Abstract: A process cartridge includes a developing unit frame, a developing roller rotatably supported by the developing unit frame, a power supply member capable of being electrically connected to the developing roller, and a grounding member capable of switching between a state of being electrically connected to the developing roller and a state of not being electrically connected to the developing roller. With a process cartridge having such a structure, during cleaning operations, separation of the developing roller and a photosensitive drum is unnecessary, and the technical problem of print defects caused by toner transfer from the developing roller onto the photosensitive drum during cleaning operations is simultaneously solved.

Abstract: Maintenance method and maintenance system for smart gas pipeline network are provided. The method includes: determining a preset frequency; controlling the gas metering device in the target region to obtain gas statistical data at the preset frequency; obtaining historical gas consumption data in the target region; determining target demand information of the target region at a future time point; predicting a target difference amplitude of a gas supply and demand difference at the future time point in the target region; for the target region where the target difference amplitude meets a first preset condition, determining a reason for supply and demand difference through a reason model; determining a gas supply adjustment parameter; generating a gas supply adjustment instruction, and sending the gas supply adjustment instruction to a terminal device and the gas metering device to instruct an instruction execution object to perform an adjustment on gas supply.

Abstract: The present application provides an integrated oral care apparatus, including: an uneven housing, a composite member, a medium supply unit, a vector generation unit and a medium delivery member, where the uneven housing has a main extension line and oppositely arranged first end and second end, the main extension line extends from the first end of the uneven housing to the second end of the uneven housing, the vector generation unit connects with the composite member through a vector transmission rod, the vector transmission rod has a medium conveying channel, and the first end of the medium conveying channel is communicated with the composite member; the medium delivery member is configured to bridge between the vector generation unit and the medium supply unit, and has a communication channel, and the communication channel is hermetically coupled between the second end of the medium conveying channel and the medium supply unit.

Abstract: Provided are method and device for non-invasive detection of central arterial pressure and other intraluminal large arterial pressures. Blood flow and vascular elasticity are the main factors affecting pulse waveform acquisition. A midstream airbag strap can be positioned at the same level as an intraluminal large artery in a human body, and an upstream signal channel can be positioned close to the trunk of the human body and thus is very close to the intraluminal large artery so that the influence of the vascular elasticity is minimized. On the basis of the relationship between the pressure in a blood vessel and the pressure of the airbag strap outside the blood vessel under the condition that the width of the midstream airbag strap is sufficient.

Abstract: The present disclosure belongs to the technical field of industrial waste solid recycling, and particularly relates to a resource comprehensive utilization process of red mud, fly ash, steel slag and coal gangue solid wastes. By using the resource comprehensive utilization process, Na2CO3, O2 and a reducing agent are added into industrial waste solids for reaction and then molten iron and liquid slag water are separated; a sodium salt is added into the liquid slag water for reaction to obtain a reaction solution and sediment; the reaction solution is successively introduced into a calcium salt precipitation tank, an aluminum salt precipitation tank and a silicic acid tank and then CO2 is introduced into the above tanks for acidification reaction, respectively, and a calcium salt, an aluminum salt, a silicic acid and an alkaline solution are obtained after filtration in sequence.

Abstract: A leakage apparatus, a positioning method, and an electronic device are provided. The leakage apparatus includes at least one positioning module and at least one non-positioning module, at least one positioning area being provided in the positioning module; where the positioning module is connected with the non-positioning module, the positioning area in the positioning module is configured to leak a positioning signal, a range obtained by superimposing a coverage area of the positioning signal leaked by each positioning module in a longitudinal direction covers an area where the leakage apparatus is located, the longitudinal direction referring to an extension direction of the leakage apparatus.

Abstract: A method and apparatus for adjusting a boot option of a server, a non-volatile readable storage medium, and an electronic apparatus are provided. The method for adjusting a boot option of a server includes: invoking, in response to detecting failure of an adjustment operation executed for a boot option of a target server, a first detection parameter corresponding to the target server; detecting a connection state of a universal serial bus (USB) port of the target server according to the first detection parameter; and adjusting, in response to determining that the USB port connection state is used to indicate that a target USB port connected to a target USB device is provided on the target server, a boot option of a USB device to a target boot option of the target server.

Abstract: The present invention provides a method for accurately measuring live sperm morphology, including the following steps: S11. acquiring an image including a plurality of sperm cells; S12. detecting the sperm cells in the image, and segmenting a head, a midpiece, and a tail of each detected sperm cell; and S13. calculating morphological parameters of each sperm cell based on a segmentation result. For the method for accurately measuring live sperm morphology of the present invention, an image of sperm cells is acquired, a head, a midpiece, and a tail of each sperm cell are segmented through image processing, and morphological parameters of each sperm cell are calculated based on a segmentation result. Morphological parameters of live sperm cells can be comprehensively and accurately obtained for analysis or selection.

Abstract: A display panel includes an integrated circuit substrate, a light-emitting device layer and a second electrode. The light-emitting device layer includes light-emitting devices disposed respectively in light-emitting areas and insulating layers disposed respectively in insulating barrier areas, and each insulating barrier area is disposed between two adjacent light-emitting areas. Each insulating layer has opposite ends respectively connected to the second electrode and the integrated circuit substrate and each light-emitting device is surrounded by several insulating layers, so that the several insulating layers, the second electrode and the integrated circuit substrate together form a closed accommodating chamber for accommodating the light-emitting device.

Abstract: An inspection method and system of an underground pipeline corridor based on a smart gas regulatory IoT. The inspection method is executed by a gas company management platform of a system for safe maintenance of the underground pipeline corridor based on the smart gas regulatory IoT, and the method includes: determining, based on a safety factor of an inspection region, a mandatory machine inspection region; generating regional planning data based on the mandatory machine inspection region, and the region inspection type of the remaining region; determining a target pipeline corridor region and an inspection instruction based on the regional planning data; determining, based on the safety factor and/or a regional importance degree of the inspection region, a monitoring frequency of an environmental monitoring device and a supervisory equipment in the inspection region, and adjusting the monitoring frequency based on a corresponding control instruction.

Abstract: The present application provides a data caching method and a chip. The chip includes a plurality of video data sub-processors for caching different data types of video data respectively and a data prefetcher. The method includes: determining target video data according to identification information of a video data sub-processor of to-be-cached video data; determining a data storage address of the target video data in an external memory; and obtaining, by the data prefetcher, corresponding target video data from the external memory according to the data storage address. The present application may improve the data caching efficiency, reduce the data access, improve the computational efficiency of video data processing, and reduce the power consumption.

Abstract: An indirect evaporative cooling air conditioner is provided, which includes a housing, multiple partition plates located in the housing and at least two heat exchangers arranged side by side. The multiple partition plates and the at least two heat exchangers separate the housing into multiple indoor air flow passages and multiple outdoor air flow passages, each heat exchange has a first heat exchange flow passage and a second heat exchange flow passage crosswise and independently arranged, the indoor air flow passages are in communication with the first heat exchange flow passages to form an indoor circulation passage, the outdoor air flow passages are in communication with the second heat exchange flow passages to form an outdoor circulation passage, and the fluid in the indoor circulation passages exchange heat with the fluid in the outdoor circulation passages through the at least two heat exchangers.

Abstract: A method for processing information includes: performing any of followings when there is no node event: receiving a target request, and converting a local node state of a node into a first state, the target request being used for initiating a target information synchronization task, and the first state being used for characterizing that the node is executing the target information synchronization task as a remote node; and transmitting the target request, and converting the local node state of the node into a second state, the second state being used for characterizing that the node is executing the target information synchronization task as a primary writing node. The controller cluster is configured to unidirectionally transmit the target request between the primary writing node and the remote node in a same domain according to a set communication direction.

Abstract: The present application provides techniques for generating live streams. The techniques comprise obtaining motion attribute information and a set of virtual scene types associated with a target live streaming room; generating, based on the motion attribute information and each of the set of virtual scene types, a plurality of live streams to be played that correspond to the set of virtual scene types; receiving a live stream viewing request sent from an audience client device, where the live stream viewing request comprises a user attribute identifier; determining a target live stream among the plurality of live streams based on the user attribute identifier; and returning, to the audience client device, the target live stream for display on the audience client device.

Abstract: The present application provides a data caching method and a chip. The chip includes a plurality of video data sub-processors for caching different data types of video data respectively and a data prefetcher. The method includes: determining target video data according to identification information of a video data sub-processor of to-be-cached video data; determining a data storage address of the target video data in an external memory; and obtaining, by the data prefetcher, corresponding target video data from the external memory according to the data storage address. The present application may improve the data caching efficiency, reduce the data access, improve the computational efficiency of video data processing, and reduce the power consumption.

Abstract: The method includes performing Bluetooth authentication with a terminal based on Bluetooth authentication information; after the Bluetooth authentication with the terminal succeeds, obtaining RFID authentication information, where the RFID authentication information includes label information and authorization information of an RFID label, and the authorization information is used to indicate an association relationship between the RFID label and the terminal; and performing RFID authentication based on the RFID authentication information, and being in a controllable state after the RFID authentication succeeds.

Abstract: This application discloses an avatar livestreaming method. The method includes monitoring a selection of an avatar as an online streamer by a user; starting, by a live process, a rendering process in response to detecting the selection; creating, by the rendering process, a shared texture configured to enable the live process to obtain a rendering result; creating, by the live process, a shared memory through which the live process and the rendering process exchange data except the rendering result; collecting in real time, by the live process, facial data indicating movements or expressions associated with a face or a head of the user and synchronizing the facial data to the rendering process; rendering, by the rendering process, the avatar in the shared texture based on the facial data; and obtaining, by the live process, the rendering result in the shared texture.

Abstract: Embodiments of the disclosure provide an optical sensing system for two-dimensional (2D) environmental sensing and an optical sensing method for the optical sensing system. The optical sensing system includes a rotary base and a one-dimensional (1D) optical sensing apparatus supported by the rotary base. The 1D optical sensing apparatus includes an optical source configured to emit optical signals, a 1D MEMS scanner configured to direct the optical signals towards an environment surrounding the optical sensing system, and a receiver configured to receive at least a portion of the optical signals reflected from the environment. The rotary base is configured to drive the 1D optical sensing apparatus to rotate around a first axis to scan the optical signals in a first dimension and the 1D MEMS scanner is configured to independently rotate around a second axis to scan the optical signals in a second dimension in the 2D environmental sensing.

Abstract: Techniques are disclosed for real-time mapping in a movable object environment. A real-time mapping system can include at least an unmanned aerial vehicle (UAV), comprising a propulsion system, a main body coupled to the propulsion system and a payload assembly coupled to the main body via a payload port, wherein the payload assembly is configured to couple to the payload port and support a scanning sensor and a positioning sensor.