Abstract: A method for generating a virtual venue includes: constructing a three-dimensional virtual venue including a three-dimensional virtual sandbox and a virtual screening room, the three-dimensional virtual sandbox being a three-dimensional virtual environment in which a virtual object is located, and the virtual screening room for livestreaming a player controlling the virtual object to participate a current competition in the three-dimensional virtual sandbox; dynamically updating a location of the virtual object in the three-dimensional virtual sandbox based on an update to the current competition; generating a first livestreaming video of the virtual object participating the current competition in the three-dimensional virtual sandbox by capturing a three-dimensional field-of-view video of the virtual object in the three-dimensional virtual venue by using a first virtual camera; and playing the first livestreaming video in the virtual screening room and pushing the first livestreaming video to a terminal asso

Abstract: A device for multi-energy field induced atomic-scale CNC machining in an environmental atmosphere comprises an electromagnetic shielding chamber and a control mechanism, wherein an environmental chamber is arranged in the electromagnetic shielding chamber, a workpiece platform is arranged at the bottom of the environmental chamber, and a nanotool driven by a nanotool actuator is arranged at the top of the environmental chamber, and a gas inlet and a gas outlet which are connected to the environmental chamber are formed in the electromagnetic shielding chamber; and the control mechanism is used for controlling the workpiece platform and the nanotool actuator and applying energy fields including a force field, a temperature field, an electric field, an optical field and a magnetic field. The device has the advantages of atomic precision, high efficiency, low cost and good universality.

Abstract: A photoelectric fluid field cluster catalytic method for atomic-scale deterministic processing, comprises the following steps: selecting nanoparticles with photocatalytic activity as a photocatalytic medium, and using a photoreduction method to realize the precipitation of metal nanoparticles on a surface of the photocatalytic medium, thus creating photoelectrocatalytic clusters; illuminating a coupling area between a surface to be processed of a workpiece, the photoelectrocatalytic clusters and a flexible tool with a catalytic light source, and simultaneously applying a bias voltage to a conductive tray of the workpiece; and applying a normal load to a flexible tool head and setting a rotation speed to generate a hydrodynamic pressure to drive a polishing solution to flow, thus enabling controllable removal with atomic-level precision.

Abstract: A nitrogen-branched non-linear PEGylated lipid of Formula (1), wherein, X is —CRa< or (Ra is H or a C1-12 alkyl group); B1 and B2 are linking bonds or C1-20 alkylene groups; L1 and L2 are linking bonds or divalent linking groups; R1 and R2 are C1-50 aliphatic hydrocarbon groups or C1-50 residues of aliphatic hydrocarbon derivative, each containing 0-10 heteroatoms; Ld is a linking bond or a divalent linking group; Ncore is a multivalent group of valence y+1, and contains a trivalent nitrogen-atom branching core connected to Ld; y is 2, 3, 4, 5, 6, 7, 8, 9, or ?10; Lx is a linking bond or a divalent linking group; XPEG is a polyethylene glycol component. The non-linear PEGylated lipid herein can realize better surface modification of LNP. The lipid nanoparticle pharmaceutical composition and its formulation exhibit higher drug efficacy, especially for nucleic acid drugs.

Abstract: Provided are a D-amino acid oxidase and use thereof in the preparation of L-phosphinothricin or an intermediate thereof. Provided is a D-amino acid oxidase having an amino acid sequence comprising an amino acid residue difference as compared to SEQ ID NO: 1, the amino acid residue difference being selected from one or a plurality of: K29G/H/I/N/Q/W/Y/C/L; V42C/D/E/H/Y; E195N/Y/Q; C234L; and V326W. The activity and/or thermal stability of the D-amino acid oxidase is not lower than that of a D-amino acid oxidase having an amino acid sequence as set forth in SEQ ID NO: 1. Provided is a D-amino acid oxidase with higher thermal stability. The operating temperature range of the enzyme is expanded while the activity of the enzyme is improved. The enzyme can have a prolonged service life when used at a relatively low temperature, and can have an improved catalytic efficiency when used at a relatively high temperature.

Abstract: Described herein are methods for the acetyl transferase-catalyzed production of drimanyl-acetate compounds by the acetylation of the respective drimanyl alcohol sources performed in vitro or in vivo. Also described herein is the identification of enzymes having corresponding acetyl transferase activity from different microbial and plant sources. Also described herein is the provision of enzyme mutants derived from the newly identified enzymes. Further described herein is the provision of corresponding coding sequences of such enzymes and mutants, recombinant vectors, and recombinant host cells suitable for the production of such acetyl transferases and mutants and for performing the novel production methods of drimanyl acetate compounds. Still further described herein is a method of using such drimanyl acetates as intermediates for the production of odorant, flavor or fragrance or insect/pest control ingredients.

Abstract: Provided is an interactive dynamic fluid effect processing method, which includes: capturing a video and detecting position and pose change of a target object in the video; acquiring a position and pose mapping relationship between the target object and an object model corresponding to a first object displayed in a user display interface; determining position and pose change of the object model based on the position and pose change of the target object and the position and pose mapping relationship; and adjusting a position of a fluid displayed in the user display interface based on the position and pose change of the object model, and dynamically displaying movement change of the fluid in the user display interface.

Abstract: A display substrate and a display device are provided. The display substrate includes light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.

Abstract: The present disclosure provides a display panel, a turn-on driving method thereof and a display apparatus. The display panel includes a display area and a non-display area; the display area includes a plurality of rows of pixel units, and the non-display area includes a light-emitting control signal driving circuit, and the light-emitting control signal driving circuit is connected to the pixel units; the light-emitting control signal driving circuit includes n cascaded driving circuit units, an output terminal of each of the driving circuit units is provided with an output track and the output track is electrically connected to at least one row of pixel units and a transistor respectively; a first terminal of the transistor is connected to a first signal; a second terminal of the transistor is connected a the second signal, and a third terminal of the transistor is connected to the output track.

Abstract: A coaxial speaker includes a magnetic circuit system, a first sound production unit, and a second sound production unit. The first sound production unit and the second sound production unit are coaxially disposed. The first sound production unit surrounds the second sound production unit. The first sound production unit includes a first vibrating diaphragm and a first voice coil. The first voice coil is configured to drive the first vibrating diaphragm to vibrate and produce sound. The second sound production unit includes a second vibrating diaphragm and a second voice coil. The second voice coil is configured to drive the second vibrating diaphragm to vibrate and produce sound. The coaxial speaker ensures concentricity of the first vibrating diaphragm and the second vibrating diaphragm, reduces a height of related products, and reduces cost of the magnetic circuit system.

Abstract: The present application discloses a method and an apparatus for training a backbone network, an image processing method and apparatus, and a device. A weight selection cycle is set, where the weight selection cycle may include at least one backbone network training cycle. The backbone network is trained with sample data in the current weight selection cycle, and a cumulative weight adjustment amount for each weight in the backbone network in the current weight selection cycle is recorded. A target weight for which the cumulative weight adjustment amount meets a preset condition is selected from the backbone network based on the cumulative weight adjustment amount for each weight, and only the target weight in the backbone network is adjusted in a next weight selection cycle, to complete training of the backbone network in the next weight selection cycle based on the adjusted target weight.

Abstract: The present disclosure provides a processor, an instruction fetching method, and a computer system. The processor includes at least one processor core including an instruction fetch unit and a decoding unit; the instruction fetch unit is configured to perform detection of loop body flag instructions on acquired instructions; and send loop body instructions and non-loop body instructions in the acquired instructions to the decoding unit in a time-sharing manner according to a detection result, with the loop body flag instructions carrying a target number of loops of a loop body, and the instruction fetch unit cyclically sending the loop body instructions to the decoding unit according to the target number of loops; and the decoding unit is configured to decode received instructions.

Abstract: A method of endpoint detection includes performing a surface treatment on a wafer without plasma in a process chamber which includes an outlet configured to output an exhaust gas of the surface treatment. An exhaust plasma is generated from the exhaust gas in a plasma coupler. The exhaust plasma is analyzed to determine an endpoint of the surface treatment. A system includes a process chamber configured to receive a wafer and perform a surface treatment on the wafer without plasma. The process chamber includes an outlet configured to output an exhaust gas of the surface treatment. A plasma coupler is configured to receive the exhaust gas and generate an exhaust plasma therefrom. A detector is configured to receive and analyze the exhaust plasma.

Abstract: Examples described herein relate to a network interface device. In some examples, the network interface device includes a host interface; a direct memory access (DMA) circuitry; a network interface; and circuitry. The circuitry can be configured to: apply, for a tunnel packet, a single match-action rule that comprises a value of the encapsulation header of the tunnel packet and a value of the encapsulated header, wherein the single match-action rule is based on two or more match-action rules.

Abstract: A point cloud encoding method, including: obtaining attribute information about the attributes of a current point in a point cloud; processing the attribute information of the current point to obtain a residual value of the attribute information of the current point; using a target quantization manner, quantizing the residual value of the attribute information of the current point to obtain a quantized residual value of the attribute information of the current point; the target quantization manner comprises at least two of the following quantization manners: a first quantization manner, a second quantization manner, and a third quantization manner.

Abstract: Disclosed is an electronic device with a sounding function, including a shell structural member and a speaker. The speaker includes a first sounding unit used to emit low-frequency sounds and a second sounding unit used to emit high-frequency sounds that are coaxially arranged. The first sounding unit surrounds the second sounding unit. The shell structural member is provided with a first channel for transmitting the low-frequency sounds, a second channel separated from the first channel for transmitting the high-frequency sounds, and a common channel for communicating both the first and second channels with the outside of the electronic device. The second channel includes a front cavity of the second sounding unit and a connecting channel for communicating the front cavity with the common channel. The connecting channel is in a horn shape. The effect of the high-frequency sounds of the electronic device with a sounding function is improved.

Abstract: A method may include obtaining parameter information of a plurality of acquisition devices that communicate with the system to transmit video data to the system. The parameter information of each of the plurality of acquisition device may include transmission information of a target key frame of the video data of the acquisition device. The method may also include determining, based on the parameter information, whether there are collision key frames in the target key frames of the plurality of acquisition devices. The method may also include adjusting an original generation time of at least one of the collision key frames in response to determining that there are collision key frames, so that after the adjustment, there is no collision key frame in the target key frames of the plurality of acquisition devices.

Abstract: A method of defining a viewing region on an electronic display is performed by selecting only two points on the display and forming the viewing region such that the selected two points are located on a border of the viewing region. The selected two points may be configured to be located at opposite corners of a rectangular viewing region.

Abstract: A step, a step device and a vehicle are provided. The step includes a plurality of step segments, at least one connection step segment and a fastener, adjacent step segments include a first step segment and a second step segment, a first end of the connection step segment is slidably and detachably connected to the first step segment, a second end of the connection step segment is slidably and detachably connected to the second step segment, and the fastener is configured to fasten the connection step segment and the first step segment and to fasten the connection step segment and the second step segment.