Abstract: The present invention relates to the technical field of power generation of power systems, in particular to an offshore integrated power supply system based on clean energy. The integrated power supply system comprises a power generation unit for providing energy, an energy storage unit for storing energy, a load unit for consuming energy, an energy management system, and a fuel cell, wherein the power generation unit comprises a photovoltaic power generation system, a wind power generation system, and a tidal power generation system; the energy storage unit comprises hydrogen storage and a battery pack; and the energy management system connects the power generation unit, the load unit, and the energy storage unit, and allocates the surplus energy from the power generation unit to the hydrogen storage and the battery pack after satisfying the load unit.

Abstract: The present invention provides an electric power material distribution and allocation method based on an optimized branch and bound method, including: sorting the distribution of each batch of electric power materials to obtain a material set R; screening available vehicle data to obtain a vehicle deadweight set W and a vehicle unique identification set C; determining whether available vehicles meet requirements; and using an optimized queued branch and bound method to obtain an optimal distribution and allocation scheme. According to the present invention, scientific scheme support is provided for the distribution and allocation of the electric power materials, the scientificity of the distribution of power grid materials is improved, the influence of human factors is reduced, the utilization rate of distribution vehicles is increased, the distribution cost of the materials is reduced, and the economic benefit is improved.

Abstract: An adjustable antenna array and an electronic apparatus are provided. The adjustable antenna array includes: a first substrate and a second substrate opposite to each other, and antenna sub-arrays in an array. Each of at least some antenna sub-arrays includes a phase shifter, a power division feeding network, and a plurality of radiating units. The phase shifter and the power division feeding network are between the first substrate and the second substrate. At least some radiating units are connected to the phase shifter through the power division feeding network. Antenna patterns corresponding to the plurality of radiating units at least include patterns on a side of the second substrate away from the first substrate. An area of an orthographic projection of the power division feeding network on the first substrate is smaller than an area of an orthographic projection of the phase shifter on the first substrate.

Abstract: A method of processing point cloud information includes converting points in a point cloud obtained from a lidar sensor into a voxel grid, generating, from the voxel grid, sparse voxel features by applying a multi-layer perceptron and one or more max pooling layers that reduce dimension of input data; applying a cascade of an encoder that performs a N-stage sparse-to-dense feature operation, a global context pooling (GCP) module, and an M-stage decoder that performs a dense-to-sparse feature generation operation. The GCP module bridges an output of a last stage of the N-stages with an input of a first stage of the M-stages, where N and M are positive integers. The GCP module comprises a multi-scale feature extractor; and performing one or more perception operations on an output of the M-stage decoder and/or an output of the GCP module.

Abstract: Disclosed are a battery charging method, a battery charging device, and a battery charging apparatus. The battery charging method, comprising: determining a direct current resistance (DCR) curve of a rechargeable battery in response to a charging instruction for the rechargeable battery; obtaining a real-time impedance of the rechargeable battery, and determining an impedance interval in the DCR curve corresponding to the real-time impedance; and determining a current charging strategy for the rechargeable battery according to the impedance interval corresponding to the real-time impedance, and charging the rechargeable battery by using the current charging strategy.

Abstract: An anti-corrosive coating and a preparation method therefor are provided. The method includes the following steps: (1) dispersing graphite and a modifier in water to prepare a pretreated graphite dispersion; (2) stripping and modifying the pretreated graphite dispersion obtained in step (1) to prepare a modified graphene dispersion; and (3a) mixing the modified graphene dispersion obtained in the step (2) with epoxy resin and a cationic photoinitiator, standing, carry out phase splitting, removing a water phase, further deeply removing water to obtain a graphene/epoxy resin mixture, and curing the obtained mixture to obtain the anti-corrosive coating. By means of a phase transfer method, the application of a modified graphene aqueous dispersion in resin can be realized without drying graphene first, so that uniform dispersion of modified graphene in epoxy resin can be ensured, and additionally, stacking of the modified graphene in the drying process can be avoided.

Abstract: The present disclosure provides a radio frequency apparatus, an antenna and an electronic device, and belongs to the field of communication technology. The radio frequency apparatus includes first and second dielectric substrates opposite to each other, first and second phase shifting structures between the first and second dielectric substrates; wherein the radio frequency apparatus further includes a first connection electrode and a second connection electrode; the first phase shifting structure and the second phase shifting structure each have a first end and a second end, the first ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the first connection electrode; the second ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the second connection electrode, to form a ring circuit structure.

Abstract: An antisense oligonucleotide for regulating BCL2L12 expression, and a method and drug for treating BCL2L12-related diseases.

Abstract: Various embodiments include methods for improving navigation by a processor of a robotic device equipped with an image sensor and an optical flow sensor. The robotic device may be configured to capture or receive two image frames from the image sensor, generate a homograph computation based on the image frames, receive optical flow sensor data from an optical flow sensor, and determine a scale estimation value based on the homograph computation and the optical flow sensor data. The robotic device may determine the robotic device pose (or the pose of the image sensor) based on the scale estimation value.

Abstract: A sensor configuration method, an apparatus, computer equipment and a storage medium are disclosed. The method includes acquiring connection configuration information generated based on user input, querying for a target sensor driver matched with a target sensor represented by the sensor identifier in a device driver set, calling a target communication port driver matched with the target communication port represented by the communication port identifier and establishing communications with the target sensor by the target sensor driver and the target communication port driver. The connection configuration information includes a sensor identifier and a communication port identifier. The device driver set is pre-stored with a number of sensor drivers corresponding to a number of sensors.

Abstract: A method, device, computer equipment and storage medium for GNSS time synchronization are disclosed. The method includes: receiving data packet of NMEA protocol, reading a valid UTC time from data packet of NMEA protocol, and storing the read valid UTC time in a time synchronization controller; receiving PPS signal, capturing a local time output by local clock when PPS signal is generated, and storing the local time in the time synchronization controller; reading a last local time stored before the current local time and reading the stored latest UTC time as a UTC time corresponding to the last local time when the time synchronization controller receives the current local time; and determining, by the time synchronization controller, a local time correction amount according to the last local time and the UTC time corresponding to the last local time, and correcting the local clock according to the local time correction amount.

Abstract: The present invention provides a mechanical prosthetic limb, which relates to the technical field of medical devices. The mechanical prosthetic limb includes a prosthetic limb shank, a fixed component for connecting the prosthetic limb shank with a human body, a power-driven first drive mechanism that is installed on the prosthetic limb shank, and a prosthetic limb sole that is connected to the bottom of the prosthetic limb shank; the fixed component is rotationally connected with the prosthetic limb shank through the first drive mechanism; and the prosthetic limb shank is rotationally connected with the prosthetic limb sole through the first drive mechanism. It can relieve the burdens of the disabled in the automatic advance way, thereby improving convenience.

Abstract: A sensor configuration method, an apparatus, computer equipment and a storage medium are disclosed. The method includes acquiring connection configuration information generated based on user input, querying for a target sensor driver matched with a target sensor represented by the sensor identifier in a device driver set, calling a target communication port driver matched with the target communication port represented by the communication port identifier and establishing communications with the target sensor by the target sensor driver and the target communication port driver. The connection configuration information includes a sensor identifier and a communication port identifier. The device driver set is pre-stored with a number of sensor drivers corresponding to a number of sensors.

Abstract: Various embodiments include methods for improving navigation by a processor of a robotic device equipped with an image sensor and an optical flow sensor. The robotic device may be configured to capture or receive two image frames from the image sensor, generate a homograph computation based on the image frames, receive optical flow sensor data from an optical flow sensor, and determine a scale estimation value based on the homograph computation and the optical flow sensor data. The robotic device may determine the robotic device pose (or the pose of the image sensor) based on the scale estimation value.