A method for compressing images, the method including the steps of partitioning image information for an image into partitioned information, transforming the partitioned information into transformed information using a discrete cosine transform, and quantizing the transformed information into quantized information. The policy builder component provides a graphical user interface to be used by a policy manager to define access policies for users seeking to access network services and resources. Turbulence is generated in different phases of the flow in different layers by arranging the expansion spots andor the trailing elements in superimposed layers to be located at different distances from the slice opening of the headbox, whereby a different turbulence prevails at the slice opening in different layers of the stock suspension flow.