Side lobe — In antenna engineering, side lobes are the lobes of the far field radiation pattern that are not the main beam, where the terms beam and lobe are synonyms. An antenna radiation pattern is more commonly called a beam pattern. The power density in… … Wikipedia
nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… … Universalium
N400 (neuroscience) — The N400 is a component of time locked EEG signals known as event related potentials (ERP). It is a negative going deflection that peaks around 400 milliseconds post stimulus onset, although it can extend from 250 500 ms, and is typically maximal … Wikipedia
nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… … Universalium
VHF omnidirectional range — This article is about the radio navigation aid. For other uses, see Vor. D VOR (Doppler VOR) ground station, co located with DME … Wikipedia
Air traffic control radar beacon system — The air traffic control radar beacon system (ATCRBS) is a system used in air traffic control (ATC) to enhance radar monitoring and separation of air traffic. ATCRBS assists ATC radars by acquiring information about the aircraft being monitored,… … Wikipedia
geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… … Universalium
ACOUSTIQUE - Acoustique physiologique — Nous disons que nous entendons un son lorsque des vibrations de l’air ambiant, atteignant notre tympan, le mettent en mouvement dans des conditions d’amplitude et de fréquence telles que cette stimulation mécanique, qui est transmise par… … Encyclopédie Universelle
Tide — This article is about tides in the Earth s oceans. For other uses, see Tide (disambiguation). Tidal redirects here. For other uses, see Tidal (disambiguation). High Tide redirects here. For other uses, see High Tide (disambiguation) … Wikipedia
Radiation pattern — Three dimensional antenna radiation patterns. The radial distance from the origin in any direction represents the strength of radiation emitted in that direction. The top shows the directive pattern of a horn antenna, the bottom shows the… … Wikipedia
Antenna (radio) — Whip antenna on car … Wikipedia