Abstract: The present application relates to a gain compensation method and module and a target voltage determination method. The gain compensation method includes: acquiring angle data of the photomultiplier tube of the detector; the angle data being used for representing a relative angle between the photomultiplier tube and an environmental magnetic field; and outputting a voltage compensation signal to an adjustable power supply circuit according to the angle data; the voltage compensation signal is used for instructing the adjustable power supply circuit to adjust a supply voltage output to each photomultiplier tube, so as to cause an output amplitude of the photomultiplier tube to reach an expected output amplitude.

Abstract: The present disclosure provides a Beidou satellite-based initial train positioning calculation method, and a positioning system. The initial train positioning calculation method includes the following operations: S1: receiving Beidou satellite signals to obtain Beidou navigation data, and verifying the validity of the data; S2: obtaining a track electronic map file, and verifying the validity of the file; S3: based on the Beidou navigation data and the track electronic map file, screening out possible track sections of the current position of the train as candidate track sections, and putting the candidate track sections into a set TrackList; S4: determining whether the number of the candidate track sections in the TrackList is 1; and S5: according to the determination result, selecting to execute a single track position comparison algorithm or a non-single track position comparison algorithm.

Abstract: The present invention relates to an LTE public network redundant system in a moving-block train control system and a communication method. The system is used for realizing communication connection between a vehicle-mounted device and a trackside device, characterized in that the LTE public network redundant system comprises a first radio station, a second radio station, a first antenna and a second wire, wherein the vehicle-mounted device is connected to the first radio station and the second radio station at the same time, the first radio station is connected to both the first antenna and the second wire; and the second radio station is connected to both the first antenna and the second wire, so that four IP channels are constructed. Compared with the prior art, the present invention has the advantages of ensuring the redundancy and security of wireless communication, etc.

Abstract: A first current output circuit transmits a first current to a channel selection circuit. The channel selection circuit selects a transmission channel for the first current based on a control signal, and transmits the first current to an output stage circuit over the transmission channel. Further, the output stage circuit outputs a second current based on the first current, such that the gate driver circuit drives a switch transistor to be turned on or turned off. Since one control circuit is provided in the channel selection circuit, hardware in the gate driver circuit is reduced to lower the cost of the gate driver circuit. In addition, since one control circuit is provided, the number of voltage sources arranged inside the control circuit is also one to reduce static power consumption of the control circuit, such that power consumption of the gate driver circuit is reduced.

Abstract: According to embodiments of the disclosure, methods, apparatuses, devices and storage medium for content presentation are provided. The method includes: presenting a set of media content items on a content presentation page; switching between a plurality of viewing modes based on a mode switching operation for the plurality of viewing modes, the set of media content items being presented in a plurality of different sizes in the plurality of viewing modes; and in response to switching to at least one predetermined viewing mode of the plurality of viewing modes, presenting the set of media content items and information associated with the set of media content items together. In this way, the efficiency of viewing media content can be improved, the diversified demands of users for viewing modes can be met, and the user experience can be improved.

Abstract: Embodiments of the present disclosure provide a switch driver circuit, and a chip. The switch driver circuit includes a driver branch and an auxiliary driver branch. The driver branch generates a control signal for the auxiliary driver branch based on a drive signal, and the auxiliary driver branch controls, based on the control signal, a to-be-driven switch to switch from a first state to a second state within a predetermined time. The switch driver circuit can control to-be-driven switches of different sizes to switch states within a predetermined time, such that the same electromagnetic interference is generated, and hence design complexity of automotive electromagnetic compatibility is lowered.

Abstract: The embodiment of the invention provides a method, an apparatus, an electronic device and a storage medium for playback control. The method comprises the following steps: playing a first video in a video playback page; in response to target triggering on the video playback page, stopping displaying a video screen of the first video, and playing audio data of the first video, where the target triggering is at least one of sliding and multi-finger touching.

Abstract: The present disclosure provides a Beidou satellite-based initial train positioning calculation method, and a positioning system. The initial train positioning calculation method includes the following operations: S1: receiving Beidou satellite signals to obtain Beidou navigation data, and verifying the validity of the data; S2: obtaining a track electronic map file, and verifying the validity of the file; S3: based on the Beidou navigation data and the track electronic map file, screening out possible track sections of the current position of the train as candidate track sections, and putting the candidate track sections into a set TrackList; S4: determining whether the number of the candidate track sections in the TrackList is 1; and S5: according to the determination result, selecting to execute a single track position comparison algorithm or a non-single track position comparison algorithm.

Abstract: The present disclosure provides a video processing method, apparatus and device, and a storage medium. The method includes: switching, in response to a preset trigger operation acting on a video playing page of a target video, to an audio playing page from the video playing page, and playing an audio file of the target video on the audio playing page; presenting, based on a playing progress of the audio file, a video picture in the target video in an audio cover display region on the audio playing page.

Abstract: A method and an apparatus for actively defending against backdoor attacks under an edge computing scenario.

Abstract: The embodiment of the invention provides a method, an apparatus, an electronic device and a storage medium for playback control. The method comprises the following steps: playing a first video in a video playback page; in response to target triggering on the video playback page, stopping displaying a video screen of the first video, and playing audio data of the first video, where the target triggering is at least one of sliding and multi-finger touching.

Abstract: A device for online co-production of carbon-containing precursors and high-quality oxygen-containing fuels from biomass pyrolysis gas includes a spray polymerization reactor, where a biomass pyrolysis gas inlet and a polymerization agent inlet are provided on the spray polymerization reactor, an outlet of the spray polymerization reactor is connected to an inlet of a catalytic reactor, and an outlet of the catalytic reactor is connected to an inlet of a condenser; a spray pipe is arranged at a top in the spray polymerization reactor, and a detachable collector for collecting the carbon-containing precursors is mounted at a bottom of the spray polymerization reactor; and a catalyst is arranged in the catalytic reactor, such that micromolecular pyrolysis gas is catalytically converted into the high-quality oxygen-containing fuels.

Abstract: Disclosed are a connection assembly for a battery module and a battery module. The connection assembly for a battery module has a housing body, a cover plate and an openable and closable door, wherein the housing body is used for supporting a plurality of components; the cover plate covers the housing body and used for covering the plurality of components on the housing body; the cover plate is provided with a second through-hole, and the second through-hole positionally corresponds to at least one of the plurality of components; the openable and closable door is movably mounted on the cover plate, and is positionally changeable between an open position and a closed position; wherein in the open position, the openable and closable door opens the second through-hole to expose the at least one of the plurality of components; and in the closed position, the openable and closable door shields at least part of the second through-hole to cover the at least one of the plurality of components on the body.

Abstract: An identification and an application of an ALV-J MHC-B2 restrictive epitope peptide are provided, which belong to the field of genetic engineering. An amino acid sequence of the provided ALV-J MHC-B2 restrictive epitope peptide is selected from SEQ ID NO:1, SEQ ID NO:2 and SEQ ID NO:3. An application of the ALV-J MHC-B2 restrictive epitope peptide in preparing an ALV epitope-based vaccine is provided. Restrictive motif of B2-haplotype chicken MHC class I molecule binding peptides is identified by in vitro elution assay. Potential epitopes in four proteins expressed by ALV-J are systematically screened by motif. The immunogenic B2-haplotype chicken ALV-J T-cell epitope peptides are identified by functional validation. It provides a material and theoretical basis for the research and development of ALV epitope-based vaccines.

Abstract: The present application discloses an electric connection assembly having a support and a connector, wherein the support comprises a support body; the support body is provided with a mounting groove; the connector is configured to be in contact electrical connection with a mating connector; the connector comprises a mounting part; part or all of the mounting part is detachably received within the mounting groove; the support and the connector are formed separately and connected to each other. Compared with the prior art, the electric connection assembly of the present disclosure implements the function of supporting, holding and assembling integrally the corresponding connectors by means of the support provided with a mounting groove. Correspondingly, the entire structure of the electric connection assembly is simplified and convenient to be assembled.