Abstract: The present disclosure provides a culture method of adherent cells generating a tight junction structure and a product thereof. The culture method includes: inoculating adherent cells resuspended in a culture medium onto a bottom support liquid in a culture container for culture to obtain a membranous cell sheet, where the bottom support liquid has higher density than the culture medium, and is not miscible with the culture medium. According to the culture method in the present disclosure, the bottom support liquid is applied to the culture of the adherent cells for the first time, the formation of a tight junction between the adherent cells and the secretion of a large number of extracellular matrices can be promoted so as to form a membranous cell sheet having high cell density, and in vivo tissue structures are well simulated.

Abstract: This application discloses a connecting buckle with a safety switch. The connecting buckle includes a male connecting piece, a female connecting piece and a buckling apparatus; the buckling apparatus includes a buckling piece, the buckling piece is arranged in match with a sliding frame arranged on the male connecting piece, a rotating shaft is arranged on the buckling piece; the rotating shaft and the rotating holes formed on the sliding frame are correspondingly arranged, a clamping part corresponding to the buckling hole is arranged at one end of the buckling piece, an upward supporting spring is arranged between the other end of the buckling piece and the sliding frame, and a pressure stopping apparatus is also arranged on the buckling apparatus. The connecting buckle with the safety switch has the advantages that the structure is simple, accidental loosening of the connecting buckle is completely avoided, and the universality is wide.

Abstract: Disclosed is a disentangled personalized federated learning method via consensus representation extraction and diversity propagation provided by embodiments of the present application. The method includes: receiving, by a current node, local consensus representation extraction models and unique representation extraction models corresponding to other nodes, respectively; extracting, by the current node, the representations of the data of the current node by using the unique representation extraction models of other nodes respectively, and calculating first mutual information between different sets of representation distributions, determining similarity of the data distributions between the nodes based on the size of the first mutual information, and determining aggregation weights corresponding to the other nodes based on the first mutual information; the current node obtains the global consensus representation aggregation model corresponding to the current node.

Abstract: Disclosed is a method for updating a node model that resists discrimination propagation in federated learning. The method includes: obtaining a node model corresponding to a data node; calculating a mean value of the distribution of class features and a quantity ratio corresponding to training data of the data node, calculating a distribution weighted aggregation model based on the node model, the mean value of the distribution of class features and the quantity ratio; calculating a regularization term corresponding to the data node based on the node model and the distribution weighted aggregation model; calculating a variance of the distribution of the class features corresponding to the data node, calculating a class balanced complementary term by using a cross-domain feature generator; and updating the node model based on the distribution weighted aggregation model, the regularization term, and the class balanced complementary term.

Abstract: A device and a method for continuous CO2 capture by a double-bed hydrate process are provided. The device includes a first fixed-bed hydrate reactor, a second fixed-bed hydrate reactor, a solution circulation system, a gas inlet system and an exhaust system; the first fixed-bed hydrate reactor and the second fixed-bed hydrate reactor are respectively connected in series with the gas inlet system, the exhaust system and the solution circulation system, and are connected in parallel; the refrigerant fluid and the heat medium fluid output by a compression-refrigeration system alternately flow into a heat exchange coil of the first fixed-bed hydrate reactor and a heat exchange coil of the second fixed-bed hydrate reactor, and the two fixed-bed hydrate reactors are alternately subjected to hydrate formation and decomposition reactions to realize continuous CO2 capture and separation.

Abstract: In the method, a terminal device display a first interface including a taken picture; collect a plurality of frames of images corresponding target object, and obtain an association relationship between the plurality of frames of images; and obtain a three-dimensional model corresponding to the target object based on the plurality of frames of images and the association relationship between the plurality of frames of images, and display the three-dimensional model. When the plurality of frames of images are collected, a first virtual bounding body including a plurality of patches is displayed. When the terminal device is in a first pose, the terminal device collects a first image, and changes a display effect of a patch corresponding to the first image. When the terminal device is in a second pose, the terminal device collects a second image, and changes a display effect of a patch corresponding to the second image.

Abstract: A system may identify a defined rectangular picture area and render video corresponding to the defined rectangular picture area. The system may receive a video bitstream comprising a picture having a header and may receive data specifying a structure of the picture. The system may parse the data specifying the structure of the picture for an identifier corresponding to a defined rectangular area in the first picture and for a tile index of a top left tile in the defined rectangular area. The system may determine one or more tiles comprised in the defined rectangular area based on the identifier corresponding to the defined rectangular area and the tile index of the top left tile. The system may reconstruct the picture including a sub-picture that comprises the defined rectangular area based upon the identifier corresponding to the defined rectangular area. The computing system may render the sub-picture in the defined rectangular area.

Abstract: Systems, methods, and instrumentalities are disclosed for a 360-degree video streaming. A video streaming device may receive a 360-degree video stream from a network node. The video streaming device may determine a viewport associated with the video streaming device and/or the 360-degree video stream. The video streaming device may determine (e.g., based on the viewport) to request in advance a first segment and a second segment of the 360-degree video stream. The video streaming device may determine a relative priority order for the first segment and the second segment. The video streaming device may generate an anticipated requests message. The anticipated requests message may indicate the determined relative priority order, for example, by listing the first segment and the second segment in decreasing relative priority based on the determined relative priority order. The video streaming device may send the anticipated requests message to the network node.

Abstract: A method and system for screening spectral indexes of rice resistant to bacteria. The method includes: processing spectral data of a test sample by a threshold segmentation algorithm to obtain average spectral information of each spectral image and a proportion of lesions corresponding to each spectral image; training a deep learning algorithm model based on a self-attention mechanism by using the average spectral information of each spectral image and the proportion of the corresponding lesions to construct a regression model for evaluating an area of the lesions; determining an optimal band combination and a weight value corresponding to each band in the optimal band combination based on the regression model for evaluating the area of the lesions, and then determining the spectral indexes; and identifying differences between rice of different genotypes at different times of infection by using the spectral indexes, and screening rice varieties resistant to bacterial blight.

Abstract: Disclosed is a disentangled personalized federated learning method via consensus representation extraction and diversity propagation provided by embodiments of the present application. The method includes: receiving, by a current node, local consensus representation extraction models and unique representation extraction models corresponding to other nodes, respectively; extracting, by the current node, the representations of the data of the current node by using the unique representation extraction models of other nodes respectively, and calculating first mutual information between different sets of representation distributions, determining similarity of the data distributions between the nodes based on the size of the first mutual information, and determining aggregation weights corresponding to the other nodes based on the first mutual information; the current node obtains the global consensus representation aggregation model corresponding to the current node.

Abstract: Disclosed is a method for updating a node model that resists discrimination propagation in federated learning. The method includes: obtaining a node model corresponding to a data node; calculating a mean value of the distribution of class features and a quantity ratio corresponding to training data of the data node, calculating a distribution weighted aggregation model based on the node model, the mean value of the distribution of class features and the quantity ratio; calculating a regularization term corresponding to the data node based on the node model and the distribution weighted aggregation model; calculating a variance of the distribution of the class features corresponding to the data node, calculating a class balanced complementary term by using a cross-domain feature generator; and updating the node model based on the distribution weighted aggregation model, the regularization term, and the class balanced complementary term.

Abstract: Methods, apparatus, and systems directed to adaptive streaming of V-PCC (Video-based Point Cloud Compression) data using an adaptive HTTP streaming protocol, such as MPEG DASH. A method includes signaling the point cloud data of the point cloud in a DASH MPD including: a main AdaptationSet for the point cloud, including at least (1) a @codecs attribute that is set to a unique value signifying that the corresponding AdaptationSet corresponds to V-PCC data and (2) an initialization segment containing at least one V-PCC sequence parameter set for a representation of the point cloud; and a plurality of component AdaptationSets, each corresponding to one of the V-PCC components and including at least (1) a VPCCComponent descriptor identifying a type of the corresponding V-PCC component and (2) at least one property of the V-PCC component; and transmitting the DASH bitstream over the network.

Abstract: Methods and apparatus relate to picture and video coding in communication systems are provided. Included therein is a method comprising determining one or more layers associated with a parameter set, generating a syntax element including an indication indicating whether the one or more layers associated with the parameter set are independently coded, and generating a message including the syntax element.

Abstract: Disclosed is a flexible filter spectral camera. A flexible filter module includes N flexible filter units corresponding to N different wavebands, respectively, where N is a positive integer greater than or equal to 2. A CMOS (Complementary Metal Oxide Semiconductor) module is used to convert incident light into a digital signal. Any one of the N flexible filter units can be switched to a preset position to filter light emitted from a lens and transmit light at a corresponding waveband to the CMOS module. The preset position is between the lens and the CMOS module. An image processor is connected to the CMOS module and is used to convert the digital signal into an image. In accordance with the present disclosure, precision imaging of the lens is achieved, the overlapping accuracy and imaging quality of the images are improved, and meanwhile, the processing efficiency for overlapped images is improved.

Abstract: An example device for presenting split-rendered media data includes a memory configured to store media data; and a processing system comprising one or more processors implemented in circuitry, the processing system being configured to: send pose information representing a predicted pose of a user at a first future time to a split rendering server; receive an at least partially rendered image for the first future time and data associating the pose information with the at least partially rendered image from the split rendering server; and at a second future time, present a rendered image based on the partially rendered image.

Abstract: A device and a method for continuous CO2 capture by a double-bed hydrate process are provided. The device includes a first fixed-bed hydrate reactor, a second fixed-bed hydrate reactor, a solution circulation system, a gas inlet system and an exhaust system; the first fixed-bed hydrate reactor and the second fixed-bed hydrate reactor are respectively connected in series with the gas inlet system, the exhaust system and the solution circulation system, and are connected in parallel; the refrigerant fluid and the heat medium fluid output by a compression-refrigeration system alternately flow into a heat exchange coil of the first fixed-bed hydrate reactor and a heat exchange coil of the second fixed-bed hydrate reactor, and the two fixed-bed hydrate reactors are alternately subjected to hydrate formation and decomposition reactions to realize continuous CO2 capture and separation.

Abstract: Methods and systems are disclosed for a mobile device to decode video based on available power and/or energy. For example, the mobile device may receive a media description file (MDF) from for a video stream from a video server. The MDF may include complexity information associated with a plurality of video segments. The complexity information may be related to the amount of processing power to be utilized for decoding the segment at the mobile device. The mobile device may determine at least one power metric for the mobile device. The mobile device may determine a first complexity level to be requested for a first video segment based on the complexity information from the MDF and the power metric. The mobile device may dynamically alter the decoding process to save energy based on the detected power/energy level.

Abstract: Various embodiments may provide methods, systems, and devices for supporting application level discovery of Radio Access Network (RAN) statistics and/or events. Various embodiments may provide methods, systems, and devices for supporting application level signaling of Quality of Service (QoS) requirements.

Abstract: A system may identify a defined rectangular picture area and render video corresponding to the defined rectangular picture area. The system may receive a video bitstream comprising a picture having a header and may receive data specifying a structure of the picture. The system may parse the data specifying the structure of the picture for an identifier corresponding to a defined rectangular area in the first picture and for a tile index of a top left tile in the defined rectangular area. The system may determine one or more tiles comprised in the defined rectangular area based on the identifier corresponding to the defined rectangular area and the tile index of the top left tile. The system may reconstruct the picture including a sub-picture that comprises the defined rectangular area based upon the identifier corresponding to the defined rectangular area. The computing system may render the sub-picture in the defined rectangular area.

Abstract: Methods, apparatus, and systems directed to adaptive streaming of V-PCC (Video-based Point Cloud Compression) data using an adaptive HTTP streaming protocol, such as MPEG DASH. A method includes signaling the point cloud data of the point cloud in a DASH MPD including: a main AdaptationSet for the point cloud, including at least (1) a @codecs attribute that is set to a unique value signifying that the corresponding AdaptationSet corresponds to V-PCC data and (2) an initialization segment containing at least one V-PCC sequence parameter set for a representation of the point cloud; and a plurality of component AdaptationSets, each corresponding to one of the V-PCC components and including at least (1) a VPCCComponent descriptor identifying a type of the corresponding V-PCC component and (2) at least one property of the V-PCC component; and transmitting the DASH bitstream over the network.