Abstract: A lanthanum oxycarbonate catalyst, and a preparation method therefor and an application thereof are provided. The lanthanum oxycarbonate catalyst contains a rod-shaped lanthanum oxycarbonate catalyst and a nearly parallelogram lanthanum oxycarbonate catalyst. The lanthanum oxycarbonate catalyst can be used for efficiently performing a methane oxidative coupling reaction at a relatively low temperature.

Abstract: A container for processing a fluid biological sample, including a container body including at least a first compartment for accommodating a first fluid and a second compartment for accommodating a second fluid, an interconnecting fluid pathway for providing a fluid communication between the first and second compartments, an inner shutter arranged so as to be movable between a first position where it blocks the interconnecting fluid pathway and a second position where it allows the fluid communication through the interconnecting fluid pathway, and a first cover arranged to allow selective access from outside the container to introduce the sample into at least one of the first and second compartments and to seal the fluid within the container body, preferably in conjunction with the inner shutter. A kit for treatment of a fluid biological sample using this container is also provided.

Abstract: Provided is an IGBT device belonging to the technical field of semiconductor power devices. The IGBT device includes an n-type semiconductor layer, several p-type body regions located in the n-type semiconductor layer, a gate trench located in the n-type semiconductor layer and between adjacent p-type body regions, a gate trench located in the n-type semiconductor layer and between adjacent p-type body regions, a shielded gate located in a lower part of the gate trench, and a gate located in an upper part of the gate trench. The gate, the shielded gate, and the n-type semiconductor layer are insulated and isolated from each other. Among the several p-type body regions, at least one p-type body region has a first doping concentration and is defined as a first p-type body region, and at least one p-type body region has a second doping concentration and is defined as a second p-type body region.

Abstract: An environment managing and monitoring system and a method using same are provided. The environment managing and monitoring system is configured to assist monitors to obtain real-time information of the monitoring field and control device in the monitoring field. The environmental managing and monitoring system includes at least one sub-system and a host system. The host system is configured to output a region of interest condition and a monitoring condition to the sub-system, wherein the sub-system is configured to generate monitoring results according to the monitoring conditions, and selects an image range from the captured wide-angle dynamic real-time images according to the region of interest condition.

Abstract: Methods and apparatuses for beam reporting for non-serving cells are disclosed. A method comprises receiving a configuration of one or multiple CMR sets for channel measurement associated with a CSI-ReportConfig IE with reportQuantity set to ‘cri-RSRP’ or ‘ssb-Index-RSRP’, and nrofReportedRS-Neighboring indicating the number K of beams associated with non-serving cell(s), K is 1 or more; and transmitting a CSI report including K CRIs or SSBRIs and the measured L1-RSRP value of the resource associated with a non-serving cell indicated by each of the K CRIs or SSBRIs.

Abstract: A computing system for verifying data integrity is provided, including a host device comprising a memory controller, and a storage device. The memory controller receives original data blocks, each having an associated initial CRC value. The memory controller then segments and recombines the data blocks into logic blocks. The storage device is configured to write the logic blocks to its non-volatile memory of the storage device in the write operation, calculate a new logic block (LB) CRC value for each logic block, and calculate a combined LB CRC value. After the write operation, the memory controller combines duplicated copies of a given CRC value for each of the original data blocks, then combines them together to calculate a combined segments CRC value, and compares the combined segments CRC value to the combined LB CRC value. When the combined CRC values match, a verification response is generated verifying data integrity.

Abstract: Provided is a laser projection apparatus. The laser projection apparatus includes a light source assembly, a light-modulating assembly, and a projection lens. The light source assembly includes a base plate, a frame, a plurality of light-emitting chips, a metal ring structure, a metal cover plate, and a light-transmitting layer. The frame is disposed on the base plate, and an accommodating space is defined between the base plate and the frame, and a material of the frame is ceramic. The plurality of light-emitting chips are disposed in the accommodating space and configured to emit laser light. The metal ring structure is configured to be fixed to the frame. An outer edge of the metal cover plate is fixed to one side of the metal ring structure distal from the base plate. An edge of the light-transmitting layer is fixed to an inner edge of the metal cover plate.

Abstract: A drive method for a display panel, and a display apparatus. The drive method includes: when current original gray-scale values corresponding to sub-pixels in the same region are the same in a plurality of continuous display frames, converting the current original gray-scale values into a first target gray-scale value and a second target gray-scale value; in a current display frame of the plurality of continuous display frames, controlling a data voltage corresponding to the first target gray-scale value to be input to a first sub-pixel unit in the region, and controlling a data voltage corresponding to the second target gray-scale value to be input to a second sub-pixel unit in the region, where each of the first sub-pixel unit and the second sub-pixel unit includes at least one sub-pixel.

Abstract: The present disclosure provides a method and an apparatus of calling applications, a device, and medium. The method includes: displaying an application navigation interface in the extended reality space in response to a call-out instruction of the application navigation interface, the application navigation interface including applications categories displayed in category and icons or thumbnails of the applications contained in the application categories, and displaying a window of a first target application selected by a selection instruction of a first target object in the extended reality space in response to the selection instruction in the application navigation interface.

Abstract: A cooking device is provided. The cooking device includes: a housing having a cooking cavity; a gas circulation apparatus disposed in the housing and configured to drive gas in the cooking cavity to flow and circulate; and a heating apparatus disposed in the cooking cavity and adjacent to air holes. The gas circulation apparatus includes a gas driving part. The gas driving part includes a driving cover body and a fan blade part rotatably disposed in the driving cover body. The driving cover body has air holes provided on the side surface of the driving cover body facing towards the cooking cavity. The heating apparatus includes an outer peripheral heating apparatus, and the area enclosed by the outer peripheral heating apparatus accounts for at least half of the cross-sectional area of the cooking cavity.

Abstract: A computing device for verifying data integrity is provided, comprising a memory controller configured to receive a plurality of original data blocks. Each original data block has an associated initial CRC value. The memory controller then segments and recombines the received data blocks into logic blocks, and calculates a new logic block CRC value for each logic block. The logic blocks are transmitted with their respective new logic block CRC values to a storage device, and the logic blocks are written to non-volatile memory of the storage device in a write operation. After the write operation, a combined CRC value is calculated for the logic blocks and a combined CRC value for the original data blocks, and compare the combined CRC values. The memory controller determines whether the combined CRC values match. When they match, the memory controller generates a verification response verifying the integrity of the write operation.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting node may determine a set of geometry-specific parameters based at least in part on a symbol sequence length n and a target distribution. The transmitting node may determine a sequence of K bits based at least in part on a plurality of information bits and a bit sequence length K. The transmitting node may map, based at least in part on a composition selected from a plurality of compositions, the sequence of K bits to a sequence of n symbols using arithmetic coding based at least in part on the set of geometry-specific parameters. The transmitting node may transmit the sequence of n symbols to a receiving node. Numerous other aspects are described.

Abstract: The present disclosure provides a shift register unit, a gate driver circuit, and a display device, belonging to the field of display technology, which can solve the problem of unstable threshold voltage and current leakage of thin film transistors in existing shift register units. The shift register unit in the present disclosure includes: an input subcircuit, an output subcircuit, a pull-down control subcircuit, a pull-down subcircuit, a first noise reduction subcircuit, a first auxiliary control subcircuit, and a second auxiliary control subcircuit. The first auxiliary control subcircuit is configured to write the third reference level signal to the pull-down control node when the pull-down node is the first reference level signal, and control the pull-down subcircuit to be closed to control the first noise reduction subcircuit to be open.

Abstract: Example methods and systems provide hybrid DSP-AI acoustic echo cancellation for virtual conferences. A digital signal processing (DSP)-based linear acoustic echo cancelation (AEC) can be performed on an input audio signal to filter out linear echo present in the input audio signal and generate a first filtered audio signal. A level of nonlinear echo present in the first filtered audio signal can then be determined. When the level of nonlinear echo satisfies a threshold, an artificial intelligence (AI)-based nonlinear AEC can be performed on the first filtered audio signal to generate an AI-filtered audio signal. When the level of nonlinear echo does not satisfy the threshold, a DSP-based nonlinear AEC can be performed on the first filtered audio signal to generate a second filtered audio signal.

Abstract: Provided is an IGBT device. The IGBT device includes a p-type collector region, an n-type semiconductor layer located above the p-type collector region, a plurality of gate trenches, shielded gates, gates, and a p-type body region located in the n-type semiconductor layer and between adjacent gate trenches. The gate trenches are located in the n-type semiconductor layer. A shielded gate is located in a lower part of a gate trench. A gate is located in an upper part of the gate trench. The gate, the shielded gate, and the n-type semiconductor layer are insulated and isolated from each other. Partial shielded gates are each externally connected to a gate voltage and are each defined as a first shielded gate. Shielded gates other than the partial shielded gates are each externally connected to an emitter electrode voltage and are each defined as a second shielded gate. The first shielded gate and the second shielded gate are disposed alternately.

Abstract: A super junction semiconductor power device includes an n-type drain region, an n-type drift region, multiple p-type columns, and two gate trenches. The n-type drift region is located on the n-type drain region. The multiple p-type columns have the same width. The spacing between two adjacent p-type columns is the same. A first p-type body region is disposed on the top of each p-type column. The first p-type body region is provided with a first n-type source region. Two gate trenches are between two adjacent first p-type body regions. The spacing between the two gate trenches has at least two different spacing values. The widths of the two gate trenches between the two adjacent first p-type body regions are the same. Each gate trench is provided with a gate dielectric layer and a gate.

Abstract: Provided is a cylindrical battery which includes a case, a positive pole and an insulation sealing member. The case is a cylindrical groove structure. The positive pole is riveted to the case, and the insulation sealing member is arranged between the positive pole and the case. The insulation sealing member comprises an upper insulation sealing member and a lower insulation sealing member, the upper insulation sealing member is arranged outside the case and is engaged with and connected to the case, and the lower insulation sealing member is arranged inside the case. At least one of the upper insulation sealing member and the lower insulation sealing member is provided with an annular protrusion block, the annular protrusion block fits closely against an outer sidewall of a portion, passing through the case, of the positive pole.

Abstract: Methods of recovering cannabinoids from cell cultures include methods comprising steps of separating the cell culture at a temperature above the melting point of the cannabinoid to separate a light phase comprising liquid state cannabinoid from a heavy phase; and methods comprising treating the cell culture at a temperature below the melting point of the cannabinoid to separate a light phase from a heavy phase comprising solid state cannabinoid. Other methods include contacting the culture with a water-miscible solvent to form a water-miscible phase and an aqueous phase, separating the two phases and recovering the cannabinoid. Other methods include contacting the culture with a water-immiscible solvent to form a water-immiscible phase and an aqueous phase, separating the two phases, and recovering the cannabinoid. Other methods include washing the inner surface of a fermentation vessel with alkaline solution to recover cannabinoid attached to the vessel surface.

Abstract: The present invention relates to method and apparatus for recommending a charging station, the method includes: determining, based on personal preference information of a user of an electric vehicle, a specific area reachable by the electric vehicle and suitable for charging the electric vehicle, when receiving a request for searching for a charging station for the electric vehicle; recommending a suitable charging station located in the specific area to the electric vehicle for charging. A suitable charging station may be recommended to the electric vehicle for charging with the method and apparatus.

Abstract: A four-piece optical image capturing system. In order from an object side to an image side, the optical image capturing system along the optical axis includes a first lens with positive refractive power; a second lens with refractive power; a third lens with refractive power; and a fourth lens with refractive power; and at least one of the image-side surface and object-side surface of each of the four lenses are aspheric. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.