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Digital telecommunication technology has expanded the mobile phone’s role for being increasingly used as a weapon against authoritarian regimes around the world in recent years. The proliferation of mobile phones in China also nurtures growing mobile-phone–facilitated popular protests, with the increasing use of mobile media as a key resource for not just proliferating censored information, but al
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Basic tools to solve an inverse scattering problem for anisotropic media are developed. A transient electromagnetic field impinges upon a slab of anisotropic dispersive medium. The scattering kernels map the incident field to the scattered fields. The inverse scattering problem is to reconstruct the components of the matrix susceptibility kernel from knowledge of the scattering kernels. The method
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En presentation av Lunds Universitets Kyrkohistoriska Arkiv (LUKA) med forskningsexempel av genusvetenskaplig relevans vid IOHA:s världskonferens 2002.
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This paper describes a method to measure the permittivity and the permeability at temperatures from room temperature up to 1000 C using a single rectangular waveguide. The hardware design of the setup that can handle these temperatures and the procedure that is required to correct for the thermal expansion is developed. This includes the sample displacement, the displacement of the calibration ref