Abstract: The present invention discloses a method for feeding black soldier fly larvae with a selenium-rich bacteria solution, as follows: inoculating an intestinal bacteria seed liquid of black soldier fly to a fermentation medium at an inoculum size of 1%-3%, and cultivating at 30° C.-37° C. till the log phase to obtain a fermentation broth of log phase; adding sodium selenite to the fermentation broth of log phase to enable the fermentation broth to have a sodium selenite concentration of 10-600 ?g/mL, then cultivating the fermentation broth at 30° C.-37° C. for 24-36 h to obtain a selenium-rich bacteria solution; and selecting 4-to-6-day-old black soldier fly larvae to be fed, adding the selenium-rich bacteria solution to a feed to enable the feed to have a selenium content of 5-500 mg/kg (wet weight), feeding the black soldier fly larvae with the feed till the end of the fifth instar of the larvae.

Abstract: A display panel and a display device are provided. The display panel includes a light-emitting element, a pixel circuit, and a comparison module. The pixel circuit includes a driving transistor and a first transistor, and the first transistor and the driving transistor are connected to each other in series. The comparison module is coupled to a gate of the first transistor, and the comparison module is configured to compare a voltage value of a comparison signal and a voltage value of the reference signal to generate a control signal, and to provide the control signal to the gate of the first transistor. An operating phase of the pixel circuit includes a light-emitting phase. During the light-emitting phase, the comparison signal is a constant voltage signal, and a voltage of the reference signal changes over time in at least one period.

Abstract: A display panel, a display device, and a splicing display device are provided. The display panel includes pixels including subpixels, the subpixel includes a pixel circuit and a light-emitting element that are electrically connected to each other. In a pixel, light-emitting elements of the subpixels are arranged along a first direction, and pixel circuits of the subpixels are arranged along the first direction. In at least one pixel, an arrangement order of the light-emitting elements is different from an arrangement order of the pixel circuits; or arrangement orders of the pixel circuits in at least two pixels are different from each other, or arrangement orders of the light-emitting elements in at least two pixels are different from each other.

Abstract: A display panel and a display apparatus are provided. The display panel has a display region. The display panel includes in the display region: a plurality of data lines, a plurality of test switches, a plurality of test signal lines and a plurality of test control lines. One of the plurality of test switches includes an input terminal electrically connected to one of the plurality of test signal lines, an output terminal electrically connected to one of the plurality of data lines, and a control terminal electrically connected to one of the plurality of test control lines.

Abstract: A method and a device for a predicting desert locust are provided. The method includes: acquiring environment factor data of a target area, where the environment factor data includes total precipitation data, soil temperature data, soil water data, and vegetation index data; extracting fluctuation features corresponding to the environment factor data through wavelet transform, where the fluctuation features include a precipitation fluctuation feature corresponding to the total precipitation data, a soil temperature fluctuation feature corresponding to the soil temperature data, a soil water fluctuation feature corresponding to the soil water data, and a vegetation fluctuation feature corresponding to the vegetation index data; and predicting time when the desert locust presents in the target area based on the fluctuation features.

Abstract: A display panel and a display device are provided. The display panel includes a light-emitting element, a pixel circuit, and a comparison module. The pixel circuit includes a driving transistor and a first transistor, and the first transistor and the driving transistor are connected to each other in series. The comparison module is coupled to a gate of the first transistor, and the comparison module is configured to compare a voltage value of a comparison signal and a voltage value of the reference signal to generate a control signal, and to provide the control signal to the gate of the first transistor. An operating phase of the pixel circuit includes a light-emitting phase. During the light-emitting phase, the comparison signal is a constant voltage signal, and a voltage of the reference signal changes over time in at least one period.

Abstract: An apparatus for inverting parameters of vegetation leaves based on remote sensing is provided. The apparatus is obtained by performing inverse processes of a PROSAIL model based on a deep neural network, achieving strong physical mechanism and high accuracy. A method for inverting parameters of vegetation leaves based on remote sensing is provided. In the method, the apparatus for inverting parameters of vegetation leaves based on remote sensing is used, and the parameters of the vegetation leaves are obtained by performing inversion based on remote sensing data of the vegetation leaves, achieving high reliability and high accuracy.

Abstract: The present application provides a debris bin assembly including: a debris bin housing and a debris discharge valve; the debris bin housing includes an inner cavity, and an air inlet, a debris outlet, and at least one air guide portion that are disposed in communication with the inner cavity, and the air inlet is in communication with a debris inlet channel of the cleaning robot; the debris discharge valve is disposed at the debris outlet and configured to open the debris outlet to evacuate debris from the inner cavity in response to a vacuum negative pressure, and to close the debris outlet after the vacuum negative pressure is withdrawn; the at least one air guide portion is configured for being in communication with an external air and configured to guide a debris discharging airflow into the inner cavity in response to the vacuum negative pressure in the debris outlet.

Abstract: Provided is a method for controlling delivery of a video stream of a live-stream room, and corresponding server and mobile terminal. The method includes steps of: receiving a connection request initiated by an anchor user of the live-stream room from a first terminal and including pre-protocol information outputted by a second terminal; sending, in response to the connection request, a first live video stream uploaded by the first terminal down to the second terminal; and receiving a third live video stream uploaded by the second terminal and formed by combining at least one of a second live video stream and the first live video stream, and delivering the third live video stream to a member user in the live-stream room.

Abstract: Provided is a method for controlling delivery of a video stream of a live-stream room, and corresponding server and mobile terminal. The method includes steps of: receiving a connection request initiated by an anchor user of the live-stream room from a first terminal and including pre-protocol information outputted by a second terminal; sending, in response to the connection request, a first live video stream uploaded by the first terminal down to the second terminal; and receiving a third live video stream uploaded by the second terminal and formed by combining at least one of a second live video stream and the first live video stream, and delivering the third live video stream to a member user in the live-stream room.