Page 257 - Electrical Engineering Dictionary

plane between the fingers of the gripper), energy band continuous interval of en-
and n-normal vector to two others so that the ergy levels that are allowed in the periodic
frame (n, o, a) is right-handed. potential field of the crystalline lattice.

end-fire the pattern factor is maximum in energy banking pertaining to the mainte-
the E plane (for a dipole antenna along the nance of a thermal unit on hot reserve.
z axis, this is the plane where θ = 0 or 180
degrees). energy compaction in a transformation,
the concentration of the input signal energy
into a relatively small part of the transformed
end-fire array a linear phased array an-
signal. A linear transform of a random vector
tenna in which the amplitudes and phases of
compacts the signal energy when the energy
the element excitations are adjusted such that
or variance of a small number of transform
the direction of maximum radiation is along
coefficients is large relative to the variance of
the axis passing through the center of the ar-
the other coefficients.
ray elements.
energy conservation the conservation of
endian an adjective used with a qualifier energy between the input and output of a sys-
to indicate how long values are constructed tem; i.e., the energy of the output signal is
from smaller values that reside in memory. A equal to that of the input signal to within
“big-endian” machine constructs long values a constant factor. A unitary or orthogonal
by placing the smaller parts from the lower transform conserves energy in that the energy
addresses at the left end of the value (the or magnitude of the output vector is equal to
“big” end). that of the input vector.

endoscope remote imaging system used energy gap the width of the energy inter-
by physicians to examine a patient’s internal val between the top of the valence band and
organs. The cylindrical rod is placed either the bottom of the conduction band.
through an existing opening in the body or
through a small incision. The rod contains an energy level one of the specific values
illuminating fiber optic bundle and an optical possible for the energy of an electron in an
system to deliver the image to a video mon- atom or molecule.
itor. In a conventional endoscope, the image
is transmitted through a series of lenses to energy product the product of the mag-
a camera outside of the patient. In an elec- netic flux density, B and magnetic field inten-
tronic endoscope the image is collected by a sity, H at any operating point on the normal
CCD camera positioned inside the patient. demagnetization curve, indicating the energy
delivered by the magnet. The maximum en-
endpoint detection the process of iso- ergy product is commonly used to designate
varying grades of materials.
lating spoken words, typically used subse-
quently for word recognition.
energy relaxation time the characteristic
time for energy loss to scattering processes.
ends a crimped-type wire connector.
energy signal a continuous time signal
energy that which does work or is capa- f(t) is an energy signal if
ble of doing work. In electrical systems, it
is generally a reference to electrical energy Z ∞ 2
f(t) dt < ∞ .
measured in kilo-watt hours.
−∞

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