The sign: Foamy or bubbly urine. What it means: You could have kidney disease. When your kidneyâs filtering units arenât working properly, that can lead to a build-up of protein in your urine. The protein then creates a foamy appearance when it hits the water in the toilet.
This gives us a point in the x1-x2 or phase plane that we can plot. Doing this for many values of t will then give us a sketch of what the solution will be doing in the phase plane. A sketch of a particular solution in the phase plane is called the trajectory of the solution.
For the purposes of this document, phase of flight refers to a period within a flight. In the case. of a manned aircraft, a flight begins when any person boards the aircraft with the intention of. flight and continues until such time as all such persons have disembarked. In the case of an.