Abstract: A computer-implemented method for performing radio frequency shimming includes obtaining, via a processing system including one or more processors, quadrature B1+ maps of an imaging volume of a subject. The computer-implemented method also includes inputting, via the processing system, the quadrature B1+ maps into a deep learning-based radio frequency shimming inference model. The computer-implemented method further includes outputting, via the processing system, from the deep learning-based radio frequency shimming inference model radio frequency shims based on the quadrature B1+ maps. The computer-implemented method even further includes applying, via the processing system, the radio frequency shims to a magnetic resonance imaging scanner prior to a parallel transmission diagnostic scan of the imaging volume of the subject.

Abstract: A roller brush assembly and a cleaning device are provided. The above roller brush assembly is applied in the cleaning device, including: a main roller brush; an electric motor configured to drive the main roller brush to rotate to sweep a surface to be cleaned; and an auxiliary roller brush driven by the main roller brush to rotate and sweep the surface to be cleaned towards the main roller brush.

Abstract: A cleaning robot, a control method, and a storage medium, the cleaning robot comprising a roller brush assembly, a roller brush switching assembly, a detection assembly, and a control assembly, the roller brush assembly comprising at least two roller brushes; the detection assembly is used for detecting the medium type of the surface to be cleaned and generating a signal on the basis of the detection result; and the control assembly is used for controlling the roller brush switching assembly on the basis of the signal of the detection assembly to switch to at least one of the roller brushes amongst the at least two roller brushes for executing a cleaning operation.

Abstract: A roller brush assembly and a cleaning device are provided. The above roller brush assembly is applied in the cleaning device, including: a main roller brush; an electric motor configured to drive the main roller brush to rotate to sweep a surface to be cleaned; and an auxiliary roller brush driven by the main roller brush to rotate and sweep the surface to be cleaned towards the main roller brush.

Abstract: The embodiments of the present application provide a cleaning device and a roller brush component. The roller brush component includes a mounting base, a roller brush frame, an adjusting mechanism, a first roller brush and a second roller brush. A notch is formed on one side of the mounting base. The roller brush frame is rotatablely connected with the mounting base. The adjusting mechanism is in driving connection with the roller brush frame to drive the roller brush frame to rotate. The first roller brush and the second roller brush are connected with the roller brush frame, and the roller brushes are positioned in the notch. The roller brush frame, the first roller brush and the second roller brush are configured such that the first roller brush and the second roller brush may have different ground clearances during rotation of the roller brush frame.

Abstract: The embodiments of the present application provide a cleaning device and a roller brush component. The roller brush component includes a mounting base, a roller brush frame, an adjusting mechanism, a first roller brush and a second roller brush. A notch is formed on one side of the mounting base. The roller brush frame is rotatablely connected with the mounting base. The adjusting mechanism is in driving connection with the roller brush frame to drive the roller brush frame to rotate. The first roller brush and the second roller brush are connected with the roller brush frame, and the roller brushes are positioned in the notch. The roller brush frame, the first roller brush and the second roller brush are configured such that the first roller brush and the second roller brush may have different ground clearances during rotation of the roller brush frame.