microwave

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microwave

 [mi´kro-wāv]
a wave typical of electromagnetic radiation between far infrared and radiowaves.

microwave

A 1–100 gigaHerz (109) wave on the electromagnetic spectrum with a wavelength of 1–1000 mm.

Public health
Exposure to microwaves is linked to domestic microwave ovens; leakage of infrared waves ranges from 1 milliWatt/cm2 at the time of sale of a microwave oven to 5 mW/cm2, measured at a distance of 2 inches. Older pacemakers tended to misfire when the wearer was exposed to early microwave ovens, which were also linked to an increase in cataracts.
 
Hazards
Mechanical—eggs and popcorn are particularly hazardous, as they can explode, and the microwaving of metallic objects can result in a fire hazard.
  
There is little data to suggest that microwave exposure is associated with increased morbidity.

microwave

Therapeutics Deep heat therapy The administration of electromagnetic waves that pass between electrodes placed on the Pt's skin, creating heat that ↑ blood flow and relieves muscle and joint pain
References in periodicals archive ?
It is interesting to note that although currently two of the largest factors in the microwave tube industry, namely, Litton and Varian, both had their beginnings as microwave tube manufacturers, today, microwave tubes now constitute between 2% and 10% of those companies' business.
The down-sizing of the military, the reduced tempo of operations and significant reliability improvements have sharply reduced the DOD's microwave tube procurements.
Methodologies exist which should permit the industry to satisfactorily meet the quick-reaction, high-yield, short-production-run procurements that will probably characterize future DOD microwave tube requirements.
Microwave tubes have changed radically as technology has progressed from the tubes of WWII to those of the present.
Microwave tubes powered both the ECM systems that protected our planes and the airborne fire control radars that enabled the precision bombing that so quickly neutralized Iraqi defenses.
D) M-Type Devices: M-Type devices are microwave tubes in which electrons move in crossed external electric and magnetic fields.
Among microwave tubes based on electron bremsstrahlung radiation in a constant magnetic field, the most common are CRMs or gyrodevices.
[2]"Microwave Tubes: A Key Military Technology," Electronic Industries Association.
Richardson Electronics Ltd (NASDAQ:RELL), a provider of engineered solutions, power grid microwave tubes and related components and customised display solutions, reported on Wednesday a decrease in net income for its first fiscal quarter ended 1 September 2012.
Richardson Electronics Ltd (NASDAQ:RELL), a provider of engineered solutions, power grid and microwave tubes and related consumables, on Thursday reported for its fourth quarter ended 2 June 2012 a net income of USD2.7m or USD0.16 per diluted common share, greatly decreased from the net income of USD63.9m or USD3.48 per diluted common share in the same period last year.
According to Richardson Electronics this acquisition positions the company to provide cost-effective distribution, installation and service of microwave tubes to communications, industrial, military and medical users around the world.

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