Abstract: A titanium alloy blade tip with a wear-resistant protective coating and a preparation method thereof are provided. The method includes: (1) spraying MCrAlY alloy powder on a surface of a titanium alloy blade tip by high velocity oxygen fuel (HVOF) spraying at a spraying distance of 300-400 mm to obtain the titanium alloy blade tip with a MCrAlY layer on the surface; where M is one of Ni and NiCo; (2) pre-plating Ni at a current density of 4-10 A/dm2; (3) placing the pre-plated titanium alloy blade tip in a Watt solution, covering a surface of the pre-plated titanium alloy blade tip obtained in the step (2) with abrasive particles, and then performing composite electroplating at a current density of 0.5-2 A/dm2. In the method, the wear-resistant protective coating with the high adhesion strength is prepared on the titanium alloy blade tip, and the wear-resistant protective coating has good wear resistance.

Abstract: A roller-type conveying device for fruit and vegetable sorting includes a chain assembly and a conveying unit. Fruits and vegetables are placed on the conveying unit. The chain assembly includes a drive chain and a chain support bar, and the drive chain is arranged on the chain support bar. A conveying unit is arranged along a drive chain. The conveying unit includes outer rollers, a roller frame, pin shafts, rubber bushings, a roller shaft, and a support base. The two outer rollers are fixed coaxially on the two ends of the roller shaft. The roller shaft is equipped with the rubber bushing. The roller shaft is movably fitted into a special-shaped hole slot on the top of the roller frame. The roller shaft is arranged axially perpendicular to the transmission direction of the drive chain. The support base is mounted on the drive chain.

Abstract: A method, apparatus, device, and medium for action execution are provided. In a method, a set of actions to be executed at a first device is determined from a plurality of actions based on a first action model at the first device. A data accumulated indicator associated with the set of actions is obtained, the data accumulated indicator indicating an amount of data to be sent from the first device to a second device associated with the first device. In response to that the data accumulated indicator meets a predetermined condition, parameter data associated with the set of actions is transmitted to the second device to cause the second device to update a second action model at the second device using the parameter data, the parameter data comprising reward data and consumption data associated with the set of actions respectively.

Abstract: A dispatching method for an electric-hydrogen energy system considering flexible hydrogen demand includes establishing an electric load flexibility equation, a power purchase and sale constraint equation, a renewable energy output constraint equation, a hydrogen load flexibility equation, an electricity-to-hydrogen production safety operation constraint equation and an electric power balance constraint equation, establishing an electric-hydrogen energy system dispatching model with the lowest operating cost of the electric-hydrogen energy system within the dispatching cycle as an objective function, and solving the electric-hydrogen energy system dispatching model to obtain an optimal dispatching result. As compared with the prior art, the present invention can effectively solve the problem of coordination between electric and hydrogen energy flows, while taking into account the flexibility of electric and hydrogen loads, further providing additional flexibility to the operation of the system.

Abstract: Provided in the present disclosure are a detection substrate and a detection apparatus. The detection substrate includes: a base substrate; a plurality of pixel driving circuits, which are located on the base substrate; a first insulating layer, which is located on the side, which faces away from the base substrate, of a layer where the pixel driving circuits are located, where the first insulating layer includes a plurality of first through holes; and a plurality of photosensitive devices, which are located on the side of the first insulating layer that faces away from the layer where the pixel driving circuits are located.

Abstract: This application discloses a touch panel and a human-computer interaction method based on a touch panel. The touch panel includes a base substrate, at least one pressure detector and at least one actuator arranged on the base substrate, and a driving circuit. The at least one pressure detector is electrically connected to the driving circuit, and the driving circuit is electrically connected to the at least one actuator.

Abstract: The disclosure provides a method, apparatus, electronic device, and storage medium for controlling a user state. In some embodiments, the disclosure provides a method for controlling the user state. The method is applied to collaborative office software and includes: determining, for a user of the collaborative office software, at least one user state as a preset user state in advance; cancelling activation of a further automatically activated user state during an activation period of the preset user state; or suspending activation of a further automatically activated user state during the activation period of the preset user state. The method in embodiments of the disclosure prevents the automatically activated user state from replacing the preset user state, thereby improving the user experience.

Abstract: Disclosed are an information processing method and a terminal device. The method comprises: acquiring first information, wherein the first information is information to be processed by a terminal device, calling an operation instruction in a calculation apparatus to calculate the first information so as to obtain second information, and outputting the second information. By means of the examples in the present disclosure, a calculation apparatus of a terminal device can be used to call an operation instruction to process first information, so as to output second information of a target desired by a user, thereby improving the information processing efficiency. The present technical solution has advantages of a fast computation speed and high efficiency.

Abstract: There is provided a method for determining text blocks of a PDF text, including: acquiring information of characters of the PDF text; performing an initial division according to gap outliers of the PDF text in a transverse direction and a longitudinal direction, and adding block tags of first text blocks to the information of characters; sequentially processing inaccurate lines and inaccurate words in each first text block according to baselines of characters, character lengths, character spaces and character indexes; performing a baseline arrangement on lines of the PDF text; sequentially comparing two lines to form second text blocks; and sequentially comparing two second text blocks to identify whether to perform a secondary merging and a secondary division.

Abstract: The present disclosure provides a preparation method of 2,6-dioxospiral [4,5] decane derivatives and their salts, which has mild reaction conditions, high reaction conversion rate, simple post-processing, and high product purity and is suitable for industrial production.

Abstract: Camera platform techniques are described. In an implementation, a plurality of digital images and data describing times, at which, the plurality of digital images are captured is received by a computing device. Objects of clothing are recognized from the digital images by the computing device using object recognition as part of machine learning. A user schedule is also received by the computing device that describes user appointments and times, at which, the appointments are scheduled. A user profile is generated by the computing device by training a model using machine learning based on the recognized objects of clothing, times at which corresponding digital images are captured, and the user schedule. From the user profile, a recommendation is generated by processing a subsequent user schedule using the model as part of machine learning by the computing device.

Abstract: Methods, systems, and computer-readable media for event extraction from documents with co-reference are disclosed. An event extraction service identifies one or more trigger groups in a document comprising text. An individual one of the trigger groups comprises one or more textual references to an occurrence of an event. The one or more trigger groups are associated with one or more semantic roles for entities. The event extraction service identifies one or more entity groups in the document. An individual one of the entity groups comprises one or more textual references to a real-world object. The event extraction service assigns one or more of the entity groups to one or more of the semantic roles. The event extraction service generates an output indicating the one or more trigger groups and one or more entity groups assigned to the semantic roles.

Abstract: A display method for a video playing progress bar, an apparatus, a device, and a storage medium are provided. The method includes: acquiring a played duration of a target video when monitoring that a current time reaches a preset time period; determining a proportional relationship between the played duration of the target video and a total video duration; determining position information of a progress standard bar on the video playing progress bar according to the proportional relationship; determining an end position of a first color bar and a start position of a second color bar based on the position information; drawing the first color bar based on the end position of the first color bar, and drawing the second color bar based on the start position of the second color bar; and displaying the video playing progress bar of the target video based on the first and second color bar.

Abstract: Camera platform techniques are described. In an implementation, a plurality of digital images and data describing times, at which, the plurality of digital images are captured is received by a computing device. Objects of clothing are recognized from the digital images by the computing device using object recognition as part of machine learning. A user schedule is also received by the computing device that describes user appointments and times, at which, the appointments are scheduled. A user profile is generated by the computing device by training a model using machine learning based on the recognized objects of clothing, times at which corresponding digital images are captured, and the user schedule. From the user profile, a recommendation is generated by processing a subsequent user schedule using the model as part of machine learning by the computing device.

Abstract: A dropsonde with a dandelion-like structure includes a support system, a rotor wing system, a rotor wing restraint system, a sensing main control system and an electrical damping system, the support system further comprising a hollow upper strut, a hollow lower strut, an upper disc fixedly connected to top of the upper strut and a lower disc fixedly connected to top of the lower strut, the upper strut is partially inserted into the lower strut, and the upper parts of the upper disc and the upper strut are exposed outside the lower strut; wherein the rotor wing system includes a plurality of upper rotor wings, a plurality of lower rotor wings, a plurality of upper springs, a plurality of lower springs, a plurality of upper connecting members and a plurality of lower connecting members.

Abstract: The present disclosure provides a video processing method, apparatus, and device, and a storage medium, and the method includes: in a case where it is determined that a type of a target video belongs to a preset video type, recording a first timestamp when a play method call event for the target video is monitored, the preset video type being a video type that indicates only supporting playing once for each user; recording a second timestamp when a stop callback event corresponding to the play method call event is monitored; calculating a time difference between the second timestamp and the first timestamp and determining whether the time difference is smaller than a preset time threshold; and continuing to play the target video when the time difference is determined to be smaller than the preset time threshold.

Abstract: A sensor package structure includes a substrate, a sensor chip disposed on and electrically coupled to the substrate, a plurality of adhesive rings disposed on the sensor chip, a plurality of filtering lenses respectively adhered to the adhesive rings, and an encapsulant that surrounds the above components. A sensing region of the sensor chip has a layout boundary and a plurality of sub-regions that are defined by the layout boundary and that are separate from each other. The adhesive rings are disposed on the sensing region, and each of the adhesive rings surrounds one of the sub-regions. Each of the filtering lenses, a corresponding one of the adhesive rings, and a corresponding one of the sub-regions jointly define a buffering space. The encapsulant is formed on the substrate and covers the layout boundary of the sensor chip.

Abstract: The present utility model provides a spinning bike with a double-flywheel structure, which comprises a frame, wherein two concentric and synchronous rotating flywheels are arranged in a middle position of the frame, a transmission disc is arranged on the frame and drives the two flywheels to synchronously rotate through a transmission member, and a damping magnetic resistance is arranged on the frame between the transmission disc and the flywheels. According to the present utility model, a single flywheel is replaced with a parallel double-flywheel structure without reducing flywheel weight, so as to lower a center of gravity of an entire spinning bike and improve the stability of product, and the diameter of the flywheel is smaller than that of the conventional flywheel, which can have the effect of more timely braking feedback and increased safety.

Abstract: Disclosed are a borate MWDC with a low dielectric constant and a preparation method thereof by cold sintering. The method for preparing a borate MWDC with a low dielectric constant by cold sintering, including: subjecting a boron source and a metal source to first mixing to obtain a first mixture; subjecting the first mixture to presintering to obtain a presintered material; subjecting the presintered material and a boron oxide solution to second mixing to obtain a second mixture; and subjecting the second mixture to cold sintering to obtain the borate MWDC with the low dielectric constant.

Abstract: This disclosure relates to antibodies, antigen-binding fragments, protein constructs, and chimeric antigen receptors that bind to a complex comprising an AFP peptide and an MHC molecule, and the uses thereof.