Abstract: The disclosure discloses a battery device, a detection method thereof, a method and device for screening battery cells. The characteristic values are determined according to parameters of two peaks in the frequency-domain impedance diagram. The characteristic values may reflect the magnitude of charge transfer impedance and diffusion impedance in each battery cell, then reflect the characteristics of the interface and characteristics of solid phase particles during charging and discharging, and further reflect the health and performance of battery cells. The battery set screened in this way still have good consistency after storage and shelving, and the consistency between battery cells will not deteriorate after storage for a period of time, so that the battery device may have better performance.

Abstract: The present disclosure discloses a battery pack, including a plurality of battery modules. Each battery module includes: a battery row including a plurality of battery cells, each battery cell includes two electrodes and electrodes of all battery cells form two electrode rows arranging in the longitudinal direction; a flexible printed circuit board located between the two electrode rows; and two conductive connecting plate rows located on two sides of the flexible printed circuit board in the transverse direction respectively, each conductive connecting plate row includes a plurality of conductive connecting plates arranged in the longitudinal direction and spaced apart from each other, and each conductive connecting plate is electrically connected to the flexible printed circuit board and a corresponding electrode of a corresponding electrode row. Each battery module further includes an insulation cover covering and fixed to a top of the battery row to insulate each battery module from outside.

Abstract: The present disclosure provides a voltage controlled oscillator for flipped and complementary low noise. The voltage controlled oscillator includes a first resonant cavity, a second resonant cavity, and an associated circuit. The associated circuit is configured to connect the first resonant cavity and the second resonant cavity in series and couple the first resonant cavity and the second resonant cavity. A resonant frequency of the first resonant cavity and a resonant frequency of the second resonant cavity satisfy a first preset condition.

Abstract: The present disclosure discloses an on-chip synchronous self-repairing system based on a low-frequency reference signal. The system adopts a dual-input PLL stellate coupled structure or a dual-input PLL butterfly-shaped coupled structure, and delay of the whole loop is made to be an integral multiple of the reference signal by synchronizing the transmitted reference signal with the received reference signal, so as to ensure synchronization of local oscillation signal of each IC chip. The transmission wire based on an adjustable left-handed material is used as a delay wire to connect the dual-input PLL, thereby achieving low loss and reducing the physical distance of the delay wire. The system has the advantages of small area, low loss, strong adaptability and strict synchronization in various environments.

Abstract: The present disclosure describes techniques for diversifying recommendations by improving embedding generation of a Graph Neural Network (GNN) model. A subset of neighbors for each GNN item node may be selected on an embedding space for aggregation. The subset of neighbors may comprise diverse items and may represent an entire set of neighbors of the GNN item node. Attention weights may be assigned for a plurality of layers of the GNN model to mitigate over-smoothing of the GNN model. Loss reweighting may be performed by adjusting weight for each sample item during training the GNN model based on a category of the sample item to focus on learning of long-tail categories.

Abstract: The present disclosure discloses an on-chip synchronous self-repairing system based on a low-frequency reference signal. The system adopts a dual-input PLL stellate coupled structure or a dual-input PLL butterfly-shaped coupled structure, and delay of the whole loop is made to be an integral multiple of the reference signal by synchronizing the transmitted reference signal with the received reference signal, so as to ensure synchronization of local oscillation signal of each IC chip. The transmission wire based on an adjustable left-handed material is used as a delay wire to connect the dual-input PLL, thereby achieving low loss and reducing the physical distance of the delay wire. The system has the advantages of small area, low loss, strong adaptability and strict synchronization in various environments.

Abstract: A waist imitating device of robotic rat based on multiple-connecting-rod transmission comprises a pitch parallel connecting rod group (8) and a yaw parallel connecting rod group (2). The pitch parallel connecting rod group (8) and the yaw parallel connecting rod group (2) are respectively connected with a front joint and a back joint of a waist of a robotic rat. Under the drive of a first motor (4), crank connecting rods drive the yaw parallel connecting rod group (2) such that left-right yaw motion of the waist of the robotic rat relative to wheels and forelimbs can be achieved. Under the drive of a second motor (14), crank connecting rods drive the pitch parallel connecting rod group (8) such that upper-down pitch motion of the waist of the robotic rat relative to the wheels and the forelimbs can be achieved.

Abstract: A waist imitating device of robotic rat based on multiple-connecting-rod transmission comprises a pitch parallel connecting rod group (8) and a yaw parallel connecting rod group (2). The pitch parallel connecting rod group (8) and the yaw parallel connecting rod group (2) are respectively connected with a front joint and a back joint of a waist of a robotic rat. Under the drive of a first motor (4), crank connecting rods drive the yaw parallel connecting rod group (2) such that left-right yaw motion of the waist of the robotic rat relative to wheels and forelimbs can be achieved. Under the drive of a second motor (14), crank connecting rods drive the pitch parallel connecting rod group (8) such that upper-down pitch motion of the waist of the robotic rat relative to the wheels and the forelimbs can be achieved.

Abstract: The present disclosure relates to a multimedia network data processing system, comprising: a head-end switch, which transmits multimedia network data of the data that is sent from a server to a terminal device to a head-end network processor, wherein the multimedia network data is multimedia network data based on the TCP/HTTP protocol; a head-end network processor, which encapsulates the multimedia network data to form a UDP packet and sends the UDP packet to a unidirectional broadcasting optical fiber network; and a data processing module, which receives the UDP packet from the unidirectional broadcasting optical fiber network and decapsulates the UDP packet to obtain the multimedia network data based on the TCP/HTTP protocol for the terminal device to play. A video-on-demand service based on the TCP/HTTP protocol can be realized on the basis of the existing network systems in which the unidirectional channel and the bidirectional channel are separated.

Abstract: The present disclosure relates to a multimedia network data processing system, comprising: a head-end switch, which transmits multimedia network data of the data that is sent from a server to a terminal device to a head-end network processor, wherein the multimedia network data is multimedia network data based on the TCP/HTTP protocol; a head-end network processor, which encapsulates the multimedia network data to form a UDP packet and sends the UDP packet to a unidirectional broadcasting optical fiber network; and a data processing module, which receives the UDP packet from the unidirectional broadcasting optical fiber network and decapsulates the UDP packet to obtain the multimedia network data based on the TCP/HTTP protocol for the terminal device to play. A video-on-demand service based on the TCP/HTTP protocol can be realized on the basis of the existing network systems in which the unidirectional channel and the bidirectional channel are separated.

Abstract: Multiple machine learning models can be jointly trained in parallel. An example process for jointly training multiple machine learning models includes providing a set of machine learning models that are to learn a respective task, the set of machine learning models including a first machine learning model and a second machine learning model. The process can initiate training of the first machine learning model to learn a task using training data. During the training of the first machine learning model, information can be passed between the first machine learning model and the second machine learning model. Such passing of information (or “transfer of knowledge”) between the machine learning models can be accomplished via the formulation, and optimization, of an objective function that comprises model parameters that are based on the multiple machine learning models in the set.

Abstract: A combustion gas piston type movable guiding tube netting device includes a capture net (8), a traction head (6), a guiding tube (7), an igniter (3), a main gunpowder (5), a combustion gas generator (1) and a piston (2). The piston and the main gunpowder are placed in the combustion gas generator. The top of the piston contacts a triangular lug on the base of the guiding tube. The traction head is placed in the guiding tube, and another end of the traction head is tied on one corner of the capture net. When operating, the main gunpowder is ignited by the igniter, the resulting combustion gas pushes the piston to move, the piston pushes the guiding tube to move, and the combustion gas comes into the guiding tube and pushes the traction head to burst out the guiding tube, and the traction head drives the capture net to open. The combustion gas piston type movable guiding tube netting device has a quick expansion speed, and the area of the expansive capture net is big.

Abstract: A pollution-free liquid balancing device comprises a sealing bag (1), a front cover (2), a rear cover (3) and liquid balancing matter (4), wherein the sealing bag (1), the front cover (2) and the rear cover (3) are all plastic material. The sealing bag (1) is filled with the liquid balancing matter (4) inside, and plastically sealed under high temperature at both ends. The diameters of the front cover (2) and the rear cover (3) are matched with the inner diameter of a launch barrel (5), and the sealing bag (1) is provided between the front cover (2) and the rear cover (3). In an ordinary transportation state, the liquid balancing matter (4) is well sealed in the sealing bag (1), and a missile is launched forward by the propulsion of powder during launch, the sealing bag (1), the front cover (2) and the rear cover (3) crack instantaneously, and the liquid balancing matter (4) is ejected backward outside the barrel at high speed.

Abstract: A pollution-free liquid balancing device comprises a sealing bag (1), a front cover (2), a rear cover (3) and liquid balancing matter (4), wherein the sealing bag (1), the front cover (2) and the rear cover (3) are all plastic material. The sealing bag (1) is filled with the liquid balancing matter (4) inside, and plastically sealed under high temperature at both ends. The diameters of the front cover (2) and the rear cover (3) are matched with the inner diameter of a launch barrel (5), and the sealing bag (1) is provided between the front cover (2) and the rear cover (3). In an ordinary transportation state, the liquid balancing matter (4) is well sealed in the sealing bag (1), and a missile is launched forward by the propulsion of powder during launch, the sealing bag (1), the front cover (2) and the rear cover (3) crack instantaneously, and the liquid balancing matter (4) is ejected backward outside the barrel at high speed.

Abstract: A combustion gas piston type movable guiding tube netting device includes a capture net (8), a traction head (6), a guiding tube (7), an igniter (3), a main gunpowder (5), a combustion gas generator (1) and a piston (2). The piston and the main gunpowder are placed in the combustion gas generator. The top of the piston contacts a triangular lug on the base of the guiding tube. The traction head is placed in the guiding tube, and another end of the traction head is tied on one corner of the capture net. When operating, the main gunpowder is ignited by the igniter, the resulting combustion gas pushes the piston to move, the piston pushes the guiding tube to move, and the combustion gas comes into the guiding tube and pushes the traction head to burst out the guiding tube, and the traction head drives the capture net to open. The combustion gas piston type movable guiding tube netting device has a quick expansion speed, and the area of the expansive capture net is big.

Abstract: Systems and methods based on firing table fitting allow interception of a small low-altitude low-velocity target. A system includes: a target detecting system, a directing control system, a launch control system, an interception execution system, a communication bus a, a communication bus b and a communication bus c. Firing table data under a standard working condition and fitting parameters under different working conditions are pre-stored in the system. Based on target flight data and environment condition parameters, a lead aiming point is predicted, a time sequence of each stage of a fight flow is controlled, and firing data are output to execute an interception by the launch control system. An interception operation is simplified, a ground control of a non-controlled bomb fight flow is realized, a single shot success probability of an interception system is increased, and an interception cost is reduced.

Abstract: Systems and methods allow for intercepting a small, low-altitude and low-velocity target. A system includes a detecting apparatus, a directing control apparatus, an aiming control apparatus, a launch control apparatus, a launching device, and an intercepting device. A method includes: searching and tracking a target by the detecting apparatus in a networking mode, or by the aiming control apparatus in a single-soldier mode; sending target information to the launch control apparatus; performing a trajectory calculation by the launch control apparatus; and launching the intercepting device by the launching device to intercept the target. A low-cost system with a short response time can thus be realized. The target falls with the net at a low velocity under a parachute, and this is desirable in a city environment.

Abstract: A hydraulic mount and a filling device for the hydraulic mount are provided. The hydraulic mount (1) comprises a casing (2) and a support body (6, 7) arranged in an upper part of the casing (2), wherein, the casing (2) and the support body (6, 7) define a chamber (3), and the chamber (3) receives liquid and is divided by a partition into an upper chamber and a lower chamber. An orifice is formed in the partition, so that the upper chamber and the lower chamber are communicated with each other. A through hole (4) for communicating the chamber (3) with the exterior is formed in the support body (6, 7), and a sealing member (5) is arranged in the through hole (4). The filling device for the hydraulic mount (1) comprises a liquid tank (8) and a vacuum extractor (9), wherein, either the liquid tank (8) or the vacuum extractor (9) is connected to the through hole (4) in the hydraulic mount (1) through a pipe in a sealed manner.

Abstract: A hydraulic mount and a filling device for the hydraulic mount are provided. The hydraulic mount (1) comprises a casing (2) and a support body (6, 7) arranged in an upper part of the casing (2), wherein, the casing (2) and the support body (6, 7) define a chamber (3), and the chamber (3) receives liquid and is divided by a partition into an upper chamber and a lower chamber. An orifice is formed in the partition, so that the upper chamber and the lower chamber are communicated with each other. A through hole (4) for communicating the chamber (3) with the exterior is formed in the support body (6, 7), and a sealing member (5) is arranged in the through hole (4). The filling device for the hydraulic mount (1) comprises a liquid tank (8) and a vacuum extractor (9), wherein, either the liquid tank (8) or the vacuum extractor (9) is connected to the through hole (4) in the hydraulic mount (1) through a pipe in a sealed manner.

Abstract: The present invention provides a process for forming a contact member cable. The cable is a longer version of a contact member and can then be cut into shorter, individual contact members, to meet the particular requirements for a specific connector application. The contact members can be used as the conductive elements for a family of land grid array connectors that provide, among other things, a low profile, uniform electrical and mechanical performance, and reworkability if a contact member is damaged. The connectors are intended to interconnect electrical circuit members such as printed circuit boards, circuit modules, or the like. Such circuit members may be used in information handling system (computer) or telecommunications environments.