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The normalized mean free path , viscosity , and thermal conductivity of the air-helium gas mixture as functions of , where and represent , , and . This normalization ensures that when and when , so that the rates of change for each quantity can also be compared.
The transducer’s FH as a function of when the heating element is turned off.
Transducer’s FH and corresponding FH loss at different .
Physical properties of air and helium. All the values, except the critical temperature and critical pressure, are for the temperature 300 K. Note that and .
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