Abstract: Embodiments of the present disclosure provides a method and a system for image quality assessment. The method may include obtaining a first image of a target video, wherein the first image may be determined based on a target video frame in the target video; and determining a target image quality of the target video frame based on at least one of a first parameter and a second parameter of the first image, wherein, the first parameter may be determined based on an effective region in the first image, the second parameter may be determined based on a first similarity parameter between the first image and a second image, and the second image may be determined based on a video frame other than the target video frame in the target video.

Abstract: Methods, systems, and devices for abnormal sound detection are described. An audio recording of a mechanized environment may be obtained. First sounds extracted from the audio recording may be categorized into a set of categorical sounds. A library of first sound patterns may be generated using the categorical sound and based on second sounds extracted from the audio recording. The first sound patterns may include sequences of the categorical sounds. Audio data including audio signals capture by sensors in the mechanized environment may be received, and second sound patterns detected in the audio signals may be compared with the first sound patterns. Based on comparing the second sound patterns with the first sounds patterns, a sound pattern that is not in the library of the first sound patterns may be identified. An alarm may be generated based on detecting the sound pattern a threshold quantity of times.

Abstract: A multiphase power supply has an input terminal, an output terminal, a plurality of transformers, a plurality of switching circuits, and a control circuit. Secondary windings of the plurality of transformers are coupled in series with a compensation inductor. The plurality of switching circuits are coupled in parallel between the input terminal and the output terminal. Each of the plurality of switching circuits is coupled to the output terminal via a primary winding of a corresponding transformer. The control circuit senses an average current flowing through the plurality of switching circuits and a current flowing through the compensation inductor respectively, and corrects a sensing result of the average current based on the current flowing through the compensation inductor. The control circuit further provides a plurality of pulse width modulation signals based on the output voltage and the corrected sensing result to control the plurality of switching circuits.

Abstract: A curved display apparatus, includes a display panel, a backlight module, and a rear housing. The display panel and the rear housing are arranged opposite to each other in a first direction. The display panel includes a display area and a non-display area. The non-display area includes a connection portion, a first control portion, and a second control portion. The connection portion is located on the side of the first control portion away from the display area, and the second control portion is located on the side of the connection portion away from the display area. The connection portion is bendable such that the second control portion is folded to the side of the backlight module facing away from the display panel and is opposite to the first control portion, and the second control portion is connected to the backlight module.

Abstract: The present disclosure may provide a marking system for intestinal valve imaging. The marking system may obtain multiple intestinal images of an examined object. The marking system may perform intestinal valve segmentation on at least a portion of the multiple intestinal images to determine at least one independent intestinal valve. The marking system may also mark the at least one independent intestinal valve in the at least a portion of the multiple intestinal images.

Abstract: An acoustic structure includes a first core layer having a lattice structure between a first major surface and a second major surface, a first scrim coupled to the first major surface, a second scrim coupled to the second major surface, a second core layer having a lattice structure between a first major surface opposite a second major surface coupled to the second scrim, and a third scrim coupled to the second major surface of the second core layer. The acoustic structure has a bulk density of less than about 12 pounds per cubic foot.

Abstract: A stilbene derivative can be used in the prevention and/or treatment of ulcers. A compound of formula (I) or a pharmaceutically acceptable salt thereof can effectively prevent or treat ulcers, and in particular, has a curative effect on oral ulcers.

Abstract: Provided herein are systems and methods for the detection and quantification of a target protein via bioluminescence and/or bioluminescent resonance energy transfer (BRET). In particular, provided herein are assay methods using a multi-component biochemical system that assembles into a detectable in vitro chemical complex at a protein target of interest.

Abstract: Disclosed are compounds, compositions, and methods useful for preventing or treating a disease which is at least partially mediated by orexin receptor 2.

Abstract: An electronic device may be provided with wireless circuitry and a housing having peripheral conductive housing structures. The wireless circuitry may include first and second antennas. The first antenna may have a resonating element arm formed from a first segment of the peripheral conductive housing structures. The second antenna may have a resonating element arm formed from a second segment of the peripheral conductive housing structures separated from the first segment by a gap. Switchable short paths may be coupled between the second segment and ground on opposing sides of an antenna feed for the second antenna and/or may be coupled between the first and second segments and ground on opposing sides of the gap. Additionally or alternatively, a switch may be coupled between the first and second segments across the gap and a tuning component may couple the second segment to the ground structures.

Abstract: The present disclosure provides a method for increasing the bulk density of a nicotinamide mononucleotide crystal and a crystal thereof. The method includes: dissolving nicotinamide mononucleotide in water to obtain an aqueous solution of nicotinamide mononucleotide; performing vacuum concentration or freeze drying on the aqueous solution of nicotinamide mononucleotide to obtain a semi-solid with a water content equal to or less than 15%; adding a solventing-out agent dropwise to the semi-solid under stirring, and meanwhile, performing cooling at a rate of 1-15° C./h to a crystallization end temperature of 5-18° C.; and after a crystal is completely precipitated, performing filtration and drying on the crystal to obtain a nicotinamide mononucleotide crystal with increased bulk density. An NMN crystal of a bulk structure can be prepared by the method, and compared with existing NMN crystals, the bulk density of the NMN crystal is doubled.

Abstract: A construction lifting device and a leaping method for a construction lifting device. The leaping method includes erecting a top crossbeam above a target floor in a shaft; connecting a host platform of the construction lifting device to the top crossbeam by a drive device; raising a car of the construction lifting device close to the host platform and fixedly connecting the car to the host platform; and activating the drive device to lift the host platform to the target floor.

Abstract: An electronic device may be provided with an antenna module having a substrate. An antenna may be disposed on the substrate. The antenna may have a directly fed patch and parasitic patches. The antenna may be fed by a feed via. The parasitic patches may include a first layer of parasitic patches separated by a gap overlapping the directly fed patch. The parasitic patches may include an additional parasitic patch formed in a second layer. The additional parasitic patch may overlap the gap. A floating ground via may couple a center of the additional parasitic patch and a center of the directly fed patch to a landing pad in a ground layer. The landing pad may short the via to the ground layer at the radiating frequency of the antenna. The landing pad may be electrically floating at DC frequencies.

Abstract: A chassis includes a chassis body and an installation frame, and the chassis body has a channel that passes through a first end and a second end that are of the chassis body. The installation frame is slidably disposed in the channel of the chassis body. The installation frame has a first part facing the first end of the chassis body and a second part facing the second end of the chassis body; and the first part is capable of sliding out from the first end of the chassis body, and the second part is capable of sliding out from the second end of the chassis body.

Abstract: A connector plug usable to be connected to the connector socket in a fitting manner. The connector plug includes a housing component and an inner core component in the housing component. The housing component includes an inner housing and an outer housing movably sleeved at an outer side of the inner housing in an axial direction. A socket housing includes a socket locking mechanism, and a plug housing includes a corresponding plug locking mechanism usable to be connected to the socket to implement plug-socket locking, and an inner wall of the socket housing includes at least one socket anti-rotating structure in the axial direction, and a plug inner housing includes a matching plug anti-rotating structure usable to implement anti-rotation of the plug and the socket.

Abstract: Embodiments of the present disclosure relate to feature selection via an ensemble of gating layers. According to embodiments of the present disclosure, a plurality of gating layers is provided to be trained together with a machine learning model. At each update step, one of the plurality of gating layers is selected to perform gating parameter value update together with model parameter value update of the machine learning model. After the iterative update process, a set of target gating parameter values is determined from a plurality of sets of gating parameter values of the plurality of gating layers after the iterative update, and can be used to select a target subset of features to be conveyed from one layer to a next layer in the machine learning model.

Abstract: This disclosure relates to an automatic driving method, apparatus and system, and a non-transitory computer-readable storage medium, and relates to the field of agricultural machine automatic driving. The automatic driving method includes acquiring a trajectory of travel of an agricultural machine on a current row and an image of an operated area of a farm implement connected with the agricultural machine on the current row; determining a boundary of the operated area of the farm implement on the current row according to the image of the operated area of the farm implement on the current row; determining an operating width of the farm implement; and determining a space between a trajectory of travel of the agricultural machine on a next row and the trajectory of travel of the agricultural machine on the current row.

Abstract: Systems and methods for smart dialogue communication are provided. A method may include receiving, from a responder terminal device, a dialogue request configured to request a smart dialogue communication, wherein the dialogue request is associated with an incoming call request that is initiated by a requester via a requester terminal device and satisfies a smart dialogue condition determined by the responder terminal device; performing the smart dialogue communication with the requester terminal device associated with the requester; recording voice information associated with the smart dialogue communication; converting the voice information into the text information; and transmitting the text information to the responder terminal device.

Abstract: A multiphase switching converter has a first plurality of switching circuits, a second plurality of switching circuits, a master controller and a slave controller. The master controller provides a first total current signal based on a sum of a plurality of currents flowing through the first plurality of switching circuits, provides a first plurality of switching control signals based on the output voltage to control the first plurality of switching circuits. The slave controller receives the first total current signal, provides a second total current signal based on a sum of a plurality of currents flowing through the second plurality of switching circuits, and provides a second plurality of switching control signals based on at least the first total current signal and the second total current signal to control the second plurality of switching circuits.