Abstract: The present application provides a lifting/lowering device (1) and a harvester (1000). The lifting/lowering device (1) comprises a driving member (20), a transmission mechanism (30), a mounting mechanism (40), and a measuring mechanism (50). The transmission mechanism (30) comprises a first transmission member (31) and a second transmission member (32). The first transmission member (31) is connected to the second transmission member (32) and the driving member (20) respectively. The first transmission member (31) is driven by the driving member (20) to drive the second transmission member (32) to rotate. The mounting mechanism (40) is threadedly connected to the second transmission member (32), and the mounting mechanism (40) is configured to mount a cutter head mechanism (2). When the second transmission member (32) rotates, the mounting mechanism (40) moves towards or away from the first transmission member (31).

Abstract: The terminal sends user behavior information. The terminal receives a message pushed by a server. The terminal displays, on a first interface, content of the target article information and recommendation information corresponding to the first data. The terminal sends a request of an identifier of the message to the server in response to a first operation on the first interface. The server obtains, based on the request, content of a target article and second data related to the first data. The terminal receives the content of the target article and the second data that are sent by the server. The terminal displays, on a second interface, the content of the target article and the second data that is displayed by using a display template corresponding to the second data.

Abstract: The present disclosure provides an anti-collision device and a robot. The anti-collision device has a first connecting member, a working structure and a first elastic member, the first connecting member is fixedly connected to a robot body, the working structure is arranged on a side of the first connecting member away from the robot body, the first elastic member is located between the first connecting member and the working structure, and the first elastic member is deformed when the working structure is impacted.

Abstract: The present disclosure provides a gel electrolyte precursor and use thereof. The gel electrolyte precursor comprises a gel matrix monomer, a flexible additive, a polymerization initiator, and a lithium salt. The gel matrix monomer comprises an acrylonitrile-based monomer. The use of same in a semisolid battery achieves good electrical performance, and also reduces the amount of an electrolyte used. An acrylonitrile-based polymer obtained by the in-situ polymerization and gelation of an acrylonitrile-based monomer has good flame retardant performance and high voltage resistance, improving the safety performance of a battery.

Abstract: An electronic apparatus includes: an artificial intelligence AI processor, configured to select a first image processing model from a plurality of image processing models based on scenario information. The AI processor performs first image signal processing on a first image signal by using the first image processing model, to obtain a second image signal. The first image signal is obtained based on first image data output by an image sensor. The scenario information represents feature classification of the first image signal. An image signal processor ISP, configured to perform second image signal processing on the second image signal, obtains a first image processing result. The electronic apparatus provided in embodiments of this application can improve an image processing effect.

Abstract: The present disclosure provides a gel electrolyte precursor and use thereof. The gel electrolyte precursor comprises a gel matrix monomer, a flexible additive, a polymerization initiator, and a lithium salt. The gel matrix monomer comprises an acrylonitrile-based monomer. The use of same in a semisolid battery achieves good electrical performance, and also reduces the amount of an electrolyte used. An acrylonitrile-based polymer obtained by the in-situ polymerization and gelation of an acrylonitrile-based monomer has good flame retardant performance and high voltage resistance, improving the safety performance of a battery.

Abstract: Disclosed are an electrolyte material, a preparation method therefor and the use thereof. The electrolyte material comprises a core and a shell covering the outside of the core, wherein the core comprises flame retardant particles, and the shell comprises an ion-conductive polymer, with the ion-conductive polymer comprising a combination of a lithium salt and a polymer electrolyte.

Abstract: A multi-rotor unmanned aerial vehicle (UAV) includes a central body including an outer surface and an inner surface, a plurality of branch members connected to the central body, each branch member configured to support a corresponding actuator assembly, one or more receiving structures positioned on the outer surface of the central body and configured to receive one or more electrical components, the one or more electrical components comprising at least a battery of the UAV, and an indicator light disposed at an opening or a window on one of the plurality of branch members, wherein the opening or the window is made of a transparent or semi-transparent material.

Abstract: A multi-rotor unmanned aerial vehicle (UAV) includes a central body, a plurality of branch members connected to the central body, each branch member configured to support a corresponding actuator assembly, a communication module disposed within the central body and configured to establish a communication channel between the UAV and a remote device, and an indicator light disposed on one of the plurality of branch members. The indicator light is configured to indicate whether the communication channel is established.

Abstract: Provided is a filling mining method for a fully-mechanized top coal caving working face, which relates to the field of mining engineering technologies. The method solves the technical problems of roof control of the fully-mechanized top coal caving working face and a large ground deformation of top coal caving mining.

Abstract: A coal measures fault formation simulation experimental device and a normal and reverse fault simulation experiment method relate to the field of similar material simulation experiment technology. The device includes a hydraulic lifting apparatus, a lower angle adjusting apparatus, a push rod apparatus, an upper loading apparatus, an upper angle adjusting apparatus, a lateral loading apparatus and a transparent side plate. The hydraulic lifting apparatus and the lower angle adjusting apparatus are below the experimental body, the upper loading apparatus and the upper angle adjusting apparatus are above the experimental body, the transparent side plate is disposed at a rear side surface of the experimental body, and the lateral loading apparatus is disposed at an end face of the experimental body.