Abstract: The present disclosure provides a display substrate and a display device. The display substrate includes a base substrate; a plurality of thin film transistors on the base substrate, each thin film transistor including a gate electrode on the base substrate; a gate insulating layer on the gate electrode; a semiconductor layer on the gate insulating layer; and a first electrode and a second electrode on the semiconductor layer; wherein the gate electrode includes an inner portion and a peripheral portion, the peripheral portion including a first portion and a second portion, wherein an orthographic projection of the second portion on the base substrate is closer to an orthographic projection of an end of the gap on the base substrate than an orthographic projection of the first portion on the base substrate, and a width of the first portion is less than a width of the second portion.

Abstract: An image processing method includes: obtaining first spatial coordinates of a virtual three-dimensional object, where the virtual three-dimensional object is a three-dimensional object displayed in space in naked-eye 3D; obtaining second spatial coordinates of the spatial entity; determining an intersection space and positional relationship between the virtual three-dimensional object and the spatial entity according to first spatial coordinates and second spatial coordinates; and hiding a display of the virtual three-dimensional object in the intersection space according to the positional relationship.

Abstract: A method for selecting a grasp posture of a dual-arm robot includes: setting a fitness value range, an iteration quantity threshold, and a fitness function; calculating the fitness value of the population, determining whether the population is within the value range, ending an iteration if the population is within the value range or continuing to determine whether a quantity of iterations reaches the iteration quantity threshold if the population is not within the value range, ending the iteration if the quantity of iterations reaches the iteration quantity threshold or performing crossover and mutation operations if the quantity of iterations does not reach the iteration quantity threshold, and dynamically selecting a gene retention strategy based on an iteration depth and a fitness value to retain a gene; updating a gene population representing a grasping position and performing determining cyclically; and obtaining an optimal target corresponding to dual arms after the iteration.

Abstract: An adjustable deforming composite structure based on a hydrogen-induced expansion effect and a preparation method therefor are provided. The hydrogen-induced expansion effect means metals absorb hydrogen under a hydrogen-containing atmosphere and at a temperature to produce a volume expansion effect. Reactions between the metals and hydrogen are reversible reactions. When a hydrogen partial pressure is reduced or the temperature is increased, the hydrogen in the metals is removed, and the metals are restored to an original shape. Under a stimulation of external hydrogen and heat, a composite of a hydrogen-absorbing metal and other non-hydrogen-absorbing materials undergo an adjustable deformation according to a design, and a material undergoes reversible shape changes. The preparation method is applied to composite materials for a 4D printing and is used for an intelligent shape adjustment at a medium to high temperature.

Abstract: Testing devices for testing target test devices each composed of one or more battery cells, such as battery cells and battery packs. In some embodiments, a testing device may be considered self-contained in that it may include sufficient onboard systems and features to allow the testing device to conduct testing on one or more target test devices with minimal inputs, such as electrical power, higher-level instructions, and/or control inputs. In some embodiments, a testing device may include an explosion- and/or fire-proof or -resistant enclosure. In some embodiments, components of a testing device may be modularized for easy reconfiguring for different testing and/or different target test devices. In some embodiments, a plurality of testing devices can be controlled by a central testing controller. Related methods and systems are also disclosed.

Abstract: Disclosed are a display panel and a driving method therefor, and a display device. Two adjacent rows of sub-pixels are taken as a row group, and the row group is provided with a first sub row group and a second sub row group that are arranged in a column direction; a gate electrode of a first transistor in the first sub row group is electrically connected to a first gate line; a gate electrode of a second transistor in the second sub row group is electrically connected to a second gate line; two adjacent sub-pixels in the column direction share one third transistor, and a gate electrode of the third transistor in the row group is electrically connected to a third gate line; and the first transistor and the second transistor in one column of sub-pixels are electrically connected to a data line by means of the shared third transistor.

Abstract: Provided is a display substrate. The display substrate includes: a base substrate including a display region and a non-display region surrounding the display region; a gate drive circuit disposed in the non-display region; a plurality of first signal lines disposed in the peripheral region and connected to the gate drive circuit; and a plurality of second signal lines disposed in the non-display region and connected to the gate drive circuit; wherein each of the first signal line and the second signal line is configured to supply a signal to the gate drive circuit, and a frequency of the signal supplied by the first signal line is lower than a frequency of the signal supplied by the second signal line.

Abstract: A projection method includes obtaining position information of eyes of a plurality of users relative to a target screen in space, the position information including spatial coordinate information and angle information, determining, based on the spatial coordinate information, a focus area of each user on the target screen and corresponding rendering content information, rendering the rendering content information based on the angle information to obtain a rendering image corresponding to the user, and projecting the rendering image corresponding to the user onto the focus area on the target screen corresponding to the user.

Abstract: A control method includes responding to a first trigger event to control a screen to display a set three-dimensional (3D) cubic space region, responding to an operation on the set 3D cubic space region to obtain adjustment information of the set 3D cubic space region, adjusting the set 3D cubic space region based on the adjustment information to obtain an adjusted 3D cubic space region, and controlling the screen to display the adjusted 3D cubic space region.

Abstract: An apparatus management and control method includes obtaining an operation position of a target operation of a user at a holographic screen, determining a target apparatus located in a same space as the holographic screen based on the operation position, and controlling the target apparatus based on the target operation.

Abstract: Projection control method, electronic device, and storage medium are provided. The projection control method includes obtaining a first depth data corresponding to a reference object; obtaining a second depth data corresponding to a remote object; determining a first scaling ratio corresponding to the remote object according to the first depth data and the second depth data; and performing a holographic projection on the remote object according to the first scaling ratio and the second depth data, to obtain a first projection image.

Abstract: In a method of automatically creating accounts, a user identifier and a password are obtained in response to a request of a user for login to a system. Whether the user identifier exists in the first database is determined. When the user identifier does not exist in the first database, whether the user identifier and the password conform to an account rule is determined. When the user identifier and the password conform to the account rule, an account for the user is created according to the user identifier and the password. The method improves the ease and efficiency of creating, accounts.

Abstract: The present invention provides a method for eddy current thermography defect reconstruction based on electrical impedance tomography, first, obtaining a thermal reference image of temperature change with time by acquiring a thermogram sequence S of the specimen in the process of heating and fitting a curve for pixels of each location of the thermogram sequence S, then, creating a current matrix and a magnetic potential matrix, and calculating the satisfied conductivity distribution through iterations, so as a reconstructed image is obtained, then taking the low conductivity area of the reconstructed image as the defect profile, thus the defect profile is identified and quantified.

Abstract: The present disclosure relates to the technical field of computers, and in particular to a widget display method and apparatus, an electronic device and a computer-readable storage medium. The widget display method applied to a live streaming server comprises: determining a target widget required for display; generating a widget display request on the basis of widget information of the target widget and an area identifier used for indicating a widget display position; and sending the widget display request to a designated client having a live broadcast interface enabled, such that the designated client displays the target widget corresponding to the widget information in an designated display area in the live broadcast interface, thereby relieving the service processing pressure of the client.

Abstract: A method for processing information, applied to a first client, is disclosed. The method includes displaying a live broadcast page of a first user account for a live broadcast. The first user account is logged into the first client and includes a live broadcast function. The method includes obtaining a first information in the live broadcast page. The first information is sent from the first user account to a second user account, the second user account comprises the live broadcast function and is in a different live broadcast room than the first user account. The method includes sending the first information.

Abstract: The present disclosure discloses a resistivity measurement method, device and system. The method comprises: placing a core to be measured into the core holder after a 100% saturated water treatment, and injecting a predetermined confining pressure by the confining pressure pump; turning on the displacement source to carry out a displacement, and at an interval of a predetermined time period, acquiring a current value by the ammeter and a voltage value by the voltmeter; determining a resistivity of the core according to the current value, the voltage value, an arc length of the curved electrode, and a radius and a length of the core. The present disclosure can realize a rock resistivity measurement in a vertical direction under formation conditions for a plunger-type core, without needing to change the core preparation technology or method.

Abstract: Disclosed are a method, system and device for pushing information, and storage medium thereof. The method includes: receiving an information pushing request transmitted by a service end; then obtaining the online state information of a live broadcast room on the basis of identification information carried in the information pushing request, and according to the online state information, determining a signaling server set; and pushing information content to each signaling server in the signaling server set, and by means of each signaling server, pushing the information content to each client connected to the live broadcast room.

Abstract: A method for managing network devices, apparatus, and computer readable storage medium are disclosed. The method is applied to a management apparatus. After receiving a login request from a client device, the management apparatus first determines whether the requesting user account is in the stored user account list, and then determines whether the client device is a trusted client and whether it can pass an automatic log-in verification process. The management apparatus enables a network device management function only for a requesting user account that is trusted and which passes the automatic log-in verification process. After the user logs in to the management apparatus, subsequent verification is required to enable management of the actual network device, improving the security of other network devices through the disclosed management apparatus.

Abstract: A method for processing information, applied to a first client, is disclosed. The method includes displaying a live broadcast page of a first user account for a live broadcast. The first user account is logged into the first client and includes a live broadcast function. The method includes obtaining a first information in the live broadcast page. The first information is sent from the first user account to a second user account, the second user account comprises the live broadcast function and is in a different live broadcast room than the first user account. The method includes sending the first information.

Abstract: A data converter, a signal transmission method, and a signal transmission system for transmitting a signal to a programmable logic controller are provided. The data converter: performs sampling multiple times with respect to data detected by a sensor in one communication period of communication with a programmable logic controller; acquires statistical data by statisticizing a plurality of sampling data in the one communication period; and transmits the statistical data to the programmable logic controller when the one communication period is reached. Therefore, a signal sampling density is improved, and thus control accuracy can be enhanced. At the same time, a data transmission amount of a bus is reduced, a load on the programmable logic controller is reduced, and user convenience is improved.