Abstract: An optical scanner system for a LiDAR includes a light emitter, a light receiver, a controller, and a scanner. The light emitter can emit a detection laser. The light receiver can receive an echo generated by reflecting the detection laser by an object and generate an electrical signal based on the echo. The controller can communicate with the light emitter and the light receiver. At least one of the light emitter or the light receiver is arranged on a same circuit board as the controller. The scanner can reciprocate on two sides of an equilibrium position, scan the detection laser towards the outside of the LiDAR, and return the echo back to the inside of the LiDAR.

Abstract: Provided are a method and system for predicting the generated power of the new energy station based on the recurrent graph neural network. The method includes the following: A graph neural network model is pre-constructed, where the graph neural network model includes a graph neural network layer, a recurrent neural network layer, and a first full-connection layer; the historical weather forecast data of a target station, the actual power data of the target station, the historical weather forecast data of a source domain station, and the actual power data of the source domain station are acquired, and the graph neural network model is trained based on the historical weather forecast data of the source domain station and the actual power data of the source domain station to obtain a trained graph neural network model.

Abstract: A riding mower includes a mowing assembly including a mowing element and a deck accommodating at least part of the mowing element; a traveling assembly including at least left traveling wheels and right traveling wheels; a traveling electric motor for driving the traveling assembly; a grass collecting pipe connected to the deck to guide grass clippings; and a power supply device configured to supply power to the traveling electric motor. The projection of the grass collecting pipe on a first plane supporting the traveling assembly is at least partially located between the left traveling wheels and the right traveling wheels. The maximum total energy of the power supply device is greater than or equal to 0.5 kW·h and less than or equal to 6 kW·h.

Abstract: This application provides a signal sending method, an electronic device, and a computer-readable storage medium, which are applied to the field of communication technologies, to resolve problems of poor transmission efficiency and unstable performance of a user traffic channel that are caused because a current hybrid beamforming technology cannot resolve a compatibility problem of a plurality of analog beams. According to the signal sending method, an antenna array may be decoupled into a plurality of subarrays based on obtained configuration information, and a controller may control the plurality of subarrays to output a plurality of types of analog beams at a same moment.

Abstract: A non-transitory computer readable memory storing instructions, which, when executed by at least one data processor, causes the at least one data processor to perform the following operations. A first set of data characterizing a sample being examined with a radiation source and a detector is received. The first set of data includes a location of the sample and a duration of time the sample is at the location. A second set of data characterizing radiation dosage based on location is received. A dosage across the sample is determined based on the first set of data and the second set of data. A third set of data characterizing radiation dosage across the sample based on the determined dosage is provided.

Abstract: The present disclosure provides methods for rapidly assaying the titer of an RNA viral vector such as a lentiviral vector. The method can be used to quickly evaluate the titer of intermediate products in various steps of a lentiviral vector production process.

Abstract: The present invention belongs to the technical field of fluorine chemical industry, specifically relates to a preparation method of trans-1,1,1,4,4,4-hexafluoro-2-butene, comprising the following steps: preheating trans-2-ethoxy-1,1,1,4,4,4-hexafluoro-2-butene, mixing with hydrogen, reacting to obtain trans-1,1,1,4,4,4-hexafluoro-2-butene under the action of a catalyst. The selectivity of trans 1,1,1,4,4,4-hexafluoro-2-butene prepared by the preparation method of the present invention can reach 99%, the preparation method adopts moderate reaction temperature and produces less three wastes. The trans 1,1,1,4,4,4-hexafluoro-2-butene prepared by the preparation method has great application value in electric power, electrical appliances and electronics industries.

Abstract: An apparatus configured to determine an operation is to be performed, wherein the operation is related to a service type, determine that a current network connection does not support the operation, generate, for transmission to a bootstrap server, a request for a temporary bootstrap profile to perform the operation, wherein the request comprises an indication of the service type, process the temporary bootstrap profile and use the temporary bootstrap profile to perform the operation.

Abstract: A method for repairing a virtual machine in a cloud environment is provided. A server device receives a first request that is transmitted by a console, the first request includes a virtual machine identifier of a target virtual machine and requests a repair of the target virtual machine. An image database is queried for a target image identifier of a pre-made Live CD image corresponding to the virtual machine identifier. A target cloud block storage is created for storing the Live CD image. The target cloud block storage is mounted to a host machine that hosts the target virtual machine to cause the host machine to download the Live CD image from an image repository to store to the target cloud block storage, mount the target cloud block storage to the target virtual machine, and boot the target virtual machine via the target cloud block storage.

Abstract: This application sets forth techniques for transfer of a cellular wireless service plan associated with a SIM or an eSIM between non-linked wireless devices. A target wireless device broadcasts an advertisement beacon requesting transfer of a cellular wireless service plan. After successful authentication with a source wireless device, using a manually entered verification code or a QR verification code, the target wireless device selects a cellular wireless service plan to transfer. The source wireless device obtains a transfer token from an MNO entitlement server for transfer of the selected cellular wireless service plan and provides the transfer token to the target wireless device via a secure, short distance Bluetooth connection or, alternatively, embedded in an encrypted QR code. The target wireless device uses the transfer token to obtain a new eSIM associated with transfer of the cellular wireless service plan.

Abstract: A detection method (100) of a lidar (200), the lidar (200), and a system for a vehicle (300) including the same. The lidar (200) is capable of rotating around a rotating shaft, and includes an emitting unit (210) having a plurality of laser emitters (211). The detection method (100) includes: step S101, controlling the plurality of laser emitters (211) to emit laser beams for detection so that the lidar (200) has a non-uniform angular resolution along a horizontal direction; step S102, receiving echoes of the emitted laser beams for detection reflected by a target object and converting the echoes into electrical signals; and step S103, calculating a distance and/or reflectivity of the target object according to the electrical signals. Thereby, an angular resolution along a horizontal direction of the lidar (200) is flexibly configured, flight time and power consumption are reduced, and a detection range of the lidar (200) is improved.

Abstract: The present disclosure provides a page loading method, a device, and a storage medium. The method includes: preloading a preloaded resource of a first landing page into a memory cache of a first browser in response to a launch of a first application, where the first landing page is a third-party landing page; and in response to a load trigger operation on the first landing page, reading the preloaded resource of the first landing page from the memory cache through the first browser, and loading the first landing page based on the preloaded resource of the first landing page.

Abstract: Provided is an RNA vector comprising: a permuted group 1 intron/exon comprising a 5? exon, a 3? exon, and an intron, the intron comprising a 5? intron end and a 3? intron end; and at least one modified nucleotide; wherein the 3? exon is upstream of the 5? exon; wherein a portion of the intron including the 3? intron end is upstream of the 3? exon; wherein a portion of the intron including the 5? intron end is downstream of the 5? exon; and wherein the permuted group 1 intron/exon is active in the presence of the modified nucleotide. Also provided is a DNA vector and methods for expressing a target protein from a circular RNA vector.

Abstract: An apparatus configured to process, based on signaling received from a user equipment (UE), a request to export a selected embedded subscriber identity module (e-SIM) profile, the request comprising an integrated circuit card identification (ICCID) corresponding to the selected e-SIM profile and a target cryptographic token corresponding to the ICCID, determine the e-SIM profile corresponding to the ICCID is stored on the apparatus and is eligible for export, generate a transaction identification (TID) corresponding to the ICCID and a source cryptographic token corresponding to the ICCID and generate, for transmission to the UE, a source encrypted signature comprising the ICCID, the TID, the source cryptographic token and the target cryptographic token.

Abstract: A liquid crystal composition includes at least one liquid crystal compound of a general formula (I), at least one elastic constant regulator of a general formula (II), and at least one chiral compound. A light modulating device with the liquid crustal composition has at least two stable states in the absence of applied voltage, at least one state allowing incident light to pass through substantially (transparent state), and at least one state scattering incident light substantially (foggy state). The transparent state and the foggy state may be switched by means of an external electric field. The transparent state is clear and highly transmissive, while the foggy state provides privacy protection. By introducing a bimesogenic compound and adjusting the helical pitch of the liquid crystal composition system to P?3.5 ?m, the uniformity of the planar arrangement of the liquid crystal composition molecules is improved and texture defects are reduced.

Abstract: A method for protecting an electrical hybridisation system, the electrical hybridisation system including two rotary machines, each having at least one stator winding, each stator winding being associated with an AC-to-DC converter, and a distribution box for delivering, on the basis of DC voltages delivered by the AC-to-DC converters, a high DC voltage, on the one hand for local loads and on the other hand for the electrical network of an aircraft, in which method, current and voltage measurements are carried out in the distribution box, the converters and the stator windings of the rotary machines and if, once these measurements are consolidated together in a control card, the risk of fire is determined, the contactors of the distribution box and/or of the converters are selectively opened and the rotary machines are mechanically disconnected.