Abstract: The present disclosure provides a video picture coding method, a video picture decoding method, a coding device, and a decoding device. The method includes: determining a distance between control points for an affine picture block; determining a motion vector difference for the affine picture block, motion vectors of the control points being used to determine the motion vector difference; and performing coding processing on the affine picture block over a size that includes a horizontal length and a vertical length, wherein the horizontal length and the vertical length vary based on the distance between the control points, the motion vector difference, and a motion vector precision.

Abstract: A federated learning method and system, an electronic device, and a storage medium, which relate to a field of artificial intelligence, in particular to fields of computer vision and deep learning technologies. The method includes: performing a plurality of rounds of training until a training end condition is met, to obtain a trained global model; and publishing the trained global model to a plurality of devices. Each of the plurality of rounds of training includes: transmitting a current global model to at least some devices in the plurality of devices; receiving trained parameters for the current global model from the at least some devices; performing an aggregation on the received parameters to obtain a current aggregation model; and adjusting the current aggregation model based on a globally shared dataset, and updating the adjusted aggregation model as a new current global model for a next round of training.

Abstract: The present disclosure provides a multifunctional children's ride-on vehicle including a frame, a vehicle head, a front wheel, pedal mechanisms, a rear frame, a seat, rear wheel brackets, rear wheels, and a push rod. The frame is provided with a plurality of adjusting grooves, and the plurality of adjusting grooves are evenly distributed along the frame. The rear frame is provided with an adjusting block corresponding to the adjusting groove, and the adjusting block is embedded into the adjusting grooves. The frame is provided with a frame accommodating groove at the front end thereof, and the frame accommodating groove has a size same as that of the adjusting groove.

Abstract: An unlock method and system for an air-conditioning unit. The unlock system includes: a display apparatus; an input apparatus; and a control apparatus in communication with the display apparatus and the unlock system is configured to perform the following operations: generating a dynamic graphic according to at least an identification code and an update code; generating an unlock password according to at least a certificate, the identification code and the update code; receiving an unlock password through the input apparatus; comparing the unlock password received from the input apparatus with the generated unlock password; and granting a corresponding permission if the acquired unlock password is consistent with the generated unlock password.

Abstract: A device for spinal correction includes a stabilizer assembly including a hinge including a first rod-bearing leaf; a second rod-bearing leaf rotatably coupled to the first rod-bearing leaf to provide coronal or sagittal freedom of movement, or both, of the stabilizer assembly; a locking mechanism to lock the first and second rod-bearing leaves at a desired angle; a first stabilizing rod coupled to the first rod-bearing leaf; a second stabilizing rod coupled to the second rod-bearing leaf; and a plurality of monoaxial or polyaxial links, wherein each monoaxial or polyaxial link is movably coupled to the first or second stabilizing rod and is movably couplable to a first spinal rod or a second spinal rod fixed to the spine; wherein the stabilizer assembly is couplable to the first or second spinal rod to stabilize the spine to prevent compression, distraction, or translation of the spinal cord during a spinal correction.

Abstract: An emulsifiable concentrate may include: an aminoindane amide having the structure of formula (I); and an amide having the structure of formula (II); wherein R1, R2, R3, R4, R5, R6, R7, R8, R11, R12, R13, and n are as defined herein, as well as to formulations containing the same, and to methods of their preparation and use for treatment and protection of agricultural crops.

Abstract: A method for assessing fatigue damage and a fatigue life based on a crystal plastic welding process model. According to the new method, consideration is given to the effects of the crystal slip system and the polycrystal plastic strain on the welding process performance of the material. A welding process damage and fatigue life assessment model is established on the mesoscopic scale. The effect of microscopic characterizations of materials on the welding process performance, as well as on the fatigue damage and life of welded joints, can be studied from the mesoscopic point of view. The relationship between the welding process and the evolution of the material performance can be determined by the macro-mesoscopic coupling calculation model to further determine the effect and degree of welding processes on the fatigue damage and life of materials.

Abstract: A method for establishing a defect detection model and an electronic apparatus are provided. A first classification model is established based on a training sample set including a plurality of training samples. The training samples are respectively input to the first classification model to obtain a classification result of each training sample. A plurality of outlier samples that are classified incorrectly are obtained from the training samples based on the classification result. A part of outlier samples that are classified incorrectly is deleted from the training samples, and the remaining training samples are used as an optimal sample set. A second classification model is established based on the optimal sample set so as to perform a defect detection through the second classification model.

Abstract: The present disclosure disclosed a wireless charging module manufacturing method. The method includes the following steps: forming a first heat dissipating layer on a surface of a coil; and securing a magnetic shield part to the surface of the coil away from the first heat dissipating layer. A wireless charging module is manufactured by the method. By completely cover the coil with the first heat dissipating layer in the present disclosure, the first heat dissipating layer possesses excellent heat radiation, effectively improving the heat dissipation of the coil. The thickness of the first heat dissipating layer is controllable. Therefore, an effective and highly stable heat dissipating performance can be provided without increasing the thickness and cost of the wireless charging module.

Abstract: Various embodiments include a method of ascertaining the oxygen load of a catalytic converter disposed in an exhaust tract of an internal combustion engine with an exhaust gas sensor is disposed downstream of the catalytic converter comprising: generating a signal using the exhaust gas sensor indicating a proportion of nitrogen oxide and/or ammonia in the exhaust gas; and ascertaining the oxygen load of the catalytic converter at least partly on the basis of the signal from the exhaust gas sensor.

Abstract: A method for monitoring an oil flow, generated by an oil pump, in an oil cooling circuit of a thermal management system, includes: arranging a first pressure sensor at a first point in the cooling circuit; arranging a second pressure sensor at a second point in the oil cooling circuit; determining pressure difference values based on recorded pressures; and comparing the pressure difference values with a predeterminable comparison value for the pressure difference so as to check for a fault.

Abstract: A sealing structure and a refrigerated container having same. The sealing structure comprises a base, a protruding portion, a deforming portion, and connections through holes. The base is a bar having a predetermined thickness. The protruding portion and the deforming portion are on a sealing surface of the base, and are configured to protrude outwards relative to the sealing surface and extend lengthwise along the base. The deforming portion extends by the same length as but higher than the protruding portion. When the deforming portion is subjected to a force toward the sealing surface, the height decreases. The holes are between the protruding portion and the deforming portion along the base. The holes are spaced apart from each other in the lengthwise direction of the base. The performance of the sealing structure improves hermeticity of products, reduces quality risks, and ensures pressure-resistance installation and anti-weathering performance that extends service life.

Abstract: Methods for calculating the radiation dose to the immune system of a patient undergoing radiotherapy are provided. In particular, the methods provide for calculating an effective dose to blood (EDIC) to circulating immune cells. The methods can be incorporated into radiotherapy (RT) treatment planning systems, which are also provided. The methods can be used to optimize patient treatment plans. Methods for treating a patient with RT with an optimized treatment plan are provided.

Abstract: This disclosure relates to coronavirus vaccines and uses thereof. In one aspect, the disclosure provides a nucleic acid vaccine, comprising a sequence encoding a spike protein or fragment thereof derived from a coronavirus.

Abstract: Provided is a method for blockchain-based recordkeeping and implementable by a terminal device. The method comprises: obtaining target data; computing a data digest of the target data, and extracting a key segment from the target data; signing, in a secure operation environment included in the terminal device, the data digest and/or the key segment based on a private key associated with the terminal device to generate a signature; and submitting to a blockchain the data digest, the key segment, and the signature, for one or more nodes in the blockchain to verify the signature based on a public key corresponding to the private key, and to record the data digest and the key segment in the blockchain in response to the signature being verified to be valid.

Abstract: The present disclosure belongs to the technical field of flagpoles, and in particular relates to a rotating ring, including a flagpole and two fixing sleeves; the two fixing sleeves are arranged outside the flagpole; each of the fixing sleeves is provided with a cover, the cover is slidably connected with the flagpole; a rotating ring body is rotatably connected to the outside of the cover, and a threaded fixing ring is in threaded connection with the outside of the cover; and the threaded fixing ring is in contact with the rotating ring body. Two groups of fixing sleeves, covers, rotating ring bodies, threaded fixing rings, balls, hanging lugs, positioning holes, external threads and other components are designed on a cylinder The two hanging lugs are used for hanging a flag. Therefore, when wind blows, the rotating ring bodies can rotate to prevent the flag from wrapping around the flagpole.

Abstract: An osmium-containing conjugated polymer and methods thereof. A structural formula of the osmium-containing conjugated polymer is formula I, a reaction formula of the osmium-containing conjugated polymer is a formula II.

Abstract: A novel classification strategy is described for forecasting clinical outcomes of Diffuse Large B-cell Lymphoma using targeted RNA sequencing combined with machine learning algorithms. The novel method classifies subjects with DLBCL into subgroups based on the clinical course of their disease and expected survival, rather than on Cell of Origin. To focus on survival, the methods first deploy machine learning and divide the subjects into subgroups based on their overall survival. A modified Bayesian classifier is then used to select genes that can forecast various survival groups, followed by validation of these biomarkers using an independent set of clinical cases. This novel approach for stratifying subjects with DLBCL based on the clinical outcome of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) chemotherapy can be used to select high responders and low responders to R-CHOP. Low responders may be offered additional or alternative therapies to improve their survival.

Abstract: The present disclosure relates to a structural coating and preparation method and use thereof. The structural coating provided in the present disclosure includes a titanium transition layer and platinum-hafnium composite structure layers laminated in sequence on a surface of a substrate; the number of the platinum-hafnium composite structure layer is ?3; the platinum-hafnium composite structure layer includes a hafnium layer and a platinum layer laminated in sequence.