Abstract: Techniques related to video coding include content adaptive quantization that provides a selection between objective quality and subjective quality delta QP offsets. An adaptive method generates an objective quality delta QP offset that achieves a best peak signal-to-noise ratio (PSNR) and/or structural similarity (SSIM) score, which refers to a similarity between images. Also, the adaptive method generates a subjective quality delta QP offset that achieves the best video multi-method assessment fusion (VMAF) score and/or multi-scale structural similarity (MSSIM) score.

Abstract: Disclosed is an automatic cleaning device including: a mobile platform configured to automatically move on an operating surface and comprising an accommodating chamber; and a cleaning module comprising a dust box, the dust box being detachably assembled in the accommodating chamber, the dust box comprising an accommodating portion, a top cover disposed above the accommodating portion, and a locking mechanism; the locking mechanism comprising a first locking mechanism substantially disposed at a central axis of the top cover; wherein the first locking mechanism comprises at least a first downward-grip recess and a first stop member, the first stop member being disposed within the first downward-grip recess, and the first stop member being capable of being elastically moved relative to the first downward-grip recess under an action of an external force; and the locking mechanism further comprises a second locking mechanism.

Abstract: The present invention discloses a highly integrated R-wave triggered tumor therapy apparatus, and relates to the technical field of medical devices for ablation of tumors. The apparatus includes: a human body R-wave detection module for detecting a human body R-wave signal; a signal generator for obtaining a narrow pulse signal with nanometer width according to the human body R-wave signal; a primary matching circuit; and a high-frequency transformer; where the primary matching circuit is used for matching the narrow pulse signal with nanometer width to an input side of the high-frequency transformer, so that the high-frequency transformer outputs a high-voltage signal needed for treatment of human bodies.

Abstract: Provided is an automatic cleaning device. The automatic cleaning device includes: a mobile platform configured to automatically move on an operation surface and including an accommodating chamber, the accommodating chamber including a first chamber and a second chamber; and a cleaning module comprising a dust box detachably assembled to the accommodating chamber. The first chamber and the second chamber are sequentially arranged next to each other in an advancing direction of the automatic cleaning device, and a depth of the first chamber is greater than a depth of the second chamber.

Abstract: A phase shifter includes first and second dielectric substrates opposite to each other and a plurality of phase shift units between the first and the second dielectric substrates; the phase shift unit includes first and second electrode layers and an adjustable dielectric layer between the first and the second electrode layers; orthographic projections of the first and second electrode layers on the first dielectric substrate at least partially overlap each other, and at least one accommodation cell of the phase shift unit is defined in a region where the orthographic projections of the first and second electrode layers on the first dielectric substrate overlap each other; the adjustable dielectric layer is in at least the accommodation cell; and cell gaps of the accommodation cells of at least a part of the plurality of phase shift units are different from each other.

Abstract: A roller conveying rack includes two carrier plates with rectangular shapes, wherein the carrier plates are arranged in parallel and aligned, legs are disposed on both sides of a bottom of each carrier plate in a longitudinal direction of the carrier plate, the legs on different carrier plates are connected by sleeve shafts broken in a middle portion, rolling sleeves broken in a middle portion are arranged between upper portions of the carrier plates in the longitudinal direction of the carrier plates, movable shafts are disposed at the broken middle portion of the sleeve shafts and connecting shafts are disposed at the broken middle portion of the rolling sleeves, insertion holes are provided on each sleeve shaft between the legs and threaded holes are provided on each movable shaft between the legs, and each insertion hole is connected to a corresponding threaded hole by a bolt.

Abstract: A method for forming an oxide layer includes forming a protective interlayer oxide on sidewalls of a trench formed on a substrate, forming a silicon nitride layer on the protective interlayer oxide, by a plasma-enhanced atomic layer deposition (PE ALD) process utilizing nitrogen-containing process gas, the silicon nitride layer having a concentration gradient of nitrogen varying from high concentration away from the protective interlayer oxide to low concentration near the protective interlayer oxide, and performing a conversion process to oxidize the formed silicon nitride layer to at least partially convert the formed silicon nitride layer to a silicon oxide layer.

Abstract: A processing method for preventing electromagnetic induction when a main system and a standby system of a safety drive unit co-drive a relay. The method includes the following steps: periodically acquiring and detecting a drive command; detecting a port state of an output port of a safety drive unit when the drive command changes; performing a corresponding processing operation according to the port state of the output port; and repeating the foregoing steps.

Abstract: The present application provide a connection component, a battery cell, a battery, and an electric device. The connection component includes a body, a convex portion, a concave portion and a gap control portion, and the body includes a first surface and a second surface opposite to each other in a thickness direction thereof; and the gap control portion is configured to be when the associated connection component is stacked on the other connection component, said gap control portion is in contact with said the other connection component, so as to control a dimension of a gap D between the two connection components to be greater than 0.6H, wherein H is the height of the convex portion protruding from the first surface. According to the connection component provided by the present application, the gap between two adjacent connection components can be controlled when material is stuck.

Abstract: Embodiments of this application relate to the field of storage technologies, and disclose a data backup method and a terminal, to back up user data in a terminal when the terminal cannot be used. A specific solution is as follows: A terminal includes a first data partition, and the first data partition supports to start an operating system when the terminal is powered on. The terminal starts the operating system by using a second data partition after detecting a power-on failure of the terminal or detecting a preset operation of a user. The second data partition is a blank data partition. After the operating system is successfully started, the terminal transmits user data in the first data partition to a first storage medium. The first storage medium is located outside the terminal and is connected to the terminal.

Abstract: A liquid crystal phase shifter includes: a first substrate; a second substrate, provided opposite to the first substrate; a liquid crystal layer, provided between the first substrate and the second substrate; and a phase shift region, including a first electrode, a second electrode and a control circuit, where the first electrode is provided on a side of the first substrate close to the second substrate, the second electrode is provided on a side of the second substrate close to the first substrate, an orthographic projection of the second electrode on the first substrate partially overlaps with an orthographic projection of the first electrode on the first substrate, and the second electrode is grounded.

Abstract: This technology provides designs and methods for the vehicle on-board unit (OBU), which facilitates vehicle operations and control for connected automated vehicle highway (CAVH) systems. OBU systems provide vehicles with individually customized information and real-time control instructions for vehicle to fulfill the driving tasks such as car following, lane changing, route guidance. OBU systems also realize transportation operations and management services for both freeways and urban arterials. The OBU composed of the following devices: 1) a vehicle motion state parameter and environment parameter collection unit; 2) a multi-mode communication unit; 3) a location unit; 4) an intelligent gateway unit, and 5) a vehicle motion control unit. The OBU systems realize one or more of the following function categories: sensing, transportation behavior prediction and management, planning and decision making, and vehicle control.

Abstract: A nuclide identification method, a system and an electronic device are provided, which relates to the field of nuclide identification. According to statistical characteristics, a background probability density function and a Compton probability density function in a ROI are determined. An energy Bayesian factor and a time Bayesian factor are determined based on energy and time interval information in a sequence of the nuclear detection events obtained by measurement. By combining the two factors, Compton plateau can be effectively identified and distinguished.

Abstract: A method and apparatus for the execution of a bus controller, and a bus controller, a computer device and a storage medium. The bus controller is connected to a target device by means of a target bus, the bus controller comprises an instruction memory, which is used to store one or more instructions, and the instructions correspond to one or more bus sub-operations. The method includes: when an instruction execution command is received, acquiring an instruction from an instruction memory; parsing the instruction, and then executing one or more corresponding bus sub-operations; and executing a corresponding control or data operation on a target device by means of the one or more bus sub-operations. By means of writing different instructions into the instruction memory, various types of bus timing, including uncommon and distinct bus timing, may be generated.

Abstract: A tunable phase shifter and a method for manufacturing the same, and a tunable phase shifting device. The phase shifter includes a first substrate, a second substrate, and a tunable dielectric layer between the first substrate and the second substrate; the first substrate includes a first base substrate and a first electrode on the first base substrate; the second substrate includes a second base substrate and a second electrode on the second base substrate; an orthographic projection of the first electrode on the first base substrate is at least partially overlapped with an orthographic projection of the second electrode on the first base substrate, and sheet resistances of materials of the first electrode and the second electrode are both less than or equal to 0.024?/?.

Abstract: This application relates to the field of communication device technologies, and provides a wireless router and a control method thereof, to resolve a problem of how to improve application universality of the wireless router. The wireless router includes an omnidirectional antenna, a directional antenna, and a driving apparatus. The driving apparatus is connected to the directional antenna, the driving apparatus is configured to drive the directional antenna to rotate, so that a beam direction of the directional antenna coincides with a direction of a target beam in a beam lookup table, and the target beam is capable of covering a target device. The beam lookup table includes a set formed by beams when the directional antenna rotates to a plurality of different orientations under driving of the driving apparatus. The wireless router provided in this application is used for wireless coverage of a house building.

Abstract: Provided is a sheet forming thickness control method of an overflow brick, including: S1: obtaining a free flow thickness distribution and a free flow speed distribution of an overflow of a glass on an overflow surface of the overflow brick through simulation; S2: calculating an equivalent drawing speed distribution of an overflow guide plate and a critical equivalent drawing speed of the overflow guide plate; S3: calculating an equivalent drawing thickness distribution and a forming thickness distribution of the overflow of the glass; S4: calculating an extreme thickness difference of a formed glass substrate; and S5: when the extreme thickness difference is greater than a preset threshold, changing current parameters and repeating steps S1 to S4; and when the extreme thickness difference is smaller than or equal to the preset threshold, processing the overflow brick and producing the glass substrate in accordance with the current parameters.

Abstract: This application provides an antenna, an ultra wide band antenna array, and an electronic device, where the antenna operates in a target frequency band and is arranged on a metal substrate, and the antenna includes a first radiation patch, a second radiation patch, a first short-circuit wall, and a second short-circuit wall, a projection of the first radiation patch on the metal substrate overlaps with a projection of the second radiation patch on the metal substrate, a projection of the first short-circuit wall on the metal substrate does not overlap with a projection of the second short-circuit wall on the metal substrate, the first short-circuit wall is respectively connected to the first radiation patch and the metal substrate, the second short-circuit wall is respectively connected to the first radiation patch and the second radiation patch.

Abstract: The present application disclosed a cutting device and a cutting balloon, the cutting device includes a connection tube, at least one cutting component and a collapsible tube; the collapsible tube is made of elastic material and configured to be sleeved on the connection tube; the at least one cutting component includes a cutter body and cutting connection segments connected to the cutter body, the cutting connection segments are connected to a peripheral side of the connection tube (100) and are located in the collapsible tube; and the collapsible tube is in elastic contact against the cutting connection segments.