Abstract: Methods, system and apparatus for video processing are described. One example method of processing video data includes performing a conversion between a current block of a video and a bitstream of the video. Samples of the current block are represented in the bitstream using coefficients that are arranged according to a rule responsive to locations of the samples of the current block.

Abstract: Methods, systems and devices for video coding using sample string vectors are described. An example method of video processing includes determining, for a conversion between a video including a current block and a bitstream of the video, an availability of a block vector of one or more non-adjacent neighboring blocks of the current block for a prediction of a block vector of the current block according to a rule, and performing, based on the determining, the conversion, wherein the rule specifies a pre-defined order for checking the one or more non-adjacent neighboring blocks.

Abstract: Methods, systems and devices for sample string processing in intra coding are described. An example method of video processing includes determining, for a conversion between a video comprising a current block and a bitstream of the video, whether a first sample string of the current block forms a rectangle, and performing, based on the determining, the conversion, wherein the determining is based on a position and a length of the first sample string.

Abstract: A video image processing method including determining a current image block, in response to a size of the current image block meeting a preset condition, skipping a temporal motion vector prediction (TMVP) operation so that a temporal candidate motion vector of the current image block is not determined according to the TMVP operation, and encoding the current image block. The TMVP operation includes determining a relevant block of the current image block in a temporal neighboring image, and determining the temporal candidate motion vector of the current image block according to a motion vector of the relevant block.

Abstract: Methods, system and apparatus for video processing are described. One example method of processing video data includes performing a conversion between a current block of a video and a bitstream of the video according to a rule. The rule specifies that whether a transform skip mode is enabled is determined based on coding information of the current block. The transform skip mode is a coding mode in which a transform is skipped on a prediction residual of a video block.

Abstract: Methods, system and apparatus for video processing are described. One example method of processing video data includes performing a conversion between a current block of a video and a bitstream of the video according to a rule. The rule specifies that coded information of the current block determines usage of coefficient reordering by which coefficients of the current block parsed from the bitstream are reordered prior to applying a dequantization process, an inverse transform process, or a reconstruction process.

Abstract: A text input method and apparatus based on a virtual keyboard are provided, which relate to the field of human-computer interaction, and resolve a problem of how to complete text input based on the virtual keyboard. The method includes an electronic device that detects key points of a first hand based on an image including the first hand after obtaining the image including the first hand, and projects a virtual keyboard on the first hand based on the key points of the first hand. Further, after obtaining an image including the first hand and a finger of a second hand, the electronic device identifies, based on the image including the first hand and the finger of the second hand, a contact state or a pressing state between the finger of the second hand and the first hand.

Abstract: A screen interaction method and apparatus for an electronic device are disclosed, to determine a target user from a plurality of users and control a picture displayed on a screen of the electronic device based on an action of the target user. The method includes: obtaining, by using a camera, an image including the plurality of users in front of a screen, recognizing respective actions of the plurality of users in the image based on the image including the plurality of users, comparing the actions of the plurality of users with a preset action, determining a user who performs an action matching the preset action as the target user, and controlling a picture displayed on the screen of the electronic device based on the action of the target user.

Abstract: Embodiments of this application provide a middle frame, a battery cover, and an electronic device. The electronic device may include a mobile or fixed terminal with an edge frame or a housing, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a POS machine, a personal digital assistant (PDA), an event data recorder, a wearable device, a virtual reality device, a wireless USB flash drive, a Bluetooth speaker/headset, or a vehicle-mounted device. Two types of materials: ceramics and plastic, are used to form a middle frame and a battery cover, thereby reducing a weight of the electronic device. This resolves a problem that is of a relatively large weight of an existing electronic device and that is caused when a pure ceramic middle frame and a pure ceramic battery cover are used in the electronic device.

Abstract: Embodiments of this application provide a middle frame, a rear cover, and fabrication methods thereof, and an electronic device. The electronic device may include a mobile or fixed terminal with a frame or a housing, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a POS terminal, a personal digital assistant (PDA), an event data recorder, a wearable device, a virtual reality device, a wireless USB flash drive, a Bluetooth speaker/headset, or a vehicle-mounted device. Ceramics and fiber reinforced composite are used to form frames of a rear cover and a middle frame, to reduce thicknesses of a ceramic outer housing and a ceramic outer frame, thereby reducing a weight of the electronic device.

Abstract: Presented here is a system and method for creating easy-to-understand notifications of the vehicle state. The notification can be visual or can be auditory and can indicate to the user the vehicle state even when the user's attention is directed elsewhere. The indication can serve to attract the user's attention before more involved information is presented to the user, such as text, or the indication can serve to communicate to the user the vehicle state in an easy-to-understand way such as using color-coded displays or audio indications. The intensity of the indication can be adjusted based on the likelihood that indication will be perceived by the user by, for example, measuring ambient light and/or ambient noise. Reducing the intensity of the indication conserves energy of an energy source associated with the vehicle.

Abstract: Presented here is a system and method for creating easy-to-understand notifications of the vehicle state. The notification can be visual or can be auditory and can indicate to the user the vehicle state even when the user's attention is directed elsewhere. The indication can serve to attract the user's attention before more involved information is presented to the user, such as text, or the indication can serve to communicate to the user the vehicle state in an easy-to-understand way such as using color-coded displays or audio indications. The intensity of the indication can be adjusted based on the likelihood that indication will be perceived by the user by, for example, measuring ambient light and/or ambient noise. Reducing the intensity of the indication conserves energy of an energy source associated with the vehicle.

Abstract: Disclosed are a pentacyclic triterpene compound as shown in general formula (I) and a preparation method therefor. The compound has an effective antagonistic effect on FXR receptors.

Abstract: A hydrogen permeation membrane is provided that can include a carbon-based material (C) and a ceramic material (BZCYT) mixed together. The carbon-based material can include graphene, graphite, carbon nanotubes, or a combination thereof. The ceramic material can have the formula BaZr1-x-y-zCexYyTzO3-?, where 0?x?0.5, 0?y?0.5, 0?z?0.5, (x+y+z)>0; 0???0.5, and T is Yb, Sc, Ti, Nb, Ta, Mo, Mn, Fe, Co, Ni, Cu, Zn, Ga, In, or a combination thereof. In addition, the BZYCT can be present in the C-BZCYT mixture in an amount ranging from about 40% by volume to about 80% by volume. Further, a method of forming such a membrane is also provided. A method is also provided for extracting hydrogen from a feed stream.

Abstract: Disclosed are a pentacyclic triterpene compound as shown in general formula (I) and a preparation method therefor. The compound has an effective antagonistic effect on FXR receptors.

Abstract: A hydrogen permeation membrane is provided that can include a carbon-based material (C) and a ceramic material (BZCYT) mixed together. The carbon-based material can include graphene, graphite, carbon nanotubes, or a combination thereof. The ceramic material can have the formula BaZr1-x-y-zCexYyTzO3-?, where 0?x?0.5, 0?y?0.5, 0?z?0.5, (x+y+z)>0; 0???0.5, and T is Yb, Sc, Ti, Nb, Ta, Mo, Mn, Fe, Co, Ni, Cu, Zn, Ga, In, or a combination thereof. In addition, the BZYCT can be present in the C-BZCYT mixture in an amount ranging from about 40% by volume to about 80% by volume. Further, a method of forming such a membrane is also provided. A method is also provided for extracting hydrogen from a feed stream.

Abstract: A system for multi-chassis interconnection and a method for chassis connection are disclosed. The system includes at least three chassis; each chassis includes a first switch fabric unit (SFU) and a second SFU; the first SFU in the first chassis is connected to the first SFU in other chassis; and the second SFU in the second chassis is connected to the second SFU in other chassis. In the embodiments of the present invention, different SFUs in the chassis of the multi-chassis interconnection system are connected to different main chassis, thus overcoming the technical defect in the prior art that other chassis in the multi-chassis interconnection system are unable to exchange data when the main chassis is faulty. Therefore, in the embodiments of the present invention, other chassis in the multi-chassis interconnection system can still exchange data normally when the main chassis is faulty.

Abstract: A system for multi-chassis interconnection and a method for chassis connection are disclosed. The system includes at least three chassis; each chassis includes a first switch fabric unit (SFU) and a second SFU; the first SFU in the first chassis is connected to the first SFU in other chassis; and the second SFU in the second chassis is connected to the second SFU in other chassis. In the embodiments of the present invention, different SFUs in the chassis of the multi-chassis interconnection system are connected to different main chassis, thus overcoming the technical defect in the prior art that other chassis in the multi-chassis interconnection system are unable to exchange data when the main chassis is faulty. Therefore, in the embodiments of the present invention, other chassis in the multi-chassis interconnection system can still exchange data normally when the main chassis is faulty.