### Some articles on *phase constant, phase, constant*:

**Phase Constant**

... In electromagnetic theory, the

**phase constant**, also called

**phase**change

**constant**, parameter or coefficient is the imaginary component of the propagation

**constant**for a plane wave ... It represents the change in

**phase**per metre along the path travelled by the wave at any instant and is equal to real part of the angular wavenumber of the wave ... Since wave

**phase**velocity is given by it is proved that β is required to be proportional to ω ...

... If the field is propagating towards z with a

**phase constant**, then it can be expressed in the following form where is the maximum amplitude of the field, is the envelope that shapes the impulse in the time ... domain is Now we can solve Helmholtz equation in the frequency domain we decide to express the

**phase constant**with the following notation where we assume that (the sum of the linear ... The

**phase constant**can have any complicated behavior, but we can represent it with a Taylor series centered on where, as known we put the expression of the electric field in the ...

... Westfall Gas Gas-discharge lamp Gas-filled tube Gas-

**phase**ion chemistry Gas Electron Multiplier Gas centrifuge Gas compressor Gas

**constant**Gas discharge Gas dynamic laser Gas dynamics Gas ... Gibbons–Hawking effect Gibbons–Hawking–York boundary term Gibbs'

**phase**rule Gibbs algorithm Gibbs entropy Gibbs free energy Gibbs measure Gibbs ... Gravitational anomaly Gravitational binding energy Gravitational collapse Gravitational

**constant**Gravitational convection Gravitational coupling

**constant**Gravitational energy ...

### Famous quotes containing the words constant and/or phase:

“Henry David Thoreau, who never earned much of a living or sustained a relationship with any woman that wasn’t brotherly—who lived mostly under his parents’ roof ... who advocated one day’s work and six days “off” as the weekly round and was considered a bit of a fool in his hometown ... is probably the American writer who tells us best how to live comfortably with our most *constant* companion, ourselves.”

—Edward Hoagland (b. 1932)

“I had let preadolescence creep up on me without paying much attention—and I seriously underestimated this insidious *phase* of child development. You hear about it, but you’re not a true believer until it jumps out at you in the shape of your own, until recently quite companionable child.”

—Susan Ferraro (20th century)