Abstract: A controller for a multiphase switching converter has a turn-on control circuit and a switch control circuit. The turn-on control circuit provides a turn-on control signal based on a voltage sensing signal and a voltage reference signal. The switch control circuit generates a plurality of switch control signals based on the turn-on control signal and a plurality of current sensing signals. The switch control circuit regulates a plurality of switching circuits to operate in n groups, with each group comprising k switching circuits that are turned on at the same time, where n and k are integers greater than one. The switch control circuit sequentially turns on the n groups of switching circuits in response to pulses of the turn-on control signal.

Abstract: An electronic device may be provided with an antenna resonating element on a first substrate that is mounted to a second substrate. A signal conductor may be coupled to a feed terminal on the antenna resonating element. The signal conductor may include impedance matching structures for the antenna. The impedance matching structures may include an open transmission line stub, a grounded transmission line stub, and a phase shifting segment. The impedance matching structures may configure the antenna to exhibit a wide bandwidth in an ultra-wideband (UWB) frequency band. If desired, the signal conductor may have a phase-shifting segment configured to match a non-50 Ohm impedance of a radio-frequency front end coupled to the signal conductor.

Abstract: A computer based method for an electronic marketing campaign from a customer to a contact receives a campaign having an email message body and a historic profile of a previous campaign by the customer. The email message body includes text and image data. The email message body is preprocessed based upon the campaign and the historic profile to produce campaign training data. A neural network learning model is trained with the campaign training data. The neural network provides a subject line recommendation inference, and named entity recognition is performed on the subject line recommendation.

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.