crystal oligomer molecules containing second triggerable reactive end groups, wherein the second triggerable reactive end groups are capable of reacting with the first triggerable reactive end groups; and optionally, a reactive coupling agent capable of reacting with the first triggerable reactive end groups. Methods are described for converting the oligomer composition into an anisotropic thermally conductive polymer. Many commercial uses are disclosed.
A computer system is disclosed for processing industrial Boolean satisfiability (SAT) problems. A computer implemented SAT image encoder is configured to encode a runtime industrial SAT problem into a pixelated problem image comprising a plurality of rows, wherein the runtime industrial SAT problem comprises a plurality of clauses and each row of the pixelated problem image represents a corresponding one of the clauses. A computer implemented clause embedding module is configured to encode each row of the pixelated problem image into a corresponding vector, and a computer implemented vector encoder is configured to encode the vectors into an output indicating whether the runtime industrial SAT problem is satisfiable or unsatisfiable.
Described is a system for adapting to perception errors in object detection and recognition. The system receives, with a perception module, perception data from an environment proximate a mobile platform that reflects objects in the environment. Perception probes representing perception characteristics of object detections are generated from the perception data. Using the perception probes, spatial logic-based constraints and temporal logic-based constraints are generated. Spatial perception parameters are determined by solving an optimization problem using a set of the spatial logic-based constraints. Temporal perception parameters are determined by solving an optimization problem using a set of temporal logic-based constraints. The spatial perception parameters and the temporal perception parameters are combined to estimate a final perception parameter. The perception module is adjusted based on the final perception parameter.
G06V 10/98 - Detection or correction of errors, e.g. by rescanning the pattern or by human interventionEvaluation of the quality of the acquired patterns
G06F 17/11 - Complex mathematical operations for solving equations
38.
Planar transmission line low-pass filters with absorptive matrix and method for forming the same
Described is a method for forming a planar transmission line low-pass filter and a resulting filter. The method comprises several acts, including using lithographic processes and a castable polymer with absorptive matrix as a spin-on dielectric to form the planar transmission line low-pass filter.
Described is a system for controlling multiple autonomous platforms. A training process is performed to produce a trained learning agent in a simulation environment. In each episode, each controlled platform is assigned to one target platform that produces an observation. A learning agent processes the observation using a deep learning network and produces an action corresponding to each controlled platform until an action has been produced for each controlled platform. A reward value is obtained corresponding to the episode. The trained learning agent is executed to control each autonomous platform, where the trained agent receives one or more observations from one or more platform sensors and produces an action based on the one or more observations. The action is then used to control one or more platform actuators.
A method for bonding two confronting electronic devices together wherein the two electronic devices are initially temporarily coupled together using a room temperature process with a plurality of knife-edge microstructures on at least a first one of the electronic devices engaging portions of the a second one of the electronic devices. The room temperature process involves applying a relatively low compressive force or pressure between the two electronic devices compared to the forces or pressures used in convention flip-chip bonding. The first one of the electronic devices and the second one of the electronic devices also have traditional contact pads that are spaced from each other by a standoff distance when the devices are initially coupled together using the room temperature process. This allows for inspection of the two electronic devices while they are initially temporarily coupled together. In need be, the two can be separated at this stage for re-work After passing inspection, a relatively higher compressive force or pressure is applied between the two electronic devices to cause the standoff distance to decrease to zero and for the contact pads confronting each other on the confronting two electronic devices to weld thereby permanently bonding the two electronic devices together.
Described is a system for Neuromorphic Adaptive Core (NeurACore) signal processor for ultra-wide instantaneous bandwidth denoising of a noisy signal. The NeurACore signal processor includes a digital signal pre-processing unit for performing cascaded decomposition of a wideband complex valued In-phase and Quadrature-phase (I/Q) input signal in real time. The wideband complex valued I/Q input signal is decomposed into I and Q sub-channels. The NeurACore signal processor further includes a NeurACore and local learning layers for performing high-dimensional projection of the wideband complex valued I/Q input signal into a high-dimensional state space; a global learning layer for performing a gradient descent online learning algorithm; and a neural combiner for combining outputs of the global learning layer to compute signal predictions corresponding to the wideband complex valued I/Q input signal.
Some variations provide an optic (such as an optical lens or an optical window) comprising at least 1 wt % of a polyoxalamide, wherein the optic is characterized by at least 40% average transmission of infrared radiation, and wherein the polyoxalamide comprises: first segments containing at least one repeat unit that includes (i) a branched, aliphatic hydrocarbon species and (ii) first amide groups at internal ends of the repeat unit, wherein the first amide groups are part of oxalamide groups; polymer end groups containing second amide groups that are each covalently bonded directly to one of the first amide groups, wherein the second amide groups are also part of the oxalamide groups, and wherein the oxalamide groups contain —N—C(═O)—C(═O)—N— sequences; and a reacted form of multifunctional amine chain extenders or crosslinkers with an amine functionality of 3 or greater. Methods of making and using the optic are described.
B32B 3/00 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
C08G 73/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups
C08K 3/11 - Compounds containing metals of Groups 4 to 10 or of Groups 14 to 16 of the Periodic Table
C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics
G02B 1/18 - Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
Presented is a lateral fin static induction transistor including a semi conductive substrate, source and drain regions extending from an optional buffer layer of same or varied thickness supported by the semi conductive substrate, a semi conductive channel electrically coupling the source region to the drain region of the transistor, a portion of the semi conductive channel being a fin and having a face covered by a gated structure, thereby defining a gated channel within the semi conductive channel, the semi conductive channel further including a drift region electrically coupling the gated channel to the drain region of the transistor.
H01L 29/06 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 29/10 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 29/16 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form
H01L 29/165 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form including two or more of the elements provided for in group in different semiconductor regions
H01L 29/167 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System in uncombined form further characterised by the doping material
2, wherein a second metal phase has a melting temperature lower than that of a first metal phase, and wherein the first metal phase forms a continuous network. Other variations provide a metal-alloy biphasic powder containing at least a first metal and a second metal, wherein the solubility of first metal in second metal is less than 5%. Methods of making and using the powders and biphasic system are disclosed.
A transition metal dichalcogenide (TMD) transistor includes a substrate, an n-type two-dimensional (2D) TMD layer, a metal source electrode, a metal drain electrode, and a gate dielectric. The substrate has a top portion that is an insulating layer, and the n-type 2D TMD layer is on the insulating layer. The metal source electrode, the metal drain electrode, and the gate dielectric are on the n-type 2D TMD layer. The metal gate electrode is on top of the gate dielectric and is between the metal source electrode and the metal drain electrode.
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
H01L 29/24 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only inorganic semiconductor materials not provided for in groups , , or
A deployable structure includes a hydride material to be converted into hydrogen gas; and a sheet material encapsulating the hydride material; wherein the sheet material is to be plastically deformed by the hydrogen gas to have an expanded structure. A method of manufacturing a deployable structure includes: forming a sheet material comprising an outer shell structure and a hollow interior; placing a hydride material capable of being converted into hydrogen gas into the hollow interior; sealing the outer shell structure; and converting and releasing the hydrogen gas to expand and plastically deform the sheet material.
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B64G 1/66 - Arrangements or adaptations of apparatus or instruments, not otherwise provided for
B64G 1/22 - Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
47.
Thin-walled high temperature alloy structures via multi-material additive manufacturing
A thin-walled metal part, and a method to fabricate such a part out of various alloys. A plurality of layers are formed, each of the layers being formed on a polymer template or on a previously formed layer. A homogenizing heat treatment is used to cause chemical elements in the layers to interdiffuse, to form a single continuous layer with a substantially uniform alloy composition.
B32B 3/12 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
C22C 19/03 - Alloys based on nickel or cobalt based on nickel
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
C23C 28/02 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of metallic material
A method and apparatus for verifying object classification includes comparing detected object-components with trained component-based descriptors and similarity measures to generate object classification verification data. The object classification verification data represents object classification confidence or misclassification errors to weight uncertainty for perception-based decision making. A sequence of similarity measures associated with a current frame and prior frames within a reference observation time constraint are compared to a reference temporal similarity measure boundary to generate the object classification verification data.
G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
A method of controlling the thickness of a layer of material applied to a surface, where the surface has one or more bodies of another material disposed therein, the another material being significantly harder than the first mentioned material, the one or more bodies of another material being disposed on the surface before the layer of material is applied to the surface, the layer of material when applied to the surface having a sufficient thickness to cover the one or more bodies of the another material, the layer of material then being mechanically reduced in thickness, such as by polishing, to expose at least a portion of the one or more bodies of the another material.
H01L 21/66 - Testing or measuring during manufacture or treatment
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
H01L 23/544 - Marks applied to semiconductor devices, e.g. registration marks, test patterns
50.
END-POINT DETECTION FOR BACKSIDE METAL THICKNESS CONTROL
A method of controlling the thickness of a layer of material applied to a surface, where the surface has one or more bodies of another material disposed therein, the another material being significantly harder than the first mentioned material, the one or more bodies of another material being disposed on the surface before the layer of material is applied to the surface, the layer of material when applied to the surface having a sufficient thickness to cover the one or more bodies of the another material, the layer of material then being mechanically reduced in thickness, such as by polishing, to expose at least a portion of the one or more bodies of the another material.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
H01L 23/532 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
H01L 23/00 - Details of semiconductor or other solid state devices
H01L 25/00 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices
H01L 23/544 - Marks applied to semiconductor devices, e.g. registration marks, test patterns
51.
Additively manufacturing components containing nickel alloys, and feedstocks for producing the same
Some variations provide an additively manufactured metal-containing component comprising (i) nickel, (ii) aluminum and/or titanium, and (iii) nanoparticles, wherein the sum of aluminum weight percentage and one-half of titanium weight percentage is at least 3 on a nanoparticle-free basis, and wherein the additively manufactured metal-containing component has a microstructure that is substantially crack-free with equiaxed grains. A feedstock composition is also provided, comprising metal-containing microparticles and nanoparticles, wherein the nanoparticles are chemically and/or physically disposed on surfaces of the microparticles, wherein the microparticles comprise (i) nickel and (ii) aluminum and/or titanium, and wherein the sum of aluminum weight percentage and one-half of titanium weight percentage is at least 3 on a nanoparticle-free basis. The nanoparticles may be selected from metals; ceramics; cermets; intermetallic alloys; oxides, carbides, nitrides, borides, or hydrides thereof; polymers; and/or carbon. Successful nanofunctionalization of MAR-M-247 nickel superalloy is demonstrated, creating a crack-free additively manufactured microstructure.
A spar buoy for very low frequency (VLF) or low frequency (LF) transmission including a first portion of the spar buoy extending above a mean water line including a conductive structure including a coaxial feed, and an antenna coupled to the coaxial feed and extending above the conductive structure, and a second portion of the spar buoy below the mean water line including a transmitter coupled to the coaxial feed, an energy storage subsystem coupled to the transmitter and an electric power generation subsystem coupled to the energy storage subsystem.
This disclosure provides resin formulations which may be used for 3D printing and thermally treating to produce a ceramic material. The disclosure provides direct, free-form 3D printing of a preceramic polymer, followed by converting the preceramic polymer to a 3D-printed ceramic composite with potentially complex 3D shapes. A wide variety of chemical compositions is disclosed, and several experimental examples are included to demonstrate reduction to practice. For example, preceramic resin formulations may contain a carbosilane in which there is at least one functional group selected from vinyl, allyl, ethynyl, unsubstituted or substituted alkyl, ester group, amine, hydroxyl, vinyl ether, vinyl ester, glycidyl, glycidyl ether, vinyl glycidyl ether, vinyl amide, vinyl triazine, vinyl isocyanurate, acrylate, methacrylate, alkyl acrylate, alkyl methacrylate, phenyl, halide, thiol, cyano, cyanate, or thiocyanate. The resin formulations may contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material.
C04B 35/571 - Fine ceramics obtained from polymer precursors
B28B 1/00 - Producing shaped articles from the material
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C08G 77/50 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
54.
Process to make machine object detection robust to adversarial attacks
Described is a system for object detection that is robust to adversarial attacks. An initial hypothesis of an identity of an object in an input image is generated using a sparse convolutional neural network (CNN) and a distribution aware classifier. A foveated hypothesis verification process is performed for identifying a region of the input image that supports the initial hypothesis. Using a part-based classifier, an identity of a part of the object in the region of the input image is predicted. An attack probability for the predicted identity of the part, and the initial hypothesis is updated based on the predicted identity of the part and the attack probability. The foveated hypothesis verification process and updating of hypotheses is performed until a hypothesis reaches a certainty threshold. The object is labeled based on the hypothesis that reached the certainty threshold.
G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a patternLocating or processing of specific regions to guide the detection or recognition
55.
Thermal protection system including high temperature radio frequency aperture
A thermal protection system includes: an outer skin; a thermally insulating material under the outer skin; and a high temperature radio frequency (RF) aperture. The RF aperture includes a plurality of waveguides separated from each other and extending through the outer skin and the thermally insulating material.
Some variations provide a functionalized composite material comprising: a thermoplastic polymer binder matrix disposed in a distinct volume; a plurality of discrete metal or metal alloy particles dispersed in the thermoplastic polymer matrix; and a plurality of discrete particulates assembled on surfaces of the discrete metal or metal alloy particles, wherein the discrete particulates are in contact with the thermoplastic polymer binder matrix, wherein the discrete particulates are smaller than the discrete metal or metal alloy particles in at least one dimension, and wherein the discrete particulates are compositionally different than the discrete metal or metal alloy particles. The discrete particulates may be selected and/or configured to function as a grain refiner, a sintering aid, and/or a strengthening phase, within the functionalized composite material.
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
B22F 1/16 - Metallic particles coated with a non-metal
B22F 1/18 - Non-metallic particles coated with metal
B22F 3/22 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor for producing castings from a slip
B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
B33Y 70/00 - Materials specially adapted for additive manufacturing
Some variations provide a thermoformable and thermosettable bismaleimide-thiol-epoxy resin composition comprising: a thiol-endcapped bismaleimide monomer or oligomer; a thiol-containing species; an epoxy species; a curing catalyst; and optional additives. Other variations provide a method of making a bismaleimide-thiol-epoxy resin composition, comprising: providing a starting bismaleimide, a starting multifunctional amine, a starting multifunctional thiol, an acid catalyst, and a solvent to form a starting reaction mixture; reacting the bismaleimide, the multifunctional amine, and the multifunctional thiol to form a thiol-endcapped bismaleimide monomer or oligomer; providing a thiol-containing species; providing at least one epoxy species; providing a curing catalyst; and combining the thiol-endcapped bismaleimide monomer or oligomer, the thiol-containing species, the epoxy species, and the curing catalyst, to form a bismaleimide-thiol-epoxy resin composition. Other variations provide a method of thermoprocessing comprising: thermoforming, but not completely curing, a bismaleimide-thiol-epoxy resin composition; and, at a later time, completely curing the thermoformed bismaleimide-thiol-epoxy resin.
C08G 59/38 - Epoxy compounds containing three or more epoxy groups together with di-epoxy compounds
C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
An antenna system having at least one active element with a first end thereof for connection to a radio receiver, transmitter or transceiver and at least one electromechanical resonator connected in series with (i) at least portion of said at least one active element and at least another portion of said at least one active element or (ii) said at least one active element and said radio receiver, transmitter or transceiver. The at least one active element exhibits capacitive reactance at an intended frequency of operation and the at least one electromechanical resonator exhibits inductive reactance at the intended frequency of operation, the inductive reactance of the at least one electromechanical resonator offsetting or partially offsetting the capacitive reactance of the at least one antenna element at the intended frequency of operation.
H01Q 1/34 - Adaptation for use in or on ships, submarines, buoys or torpedoes
H01Q 1/36 - Structural form of radiating elements, e.g. cone, spiral, umbrella
H01Q 5/357 - Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
A magnetic gradiometer sensor comprising a substrate with at least a pair of resonators disposed thereon, wherein each of the at least a pair of resonators is coated with a magnetostrictive film. The resonators are preferably connected to sustaining circuits to form oscillators and the oscillators are preferably used within a phase lock loop to detect a difference in the magnetic field between the at least a pair of resonators.
H03B 5/32 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals
An electric field-controlled refractive index tunable device includes a phase change correlated transition metal oxide layer, and E-field responsive charge dopants. The E-field responsive charge dopants either accumulate in the phase change correlated transition metal oxide layer or are depleted from the phase change correlated transition metal oxide layer in response to an E-field applied to the phase change correlated transition metal oxide layer.
G02F 1/19 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on variable-reflection or variable-refraction elements not provided for in groups
G02F 1/03 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels or Kerr effect
An array of III-V material transistors singulated from a Si or SiC wafer disposed on a stretchable tape compatible with pick and place tools and a method of forming same.
H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
H01L 21/82 - Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
This disclosure provides resin formulations which may be used for 3D printing and thermally treating to produce a ceramic material. The disclosure provides direct, free-form 3D printing of a preceramic polymer, followed by converting the preceramic polymer to a 3D-printed ceramic composite with potentially complex 3D shapes. A wide variety of chemical compositions is disclosed, and several experimental examples are included to demonstrate reduction to practice. For example, preceramic resin formulations may contain a carbosilane in which there is at least one functional group selected from vinyl, allyl, ethynyl, unsubstituted or substituted alkyl, ester group, amine, hydroxyl, vinyl ether, vinyl ester, glycidyl, glycidyl ether, vinyl glycidyl ether, vinyl amide, vinyl triazine, vinyl isocyanurate, acrylate, methacrylate, alkacrylate, alkyl alkacrylate, phenyl, halide, thiol, cyano, cyanate, or thiocyanate. The resin formulations may contain a solid-phase filler, to provide high thermal stability and mechanical strength (e.g., fracture toughness) in the final ceramic material.
C04B 35/571 - Fine ceramics obtained from polymer precursors
B28B 1/00 - Producing shaped articles from the material
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
C08G 77/50 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
A HEMT comprising a channel layer of a first III-Nitride semiconductor material, grown on a N-polar surface of a back barrier layer of a second III-Nitride semiconductor material; the second III-Nitride semiconductor material having a larger band gap than the first III-Nitride semiconductor material, such that a positively charged polarization interface and two-dimensional electron gas is obtained in the channel layer; a passivation, capping layer, of said first III-Nitride semiconductor material, formed on top of and in contact with a first portion of a N-polar surface of said channel layer; a gate trench traversing the passivation, capping layer, and ending at said N-polar surface of said channel layer; and a gate conductor filling said gate trench.
Some variations provide an atomic instrument configured with an optically transparent and electrochemically cleanable window, comprising: a transparent first electrode; a second electrode with an atom reservoir for first metal ions; an ion conductor interposed between the first electrode and a second electrode, wherein the ion conductor is capable of transporting second metal ions, wherein the ion conductor is in contact with the first electrode and with the second electrode, and wherein the ion conductor is optically transparent; and a transparent window support in contact with the ion conductor, wherein the electrochemically cleanable window is optically transparent, wherein the transparent window support, the ion conductor, and the first electrode collectively form a transparent and electrochemically cleanable window. The disclosed technique removes adsorbed low-vapor-pressure metal thin films from the interior of windows before they become opaque, which extends system lifetime and reduces optical power requirements.
Tethered Unmanned Aircraft Antenna utilizing a Vertical Take Off and Landing (VTOL) Unmanned Aerial System (UAS) which may be provided by quadcopter drone (for example) constrained by a tether connected at one end to a maritime or land-based platform, the tether also being used as a RF antenna. The tether is capable of transmitting DC power to the UAS or drone at a desired antenna height and simultaneously supports RF transmission power with the help of a DC power isolation circuit. The tether is desirously lightweight and corona resistant.
2 and greater). In some disclosed infrared-transparent polymers, the carbon-free polymer backbone contains a plurality of polymer repeat units of the form
1) selected from the group consisting of alkyls, hydroxyl, amino, urea, thiol, thioether, amino alkyls, carboxylates, metals, metal-containing groups, and deuterated forms or combinations thereof; wherein n is selected from 2 to about 10,000; and wherein the carbon-free polymer backbone is linear, cyclic, branched, or a combination thereof.
C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
C08L 43/02 - Homopolymers or copolymers of monomers containing phosphorus
G01N 21/35 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
67.
System for action recognition error detection and correction using probabilistic signal temporal logic
Described is a system for action recognition error detection and correction using probabilistic signal temporal logic. The system is initiated by training an action recognition system to generate true positive (TP)/false positive (FP) axioms. Thereafter, the system ca be used to classify one or more actions in a video sequence as true action classifications by using the TP/FP axioms to remove false action classifications. With the remaining true classifications, a device can be controlled given the situation and relevant true classification.
G06V 20/40 - ScenesScene-specific elements in video content
G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestriansRecognition of traffic objects, e.g. traffic signs, traffic lights or roads
G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations
A system for subsurface transmission includes an array of very low frequency (VLF) transmitter nodes supported by semi-autonomous maritime, airborne, or space platforms spaced at regular intervals from their nearest neighbors and phased to localize VLF coverage to some desired area on a body of water.
Some variations provide a process for additive manufacturing of a nanofunctionalized metal alloy, comprising: providing a nanofunctionalized metal precursor containing metals and grain-refining nanoparticles; exposing a first amount of the nanofunctionalized metal precursor to an energy source for melting the precursor, thereby generating a first melt layer; solidifying the first melt layer, thereby generating a first solid layer; and repeating many times to generate a plurality of solid layers in an additive-manufacturing build direction. The additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains. Other variations provide an additively manufactured, nanofunctionalized metal alloy comprising metals selected from aluminum, iron, nickel, copper, titanium, magnesium, zinc, silicon, lithium, silver, chromium, manganese, vanadium, bismuth, gallium, or lead; and grain-refining nanoparticles selected from zirconium, tantalum, niobium, titanium, or oxides, nitrides, hydrides, carbides, or borides thereof, wherein the additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains.
Some variations provide a permanent-magnet structure comprising: a region having a plurality of magnetic domains and a region-average magnetic axis, wherein each of the magnetic domains has a domain magnetic axis that is substantially aligned with the region-average magnetic axis, and wherein the plurality of magnetic domains is characterized by an average magnetic domain size. Within the region, there is a plurality of metal-containing grains characterized by an average grain size, and each of the magnetic domains has a domain easy axis that is dictated by a crystallographic texture of the metal-containing grains. The region has a region-average easy axis based on the average value of the domain easy axis within that region. The region-average magnetic axis and the region-average easy axis form a region-average alignment angle that has a standard deviation less than 30° within the plurality of magnetic domains. Many permanent-magnet structures are disclosed herein.
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
C22C 38/30 - Ferrous alloys, e.g. steel alloys containing chromium with cobalt
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
H01F 13/00 - Apparatus or processes for magnetising or demagnetising
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
71.
Bidirectional machine teaching interface for human-machine co-pilots
Described is a system for human-machine teaching for vehicle operation. The system determines currently enabled status reporting modes on a vehicle interface of a vehicle. The currently enabled status reporting modes are compared to a set of preferred status reporting modes of previous users. Based on the comparison, a status reporting mode is selected. A current operational status of the vehicle is reported to a current user, via the vehicle interface, using the selected status reporting mode. The system then determines preferred solutions of previous users to address the current operational status of the vehicle. Suggestions to address the current operational status of the vehicle based on the preferred solutions are reported to the user via the vehicle interface. A vehicle action corresponding to a solution selected by the current user is implemented via a vehicle component.
Described is a system for producing a causal map from a body of text. The system receives multiple textual documents as input. Pairs of cause-effect phrases are extracted from the textual documents and embedded into a vector space. The embedded data is clustered into clusters using a probabilistic technique. A causal map having nodes and edges is generated from the clusters. Using the causal map, causal connections between clusters are obtained, where each node represents an event and each edge represents a causal relationship between events. The causal map is provided as an interactive graph.
Described is a system for improving generalization of an agent, such as an autonomous vehicle, to unanticipated environmental changes. A set of concepts from the agent's experiences of an environment are extracted and consolidated into an episodic world model. Using the episodic world model, a dream sequence of prospective simulations, based on a selected set of concepts and constrained by the environment's semantics and dynamics, is generated. The dream sequence is converted into a sensor data format, which is used for augmented training of the agent to operate in the environment with improved generalization to unanticipated changes in the environment.
B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
B60W 40/08 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to drivers or passengers
Described is a system for multimodal machine-aided comprehension analysis. The system can be implemented in an augmented reality headset that, in conjunction with a processor, generates an initial scene graph of a scene proximate the user. Items and labels are presented, with the headset tracking eye movements of the user as the user gazes upon the subject labels, item labels, and relationship labels. A resulting scene graph (having relationship triplets) is generated based on the eye movements of the user and an amount of time the user spends gazing upon each of the display components. A comprehension model is generated by estimating a user's comprehension of the relationship triplets, with a knowledge model being generated based on a known knowledge graph and the comprehension model. Cues are then presented to the user based on the comprehension and knowledge models to assist the user in their comprehension of the scene.
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
A61B 3/113 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining or recording eye movement
This disclosure provides corrosion-resistant coatings that significantly improve corrosion resistance compared to the prior art. The corrosion protection system senses gradients in electrical potential, pH, and metal ion concentration, and then automatically halts corrosion. Some variations provide a gradient-responsive corrosion-resistant coating comprising: a first layer comprising a transition metal oxide and mobile cations; a second layer comprising a biphasic polymer, wherein the biphasic polymer contains ionic groups, wherein the biphasic polymer comprises a discrete phase and a continuous transport phase, wherein the continuous transport phase is capable of delivering oligomers in response to corrosion byproducts, and wherein the oligomers are ionically crosslinkable with metal cations from a base metal substrate. Other variations provide a corrosion protection system comprising: a base metallic layer; a metal oxide layer comprising a transition metal oxide and mobile cations; a polymer layer comprising a biphasic polymer; and a sealing layer disposed on the polymer layer.
C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
76.
Method and system for generating phononic frequency comb
H03K 3/01 - Circuits for generating electric pulsesMonostable, bistable or multistable circuits Details
H03B 5/04 - Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
H03B 5/32 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
H03B 5/36 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
A signal processing circuit. In some embodiments, the signal processing circuit includes a first sample and hold circuit and a second sample and hold circuit. The first sample and hold circuit may include: a hold capacitor; an input switch connected between a common input node and the hold capacitor; a signal path amplifier having an input connected to the hold capacitor; and an output switch connected between an output of the signal path amplifier and a common output node. An input of a voltage feedback amplifier may be connected to the hold capacitor, and an output of the voltage feedback amplifier may be operatively coupled to an internal node of the input switch.
H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors
H03K 19/20 - Logic circuits, i.e. having at least two inputs acting on one outputInverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
Some variations provide a method of making an additively manufactured single-crystal metallic component, comprising: providing a feedstock comprising a first metal or metal alloy; providing a build plate comprising a single crystal of a second metal or metal alloy; exposing the feedstock to an energy source for melting the feedstock, generating a melt layer on the build plate; and solidifying the melt layer, generating a solid layer (on the build plate) of a metal component. The solid layer is also a single crystal of the first metal or metal alloy. The method may be repeated many times to build the part. Some variations provide a single-crystal metallic component comprising a plurality of solid layers in an additive-manufacturing build direction, wherein the plurality of solid layers forms a single crystal of a metal or metal alloy with a continuous crystallographic texture. The crystal orientation may vary along the additive-manufacturing build direction.
An atomic clock stabilized or disciplined by tooth selected from a phononic comb of frequency teeth. A method of stabilizing an atomic clock having a reference oscillator, the method comprising selecting a particular tooth from a phononic comb of frequency teeth and applying a correction signal to said reference oscillator, the correction signal being based the selected tooth of said phononic comb. The disclosed technology is not limited to stabilizing reference oscillators associated with atomic clocks and thus may be utilized to stabilize reference oscillators whether or not they are interfaces with an atomic clock.
H03L 7/26 - Automatic control of frequency or phaseSynchronisation using energy levels of molecules, atoms, or subatomic particles as a frequency reference
G04F 5/14 - Apparatus for producing preselected time intervals for use as timing standards using atomic clocks
80.
Scalable excitatory and inhibitory neuron circuitry based on vanadium dioxide relaxation oscillators
A neuron circuit, comprising first and second NDR devices biased each with opposite polarities, said first and second NDR devices being coupled to first and second grounded capacitors.
Described is a Neuromorphic Adaptive Core (NeurACore) cognitive signal processor (CSP) for wide instantaneous bandwidth denoising of noisy signals. The NeurACore CSP includes a NeurACore block, a globally learning layer, and a neural combiner. The NeurACore block is operable for receiving as an input a mixture of in-phase and quadrature (I/Q) signals and mapping the I/Q signals onto a neural network to determine complex-valued output weights of neural states of the neural network. The global learning layer is operable for adapting the complex-valued output weights to predict a most likely next value of the input I/Q signal. Further, the neural combiner is operable for combining a set of delayed neural state vectors with the weights of the global learning layer to compute an output signal, the output signal being separate in-phase and quadrature signals.
Some variations provide a system for producing a functionalized powder, comprising: an agitated pressure vessel; first particles and second particles contained within the agitated pressure vessel; a fluid contained within the agitated pressure vessel; an exhaust line for releasing the fluid from the agitated pressure vessel; and a means for recovering a functionalized powder containing the second particles disposed onto surfaces of the first particles. A preferred fluid is carbon dioxide in liquefied or supercritical form. The carbon dioxide may be initially loaded into the pressure vessel as solid carbon dioxide. The pressure vessel may be batch or continuous and is operated under reaction conditions to functionalize the first particles with the second particles, thereby producing a functionalized powder, such as nanofunctionalized metal particles in which nanoparticles act as grain refiners for a component ultimately produced from the nanofunctionalized metal particles. Methods for making the functionalized powder are also disclosed.
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
B22F 9/02 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
A self-sanitizing surface structure configured to selectively refract light, a method of fabricating a self-sanitizing surface configured to selectively refract light, and a method of decontaminating a surface using selectively refracted light. A waveguide including a support layer below a propagating layer is positioned over a substrate as a self-sanitizing layer. In the absence of a contaminant or residue on the waveguide, UV light injected into the propagating layer is constrained within the propagating layer due to total internal reflection. When a residue is present on the self-sanitizing surface structure, light may be selectively refracted at or near the interface with the residue along the side of the waveguide to destroy the residue. The self-sanitizing surface structure may be configured is to refract a suitable amount of UV light in response to a particular type of residue or application.
G02B 6/10 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
84.
COMPRESSIBLE COATING REINFORCEMENTS FOR CERAMIC MATRIX COMPOSITES, AND METHODS OF MAKING THE SAME
Some variations provide a pre-ceramic matrix composite comprising: a precursor pre-ceramic matrix; reinforcing elements disposed within the precursor pre-ceramic matrix; and a compressible material disposed on the surface of the reinforcing elements and interposed between the reinforcing elements and the precursor pre-ceramic matrix. Other variations provide a ceramic matrix composite comprising: a ceramic matrix; reinforcing elements disposed within the ceramic matrix; and a compressed material disposed on the surface of the reinforcing elements and interposed between the reinforcing elements and the matrix. The coating of compressible material prevents cracking during processing because the coating absorbs stresses associated with volumetric shrinkage of the ceramic matrix during densification, thereby reducing the stresses at the interface between the reinforcing elements and the ceramic matrix. Methods of fabricating ceramic matrix composites using the principles of the invention are disclosed. Methods include pyrolysis of pre-ceramic polymers, sintering of pre-ceramic materials, and sol-gel processing.
Described is a system for evaluating and correcting perception errors in object detection and recognition. The system receives perception data from an environment proximate a mobile platform. Perception probes are generated from the perception data which describe perception characteristics of object detections in the perception data. For each perception probe, probabilistic distributions for true positive and false positive values are determined, resulting in true positive and false negative perception probes. Statistical characteristics of true positive perception probes and false positive perception probes are then determined. Based on the statistical characteristics, true positive perception probes are clustered. An axiom is generated to determine statistical constraints for perception validity for each perception probe cluster. The axiom is evaluated to classify the perception probes as valid or erroneous. Optimal perception parameters are generated by solving an optimization problem based on the axiom. The perception module is adjusted based on the optimal perception parameters.
G06K 9/62 - Methods or arrangements for recognition using electronic means
G06V 10/98 - Detection or correction of errors, e.g. by rescanning the pattern or by human interventionEvaluation of the quality of the acquired patterns
G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
G06V 10/762 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using clustering, e.g. of similar faces in social networks
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
A method of forming a curved semiconductor includes: forming a device layer on a semiconductor substrate; forming a metal layer on the device layer; removing the semiconductor substrate from the device layer; and curving the device layer and the metal layer.
An infrared detector and a method for manufacturing it are disclosed. The infrared detector contains an absorber layer responsive to infrared light, a barrier layer disposed on the absorber layer, a plurality of contact structures disposed on the barrier layer; and an oxide layer disposed above the barrier layer and between the plurality of the contact structures, wherein the oxide layer reduces the dark current in the infrared detector. The method disclosed teaches how to manufacture the infrared detector.
Some variations provide an atom vapor-density control system, the system comprising: a first electrode; a second electrode that is electrically isolated from the first electrode; an ion-conducting layer interposed between the first electrode and the second electrode, wherein the ion-conducting layer is in ionic communication with the second electrode; at least one atom reservoir in contact with the second electrode or with an additional electrode, wherein the atom reservoir is electrochemically configured to controllably supply or receive atoms; a heater in thermal communication with a heated region comprising the first electrode; and one or more thermal isolation structures configured to minimize heat loss out of the heated region into a cold region. Several exemplary system configurations are presented in the drawings. The disclosed atom vapor-density control systems are capable of controlling the vapor pressure of metal atoms (such as alkali atoms) at low electrical power input.
3, a packing fraction from 20% to 100%, and an average relative surface roughness less than 5%, for example. Methods of making these assemblies are described, and many experimental examples are included.
Some variations provide a method of making a nanofunctionalized metal powder, comprising: providing metal particles containing metals selected from iron, nickel, copper, titanium, magnesium, zinc, silicon, lithium, silver, chromium, manganese, vanadium, bismuth, gallium, or lead; providing nanoparticles selected from zirconium, tantalum, niobium, or titanium; disposing the nanoparticles onto surfaces of the metal particles, in the presence of mixing media, thereby generating nanofunctionalized metal particles; and isolating and recovering the nanofunctionalized metal particles as a nanofunctionalized metal powder. Some variations provide a composition comprising a nanofunctionalized metal powder, the composition comprising metal particles and nanoparticles containing one or more elements selected from the group consisting of zirconium, tantalum, niobium, titanium, and oxides, nitrides, hydrides, carbides, or borides thereof, or combinations of the foregoing.
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
B22F 9/06 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material
B33Y 70/00 - Materials specially adapted for additive manufacturing
An isolation system and method are disclosed. The isolation system includes a beam that includes a first end and a second end. The isolation system may include at least one clamping block comprising first elastomeric material, and the first end may be coupled with the first elastomeric material by the at least one clamping block. An end condition of the buckling beam may be varied based on compression stiffening of the first elastomeric material.
F16F 15/04 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means
92.
Method of making hypersonic leading-edge heat pipe with porous wick
Some variations provide a leading-edge heat pipe comprising: (a) an envelope fabricated from a shell material, wherein the envelope includes at least one edge with a radius of curvature of less than 3 mm, and wherein the envelope includes, or is in thermal communication with, at least one heat-rejection surface; (b) a porous wick fabricated from a ceramic or metallic wick material, wherein the porous wick is configured within a first portion of the interior cavity, wherein at least a portion of the porous wick is adjacent to the inner surface, and wherein the porous wick has a bimodal pore distribution comprising an average capillary-pore size from 0.2 microns to 200 microns and an average high-flow pore size from 100 microns to 2 millimeters (the average high-flow pore size is greater than the average capillary-pore size); and (c) a phase-change heat-transfer material contained within the porous wick.
B21D 53/02 - Making other particular articles heat exchangers, e.g. radiators, condensers
F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
B33Y 80/00 - Products made by additive manufacturing
93.
Frequency multiplexed operation of vibratory gyroscopes for continuous self-calibration
A Coriolis vibratory gyroscope having a resonator with at least a first and a second n=2 vibratory modes of same resonance frequency in a resonator plane; first and second sensing circuits for generating first and second sense signals in response to a motion of the resonator along a major axis of the first and second vibratory modes; a first drive circuit for driving the resonator in the first vibratory mode with a first drive signal; a second drive circuit for simultaneously driving the resonator in the second vibratory mode with a second drive signal; wherein said first signal has a first frequency equal to a resonant frequency of said resonator in said first vibratory mode, and said second signal has the same frequency as the first signal, modulated in amplitude with a second frequency.
A CVG having first and second degenerate resonator modes with each a damping rate; drive circuits for causing the resonator to oscillate in the first and second modes in response to first and second drive signals; first and second sense circuits for generating first and second sense signals in response to the resonator oscillating in the first and second modes; a signal processing circuit having control loops for generating the first and second drive signals based on the first and second sense signals; and first and second damping feedback circuits for generating first and second damping feedback signals proportional to the first and second damping rates; an adding the damping feedback signals to the first and second drive signals.
One or more embodiments of the present disclosure are directed toward improved methods of fabricating a semiconductor device utilizing multi-level electron beam lithography (e-beam lithography), an alignment marker for multi-level e-beam lithography, and a semiconductor device including the alignment marker. A method of fabricating a semiconductor device may include: forming an alignment marker in a substrate, the alignment marker including tantalum; determining, utilizing a backscatter electron detector of an electron beam lithography tool, a location of an edge of the alignment marker based on an atomic number contrast between the alignment marker and the substrate; and forming, utilizing the electron beam lithography tool, at least one transistor in the substrate based on the location of the edge of the alignment marker.
H01J 37/317 - Electron-beam or ion-beam tubes for localised treatment of objects for changing properties of the objects or for applying thin layers thereon, e.g. ion implantation
G03F 9/00 - Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
H01L 21/033 - Making masks on semiconductor bodies for further photolithographic processing, not provided for in group or comprising inorganic layers
H01L 23/544 - Marks applied to semiconductor devices, e.g. registration marks, test patterns
96.
Additively manufactured single-crystal metallic components, and methods for producing the same
Some variations provide a method of making an additively manufactured single-crystal metallic component, comprising: providing a feedstock comprising a first metal or metal alloy; providing a build plate comprising a single crystal of a second metal or metal alloy; exposing the feedstock to an energy source for melting the feedstock, generating a melt layer on the build plate; and solidifying the melt layer, generating a solid layer (on the build plate) of a metal component. The solid layer is also a single crystal of the first metal or metal alloy. The method may be repeated many times to build the part. Some variations provide a single-crystal metallic component comprising a plurality of solid layers in an additive-manufacturing build direction, wherein the plurality of solid layers forms a single crystal of a metal or metal alloy with a continuous crystallographic texture. The crystal orientation may vary along the additive-manufacturing build direction.
A method of repairing a sandwich structure includes: removing a damaged portion of a core and a damaged portion of a first facesheet to form an open volume; filling the open volume with an ultraviolet-curable photomonomer; partially curing the ultraviolet-curable photomonomer to form a plurality of photopolymer waveguides by utilizing ultraviolet light; and arranging a replacement facesheet on the damaged portion of the first facesheet and over the photopolymer waveguides.
B29C 73/10 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements using patches sealing on the surface of the article
B29C 73/02 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using liquid or paste-like material
B29C 73/06 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using preformed elements using plugs sealing in the hole
B32B 3/12 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
A method of providing a spatial light modulator comprising: providing a substrate; providing a first phase change material cell on the substrate, the first phase change material cell comprising: a first electrical heater on the substrate; a first optical reflector layer on the electrical heater; and a first phase change material layer on the optical reflector layer; and providing at least a second phase change material cell on the substrate, the second phase change material cell comprising: a second electrical heater on the substrate; a second optical reflector layer on the second electrical heater; a second phase change material layer on the second optical reflector layer; and providing a light absorber layer between the first phase change material cell and the second phase change material cell.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
G02B 27/09 - Beam shaping, e.g. changing the cross-sectioned area, not otherwise provided for
G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
99.
System for generating topic-based sentiment time series from social media data
A method for issuing control signals in response to sentiment. In some embodiments, the method includes: assigning, to each of a plurality of comments, a respective topic vector of length k; determining whether a largest element of the topic vector of a first comment of the plurality of comments exceeds a weight threshold; in response to the determining that the largest element exceeds the weight threshold, classifying the first comment into a first topic, of k topics, the first topic corresponding to the position, in the topic vector, of the largest element of the topic vector; calculating a first sentiment score; calculating an average sentiment score, based in part on the first sentiment score; determining whether the average sentiment score meets a criterion; and in response to the determining that the criterion is met, generating a control signal, the control signal including a message related to the first topic.
G06Q 50/00 - Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
Described is a system for analyzing time series data. A sequence of symbols is generated from a set of time series input data related to a moving vehicle using automatic segmentation. A grammar is extracted from the sequence of symbols, and the grammar is a subset of a probabilistic context-free grammar (PCFG). Using the grammar, time series input data can be analyzed, and a prediction of the vehicle's movement can be made. Vehicle operations for an autonomous vehicle are determined using the prediction.
