Abstract: A light-emitting diode and a white light-emitting device are provided. The light-emitting diode includes a p-type semiconductor layer, an n-type semiconductor layer, and a light-emitting stacked layer disposed therebetween. The light-emitting stacked layer includes alternately-stacked well layers and barrier layers. The light-emitting stacked layer includes one or more second, third, fourth, and fifth well layers that have different indium concentrations, such that a C2 indium concentration, a C3 indium concentration, a C4 indium concentration, and a C5 indium concentration are respectively defined, and a relationship of the indium concentrations is C5>C4>C3>C2. The light-emitting stacked layer includes an n-side proximate section, a middle section, and a p-side proximate section along a thickness direction. The third well layer is disposed in the middle section, and the third well layer is disposed between the two second well layers.

Abstract: Small interfering RNAs (siRNA) having specific modification patterns to improve interference efficiencies thereof. The modification patterns each comprises a combination of 2?-O methyl modification, 2?-O-fluoro-modification, and phosphorothioate (PS) bonds at defined positions in the sense strand and anti-sense strand of each siRNA, and optionally 5? phosphate modifications.

Abstract: An autonomous cleaning device, includes: a mobile platform, configured to move autonomously on a cleaning surface; and a cleaning module, disposed on the mobile platform and including a wet cleaning module, configured to clean at least part of the cleaning surface in a wet cleaning mode.

Abstract: A method may include at least partially initializing a trellis of an SE engine at least partially based on predetermined state information about a communication channel associated with an incoming data stream; and processing, via the MLSE engine, the incoming data stream to further initialize the trellis and decode the incoming data stream.

Abstract: A magnetic resonance imaging (MRI) scanning system and a method is presented. The method comprises: preconfiguring a plurality of scan configurations, the plurality of scan configurations corresponding to a plurality of scan ranges of a subject to be scanned, and each of the scan configurations comprising an implant-related MRI scan parameter; and executing a scan procedure on the subject to be scanned using at least one of the preconfigured plurality of scan configurations.

Abstract: A flow electrode capacitive deionization system and a method for recovering phosphorus in phosphogypsum leachate and synchronous performing brine desalination belong to the technical field of wastewater treatment and recycling. The flow electrode capacitive deionization system includes a phosphorus recovery electrodeionization module and a desalination electrodeionization module. A first flow electrode solution reservoir, a phosphorus recovery electrodeionization module cathode flow electrode chamber, and a desalination electrodeionization module anode flow electrode chamber are interconnected in a circulation. A second flow electrode solution reservoir, a phosphorus recovery electrodeionization module anode flow electrode chamber, and a desalination electrodeionization module cathode flow electrode chamber are interconnected in a circulation. Two independent flow electrode solution circulation loops are formed.

Abstract: A semiconductor chiplet device includes a first die, a second die, a decoupling circuit and an interposer. The interposer includes a plurality of power traces and a plurality of ground traces. The first die and the second die are arranged on a first side of the interposer according to a configuration direction, and are coupled to the power traces and the ground traces. The decoupling circuit is arranged on a second side of the interposer, and is coupled to the power traces and the ground traces. The power traces and the ground traces are staggered with each other, and an extending direction of the ground traces and the power traces is the same as the configuration direction.

Abstract: The present disclosure provides a communication wide-area coverage system and method based on reconfigurable intelligent surface (RIS) technology. The system includes a RIS base station, a communication board, a controller, and a power supplier. The communication board communicates with a target cell to obtain a communication rate and position coordinates of a target coverage cell and feeds back the communication rate and position coordinates to the controller. The controller calculates a relative position between the target coverage cell and the RIS base station according to the obtained position information of the target coverage cell, and controls the RIS base station according to the relative position and the communication rate to generate a beam covering the target coverage cell. The RIS base station uses a RIS phased-array antenna integrated with an electronic device without requiring a radio-frequency transmitter and receiver (TR) component and a large number of phase shifting devices.

Abstract: An active noise cancellation (ANC) method applied to a headset includes obtaining a first group of filtering parameters, and performing noise cancellation using the first group of filtering parameters. The first group of filtering parameters is one of N1 groups of filtering parameters prestored in the headset. The N1 groups of filtering parameters are respectively used to perform noise cancellation on ambient sound in N1 leakage states. The N1 leakage states are formed by the headset and N1 different ear canal environments. N1 is a positive integer greater than or equal to two.

Abstract: Systems, apparatuses, and methods are described for generating unique identifiers. Identifiers may be organized or grouped by different topics. Identifiers may be requested, generated, stored as groups, and may be allocated from those groups based on requests for identifiers to improve the efficiency of one or more computing devices or systems. The size of each group of identifiers may be adjusted.

Abstract: The present disclosure relates to a moving device, including a body and wheels arranged at a bottom of the body to drive the moving device to move. The wheel includes: a rim; and a tire. The tire is detachably connected to the rim, and includes a first end and a second end detachably butt-joined, such that the tire can be disconnected at the first end and the second end to allow the tire to be detached relative to the rim. When the tire is damaged and needs to be replaced, the tire is disconnected at the first end and the second end so as to be gradually separated from the rim, and thus, a user can replace the tire without detaching any part of the body.

Abstract: The present disclosure relates to a high-strength steel and a method of manufacturing the same. Slab with specific composition is subjected to a rolling process and a heat treatment process with specific conditions for changing the metallographic structure of the obtained steel. The obtained steel includes at least 95% tempered martensite, and has a high tensile strength and a high yield strength.

Abstract: An electrochemical device includes a cathode including a cathode current collector, a first cathode active material layer including a first cathode active material, and a second cathode active material layer including a second cathode active material. The first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is formed on at least one surface of the cathode current collector. The first cathode active material layer is firstly formed on the cathode current collector, and the second cathode active material layer is secondly formed on the first cathode active material layer, then the second cathode active material layer and the first cathode active material layer are pressed together.

Abstract: Atomically dispersed platinum-group metal-free catalyst and method for synthesizing the same. According to one embodiment, the catalyst is made by a method in which, in a first step, an Mn-doped ZIF-8 catalyst precursor is prepared by reacting a first solution comprising zinc nitrate hexahydrate and manganese chloride dissolved in an acid/water solution with a second solution comprising 2-methylimidazole dissolved in water. Then, in a second step, the Mn-doped ZIF-8 catalyst precursor is thermally activated, i.e., carbonized, to form an Mn—N—C catalyst. Preferably, the thermal activation is performed in a multistep fashion, first at a lower temperature of about 800° C. and then at a higher temperature of about 1100° C. After carbonization, the catalyst material may optionally be subjected to an absorption process, followed by a second thermal activation. The absorption process may involve dispersing the catalyst material in a solution of manganese chloride and urea in hydrochloric acid and isopropanol.

Abstract: The present disclosure relates to a backlight module and a display device. The backlight module comprises: a lamp panel comprising a first surface and a second surface opposite to each other, the first surface comprising a light source array, and the second surface comprising a light source array driving circuit and an external terminal; a first back plate connected with the lamp panel at a side of the second surface of the lamp panel, and comprising first avoiding openings corresponding to the light source array driving circuit and the external terminal; a second back plate connected with the first back plate at a side of the first back plate away from the lamp panel, and comprising a second avoiding opening corresponding to the external terminal.

Abstract: The present invention relates to a subway vehicle electronic record system based on blockchain technology, which mainly includes business view module, record information maintenance module, statistical analysis module, record information management module, system management module, and blockchain foundation platform. The invention comprehensively makes use of blockchain, database and other technologies to normalize heterogeneous data of subway vehicle record.

Abstract: Methods, apparatuses, and computer-readable storage media are provided. An example method includes obtaining, by a first network device, a segment routing (SR) policy, where the SR policy comprises identification information, and the identification information indicates a type of at least one of the SR policy, a candidate path in the SR policy, or a segment list in the candidate path, and determining, by the first network device based on the identification information, a processing behavior corresponding to at least one of the SR policy, the candidate path in the SR policy, or the segment list in the candidate path.

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: Disclosed are a method and apparatus for compressing a topology recognition model, an electronic device, and a medium. The method includes: pruning a to-be-compressed model to obtain a pruned model, and training the pruned model to obtain a trained pruned model; quantifying a bit quantity of a weight parameter of each neural network layer in the trained pruned model from a first bit quantity to a second bit quantity to obtain a highly-quantified pruned model, and training the highly-quantified pruned model to obtain a trained highly-quantified pruned model; using the trained highly-quantified pruned model as the to-be-compressed model, continuously pruning and quantifying the to-be-compressed model until a compressed topology recognition model is obtained, and deploying the compressed topology recognition model on an Internet of Things in Power Systems (IOTIPS) terminal, to reduce a size of the topology recognition model while ensuring the topology recognition model meets an accuracy requirement.