Abstract: A substation inspection device includes a rack, an anti-vibration mechanism, a camera apparatus and a lock-stop apparatus. The anti-vibration mechanism is mounted on the rack. The camera apparatus includes a first mounting seat and a camera assembly. The first mounting seat is mounted on the rack through the anti-vibration mechanism. The camera assembly is mounted on the first mounting seat. The lock-stop apparatus is mounted on the rack and is configured to fix the camera apparatus.

Abstract: A cylindrical coordinate shearing type fruit picking end effector and a use method therefor are provided. The cylindrical coordinate shearing type fruit picking end effector includes a rack, a fruit clamping mechanism, a rotary motion mechanism, a rotary angle detection mechanism, a linear motion mechanism, a shearing motion mechanism, and a linear distance detection mechanism; where the linear distance detection mechanism is arranged at a front end of the linear motion mechanism; the shearing motion mechanism is arranged at a rear end of the shearing motion mechanism; the linear motion mechanism is arranged at a top end of the rotary motion mechanism; the rotary motion mechanism is arranged at a rear end of the rack; the rotary angle detection mechanism is arranged at a front end of the rotary motion mechanism; and the fruit clamping mechanism is arranged at a front end of the rack.

Abstract: A substation inspection device includes a rack, an anti-vibration mechanism, a camera apparatus and a lock-stop apparatus. The anti-vibration mechanism is mounted on the rack. The camera apparatus includes a first mounting seat and a camera assembly. The first mounting seat is mounted on the rack through the anti-vibration mechanism. The camera assembly is mounted on the first mounting seat. The lock-stop apparatus is mounted on the rack and is configured to fix the camera apparatus.

Abstract: A display panel and a preparation method therefor, and a display device are provided. The display panel includes first and second substrates oppositely provided, and a polymer-stabilized liquid crystal layer; multiple sub-pixels include at least one first sub-pixel emitting light from a side of the second substrate away from the first substrate and at least one second sub-pixel emitting light from a side of the first substrate away from the second substrate; the first substrate in a first sub-pixel has a first shielding pattern, and an orthographic projection of the pixel electrode therein on a display panel plane is within that of the first shielding pattern on the first substrate; the second substrate in a second sub-pixel has a second shielding pattern, and an orthographic projection of the pixel electrode therein on the display panel plane is within that of the second shielding pattern on the second substrate.

Abstract: This disclosure relates to collecting and analyzing data associated with a well site to predict instances of liquid loading that occurs (or that will occur) in a particular well environment. Systems herein involve training a liquid loading classification model based on historical data to predict whether or not liquid loading is occurring or will occur based on real-time sensor data that is collected by a plurality of sensors at the well site. The data is preprocessed and labeled in a manner that provides an efficient training process and which enables a machine learning model, such as a recursive neural network (RNN), to accurately predict when liquid loading will occur such that a presentation may be generated and presented to an individual with the ability to prevent or otherwise mitigate the liquid loading at a time when inefficiencies and other issues can be prevented.

Abstract: Disclosed are emulsion gel with both a freshness indication and a low migration rate, and a preparation method therefor. Lipase and organic acid are used and subjected to hydrophobic modification of anthocyanins to obtain acylated anthocyanins, the acylated anthocyanins and oil-phase gel are then dissolved in vegetable oil to form an oil phase, while a sodium alginate aqueous solution is used as a water phase, the oil phase and the water phase are mixed and subjected to high-speed shearing, and calcium carbonate and glucono-?-lactone are finally added for high-speed shearing to form emulsion gel. The emulsion gel prepared in the present disclosure has both a freshness indication and a low migration rate, and the preparation method of the present disclosure is simple, green, pollution-free and low energy consumption.

Abstract: Methods, systems, apparatus, including computer programs encoded on computer storage media, for reclaiming storage space in a storage environment. In one aspect, the method includes actions of aggregating data that is indicative of access to one or more data objects, determining a future storage cost associated with each of a plurality of data objects, determining an access window for each of the plurality of data objects, identifying a data object based on (i) the future storage cost that satisfies a predetermined threshold and (ii) a data object access window, providing a notification to a user device that requests feedback from a user indicating whether the data object can be deleted, and in response to receiving data that indicates that the data object can be deleted, generating an instruction to cause deletion of the data object upon the expiration of the access window.

Abstract: A method of training a speech recognition model is provided. The method includes that: speech data of each of a plurality of training samples is inputted into a teacher model and a to-be-trained speech recognition model separately. Additionally, an embedding outputted by the teacher model and encoded data outputted by the to-be-trained speech recognition model are obtained. Furthermore, quantized codebook data is obtained by performing a multi-codebook quantization on the embedding. A loss is calculated based on the encoded data, the quantized codebook data, and text data in the training sample. Moreover, a trained speech recognition model is obtained by stopping training the to-be-trained speech recognition model when the loss is less than or equal to a preset loss threshold and/or trained times is greater than preset trained times.

Abstract: A message display method and an electronic device are provided. The method specifically includes: The electronic device displays a first user chat interface of an instant messaging application, where the first user chat interface includes a first video message, the first video message includes a first region and a second region, the first video message is associated with a first video, the first video includes first audio and at least one frame of first image, the first region corresponds to the first audio, and the second region corresponds to the at least one frame of first image. The electronic device plays the first video in a first manner in response to an operation performed by a user on the first region. The electronic device plays the first video in a second manner in response to an operation performed by the user on the second region.

Abstract: A battery cell, a battery and an electric device are disclosed. The battery cell includes a housing, an electrode assembly, a detection assembly and a protective assembly. The housing includes an accommodation cavity. The electrode assembly is accommodated in the accommodation cavity. The detection assembly is connected to the housing and is used to detect an operation state of the battery cell. The protective assembly protrudes from the housing and is arranged on a same side as the detection assembly so as to protect the detection assembly. The embodiments of the application can effectively improve safety and reliability of the battery cell.

Abstract: A silicon powder molding method, a silicon block, and their applications in the field of single crystal growth technology are provided. The silicon powder molding method of this application includes the following steps: placing a mold filled with silicon powder under a first pressure P1 condition, maintaining the first pressure condition P1 for a continuous duration of a first pressure time T1, and satisfying 50 MPa?P1?600 MPa, 7 minutes ?T1?15 minutes to obtain a silicon block. A medium applying the first pressure P1 is a liquid. Through pressure control, the molded silicon block is easily removed from the mold without breaking and generating dust. The silicon block is easy to crush when filling and has a controllable particle size distribution after crushing. The silicon block can be directly used for the production of Czochralski grown single crystals, increasing a loading density to 0.18 g/cm3˜0.25 g/cm3.

Abstract: A charging method of silicon material and a preparation method for single crystal are provided. The charging method includes: disposing the first material layer in the crucible; and disposing a second material layer on a side of the first material layer away from a bottom of the crucible, to cover the first material layer during vacuuming. The method for preparing a single crystal, using the silicon charging method described above. The preparation method for single crystal used the charging method for silicon material includes: covering a pot lid on the crucible to define a closed crucible body, and vacuuming the closed crucible body; lifting the closed crucible body into a single crystal furnace, and relieving pressure from the closed crucible body.

Abstract: A silicon powder forming method, a silicon block, and a use thereof are provided, which relates to technical field of single crystal growth. The silicon powder forming method according to the present application includes: placing a mold filled silicon powder in a condition for first pressure P1 for a first pressure time T1 to obtain a silicon block, wherein the first pressure P1 and the first pressure time T1 satisfy: 50 MPa?P1?600 MPa, 7 min?T1?15 min. By pressure control, the molded silicon block is easily removed from the mold without crushing dust. The silicon block obtained is easy to crush upon charging, and the particle size distribution of the crushed silicon block is easy to control, resulting in raising less. The silicon block obtained can be directly used for production of Czochralski single crystal, and the charge density is increased to 0.18 g/cm3˜0.25 g/cm3.

Abstract: A method for task scheduling includes, if it is determined that there is an idle task scheduling token, causing a first computing resource in a computing system to acquire the idle task scheduling token as a first task scheduling token to execute a first task in a task queue. If it is determined that a second task having a higher priority than the first task is to be executed, the first computing resource is to discard the first task scheduling token to switch from executing the first task to executing the second task. If it is determined that the execution of the second task is finished, the first computing resource is to retrieve the first task scheduling token to continue the execution of the first task.

Abstract: The present disclosure provides a metasurface device and a method for manufacturing a metasurface device, an antenna and a communication device. The metasurface device includes: a substrate; and a metal layer on the substrate and having a plurality of openings therein; and a plurality of phase control structures on a side of the metal layer away from the substrate, and in one-to-one correspondence with the plurality of openings; and each phase control structure includes a baffle and at least one micro-mechanical driver, the baffle is connected to the at least one micro-mechanical driver, which is configured to actuate the baffle to shield a corresponding opening in response to a received signal.

Abstract: A method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, comprising the following steps: a) mixing 3-chloropropionyl chloride, a first solvent, trimethylsilyl cyanide and cyanide salt, performing a substitution reaction to obtain a material solution containing 4-chloro-2-oxobutyronitrile, then performing distillation under reduced pressure, and performing separation to obtain 4-chloro-2-oxobutyronitrile intermediate; b) subjecting the 4-chloro-2-oxobutyronitrile intermediate obtained in step a) and methyl phosphonite diester to Arbuzov reaction in a second solvent in the presence of cuprous iodide to obtain a material solution of (3-cyano-3-oxopropyl) methyl phosphinate, and performing purification to obtain crude (3-cyano-3-oxopropyl) methyl phosphinate; c) mixing the obtained crude (3-cyano-3-oxopropyl)methyl phosphinate with hydrochloric acid, performing hydrolysis reaction, and then performing purification treatment to obtain 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid.

Abstract: The present invention provides a method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, comprising the following steps: a) mixing acryloyl chloride, a first solvent, a polymerization inhibitor, a catalyst and potassium ferrocyanide, performing a substitution reaction, and performing distillation under reduced pressure to obtain an acryloyl cyanide intermediate; b) mixing the acryloyl cyanide intermediate obtained in step a) with hydrochloric acid and a polymerization inhibitor, performing a hydrolysis reaction, and then performing purification treatment to obtain crude 2-carbonyl-3-butenoic acid; c) mixing the crude 2-carbonyl-3-butenoic acid obtained in step b) with a second solvent and methyldichlorophosphine, and performing an addition reaction to obtain a solution containing diacyl chloride; d) mixing the solution containing diacyl chloride obtained in step c) with water, performing a hydrolysis reaction, and performing purification to obtain 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid.

Abstract: Provided is a method for preparing 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid, comprising the following steps: a) mixing methylphosphonite diester, carboxylic acid and acryloyl cyanide, performing addition reaction, and performing distillation under reduced pressure to obtain a material solution of (3-cyano-3-carbonylpropyl)methylphosphonate; b) mixing the material solution of (3-cyano-3-carbonylpropyl)methylphosphonate obtained in step a) with water uniformity, cooling to 10° C.-40° C., then adding hydrochloric acid dropwise for acidification, and after the dropwise addition being completed, continuing stirring for 0.1 h-1 h, then performing hydrolysis reaction, and finally performing purification treatment to obtain 4-(hydroxymethylphosphinyl)-2-oxobutanoic acid. In the provided preparation method, cyanation reaction is not required, which avoids the use of cyclic phosphonic anhydride that is high in cost and difficult to obtain and the highly toxic sodium cyanide.

Abstract: An enhanced video call method is provided, including: A first electronic device establishes a video call with a second electronic device; if the first electronic device detects a first operation of a user on the screen sharing control, the first electronic device sends, to the second electronic device, a first request for sharing a screen of the first electronic device; and if the first request is agreed to by the second electronic device, the first electronic device displays a shared interface in a second display area of the first electronic device, and the first electronic device sends display data of the shared interface of the first electronic device to the second electronic device.

Abstract: Disclosed is a method for preparing a heterogeneous metal composite structure for medical implantation, including the steps of: step 1, preparing titanium alloy powder into a porous skeleton according to different printing strategies; step 2, filling magnesium after being melted into pores of the porous skeleton; and step 3, cooling a titanium-magnesium interpenetrating phase composite structure prepared in step 2 to room temperature, and covering a surface of the titanium-magnesium interpenetrating phase composite structure with a hydroxyapatite coating. In the present disclosure, a porous lattice dot-array structure of titanium alloy is used as a skeleton, and the skeleton pore is filled by pressureless infiltration of magnesium or hot isostatic pressure.