According to the invention, there is provided a hybrid maize plant, designated as 39A46, produced by crossing two Pioneer Hi-Bred International, Inc. The application execution method of the present invention includes checking, when a code of application to be executed is input, workloads of a central processing unit and a graphics processing unit. The quantization scale is controlled in response to an encoding rate. Some embodiments describe methods and apparatus for adjusting, along a length of the device, the porosity of the occluding device.