effective height


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effective height

[ə¦fek·tiv ′hīt]
(electromagnetism)
The height of the center of radiation of a transmitting antenna above the effective ground level.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The jet was central, in its origin and direction, and the effective height of the repaired cusps was 8 mm.
Snow cover decreases the effective height h and diminishes the reflecting area.
The knife-edge diffraction model indicates that the diffraction gain is related to the Fresnel diffraction parameter v [24] which depends on the effective height h of an obstruction ship, the signal wavelength [lambda], the distance [d.sub.1] between the transmitter and the obstruction ship and the distance [d.sub.2] between the receiver and the obstruction ship as illustrated in Fig.
where [V.sup.e] is the effective volume of medium, [V.sub.0] the cavity volume, [h.sub.e] the axial effective height, and the mode is as shown in Fig.
The Hoyt Hi-Rise Screen not only extends screen cloth wear-life by increasing the effective height of the wire but also offers aggregate producers much greater screening efficiency and production due to the compression of the wire.
The input parameters required for executing the proposed routine are: negative reinforcement ([A.sub.s]), positive reinforcement ([A.sub.s]), effective height of negative reinforcement (d'), effective height of positive reinforcement (d); beam height (h); beam width (b); concrete characteristic strength to compression ([f.sub.ck]), characteristic strength of steel to yielding ([f.sub.yk]), modulus of elasticity of the steel ([E.sub.s]), ultimate bending of strengthening ([M.sub.uk]).
With an effective height of 1,300ft above sea level, it meant that a third of the country's population would be able to receive television pictures - a proportion which only the United States could match.
This allows the BW-H501 to achieve effective height resolution of 100nm and repeatable precision of Sigma 3D 10 nm.
For each plot-point, colony site, and unoccupied site we measured percent vegetative cover by species, vertical density by life form, effective height of the vegetation, percent shrub cover, and collected soil samples for texture analysis.

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