directivity

plural directivities

1. countableuncountablebusinessA measure of the performance of an antenna compared to an isotropic antenna; the ratio of the maximum value of radiation intensity to the average radiation intensity.
2. countableuncountablegeographyAnisotropy in the propagation of earthquake waves in the direction of rupture.
3. countablerareuncountableDirectionality

   First we renounced the directivity of the velocity measurement by using a hot point whose size is of order of the wire diameter [4]. Numerical simulations have shown that the probe then measures the velocity modulus [5].

   2012, Russell J. Donnelly, Katepalli R. Streenivasan, Flow at Ultra-High Reynolds and Rayleigh Numbers: A Status Report, Springer Science & Business Media, →ISBN, page 337

   2 more examples

   1991, COSPAR. Plenary Meeting, Jean-Louis Fellous, COSPAR., Global change and relevant space observations: proceedings of Symposium 1 of the COSPAR twenty-eighth Plenary Meeting held in The Hague, the Netherlands, 25 June-6 July 1990, Pergamon For higher degrees, the spatial integration tends to produce a cancellation and a rapid loss of visibility, although less rapidly for velocity measurement than for luminosity measurement, on account of the directivity of the velocity vector.

   2014, Oris, Interaction of Information and Energy as the Primary Cause for origination of the Creative Activity of Self-Consciousness Focus and the Macrocosmos in whole, Ayfaar Foundation Inc. →ISBN That is, in order to begin to function synchronously in a new manifestation mode ( to drastically change the vector directivity of the Focus Dynamics), Formo- Creators of billions of particles must “die”: