Electromagnetic burst

Some authors reported the effects of in vitro 60 Hz 0.1 mT magnetic fields exposure on the phorbol 12-myristate-13-acetate (PMA)-induced oxidative burst in peritoneal elicited rat PMNs. The exposed cells showed more than 10% increase of fluorescence than unexposed ones. This work was an early observation that extremely low frequency electromagnetic fields (ELF) influence cellular events by free radical production. ... 

Another means of producing an instantaneous stress on a system at equihbrium is by irradiating it with a burst of electromagnetic radiation. Known as flash photolysis, this technique is based on the fact that absorption of the radiation changes the conditions so that the system must relax to reestabhsh equihbrium. As it does so, the changes can be followed spectro-photometrically. 

Coal rock dynamic disasters such as rock burst and coal and gas outburst have always been major problems in coal mining. A lot of researches prove that coal and rock dynamic disaster is a result of coal and rock rupture quickly, being subject to the comprehensive action of stress and the physical chemistry inside and outside the body. Coal/rock undergoing deformation and failure emits many forms of energy, among which is electromagnetic radiation (EMR) (Wang Zhao 2013). 

Xu Weimin, Tong Wusheng. Rock Burst of Electromagnetic Radiation during the Experimental Study [J]. Geophysics, 1985,28 (2) 67-76. 

A short, usually microsecond, burst of RF electromagnetic radiation. The fixed RF is chosen to be close to the nuclear resonance frequency to be excited. The shorter the pulse, the broader the frequency range that may be excited. The pulse is applied through a conducting coil wound closely around the sample. Pulse nuclear magnetic resonance involves spectral excitation with a short... 

Unplanned criticalities usually produce a brief burst of energy in the form of heat, mechanical energy, electromagnetic radiation, and charged and neutral partide radiatioa... 

Electromagnetic Pulse (EMP) Burst of electromagnetic radiation given off by a nuclear explosion that sends a burst of energy through electronic devices and may severely damage them. 

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