KSIĄŻKI POWIĄZANE ZE SŁOWEM «DIRECTIVITY»
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1
The Handbook of Antenna Design
For a scan off broadside, the directivity result is: TV* G = - jn - (9.21) N +2 £ (W —
H) sine nkd cos (nkd sin 0o) n=l See also Section 9. 1.3. 3. This can be used to
calculate directivity at any scan angle, and will produce directivity changes near ...
lot/21¢E. 3+[4R12(d)/R11l+[2R12(2d)/R11]. The directivity of the general N -
element equally spaced linear array, excited by equal-amplitude and equal-
phase signals, is easily found by extending the development: N 2 (element
directivity) ...
3
Principles of Underwater Sound
The transducer, as a hydrophone, will thus have two (possibly different) directivity
patterns, and these will not be the same as the pattern when the electric
connections are not altered. This is discussed in detail in Section 11.2.3. 7.4.3
The ...
University of California (1868-1952). Division of War Research. Sonar Data Division, California. University. Division of War Research. Sonar Data Division, Carl Eckart, 1946
4
Embracing Non-
Directivity: Reassessing Person-Centered ...
An expert collection investigating non-directivity, the distinguishing feature of the revolutionary, anti-authoritarian approach to psychotherapy developed by Carl Rogers.
10.2.4 Numerical Results Numerical evaluation of the far-zone field, directivity,
radiation resistance, and radiation efficiency is executed by Richmond's
computer program RICHMOND4 written in FORTRAN 77. The program
RICHMOND4 uses ...
6
Optimization Methods in Electromagnetic Radiation
1.3 Maximization of Directivity and Super-gain The discussion in the preceeding
section has shown that the behavior of the radiated far field pattern of a source
depends on the “feeding” or currents on the radiating elements. The ability to ...
Thomas S. Angell, Andreas Kirsch, 2004
7
A Guide to the Wireless Engineering Body of Knowledge (WEBOK)
4.3.4 Directivity, Gain, and Aperture The directivity, D, of an antenna is defined as
the ratio of the radiation intensity to the radiation intensity averaged over a
sphere. Directivity is a function of 6 and ti and is mathematically expressed by D(
0,¢) ...
G. Giannattasio, J. Erfanian, P. Wills, 2009
8
The Marine Seismic Source
THE USE OF DIRECTIVITY FOR NOISE SUPPRESSION The rather different
directivity characteristics of long and wide arrays have already been illustrated. In
this section the noise problems that can be tackled by careful array design will be
...
G.E. Parkes, L. Hatton, 1986
9
Noise and Vibration Mitigation for Rail Transportation ...
As for railway noise engineering, several noise types of different directivity
characteristics are often mixed together, such as wheel and rail radiation, engine
and cooling fan noise, turbulence sound around bogies, inter-coach areas and ...
Tatsuo Maeda, Pierre-Etienne Gautier, Carl Hanson, 2011
10
Practical Guide to MIMO Radio Channel: with MATLAB Examples
Since practical antennas are never isotropic, the directivity is defined as the ratio
of the power density radiated at a point with a given angle and distance from an
antenna compared to what would be radiated at that point by an isotropic ...
Tim Brown, Persefoni Kyritsi, Elizabeth De Carvalho, 2012
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «DIRECTIVITY»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
directivity w wiadomościach.
S Series Speakers Supply Sumptuous Sonics - ETNow.com
Controlled directivity maintains this sound quality over a wide horizontal arc to cover all listeners whilst vertical dispersion is tailored to avoid ... «EtNow.com, Lip 15»
FCC Issues Final Rule Affecting Morrison, Colorado
... modulation, polarization, antenna height or directivity, or location of such a station, must be coordinated with NTIA before an authorization will be issued. «Targeted News Service, Lip 15»
Rooftop sound
“Because of the highly controlled directivity of Funktion-One Resolution speakers, we were able to overcome this by placing four Res 2s at ... «AV Magazine, Lip 15»
DPA brings NAB launches to IBC
The company's Podium range includes the d:screet miniature microphone which uses interference tube technology for directivity and off-axis ... «AV Magazine, Lip 15»
DPA Microphones Brings Its Latest Broadcast Microphones at IBC …
Incorporating special interference tube technology that ensures exceptional directivity and off-axis rejection, the d:screet™ Miniature Podium ... «TV Technology, Lip 15»
Funktion-One equipment for two Beirut rooftop venues
“Because of the highly controlled directivity of Funktion-One Resolution speakers, we were able to overcome this by placing four Res 2s at ... «Audio Media International, Lip 15»
Crystal Acoustics Cuby 9 review | TrustedReviews
... which shoot sound in different directions to achieve what Crystal calls 'Balanced Speaker Directivity'. Of course, these upgrades come with a ... «TrustedReviews, Cze 15»
Martin Audio MLA Controls Sound At Gottwood Festival
Honywill believes the LF containment was down to “a combination of the directivity of the awesome MLX subs, helped in no small way by the ... «Live Design, Cze 15»
DPA Microphones Captures Sweet Sounds For Legendary FOH …
“I like the directivity of the d:vote instrument mics, especially with Forbidden Saints, because they are essentially a loud rock symphony,” adds ... «Live Design, Cze 15»
Aratechlabs unveils Arapolarmic 2.0, with Android support and 15 …
... the directivity of microphones, was demoed for PSNEurope last July (see EXCLUSIVE: Aratechlabs augments microphone placement skills). «PSNEurope, Cze 15»
