Abstract: This application discloses an information interaction method and apparatus, a storage medium, and an electronic apparatus. The method includes obtaining a first target operation instruction in a VR scenario; selecting and displaying a first virtual operation panel corresponding to the first target operation instruction from a plurality of virtual operation panels in the VR scenario, wherein the plurality of virtual operation panels are displayed mutually independently, and are respectively configured to display different interactive objects. The method may further include obtaining an interactive operation instruction generated by an interactive operation performed by an interactive device on a target interactive object displayed in the first virtual operation panel, the interactive device being associated with the VR scenario; and in response executing a target event corresponding to the target interactive object in the VR scenario.

Abstract: A system for perceiving and co-processing intelligent connected vehicle-oriented scene image data, including a device for perceiving and processing single-mobile intelligent agent image data, a roadside infrastructure apparatus and a remote server. An in-vehicle image processing platform in the device enables single-view image data processing by performing algorithms such as target detection and recognition, and scene stream estimation. A roadside image processing platform in the roadside infrastructure apparatus enables depression angle image data processing and multi-view image fusion processing by performing algorithms such as target detection and recognition, and image fusion.

Abstract: The invention relates generally to cooling matter using laser emission, and in particular, to cooling perovskite materials using laser emission.

Abstract: The present invention discloses a core-shell structure supported tungsten composite catalyst and a preparation method and use thereof. Most of the existing synthesis methods of the main ring of quinolone drugs have the defects of many synthesis steps, cumbersome operation, large amount of three wastes, higher costs and the like. The present invention prepares a magnetic separable core-shell supported tungsten composite catalyst, WO3/SiO2/Fe3O4, by preparing Fe3O4 colloid and SiO2/Fe3O4 composite nano-particles. This magnetic separable core-shell supported tungsten composite catalyst, WO3/SiO2/Fe3O4, is used to catalyze and synthesize quinolone compounds. The present invention provides an efficient preparation method of quinolone compounds using a catalyst which can be recovered by magnetic separation and recycled.

Abstract: A smart module for a smart shoe includes a second cover, a first cover, an antenna, a circuit board, and a power supply unit. The second cover cooperates with the first cover to form a housing for receiving the antenna, the circuit board, and the power supply unit. The antenna and the power supply unit are electrically connected to the circuit board. The power supply unit supplies power to the circuit board and the antenna. The first cover includes at least one positioning member. The antenna includes at least one positioning hole. The circuit board includes at least one positioning hole. The positioning holes in the antenna and the circuit board align with and receive the positioning member of the first cover to ensure that the antenna and the circuit board are mounted at appropriate locations in the first cover. Therefore, the smart module facilitates easy assembly.

Abstract: Embodiments of the present application disclose a method and an apparatus for controlling placement of a virtual character and a storage medium. The method includes: receiving a first instruction in a virtual reality (VR) scene, the first instruction indicating moving a virtual character from a first position by a designated movement; determining a second position by the designated movement from the first position in response to the first instruction; removing the virtual character from the first position; and placing the virtual character at the second position, the virtual character not appearing between the first position and the second position after being removed from the first position.

Abstract: Embodiments of the present disclosure describe a white light illumination system using InGaN-based orange nanowires (NWs) LED, in conjunction with a blue LD for high speed optical wireless communications. By changing the relative intensities of an ultrabroad linewidth orange LED and narrow-linewidth blue LD components, a hybrid LED/LD device achieves correlated color temperature (CCT) ranging from 3000 K to above 6000K with color rendering index (CRI) values reaching 83.1.

Abstract: Aspects of the disclosure provide methods and apparatuses for displaying a gesture in a virtual reality (VR) environment. In some examples, an apparatus for displaying the gesture in the virtual reality (VR) environment includes processing circuitry. The processing circuitry displays a first gesture object corresponding to a state of a virtual hand when the virtual hand does not hold a virtual article. The processing circuitry displays a second gesture object when a ray of the first gesture object intersects the virtual article. The second gesture object indicates that the virtual article is in front of the virtual hand. The ray extends from the virtual hand. The processing circuitry displays a third gesture object in response to a selection instruction. The third gesture object corresponds to a state of the virtual hand when the virtual hand holds the virtual article.

Abstract: Embodiments described herein provide various examples of an automatic obstacle avoidance system for unmanned vehicles using embedded stereo vision techniques. In one aspect, an UAV capable of performing autonomous obstacle detection and avoidance is disclosed. This UAV includes: a stereo vision camera set coupled to the one or more processors and the memory to capture a sequence of stereo images; and a stereo vision module configured to: receive a pair of stereo images captured by a pair of stereo vision cameras; perform a border cropping operation on the pair of stereo images to obtain a pair of cropped stereo images; perform a subsampling operation on the pair of cropped stereo images to obtain a pair of subsampled stereo images; and perform a dense stereo matching operation on the pair of subsampled stereo images to generate a dense three-dimensional (3D) point map of a space corresponding to the pair of stereo images.

Abstract: Embodiments described herein provide examples of a real-time visual object tracking system. In one aspect, an UAV capable of performing real-time visual tracking of a moving object includes a processor; a memory coupled to the processor; and a camera coupled to the processor and the memory and to capture a video of the moving object. This UAV additionally includes a visual tracking module to: receive a first video image and a first location of the object; receive a second video image following the first video image; place a first search window in the first video image and a second search window in the second video image at the same location as the first search window; compute a correlation between an image patch within the first search window and an image patch within the second search window; and determine an updated location of the object in the second video image.

Abstract: A smart module for a smart shoe includes a second cover, a first cover, an antenna, a circuit board, and a power supply unit. The second cover cooperates with the first cover to form a housing for receiving the antenna, the circuit board, and the power supply unit. The antenna and the power supply unit are electrically connected to the circuit board. The power supply unit supplies power to the circuit board and the antenna. The first cover includes at least one positioning member. The antenna includes at least one positioning hole. The circuit board includes at least one positioning hole. The positioning holes in the antenna and the circuit board align with and receive the positioning member of the first cover to ensure that the antenna and the circuit board are mounted at appropriate locations in the first cover. Therefore, the smart module facilitates easy assembly.

Abstract: Implementations of the present specification include receiving, by a blockchain node in the blockchain network, a request to read a particular block of the blockchain, wherein the request is received from a light-weight node of the blockchain network and includes an identity of the light-weight node, and wherein the particular block includes an original Merkle tree associated with the particular block; identifying, by the blockchain node, permissions associated with the identity of the light-weight node; generating, by the blockchain node, an isolated Merkle tree based on the original Merkle tree included in the block, the isolated Merkle tree including only transactions from the original Merkle tree that are determined to be accessible by the light-weight node based on the identified permissions, wherein the isolated Merkle tree is consistent with the original Merkle tree; and sending, by the blockchain node, a response to the light-weight node including the isolated Merkle tree.

Abstract: According to some aspects, a quantum information system is provided that includes an ancilla qubit; a qudit coupled to the ancilla qubit, a detector configured to generate a detection result based on a quantum state of the ancilla qubit, and a driving source coupled to the qudit and the ancilla qubit and configured to apply at least one qudit driving signal to the qudit based on the detection result and at least one qubit driving signal to the qudit based on the detection result.

Abstract: Implementations of the present disclosure include initializing a nonce table comprising a plurality of nonce slots, each nonce slot being associated with a nonce index and a status, and storing a respective nonce value; receiving a request for a nonce value from an application, and in response, requesting a nonce value from the nonce table; receiving a nonce value in response to the request, a status of a nonce slot corresponding to the nonce value being set to occupied; and in response to a transaction using the nonce value being one of successful and failed, executing one of: releasing the nonce value within the nonce slot and setting the status to unoccupied, if the transaction is successful, and setting the status to unoccupied, if the transaction failed.

Abstract: A lithium-sulfur battery comprises a cathode electrode comprising from 80% to 100% lithium polysulfide based on the total weight of sulfur adsorbed at the cathode when the lithium sulfur battery is fully charged, and a high specific surface area electrically conductive material. An anode electrode comprises lithium. A porous and electrically insulating membrane is provided between the cathode and the anode electrodes. An electrolyte is adsorbed into and between cathode electrode, the anode electrode, and the membrane. A cathode current collector is electrically connected to the cathode and an anode current collector is electrically connected to the anode. A porous and electrically conductive interlayer can be provided between the membrane and at least one selected from the group consisting of the cathode and the anode. A method of making a battery is also disclosed.

Abstract: Embodiments of the present disclosure provide devices and systems including a material including a halide perovskite and/or phosphor to produce and/or communicate using visible light, and the like.

Abstract: A method for processing messages pertaining to an event includes receiving a plurality of messages pertaining to the event from electronic communication devices associated with a plurality of observers of the event, generating a first message stream that includes only a portion of the plurality of messages corresponding to a first participant in the event, identifying a first sub-event in the first message stream with reference to a time distribution of messages and content distribution of messages in the first message stream, generating a sub-event summary with reference to a portion of the plurality of messages in the first message stream that are associated with the first sub-event, and transmitting the sub-event summary to a plurality of electronic communication devices associated with a plurality of users who are not observers of the event.

Abstract: The present invention discloses a core-shell structure supported tungsten composite catalyst and a preparation method and use thereof. Most of the existing synthesis methods of the main ring of quinolone drugs have the defects of many synthesis steps, cumbersome operation, large amount of three wastes, higher costs and the like. The present invention prepares a magnetic separable core-shell supported tungsten composite catalyst, WO3/SiO2/Fe3O4, by preparing Fe3O4 colloid and SiO2/Fe3O4 composite nano-particles. This magnetic separable core-shell supported tungsten composite catalyst, WO3/SiO2/Fe3O4, is used to catalyze and synthesize quinolone compounds. The present invention provides an efficient preparation method of quinolone compounds using a catalyst which can be recovered by magnetic separation and recycled.

Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a semiconductor substrate. The semiconductor device structure includes a gate stack over the semiconductor substrate. The gate stack includes a first insulating layer, a charge trapping structure, a second insulating layer, and a gate electrode. The first insulating layer separates the semiconductor substrate from the charge trapping structure. The charge trapping structure is between the first insulating layer and the second insulating layer. The gate electrode is over the second insulating layer. The charge trapping structure includes a first layer and a second layer. The first layer includes zinc oxide, tin dioxide, titanium oxide, zinc tin oxide, indium oxide, indium zinc oxide, indium gallium zinc oxide, zinc oxynitride, tin oxynitride, titanium oxynitride, zinc tin oxynitride, indium oxynitride, indium zinc oxynitride, or indium gallium zinc oxynitride.

Abstract: A method of manufacturing a semiconductor structure includes providing a first lot including a plurality of first wafers and a second lot including a plurality of second wafers; deriving a first processing time for processing the first lot; deriving a second processing time for processing the second lot; deriving a processing time difference between the first processing time and the second processing time; loading a first mask on a mask stage; processing the first lot on a wafer stage; removing the first mask from the mask stage; loading a second mask on the mask stage; and processing the second lot on the wafer stage, wherein a time interval between accomplishment of the processing of the first lot and beginning of the processing of the second lot is substantially greater than or equal to the processing time difference.