Abstract: An inverter control method, apparatus and device are provided, so as to solve the problem of risk of damage to switching devices in an inverter due to delays. The method includes: in a first switching period, determining a current change duration based on a time instant at which an inductor current in an inverter is equal to a first current threshold and a time instant at which the inductor current is equal to a second current threshold; determining a current change rate based on the current change duration, the first current threshold, and the second current threshold; reducing the first current threshold and the second current threshold if the current change rate is greater than a preset threshold; and controlling a switch by using the reduced current thresholds in a second switching period.

Abstract: The present disclosure provides novel antibodies targeting CD3 and one or more other targets, or antigen-binding fragments thereof, isolated polynucleotides encoding the same, pharmaceutical composition comprising the same and the uses thereof.

Abstract: A shuttle kiln according to certain aspects includes at least one flue channel and multiple flue risers in fluid communication with the flue channel, and at least one shuttle defining multiple exhaust shafts arranged above the multiple flue risers, wherein at least one radiation blockers is arranged above outlet ports of the at least one shuttle. Such a configuration blocks line-of-sight radiant heat transfer between (i) heated surfaces above the shuttle within the kiln housing and (ii) outlet ports of the exhaust shafts, thereby enhancing radiant heat retention and reducing temperature variability within a kiln cavity of the shuttle kiln.

Abstract: A method and system for real-time river water level monitoring and early warning based on deep learning are provided. The method includes: remote sensing images of a target watershed and real-time hydrological data from monitoring points are acquired, and a topological analysis of water flow direction is performed on the remote sensing images to construct a water flow topological network. A dynamic change feature analysis of a watershed structure is performed on the remote sensing images to generate dynamic change data, and a topological evolution fitting is performed based on the dynamic change data on the water flow topological network to obtain a dynamic topological evolution network. A multi-scale temporal trend evolution analysis is performed on the real-time hydrological data to generate temporal evolution features. An evolution feature spatial location mapping of the dynamic topological evolution network is performed to construct a three-dimensional hydrological evolution model.

Abstract: A memory system package structure and a manufacturing method thereof are disclosed. The memory system package structure includes a memory chip, including a first surface; a memory controller positioned on the first surface; and a redistribution layer positioned on a side of the memory controller facing away from the memory chip, the memory chip and the memory controller being electrically connected with the redistribution layer, respectively.

Abstract: A power bank with a docking station function includes a video conversion unit, a data conversion unit, a controller, and an analog switch unit. The controller is electrically connected to the analog switch unit. The analog switch unit is electrically connected to the data conversion unit. The video conversion unit is electrically connected to a Type-C main interface. The video conversion unit is electrically connected to the data conversion unit. The analog switch unit is electrically connected to a USB interface. The controller controls an S pin of the analog switch unit to be at a low level or a high level through a PA6 pin of the controller so that the USB interface has a data transmission function or a fast charging function.

Abstract: Implementations provide package structures, apparatuses, and methods for preparing the same. In an implementation, a package structure comprises: a mounting substrate; a first die disposed above the mounting substrate, the first die comprising a first main surface, a second main surface opposite to the first main surface, and an active device formed adjacent to the first main surface; and a second die interposed between the first die and the mounting substrate, wherein the first main surface of the first die faces towards the second die.

Abstract: An electro-plastic shape control roller system based on transverse partitioning and independent control is provided. The electro-plastic shape control roller system includes a shape control roller mandrel, conductive copper rings, insulating ceramic rings, a shock-absorbing rubber sleeve, an insulating ceramic roller sleeve, and conductive rotary joints, etc. This system constructs a transversely partitioned electro-plastic shape control roller by alternately arranging the conductive copper rings and the insulating ceramic rings. During operation, a strip is wrapped at a certain angle above the electro-plastic shape control roller to ensure a tight contact between the strip and the conductive copper rings. According to the principle of minimum resistance in the conductive copper ring-strip-adjacent conductive copper ring pattern, the electro-plastic shape control roller system controls the on/off of each set of independent conductive copper rings through the external control circuit.

Abstract: A B-cell specific octamer-binding protein 1 super-enhancer ribonucleic acid (BOB1-seRNA) and an application thereof are provided. The nucleotide sequence of the BOB1-seRNA is shown in SEQ ID NO: 1. Through experiments, it further confirms that the BOB1-seRNA is downregulated in patients with coronary heart disease and can be used in preparation of a product for diagnosing or predicting the coronary heart disease. The use of this molecular marker can be used for early diagnosis of the coronary heart disease, which is rapid and effective. It is not only of great significance for early treatment of the coronary heart disease and saving medical costs, but also provides therapeutic targets and important basis for clinical applications such as gene therapy and drug therapy.

Abstract: The present invention relates to a microfluidic chip, a reagent output structure thereof comprising a reagent storage chamber, a first centrifugal-force flow channel and a time delay unit. The time delay unit comprises a first diverting flow channel, a capillary-force flow channel, a second diverting flow channel and a second centrifugal-force flow channel. The first centrifugal-force flow channel extends away from the centre of rotation. The other end of the first diverting flow channel is in communication with one end of the capillary-force flow channel, the capillary-force flow channel extends towards the centre of rotation, the other end of the capillary-force flow channel is in communication with one end of the second diverting flow channel, the other end of the second diverting flow channel is in communication with the second centrifugal-force flow channel, and the second centrifugal-force flow channel extends away from the centre of rotation.

Abstract: A bearing assembly including: a housing defining a housing bore extending therethrough; a first chamfered surface of the housing at a first end of the housing bore; a second chamfered surface of the housing at a second end of the housing bore; a bearing shell seated in the housing bore, the bearing shell defining an aperture configured to receive a shaft, the bearing shell is wider than the housing bore; a first flange of the bearing shell seated on the first chamfered surface of the housing; and a second flange of the bearing shell seated on the second chamfered surface of the housing.

Abstract: An allulose 3-epimerase mutant, a genetically engineered bacterium expressing the mutant, and an immobilized allulose 3-epimerase enzyme and an immobilization method thereof are described. A high-throughput screening method is used to obtain an allulose 3-epimerase mutant efficiently expressed in a fermentation process, which can catalyze efficient conversion of fructose to D-allulose, providing an efficient production path for key enzymes required in a D-allulose production process. Additionally, the allulose 3-epimerase is bonded to an immobilizing resin to prepare an immobilized allulose 3-epimerase enzyme. The immobilized enzyme can be applied to batch or continuous reactions to catalyze efficient conversion of fructose to D-allulose.

Abstract: A video frame extraction method includes uploading a video through an online access link and locally caching the video to a local database; generating a local access link of the video according to the online access link that includes a local cache identifier and a local video identifier; in response to a video frame extraction request for the video, obtaining a playback time of target video frame of the video for extracting and triggering an access request and carrying the playback time of target video frame; forwarding the access request to the local database in response to identifying the local cache identifier from the local access link, to enable the local database to return a locally cached video that matches based on the local video identifier; and obtaining the locally cached video returned by the local database and extracting a video frame matching the playback time of target video frame.

Abstract: This application discloses a channel sounding method and a communication apparatus. One example method includes: generating, by a first access point, a construction frame, wherein the construction frame indicates a second access point to perform channel sounding, the construction frame comprises identifier information of the second access point, identifier information of at least one station, and a first sounding dialog token number, the at least one station is associated with the first access point, and the first sounding dialog token number is used to identify the construction frame; and sending, by the first access point, the construction frame.

Abstract: The present application provides chip package structures and manufacturing methods thereof. In one example, the chip package structure includes: a base board including a grounding pad; a chip assembly located at a first surface of the base board; a package body covering the chip assembly, wherein a side wall of the package body is located in an extension direction of a side wall of the base board, and the side wall of the package body and the first surface of the base board have an acute included angle therebetween; and a shielding layer covering the side walls of the package body and the base board and electrically connected with the grounding pad.

Abstract: A micro LED element, a micro LED display panel, and a display device are provided. The micro LED display panel includes a micro LED chip including a driving layer and a micro LED array disposed on the driving layer, the driving layer being configured to receive signals for driving the micro LED array; a flexible circuit board (FCB) disposed adjacent to the micro LED chip and configured to couple to the micro LED chip; a molded layer disposed to join the micro LED chip and the FCB together, to leave an open region above the micro LED array; and a transparent cover disposed within the open region to shield a top surface of the micro LED array.