propagation+by+layers
1propagation — mid 15c., from O.Fr. propagacion (13c.), from L. propagationem (nom. propagatio) a propagation, extension, noun of action from propagare multiply plants by layers, breed, from propago (gen. propaginis) that which propagates, offspring, from pro… …
2propagation — propagate ► VERB 1) breed by natural processes from the parent stock. 2) promote (an idea, knowledge, etc.) widely. 3) transmit in a particular direction. DERIVATIVES propagation noun. ORIGIN Latin propagare multiply from layers or shoots …
3Non-line-of-sight propagation — Non line of sight (NLOS) or near line of sight is a term used to describe radio transmission across a path that is partially obstructed, usually by a physical object in the innermost Fresnel zone. Many types of radio transmissions depend, to… …
4Radio propagation — is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another. [ H. P. Westman et al, (ed), Reference Data for Radio Engineers, Fifth Edition , 1968, Howard W. Sams and Co.,… …
5Line-of-sight propagation — refers to electro magnetic radiation including light emissions traveling in a straight line. The rays or waves are diffracted, refracted, reflected, or absorbed by atmosphere and obstructions with material and generally cannot travel over the… …
6Anomalous propagation — In Radio: Anomalous propagation includes different forms of electromagnetic wave propagation that are not encountered in a standard atmosphere. While technically the term includes propagation with larger losses than in standard atmosphere, in… …
7Fruit tree propagation — is usually carried out through asexual reproduction by grafting or budding the desired variety onto a suitable rootstock. Perennial plants can be propagated either by sexual or vegetative means. Sexual reproduction occurs when male pollen from… …
8anomalous propagation — A condition prevalent in the troposphere that results in VHF (very high frequency) and UHF (ultrahigh frequency) transmissions being received at very long distances. This is because certain layers of troposphere are bound above and below by… …
9duct propagation — A layer of troposphere bounded above and below by layers that have different refractive index, which confines and propagates an abnormally high proportion of VHF (very high frequency) and UHF (ultrahigh frequency) radiation. This results in freak …
10arcuation — n. 1. (Rare.) Curvature, incurvation, curvity, flexure, bend, crook. 2. Layering, propagation by layers …
