Abstract: A motor controller includes: a plurality of first power modules, a second power module, a first group of connecting interfaces, a second group of connecting interfaces, and a first capacitor, where the plurality of first power modules are connected in parallel to each other, and the plurality of first power modules are configured to connect to the first group of connecting interfaces; the second power module is configured to connect to the second group of connecting interfaces; and the first capacitor is connected in parallel to the second power module, where the plurality of first power modules and the second power module are configured to perform temperature regulation on an object connected to the first group of connecting interfaces and the second group of connecting interfaces.

Abstract: Systems and methods for dynamically modifying a cache associated with a neural network model of a natural language generator are described. In examples, a neural network model employs a beam search algorithm at a decoder when decoding output and generating predicted output candidates. The decoder utilizes caching techniques to improve a speed at which the neural network operations. When an amount of memory utilized by one or more caches of the neural network model is determined to exceed a threshold memory size, a layer-specific portion of a cache associated with a layer of the neural network model is identified. The identified layer-specific portion of the cache can be deleted when the amount of memory utilized by the cache of the neural network model exceeds the threshold memory size. In examples, data in the cache is deduplicated and/or deleted.

Abstract: A battery main box, a charge-discharge circuit, and a powered device. The battery main box includes two first electrode circuits and one second electrode circuit. A switch is connected between the two first electrode circuits. The two first electrode circuits are respectively configured to be connected to two powered loads and two batteries, and the second electrode circuit is configured to be respectively connected to the two powered loads and the two batteries. The battery main box in the embodiments of the present application includes the two first electrode circuits and the one second electrode circuit, and the switch is connected between the two first electrode circuits.

Abstract: A charge and discharge control method comprises: when a battery heating condition is satisfied, turning on a connecting circuit between a neutral point of a first electric motor and a neutral point of a second electric motor, wherein a first electric motor controller connected to the first electric motor and a second electric motor controller connected to the second electric motor are both connected between a positive electrode and a negative electrode of a battery; and controlling the turning-on/turning-off of bridge arms in the first electric motor controller and the second electric motor controller, and forming, in a circuit in which the battery is located, a charging loop and a discharging loop which are alternately switched.

Abstract: Embodiments of the present application provide a charging and discharging apparatus and a battery charging method, which are capable of ensuring security performance of a battery. The apparatus comprises a bi-directional DC/DC converter and a control unit, wherein the control unit is configured to: receive a first charging current transmitted by a battery management system (BMS) of a battery, control the bi-directional DC/DC converter based on the first charging current to charge the battery through an energy storage battery; receive a first discharging current transmitted by the BMS and control the bi-directional DC/DC converter based on the first discharging current to discharge a battery capacity of the battery to the energy storage battery; and receive a second charging current transmitted by the BMS and control the bi-directional DC/DC converter based on the second charging current to charge the battery through the energy storage battery.

Abstract: A charge-discharge circuit and an electric device. The charge-discharge circuit includes a power supply module, a first drive assembly, a second drive assembly, and a first switch module, where the first drive assembly and the second drive assembly are connected in parallel between a positive terminal and a negative terminal of the power supply module; and a terminal of the first switch module is connected to the first drive assembly, and another terminal of the first switch module is connected to the second drive assembly.

Abstract: A charging and discharging circuit, a battery control circuit and an electrical device. The charging and discharging circuit includes: a power supply module, a first driving assembly, a second driving assembly and a first switch; the power supply module includes a battery, the first driving assembly includes a first motor, and the second driving assembly includes a second motor; the first driving assembly and the second driving assembly are connected in parallel between a positive electrode end and a negative electrode end of the power supply module; and one end of the first switch is connected to a neutral point of the first motor, and the other end of the first switch is connected to a neutral point of the second motor.

Abstract: A digital ocular system for use with image sensors and an ophthalmic microscope includes a housing that connects to the microscope and defines a housing cavity, a first lens having a first optical axis, and a second lens having a second optical axis parallel to the first optical axis. A first micro-display is positioned within the housing cavity to present a first image from the image sensors. The first micro-display has a first center axis arranged at a predetermined angle with respect to the first optical axis. A second micro-display presents a second image from the image sensors. The second micro-display includes a second center axis arranged at the predetermined angle with respect to the second optical axis, such that the first and second micro-displays are horizontally decentered relative to the first and second optical axes, respectively.

Abstract: This application provides an energy storage system control method, a control apparatus, and an energy storage system. The energy storage system is coupled to an energy generation system and includes a plurality of energy storage units. The energy storage system control method includes: controlling, in a first stage, the energy generation system to charge a first energy storage unit in the plurality of energy storage units, where the first stage is a charging stage in a charging cycle of the first energy storage unit; and controlling, in a second stage, the first energy storage unit to discharge electricity to a second energy storage unit in the plurality of energy storage units, where the second stage is a discharging stage in the charging cycle of the first energy storage unit.

Abstract: Systems and methods are provided for training a data model based on training data. The training includes pre-training and fine-tuning the data model based on a combination of an autoregressive (AR) model and a non-autoregressive (NAR) model. Training data may be received and encoded into streams of tokens. A pre-trainer during decoding generates a continuum of data structures of the AR and NAR combined model including a main stream and a series of predicting streams. Masked tokens in predicting streams reference or attend to one or more preceding tokens in the main stream or the preceding predicting streams. A fine-tuner selects streams to generate a trained model according to a target data model. The target data model is determined based on balancing an accuracy constraint and an efficiency constraint for predicting tokens. The decoder acts as abridge between the AR and NAR models in generating a trained data model.

Abstract: The present disclosure provides a method and a device for evaluating a shipping risk caused by a sea ice disaster, and a computing device. The method includes: obtaining a historical daily-scale sea ice thickness data set of a monitored region; evaluating a risk level of sea ice disaster-inducing factors, vulnerability of a disaster-affected body and an exposure level in accordance with the historical daily-scale sea ice thickness data set; determining a disaster-bearing capability and a risk level of the disaster-affected body in the sea ice disaster in accordance with the risk level of the sea ice disaster-inducing factors, the vulnerability of the disaster-affected body and the exposure level; and evaluating shipping risks for different types of disaster-affected bodies within different return periods in accordance with the disaster-bearing capability and the risk level of the disaster-affected body in the sea ice disaster.

Abstract: A tunable eye model includes a housing having an inner chamber and at least one aperture adjacent to an anterior portion of the inner chamber. A lens is at least partially disposed in the at least one aperture, and the lens has a variable focal length. An optical target of the tunable eye model is disposed over a posterior portion of the inner chamber. The optical target is configured to facilitate evaluation of a characteristic of an ophthalmic microscope when viewed through the lens with the ophthalmic microscope.

Abstract: A motor controller includes: a plurality of first power modules, a second power module, a first group of connecting interfaces, a second group of connecting interfaces, and a first capacitor, where the plurality of first power modules are connected in parallel to each other, and the plurality of first power modules are configured to connect to the first group of connecting interfaces; the second power module is configured to connect to the second group of connecting interfaces; and the first capacitor is connected in parallel to the second power module, where the plurality of first power modules and the second power module are configured to perform temperature regulation on an object connected to the first group of connecting interfaces and the second group of connecting interfaces.

Abstract: Provided are a power battery voltage regulation circuit and system, and a control method and a control apparatus therefor. The power battery voltage regulation circuit includes a power module, a heating module, a charge/discharge interface, and a voltage regulation switch assembly, wherein the heating module comprises an energy storage element and a switch module; the power module comprises at least a first power battery and a second power battery; the power module is connected in parallel with the switch module; and an external charge/discharge device is connected in parallel with the power module through the charge/discharge interface; the voltage regulation switch assembly comprises a plurality of switches that are provided between the charge/discharge interface and the power module; and the voltage regulation switch assembly and the switch module are used for regulating, in response to a control signal, a charge/discharge voltage between the external charge/discharge device and the power module.

Abstract: An accelerated attention mechanism with parallel operations can improve machine learning technology by enabling execution of certain matrix multiplication operations in parallel with element-wise operations, leading to an increase in speed without quality loss. To compute attention values in a machine learning model, the mechanism can receive a query vector, key vector, and value vector and split each of these vectors into blocks. For a given query block, the mechanism can determine attention values by performing element-wise operations to update the attention values for the given query block based at least in part on previously computed attention scores for the given query block and a given key block. Concurrent with performance of at least some of the element-wise operations, the mechanism can perform a matrix multiplication operation using given query block and a next key block to determine attention scores for the given query block and next key block.

Abstract: A battery control module, a battery pack, and a battery control system are provided. The battery control module includes a first circuit, a second circuit, and a third circuit. The first circuit is connected to a positive electrode of a first battery module, the second circuit is connected to a positive electrode of a second battery module, and negative electrodes of the first battery module and the second battery module are both connected to the third circuit. The first circuit, the second circuit, and the third circuit are connected to a motor control circuit. Each circuit is a circuit with an adjustable on-off state, to switch a circuit connection relationship between the first battery module and the second battery module with the motor control circuit.

Abstract: Described are examples for detecting anomalies in files. Each of multiple files can be processed to generate corresponding flat files. Values can be extracted from multiple lines of each of the flat files into a parameter vector. Patterns can be generated from the multiple lines based on the values extracted. The parameter vector and the patterns can be provided as input to a machine learning (ML) model to obtain a set of rules for the files based on conditional probabilities. The set of rules can be applied to a set of one or more files to detect anomalies in values in the set of one or more files.

Abstract: Disclosed is a robotic additive and subtractive hybrid forming method and system based on mechanochemical effects. The robotic additive and subtractive hybrid forming system includes a sealing device, an additive forming device, a coating device, a milling device, a tool stand, and a multi-axis manipulator. The multi-axis manipulator coats the surface of an additive deposition region of a workpiece with a metal surfactant using the coating device to significantly reduce the milling force and temperature to prolong the service life of a milling tool and improve the surface quality of a part, and then mill the additive deposition region coated with the metal surfactant using the milling device. The robotic additive and subtractive hybrid forming method and system based on mechanochemical effects effectively solve the problems of low production efficiency, short tool life, high production cost, and the like in an additive and subtractive hybrid manufacturing process.

Abstract: An instrument to facilitate hands-free illumination of an eye for a surgical procedure. The instrument includes an optical end of unique architecture and surfacing such that the instrument may be left immobile while sufficiently illuminating an eye interior with greater than 100° of wide beam spread angle provided. Further, the grind surfacing provided to the end cone of the optical end provides enhanced light distribution.

Abstract: This application relates to a battery heating method, a battery heating circuit, and an electric device. The method includes: acquiring a heating enable signal indicating that a motor is to heat a battery based on a heating circuit, and controlling switching states of switching transistors in a switch circuit in response to the heating enable signal, so as to generate a half-wave current in the motor to heat the battery, where a current waveform of each phase stator winding during the motor-based battery heating process is a half-wave current waveform, thereby increasing current harmonics in stator windings of the motor and dispersing vibration noise energy during the motor-based battery heating process. Thus, as compared to conventional technologies, the vibration noise during the motor-based battery heating process in the embodiments of this application is reduced, thereby alleviating the vibration noise issue during the motor-based battery heating process.