Periodontal treatment is the specialist cleaning of your teeth and gums to help control the bacteria that cause gum disease. Gum disease is caused by the germs (bacteria) which live in your mouth. The bacteria stick to your teeth, irritate the gums and make them bleed.
(Redirected from Ground effect in aircraft) In fixed-wing aircraft, ground effect is the increased lift (force) and decreased aerodynamic drag that an aircraft's wings generate when they are close to a fixed surface. When landing, ground effect can give the pilot the feeling that the aircraft is floating.
ward the wall. This failure to measure within the viscous sublayer a mean velocity consistent with U y is a consequence of âwall-proximity effectâ. Wall-proximity effect comprises a number of wall-induced aerodynamic and thermal effects. Many investigations published over a period of more than thrty years have been aimed at correcting air speed measurements distorted by wall-proximity ef-fect.