In November 1781, John Hanson became the first President of the United States in Congress Assembled, under the Articles of Confederation. Many people have argued that John Hanson, and not George Washington, was the first President of the United States, but this is not quite true.
Even and odd mode impedances of a coupled microstrip line. actually I find the reason when you use differential port, the impedance you get is twice the odd mode impedance, whereas if you use common port, the impedance is half the even mode impedance. 1 members found this post helpful.
Break even analysis. In the simple analysis, break even is the quantity (unit volume) that balances total costs with total gains for a net cash flow of 0. The break even quantity depends on at least three variables: Fixed cost, variable cost per unit, and revenues per unit.