Abstract: A power conversion device includes a DC-to-DC converter and a control unit, the control unit includes a phase-locked loop controller, and the DC-to-DC converter includes a primary side circuit, a secondary side circuit and a transformer. The transformer transfers energy between the primary side circuit and the secondary side circuit, the primary side circuit includes an inverter circuit, and the phase-locked loop controller outputs a first driving signal. The first driving signal is generated according to a phase jitter signal, a phase reference signal and an output phase signal of the inverter circuit, and the first driving signal is configured to control the inverter circuit.

Abstract: An image processing method and apparatus, an electronic device, and a storage medium are provided, the method comprising: obtaining luminance value of respective pixel points in image layer to be processed; determining pixel point in image layer to be processed whose luminance value satisfies first preset threshold relationship or second preset threshold relationship with luminance value of anchor point in area to be adjusted as target pixel point; when first preset threshold relationship is satisfied, performing target effect adjustment on target pixel point according to input parameter of first target effect item to generate adjusted image; when second preset threshold relationship is satisfied, performing adjustment on target effect parameter of target pixel point according to input parameter of second target effect item and preset mapping table to generate adjusted image; and determining result image according to adjusted image and image to be processed.

Abstract: A method for determining a degree of doneness of a sturgeon meat based on flavor fingerprinting and a partial least squares (PLS) regression is provided. The method determines the degree of doneness of a sturgeon meat sample and predicts a flavor characteristic based on gas chromatography-ion mobility spectrometry (GC-IMS) data and a linear regression equation of the sturgeon meat sample.

Abstract: Provided are a method and apparatus for controlling an AR game, an electronic device and a storage medium. In the provided method for controlling an AR game, a game control instruction is determined, according to a voice instruction obtained during running of the AR game and a preset instruction mapping relationship, and then the AR game is controlled according to the game control instruction.