Abstract: A telescopic support includes a lower step sleeve and an upper step sleeve. The lower step sleeve has an inner sliding guide extending longitudinally in its inner surface and an inner-diameter adapter positioned on its inner surface and at its upper end. The upper step sleeve has an outer sliding guide extending longitudinally in its outer surface and an outer-diameter adapter positioned on its outer surface and at its lower end. The upper step sleeve is slidably received in the lower step sleeve. The inner sliding guide and the outer sliding guide are engageable with each other to enable a linear sliding movement between the lower step sleeve and the upper step sleeve. The inner-diameter adapter and the outer-diameter adapter are lockable with each other in a manner of longitudinal snap fit when the upper step sleeve is extended to its outermost position from the lower step sleeve.

Abstract: The present disclosure provides a discretization modeling method for electro-osmotic drag effect of water conservation in a fuel cell, comprising: establishing a conservation equation of membrane water in the fuel cell, performing a discretization for a complete electro-osmotic drag effect, obtaining a discretization simulation model of the complete electro-osmotic drag effect based on results of the discretization, solving the conservation equation of membrane water to establish a discretization simulation model of electro-osmotic drag effect of water conservation in the fuel cell. The discretization modeling method for the electro-osmotic drag effect of water conservation in a fuel cell in the present disclosure can perform a discretization and a numerical calculation for a complete electro-osmotic drag effect, the discretization comprising a water conservation portion caused by a membrane water content gradient and a water conservation portion caused by a proton transport flux gradient.

Abstract: A rotating device includes a seat at least part of which includes magnetic attraction coupling means and a rotating body which includes a housing having a central axis of rotation and magnetic attraction coupling means arranged in, and relatively rotatable about the central axis of rotation to, the housing. When the rotating body is placed on the seat, the magnetic attraction coupling means in the housing and the magnetic attraction coupling means of the at least part of the seat attract each other by magnetic force so that the magnetic attraction coupling means in the housing of the rotating body is stationary with respect to the at least part of the seat. The housing of the rotating body and the magnetic attraction coupling means therein are relatively rotatable to each other through a motor.

Abstract: A method executed by an electronic device includes, extracting a first text feature from a first text input by a user, extracting, from a first image input by the user, a first semantic feature of a first region related to the first text; generating a second semantic feature based on the first text feature and the first semantic feature; and obtaining an image from a candidate image set based on the second semantic feature and a first texture feature of the first region.

Abstract: An action localization method, device, electronic equipment, and computer-readable storage medium are provided. The action localization method includes: identifying at least one target video segment containing a target object in a video; acquiring a first action recognition result of at least one image frame in the at least one target video segment and a second action recognition result of the target video segment; and acquiring an action localization result of the video based on the first action recognition result and the second action recognition result.

Abstract: The present disclosure provides a urea pyrolysis test device and method. The urea pyrolysis test device includes a pyrolysis reactor, a urea preparation unit and an injection unit, where the pyrolysis reactor is provided with a flue therein, the urea preparation unit is configured to prepare a urea solution, and the injection unit is connected to the urea preparation unit and includes a plurality of nozzles extending into the flue so as to spray the urea solution into the flue.

Abstract: The present disclosure provides a performance prediction method and system for a fuel cell in an anode recirculation mode. The method includes: calculating output results of a membrane water transfer equation, a liquid water transfer equation, and a temperature transfer equation based on the membrane water transfer equation, the liquid water transfer equation, and the temperature transfer equation inside the fuel cell; calculating output results of a gas transfer equation based on output results of a first labeling equation according to a phenomenon of nitrogen transmembrane permeation inside the fuel cell; determining gas state parameters in the anode recirculation mode based on the output results of the temperature transfer equation and the gas transfer equation; and predicting output voltage performance of the fuel cell based on the gas state parameters in the anode recirculation mode and output results of a second labeling equation.

Abstract: Disclosed are a magnetic levitation device and a linear motion mechanism thereof. The magnetic levitation device is provided with a base and a levitation body, the base comprises a first magnetic assembly, the levitation body comprises a second magnetic assembly, and the first magnetic assembly and the second magnetic assembly are configured to be capable of providing a magnetic balance force required when the levitation body stably levitates relative to the base.

Abstract: Provided is a fly ash removal device for a flue gas, including a fly ash collection assembly adapted to be arranged in a flue. The fly ash collection assembly includes: a flow baffle, a flow guiding component, and a collecting component.

Abstract: An image processing method includes: obtaining first image patches corresponding to an image to be processed; dividing the first image patches into at least two groups via a window self-attention network; determining global attention information among the first image patches in the at least two groups of the first image patches, respectively; obtaining second image patches comprising local attention information; and determining a recognition result of the image to be processed based on the second image patches.

Abstract: A rotating device includes a seat at least part of which includes magnetic attraction coupling means and a rotating body which includes a housing having a central axis of rotation and magnetic attraction coupling means arranged in, and relatively rotatable about the central axis of rotation to, the housing. When the rotating body is placed on the seat, the magnetic attraction coupling means in the housing and the magnetic attraction coupling means of the at least part of the seat attract each other by magnetic force so that the magnetic attraction coupling means in the housing of the rotating body is stationary with respect to the at least part of the seat. The housing of the rotating body and the magnetic attraction coupling means therein are relatively rotatable to each other through a motor.

Abstract: According to an embodiment of the disclosure, a method may include acquiring behavior objects and relevant events associated with the behavior objects in a video to be processed by using an artificial intelligence (AI) network. According to an embodiment of the disclosure, the method may include providing a behavior object selection interface based on the acquired behavior objects. According to an embodiment of the disclosure, the method may include receiving a behavior object selected through the selection interface by a user. According to an embodiment of the disclosure, the method may include providing an event related to the behavior object selected by the user.

Abstract: A levitating object includes a housing and a magnetic member. The housing and the magnetic member are configured to be relatively movable, and the relative movement between the magnetic member and the housing are guided through a linear guide mechanism provided in the levitating object. According to the present disclosure, a magnetic member capable of linearly moving or vertically moving is provided in the levitating object, so that self-lifting and lowering levitation or landing of the levitating object relative to a levitator base can be easily achieved without providing a lifting and lowering mechanism in the levitator base. In this way, an extremely strong visual special effect and a sense of magic are achieved, and the levitator base can still maintain an original compact or miniaturized flat structure.