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BEAM

 
brain electric activity map; trademark name for a map of brainwave activity derived from a computerized enhancement of electroencephalographic records.

beam

 [bēm]
a unidirectional, or approximately unidirectional, emission of electromagnetic radiation or particles.
useful beam in radiology, that part of the primary radiation that is permitted to emerge from the tubehead assembly of an x-ray machine, as limited by the aperture or port and accessory collimating devices.
beam splitter a device that reflects light from the output phosphor of an image intensifier to a photographic recording. Called also image distributor.

beam

(bēm),
1. Any bar the curvature of which changes under load; in dentistry, frequently used instead of "bar."
2. A collimated emission of light or other radiation, such as an x-ray beam.
[O.H.G. Boum]

beam

Drug slang
A regional synonym for cocaine.
 
Radiation oncology
A focused stream of particles or electromagnetic radiation which is focused in a single direction or body region as part of a therapeutic regimen.

BEAM

Abbreviation for:
BCNU, etoposide, cytarabine, melphalan (a chemotherapy regimen)
Biomedical Equipment Assessment & Management (Medspeak-UK)
brain electrical activity mapping

beam

(bēm)
1. Any bar with a curvature that changes under load.
2. dentistry Synonym(s): bar (2) .
3. A collimated emission of light or other radiation, such as an x-ray beam.
[O.H.G. Boum]

beam

(bēm)
1. Any bar the curvature of which changes under load; in dentistry, frequently used instead of "bar."
2. A collimated emission of light or other radiation.
[O.H.G. Boum]
References in periodicals archive ?
The global side guard door beams market comprises a host of key players.
Get Free Sample Copy of Global Side Guard Door Beams Market 2019 Report at: https://www.marketresearchfuture.com/sample_request/5032
The mirror not only changes shape to adjust the laser beam shape, it can do so with switching intervals of less than five milliseconds.
Caption: With an integrated piezoelectric deformable mirror, a laser beam adapts to varying part angles with switching intervals of less than five milliseconds.
[21] presented an experimental study on the strengthening performance of circular and rectangular CFST beams using unidirectional CFRP sheets.
[17] studied the behaviour of damaged rectangular reinforced concrete (RC) beams strengthened by bolted steel plates considering the effect of corrosion.
In the past, a few experimental studies had been carried out to gauge the effect of the high-performance ferrocement strengthening technique on RCC beams. Kumar and Vidivelli [50, 51] investigated the use of acrylic latex and styrene-butadiene-rubber latex polymer-modified ferrocement to strengthen the RCC beams in flexure.
From the preceding analysis, it is confirmed that sixth last strength of RBS beam locating H shaped form of vertical and horizontal stiffeners in 1/3 length of RBS (b/3) can maintain almost the same strength with the RBS-SLB beams or above 0.8[M.sub.p].
wherein n was positive integer; L referred to the span of beams; [e.sub.0] stood for the eccentricity of pre-stress tendons; [E.sub.S] and [A.sub.S] were elasticity modulus and sectional area of pre-stress tendons; E represented the elasticity modulus of concrete; [I.sub.0] was the inertia bending moment of resistance; m was the total mass of beam body; [eta] was the eccentric correction coefficient of cross-section.
Ductility is an important index to reflect the deformation and energy dissipation of composite beams; in this paper, the displacement ductility coefficient [beta].sub.[DELTA] is used to evaluate the ductility of the beam, the calculation formula of which is as follows:
Daimler uses beam monitoring systems to ensure lasers for welding differential gears are aligned and the focal spot is in the correct position.