Abstract: Disclosed is a text sentence processing method performed by a computer device, including: acquiring sample text sentences including entity pairs and relationship labels of the entity pairs; extracting positive and negative example sentence pairs from the sample text sentences according to the relationship labels, and performing positive-negative example sampling, to obtain a training set; inputting the training set into a relationship extraction model to generate loss values; and adjusting parameters of the relationship extraction model according to the loss values, and repeating the step of extracting positive and negative example sentence pairs from the sample text sentences according to the relationship labels to perform iterative training of the relationship extraction model until a training end condition is met, to obtain an updated relationship extraction model, the relationship extraction model being configured to identify an entity relationship of an entity pair in an input text sentence.

Abstract: A silencer or muffler for reducing noise of a heat dissipation or cooling fan includes an outer tube and at least one inner tube inside the outer tube. An annular space is formed between the inner and outer tubes. An inner cavity of the inner tube forms a ventilation channel. Partition plates are installed in the annular space that partition the annular space into silencing chambers arranged along a conveying direction of airflow. The inner tube includes openings communicating the silencing chambers with the ventilation channel. The silencing chambers are disposed correspondingly to silencing frequency bands. A limited installation space in an electronic device chassis can be used to achieve sound absorption and noise reduction for a heat dissipation fan in the silencing frequency bands.

Abstract: The disclosure relates to the technical field of vehicles, and particularly provides a multi-link independent suspension for a vehicle that includes a subframe and a steering knuckle. In order to solve the problem of reduced adjustment efficiency caused by mutual restraining of linkages of an existing multi-link independent suspension when a camber angle is adjusted, the multi-link independent suspension includes a spring control arm that is configured to adjust a camber angle of a wheel center. The multi-link independent suspension also includes a front upper control arm and a rear upper control arm.

Abstract: A contactor and a control method thereof are disclosed, the contactor including: an electromagnetic component; a static contact; a movable component including a connected movable contact, a first elastic part configured to generate an elastic force supporting the movable component and a driving part configured to produce an electromagnetic driving force through a magnetic field generated by the electromagnetic component; a sensor; and a controller configured to: in response to the sensor detecting that the driving part is displaced based on the electric repulsion force generated by the current flowing through the movable contact and the static contact, control the electromagnetic component to adjust the generated magnetic field to reduce the electromagnetic driving force produced by the driving part based on the generated magnetic field in the opposite direction to the electric repulsion force, so that the movable contact is not closed with the static contact again.

Abstract: A resonant converter has a first transistor, a second transistor, a third transistor, a fourth transistor, a transformer, a resonant tank, a rectifier circuit and a current sensing circuit. The transformer comprises a primary winding and a first sampling winding at a primary side, and a secondary winding at a secondary side. The resonant tank circuit is coupled between the first switching node and the second switching node and comprises a resonant capacitor, a resonant inductor and a magnetizing inductance of the primary winding coupled in series. The rectifier circuit is coupled between the first end of the secondary winding and the second end of the secondary winding. The current sensing circuit is used to receive the first capacitor voltage sampling signal and provide a current sensing signal based on the first capacitor voltage sampling signal.

Abstract: A motion mechanism, which is installed on a base and capable of translating in a movement direction. The motion mechanism includes: a moving iron core bracket, provided with a moving iron core and including a first connection part; a moving contact bracket, provided with a moving contact and including a second connection part; a guide support mechanism, through which the motion mechanism is supported on the base to enable the motion mechanism to translate in the movement direction; the first connection part and the second connection part are connected so that the moving iron core bracket and the moving contact bracket can be pivotally connected around a pivot axis perpendicular to the movement direction and a gravity direction. A contactor including the abovementioned motion mechanism also is disclosed.

Abstract: A contactor, which includes: a housing; a plurality of stationary contact brackets, fixed to the housing, wherein each of the plurality of stationary contact brackets includes a bracket body accommodated in the housing and a wiring terminal extending out of the housing and configured to be connected with an electric wire, the wiring terminal includes a sheet-shaped terminal body and a terminal hole penetrating through a thickness of the terminal body; and an isolation sheet, arranged between adjacent wiring terminals and separates the adjacent wiring terminals. The design of the contactor according to the present disclosure can meet at least four different connection modes of different customers at the same time, thus increasing the application compatibility of the contactor and reducing the design cost and management cost.

Abstract: The present disclosure relates to an arc extinguishing system for contactor and a contactor. The arc extinguishing system includes: an arc extinguishing chamber, accommodating a plurality of arc extinguishing grids, and an extension direction of each of the plurality of arc extinguishing grids being perpendicular to an extension direction of the movable contact; an arc striking piece, electrically connected to the stationary contact and configured to extend toward the arc extinguishing chamber, so that the arc generated upon the movable contact and the stationary contact being separated moves along the arc striking piece toward the arc extinguishing chamber.

Abstract: A contactor includes: a frame; a stationary contact; a movable contact movable between a closed position and an open position, wherein, in the closed position, the movable contact and the stationary contact are connected such that the contactor is closed, and in the open position, the movable contact and the stationary contact are disconnected such that the contactor is open; and a reset mechanism including a counter force spring, the counter force spring being a torsion spring used to bias the movable contact toward the open position, wherein the torsion spring is an integral component including a body portion having a longitudinal axis, a middle leg extending from the body portion and two torsion arms positioned at two ends of the body portion, and the torsion arms are arranged at two opposite sides of the movable contact. Also provided is an electrical control cabinet including the contactor.

Abstract: A modular contactor. The modular contactor includes a driving module (1), an intermediate connection module (2), a breaking module (3), an upper application interface module (4), and a lower application interface module (5); the driving module (1) is detachably connected to a first side of the intermediate connection module (2); the breaking module (3) is detachably connected to a second side of the intermediate connection module (2); the upper application interface module (4) is detachably connected to the top of the breaking module (3) so as to be electrically connected to upper static contacts of the multiple breaking units; the lower application interface module (5) is detachably connected to the bottom of the breaking module (3) so as to be electrically connected to lower static contacts of the multiple breaking units.

Abstract: Disclosed are a novel tetrahydroisoquinoline compound, a method for preparing intermediates thereof, a pharmaceutical composition thereof and the use thereof. The tetrahydroisoquinoline compound of the present invention has a good inhibitory effect on phosphodiesterase (PDE4), and can be used in the prevention, treatment or auxiliary treatment of multiple diseases associated with the activity or expression of phosphodiesterase, especially PDE4-associated immune and inflammatory diseases, such as psoriasis and arthritis.

Abstract: A solid target system for the radionuclide preparation, including a cassette, an ejection sub-system, a laser radar positioning sub-system, a cooling sub-system and a control cabinet. The cassette includes a solid target component for the nuclide preparation and a shielding box. The ejection sub-system is configured to eject the cassette to a recovery hole after the nuclide preparation is completed. The laser radar positioning sub-system is arranged above the ejection sub-system, and is electrically connected to the control cabinet. Both sides of the cassette are each provided with the cooling sub-system for cooling down the solid target component. The control cabinet is electrically connected to a direct-current servo motor for controlling an operating state thereof.

Abstract: An accelerated life test method for a speed reducer of an industrial robot is provided. The accelerated life test method includes: setting first load stress higher than rated load stress and second load stress lower than the rated load stress; performing an accelerated life test by loading the first load stress to first speed reducer samples; calculating a service life of each of the first speed samples in the accelerated life test; performing a contrast test by loading the second load stress to second speed reducer samples; calculating a service life of each of the second speed samples in the contrast test; and calculating an acceleration coefficient, and the acceleration coefficient is equal to a ratio of the service life in the accelerated life test to the service life in the contrast test.

Abstract: An electronic device may have peripheral conductive housing structures, a display frame, a support plate, a logic board, and an antenna. The antenna may have a resonating element that includes a first slot between the logic board and a segment of the peripheral conductive housing structures, a second slot between the display frame and the segment, and optionally a third slot between the support plate and the segment. The slots may be at least partially overlapping, may have respective lengths, may be located at respective distances from a cover layer for the display, and may collectively receive radio-frequency signals in a frequency band such as the L5 GPS band. Switching circuitry and filter circuitry may be coupled to the antenna feed and/or to the antenna feed (s) of one or more adjacent antennas in the electronic device to help to isolate the antennas from each other.

Abstract: A resonant converter has a primary resonant tank circuit and a secondary resonant tank circuit. An inverter circuit converts an input DC voltage received by the resonant converter at an input voltage node to a pulsating signal that is fed to the primary resonant tank circuit to generate a resonant tank current that flows through a primary winding of a transformer. The resonant tank current induces current in a secondary winding of the transformer. The induced current is rectified by a rectifier and the rectified signal is filtered to generate an output DC voltage at an output voltage node. The secondary resonant tank circuit is disposed between the secondary winding of the transformer and the output voltage node, and a tank node of the secondary resonant tank is connected to the primary resonant tank circuit through the inverter circuit.

Abstract: An obstacle recognition method and apparatus, a computer device, and a storage medium are provided. The method comprises: acquiring point cloud data scanned by LiDAR and time-sequence pose information of a vehicle (S101); determining a spliced image of a bird's eye view according to the point cloud data, the time-sequence pose information, and a historical frame embedded image (S102); inputting the spliced image into a preset first CNN model to obtain a current frame embedded image and pixel-level information of the bird's eye view (S103); determining recognition information of at least one obstacle according to the current frame embedded image and pixel-level information (S104).

Abstract: The present invention relates to electronic device and method for wireless communication system, and storage medium. An electronic device of a terminal device side for a wireless communication system, comprising: a processing circuit configured to: receive, from a base station, configuration information indicating that one or more of a plurality of synchronization signal blocks (SSBs) corresponding to the electronic device are measured when the electronic device is in an idle or inactive state, wherein the configuration information is sent on the basis that the electronic device is in a stationary state, and the configuration information comprises at least information indicating a first threshold; and in the period during which the electronic device is in the idle or inactive state, measure only the one or more of the plurality of SSBs having received signal strength higher than the first threshold when the electronic device is in a connected state.

Abstract: A wheel cover includes a fixing unit fixed to a wheel of a vehicle, a variable unit coupled to and supported by the fixing unit and configured for being opened and closed, a first power unit configured to apply a first force acting on the variable unit, wherein the force changes depending on temperature, and a second power unit configured to apply a second force acting on the variable unit, wherein the second force changes depending on a wheel speed, wherein the variable unit is opened or closed depending on the first force generated by the first power unit and the second force generated by the second power unit.

Abstract: Devices, systems, methods, and techniques are disclosed herein for automatic testing with feature tags trained by machine learning for updates in version control systems. An example method includes deploying multiple updates in a code repository of a version control system and mapping the multiple updates using multiple feature labels. The multiple feature labels have been trained in a machine learning model to represent corresponding functional features. A processing device then identifies a subset of codes in the code repository. The subset of codes in the code repository is functionally affected by the multiple updates and is identified based on the multiple feature labels. The processing device performs a verification job on each of the subset of codes in the code repository in preparation for committing the multiple updates in the code repository.

Abstract: The application relates to a swinging device, underwater bionic propeller and use thereof. The swinging device can include a swing mechanism including a swing arm. A driving end of a steering mechanism can be in transmission connection with the swing arm so as to drive the swing arm to swing in a reciprocating manner. A reciprocating mechanism can be provided which is in transmission connection with a fixed end of a steering driving component so as to drive the swing arm to rotate in a reciprocating manner by driving the steering mechanism to move. The steering mechanism drives the swing arm independently and changes the swinging area that the reciprocating mechanism drives the swing arm to swing in a reciprocating manner.