Abstract: Embodiments of this application provide a data transmission method and apparatus. A method at a transmit end includes: obtaining a first sequence, where the first sequence includes a first sub-sequence and a second sub-sequence; mapping the first sub-sequence into K third sub-sequences based on a preset sequence group; performing differential coding and phase modulation on the second sub-sequence to obtain a fourth sequence whose length is K?; obtaining K fifth sub-sequences based on the K third sub-sequences and the K? fourth sub-sequences; and outputting a second sequence including the K fifth sub-sequences. A method at a receive end includes: obtaining a second sequence including K fifth sub-sequences, and detecting the K fifth sub-sequences based on a preset sequence group to obtain a first sub-sequence; and performing differential demodulation based on the first sub-sequence to obtain a second sub-sequence, so that a first sequence is determined.

Abstract: Described herein are techniques to enable a mobile device to perform multi-source estimation of an altitude for a location. A baseline altitude may be determined at ground level for a location and used to calibrate a barometric pressure sensor on the mobile device. The calibrated barometric pressure sensor can then estimate changes in altitude relative to ground level based on detected pressure differentials, allowing a relative altitude to ground to be determined. Baseline calibration for the barometric sensor calibration can be performed to determine an ambient ground-level barometric pressure.

Abstract: Provided are a display panel and a display device. The display panel includes a first display region and a second display region. The display panel further includes a pixel circuit, and the pixel circuit is configured to drive a light-emitting element to emit light. The distribution density of the pixel circuit in the first display region is less than the distribution density of the pixel circuit in the second display region. The first display region includes a compensation structure, and the compensation structure includes at least one layer of compensation film. The first display region further includes multiple first light-emitting elements, and the multiple first light-emitting elements each includes an anode. The anode at least partially overlaps the compensation structure in the first direction, and the first direction is perpendicular to a plane in which a substrate is located.

Abstract: Disclosed are an ultrasonic probe, an ultrasonic apparatus and a detection method. The ultrasonic probe includes: multiple transmitting transducers; multiple receiving transducers, each receiving transducer includes a receiving component and an ultrasonic control circuit electrically connected with the receiving component, and the multiple receiving components are distributed in an array; and multiple scanning signal lines and multiple readout signal lines, each of the scanning signal lines is located in a row gap between adjacent receiving components, each of the readout signal lines is located in a column gap between adjacent receiving components, multiple receiving components in the same row are electrically connected with the same scanning signal line by means of corresponding ultrasonic control circuits, and multiple receiving components in the same column are electrically connected with the same readout signal line by means of corresponding ultrasonic control circuits.

Abstract: The present disclosure provides a microphone and a display panel. The microphone includes a first substrate, a cavity disposed on a side of the first substrate, and multiple resonant units disposed on the first substrate and located in the cavity, a resonant unit is configured to generate a frequency response in response to a particular acoustic signal, the frequency response of the multiple resonant units at least includes a resonant frequency response segment, and resonant frequency response segments of the multiple resonant units are at least partially different.

Abstract: An ammonia synthesis system and a control method thereof are provided. The ammonia synthesis system includes a hydrogen supply device, where a fluctuating amount of hydrogen is provided by the hydrogen supply device; a hydrogen storage container configured to store the hydrogen provided by the hydrogen supply device; and a nitrogen supply device configured to communicate with the hydrogen storage container to introduce nitrogen into the hydrogen storage container to maintain a stable pressure in the hydrogen storage container. The nitrogen supply device is able to introduce nitrogen into the hydrogen storage container, thus the amount of hydrogen provided is stable; in addition, the ammonia synthesis system can not only meet requirements of application scenarios where synthesis gas is produced from conventional raw material, but also be well applied to application scenarios where hydrogen for ammonia synthesis is obtained from hydrogen generation by green electricity.

Abstract: Methods, apparatus, systems, and articles of manufacture to reduce impedance discontinuities and crosstalk in integrated circuit packages are disclosed. A disclosed apparatus includes: a package substrate, and a ball grid array on a first surface of the package substrate. The ball grid array includes a first ball and a second ball adjacent the first ball. The ball grid array is to enable the package substrate to be electrically coupled to a circuit board. The apparatus further includes a metal interconnect within the package substrate. The metal interconnect is electrically coupled to the first ball. The metal interconnect includes an inductive loop that extends toward the second ball.

Abstract: A display device, including a display panel, a box, a connection frame and a vibration actuator provided on the display panel. The connection frame includes: a frame-shaped member including a first end face and a second end face arranged opposite to each other, the first end face being attached to a top face of the box, a plurality of protrusions being provided on the second end face, a surface of each protrusion away from the first end face forming a support face, and the display panel being fixed on the support face; and a connection member fixedly coupled to the frame-shaped member, and detachably coupled to the box via a fastener.

Abstract: This application provides a communication method and apparatus. The method includes: performing source encoding on a first bit sequence to obtain a second bit sequence; obtaining a fourth bit sequence based on the second bit sequence and a third bit sequence; performing channel encoding on the fourth bit sequence to obtain a fifth bit sequence; and sending the fifth bit sequence. The third bit sequence is C bits in the first bit sequence, the fourth bit sequence includes one or more information bits and one or more frozen bits, the second bit sequence is located on B information bit locations in the fourth bit sequence, the third bit sequence is located on a first bit location in the fourth bit sequence, the first bit location includes E information bit locations and F frozen bit locations, E+F=C, E is an integer and E?0, and F is an integer greater and F?0.

Abstract: Provides are an ultrasonic transducer, a fabrication method thereof and an electronic device. The ultrasonic transducer includes: an array substrate having a groove, a bottom electrode and an insulation layer, wherein an orthographic projection of the groove on the array substrate is within an orthographic projection of the bottom electrode on the array substrate, and the insulation layer covers the bottom electrode; and an opposite substrate, the opposite substrate and the array substrate are oppositely arranged and are attached to each other, the opposite substrate and the array substrate form a cavity in the groove, the opposite substrate has a top electrode and a vibrating diaphragm layer which are arranged in stack, and an orthographic projection of the top electrode on the array substrate is within the orthographic projection of the bottom electrode on the array substrate.

Abstract: Disclosed in the embodiments of the present disclosure are a display control method and apparatus, and a device and a storage medium. The method includes: plays a first video in a first display area in a video stream playing interface of a preset application program. The method further receives a switching instruction. When a preset reminding condition is met, the method switches to play a second video in the first display area. The display area for the second video is changed from the first display area to a second display area during the playing process, and the size of the second display area is smaller than the size of the first display area. In addition, the method displays preset prompt information outside the second display area in the video stream playing interface.

Abstract: Provided herein are inter alia, unnatural amino acids based on fluorosulfonyloxybenzoyl-L-lysine FSK, proteins comprising unnatural amino acids, nanobodies comprising unnatural amino acids based on fluorosulfate-L-tyrosine FSY, meta-FSY and FFY within CDR1, CDR2, or CDR3, biomolecule conjugates, and methods of making the proteins and biomolecule conjugates.

Abstract: An antenna is provided and includes a bottom plate for being connected with a mounting body and an antenna body on the bottom plate. The antenna body includes: a substrate fixedly connected to the bottom plate; a plane of the substrate intersects the bottom plate; a radiation element on the substrate; a feeding structure configured to transmit and/or receive radio frequency signals to/from the radiation element and including a signal electrode and a ground electrode on a surface of the substrate. The signal electrode is electrically connected to the radiation element. On a reference plane perpendicular to the bottom plate, an orthographic projection of the ground electrode is spaced apart from that of the radiation element, and is entirely located between the orthographic projection of the radiation element and the bottom plate. The antenna can prevent the ground electrode from reflecting the electromagnetic waves radiated by the radiation element.

Abstract: An electrode for an electrochemical cell that cycles lithium ion includes a porous electroactive layer and an electrolyte disposed in at least a portion of pores of the porous electroactive layer. The porous electroactive layer includes an electroactive material represented by: xLi2MnO3·(1-x)LiMO2 where M is a transition metal selected from the group consisting of: nickel (Ni), manganese (Mn), cobalt (Co), aluminum (Al), iron (Fe), and combinations thereof and 0.01?x?0.99. The electrolyte includes a lithium salt and a first solvent that includes 2,2,2-trifluoroethyl acetate (TFEA). The electrolyte may also include a second solvent that includes fluoroethylene carbonate (FEC) and/or a third solvent that includes diethyl carbonate (DEC). A ratio of the first solvent to the second solvent to the third solvent may be greater than or equal to about 1:1:98 to less than or equal to about 98:1:1.

Abstract: System and techniques are described herein for processing images to detect expressions of a subject. In one illustrative example, a method of recognizing facial expressions in one or more images includes obtaining, by a computing device, a first image of a person; obtaining expression information based on the first image and an anchor image associated with the person; and determining an expression classification associated with the first image based on the expression information.

Abstract: Provided herein are, inter alia, compounds of Formula (I): biomolecules (e.g., proteins, lipids, RNA, glycans) comprising the compounds; bioconjugates comprising the compounds; processes for preparing the compounds, biomolecules, and bioconjugates; and their uses.

Abstract: Systems, devices, and methods for light cover stain detection for LiDARs are provided. In one aspect, a method for stain detection on a light cover of a LiDAR includes: transmitting a laser pulse to the light cover of the LiDAR, receiving a stray light pulse generated by the laser pulse incident on the light cover of the LiDAR, and determining, based on a characteristic of the stray light pulse, whether a stain is on the light cover of the LiDAR.

Abstract: A riding-type mower includes a power supply device and the power supply device includes a plurality of battery packs and a power management module. The plurality of battery packs are detachably mounted to the riding-type mower and further configured to supply electric energy to a hand-held electric power tool. The plurality of battery packs each are provide with at least one battery cell group, and each battery cell group includes a plurality of battery cells electrically connected to each other. The power management module is configured to determine whether the plurality of battery packs satisfy a discharge condition and control a battery pack satisfying the discharge condition to discharge when the battery pack satisfies the discharge condition.

Abstract: A neural processor. In some embodiments, the processor includes a first tile, a second tile, a memory, and a bus. The bus may be connected to the memory, the first tile, and the second tile. The first tile may include: a first weight register, a second weight register, an activations buffer, a first multiplier, and a second multiplier. The activations buffer may be configured to include: a first queue connected to the first multiplier and a second queue connected to the second multiplier. The first queue may include a first register and a second register adjacent to the first register, the first register being an output register of the first queue. The first tile may be configured: in a first state: to multiply, in the first multiplier, a first weight by an activation from the output register of the first queue, and in a second state: to multiply, in the first multiplier, the first weight by an activation from the second register of the first queue.

Abstract: The present disclosure relates to the field of semiconductor technology, and proposes a material supply system and a material supply method. The material supply system includes a storage device, a gas channel and a material channel, wherein the storage device comprises a first storage tank and a second storage tank that are independently disposed, and both the first storage tank and the second storage tank are used to store a supply material; the gas channel is connected to the first storage tank, the gas channel is connected to the second storage tank, and the gas channel is used to feed gas; and the material channel is connected to the first storage tank or the second storage tank in a switchable manner to receive the supply material discharged from the first storage tank or the second storage tank.