Abstract: The application relates to a method and system for a pilot directional protection of LCC-HVDC lines based on virtual grounding resistance The method comprises: Obtaining a conduction state information of a converter and characteristic parameters of a converter circuit within one commutation period after a fault occurs; according to the conduction state information and characteristic parameters, determining characteristic frequency of the circuit; according to the characteristic frequency and characteristic parameters, determining a virtual grounding resistance; according to the virtual grounding resistance, determining fault areas.

Abstract: The invention relates to a fault transient features optimization method and system of AC/DC system based on dissipated energy, which belongs to the HVDC transmission technology and is used to solve the problem that the DC pulsed current is too high and the generator power angle swing of the AC system on the rectifier side is too large during the process of the HVDC transmission system restart on fault.

Abstract: A charging and discharging assembly, a battery core and a battery module are provided in the disclosure, which are applied in a lithium ion battery. The charging and discharging unit includes a positive electrode plate including positive tabs, a negative electrode plate including negative tabs, and a separator for separating the positive electrode plate and the negative electrode plate. The positive tab at least includes a first positive tab and a second positive tab, and the negative tab at least includes a first negative tab and a second negative tab. The positive electrode plate, the separator and the negative electrode plate are stacked with each other. The positive tabs and the negative tabs are respectively shifted to same sides of the positive electrode plate and the negative electrode plate.

Abstract: The present disclosure relates to improved placement, positioning, and/or orientation of radiators and baffles on a vehicle to improve and/or optimize air flow, radiator, and fuel cell performance.

Abstract: An information processing apparatus includes a controller configured to: acquire mobile body information including information that indicates the respective positions of a plurality of mobile bodies that are usable for machine learning; and select two or more mobile bodies to be used for machine learning based on the mobile body information.

Abstract: A computing system, computer-readable storage medium, and method for individual treatment effect (ITE) estimation under high-order interference in hypergraphs are described herein. The method includes accessing, via a processor, a hypergraph dataset including multi-way interactions among nodes within each hyperedge of a corresponding hypergraph, where the hypergraph dataset corresponds to a treatment assignment for each node. The method includes performing representation learning on the hypergraph dataset to control for confounders corresponding to features of each node and to learn a confounder representation for each node. The method also includes modeling a high-order interference representation for each node by propagating the learned confounder representation and the treatment assignment for each node through a hypergraph neural network.

Abstract: The present embodiments relate to display of glints associated with real-world objects in an environment displayed on an extra reality (XR) device. The glint can include a virtual object associated with a real-world object, such as an indication of a social interaction associated with a real-world object, a content item tagged to an object, etc. The system as described herein can present glints on a display of an XR device based on a distance between the XR device and a location associated with the glint. Responsive to selection of a glint in the environment, additional information can be presented relating to the glint or another action can be taken, such as to open an application. In some instances, a glint can include a series of search results relating to a corresponding real-world object to provide additional information relating to the real-world object.

Abstract: Each of information processing apparatuses generates a local model by performing machine learning of a global model using local data. Each of the information processing apparatuses calculates an evaluation value according to an evaluation index. The information processing apparatuses exchange the calculated evaluation values by proximity communication. Each of the information processing apparatuses determines whether the evaluation value of the information processing apparatus has a high evaluation or not based on a result of comparison between the evaluation value and evaluation values of the other information processing apparatuses. At least one of the information processing apparatuses that has determined that the evaluation value has the high evaluation transmits local model information indicating the generated local model to a server apparatus.

Abstract: A planetary gear train transmission device of a hybrid vehicle is provided, which belongs to the technical field of transmissions. A transmission device of a hybrid vehicle based on a planetary gear train, which has a simple structure and is convenient to maintain is provided. The transmission device is composed of two motors, two clutches, one simple planetary gear train, and one complex planetary gear train. One motor is mainly used for generating power, and the other motor is used for driving the vehicle to move forward and brake to recover energy. Selection of different speed ratios and different working modes can be achieved by means of different combinations of the clutches and the planetary gear trains and different working states of the engine and the two motors. The present disclosure is convenient to control, has a compact structure, and adopts a few of parts.

Abstract: The present disclosure is directed to a single-phase reclosing method, device and storage medium for AC/DC system. The method comprises: acquiring three-phase voltages at inverter-side AC bus close to the transformer, three-phase currents measured at the outlet of inverter-side AC line and three-phase voltages at inverter-side AC bus far from the transformer; calculating the energy calculation value and energy operation value of the fault line; identifying the fault nature of fault line within the maximum time delay, according to the energy calculation value and energy operation value of fault line and an energy criterion of transient/permanent fault; issuing a reclosing control signal based on the fault nature of fault line to realize effective reclosing of the fault line.

Abstract: Aspects of the present disclosure are directed to a holographic calling system providing holographic calling between an artificial reality device and a mobile device having both front and back facing cameras. The user of the mobile device can position it so one of the cameras is pointed toward their face and another camera captures the user's hand not holing the mobile device. The holographic calling system can automatically determine the position of the mobile device in relation to the user's face and hand. Once the mobile device is positioned within an appropriate capture zone, the captured images of the user's face are used to create a first representation of the sending user's face, the captured images of the user's hand are used to create a second representation of the sending user's hand. Each representation is provided as output from a receiving artificial reality device, positioned relative to each other.

Abstract: The application involves a stability evaluation method and system of direct-drive wind turbine generator, which belongs to the technical field of wind power generation. It solves the problems of poor stability of direct-drive wind turbine generator, low safety performance, failure to realize mutual cooperation between online stability evaluation and parameter adjustment in the existing technology. Firstly, the variation of direct-drive wind turbine generator terminal voltage, current, power and PLL angle of direct-drive wind turbine generator is measured, the terminal energy and the energy negative gradient of direct-drive wind turbine generator is calculated. Then, the system stability is assessed according to the value of energy negative gradient, the influence of the critical parameters on system stability is analyzed and the preliminary adjustment strategy is proposed.

Abstract: The present disclosure discloses an ethylene degradation catalyst and a preparation method and a use thereof.

Abstract: The disclosed technology can execute rules for an ambient avatar to perform physical interactions based on a status of a represented user and/or a context of a viewing user. The disclosed technology can further evaluate and select movement points that support avatar movement in an artificial reality environment. The disclosed technology can yet further detect trigger conditions and transition a user presence in a shared communication session. And the disclosed technology can generate stylized 3D avatars from 2D images.

Abstract: The present embodiments relate to display of glints associated with real-world objects in an environment displayed on an extra reality (XR) device. The glint can include a virtual object associated with a real-world object, such as an indication of a social interaction associated with a real-world object, a content item tagged to an object, etc. The system as described herein can present glints on a display of an XR device based on a distance between the XR device and a location associated with the glint. Responsive to selection of a glint in the environment, additional information can be presented relating to the glint or another action can be taken, such as to open an application. In some instances, a glint can include a series of search results relating to a corresponding real-world object to provide additional information relating to the real-world object.

Abstract: An information processing system includes: a first device provided with a first storage unit that stores base station topology information including base station information relating to a base station that communicates with a vehicle in a traveling route of the vehicle and information defining the traveling route along which the vehicle moves based on at least one of design information and statistical information included in the base station information, and a first processor that acquires handover information between the base station and a communication unit provided in the vehicle and stores the handover information in the first storage unit; and a second device provided with a second processor that acquires the base station topology information and the handover information from the first storage unit of the first device, associates the handover information with the base station topology information, and determines location information and movement direction information of the vehicle.

Abstract: Circuit and method for preventing screen flickering, a drive circuit for a display panel, and a display apparatus are provided, relating to the field of display technology. The circuit for preventing screen flickering includes a control sub-circuit configured to control a gate drive circuit of the display panel to output a gate cut-off level during a power-on period of the display panel. The gate drive circuit of the display panel is controlled to output the gate cut-off level during the power-on period, the gate cut-off level is provided to gate lines of the display panel such that TFTs connected to the gate lines are in cut-off state during the power-on period.

Abstract: A planetary gear train transmission device of a hybrid vehicle is provided, which belongs to the technical field of transmissions. A transmission device of a hybrid vehicle based on a planetary gear train, which has a simple structure and is convenient to maintain is provided. The transmission device is composed of two motors, two clutches, one simple planetary gear train, and one complex planetary gear train. One motor is mainly used for generating power, and the other motor is used for driving the vehicle to move forward and brake to recover energy. Selection of different speed ratios and different working modes can be achieved by means of different combinations of the clutches and the planetary gear trains and different working states of the engine and the two motors. The present disclosure is convenient to control, has a compact structure, and adopts a few of parts.

Abstract: An image capturing method and a terminal device are provided. The method includes entering a camera application to start a lens and display a viewfinder interface, converting an original image captured by the lens into a red-green-blue (RGB) image, and decreasing luminance of the RGB image to be less than first luminance or increasing the luminance of the RGB image to be greater than second luminance, to obtain a first image; converting the RGB image into N frames of high-dynamic-range (HDR) images, and fusing color information of pixels in any same location on the first image and the N frames of HDR images to obtain a final image.

Abstract: The disclosure relates to an active damping control method and system for sub-synchronous oscillation of DFIG, and storage medium. The method comprises the following steps: collecting oscillation components of stator current and/or stator voltage; determining each energy branch in DFIG converter according to the flow path of the oscillation component(s) of the stator current and/or the stator voltage in DFIG converter; determining the corresponding function of each energy branch according to oscillation component(s) the stator current and/or the stator voltage; determining the energy compensation branch and its corresponding energy compensation function in DFIG converter according to the corresponding function of each energy branch and converter parameters; controlling the sub-synchronous oscillation of DFIG by controlling the energy compensation branch according to the energy compensation function.