Abstract: A tunable filter with wide tuning range and high out-of-band rejection is achieved with a tunable bandpass filter and a number of cascaded, fixed frequency Lame-Mode Resonators (LMRs) notch filters or other resonators. In some embodiments, the filter can be implemented with all of the elements on an integrated circuit, saving space for use in applications such as mobile phones or other mobile communication devices.

Abstract: Herein disclosed is a novel shoe box, comprising a box body. The box body may be formed by a top panel, a bottom panel, a back panel, a front panel, a left panel, and a right door frame. The box body may be provided with a first opening. The front panel may open or close the first opening. The right door frame may be provided with a second opening, and the second opening may be provided with a side cover that may open or close the second opening. Inside the first opening, there may be a first iron block. The front panel may be provided with a matching first magnet at the position of the first iron block. A second iron block may be arranged in the second opening, and the side cover may be provided with a matching first magnet at the position of the second iron block. When closing the first opening on the front panel, or closing the second opening on the side cover, the first or second magnet my abut the first or second iron block, respectively.

Abstract: Disclosed are a method for adjusting the pore size of a porous metal material and the pore structure of a porous metal material. The method comprises: permeating at least one element into the surface of the pores of the material to generate a permeated layer on the surface of the pores, so that the average pore size of the porous material is reduced to within a certain range, thus obtaining a pore structure of the porous metal material having the pores distributed on the surface of the material and the permeated layer provided on the surface of the pores.

Abstract: Disclosed are a method for adjusting the pore size of a porous metal material and the pore structure of a porous metal material. The method comprises: permeating at least one element into the surface of the pores of the material to generate a permeated layer on the surface of the pores, so that the average pore size of the porous material is reduced to within a certain range, thus obtaining a pore structure of the porous metal material having the pores distributed on the surface of the material and the permeated layer provided on the surface of the pores.

Abstract: The invention provides vernalization-related polypeptides, nucleic acids and methods of using the same for inducibly-conferring epigenetic change on a target gene in plant or non-plant settings.

Abstract: The invention provides vernalization-related polypeptides, nucleic acids and methods of using the same for inducibly-conferring epigenetic change on a target gene in plant or non-plant settings.

Abstract: The present invention comprises artificial nucleic acid constructs comprising a bidirectional promoter having minimal promoter and a common promoter, wherein said minimal promoters is operably linked to said common promoter, in opposite orientation to said common promoter, and 5′ to said common promoter. Those artificial nucleic acid constructs, wherein said bidirectional promoter further comprises at least one gene operably linked to said minimal promoter and said common promoter are preferred.