Abstract: The present disclosure relates to air fryer, comprising a main body, the main body is provided with a first cooking cavity and a second cooking cavity arranged at intervals up and down. By arranging the first cooking cavity and the second cooking cavity in the main body at intervals up and down, not only can two types of food be cooked simultaneously to improve food cooking efficiency, but also the lateral volume of the air fryer can be reduced, the space occupancy of the air fryer can be lowered, and the space utilization rate can be improved. Meanwhile, the two cooking cavities are hermetically isolated, which can also avoid the interference between the air intake and air outlet of the first cooking cavity and the second cooking cavity, effectively improve the thermal circulation efficiency in the first cooking cavity and the second cooking cavity.

Abstract: A combined impeller stirring device includes a stirred tank, a stirring shaft disposed within the stirred tank, and at least one mixing impeller unit disposed on the stirring shaft. The mixing impeller unit includes a first nested mixing impeller and a second nested mixing impeller. The first nested mixing impeller includes two helical blades and two fixed shafts. The two fixed shafts are arranged in a staggered manner and separately fixedly connected to the stirring shaft. Two ends of a helical blade are connected to the two fixed shafts, respectively such that the two helical blades are arranged in rotational symmetry. The second nested mixing impeller is located between the two fixed shafts and fixedly connected to the stirring shaft.

Abstract: A downwind starting method for a permanent magnet synchronous motor without a back electromotive force sampling circuit includes utilizing a back electromotive force generated by a rotating magnetic field that is generated through downwind rotation of the permanent magnet rotor before starting the permanent magnet synchronous motor cutting the plurality of phase windings of the stator assembly to control a lower switch transistor of one of the phase windings to be turned on while turning off lower switch transistors of the remaining phase windings, detecting whether a current is generated, and recording time when the current is generated; repeating the above operations until time when a current is generated for each phase winding is obtained; summing the time when the current is generated for each phase winding to obtain an electrical cycle, and calculating an electrical frequency of the motor by using the electrical cycle; and utilizing the electrical frequency and the time when the current is generated for

Abstract: A method, device and system for updating a map of an unloading area (UA) of an open pit mine, which relate to the technical field of open pit mines. The method includes: acquiring one or more coordinates of one or more first preset positions of auxiliary operation equipment (11) during an operation (302), wherein the auxiliary operation equipment (11) trims a retaining wall (L) that acts as a physical boundary of the unloading area (UA) during the operation, and during the operation of the auxiliary operation equipment (11), each first preset position is located within the unloading area (UA); determining a first coordinate set (304), the first coordinate set (304) including coordinates among the one or more coordinates located outside of a first map of the unloading area (UA); and according to the first coordinate set (304), updating the first map into a second map (306).

Abstract: A display device, a display panel, and a manufacturing method thereof are proposed. The display panel includes a substrate, a first insulation layer, a first electrode layer, a pixel definition layer, a light-emitting function layer and a second electrode.

Abstract: A display panel includes: a drive backplane; a first electrode layer on a surface of the drive backplane, and including first electrodes in an array; a leakage cut-off layer on a same surface of the drive backplane with the first electrode layer, and including first and second defining layers stacked in a direction away from the drive backplane, the first defining layer being provided with first openings exposing at least a part of areas of the respective first electrodes in one-to-one correspondence, and the second defining layer being provided with second openings surrounding the first openings at positions corresponding to the first openings; a light-emitting function layer covering the leakage cut-off layer and the at least a part of areas of the first electrodes; a second electrode, covering the light-emitting function layer; and a color film layer on a side of the second electrode away from the drive backplane.

Abstract: A driving apparatus, an image collection module, and a method for voltage regulation are provided. The driving apparatus includes: a control module, a driving module, and a voltage regulation unit. The control module is configured to acquire displacement information of an image collection apparatus, transmit a driving current instruction to the driving module based on the displacement information, and transmit a voltage regulation signal to the voltage regulation unit based on the displacement information; the driving module is configured to generate a driving current based on the driving current instruction; and the voltage regulation unit is configured to regulate a voltage inputted from a power supply to a driving voltage matching the driving current based on the voltage regulation signal, and transmit the driving voltage to the driving module, so that the driving module drives a motor of image collection apparatus through the driving current and the driving voltage.

Abstract: A position sensing system, a method for acquiring a position sensing signal and an electronic device are provided. The position sensing system is provided with a first position sensing element and at least one second position sensing element. A first position sensing signal outputted by the first position sensing element in response to a predetermined signal is used as a correction signal for a second position sensing signal outputted by the second position sensing element, and the signal processing module corrects the second position sensing signal outputted by at least one of the second position sensing element based on the first position sensing signal and determines a target sensing signal based on at least one corrected second position sensing signal.

Abstract: High concentration polymer slurries contain up to 70 weight percent active polymer in a hydrophobic solvent base treated with suspending agents, dispersants, and thinning agents. The slurries are prepared by mixing a solid polymer with an invert polymer emulsion without the need for specialized field equipment. These slurries provide increased polymer concentration and improved dispersibility of solid polymer or other hydrophilic colloids. The resulting formulations offer technical advantages, including enhanced efficiency, ease of handling, and cost-effectiveness.

Abstract: The present invention relates to the technical field of pyrolysis technology, and specifically discloses a compact domestic waste pyrolysis apparatus featuring an integrated multi-chamber secondary combustion chamber. The apparatus consists of a pyrolysis furnace, which incorporates both a pyrolysis chamber and a secondary combustion chamber. The upper section of the pyrolysis chamber is provided with a communication hole that connects to the secondary combustion chamber. In this apparatus, the pyrolysis chamber and the secondary combustion chamber are closely integrated. The generated pyrolytic gas directly enters the secondary combustion chamber, effectively preventing coking and significantly reducing the frequency of failures. The secondary combustion chamber absorbs radiant heat from the pyrolysis chamber, maintaining its temperature consistently above 850° C., which is conducive to the complete combustion of the pyrolytic gas and maximizes thermal energy release.

Abstract: Disclosed is a noise vibration and harshness (NVH) control method of a tandem motor system, which improves the NVH performance of a tandem motor by installing rotors of two motors in a misaligned manner, and calculates and finds an optimal misalignment angle between the two rotors through an optimization method, thereby minimizing an amplitude of a resultant cogging torque of the tandem motor to the greatest extent. The rotors adopt segmented skew structures. Additionally, the performance of the tandem motor is further enhanced through a multi-motor vector control technology and a phase-shifted pulse width modulation (PWM) control technology.

Abstract: A display device, a display panel, and a manufacturing method thereof are proposed. The display panel includes a substrate, a first insulation layer, a first electrode layer, a pixel definition layer, a light-emitting function layer and a second electrode.

Abstract: This application provides network-based device connection methods and devices. One method includes: receiving a first broadcast message from a second device and a second broadcast message from a third device, in response to determining that a quantity of available Wi-Fi connections of the second device is not greater than zero, and the second device is not connected to the first device through Wi-Fi, determining, based on connected device information of the second device and available Wi-Fi connection information of the third device, that the third device is connected to the second device through Wi-Fi and that a quantity of available Wi-Fi connections of the third device is greater than zero, and establishing a Wi-Fi link between the first device and the third device for the third device to forward the first packet received from the first device to the second device through a Wi-Fi link between the third device and the second device.

Abstract: This application relates to the field of photovoltaic technologies, and in particular, to a welding ribbon carrier, a welding ribbon carrier assembly, a welding device, and a welding method, including: a carrier body, where the carrier body is configured to wind a welding ribbon, the carrier body has a rotational degree of freedom, the carrier body is provided with at least one operating surface, the operating surface is configured as a planar structure, the welding ribbon is routed across the operating surface, the operating surface is provided with several adsorption holes, and the welding ribbon is adsorbed and fixed by applying negative pressure to the adsorption holes. This resolves the technical problem of a complex structure of the welding device in the existing technology, and achieves a technical effect of simplifying the structure of the welding device.

Abstract: A driving apparatus, an image collection module, and a method for voltage regulation are provided. The driving apparatus includes: a control module, a driving module, and a voltage regulation unit. The control module is configured to acquire displacement information of an image collection apparatus, transmit a driving current instruction to the driving module based on the displacement information, and transmit a voltage regulation signal to the voltage regulation unit based on the displacement information; the driving module is configured to generate a driving current based on the driving current instruction; and the voltage regulation unit is configured to regulate a voltage inputted from a power supply to a driving voltage matching the driving current based on the voltage regulation signal, and transmit the driving voltage to the driving module, so that the driving module drives a motor of image collection apparatus through the driving current and the driving voltage.

Abstract: The present disclosure relates to the technical field of electrical device state monitoring, and particularly discloses an open-phase fault monitoring system, in which a relay communication unit is configured with an MCU as a central control processing unit, and an external ADC realizes high-speed A/D conversion for a plurality of signals; a timing function is realized by a GNSS&RTC of the relay communication unit, a data interaction function is realized by a LORA module, and data is sent to a background industrial personal computer based on a designed sampling frequency. The system of the present disclosure has the advantages of small volume, high precision, low cost, easy installation and the like, and realizes real-time monitoring and accurate identification of a line open-phase fault of an auxiliary power supply system in a nuclear power plant.

Abstract: The present disclosure provides a display substrate and a display apparatus, and belongs to the field of display technology. The display substrate includes a base substrate, a plurality of pixel units arranged in an array on the base substrate, and a color filter layer on a side of the pixel units facing away from the base substrate. Each pixel unit includes a plurality of pixel drive circuits and a plurality of light-emitting devices on the base substrate, with each light-emitting device electrically connected to one of the pixel drive circuits to form one subpixel. The color filter layer includes a plurality of color filter blocks, with each color filter block corresponding to one of the light-emitting devices.

Abstract: An array substrate is provided. The array substrate includes a cathode layer extending across a plurality of subpixel regions and an inter-subpixel region. The cathode layer includes a plurality of first ring structures respectively in a plurality of first regions of the inter-subpixel region, a respective first region of the plurality of first regions surrounding a respective subpixel region of the plurality of subpixel regions. A respective first ring structure of the plurality of first ring structures protrudes away from a base substrate, forming a ridge.

Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.

Abstract: A display panel includes: a drive backplane; a first electrode layer including a plurality of first electrodes distributed in an array, where the first electrode includes a flat middle part and an edge part surrounding the middle part, and the edge part includes a horizontal part surrounding the middle part and a climbing part connected between the middle part and the horizontal part; a leakage cut-off layer provided on a same surface of the drive backplane with the first electrode layer, and including a first defining layer and a second defining layer stacked in a direction facing away from the drive backplane, where the first defining layer is provided with first openings exposing the respective first electrodes in one-to-one correspondence; a light-emitting function layer at least partially covering the leakage cut-off layer and the middle part of the first electrode; and a second electrode covering the light-emitting function layer.