Abstract: A display substrate and a display apparatus are provided. The display substrate includes a base substrate; sub-pixels arranged in an array and on the base substrate; data line groups on the base substrate; each data line group includes data lines, each of which is connected to one column of sub-pixels; data selectors on the base substrate and connected to the data line groups in a one-to-one correspondence; data lines in a same data line group are connected to a same data selector; and data selection signal lines, wherein different data selection signal lines output different data selection signals; and different data lines connected to a same data selector correspond to different data selection signal lines, respectively. The display panel provided may effectively reduce the resistance on the data selection signal lines, thereby reducing the delay of the data selection signals and further improving the charging uniformity of sub-pixels.

Abstract: An electric riding lawn mower includes a seat for a user to ride, a main frame to support the seat, a power output assembly including a mowing element to output power to realize mowing function and a first motor to drive the mowing element, a walking assembly to at least drive the electric riding lawn mower to travel in the direction of a first straight line on the ground and a second motor to drive the walking assembly, and a power supply device to power the electric riding lawn mower with a first battery pack, which includes a first battery pack housing and a plurality of battery cells disposed therein. The power supply device is mounted to the main frame. At least one of the first battery packs of the power supply device forms a pluggable connection with the main frame. The battery cells are lithium batteries.

Abstract: Provided is a light-emitting module, including: a first substrate; a plurality of first light-emitting units; a second substrate, having a plurality of apertures corresponding to the plurality of first light-emitting units; and a plurality of second light-emitting units, disposed in a region, where the plurality of apertures are not formed, in a side, away from the first substrate, of the second substrate. An orthographic projection of each aperture on the first substrate covers an orthographic projection of one of the first light-emitting units on the first substrate. Light emitted from the plurality of first light-emitting units is irradiated through the plurality of apertures toward a target direction. An orthographic projection of each second light-emitting unit on the first substrate is not overlapped with the orthographic projection of the first light-emitting unit on the first substrate. Light emitted from the plurality of second light-emitting units is irradiated toward the target direction.

Abstract: A display substrate and a display device. The display substrate includes a base substrate, a light-shielding layer, a gate layer and a source-drain metal layer; the base substrate includes a display area and a peripheral area; the light-shielding layer is located on the base substrate; the gate layer is at a side of the light-shielding layer away from the base substrate; and the source-drain metal layer is at a side of the gate layer away from the light-shielding layer. The display area includes signal lines, and the peripheral area includes a lead wire region and a bonding region; the lead wire region includes lead wires connected to the signal lines, and extend, in the lead wire area, to the bonding area in a first direction; and the lead wires are distributed in the light-shielding layer, the gate layer and the source-drain metal layer.

Abstract: An array substrate includes: a first substrate (10), including a plurality of sub-pixel regions (101) arranged in an array along a row direction (X) and a column direction (Y); a pixel circuit layer, including a plurality of sub-pixel circuits; and a planarization layer (17), provided with a first via hole (170) located in the sub-pixel regions (101), and includes at least one pattern portion (171), the pattern portion (171) includes a plurality of pattern units (171a) arranged in an array along the row direction (X) and the column direction (Y); where the pattern unit (171a) further includes a second bump (1712) located within a central area surrounded by each of the first bumps (1710), and the spacing groove (1711) on a same side of the first bump (1710) and the second bump (1712) is arranged in a non-straight shape.

Abstract: Disclosed is a device and method for reducing combustion cone fallout propensity and stabilizing loss of tobacco from ends. Firstly, the right installation positioning hole is moved rightwards to extend the distance of the separation zone. Meanwhile, the vibration mechanism is redesigned so that it is enabled to move toward the lower right of the material groove body. Therefore, there is enough space to install the separation screen in the separation zone. Finally, the separation screen is installed. The tobacco scraps are separated out when they pass through the separation screen, thus reducing cone dropping when the cigarette burns, stabilizing the amount of dropping tobacco at the end, and improving the smoking experience and recognition of customers with regard to cigarette products.

Abstract: Provided are a method for generating an installed capacity of a power system, a device, a medium, and a product. The method includes: acquiring an expected upper limit of a one-time investment coefficient and an expected lower limit of a new energy consumption rate for a target power system; determining an installed capacity of the target power system by using a power system installed capacity generation model. The installed capacity is defined by an installed capacity upper bound and an installed capacity lower bound, and the power system installed capacity generation model is obtained by training a Convolutional Neural Network (CNN)-Bidirectional Long Short-Term Memory (BiLSTM)-Bidirectional Gated Recurrent Unit (BiGRU) neural network model using a training dataset. The training dataset is established using a multi-objective coronavirus disease optimization algorithm and a wave search algorithm.

Abstract: Provided are a method for regulating a wind-photovoltaic-storage power station based on electricity, green certificate, and carbon price prediction, a device, a medium, and a product.

Abstract: Embodiments of the present disclosure disclose a headphone including a first acoustic wave generation structure, a second acoustic wave generation structure, an acoustic transmission structure, and a filtering structure. The first acoustic wave generation structure and the second acoustic wave generation structure respectively generate a first acoustic wave and a second acoustic wave. The acoustic transmission structure may be configured to transmit the first acoustic wave and the second acoustic wave to a spatial point outside the headphone. The first acoustic wave transmitted to the spatial point interferes with the second acoustic wave transmitted to the spatial point in a first frequency range, and the interference reduces an amplitude of the first acoustic wave in the first frequency range. The filtering structure may be configured to reduce an amplitude of an acoustic wave generated by the headphone in a second frequency range at the spatial point.

Abstract: Provided are a method for power production simulation and configuration optimization based on numerical simulation, a device, and a product.

Abstract: An electric riding lawn mower includes a seat for a user to ride, a main frame to support the seat, a power output assembly including a mowing element to output power to realize mowing function and a first motor to drive the mowing element, a walking assembly to at least drive the electric riding lawn mower to travel in the direction of a first straight line on the ground and a second motor to drive the walking assembly, and a power supply device to power the electric riding lawn mower with a first battery pack, which includes a first battery pack housing and a plurality of battery cells disposed therein. The power supply device is mounted to the main frame. At least one of the first battery packs of the power supply device forms a pluggable connection with the main frame. The battery cells are lithium batteries.

Abstract: A riding mower includes a seat for a user to sit on, a main frame configured to support the seat, a power output assembly configured to mow vegetation, a traveling assembly configured to enable the riding mower to travel, an operating assembly configured to be operated by the user, a control module configured to control the riding mower, and a power supply apparatus configured to supply power to the riding mower. At least a portion of the control module is disposed on the lower side of the seat, and the control module comprises a drive control board for controlling the power output assembly and the traveling assembly, a fuse, and a power supply management module.

Abstract: A ceramic tool material, in particular with piezoelectric effect and a preparation method thereof, and a cutting tool. The ceramic tool material includes the following raw materials by weight: 30-70 parts of matrix material, 30-70 parts of piezoelectric material, 5-10 parts of binder, and 10-20 parts of reinforcing phase and can be made into cutting tools. The cutting tool has a piezoelectric effect and excellent mechanical properties and can convert the cutting force signal into the charge signal during machining. By collecting charge signals, a cutting force can be measured and ceramic cutting tool condition can be monitored. Cutting force measurement function and high mechanical properties are integrated. A ceramic tool material with piezoelectric effect can measure the cutting force on the premise by meeting the cutting performance requirements.

Abstract: A shift register and a driving method therefor, a gate driving circuit and a display device are provided, wherein the shift register includes a pull-up control sub-circuit configured to provide a signal of a first signal terminal or a second signal terminal to a pull-up control node under control of a first input terminal and a second output terminal; the pull-down control sub-circuit is configured to provide a signal of a first power supply terminal or a second power supply terminal to a pull-down node under control of the pull-up control node, the first signal terminal, the second signal terminal, a first clock signal terminal and a second clock signal terminal; the output sub-circuit is configured to supply a signal of a third clock signal terminal to a first output terminal and a signal of a fourth clock signal terminal to the second output terminal.

Abstract: The present disclosure discloses a wearing member. The wearing member includes a housing and a speaker. The housing includes a first connection section and a concave section, and the concave section is connected to one end of the first connection section. The speaker is disposed in the concave section.

Abstract: System and techniques are described herein for processing images to detect expressions of a subject. In one illustrative example, a method of recognizing facial expressions in one or more images includes obtaining, by a computing device, a first image of a person; obtaining expression information based on the first image and an anchor image associated with the person; and determining an expression classification associated with the first image based on the expression information.

Abstract: The present disclosure relates to a headphone, and specifically relates to the technical field of electronic devices. A first speaker includes a first diaphragm. The first speaker cooperates with a core housing to form a first front cavity and a first rear cavity located at two sides of the first diaphragm. The core housing is provided with a first sound outlet for communicating with the first front cavity. The first front cavity includes a first resonant frequency. The first rear cavity includes a second resonant frequency. The second speaker includes a third resonant frequency. A difference between the third resonant frequency and the first resonant frequency and a difference between the third resonant frequency and the second resonant frequency are not less than 2000 Hz.

Abstract: The present disclosure relates to an earphone. The earphone includes a first speaker, a second speaker, and a driving circuit. The driving circuit is configured to drive the first speaker and the second speaker, at least a portion of a frequency band of sound output by the first speaker is lower than a frequency band of sound output by the second speaker. The earphone further includes a high-pass frequency divider disposed between the driving circuit and the second speaker and configured to perform frequency division on an audio driving signal provided by the driving circuit to the second speaker, and a frequency-dividing point of the high-pass frequency divider is set to be not lower than 6 kHz.

Abstract: A ventilation door device for a refrigerator comprises: a frame, having an end plate provided with an opening portion, and having a blocking plate assembly rotatably mounted on the end plate, wherein the blocking plate assembly can rotate between a closed position in which the opening portion is completely closed and an open position in which the opening portion is completely open; a housing, engaging with the frame, wherein a driving chamber is formed between the housing and the frame; and a driving module, wherein the driving module is at least partially held in the driving chamber, and drives the blocking plate assembly to rotate. The frame has a housing engagement portion located on a side edge of the end plate and extending substantially perpendicular to the end plate. The housing is connected to the housing engagement portion of the frame. The blocking plate assembly comprises a blocking plate mounted on the end plate and an elastic component provided on the blocking plate.

Abstract: Provided is a cover plate assembly and a battery cell of a secondary battery. The cover plate assembly includes a cover plate provided with a pole post installation hole and having a first side and a second side opposite to each other along a first direction; a lower insulation plate located on the first side of the cover plate and having a through hole corresponding to the pole post installation hole; and a pole post passing through the through hole and the pole post installation hole. In a second direction perpendicular to the first direction, one of the pole post and the lower insulation plate includes a protrusion portion, and the other of the pole post and the lower insulation plate includes a recess portion matched with the protrusion portion. The pole post further includes a main body portion.