Abstract: A bulk acoustic wave resonator and a preparation method thereof, the bulk acoustic wave resonator includes a first electrode and a second electrode, and a piezoelectric film between the first and second electrodes, the piezoelectric film includes n layers of polarized piezoelectric films, and the polarities of any two adjacent layers of the polarized piezoelectric films are opposite. The acoustic mirror is disposed between the substrate and the first electrode, by preparing the polarized piezoelectric films with opposite polarities in layers, polarity inversion is achieved. The bulk acoustic wave resonator of the present disclosure can reduce the requirements for the piezoelectric film materials and increase the resonant frequency under the condition of not reducing the total thickness of the piezoelectric film or introducing a transition electrode. The process is simplified, the acoustic wave loss is reduced, and the quality factor is improved.

Abstract: Logical, safe, personalizable, and user friendly computer user interfaces may include: (a) plural branches; (b) plural sub-branches associated with the branches; and (c) an interface control that includes: a branch locking interface, a sub-branch locking interface, a branch display control interface, and/or a sub-branch display control interface. Optionally or alternatively, user interfaces may include: (a) a first section including plural items having a first common visual characteristic; and (b) a second section including plural items having a second common visual characteristic. In this manner, the common visual characteristics may indicate an association between the items sharing the characteristic.

Abstract: A method and system are provided for searching and finding help files and wizards of computer operating systems and computer software applications that allow system administrators or users to quickly find the help file or wizard, invoke the help file or wizard, and execute the help file or wizard. Search keywords may be entered into a search dialog using a variety of different languages.

Abstract: Logical, safe, personalizable, and user friendly computer user interfaces may include: (a) plural branches; (b) plural sub-branches associated with the branches; and (c) an interface control that includes: a branch locking interface, a sub-branch locking interface, a branch display control interface, and/or a sub-branch display control interface. Optionally or alternatively, user interfaces may include: (a) a first section including plural items having a first common visual characteristic; and (b) a second section including plural items having a second common visual characteristic. In this manner, the common visual characteristics may indicate an association between the items sharing the characteristic.

Abstract: A method and system are provided for searching and finding help files and wizards of computer operating systems and computer software applications that allow system administrators or users to quickly find the help file or wizard, invoke the help file or wizard, and execute the help file or wizard. Search keywords may be entered into a search dialog using a variety of different languages.