This article investigates the influence of four causal frequency-dependent (FD) soil models and their impact on responses a multiphase overhead transmission line (OHTL) with ground wires, generated by lightning strike. The FD proposed Longmire-Smith (LS), Messier (M), Portela (P) Alípio-Visacro (AV) are considered. ground-return impedance admittance matrices computed Nagakawa approach for both ...

background nosocomial infections are generally occurring 72 hours after admittance and are not present or incubating prior to admittance. the most common nosocomial infection is urinary tract infection (uti). scanty data are available regarding the nosocomial infections in iranian teaching hospitals. the aim of the present study was to determine the frequency of symptomatic nosocomial uti, iden...

Normally off devices like Metal Oxide Semiconductor Transistors (MOSFET) are sensitive to light and can be controlled optically. These devices have high package density, low power consumption and dynamic operating range. In this paper modelling and simulation of MOSFET devices is carried out in 1GHz to 10GHz frequency band. Devices are controlled optically by varying optical power of incident r...

A new method for the computation of a reduced order circuit model, based on numerical elimination of the internal circuit nodes, is presented. The circuit passivity is preserved unlike the majority of other approaches. A 1033 node RC circuit is reduced to an admittance with one pole and two zeros for a frequency range of three decades.

A previous paper [Woodhouse et al., Acta Acustica 5, 15 (2021) https://doi.org/10.1051/aacus/2021009 ] showed acoustical measurements of an American 5-string banjo alongside similar on a guitar, revealing strong contrast in bridge admittance. Theoretical and numerical modelling is now presented to probe the physics behind this contrast. Without strings, membrane has rising trend admittance asso...