نتایج جستجو برای: discharges electric
تعداد نتایج: 156136 فیلتر نتایج به سال:
Philip K. Stoddard Department of Biological Sciences Florida International University Miami, Florida, 33199, USA Synopsis Electric sense (i.e. the ability to detect low-voltage electrical impulses from other individuals) is found in most primitive fish orders, a few derived teleost fish, some aquatic amphibians, the platypus and the echidna. Electric signals (i.e. self-generated electrical sign...
The weak electric organ discharges (EODs) of gymnotiform knife fishes can be readily amplified with a wideband amplifier connected to submerged electrodes. The output from such an amplifier can then be monitored with audio speakers or digitized for subsequent analysis. Commercially available devices are expensive and usually require mains electrical power. Here we provide design notes and instr...
Strong electric discharges associated with thunderstorms can produce terrestrial gamma-ray flashes (TGFs), i.e., intense bursts of x rays and γ rays lasting a few milliseconds or less. We present in this Letter new TGF timing and spectral data based on the observations of the Italian Space Agency AGILE satellite. We determine that the TGF emission above 10 MeV has a significant power-law spectr...
High resolution (Doppler-resolved) measurement of Doppler-shifted ion absorption frequencies allows the determination of the electric field responsible for the shift. A new method based on velocity modulation laser spectroscopy is described for the nonperturbative measurement of the axial electric fields in glow discharges. The A ‘n, + X I&+ (4.0 ) band of NT has heen used as a probe of a He/N,...
Progress in interventional medicine is associated with the development of more delicate and less invasive surgical procedures, which requires more precise and less traumatic, yet affordable, surgical instruments. Previously we reported on the development of the pulsed electron avalanche knife for dissection of soft tissue in liquid media using the 100 ns plasma-mediated electric discharges appl...
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