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Relations between scattering data and material parameters in complex media

The symmetries of scattering data of a bianisotropic, homogeneous and dispersive slab are investigated. It is demonstrated how these symmetries can be used to reveal the symmetries of the medium parameters (four three-dimensional susceptibility kernels). The underlying physical experiment is a transient electromagnetic plane wave obliquely incident upon the slab. The analysis is based on time-doma

The use of tongue spots for aging and wing length for sexing Skylarks Alauda arvensis - A critical evaluation

The Skylark Alauda arvensis is a European passerine species lacking plumage dimorphism and having a complete post-nuptial moult in adults, and a complete post-juvenile moult in young birds. Tongue spots were thought to allow age discrimination after moult. Based on data from a study population in the Netherlands, where the age of many birds was known, we show that tongue spots are not useful for a

Summation rules for the antenna input impedance

The Kramers-Kronig relations are probably the most well known dispersion relations [1]. These relations relate the real and imaginary parts of the constitutive relations. Summation rules are closely related to dispersion relations, and they ar important for consistency checks as well as deriving various physical bounds. In [2, 3, 4, 5], a summation rule that relates the absorption and scattering c

Key Performance Indicators for Monitoring and Evaluation of PID and APC Strategies at Manufacturing Operations Management Level in a Natural Gas Processing Unit

Monitoring and control of proper Key Performance Indicators of plant performance have high correlation with business performance. So it is very important at plant-wide level to ensure that process control developments are being developed aligned with business strategy as Advanced Process Control projects have as ultimate goal to help achieving gains in this direction. The ISO 22400 “Key Performanc

Time domain inversion techniques for electromagnetic scattering problems

This paper presents a review of and a comparison between two different methods to solve an inverse scattering problem in the time domain. The problem is that of propagation of transient electromagnetic waves in spatially inhomogeneous slabs of finite length. The permittivity and conductivity profiles are assumed to vary only with depth and the scattering problem is thus onedimensional. Several alg