Abstract: Presented herein is a printed circuit board (PCB) assembly with an absorber having a perforated structure. The absorber is positioned between a trace of a PCB and a connector that couples the PCB to an enclosure. The absorber includes a perforated structure to maintain an integrity of a signal propagated along the trace, while improving electromagnetic interference and/or electromagnetic compatibility properties.

Abstract: The present disclosure provides a system and method for image reconstruction and processing. The method may include obtaining image data of an object acquired by an imaging device. The method may include determining one or more regions of interest (ROIs) of the object. The method may also include determining, based on each ROI of the one or more ROIs, a target portion of the image data corresponding to the ROI among the image data. The method may further include reconstructing, based on the target portion of the image data, one or more images of the ROI.

Abstract: Methods, apparatus, systems, architectures and interfaces for encoding and/or decoding point cloud bitstreams including coded point cloud sequences are provided. Included among such methods, apparatuses, systems, architectures, and interfaces is an apparatus that may include a processor and memory. A method may include any of: mapping components of the point cloud bitstream into tracks; generating information identifying any of geometry streams or texture streams according to the mapping of the components; generating information associated with layers corresponding to respective geometry component streams; and generating information indicating operation points associated with the point cloud bitstream.

Abstract: A client device adaptively streams a 360-degree video. A first segment is displayed based on a first viewing direction at a first time, where the first viewing direction is associated with a first viewport. The client requests a first base buffer segment based on the first viewport. The first base buffer segment has a presentation time after the first segment. At a second time, the viewing direction changes to a second viewing direction associated with a second viewport. The client requests, prior to the presentation time, a first viewport buffer segment based on the second viewport, with the same presentation time. The client device displays a second segment at the presentation time, wherein the second segment is either the first viewport buffer segment or the first base buffer segment. The client provides reports on viewport switching latency and on the most-requested segments.

Abstract: A connector includes a housing and a locking member rotatably connected to the housing. The locking member is rotatable between a locking position and an unlocking position. The locking member includes a pair of force arms, a pair of hook shaped locking parts, and a pair of rollers. First ends of the pair of force arms are rotatably connected to an outer side of the housing. The pair of hook shaped locking parts are respectively formed on second ends of the pair of force arms. The pair of rollers are rotatably installed on the ends of the hook shaped locking parts. As the hook shaped locking part is locked onto the locking post, the roller of the hook shaped locking part is in rolling contact with the locking post.

Abstract: Embodiments of the present disclosure provide an application management method, an application management device, a terminal and a readable storage medium. The method includes: determining an application to be frozen on a terminal; detecting a sensor on the terminal applied for by the application to be frozen; and determining whether to freeze the application based on the application to be frozen and a type of the sensor applied for by the application to be frozen, and performing a corresponding operation.

Abstract: The present disclosure provides a system and method for smart gas full-cycle supervision based on IOT, the method includes: obtaining gas production data; determining base supervision data based on the gas production data; obtaining residual computing resources at a preset frequency; in response to determining that a sum of the reference resource consumption and the residual computing resources satisfying a preset requirement, performing operations including: generating and sending a control instruction to a gas company management platform; evaluating an importance degree of each of the all batches of gas in the target gas based on the target data and the gas production data of the target gas; and adjusting a gas supply volume of the at least one of all batches of gas in the target gas based on the importance degree of the each of the all batches of gas in the target gas and the target data.

Abstract: Improved method and apparatus for signaling of reference pictures used for temporal prediction. The signaling schemes and construction process for different reference picture lists in HEVC Working Draft 5 (WD5) are improved.

Abstract: Disclosed are a double-sided solar cell and a preparation method therefor. The double-sided solar cell comprises: a silicon wafer having a PN junction, and a front first silicon oxide layer, a front second silicon oxide layer, a front first nitrogen-containing silicon compound layer, a front second nitrogen-containing silicon compound layer, and a front third silicon oxide layer that are located on one side of an N-type layer of the silicon wafer and are sequentially stacked along a direction away from the silicon wafer; and a passivation layer, a back silicon oxide layer, a back first nitrogen-containing silicon compound layer, and a back second nitrogen-containing silicon compound layer that are located on one side of a P-type layer of the silicon wafer and are sequentially stacked along the direction away from the silicon wafer.

Abstract: Disclosed is a system and method for allowing one or more users to interact with models from a distance, for example, by enabling the users to input the models during online video chat sessions, wherein the models can define input parameters and provide at least one interactive interface, receive an interactive result according to the interactive interface to perform predefined acts, via an adult toy, based on the interactive result received. The adult toy can be Wi-Fi or Bluetooth™ enabled to receive commands directly from the server via a web browser extension, the website hosting an online video chat session, or connect to an application installed on a device operated by the model, wherein the application communicates with the web browser extension to relay commands to the adult toy therefrom. In some embodiments, the interactive interface provides a finger guessing game, a dice game or a lottery game.

Abstract: Systems, methods, and instrumentalities are disclosed that relate to the processing of a media container file associated with 3D video data. The media container file may indicate that certain video-based point cloud compression (V-PCC) component tracks may be played together as a playout group. These V-PCG component tracks may represent respective encoded versions of one or more V-PCC components, and a video decoding device may play the tracks together in response to determining that the tracks belong to the same playout track group. The video decoding device may also determine from the media container file that certain PCC component tracks include tile groups that correspond to different objects in a point cloud or different parts of a same object in the point cloud. The video decoding device may decode these tile groups independently from each other so that a subset of the objects or parts of the point cloud may be accessed without also accessing the rest of the objects or parts.

Abstract: Scheduling with split symbols for beam management is described. An apparatus is configured to receive, from a network node, DL signaling including a symbol in a first slot, and to measure a first measurement of a first beam during a first time portion, and a second measurement of a second beam during a second different time portion, of the symbol. The apparatus is configured to communicate, with the network node, using the first or second beam based on at least one of the first measurement or the second measurement. Another apparatus is configured to provide, for a UE, DL signaling including a symbol in a first slot, and to communicate, with the UE, using the first or second beam based on a first and/or second measurement. The first and second measurements are of first and second beams during a first and second different time portions of the symbol, respectively.

Abstract: There is provided a method performed by a user plane core network function for a wireless communication network. The user plane core network function is configured with a range of Internet Protocol addresses for allocation to user equipments. The method comprises: transmitting a message to a control plane core network function, the message comprising an indication of a usage level of the range of IP addresses.

Abstract: Methods are described herein for signaling information regarding different viewpoints in a multi-viewpoint omnidirectional media presentation. Techniques disclosed include receiving, from a server, information identifying groups of viewpoints, including information identifying a first group of viewpoints and a second group of viewpoints. And further receiving, from the server, information identifying one or more omnidirectional videos captured from respective viewpoints belonging to the first group and information identifying one or more omnidirectional videos captured from respective viewpoints belonging to the second group.

Abstract: Provided are a sound gathering device for voiceprint monitoring and a preparation method. The sound gathering device is a cone structure and includes a front end portion (1) and a rear end portion (2), the front end portion (1) is trumpet-shaped, an inner wall surface of the front end portion (1) is present a pattern array of a microstructure (3), and the microstructure (3) presenting the pattern array is formed through laser etching. A sound wave frequency monitored by the sound gathering device is 50 Hz˜10 kHz, and a sound wave enters the sound gathering device from an entrance of the front end portion (1), is reflected through the pattern array of the microstructure (3) on the inner wall surface of the front end portion (1), and is transmitted from an exit of the rear end portion (2), and a sound pressure of the exit of the rear end portion (2) is 4 times˜8 times a sound pressure of the entrance of the front end portion (1).

Abstract: Systems, methods, and instrumentalities are disclosed herein that relate to video-based point cloud streams in one or more ISO Base Media File Format (ISOBMFF) container files. A container format for point cloud data is provided and the container format indicates at least a relationship between a 3D region of the point cloud and one or more video-based point cloud compression (V-PCC) tracks. The V-PCC tracks may be grouped together and linked to the 3D region to allow spatial access to the 3D region.

Abstract: The invention discloses a type of compound that can specifically bind to ?-synuclein aggregates represented by Formula I, a radio-labelled compound thereof, a preparation method, and its use. The compound can be used as a tracer for optical imaging of ?-synuclein aggregates in biological samples or in vivo (such as the brain). After radio-labelled, the compound of the invention can be used as a radio imaging tracer for PET, SPECT, and other imaging techniques to realize the detection of ?-synuclein lesions by non-invasive visualization in vivo (such as the brain).

Abstract: A simulation device for magnetic closing of flap valve is disclosed, which includes a worktable, a driving mechanism for driving the worktable to rotate, a valve seat, a magnetic valve cover movably connected with the valve seat, a first magnet for repelling the magnetic valve cover, a cylinder, a lifting equipment for driving the cylinder to rise and fall. When the cylinder is inserted into the valve seat driven by the lifting equipment, the cylinder prevents the closure of the magnetic valve cover. When the cylinder is out of contact with the magnetic valve cover driven by the lifting equipment, the magnetic valve cover is closed, and the worktable in the simulation device can rotate and turn over, so that the closing process of flap valve (valve seat and valve cover) in any direction of deep drilling coring under the action of magnetic force is simulated.

Abstract: The present application provides a preparation method and application of a crystalline silicon solar cell having a shallow junction diffusion emitter. The preparation method comprises a diffusion process and a chain oxidation process, the diffusion process comprises low temperature diffusion and high temperature propulsion, and the chain oxidation process comprises high-temperature chain oxidation. According to the present application, firstly, a low-doped diffusion shallow junction having a depth of 0.15 um is prepared by means of optimization of the diffusion process, and doping with a certain dose concentration is formed on the surface of a diffusion layer by using photon thermal activation radiation energy of high-temperature chain oxidation, so as to solve the mismatch problem of alloy ohmic contact subsequently formed with silver paste, and finally, the photoelectric conversion efficiency is improved to a high degree.

Abstract: A lattice-based proxy signature method, apparatus and device, a lattice-based proxy signature verification method, apparatus and device, and a storage medium. Polynomials are randomly selected in rings to calculate public and private keys of nodes, and the magnitudes of proxy public and private keys are the same as the magnitudes of public and private keys of an original signer. Therefore, compared with existing proxy signature schemes, the present application has smaller lengths of public and private keys and higher storage efficiency. Proxy signature information generated in the present application shows a signature of the original signer and also shows a signature of a proxy signer. Once a proxy signature is created, the proxy signature cannot be repudiated by the proxy signer, and has strong non-repudiation and strong unforgeability. The proxy signature method has the advantage of resisting quantum computer attack.