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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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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]
Farlex Partner Medical Dictionary © Farlex 2012

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
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

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]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
As a result, the beamforming optimization problem is formulated as a multiparametric quadratic programming (mp-QP) [18].
Your colleague Rick Gentile, product manager for Phased Array System Toolbox and Signal Processing Toolbox, commented on hybrid beamforming in an article in the December 2017 issue.
Antennas of adjacent base stations sometimes cause large interference and reduce data rate, but this test used beamforming and digital signal processing to mutually cancel out interference.
3) We analyze and compare the complexity of algorithms to obtain the optimal beamforming vectors in two scenarios.
The basic idea of RT-assisted beamforming is that multiple beams can be steered directly to the dominant directions predicted by the RT tool, thus avoiding the need of exhaustive beam searching [6], but requires knowledge of the terminal position.
Each subarray is differently positioned in order to facilitate the capture of spatial acoustic information using a beamforming technique.
In this paper, the improvement of the connectivity of VANETs is considered by employing beamforming antenna array on vehicles.
In view of the limitations arising from the use of experimental acoustic beamforming for the noise characterization of small wind turbines, we propose an alternative methodology in this paper.
Motivated by these channel measurements and expectations, several studies have put in effort to develop algorithms to estimate the HFB channel parameters that exploit the peculiar nature of the channel [13-15] and design beamforming algorithms [16-18] to increase the achievable data rates.
Compared to the above methods, retro-reflective beamforming technique focuses electromagnetic fields with the aid of pilot signal such that the focal point coincides with the location from which the pilot signal is broadcasted, thus is more suitable for wireless power transmission applications [3,21,22].
Recently, a lot of attention has been drawn to the improvement of secrecy capacity (which is defined in [3] as the difference between the capacity of the legitimate link and that of the wiretapping link) by incorporating relays [5-9] and performing beamforming [7-12].