Abstract: Provided are a power grid recovery method and apparatus of a new electric power system based on a second-order cone transformation. The method includes that: electric power data of the new electric power system is acquired; a mixed integer non-linear two-stage robust optimization model based on a multi-state uncertain set is constructed based on the electric power data and in consideration of uncertainty of output power of a new energy unit; the alternating current power flow constraint is simplified by using a second-order cone relaxation technology, and the mixed integer non-linear two-stage robust optimization model is converted into a mixed integer second-order cone two-stage robust optimization model; the mixed integer second-order cone two-stage robust optimization model is decomposed into a master problem and the sub-problem to obtain an optimization result; and a power grid recovery solution of the new electric power system is generated based on the optimization result.

Abstract: A motor controller is used in a drive motor and includes a control apparatus and an inverter circuit. The control apparatus is configured to receive a braking signal of the vehicle, a rotational speed signal of the drive motor, and a torque signal of the drive motor. The control apparatus is further configured to determine that the vehicle is approaching a stop state and needs to park after a rotational speed indicated by the rotational speed signal is greater than zero and less than a preset rotational speed and output a first control signal after a braking force indicated by the braking signal is equal to zero and torque indicated by the torque signal is equal to zero.

Abstract: Provided is display panel, including a display substrate having a display region and a bonding region, wherein the bonding region is provided with multiple pins including a first pin; a driving chip disposed on the bonding region, wherein the driving chip is provided with multiple interfaces including an enable interface, and the enable interface is connected to the first pin; and a circuit board, wherein the circuit board is provided with multiple gold fingers including a first gold finger, and the first gold finger is connected to the first pin, wherein in response to a first potential signal being applied to the enable interface through the circuit board, the communication protocol is not used; and in response to a second potential signal being applied to the enable interface through the circuit board, the communication protocol is used.

Abstract: The present disclosure relates to an information input method. The information input method includes: detecting a carrier medium within a captured field of view of the wearable device; obtaining position information of the carrier medium; displaying an input interface of the wearable device according to the position information of the carrier medium, wherein the input interface is located on the carrier medium; and in response to receiving an input operation on the input interface, determining input information according to the input operation.

Abstract: The systems and techniques described herein relate to predicting user conversions in online advertising. Input data associated with user and advertisement features may be processed through neural networks to generate embedding representations or feature cross representations. A multi-task layer calculates probabilities associated with multiple user actions like clicks, page views, sign-ups, or purchases. Click-through and view-through conversion probabilities may be calculated to generate a score. The systems and techniques described herein perform predictions on multiple types of user actions despite data sparsity and negative transfer challenges, enhancing advertisement targeting and improving conversion metrics.

Abstract: This application provides a network connection method, an electronic device, and a computer-readable storage medium. When an access point device uses a WPA2/WPA3 hybrid encryption mode, if a station device does not have a WPA3 encryption capability and advertises support for WPA3 encryption, the access point device may guide the station device to perform access authentication by using WPA2 encryption. In this way, the station device can successfully be connected to a network in which the access point device is located, thereby improving compatibility of the access point device when using the WPA2/WPA3 hybrid encryption mode.

Abstract: A control method for seamless braking of an electric vehicle, a controller, and an electric vehicle, which are applicable to the field of electric vehicle technologies. In the control method, before a speed of an electric vehicle is equal to a preset speed, a brake system is controlled to brake wheels of the electric vehicle. Then, before a stroke of a brake pedal decreases to be less than a preset stroke, the brake system is controlled to brake the wheels, and the drive motor is controlled to output a compensation torque whose direction is the same as directions of rotational speeds of the wheels. Then, before the stroke of the brake pedal decreases to 0, the compensation torque output by the drive motor is controlled to decrease with the decrease in the stroke of the brake pedal. This can avoid a problem that the vehicle lurches forward.

Abstract: A flexible circuit board includes a connection portion. The connection portion includes: a first circuit board layer group including a first substrate and a first line layer. The first line layer includes grounding units spaced apart along the first direction, a first line portion is arranged at a side of the grounding units, and the first line portion includes at least one first grounding line. A first insulation layer is arranged at a side of the first line layer away from the first substrate. The first insulation layer is provided with an exposed region, an orthographic projection of the exposed region on the first substrate overlaps with orthographic projections of the grounding units, and the first insulation layer exposes at least a part of the at least one first grounding line. An electromagnetic shielding layer is connected to the grounding units through the exposed region.

Abstract: A method for capturing and releasing carbon dioxide is provided. An alkaline earth metal hydroxide is contacted with a carbon dioxide-containing gas to form a basic alkaline earth metal carbonate having carbonate and hydroxide groups and optionally water of hydration. The basic carbonate is regenerated by contacting with heated steam to yield recycled hydroxide and a regeneration off-gas comprising carbon dioxide. Regeneration may be conducted at temperatures up to 300° C., including ?250° C., optionally in a flowing system with an inlet for steam and an outlet for off-gas. The recycled hydroxide may be re-contacted with carbon dioxide for multiple cycles. The off-gas may be cooled, dried, compressed, and/or purified for storage in a storage vessel or geological injection.

Abstract: A time-series InSAR method for monitoring multi-dimensional deformation of a landslide includes the following steps: firstly, obtaining a deformation observation of a target landslide in a line-of-sight direction; and subsequently inputting the deformation observation into a monitoring model with a fractal composite structure deformation constraint model to thereby obtain deformation time series of a sliding mass in vertical, east-west, downslope, and perpendicular-to-downslope directions. This method can simultaneously obtain characteristics of the deformation time series of the sliding mass along four dimensions, namely the vertical, east-west, downslope, and perpendicular-to-downslope directions. A model constructed by the method covers linear, acceleration, periodicity, high frequency, and thermal expansion deformation, fully considering complexity of landslide deformation and having strong adaptability.

Abstract: A display device and a method for manufacturing a display device are provided. The display device includes: a display module including a non-casting area and a casting area at least partially around the non-casting area; and an injection molding edge sealing portion, arranged on a non-light-emitting side of the display module and located in an area of the casting area close to the non-casting area. The injection molding edge sealing portion includes an edge sealing glue arranged around the non-casting area, and the edge sealing glue is configured to seal with an injection mold.

Abstract: A motor control unit for an electric vehicle, a powertrain, and a control method for controlling a drive motor. The powertrain includes the motor control unit and the drive motor. The motor control unit is configured to: receive a torque signal and control the drive motor to output torque. The motor control unit is configured to: in response to that a decrease rate of a rotational speed of the drive motor is less than a preset rate and the rotational speed of the drive motor is less than a preset value, control the drive motor to output second positive torque, where the second positive torque is greater than a torque value indicated by the torque signal. Under the effect of the second positive torque, a braking speed or deceleration of the vehicle is accurately adjusted. This improves comfort of the vehicle during braking.

Abstract: A fracturing hose for a high-pressure oilfield includes: a hose and a connector disposed at an end of the hose, where an outer wall of the connector is provided with a limit groove and a flange; a limit assembly is disposed in the limit groove; the flange is sleeved outside the connector; and the limit assembly is configured to limit a position of the flange. The limit assembly can replace the limit screw used in the prior art. Without the limit screw, the limit assembly can also be mounted conveniently, and axially limit the position of the flange, thereby effectively preventing the situation that the limit screw is cut off by the flange in the prior art. When the flange moves relative to the connector and the limit assembly falls off the flange, the limit assembly can still remain as a whole on the limit groove.

Abstract: Systems and methods for secure user authentication are described. In certain embodiments, a client device such as a smartphone may be provisioned with a secure key and/or other secret information. The client device may be used to generate unique secure tokens and/or other credentials used in connection with an authentication process. A user may provide the generated tokens and/or other credentials to a service provider in connection with a request to access a managed service. The validity of the generated tokens and/or other credentials may be verified by an authentication service in communication with the service provider.

Abstract: A motor controller, a powertrain, and a vehicle are disclosed and relate to the field of new energy vehicles, and may be used in a pure electric vehicle and a hybrid vehicle. The motor controller includes an inverter circuit and a control circuit. The control circuit controls, in response to that an absolute value of a torque requirement indicated by a torque signal is greater than or equal to a preset torque value, the inverter circuit to output a three-phase alternating current. The control circuit controls, in response to that a rotation speed of the motor is less than a first rotation speed value or greater than a second rotation speed value and that the absolute value of the torque requirement indicated by the torque signal is less than the preset torque value, a plurality of switching transistors in the inverter circuit to be cut off.

Abstract: The present disclosure relates to a data processing method for a detector of a medical device, which includes: obtaining a plurality of dark current values of at least one detector channel of a detector within a preset time period, adjusting the plurality of dark current values based on a preset scanning precision to determine a plurality of adjusted dark current values, and determining a dark current compensation value corresponding to the at least one detector channel based on the plurality of adjusted dark current values.

Abstract: The deluge valve assembly includes: a deluge valve, in which the deluge valve includes a water inlet cavity, a water outlet cavity, and a diaphragm cavity. The water inlet cavity is suitable for communication with the fire protection pipe network so as to make water from the fire protection pipe network flow into the water inlet cavity; a water inlet pipeline, in which an inlet of the water inlet pipeline is connected with the water inlet cavity, and an outlet of the water inlet pipeline is connected with the diaphragm cavity; a water outlet pipeline, in which an inlet of the water outlet pipeline is connected with the diaphragm cavity; reinforcement members, in which at least two of the deluge valve, the water inlet pipeline, and the water outlet pipeline are connected through the reinforcement members. The deluge valve assembly has advantages of good performance in anti-vibration and reliability.

Abstract: A control method for seamless braking to stop of an electric vehicle, a vehicle controller, and an electric vehicle. At a first moment, four brake apparatuses of the electric vehicle are controlled to brake four wheels of the electric vehicle. After the first moment, a front drive motor is controlled to output front drive compensation torque, and a rear drive motor is controlled to output rear drive compensation torque. Directions of the front drive compensation torque and the rear drive compensation torque are the same as rotational speed directions of the wheels of the electric vehicle. Based on this, the front drive motor and the rear drive motor are controlled to output the compensation torque, to reduce a deceleration of the vehicle, thereby reducing shaking caused by a fast speed change rate of the electric vehicle during braking.

Abstract: A power conversion apparatus includes a direct current end, a positive direct current bus, a negative direct current bus, a positive bus capacitor, a negative bus capacitor, at least three inverter bridge arms, a switch unit, a controller, and filter inductors, filter capacitors, and alternating current ends that correspond to the at least three inverter bridge arms. A third end of each inverter bridge arm sequentially passes through a filter inductor, a filter capacitor, and a switch unit that correspond to each inverter bridge arm, and is connected to a bus midpoint. The controller is configured to: when a voltage of a power grid is less than or equal to a first voltage threshold, control the switch unit to be turned off or impedance of the switch unit to be increased; then control a amplitude of the modulated wave of each inverter bridge arm to increase.

Abstract: The systems and techniques described herein relate to predicting user conversions in online advertising. Input data associated with user and advertisement features may be processed through neural networks to generate embedding representations or feature cross representations. A multi-task layer calculates probabilities associated with multiple user actions like clicks, page views, sign-ups, or purchases. Click-through and view-through conversion probabilities may be calculated to generate a score. The systems and techniques described herein perform predictions on multiple types of user actions despite data sparsity and negative transfer challenges, enhancing advertisement targeting and improving conversion metrics.