Abstract: In some aspects, disclosed herein is a device that stores one or more pre-recorded or dynamically generated voice commands that are capable of activating a virtual assistant via a voice-based user interface and causing the virtual assistant to perform a specific task. The device may be activated manually, e.g., by pushing a button. In some aspects, the device relieves a user of a virtual assistant of the need to speak a specific command in order to cause a virtual assistant to perform a specific task.

Abstract: The present invention is a permanent magnet synchronous submersible motor comprised of a motor stator and a rotor core. The motor stator includes a stator core formed by laminating a plurality of stator punching sheets. Each of the stator punching sheets is provided with an odd number of stator slots and any two of a X-phase coil, a Y-phase coil and a Z-phase coil are wound in each of the stator slots. The rotor core is formed by laminating a plurality of rotor punching sheets wherein each of the rotor punching sheets is provided with rotor slots and a permanent magnet inserted into each of the rotor slots. Furthermore, the permanent magnet submersible motor can be started with a conventional V/F controlled (variable frequency) converter.

Abstract: Provided herein is technology relating to collecting and preparing samples. For example, the technology relates particularly, but not exclusively, to devices, systems, and kits that allow a subject to collect and prepare a sample for analysis.

Abstract: A method of preparing a C/C-SiC composite part, including: preparing, using a solvent evaporation process, carbon fiber composite powders coated with a phenol resin; according to a three-dimensional model of a to-be-prepared part, forming a green part corresponding to the to-be-prepared part using the carbon fiber composite powders and a 3D printing technology; densifying the green part to yield a C/C porous body having a density of 0.7 to 1.1 g/cm3 and an open porosity of 30 to 50%; and siliconizing the C/C porous body under vacuum, removing excess silicon to yield a primary carbon fiber reinforced carbon-silicon carbide (C/C-SiC) body, densifying the primary C/C-SiC body, to obtain a final C/C-SiC composite part.

Abstract: A semiconductor device, including: a silicon substrate; multiple fin structures, formed on the silicon substrate, where each extends along a first direction; a shallow trench insulator, located among the multiple fin structures; a gate stack, intersecting with the multiple fin structures and extending along a second direction, where first spacers are formed on two sidewalls in the first direction of the gate stack; source-or-drain regions, formed on the multiple fin structures, and located at two sides of the gate stack along the first direction; and a channel region, including a portion of the multiple fin structures located between the first spacers. and notch structures. A notch structure recessed inward is located between each of the multiple fin structures and the silicon substrate. The notch structure includes an isolator that isolates each of the multiple fin structures from the silicon substrate.

Abstract: A two-way wireless relay transmission method based on network coding is provided, wherein two end nodes and n relay nodes (wherein n?2) which form a two-way wireless relay (TWRN) are divided into three different categories, so that any two nodes in a same category are separated by at least two relay nodes belonging to other different categories, and in a same timeslot, only nodes belonging to one category are allowed to transmit data packets and nodes of the other two categories should keep silent. As a result, the mutual interference caused by the simultaneous transmission of data packets between adjacent nodes is effectively avoided, and the mutual interference caused by the simultaneous transmission of data packets by the nodes belonging to a same category is reduced.

Abstract: Disclosed herein are liquid conductive wires and methods for making and using the same. Liquid conductive wires can be used in flexible, reconfigurable, dynamic and transparent electronic devices. Liquid conductive wires can be used in a variety of systems including, but not limited to, soft robotics.

Abstract: A method and apparatus for pushing information. A specific implementation of the method includes: parsing page content browsed by a user to extract a keyword of the page content and determine a theme corresponding to the keyword; determining a preset keyword matching the keyword in a preset keyword collection; determining an associated keyword associated with the determined preset keyword based on a pre-established associated relationship of the preset keyword; and pushing information corresponding to the theme and/or the associated keyword to the user. This implementation implements targeted information push.

Abstract: An X-ray transmission inspection apparatus includes an X-ray source for irradiating a sample with X-rays, a two-dimensional sensor for detecting transmission X-rays passing through the sample, a sample moving mechanism for moving the sample, a calculation unit for processing an image of the transmission X-rays detected by the two-dimensional sensor, and a display unit for displaying a cross-sectional image. When V1 is a speed at which the sample moves, F is a frame rate of the two-dimensional sensor, A is a sample pitch of the two-dimensional sensor, and LS is a distance between the X-ray source and the two-dimensional sensor, the calculation unit creates a cross-sectional image taken at a distance L from the X-ray source by adding the images of the pixels positioned at an interval of [(LS×V2)/(L×F×A)] in a direction in which the sample moves.

Abstract: A method for producing a methanol precursor, methyl trifluoroacetate, having high-purity includes the steps of (a) preparing methyl bisulfate by mixing a catalyst with an acid solution comprising a sulfur-containing acid to provide a first mixture and supplying methane gas to the first mixture to prepare the methyl bisulfate; and (b) preparing methyl trifluoroacetate (CF3CO2CH3) by adding trifluoroacetic acid (CF3CO2H) to the first mixture including the methyl bisulfate to provide a second mixture and distilling the second mixture under heating to prepare, separate and purify the methyl trifluoroacetate (CF3CO2CH3). Methanol may be produced by adding water to the methyl trifluoroacetate (CF3CO2CH3). A methyl ester represented by Formula 2 below may be produced by adding a carboxylic acid represented by Formula 1 below to the methyl trifluoroacetate (CF3CO2CH3): R1CO2H??(1), where R1 is selected from C1-C10 alkyl groups, R1CO2CH3??(2), where R1 is as defined in Formula 1.

Abstract: The invention relates to methods and kits for determining the methylation status of a target nucleic acid molecule in a sample comprising (a) bisulfite treatment of the target nucleic acid, (b) amplifying the treated target nucleic acid with methylation-specific primers, (c) contacting the amplicons with a methylation-specific plasmonic nanoprobe and (d) determining the methylation status based on melting temperature Tm of the hybrid probe and the target nucleic acid. In particular, a plasmonic gold nanoparticle covalently coupled to a morpholino oligonucleotide probe. Also claimed are methods and kits for determining methylation status of the Septin 9 (SEPT9) gene promoter.

Abstract: Described is a method of decoding a physical sidelink shared channel (PSSCH) involving physical sidelink control channel (PSCCH) resource grid search space reduction, timing offset (TO) estimation, and reference symbol identification. Resource grid search space reduction may include identifying resource blocks (RBs) having a signal power below a first threshold such that said RBs can be excluded from further processing. Search space reduction may additionally or alternatively include identifying RB pairs where a difference in signal power between the RBs comprising each pair of RBs is above a second threshold and excluding any such said RB pairs from further processing. TO compensation may include circularly correlating TO-compensated received DMRSs and their corresponding local DMRSs to obtain energy or power profiles.

Abstract: A space-bred seawater Spirulina H11 strain. The strain exhibits high growth rate, capacity of simultaneously accumulating high contents of phycocyanin, Spirulina polysaccharides and ?-carotene, and excellent adaptability to outdoor environment, thus can be used to produce high-quality Spirulina powders, phycocyanin, Spirulina polysaccharides, and ?-carotene-rich Spirulina oil.

Abstract: The present invention relates to the field of 3D printing technology, and provides a photocurable 3D printing polyimide ink, and a preparation method and application thereof. The photocurable 3D printing polyimide ink includes the following components in the following weight percentages: 40 to 60% of a photocurable polyamic acid, 5 to 40% of an organic solvent, 10 to 50% of a reactive diluent, 1 to 10% of a chain extender, and 1 to 3% of a photoinitiator. The photocurable 3D printing polyimide ink provided by the present invention has excellent mechanical properties, thermal stability, relatively high printing accuracy and relatively low shrinkage; a molded device obtained by 3D printing has excellent properties including high accuracy, great dimensional stability, high strength and corrosion resistance, excellent flexibility, high temperature resistance and relatively low shrinkage. The method for preparing the photocurable 3D printing polyimide ink has a simple process and lower energy consumption.

Abstract: The invention relates to a method for determining interaction kinetics for an analyte. The method comprises first contacting a solution containing the analyte with immobilized ligand, or analogue thereof, immobilized on an optical sensor surface; monitoring the binding of the analyte to the immobilized ligand or analogue, wherein the binding is measured as a resulting change in a property of the surface; and automatically determining the interaction kinetics, which determining step includes first defining parts of the dissociation phase that contains kinetic information for fitting. The invention further relates to an analytical system for studying molecular interactions, which system is capable of performing the novel method, as well as a computer program product for performing the steps of the method.

Abstract: Disclosed are a self-exposure method for a surface of conductive particles anchored in a polymer layer, a method of fabricating an anisotropic conductive film using the self-exposure method, and the anisotropic conductive film. A self-exposure method for a surface of conductive particles within a polymer layer may include controlling surface energy of multiple conductive particles so that a difference between surface energy of polymer to be used to fabricate the polymer layer and surface energy of the multiple conductive particles to be included in the polymer layer is a preset difference or more, forming a polymer solution by dissolving the polymer into a solvent in which the conductive particles having controlled surface energy have been mixed, and generating the polymer layer from which at least part of a surface of the multiple conductive particles has been externally exposed due to a difference in the surface energy by drying the polymer solution.

Abstract: A contact lens includes a sensing electrode, detection circuitry, and a lens. The sensing electrode senses an impedance that changes based upon overlap of an eyelid. The detection circuitry is coupled to the sensing electrode and configured to measure the impedance via the sensing electrode. The detection circuitry is configured to generate a control signal indicative of a gaze direction of the eye based upon the electrical impedance. The lens is integrated into the contact lens and has an optical power that is adjustable. The lens is coupled to adjust the optical power in response to the control signal output from the detection circuitry and which is indicative of the gaze direction.

Abstract: A method for preparing a direct-writing polyimide additive manufacturing (AM) material includes (1) conducting ultraviolet curing immediately after the photosensitive polyimide ink is subjected to direct-writing extrusion, to obtain a polyimide precursor formed member; and (2) heat-treating the polyimide precursor formed member obtained in step (1) to obtain the direct-writing polyimide AM material. The direct-writing polyimide AM material obtained by using the method of the present invention has excellent comprehensive properties.

Abstract: A method for replacing a first sheath, whose distal end is positioned inside a vessel and whose proximal end is positioned outside the skin of a patient, with a second sheath may involve inserting a dilator over a guidewire and into the first sheath until a distal end of the dilator and a distal end of the guidewire are positioned inside the vessel. The dilator may be hubless or include a removable hub. The method may further involve removing the first sheath, thereby leaving only the dilator and the guidewire in place. After removing the first sheath, a second sheath may be passed over the dilator and the guidewire until the distal end of the second sheath is positioned inside the vessel. The method may further involve removing the dilator and the guidewire, leaving only the second sheath in place.

Abstract: A water decomposition device may include a hydrogen-generating electrode including a first external electrode and at least one first internal electrode formed integrally with the first external electrode, and an oxygen-generating electrode including a second external electrode and at least one second internal electrode formed integrally with the second external electrode. The first external electrode and the second external electrode are disposed to face each other, and the first internal electrode and the second internal electrode are disposed alternately in a direction perpendicular to the longitudinal direction thereof. Therefore, the water decomposition device may secure both transparency and durability even when an opaque material is used therefor.