Abstract: This application provides a battery cell, a battery, and an electric apparatus. The battery cell includes a housing, an electrode terminal, and a current collector. The housing has a first wall and an accommodating cavity. The first wall has a first through hole enabling communication between the accommodating cavity and the outside of the housing. The electrode terminal includes a base and a connection portion connected to the base. The base is located on a side of the first wall back away from the accommodating cavity. At least part of the connection portion is located in the first through hole. The current collector includes a body portion and a protruding portion connected to the body portion. The protruding portion protrudes towards the first wall, and the protruding portion is configured to be connected to the connection portion.

Abstract: A catalyst contains a metal oxide, and a molecular sieve, in a crystal form, having a topological pore structure. The metal oxide is centrally distributed on the surface of the molecular sieve. Grains of the molecular sieve are exposed to at least three families of crystal planes. The family of crystal plane with the largest pore size in topology is occupied by the metal oxide by no more than 30%, preferably no more than 20%, or no more than 10%.

Abstract: a battery cell includes an electrode assembly, a first electrode terminal, and a second electrode terminal. The electrode assembly includes a body portion, where a first tab, a second tab, and an auxiliary tab are led out of the body portion. The first tab and the auxiliary tab are both electrically connected to the first electrode terminal, and the second tab is electrically connected to the second electrode terminal. The first tab and the auxiliary tab are both electrically connected to the first electrode terminal to increase a current flow area of the tab electrically connected to the first electrode terminal.

Abstract: The present invention discloses a five-axis vertical machining system with automatic loading and unloading, including a feeding mechanism, a loading mechanism, and a numerical control machine tool. The feeding mechanism is arranged in front of a ram assembly, and the feeding mechanism drives a raw material to move along an X axis and/or a Y axis of the numerical control machine tool; the loading mechanism is fixed on the ram assembly; and the loading mechanism moves along a Z axis of the numerical control machine tool to drive the raw material onto a cradle assembly of the numerical control machine tool. The present invention realizes an automatic loading and unloading function by setting a feeding mechanism capable of automatic feeding and a loading mechanism with automatic loading to cooperate with each other, thereby improving the working efficiency and saving manpower.

Abstract: Embodiments of this application provide an end cover assembly, a battery cell, a battery, and an electric apparatus, where the end cover assembly includes an end cover and a pressure relief component, the end cover is provided with a recessed groove section recessed toward the inside of the battery cell, the pressure relief component is disposed within the groove section, and a top surface of the pressure relief component, facing away from the inside of the battery cell, has a distance to the groove bottom of the groove section that is less than or equal to the depth of the groove section. Thus, the pressure relief component does not protrude from the top surface of the end cover, thereby not occupying additional space in the height direction of the battery cell.

Abstract: A method of preparing a polyamide composite membrane using a vapor-assisted electrostatic spray is provided which relates to the field of preparation of polyamide composite membranes and comprises: step S1, adjusting a relative humidity of a surrounding environment of an electrostatic spray equipment to 80% to 90%; step S2, taking an amine monomer solution and an acyl chloride monomer solution as raw materials and placing the two raw materials in a spray system of the electrostatic spray equipment; step S3, wrapping a polymer ultrafiltration membrane on a receiving roller of the electrostatic spray equipment and setting electrostatic spray process parameters for electrostatic spraying; step S4, taking down an electrostatically-sprayed composite polymer membrane and placing the composite polymer membrane in an environment of 50 to 80° C. for heat treatment of 5 to 20 minutes, to prepare a finished polyamide composite membrane.

Abstract: The present invention relates to a nonmetallic unbonded flexible riser for deep-sea mining and a manufacturing method thereof, wherein the riser includes a lining layer, an internal pressure resistant reinforcing layer, a first anti-wear layer, a first compensation reinforcing layer, a second anti-wear layer, a second compensation reinforcing layer, a third anti-wear layer, a framework layer, a isolation layer, a first tensile reinforcing layer, a fourth anti-wear layer, a second tensile reinforcing layer and an outer coating layer which are sequentially arranged from inside to outside, wherein unbonded connection between adjacent layers is adopted. The present invention may ensure the continuous transportation of the mineral and the seawater inside the flexible mixed transportation pipe, adapt to the severe marine environment and loading condition, and ensure the safety of mining work.

Abstract: Provided are battery cell, battery, and electric device. The battery cell includes a casing and a pressure relief mechanism. The casing is provided therein with an accommodating space configured to accommodate an electrode assembly, wherein the casing is provided with a mounting hole in communication with the accommodating space, and the mounting hole is provided with a first hole wall surface extending along a circumferential direction of the mounting hole. The pressure relief mechanism is arranged in the mounting hole, wherein an outer peripheral surface of the pressure relief mechanism is welded to the first hole wall surface. The casing is provided with a first annular groove, and the first annular groove surrounds an outer side of the first hole wall surface; and/or the pressure relief mechanism is provided with a second annular groove, and the first hole wall surface surrounds an outer side of the second annular groove.

Abstract: A battery cell includes a housing and a barrier member. The housing has an inner cavity, the housing has a first wall, and a weak portion is provided on the first wall. The barrier member is arranged in the inner cavity of the housing, and the barrier member is provided on at least part of the periphery of the weak portion.

Abstract: This disclosure generally relates to power generation methods and systems based on gas turbine engines, and particularly to mobile and adaptive power generation systems and methods based on gas turbine engine for supplying mechanical and/or electrical power for fracturing operations at an oil wellsite. Various systems, platforms, components, devices, and methods are provided for flexibly and adaptively configure one of more gas turbines, hydraulic pumps, and electric generators to support both fracturing and electric demands at a well site. The disclosed implementations enable and facilitate a mobile, adaptive, and reconfigurable power system to provide both mechanical and electric power for hydraulic fracturing operation.

Abstract: A measurement configuration method includes a network device that determines when a bandwidth part (BWP) occupied by a terminal device is switched from a first BWP to a second BWP. The network device sends first information to the terminal device, indicating whether configuration information of a first measurement window takes effect when the terminal device occupies the second BWP and indicating whether the first measurement window is configured for the first BWP.

Abstract: Embodiments of this application disclose a communication method and apparatus, and relate to the field of communication technologies. A first access network node determines to deactivate a secondary cell group SCG or activate the SCG; and the first access network node sends first indication information to a second base station, where the first indication information indicates the second base station to send an SCG deactivation command or an SCG activation command to a terminal, where the first access network node belongs to a first base station, the first base station is a master node or a secondary node of the terminal during dual connectivity communication, and the SCG is one or more cells managed by the secondary node.

Abstract: A method of determining interaction information, an electronic device and a storage medium are provided, which relates to a field of artificial intelligence technology, in particular to a large model, a generative model, an NLP, an intelligent search and other fields. An implementation is to determine a plurality of questioning dimensions according to query information of a subject and historical query information, where each questioning dimension includes a dimension name and a plurality of options; determine a target questioning dimension from the plurality of questioning dimensions according to evaluation values of the plurality of questioning dimensions and whether semantic information of the plurality of questioning dimensions are consistent with semantic information of a query result associated with the query information; and determine the interaction information according to the dimension name and the plurality of options in the target questioning dimension.

Abstract: This application relates to a communication method and device. A remote terminal device receives a first data packet from a relay terminal device by using an SRB1. The first data packet includes a first message and an SRAP header. The remote terminal device removes the SRAP header via an SRAP entity to obtain configuration information. The SRAP entity is determined before the SRAP header is removed. The remote terminal device configures the SRAP entity based on the configuration information. The remote terminal device may predetermine the SRAP entity.

Abstract: A detection method and system for a LiDAR and a LiDAR are provided. The detection method includes: performing a reflection receiving operation to enable a detector of a channel to be detected to receive multiple echo signals reflected by a target plate, to receive multiple reflectivity measurement values of the channel to be detected for the target plate determined by the LiDAR; and determining a reflectivity parameter of the channel to be detected based on a result of the reflection receiving operation, where the reflectivity parameter of the channel to be detected includes: at least one of reflectivity accuracy of the channel to be detected or reflectivity precision of the channel to be detected. The detection method can determine the consistency of the reflectivity measurement of respective channels of the LiDAR and the reflectivity measurement accuracy of an entire LiDAR system.

Abstract: Embodiments of the present application provide a battery cell, a battery, and an electrical device. The battery cell includes a shell and a positive electrode plate. The melting point of the shell is N. The positive electrode plate is accommodated within the shell and includes a positive electrode active material, which includes lithium nickel cobalt manganese oxide. A weight of a nickel element in the lithium nickel cobalt manganese oxide is G1, and the sum of weights of a nickel element, a cobalt element, and a manganese element is G2. A value of G1/G2 is M. M and N meet: 0.1?M?0.65, N?(50M+500)° C.; or M and N meet: 0.65<M<1, N?(950M+500)° C. The present application reduces the risk of the melting of the shell during the thermal runaway of the battery cell and improve the safety.

Abstract: Provided are an extendable seat frame and a furniture thereof. The extendable seat frame includes: a fixed base; a seat frame main body, configured to move relatively above the fixed base; and an extension apparatus, configured to be rotatably connected to the fixed base and rotatably connected to the seat frame main body so as to enable the extendable seat frame to switch between a retracted state and an extended state. Further, the extension apparatus includes at least an extension part, one end of the extension part is rotatably connected to an end of the seat frame main body that is away from an extending direction, and the extension part is configured to drive the extension part to flip in response to the seat frame main body moving towards the extending direction.

Abstract: A computer-implemented method for optimizing neural networks by detecting critical and non-critical nodes is disclosed. The method involves obtaining a neural network comprising a plurality of nodes and their weighted connections. Critical nodes, which have a greater correlation to the network's output than non-critical nodes, are identified through a two-step detection process. The first critical node detection process identifies critical nodes based on weighted direct connections among the nodes. The second critical node detection process identifies critical nodes based on unweighted direct and indirect connections. The configuration of the neural network is then adjusted based on the identified critical and non-critical nodes to improve efficiency or reduce size.

Abstract: A clock architecture supporting a PCIE clock, including a controller, a GPU, a PCIE switch, a FPGA, a first clock generator, a second clock generator, a first clock fan-out device and a second clock fan-out device; the first clock generator is configured to generate a 100 MHz homologous clock signal; the second clock generator is configured to generate a 100 MHz non-homologous clock signal; the FPGA is connected to the PCIE switch and the GPU, and configured to read clock architecture modes supported by the PCIE switch and the GPU, acquire corresponding 100 MHz clock signals according to the clock architecture modes, and fan out the acquired 100 MHz clock signals to the PCIE switch and the GPU to be used, the clock architecture modes are a homologous mode and a non-homologous mode.

Abstract: An accelerated loading road-testing system includes a plurality of loading mechanisms that are sequentially arranged along a first direction. The loading mechanism includes a supporting frame, a sliding assembly, and a loading assembly. The supporting frame includes a horizontal supporting beam disposed along a second direction. The sliding assembly is slidable on the horizontal supporting beam along the second direction. The loading assembly includes a telescopic cylinder and a loading head.