Abstract: A current collector, a battery cover plate, and a battery structure are provided. The current collector includes a first connection portion and a second connection portion. The first connection portion is connected to an electrode post holder, and the first connection portion and the second connection portion are connected through a bending-resistant portion. The battery cover plate includes the above current collector, an electrode post, and a top cover plate. The electrode post body penetrates the top cover plate to be connected to a terminal. The terminal and the current collector are disposed on opposite sides of the top cover plate, and the first connection portion of the current collector is connected to the electrode post.

Abstract: A method for repairing an ultra-thin structure by additive manufacturing by removing a damaged region of an ultra-thin structure by machining; acquiring a three-dimensional model of a region to be repaired; processing the three-dimensional model; constructing a powder carrying device on the periphery of the bottom of the region to be repaired, and allowing powder in the powder carrying device to be filled until flush with or tangent to the surface of the bottom of the region; melting, sintering or curing the powder around the outer contour of the ultra-thin structure by a high-energy beam or an auxiliary heating device, and combining the powder with the outer contour of the ultra-thin structure to form an outer contour thickened structure so as to form a flexible fixture; and repairing the region to be repaired by additive manufacturing technology according to a planned path obtained from the model processing.

Abstract: Disclosed is a battery, including a shell assembly, a jellyroll, and a support bar. The shell assembly defines a receiving cavity. The jellyroll is received in the receiving cavity. The support bar is disposed at a middle portion of the jellyroll. Two ends of the support bar protrude to an outside of the jellyroll and abuts against two opposite inner walls of the shell assembly. Positions of the shell assembly abutted by the support bar are recessed to form positioning slots. The two ends of the support bar are inserted into the positioning slots. The shell assembly includes a shell and a cap set connected to the shell. The shell defines an opening, the cap set covers and seals the opening. At least one end of the support bar abuts against the cap set.

Abstract: An optical communication device, an optical communication system, and a method for establishing a communication connection are provided, relating to communications technology. In the optical communication device, the first driving circuit can control, based on the generated first target plaintext, the optical signal transmitting circuit to transmit the first optical signal, and control, based on the generated first key, the optical signal transmitting circuit to transmit the second optical signal. That is, an optical communication device that detects the optical signals can establish, based on the optical signals, a communication connection with the optical communication device that transmits the optical signals.

Abstract: Disclosed are a method, device, and system for monitoring a photovoltaic power station. The device for monitoring the photovoltaic power station may display prompt information with respect to a first photovoltaic device on a display of the device in response to determining, based on the operation data of the first photovoltaic device, that the first photovoltaic device operates abnormally. Thus, a monitoring engineer may judge whether the first photovoltaic device is faulty in time based on the prompt information, facilitating the guide of subsequent operation and maintenance according to the operation data of the photovoltaic device, which not only is higher in flexibility but also ensures the efficiency of fault detection.

Abstract: This application provides a narrowband interference isolation method and a communication apparatus. An example method includes: determining a parameter of a narrowband interference signal; determining a coefficient of a first filter based on the parameter of the narrowband interference signal, wherein the first filter is located at a receive end of a master communication device, and the coefficient of the first filter is for filtering out the narrowband interference signal; and sending the parameter of the narrowband interference signal or the coefficient of the first filter to M slave communication devices using an Ethernet operation, administration, and maintenance (OAM) frame, wherein the master communication device is connected to the M slave communication devices, M?1, and M is an integer.

Abstract: Provide is a FIFO memory system. The FIFO memory system includes: a FIFO memory; a read clock frequency circuit, configured to provide at least two clock signals, wherein the at least two clock signals include a first clock signal and a second clock signal, a frequency of the first clock signal being greater than a frequency of the second clock signal; and a controller, configured to determine a data volume in the FIFO memory, control the read clock frequency circuit to output the first clock signal in a case that the data volume in the FIFO memory is in a first range, or control the read clock frequency circuit to output the second clock signal in a case that the data volume in the FIFO memory is in a second range, the lower limit of the first range being not less than an upper limit of the second range.

Abstract: A battery and a battery module are provided. The battery includes a housing, a cell, and a current collector plate. A holding chamber is defined in the housing and a pressure relief valve is arranged on the housing; the cell is arranged in the holding chamber; the current collector plate includes a first side and a second side disposed opposite each other; the first side defines a first recess, and the first recess is spaced from the end surface of the cell; the second side defines a second recess, and the pressure relief valve is disposed directly opposite to the second recess; an edge of the current collector plate is spaced from a wall of the holding chamber to define a connection channel, and the first recess and the second recess are connected through the connection channel.

Abstract: The present disclosure relates to light guides and near-eye display apparatuses. One example light guide includes a light guide plate and a two-dimensional grating that is disposed on a surface of the light guide plate. The two-dimensional grating includes a plurality of grating units arranged in a planar shape, the grating units are arranged at an interval of a first distance along a first direction and at an interval of a second distance along a second direction, and the first direction intersects with the second direction. The two-dimensional grating includes a light egress area and a light ingress area that are arranged along a third direction, and a fourth direction is perpendicular to the third direction.

Abstract: According to an aspect of this disclosure, a circuit includes a voltage source and an output load, first and second resonant modules disposed between the voltage source and the output load, and first and second transformers. The circuit is further arranged such that the first transformer is disposed between the first resonant module and the output load, and the second transformer is disposed between the second resonant module and the output load. The circuit also includes a plurality of half-bridges coupled between the first and second resonant modules and the voltage source. The circuit further includes a voltage divider disposed between the voltage source and the plurality of half-bridges.

Abstract: Methods are provided for modulating MRGPR X2 generally, or for treating a MRGPR X2 or a MRGPR X2 ortholog dependent condition, more specifically, by contacting the MRGPR X2 or the MRGPR X2 ortholog by administering to a subject in need thereof, respectively, an effective amount of a compound having structure (I): or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein W, Z, R1, R2, R3, R4, R5, R6 and Rx are as defined herein. Pharmaceutical compositions containing such compounds, as well as the compounds themselves, are also provided.

Abstract: An intrusion response system (IRS) can include a knowledge-based intrusion response (IR) component configured to use knowledge of prior responses to prior behavior of at least one computer system to determine a first response to behavior of a target computer system; a prediction-based IR component configured to use at least one trained machine learning (ML) model of behavior of the target computer system to predict a second response to the behavior of the target computer system; and a response component configured to determine an output response to the behavior of the target computer system based on at least one of the first response and the second response.

Abstract: An outdoor heat preservation dining stove includes a base and a plate. The top of the base is recessed inwardly to form in turn a holding cavity and a water storage cavity which are connected, wherein the water storage cavity is used for storing hot water, and the plate is placed in the holding cavity with its bottom contacting the hot water in the water storage cavity. The inner side of the base is provided with an overflow groove, located at the interface between the holding cavity and the water storage cavity, to receive the hot water overflowing from the water storage cavity. The heat preservation dining stove has the advantages of easy operation and maintenance, simple manufacturing process, preventing the food pan from floating and improving the heat preservation effect, convenient to carry and not affect the taste of food.

Abstract: Provided is a battery including a case and a cap plate. The case is a cylindrical groove structure, a top end face, facing towards the case, of the cap plate is provided with an annular protrusion, the annular protrusion has a central axis coinciding with the central axis of the cap plate, an edge of the top end face of the cap plate is provided with a first welding platform face, the first welding platform face is arranged circumferentially around the annular protrusion, and an outer sidewall of the annular protrusion and the first welding platform face constitute a stepped face. The annular protrusion enters the interior of the case via an annular bottom end face of the case, and the annular bottom end face of the case is in contact with the first welding platform face and connected to the first welding platform face by laser welding.

Abstract: The present disclosure provides a hash algorithm circuit, a hash algorithm method, and an electronic device. The hash algorithm circuit is used to reduce fixed-length parallel data, and the reduced identifier can be used as an index reference, an identifier ID, an address extension bit, information summary, and so on. The hash algorithm circuit has the characteristics of low power consumption, low cost, etc., and can be integrated in a digital circuit.

Abstract: A clock spread spectrum circuit, an electronic equipment, and a clock spread spectrum method are disclosed. The clock spread spectrum circuit (10) includes a control circuit (11) and a signal generation circuit (12). The control circuit (11) is configured to generate a frequency control word according to a modulation parameter, and the frequency control word changes discretely with time; and the signal generation circuit (12) is configured to receive the frequency control word and generate and output a spread spectrum output signal that is spectrum-spread according to the frequency control word, and the spread spectrum output signal corresponds to the frequency control word.

Abstract: An integrated circuit is provided. The integrated circuit includes: a clock source configured to: generate a clock signal of the integrated circuit; at least two functional circuits; and at least two clock generators corresponding to the functional circuits and configured to: determine initial phases of the corresponding functional circuits, and generate clock signals of the functional circuits based on the clock signal of the integrated circuit and the initial phases, so as to keep the clock signals of all the functional circuits synchronized, wherein the initial phases are determined based on transmission distances, over which the clock signal of the integrated circuit is transmitted from the clock source to the functional circuits, and loads of the functional circuits.

Abstract: Methods are provided for modulating MRGPRX2 generally, or for treating a MRGPRX2 or a MRGPRX2 ortholog dependent condition, more specifically, by contacting the MRGPRX2 or the MRGPRX2 ortholog by administering to a subject in need thereof, respectively, an effective amount of a compound having structure (I): or a pharmaceutically acceptable salt, isomer, hydrate, solvate or isotope thereof, wherein W, Z, R1, R2, R3, R4, R5, R6 and Rx are as defined herein. Pharmaceutical compositions containing such compounds, as well as the compounds themselves, are also provided.

Abstract: An approach is provided for providing a map matcher tolerant to wrong map features. The approach involves, for instance, finding a segment of a probe trajectory containing a plurality of low-speed probe points. The approach also involves forming a line between a first and a last probe point of the segment. The approach further involves calculating a distance from each probe point of the segment to the line. The approach further involves splitting the segment based on comparing the distance to a threshold at a turning point of the segment. The approach further involves creating a new probe trajectory based on a plurality of high-speed probe points in the probe trajectory and the turning point. The approach further involves estimating a heading of the turning point of the segment based on the new trajectory, and then performing a feasibility check between two consecutive probe points of the new trajectory.