Spoil can be removed by auger, compressed air or water jetting. The Janus nanoparticles were fabricated via electrohydrodynamic jetting of two polymer liquid solutions. Coiled tubing is run in hole with a jetting tool on the end. Ignition and jetting problems plagued these early models. These ROVs can also be used for dredging, trenching, and jetting tools. Instead, they blow oxygen-enriched air onto the surface of the slag (top jetting). This material jetting is also a known phenomenon in explosive welding of materials. More length without splice is reached by placing jetting equipment in tandem. The squid reacted by jetting, inking, pattern change and other startle responses. Varkala beach has adventure and leisure activities such as boat riding, parasailing, jetting, and horse-riding. The method is called Single Pass Jetting, used for quickly producing metal parts. While jetting back and forth between America and London, Rory sees Logan on the side. This can be done by jetting for example. On April 8, 2008, JetBlue introduced a new "Happy Jetting" brand campaign.