Abstract: A recorder with an adjustable front lens includes a recorder main body and a camera. The camera is arranged on the recorder main body, and the recorder main body is electrically connected to the camera. The camera is capable of rotating relative to the recorder main body. By rotating the camera relative to the recorder main body, a user can rotate the camera to achieve the rotation of the lens, so that the user can record a scene in a desired direction, improving the practicality of the recorder and enhancing the user experience.

Abstract: An optimal configuration method and device for energy storage capacity of an optical storage system, and apparatus and storage medium are provided, and relates to the photovoltaic field. The specific steps includes: obtaining original output data of a photovoltaic power station for step output; constructing a model of genetic algorithm, and determining algorithm parameters and a fitness function of the genetic algorithm; performing optimization operation based on the genetic algorithm and the original output data to obtain a recommended energy storage capacity, and building an energy storage device according to the recommended energy storage capacity.

Abstract: Provided are a cathode material for sodium-ion batteries, a preparation method therefor, and an application thereof, and the preparation method comprises the following steps: (1) mixing a nickel source, a manganese source, and a magnesium source to obtain a ternary salt solution, adding the ternary salt solution, a precipitating agent, a complexing agent, a boron source solution, and an organic additive to a reaction vessel in parallel flow, and performing a reaction to obtain a B-doped radially-packed hydroxide precursor; and (2) mixing the B-doped radially-packed hydroxide precursor obtained in step (1) with a sodium source, and performing sintering treatment to obtain the cathode material for sodium-ion batteries.

Abstract: This application discloses an encoding and decoding method and apparatus, and a computer device, and is applied to the field of image processing technologies. In the method, a feature map of an image is obtained through an encoding network. A boundary value of a first element in the feature map is determined, and a target range corresponding to the first element is determined based on the boundary value. If the first element is in the target range, entropy encoding is performed on the first element. If the first element is outside the target range, the first element is modified to the boundary value corresponding to the first element, and entropy encoding is performed on the modified first element, or the first element is marked as an out-of-bounds element, and variable-length code encoding is performed on the first element.

Abstract: A semiconductor device includes: a substrate; a first dielectric layer over the substrate; a memory cell over the substrate in a first region of the semiconductor device, where the memory cell includes a first ferroelectric structure in the first dielectric layer, where the first ferroelectric structure includes a first bottom electrode, a first top electrode, and a first ferroelectric layer in between; and a tunable capacitor over the substrate in a second region of the semiconductor device, where the tunable capacitor includes a second ferroelectric structure, where the second ferroelectric structure includes a second bottom electrode, a second top electrode, and a second ferroelectric layer in between, where at least a portion of the second ferroelectric structure is in the first dielectric layer.

Abstract: Methods, devices and systems for signalling the use of subpictures in coded video pictures are described. One example method of video processing includes performing a conversion between a video and a bitstream of a video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a first syntax element, which indicates whether a picture of the video can be partitioned, is conditionally included in a picture parameter set (PPS) of the bitstream based on values of a second syntax element, which indicates whether identifiers of subpictures are signalled in the PPS, and a third syntax element, which indicates, in the PPS, a number of the subpictures.

Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives first downlink control information for scheduling a first UL channel and second downlink control information for scheduling a second UL channel; and a control section that controls at least one of application of first UE operation related to transmission of the first channel and transmission of the second channel in a time domain and application of second UE operation related to order of transmission of each of the downlink control information and each of the UL channels, based on whether or not respective panels or transmission/reception points (TRPs) corresponding to the first downlink control information and the second downlink control information are same.

Abstract: Provided are a method and an apparatus for implementing batch extraction of human anatomical feature parameters. The method includes: obtaining a to-be-measured sample; generating an average model; calculating a point correspondence of a spatial location formed by the average model and each to-be-measured sample; measuring each to-be-measured sample on the average model; and outputting feature parameter data of each to-be-measured sample in batch. Calculation time is reduced by combining feature point extraction with affine transformation, and corresponding points are calculated through a non-rigid registration method to achieve batch and quick measurement.

Abstract: An off-road vehicle includes a frame; front and rear wheels; a front suspension assembly; a front torsion bar assembly, a rear suspension assembly and a rear torsion bar assembly. The front suspension assembly comprises a front lower rocker arm, a front upper rocker arm, and a front wheel shaft support assembly mounted between the front lower and the front upper rocker arms. The front torsion bar assembly is located above the front upper rocker arm, and is movably connected to the front upper rocker arm. The rear suspension assembly comprises a rear lower rocker arm, a rear upper rocker arm, a control arm assembly, and a rear wheel shaft support assembly mounted between the rear lower and rear upper rocker arms. The rear torsion bar assembly is located between the rear upper and lower rocker arms, and is movably connected to the rear upper rocker arm.

Abstract: A second input image is generated by applying a target augmented reality (AR) effect to a first input image. The first input image and the second input image are provided to a first visual-semantic machine learning model to obtain output describing at least one feature of the target AR effect. The first visual-semantic machine learning model is fine-tuned from a second visual-semantic machine learning model by using training samples. Each training sample comprises a first training image, a second training image, and a training description of a given AR effect. The second training image is generated by applying the given AR effect to the first training image. A description of the target AR effect is selected based on the output of the visual-semantic machine learning model. The description of the target AR effect is stored in association with an identifier of the target AR effect.

Abstract: The subject matter described herein is directed to a chimera molecule such as a polypeptide or protein chimera useful for treating or preventing a viral infection or reducing the severity, incidence, or transmissibility of a viral infection, to nucleic acid molecules encoding the polypeptide or protein chimera, and to pharmaceutical compositions containing them. Also, methods of generating such antiviral polypeptide or protein chimera, of generating nucleic acid molecules encoding the antiviral polypeptide or protein chimera, and of generating pharmaceutical compositions containing the same, and methods of using the same for treatment or prevention of a SARS-CoV-2 infection, or to reduce the severity, incidence, or transmissibility of a of a SARS-CoV-2 infection, are described.

Abstract: Methods for fabricating an integrated circuit (IC) device, an IC die configured for probe testing, and an IC device are described therein. In one example, the method includes: forming a conductive cap above and in electrical contact with two or more of a pillars, each pillar coupled to a power contact pads of an IC die, removing the cap after testing; and depositing a hybrid bonding layer over the IC die device, the hybrid bonding layer having hybrid bond pads coupled the plurality of power contact pads and the signal contact pads of the IC die.

Abstract: A simple shear assembly includes: a base plate detachably mounted on a loading platform, and a stacked ring group opposite to the base plate; wherein the stacked ring group comprises: a plurality of stacked rings capable of sliding relative to each other; each of the stacked rings comprises a mounting frame and a holding frame provided within the mounting frame; the mounting frame comprises a support portion and a protective portion fixed to a top part of the support portion; the protective portion comprises a limiting groove and a rolling surface provided in the limiting groove; a support portion of an above adjacent stacked ring is rolled and supported on the rolling surface, in such a manner that all the stacked rings freely stagger with each other to perform interface simple shear. The protective portion can prevent the stacked rings from overturning.

Abstract: Provided is a system of generating multi-style learning tutorials based on learning preference evaluation. The system dynamically explores preferences of learners in a learning process from a time dimension through a proposed deep reinforcement learning model, so that a deep reinforcement learning agent can accurately express learning behavior features of learners and realize the personalized and accurate construction of course tutorials. At the same time, using an internal knowledge base and an external knowledge base as resource support, a multi-modal knowledge map with a plurality of definition relationships is designed to overcome the limitations of construction of a course tutorial method.

Abstract: A machining and positioning system for aerospace irregular parts and a discrete intelligent production line therefor are provided, which relates to the field of aerospace irregular part machining. In view of the problem that complex repeated positioning and poor positioning stability is required during the transportation and processing of aerospace irregular parts, a self-positioning device, a clamping device, and a support device are used to form a follow-up clamping and positioning system for the irregular part casing, reducing complex repeated positioning. The support block of the support device can fit to the inner wall of the casing, collect the support force using piezoelectric plates, and feedback and adjust the thrust of the support block based on the magnitude of the cutting radial force, maintaining stable support of the support block for the casing and meeting production needs.

Abstract: The present disclosure relates to a main control circuit board and an earphone. The main control circuit board comprises a substrate, metal wires, and a load. The metal wires include a power source wire and a loop wire that are configured to connect the load to an external power source, the power source wire and the loop wire are arranged side by side, and a current direction of the power source wire is opposite to a current direction of the loop wire. A ratio of an absolute value of a difference between a width of the power source wire or the loop wire and an average width to the average width is less than or equal to 20%, the average width being defined as an average value of widths of the power source wire and the loop wire.

Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a plurality of first nanostructures stacked over a substrate in a vertical direction. The semiconductor device structure includes a first gate structure surrounding the first nanostructures. The semiconductor device structure also includes a first gate spacer layer formed adjacent to the first gate structure. A topmost first nanostructure has a first portion below the gate spacer layer and a second portion below the first gate structure, and the first portion has a first height along the vertical direction, the second portion has a second height along the vertical direction, and the first height is greater than the second height.

Abstract: Ruthenium-iron nanoflower particles having a plurality of RuFe nanosheets, wherein the plurality of RuFe nanosheets are in a form of a nanoflower useful for the electrochemical synthesis of ammonia; an electrode including the RuFe nanoflower particles; and methods of preparation and use thereof.

Abstract: Disclosed are a display substrate and a preparation method therefor, and a display apparatus. The display substrate includes a fanout region, the fanout region includes a first transition region, an isolation dam region, and a second transition region. The fanout region includes a gate metal layer and a source-drain metal layer, the gate metal layer includes any one or more of following: a first gate metal layer, a second gate metal layer, and a third gate metal layer. The gate metal layer is provided with a power supply connection line, the source-drain metal layer is provided with a first power supply line, the first power supply line is disposed in the first transition region and the second transition region, a first power supply line of the first transition region and a first power supply line of the second transition region are interconnected through the power supply connection line.

Abstract: The present application is concerned with an oral scanner system an oral scanner being structured and/or arranged for performing a scanning procedure of at least a portion of an oral cavity of a subject, a position detector structured and/or arranged for outputting position sensor data relating to a discrete position or location at which the oral scanner currently performs the scanning procedure, a processor structured and/or arranged to receive at least the position sensor data, to process the position sensor data to determine a scanning discrete position or location within the at least portion of the oral cavity at which the oral scanner is currently performing the scanning procedure, and to compute a scanning procedure progress value being in a range between a start progress value and an end progress value for each of at least two discrete positions or locations based at least on the determined scanning discrete position or location at which the oral scanner is currently performing the scanning procedure,