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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

Etymology: ME, beem, tree
1 a bedframe fitting for pulleys and weights, used in the treatment of patients requiring weight traction. See Balkan traction frame.
2 (in radiology) the primary beam of radiation emitted from the x-ray tube.

BEAM

[bēm, bē′ē′ā′em′]
abbreviation for brain electric activity map.

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]

beam

a unidirectional emission of electromagnetic radiation. See also x-ray.

external beam therapy
radiotherapy in which the source is at a distance from the patient, e.g. orthovoltage, cesium-137, cobalt-60 or linear accelerator.
beam limitation
restriction of the divergent beam as it appears from the tube window by a lead plate or cone or a light beam diaphragm located at the window.
primary beam
the radiation beam as it passes through the window of the x-ray tube and before it is modified by extra-tube devices.
References in periodicals archive ?
In order to effectively implement sophisticated services that apply 5G features from 2020 onward, it is essential to utilize 28 GHz and other high frequency radio bands, which enable the securing of wide bandwidth, and the utilization of beamforming," said Katsumi Tanoue, Deputy General Manager, Wireless Access Solution Division, NEC Corporation.
Hybrid beamforming requires partitioning between RF and digital domains.
We assume that AP sends frames to a set of selected single antenna users S called beamforming group at the same time, which satisfies K = |S|, K [less than or equal to] M .
We take CPC into account to perform cooperative beamforming, whereas existing literature on the cooperative beamforming aided PLS fails to consider the CPC.
To apply the beamforming technique to the buoys which move and rotate with waves, the POB scheme first calculates the relative direction of the destination node to the transmitting antenna arrays.
Its dual radio architecture supports beamforming in both the 2.
TP-PA8030P KIT Passthrough Powerline Starter Kit utilizes MIMO technology and beamforming to expand coverage throughout the home, including hard-to-reach outlets.
As Collaborate beamforming of WSN can be used to enhance the communication range and transfer message [9, 10], it can complement sensor routing and it finds wide application in sensor and other wireless communication applications.
There have been no prior works on joint TR beamforming and power allocation with CEE for TR multi-user networks, whereas the effect of CEE on TR-based system performance is a greatly desirable problem [7], [13].
The conventional transmit or receive beamforming technique is used to identify the target using phased-MIMO radar.
Except array calibration, another way is to develop superdirective beamforming method with robustness to array uncertainty [5, 9].
Beamforming technology helps to deliver better network range and faster Wi-Fi speeds in the home.