Useful tips for everyday
What does CQ contest mean? A “CQ Contest” is simply a limited CQ, just like someone can call CQ some-specific-area or CQ any-member-of-a-particular-club. I don’t…
Can you use ham radio for work? In this case, “amateur” means “non-commercial.” You can’t use it to make money. Even a non-profit radio station…
What is a high q coil? The higher the frequency of the alternating current, the higher the inductive reactance. However, although the coil is a…
What are the common problem of a gas turbine? Gas turbine engines may be affected in a number of ways, including: (a) increased deterioration of…
How does a single-point urban interchange work? A Single-Point Urban Interchange (SPUI) is a type of interchange. In a SPUI (pronounced “Spooey”), a single traffic…
How do you derive beam deflection equation? Assuming that the deflection of the beam is sufficiently small, we can neglect the first derivative y′. Then…
Can titanium be brazed? THE BRAZING OF TITANIUM ALLOYS has been well studied and implemented in the industry over the past six decades. Brazing of…
What is the speed of sound in an incompressible fluid? 1482 m/s This value agrees well with the measured speed of sound in water, 1482…
How do you reduce Irreversibilities? Ways to reduce irreversibilities, by the sensitivity analysis in the IAM, comprised of reducing the excess air coefficient, increasing the…
Why do we use convective derivatives? The convective derivative arises naturally from the Eulerian formulation, and represents the rate of change of a parameter with…