منابع مشابه
What we can learn from measurements of air electric conductivity in 222Rn-rich atmosphere
Electric conductivity of air is an important characteristic of the electric properties of an atmosphere. Testing instruments to measure electric conductivity ranging from ~10 to 10Sm in natural conditions found in the Earth atmosphere is not an easy task. One possibility is to use stratospheric balloon flights; another (and a simpler one) is to look for terrestrial environments with significant...
متن کاملStudy of leaky dielectric droplet behavior under an electric field: effect of viscosity and electric conductivity ratios
In this research, hydrodynamic behavior of a leaky dielectric droplet under an electric field is simulated. The level set method is used for interface tracking and the ghost fluid method is used for modeling discontinuous quantities at interface. Using Taylor’s leaky dielectric model, electric field and electric force at the interface is calculated. Simulation results show the droplet deformati...
متن کاملEvolution of force-free electric currents in the solar atmosphere
The new 3-D numerical model studying evolution of force-free electric currents in the solar atmosphere is presented. The initial dipole magnetic field is considered in a simplified active region. Starting from a low electric current, which penetrates the photosphere, and increasing the current intensity, the path of force-free electric current and the corresponding magnetic field are computed. ...
متن کاملEstimation of the Anisotropy of Electric Conductivity via B1 Mapping
Introduction: The electric conductivity can potentially be used as diagnostic information due to its ability to reflect the grade of tissue damage (see, e.g., [1]). In its general form, the conductivity is given by a rank-2 tensor, including anisotropic cases of conductivity. In vivo, anisotropic conductivities can be found in tissue with preferred cell direction, e.g., in muscles and nerves [2...
متن کاملFluctuation-enhanced electric conductivity in electrolyte solutions.
We analyze the effects of an externally applied electric field on thermal fluctuations for a binary electrolyte fluid. We show that the fluctuating Poisson-Nernst-Planck (PNP) equations for charged multispecies diffusion coupled with the fluctuating fluid momentum equation result in enhanced charge transport via a mechanism distinct from the well-known enhancement of mass transport that accompa...
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ژورنال
عنوان ژورنال: Nature
سال: 1915
ISSN: 0028-0836,1476-4687
DOI: 10.1038/096425b0