The present general inventive concept relates to methods and systems to select and display information on an avionics display screen. An opening 6 is formed on the surface of the vessel 2. A unidirectional network couples the memory banks and the processors to enable cache coherency messages to be transmitted from the memory to the processors. If the stored hash value and the recomputed hash value are different, the method and system overwrite the stored hash value with the recomputed hash value, and generate a notification. A waveguide is a material medium that confines and guides light. If temperature is not controlled, the plot of pressure versus mass flow rate will remain linear, but the slope of the curve will be adjusted based on the temperature of the fluid.