An apparatus and method for gasliquid separation on an array of jets or streams of liquid is provided. The second retaining means being able to be deactivated by the deactivation means of the intermediate collar by the release of the pressure of the piston head on the collaboration means of the intermediate collar to allow the protective sleeve to deploy under the action of pushing means. The instant method can also propagate waves that are not described by differential equations, such as anisotropic scalar waves. Nugget-type ice is provided by the ice making apparatus. A fixed member is connected to the access unit. And logic may transmit a packet with a frame with a capabilities information field comprising an indication that a receiver may can process shifting pilot tones for phase tracking.