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Mostrando ítems 41-50 de 1173
Principios e fisica do laserTratado de Medicina Est??tica
(S??o Paulo, SP: Roca Ltda, 2004)
Application of Herglotz's variational principle to electromagnetic systems with dissipation
This work applies the contact formalism of classical mechanics and classical field theory, introduced by Herglotz and later developed in the context of contact geometry, to describe electromagnetic systems with dissipation. ...
Smart thermomechanochemical composite materials driven by different forms of electromagnetic radiation
(Molecular Diversity Preservation International, 2020-01)
Photo-thermo-mechanochemical (P-T-MCh) nanocomposites provide a mechanical and/or chemical output (MCh) in response to a photonic (P) input, with the thermal (T) flux being the coupling factor. The nanocomposite combines ...
Radiation characteristics of electromagnetic eigenmodes at the corrugated interface of a left-handed material
(American Physical Society, 2009-08)
We study the radiation characteristics of electromagnetic surface waves at a periodically corrugated interface between a conventional and a negatively refracting (or left-handed) material. In this case, and contrary to the ...
Mobile phone radiation and brain cancer at the dawn of the 5G era
(SABI, 2020)
There is great controversy regarding the long-term health risks associated with radio frequency electromagnetic radiation. A systematic review was conducted in order to assess non-thermal effects of these emissions in the ...
Microcontrolled pyro-electric instrument for measuring X-ray intensity in mammography
(2005-12-01)
A novel instrument for measurement of X-ray intensity from mammography consists of a sensitive pyro-electric detector, a high-sensitivity, low-noise current-to-voltage converter, a microcontroller and a digital display. ...
Microcontrolled pyro-electric instrument for measuring X-ray intensity in mammography
(2005-12-01)
A novel instrument for measurement of X-ray intensity from mammography consists of a sensitive pyro-electric detector, a high-sensitivity, low-noise current-to-voltage converter, a microcontroller and a digital display. ...
5G Wireless Communication and Health Effects-A Pragmatic Review Based on Available Studies Regarding 6 to 100 GHz
(International journal of environmental research and public health, 2019)
The introduction of the fifth generation (5G) of wireless communication will increase the number of high-frequency-powered base stations and other devices. The question is if such higher frequencies (in this review, 6-100 ...