Abstract: A four-notch flexible wearable ultra-wideband antenna fed by coplanar waveguide, includes a flexible base. A ground plane, a radiation patch and a feeder are arranged on the flexible base. There are several resonant tanks on the feeder and the radiation patch. The flexible base is made of insulating flexible material, and the feeder, the radiation patch and the ground plane are made of conductive flexible material. The four-notch flexible wearable ultra-wideband antenna fed by coplanar waveguide of the present application can be prepared by layer-by-layer assembly technology, spray printing or printed circuit board technology, and has the advantages of miniaturization and low profile, compact structure, convenient production, good conformality, wearable and other advantages.

Abstract: Provided is a handcart circuit breaker and a contact device thereof including a contact arm and a moving contact. Inner walls of a cylindrical contact finger base in axial direction respectively have a contact finger groove with a spring contact finger for plugging the contact arm and a fixed contact; a rear of the contact finger base sleeves with a front of the contact arm having a positioning groove larger than a fitting end of the support pin, the contact finger base has support pins extending into the contact finger base; a diameter of a circle corresponding to the fitting end of each support pin is larger than a diameter of a circle corresponding to a bottom of each positioning groove; the contact finger base connects with the contact arm and an elastic support structure is arranged between the contact arm and the inner wall of the contact finger base.

Abstract: The embodiments of disclosure disclose a method for differential upgrading of a variable-partition system, which includes the following steps that: partition information is acquired from a differential upgrade package; data backup is performed to data of old partitions; partition re-division is performed on the old partitions to obtain new partitions according to the partition information, and the new partitions are formatted; the backed-up data is recovered into the new partitions; and differential upgrading is performed of the variable-partition system by virtue of the differential upgrade package. The embodiments of the disclosure also disclose a device for differential upgrading of the variable-partition system. The embodiments of the disclosure further disclose a method for making a differential upgrade package with partition information. The embodiments of the disclosure further disclose a device for making a differential upgrade package with partition information.

Abstract: The embodiments of disclosure disclose a method for differential upgrading of a variable-partition system, which includes the following steps that: partition information is acquired from a differential upgrade package; data backup is performed to data of old partitions; partition re-division is performed on the old partitions to obtain new partitions according to the partition information, and the new partitions are formatted; the backed-up data is recovered into the new partitions; and differential upgrading is performed of the variable-partition system by virtue of the differential upgrade package. The embodiments of the disclosure also disclose a device for differential upgrading of the variable-partition system. The embodiments of the disclosure further disclose a method for making a differential upgrade package with partition information. The embodiments of the disclosure further disclose a device for making a differential upgrade package with partition information.