A method for wireless communications is provided. The inflator includes a longitudinal enclosure and a first gas generant positioned along the enclosure. And based on the measured result by the displacement sensor, the tool is moved so that the center height of the tool and the center line of the workpiece satisfy relatively the predetermined positional correlation. Fourier space electromagnetic equations are then set up in each of the layers using the harmonic expansion of the permittivity or inverse permittivity 1, and Fourier components of electric and magnetic fields in each layer. The throughput of the optical switch may be increased through a process of bimodal pipelined connection-packing. The invention discloses use of Gibberellins to increase hybrid seed production in corn.