Abstract: A power supply system and a grid connection control method. The power supply system includes a power supply, an inverter, a transformer, a power station collection module, and an inverter collection control circuit. The inverter collection control circuit is configured to obtain an amplitude value and a frequency of an output voltage of the inverter, obtain an inverter power adjustment signal based on the amplitude value and the frequency of the output voltage, and control, based on the power station power adjustment signal and the inverter power adjustment signal, the inverter to output a target output power. Additionally, an output power of the inverter may be adjusted by using the power station collection module and the inverter collection control circuit. A structure is simple, and a control method is simple. This improves control precision and adjustment efficiency, reduces control time, and reduces control costs.

Abstract: Embodiments of the present disclosure provide a solution for point cloud coding. A method for point cloud coding is proposed. The method comprises: determining, during a conversion between a current PC sample of a point cloud sequence and a bitstream of the point cloud sequence, one or multiple reference PC samples for the current PC sample, wherein at least one reference frame comprising the one or multiple reference PC samples and a current frame comprising the current PC sample are in a GOF; and performing the conversion based on the one or multiple reference PC samples.

Abstract: A tunneling system includes a bolter miner, a bolter-integrated transportation machine, a transfer machine, a self-moving tail and a belt conveyor. The bolter miner includes a rack, a cutting device, and a bolt support device. The bolt support device includes a lifting assembly, a work platform, a first drilling frame assembly and a stabilizing assembly. The lifting assembly is arranged between the rack and the work platform. The first drilling frame assembly and the stabilizing assembly are arranged on the work platform. The bolter-integrated transportation machine is arranged behind the bolter miner and configured to transfer coal rock cut and conveyed by the bolter miner. One end of the transfer machine is connected with the bolter-integrated transportation machine, and the other end of the transfer machine is lapped with the self-moving tail. The belt conveyor is arranged behind the self-moving tail.

Abstract: The display panel comprises: a plurality of pixels arranged in an array. Each pixel comprises a plurality of subpixels. The plurality of pixels arranged in an array comprise: a plurality of pixel rows. Each pixel row comprises a plurality of subpixels arranged in a first direction. The plurality of pixel rows extend in a second direction. The first direction intersects with the second direction. The display panel comprises: a first array substrate and a first opposing substrate arranged opposite to each other, and a first liquid crystal layer located between the first array substrate and the first opposing substrate. The first array substrate comprises: a plurality of first driving transistors arranged in an array. At least one pixel is arranged between two adjacent first driving transistors in the first direction. The first opposing substrate comprises: a plurality of light shielding portions in one-to-one correspondence to the first driving transistors.

Abstract: Disclosed are a polymorph of (S)-1-(2-((S)-3-cyclopropyl-5-isopropyl-2,4-dioxoimidazolidin-1-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)pyrrolidine-2-carboxamide, a composition comprising the polymorph, a use method therefor and a preparation method therefor.

Abstract: The present invention provides a method for preparing an aerogel based on plasticizing and foaming with solvent, and the aerogel material is prepared through plasticization with solvent and generation of in-situ bubbles. The method solves the difficult problem that the non-polymer is difficult to realize thermoplastic foaming, and has wide applicability. In addition, a lot of foaming agents can be uses for this method, and this method is easy to implement, and does not require a special drying process, so that the industrialization development of the porous aerogel is greatly promote.

Abstract: A method of video processing includes performing a conversion between a video unit of a video and a coded representation of the video using at least a video picture. Only one of a sub-picture coding mode or a resolution-changing coding mode is enabled for the video unit. The sub-picture coding mode is a mode in which the video picture is divided into multiple sub-pictures, and the resolution-changing coding mode is a mode in which a resolution of the video picture is adjusted during the conversion.

Abstract: A display method is provided. The display method includes providing a display panel having a plurality of subpixels, a respective subpixel of the plurality of subpixels including a first area, n1 number of second areas, and n2 number of third areas, the first area being between the n1 number of second areas and the n2 number of third areas, n1?1, and n2?1; for displaying a first frame of image, controlling light emission of the respective subpixel to be limited in the first area, m1 number of the n1 number of second areas, and m2 number of the n2 number of third areas; and for displaying a second frame of image, controlling light emission of the respective subpixel to be limited in the first area, ml? number of the n1 number of second areas, and m2? number of the n2 number of third areas.

Abstract: Embodiments of the present disclosure provide a solution for point cloud coding. A method for point cloud coding is proposed. The method comprises: determining, during a conversion between a current point cloud (PC) sample of a point cloud sequence and a bitstream of the point cloud sequence, one or multiple reference PC samples for the current PC sample; and performing the conversion based on the one or multiple reference PC samples.

Abstract: A tunnel tunneling system includes a bolter miner, a bolter-integrated transportation machine, a transfer machine, a self-moving tail and a belt conveyor. The bolter miner includes a rack, a cutting device, a drilling device and a control device. The cutting device is arranged on the rack and is swingable in an up-down direction, and has a lowest swing angle and a highest swing angle. The drilling device is arranged on the rack, and includes a drilling rig and a sensor. The drilling rig is configured to drill a tunnel floor and/or a tunnel roof, and the sensor is configured to monitor a set parameter of the drilling rig and generate a monitoring data signal when the drilling rig is drilling. The control device is configured to receive and analyze the monitoring data signal.

Abstract: A wireless device may receive one or more messages comprising configuration parameters of a cell. The configuration parameters may indicate a first bandwidth part (BWP) of the cell for wireless devices having reduced capabilities, a first time-division duplex (TDD) pattern for the first BWP, and a second TDD pattern applicable to BWPs of the cell. The wireless device may further select the first TDD pattern based on the wireless device having the reduced capabilities and based on the first BWP being an active BWP of the cell. The wireless device may also determine a format of a symbol based on the first TDD pattern. Based on the format, the wireless device may communicate via the first BWP during the symbol.

Abstract: A wireless device may receive, via a first control resource set (coreset), of a cell, associated with a first physical cell index (PCI), a first downlink control information (DCI) comprising a first downlink assignment index (DAI) field with a first value. The wireless device may receive, via a second coreset, of the cell, associated with a second PCI, a second DCI comprising a second DAI field with a second value. The first value and the second value may be in an ascending order of the first PCI and the second PCI. The wireless device may transmit a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook comprising a first acknowledgement information associated with the first DCI and a second acknowledgement information associated with the second DCI.

Abstract: Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video picture that includes one or more tiles and one or more rectangular slices and a bitstream of the video according to a rule. The rule specifies that, for iteratively determining information about the one or more rectangular slices, a variable indicating a tile index is updated only for slices having indices that are smaller than a value equal to a number of slices in the video picture minus 1.

Abstract: A wireless device receives one or more radio resource configuration messages indicating periodic radio resources of a first configured grant. The wireless device transmits, via resource occasions of the periodic radio resources, one or more first code block groups of a first transport block, and one or more second code block groups of a second transport block. One or more downlink control information are received indicating negative acknowledgements for: the one or more first code block groups and the one or more second code block groups. The wireless device retransmits, via a first radio resource occasion of the periodic radio resources of the first configured grant, the one or more first code block groups and the one or more second code block groups.

Abstract: A wireless device may receive downlink control information (DCI) scheduling physical uplink shared channel (PUSCH) transmissions for a cell. The DCI may comprise a first phase tracking reference signal-demodulation reference signal (PTRS-DMRS) association field, a second PTRS-DMRS association field, and a sounding reference signal (SRS) resource set field. A first value of the SRS resource set field may indicate the PUSCH transmissions are based on the first PTRS-DMRS association field, and a second value of the SRS resource set field may indicate the PUSCH transmissions are based on both the first PTRS-DMRS association field and the second PTRS-DMRS association field. The wireless device may transmit the PUSCH transmissions based on the SRS resource set field.

Abstract: A resource allocation method includes sending, by a network device, first information to user equipment, where the first information is used to indicate uplink resources corresponding to autonomous uplink transmission performed by the user equipment; and sending, by the network device, second information to the user equipment, where the second information is used to indicate a resource that is in the uplink resources and that is actually used by the user equipment to perform autonomous uplink transmission. The uplink resources corresponding to autonomous uplink transmission are allocated while resource utilization is ensured.

Abstract: A spinning-drawing-winding device for industrial polylactic-acid fiber includes a double-surface oiling mechanism, a filament shearing-suctioning device, a pre-interlacer and a splitting filament roller disposed in sequence according to a production process; a drawing-winding device cooperates with a spinning device, a tow passing from the spinning device through the double-surface oiling mechanism, the filament shearing-suctioning device, and the pre-interlacer in sequence until the tow is conveyed to the splitting filament roller; the drawing-winding device and the spinning device are configured as a parallel configuration, so that the tow between the spinning device and the splitting filament roller are arranged in a vertical direction and is tangential to the splitting filament roller, and therefore the tow is without deflection, thereby avoiding damaging the tow due to a friction caused by a higher deflection.

Abstract: Wireless devices may communicate via a plurality of transmission and/or reception beams. Control information may be used to indicate one or more beams to be used by wireless devices. A configuration message may indicate a portion of the control information corresponding to a particular wireless device of the wireless devices.

Abstract: A picture display method, an apparatus, and a medium are provided. The picture display method includes: obtaining a first picture, and the first picture including a first region and a second region arranged in a first direction; and displaying a second picture when a first size of the first picture in the first direction satisfies a predetermined condition, and the second picture including the first region and the second region arranged in a second direction.

Abstract: In general, the present disclosure is directed to a hand-held surface cleaning device that includes a relatively compact form-factor to allow users to store the same in a nearby location (e.g., in a drawer, in an associated charging dock, on a table top) for easy access to perform relatively small cleaning tasks that would otherwise require retrieving a full-size vacuum from storage. A hand-held surface cleaning device consistent with aspects of the present disclosure includes a body (or body portion) with a motor, power source and dust cup disposed therein. The body portion also functions as a handgrip to allow the hand-held surface cleaning device to be operated by one hand, for example.