The minimum basic parameters that are required to design the piping system include, but are not limited to, the following. 1  The characteristics and physical properties of the fluid. 2  The desired mass-flow rate (or volume) of the fluid to be transported. 3  The pressure, temperature, and elevation at Point A.
Here are a few pointers to make it easy to understand: 1  A theme is the underlying dominant idea in every written piece, while a motif is a repetition of certain patterns, ideas or images to reinforce the main theme. 2  A theme is broader than a motif. 3  The author uses motifs to highlight the theme of his story.
There are more examples of theme here. The plot is what the story is about, and theme is how the meaning of a story is defined. In the above example the story remains the same but the themes have infinite and varied possibilities.