Abstract: Embodiments of this application disclose an audio signal encoding and decoding method, including: obtaining, based on spectra of M blocks of a current frame of a to-be-encoded audio signal, M transient state identifiers of the M blocks, where the M blocks include a first block, and a transient state identifier of the first block indicates that the first block is a transient state block, or indicates that the first block is a non-transient state block; obtaining group information of the M blocks based on the M transient state identifiers of the M blocks; performing grouping and arranging on the spectra of the M blocks based on the group information of the M blocks, to obtain a to-be-encoded spectrum of the current frame; encoding the to-be-encoded spectrum by using an encoding neural network to obtain a spectrum encoding result; and writing the spectrum encoding result into a bitstream.

Abstract: Provided are an engineering probiotic for degrading uric acid, and a construction method therefor and the use thereof, which belongs to the field of biotechnology. The probiotic Escherichia coli Nissle 1917 is used as an original starting strain, and an exogenous gene is introduced into a genome thereof by means of genetic engineering technology for modification, such that uric acid can be efficiently and rapidly degraded; and it is proved by tests that the rapid degradation of uric acid can be achieved in the intestinal tract and blood of mice. Compared with current lactic acid bacteria for degrading uric acid in the market, the constructed engineering probiotic has a stronger degradation ability and a better treatment effect, and therefore has a good practical application value.

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: A backlight brightness adjustment method, device, and system, and a storage medium. The adjustment method comprises: calculating a light mixing distance of a backlight module and a horizontal spacing and a vertical spacing between a plurality of lamp panels; calculating a first brightness value according to the horizontal spacing and the light mixing distance, and calculating a second brightness value according to the vertical spacing and the light mixing distance; and adjusting the brightness at splicing positions of the plurality of lamp panels according to the first brightness value and/or the second brightness value.

Abstract: The present disclosure discloses a fixed quick-release apparatus. It includes: a gear turntable, configured to connect a cycling bracket, where a limiting gear ring is disposed on a top circle of the gear turntable; a housing, configured to mount the gear turntable; and a gear stand, mounted inside the housing, where a positioning gear ring that is opposite to the limiting gear ring is disposed on a bottom circle of the gear stand, an anti-rotation plate is disposed at a top of the gear stand, and a limiting spring, disposed at a bottom of the gear stand. Because the gear stand is driven to move by pressing the button, the positioning gear ring is engaged with the limiting gear ring, to limit rotation of the locking turntable and the unlocking of the anti-rotation plate on the terminal device. Because the spring steel beads abut against the arc-shaped groove, the terminal device can be adjusted and positioned by rotating 360°.

Abstract: A 3D memory device includes a conductor/insulator stack containing a conductive layer and a dielectric layer alternatingly stacked, channel hole structures in a first region of memory cells in the conductor/insulator stack, a blocking structure adjacent to the first region, and a dummy channel hole structure in the first region. The dummy channel hole structure is adjacent to the blocking structure, and includes a dielectric material that fills a channel hole to form a first dielectric filling structure.

Abstract: A materials handling vehicle including a battery receiving space, and a removable battery assembly, wherein: the removable battery assembly includes lateral battery faces, each including a longitudinal guide structure; the battery receiving space includes opposing retention blocks, each arranged on opposite sides of the battery receiving space, and each comprising a retention lever including a fixed end and a distal end; and the longitudinal guide structure of each lateral battery face includes a lever-receiving detent that is configured to receive the distal end of one of the retention levers.

Abstract: The present disclosure provides a power conversion circuit including positive and negative input terminals, a clamping branch circuit, a first primary switch, a transformer, a rectifier circuit, a resonant inductor, a resonant capacitor, and positive and negative output terminals. The clamping branch circuit includes a clamping capacitor and a second primary switch serially connected between the first and second terminals thereof. The first terminal is coupled to the positive input terminal. The first primary switch is connected between the second terminal and the negative input terminal. The primary winding of the transformer is connected to the clamping branch circuit in parallel. The rectifier circuit includes first and second bridge arms connected in parallel. Connection terminals in the first and second bridge arms are coupled to two terminals of the secondary winding of the transformer correspondingly. The first and second bridge arms are coupled between the positive and negative output terminals.

Abstract: Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a cycloalkyl containing group at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties.

Abstract: A reverse path forwarding (RPF) check method includes, after receiving a multicast data packet from a head node, a tail node may obtain a multicast source address, a multicast group address and encapsulation information that are carried in the multicast data packet. The tail node obtains, based on the multicast source address, the multicast group address, and a first correspondence, a first identifier identifying an upstream multicast hop (UMH) node corresponding to the multicast data packet. The tail node may further obtain, based on the encapsulation information of the multicast data packet and a second correspondence, a second identifier identifying the head node corresponding to the multicast data packet. After obtaining the first identifier and the second identifier, the tail node may perform an RPF check based on the first identifier and the second identifier.

Abstract: An antenna device includes an insulating carrier and a first primary antenna having a first feeding-in section, a first auxiliary antenna having a second feeding-in section and a second grounding section, a second primary antenna having a third feeding-in section, a second auxiliary antenna having a fourth feeding-in section and a grounding face which are provided on a face of the carrier. The first primary and auxiliary antennas and the second primary and auxiliary antennas are positioned at two side edges of the carrier which are away from each other. The grounding face is positioned between both the first primary and auxiliary antennas and the second primary and auxiliary antennas. The grounding face is provided with a first grounding section adjacent to the first feeding-in section, a third grounding section adjacent to third feeding-in section and a fourth grounding section adjacent to the fourth feeding-in section.

Abstract: A method for manufacturing a semiconductor structure includes: a substrate is provided, in which the substrate is provided with a peripheral area and an array area; an insulation layer is formed on the substrate; a first mask layer with a first mask pattern is formed on the insulation layer; the insulation layer is etched by taking the first mask layer as a mask, to form a contact hole in the array area; a first electrode layer is formed; a second mask layer with a second mask pattern is formed, in which the second mask layer is arranged on the first electrode layer; and the first electrode layer and the first mask layer are etched by taking the second mask layer as a mask until the insulation layer in the array area is exposed, in which a remaining portion of the first electrode layer forms a lower electrode layer.

Abstract: Disclosed are a graphene oxide cochlear implant electrode and a manufacturing method thereof. The graphene oxide cochlear implant electrode includes an electrode tip, an electrode carrier, electrode contacts, a first positioning ring, a second positioning ring, a boosting portion, an electrode wire, a loop electrode, a loop electrode wire and a wire array, herein the electrode tip is arranged at a foremost portion of the cochlear implant electrode, the electrode carrier is silica gel grafted with a graphene oxide, the electrode carrier wraps the electrode wire and semi-wraps the electrode contacts connected to the electrode wire one by one, and the electrode carrier is slightly curved as a whole; and the electrode wire is connected to the electrode contacts one by one and forms a spiral shape through the first positioning ring, the second positioning ring and the boosting portion.

Abstract: Provided is an organic light-emitting material having an ancillary ligand with partially fluorinated substituents. The organic light-emitting material is a metal complex having a diketone ancillary ligand with partially fluorinated substituents and may be used as a light-emitting material in an organic electroluminescent device. These new types of metal complex can fine-tune the emission wavelength more effectively, reduce voltage, improve efficiency, prolong lifetimes, and provide better device performance. Further provided are an organic electroluminescent device and a compound formulation.

Abstract: In certain aspects, a three-dimensional (3D) memory device includes a first semiconductor structure, a second semiconductor structure, a third semiconductor structure, a first bonding interface between the first semiconductor structure and the second semiconductor structure, and a second bonding interface between the first semiconductor structure and the third semiconductor structure. The first semiconductor structure includes an array of NAND memory strings and a first semiconductor layer in contact with sources of the array of NAND memory strings. The second semiconductor structure includes a first peripheral circuit of the array of NAND memory strings including a first transistor, and a second semiconductor layer in contact with the first transistor. A third semiconductor structure includes a second peripheral circuit of the array of NAND memory strings including a second transistor, and a third semiconductor layer in contact with the second transistor.

Abstract: The present disclosure provides a fly-eye lens module, a lighting device, and a DLP optical engine. The fly-eye lens module includes a first plastic fly-eye lens, a second plastic fly-eye lens, and a glass triangular prism structure. The first plastic fly-eye lens is provided on a surface thereof with a first circular region, and the second plastic fly-eye lens is provided on a surface thereof with a second circular region. The first and the second circular regions are both configured as a fly-eye structure having a concave-convex structure, and are respectively fixed to two sides of the cuboid glass structure by a bonding agent. The second and the first plastic fly-eye lenses are disposed such that the light spot emitted from the point light source is incident to the fly-eye lens module via the first plastic fly-eye lens, and is emitted from the second plastic fly-eye lens.

Abstract: A sous vide cooker having a housing, a bulkhead attached to the housing to form a first cavity, a heat sink attached to the bulkhead to form a second cavity, and a skirt attached to the bulkhead to form a third cavity below the heat sink. A TRIAC is physically attached in conductive thermal communication to the heat sink in the second cavity. The cooker also has a motor, an impeller located in the third cavity, a drive shaft extending through at least the heat sink and into the third cavity and operatively connecting the motor to the impeller, and a heating element located within the third cavity.

Abstract: The present invention is related to processes for preparing ruxolitinib, or a salt thereof, and related synthetic intermediates related thereto.

Abstract: A fluorescent material containing a thiophene sulfone-olefin structural unit and a preparation method thereof are provided. In the preparation method, the thiophene sulfone compounds, olefins, oxidants and additives are dissolved in the tetrahydrofuran solvent, and are subjected to a reaction under the catalytic action of the palladium catalyst, and the alkenylated thiophene sulfone products with obvious fluorescence emission characteristics of liquid and solid can be obtained. The preparation method expands the range of substrates well, featuring good regional selectivity, high yield, mild reaction conditions and simple operation.