Abstract: A X-ray dose adjustment method for a medical imaging system may include: acquiring a first image which is captured by the medical imaging system and comprises a region to be examined; subjecting the first image to image segmentation on the basis of a grayscale value of the first image to acquire a first sub-region and a second sub-region, wherein a grayscale value of the first sub-region is greater than a grayscale value of the second sub-region; determining at least one of the first sub-region and the second sub-region to be a target region on the basis of a comparison of the grayscale value of the first sub-region with a first grayscale threshold; and performing dose adjustment on the basis of the target region.

Abstract: An external wideband antenna and a wireless communication device are provided in the disclosure. The external wideband antenna includes a radio frequency (RF) coaxial cable, and a first antenna body and a second antenna body which are electrically connected with the RF coaxial cable respectively, where an outer contour of the first antenna body and an outer contour of the second antenna body cooperate to define a tapered slot. In the external wideband antenna provided the disclosure, the outer contour of the first antenna body and the outer contour of the second antenna body cooperate to define the tapered slot, which facilitates generation of a strong coupling current, and in turn a broadening of antenna bandwidth.

Abstract: An external wideband antenna and a wireless communication device are provided in the disclosure. The external wideband antenna includes a radio frequency (RF) coaxial cable, and a first antenna body and a second antenna body which are electrically connected with the RF coaxial cable respectively, where an outer contour of the first antenna body and an outer contour of the second antenna body cooperate to define a tapered slot. In the external wideband antenna provided the disclosure, the outer contour of the first antenna body and the outer contour of the second antenna body cooperate to define the tapered slot, which facilitates generation of a strong coupling current, and in turn a broadening of antenna bandwidth.

Abstract: A single phase brushless high-speed motor, comprising: an outer housing, a stator assembly, and a rotor assembly; the stator assembly including a coil bobbin, stator coils and a stator core; the stator core including two core blocks, which comprise tooth portions, two opposite ends of the tooth portions being provided with a first magnetic yoke and a second magnetic yoke; the tooth portions of the stator core being engaged with each other to form an inner hole of the stator; the rotor assembly comprising an integral bearing, one end of the integral bearing being connected to an impeller, and the other end being mounted around magnets, which form magnetic body having two poles. The volume of the single-phase brushless motor is decreased and the requirements for the miniaturization of single-phase brushless motors are satisfied by arranging a mounting structure comprising a stator assembly and a rotor assembly.

Abstract: A single phase brushless high-speed motor, comprising: an outer housing, a stator assembly, and a rotor assembly; the stator assembly including a coil bobbin, stator coils and a stator core; the stator core including two core blocks, which comprise tooth portions, two opposite ends of the tooth portions being provided with a first magnetic yoke and a second magnetic yoke; the tooth portions of the stator core being engaged with each other to form an inner hole of the stator; the rotor assembly comprising an integral bearing, one end of the integral bearing being connected to an impeller, and the other end being mounted around magnets, which form magnetic body having two poles. The volume of the single-phase brushless motor is decreased and the requirements for the miniaturization of single-phase brushless motors are satisfied by arranging a mounting structure comprising a stator assembly and a rotor assembly.

Abstract: The present invention discloses A Bluetooth antenna of common RF coaxial cable, comprising: a RF coaxial cable including a first RF interface and a second RF interface, two ends of the RF coaxial cable are respectively connected to the first RF interface and the second RF interface, the RF coaxial cable is provided with a feed point. The present invention takes the outer conductor as the radiator of the Bluetooth antenna. The Bluetooth antenna can be worked with the RF coaxial cable at the same time, which decreases the size of the antenna and achieve the goal of decreasing the size of the whole communication terminal.

Abstract: The present invention relates to the communication technology field, more specifically, to a scheme of bilateral antenna. A device for improving the stray isolation between the antennas in the bilateral antenna comprises a plurality of communication modules having an antenna and a power amplification module; at least one of the communication modules further comprises a tuning module. The power amplification module is connected to the antenna directly or through the tuning module. The stray isolation between the communication module and other communication module is improved by adjusting the communication modules comprising the tuning module. This invention increases the stray isolation between the communication modules in different frequency bands, specifically, when a long interval exits between working frequency bands. Consequently, the radiance performance of the bilateral antenna of the mobile termination is satisfied, and the capacity of resisting disturbance between the systems is enhanced.

Abstract: The present invention relates to the communication technology field, more specifically, to a scheme of bilateral antenna. A device for improving the stray isolation between the antennas in the bilateral antenna comprises a plurality of communication modules having an antenna and a power amplification module; at least one of the communication modules further comprises a tuning module. The power amplification module is connected to the antenna directly or through the tuning module. The stray isolation between the communication module and other communication module is improved by adjusting the communication modules comprising the tuning module. This invention increases the stray isolation between the communication modules in different frequency bands, specifically, when a long interval exits between working frequency bands. Consequently, the radiance performance of the bilateral antenna of the mobile termination is satisfied, and the capacity of resisting disturbance between the systems is enhanced.