Abstract: A key structure includes a housing, a mounting seat, a key component, a clamping holder, a switch device, and a flexible printed circuit, where the mounting seat is mounted on the housing, the clamping holder and the key component are both mounted on the mounting seat, and the switch device is mounted on the clamping holder. The mounting seat and the clamping holder are between the switch device and the key component.

Abstract: In a method for sending signals in network communications, an apparatus obtains a plurality of extended sequences, with each extended sequence comprising an original sequence and an additional sequence. In each extended sequence, the additional sequence is located before the original sequence, and the additional sequence includes last m codes of the original sequence. Alternatively, the additional sequence is located after the original sequence, and the additional sequence includes first n codes of the original sequence. The apparatus generates a plurality of target sequences based on the plurality of extended sequences and a security code corresponding to each extended sequence. The apparatus then generates a first impulse signal based on the plurality of target sequences, and sending the first impulse signal.

Abstract: The present disclosure provides a method, apparatus, medium and device for extracting a river drying-up region and frequency, and belongs to the technical field of remote sensing. The method for extracting a river drying-up region and frequency can be applied to efficiently acquiring river drying-up information for a long time within the large spatial region. With the inverse normalized difference water index (iNDWI) and the maximum value composite (MVC) method for the remote sensing images, the present disclosure omits the troublesome step of separately extracting a river range for each image in the conventional method. In addition, the present disclosure quickly obtains the drying-up frequency by counting the total number of available images and the number of non-water images at the same pixel position, and yields a greater efficiency for extracting the river drying-up region and frequency.

Abstract: A GaN-based High Electron Mobility Transistor (HEMT) having a multi-threshold voltage, a preparation method, and an application therefor are provided. The HEMT structure includes a channel layer and a barrier layer; a Two-dimensional Electron Gas (2DEG) is formed between the channel layer and the barrier layer; the barrier layer is at least provided with a first source area, a second source area, a first gate area, a second gate area, a first drain area, and a second drain area; the first source area, the first gate area, and the first drain area cooperate with each other, so as to form a first HEMT unit; the second source area, the second gate area, and the second drain area cooperate with each other, so as to form a second HEMT unit. that the HEMT may well meet application requirements of high and low threshold logic circuits.

Abstract: A semiconductor structure is disclosed. The semiconductor structure includes a staircase structure disposed over a substrate. The staircase structure includes a plurality of layer stacks, where each layer stack is made of a first material layer over a portion of a second material layer. The staircase structure further includes a plurality of landing pads, where each landing pad is disposed over another portion of the second material layer of a respective layer stack.

Abstract: The present invention relates to a carbon-doped alloy steel with super room-temperature ductility, the carbon-doped alloy steel includes a chemical composition including 10-30 wt. % of nickel (Ni), 0.01-5 wt. % of silicon (Si), 0.01-2 wt. % of carbon (C), and 60-90 wt. % of iron (Fe). Different from traditional super-plastic alloys that could only obtain superplasticity at high homologous temperatures, the present invention introduces a super-ductile steel that exhibits a giant uniform elongation of over 100% at room temperature. Meanwhile, different from deformation softening in super-plastic alloys, super-ductile steels show an exceptional work-hardening capability, enabling them to obtain enough strength for application.

Abstract: A thermal interface material including at least a diamond-containing filler; a silicone oil, as well as a plurality of additives.

Abstract: Item recognition of a given item is trained on a single item from different views. The item recognition is then trained on images of the given item partially occluded by a second item having same, similar, or different shapes and features to that of the given item. General features of the item are noted and used to detect the given item when the given item is presented with multiple different items having multiple different occluded views.

Abstract: A display panel and a driving method thereof and a display device are provided. The display panel includes a pixel circuit and a light-emitting element, the pixel circuit including a driving transistor, a first reset transistor and a second reset transistor; the first reset transistor configured to reset the gate electrode of the driving transistor, and the second reset transistor configured to reset the first electrode of the light-emitting element; a first initialization signal line connected with the gate electrode of the driving transistor through the first reset transistor; and a first power line. The first reset transistor is a dual-gate transistor and includes a first channel and a second channel which are connected by a first conductive connection portion; an orthographic projection of the first conductive connection portion on the base substrate is completely within an orthographic projection of the first power line on the base substrate.

Abstract: Active machine learning with model selection is used to control a printing system to efficiently, accurately, and autonomously predict jettability diagrams for different print head and ink combinations. A print system may be controlled using active machine learning to efficiently and accurately predict a jetting behavior for different combinations of ink and inkjet print heads at different settings/values for operating parameters of the print heads, such as firing voltage, pulse width/dwell time, frequency, ramp up, ramp down, meniscus pressure, heating rate, hold time, transducers' positions, geometries, and heating power, and/or other operating parameters of the print heads.

Abstract: A use of 2-amino-3-methylhexanoic acid in promoting plant growth and increasing yield and use of the 2-amino-3-methylhexanoic acid in promoting growth of a plant seedling and/or promoting growth of a mature plant and increasing yield. The 2-amino-3-methylhexanoic acid is a natural product, has a simple structure, and is easy for industrial production. The 2-amino-3-methylhexanoic acid can promote plant growth and has the potential of being developed into a natural plant growth regulator. The 2-amino-3-methylhexanoic acid is a natural product, low in dosage, and environmentally friendly, has a remarkable promoting effect on plant growth, and thus is a green and efficient biological source plant growth regulator, which indicates the utilization value and application prospects of such substances in agricultural production.

Abstract: A display substrate including a first display area including a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the display substrate includes a plurality of first pixel groups each of which includes two third sub-pixels, one first sub-pixel and one second sub-pixel, the two third sub-pixels are arranged adjacent to each other along a first direction, the one first sub-pixel and the one second sub-pixel are adjacent to at least one of the two third sub-pixels, located on both sides of a straight line passing centers of the two third sub-pixels, and arranged along a second direction different from the first direction; a size of the first sub-pixel and the second sub-pixel in the second direction is smaller than a size of the first sub-pixel and the second sub-pixel in the first direction, respectively.

Abstract: The present disclosure provides a central staged combustion chamber with self-excited sweeping oscillating fuel injection nozzles, including an outer housing with a cavity inside, a main stage coaxially disposed with the outer housing, and a pilot stage coaxially disposed with the outer housing. An annular fuel passage is used for connecting a plurality of self-excited sweeping oscillating fuel injection nozzles, and the self-excited sweeping oscillating fuel injection nozzles are suitable for injecting oscillating liquid fuel into a primary swirling passage. The fuel is output in a fan shape through each of the self-excited sweeping oscillating fuel injection nozzles and is dispersed by an incoming flow through the swirling passage, so that the atomization performance and spatial distribution uniformity of the fuel can be greatly improved.

Abstract: A vision-based self-checkout terminal is provided. Purchased items are placed on a base and multiple cameras take multiple images of each item placed on the base. A location for each item placed on the base is determined along with a depth and the dimensions of each item at its given location on the base. Each item's images are then cropped, and item recognition is performed for each item on that item's cropped images with that item's corresponding depth and dimension attributes. An item identifier for each item is obtained along with a corresponding price and a transaction associated with items are completed.

Abstract: Here discloses an optical display system and an electronics device. The optical display system comprises: image-generating display; controllable polarization rotator module, which receives light from the image-generating display and outputs the light into polarized light with a first polarization and/or a second polarization under control; a first reflective lens, which reflects the polarized light with a first polarization to a pupil of an observer; and a second reflective lens, which reflects the polarized light with a second polarization to the pupil, wherein the first reflective lens and the second reflective lens have different optical powers to produce image planes at different depths.

Abstract: An indoor positioning system includes: a wireless network device, configured to receive a positioning request initiated by positioning tag, and send a handshake communication request; a positioning headend, configured to communicate with the wireless network device and the positioning tag according to the handshake communication request, and collect radio wave signals sent by the positioning tag, and calculate the phase information of the positioning tag according to the radio wave signal; a positioning unit, configured to calculate position coordinate information of the positioning tag according to the phase information, thereby improving the positioning accuracy and reducing the cost.

Abstract: A display substrate including a first display area including a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the display substrate includes a plurality of first pixel groups each of which includes two third sub-pixels, one first sub-pixel and one second sub-pixel, the two third sub-pixels are arranged adjacent to each other along a first direction, the one first sub-pixel and the one second sub-pixel are adjacent to at least one of the two third sub-pixels, located on both sides of a straight line passing centers of the two third sub-pixels, and arranged along a second direction different from the first direction; a size of the first sub-pixel and the second sub-pixel in the second direction is smaller than a size of the first sub-pixel and the second sub-pixel in the first direction, respectively.

Abstract: The present disclosure provides a bespoke eyewear and a system and a method for manufacturing the bespoke eyewear. In one aspect, the method for manufacturing the bespoke eyewear frame includes capturing one or more facial images of a user using an image capturing device, generating a facial model from said one or more facial images, extracting a plurality of facial parameters from the facial model, generating a three-dimensional digital model of an eyewear frame based at least in part on one or more of the facial parameters of the user, and transmitting the three-dimensional digital model to an additive manufacturing apparatus for additively manufacturing the bespoke eyewear frame.

Abstract: Embodiments of the present disclosure disclose a shift register unit, a driving method thereof, and a device. The shift register unit includes an input circuit, a node control circuit, a first control output circuit, a second control output circuit and an output circuit. By providing the first control output circuit and the second control output circuit, the first control output circuit and the second control output circuit may operate alternately, so that the first control output circuit and the second control output circuit may have time for characteristics recovery respectively, thus improving the service life and output stability of the shift register unit.

Abstract: Disclosed are a negative electrode slurry composition and application. The negative electrode slurry composition includes a solvent and negative electrode material components dispersed in the solvent. The negative electrode material components include a negative electrode active substance, a conductive agent, a dispersant, and a binder. The binder includes a binder A and a binder B. The binder A is at least one of polyacrylic acid, polyacrylic salt, polyacrylate, polyacrylonitrile, or polyimide binders. A monomeric unit contained in the binder B is at least one of an aromatic vinyl monomeric unit, an aromatic conjugated diene monomeric unit, an alkenyl unsaturated carboxylic acid monomeric unit, an unsaturated alkyl carboxylate monomeric unit, or an acrylonitrile monomeric unit.