Abstract: A foam is obtained by foaming a resin composition, which comprises a hydroxyl-terminated hydrogenated styrenic block copolymer of (A-B)n-OH, (B-A)n-OH, A(B-A)n-OH, or B(A-B)n-OH having a hydroxyl group at the terminal; wherein the A block comprises a styrene monomer unit and the B block comprises a conjugated diene monomer unit; wherein the hydroxyl-terminated hydrogenated styrenic block copolymer comprises 10˜60% by weight of the styrene monomer unit; 40 mol % or more of the conjugated diene monomer unit is hydrogenated; and the hydrogenated styrenic block copolymer has a weight average molecular weight of about 30000 to about 200000; the 1,2-vinyl bond content in the conjugated diene monomer unit of the hydroxyl-terminated hydrogenated styrenic block copolymer is in the range of 5 to 60 mole % prior to hydrogenation.

Abstract: An X-ray measurement system with high signal resolution is provided. The X-ray measurement system includes an X-ray generator, an X-ray optical element group, a multi-dimensional X-ray detector and a processing device. The X-ray generator is configured to generate an incident X-ray beam. X-ray optics are used to guide the incident X-ray beam to a to-be-tested sample. The multi-dimensional X-ray detector is used to receive the measurement X-ray generated by irradiating the incident X-ray beam on the to-be-tested sample. The multi-dimensional X-ray detector includes an insulation layer, a plurality of first electrode layers, a photodiode layer, an X-ray conversion material layer made of amorphous selenium, and a second electrode layer. The processing device is configured to collect a to-be-tested X-ray signal and generate a plurality of measurement results that include a plurality of mode signals of different orders.

Abstract: A device and method for heating a battery are provided. The device is provided on a first power-consuming device and includes: a first interface electrically coupled to a neutral point of a motor winding of the first power-consuming device; a second interface electrically coupled to a negative electrode of a battery of the first power-consuming device; and a control module coupled to a control system of the first power-consuming device and a control system of a second power-consuming device to coordinate and control the first power-consuming device and the second power-consuming device. The first interface is engageable with a third interface electrically coupled to a neutral point of a motor winding of the second power-consuming device. The second interface is engageable with a fourth interface electrically coupled to a negative electrode of a battery of the second power-consuming device. The control module is configured to perform a battery heating step.

Abstract: A method and an apparatus for correcting a thermal imaging image are provided, the method includes: determining a motion state of a thermal imaging device corresponding to a thermal image to be corrected; determining a noise interference pixel from the thermal image to be corrected by using a target screening condition corresponding to the motion state; performing correction on the thermal image to be corrected based on the noise interference pixel. Target screening conditions corresponding to different motion states are different. That is, the noise interference pixels corresponding to different motion states can be determined for different motion states of the thermal imaging device, and then the thermal image to be corrected can be corrected by using the noise interference pixels corresponding to the motion state, thereby achieving an effect of accurately correcting the thermal image to be corrected in different motion states, and improving the accuracy of image correction.

Abstract: An illuminated contact lens system for illuminating an interior of a patient's eye includes a contact lens, an external light source, and a light engine. The lens refracts directed light into the eye. The light source emits the directed light toward the eye. The light engine transmits electronic control signals that cause the light source to emit the directed light. A prism array connected to an annular tube containing the light source may optionally shape the directed light into a conical distribution pattern. A control board may drive the light source in response to the electronic control signals, and may be optionally used as a proximity sensor. A method includes receiving the electronic control signals from the light engine via the control board, illuminating the light source, and emitting the directed light from the toward the eye.

Abstract: An electrical apparatus and a method for controlling heating thereof are disclosed. Before detecting a mobile electrical apparatus is in operation, the electrical apparatus may first receive input for a driving heating mode selected by a user. The driving heating mode corresponds to an enablement of a heating function is allowed or an enablement of a heating function is to be allowed. Thus, the battery heating function may be enabled or disabled according to the operating parameters of the battery and the motor based on the current driving heating mode. Further, a heating mode that matches the electrical apparatus may be selected based on usage habits and the current driving environment of the electrical apparatus for heating the battery. Further, the example methods avoid ineffective heating increased by manually controlling a battery self-healing function and the resulting high energy consumption in related technologies.

Abstract: A charging/discharging apparatus, a method for charging a battery and a charging/discharging system, the charging-and-discharging apparatus including a bidirectional AC/DC converter, a first DC/DC converter, and a control unit, where the first DC/DC converter is a bidirectional DC/DC converter; and where the control unit is configured to: receive a first charging current sent by a BMS of a battery, control the bidirectional AC/DC converter and the first DC/DC converter according to the first charging current to charge the battery through an AC power; receive a first discharging current sent by the BMS and discharging a power of the battery according to the first discharging current; and receiving a second charging current sent by the BMS and control the bidirectional AC/DC converter and the first DC/DC converter according to the second charging current to charge the battery through the AC power.

Abstract: A regulation circuit may include: a battery side, configured to be connected to the battery; a bus side, configured to be connected to an external power supply; a power module, configured to regulate a voltage and connected between the battery side and the bus side; and a control switch group. The control switch group includes: a first control switch, connected between the bus side and the power module; a second control switch, connected between the first control switch and the battery side; and a third control switch, connected between the power module and the battery side.

Abstract: A device communication method includes: establishing, by an electric device, a communication connection with a charging device; and performing, by the electric device, a function negotiation with the charging device through the communication connection. A service function of the function negotiation includes a charging and discharging function and/or a discharging function.

Abstract: The present application provides a multi-controller system and a coding method thereof, an electrical apparatus, a control device, a computer-readable storage medium, and a computer program product. The multi-controller system includes a master controller, a first slave controller and a second slave controller, the master controller being connected to the first slave controller through a first trigger signal line, and the first slave controller and the second slave controller being connected through a second trigger signal line; the master controller is configured to: send a first trigger signal to the first slave controller through the first trigger signal line, and code the first slave controller; the first slave controller is configured to: send a second trigger signal to the second slave controller through the second trigger signal line in response to receiving the first trigger signal, so that the second slave controller is able to be coded.

Abstract: Embodiments of the present application provide a traction battery charging and discharging circuit, a system and a control method and a control device therefor. The traction battery charging and discharging circuit comprises a power module, a heating module, and a regulating switch assembly. The heating module comprises an energy storage element and a switch module. The power module comprises at least a first traction battery and a second traction battery. The regulating switch assembly comprises a plurality of switches, and is connected to the power module and the heating module. The regulating switch assembly is configured to connect the first traction battery to the second traction battery in series or in parallel in response to a regulation signal.

Abstract: A machine learning-based method for designing a high-strength high-toughness steel, including: (S1) obtaining data and filling in missing parts to form a data set; (S2) selecting feature data in the data set to form a standard data set; (S3) constructing two machine learning models of the high-strength high-toughness steel; (S4) completing training after the two models are evaluated to be qualified; (S5) finding frontier points, drawing a Pareto front, and distinguishing a known region and a feature space; (S6) in the feature space, setting a step for the feature data, drawing a grid space, and performing multiple training predictions on each grid point by using the models, to obtain predicted Gaussian distributions of two objectives; and (S7) searching for an expected improvement point through an efficient global optimization algorithm, and obtaining design parameter values of corresponding features.

Abstract: The present application provides a motor control device, a drive device and an electric apparatus. The motor control device comprises a case in which a motor inverter, a heating power module and an absorption capacitor are housed; each inverter power module in the motor inverter is connected to a motor multiphase interface; the heating power module is connected to a motor neutral interface; a positive input end of the heating power module is connected to a first battery-powered positive interface, and a negative input end is connected to a first battery-powered negative interface; two ends of the absorption capacitor are respectively connected to a high-voltage positive terminal and a high-voltage negative terminal of the heating power module; and a second battery-powered positive/negative interface is connected to a positive/negative input end of the motor inverter.

Abstract: A charging and discharging control method and apparatus, a device, and a storage medium are disclosed. The method is applied to a charging system, the charging system comprising at least two charging devices that are separately connected to batteries. The method comprises: determining, when at least one of the at least two batteries requests to be discharged, a discharging path for the battery requesting to be discharged according to charging and discharging parameters of batteries currently connected. The method autonomously controls the discharging path based on the charging and discharging parameters of the batteries, which helps to shorten the discharging path so that the power discharged from batteries requesting to be discharged at the same moment can be directly charged through the DC bus into the batteries requesting to be charged, thus enabling the conversion path for that part of power to be very short and improving the charging efficiency.

Abstract: This application provides an electric vehicle battery control circuit, system, and control method. The electric vehicle battery control circuit includes an electric vehicle battery, an energy storage module, a charging module, and a regulation switch component; where the charging module includes a switch module; the electric vehicle battery is connected in parallel with the switch module; the regulation switch component includes multiple switches, where the multiple switches are disposed between the electric vehicle battery and the charging module and between the energy storage module and the charging module; and the energy storage module, the regulation switch component, and the switch module are configured to, in response to control signals, regulate charging/discharging between the electric vehicle battery and the energy storage module, or regulate charging/discharging between the electric vehicle battery and the charging module as well as the energy storage module.

Abstract: Provided are a battery heating control method and apparatus, an electric vehicle, and a storage medium. The method includes: detecting whether the state of a battery meets a preset state condition when a first signal is detected; and performing heating control on the battery according to the situation in which the state of the battery meets the preset state condition. The pre-detection logic of a battery heating function is triggered by detecting the first signal. Since the first signal includes an interaction signal between a person and a vehicle, the pre-detection logic of the state of the battery is prior to the in-place condition of a driver. As a result, after it is determined that the state of the battery meets the condition, the battery heating function can be quickly started at any time.

Abstract: Embodiments of the present application provides a method for pre-charging a power conversion device and a power conversion device. The power conversion device is configured to perform power conversion between a charging pile and a traction battery, and the method includes: receiving, by the power conversion device, a first message sent by a battery management system of the traction battery, and the first message is configured to indicate that the battery management system is ready for charging; performing, by the power conversion device, a pre-charging, and the pre-charging includes: charging a capacitor in the power conversion device; and forwarding, by the power conversion device, the first message to the charging pile after the pre-charging is completed. The technical solution of the embodiments of the present application can ensure a normal charging process.

Abstract: An E-paper display panel including an E-paper display layer, a first substrate, a pixel array layer, a common electrode layer, and a driving circuit is provided. The first substrate is disposed at a first side of the E-paper display layer. The pixel array substrate is disposed between the first substrate and the E-paper display layer and includes touch electrodes and driving pixels arranged in an array. Each driving pixel includes a first pixel electrode and a second pixel electrode. The touch electrodes, the first pixel electrode, and the second pixel electrode are overlapped with each other. The common electrode layer is disposed at a second side of the E-paper display layer. The first side is opposite to the second side. The driving circuit is in signal communication with the common electrode layer and the pixel array layer. The touch electrodes are individually in signal communication with the driving circuit.

Abstract: The present application provides a battery charging control method and apparatus, an electrical device, a charging device, and a storage medium. The battery charging control method includes: acquiring a battery heating state; and sending a first message carrying the battery heating state to a charging device, so that the charging device judges whether to enter a battery charging stage according to the battery heating state; wherein the battery heating state is a heating state or a heating completion state. Compared with the prior art, in the present application, the electrical device can autonomously implement a process of pulse heating followed by DC charging by relying on the interaction with the charging device, thereby avoiding possible damage to a power 10 battery caused by charging in a low-temperature environment and improving the experience of a user.

Abstract: A method for heating a power battery (1), an apparatus for heating a power battery (1), an electronic device, a system for heating a power battery (1), and a storage medium. The heating method includes: acquiring a current state parameter value of the power battery (1); and heating the power battery (1) using a corresponding heating mode based on the current state parameter value. After the temperature of the power battery (1) rises, the discharge capacity of the power battery (1) increases, and charging can be achieved.